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Chairs
Technical Manual
DentalEZ® MAKES YOUR PRACTICE PERFECT ®
Chairs
Specifications
Speed Adjustments
J/V-Generation ..........................................................i-2
J Chair®/V Chair..........................................................i-3
Simplicity by DentalEZTM..........................................i-4
Silhouette®...................................................................i-5
Advantage by DentalEZTM........................................i-6
aXcs® II..........................................................................i-7
®
Dimensions
J/V-Generation.............................................................i-8
J-Chair...........................................................................i-9
V-Chair....................................................................... i-10
Simplicity.................................................................... i-11
Silhouette.................................................................. i-12
Advantage.................................................................. i-13
aXcs II......................................................................... i-14
Dip Switch Settings
J/V-Gen./J-3/Silhouette/Advantage/aXcs II.......... i-15
Beep Codes
J/V-Gen./J-3/Silhouette/Advantage/aXcs II.......... i-16
LED Codes
J/V-Gen./J-3/Silhouette/Advantage/aXcs II.... i-17-18
Cleaning & Disinfecting
All DentalEZ Chairs.......................................... i-19-20
Frequently Asked Questions
In General
Hydraulic chair vent lines leaking oil............... i-21
Hydraulic chair back falls overnight................. i-22
J/V Gen. or J-Chair or V-Chair
Resetting soft limits............................................. i-23
Only one control works.................................... i-24
Chair beeps three times..................................... i-25
J/V Gen./J-Chair/V-Chair/Silhouette/Advantage/aXcs
Chair beeps..................................................... i-26-29
Silhouette/Advantage/aXcs II
Resetting soft limits............................................. i-30
aXcs
Resetting soft limits............................................. i-31
Chair will not work............................................. i-32
Chair beeps (old electronics)........................... i-33
Chair beeps after new pot. install..................... i-34
J/V-Generation/J-Chair/V-Chair...................... i-35-36
Simplicity.................................................................... i-37
Silhouette/Advantage/aXcs II................................ i-38
Programming Travel Limits
J/V-Generation.................................................... i-39-40
J Chair/V Chair................................................... i-41-42
Simplicity.............................................................. i-43-44
Silhouette............................................................ i-45-46
Advantage............................................................ i-47-48
aXcs II................................................................... i-49-50
Parts Lists
J/V-Generation (overall)....................................... i-51
Seat Cylinder Assembly/Back............................ i-52
Covers.................................................................... i-53
Chassis Assembly................................................. i-54
Mechanical............................................................. i-55
J-Chair/V-Chair (overall)...................................... i-56
Back/Seat Cylinder Assembly............................ i-57
Covers.................................................................... i-58
Back Assembly...................................................... i-59
Chassis Assembly................................................. i-60
Mechanical............................................................. i-61
Simplicity - Exteriior Components.................. i-62
Electrical................................................................. i-63
Hydraulic................................................................ i-64
Silhouette (overall)................................................ i-65
Covers.................................................................... i-66
Mechanical............................................................. i-67
Sil.Adv./aXcs II - Chassis Assembly................. i-68
Advantage/aXcs II (overall)......................... i-69-70
Covers.................................................................... i-71
Mechanical............................................................. i-72
Wiring Schematics
J/V-Generation.......................................................... i-73
J-Chair/V-Chair......................................................... i-74
Simplicity.............................................................. i-75-76
Silhouette.................................................................. i-77
Advantage.................................................................. i-78
aXcs II......................................................................... i-79
Tubing Diagram
Chairs with Air Glide.............................................. i-80
Technical Manual
Section I Chairs
Page i-1
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J/V-Generation® Chair
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Electrical Power:
15 amp fused Branch Circuit
115 VAC, 50/60 Hz, as applicable
220 VAC, 50/60 Hz, as applicable
Duty Cycle: 3 min. ON, 5 min. OFF
Shipping Weight:
Chair Carton: 320 lbs.
Upholstery Package: 60 lbs.
Technical Manual
Page i-2
Section I Chairs
J-Chair® / V-Chair
Electrical Power: 15 amp fused Branch Circuit
115 VAC, 50/60 Hz, as applicable
220 VAC, 50/60 Hz, as applicable
Shipping Weight:
J-Chair
Chair Carton: 320 lbs.
Upholstery Package: 60 lbs.
J-Chair
V-Chair
310 lbs.
60 lbs.
V-Chair
1
2
3
4
A
B
Technical Manual
Section I Chairs
Page i-3
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Simplicity by DentalEZTM Chair
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Electrical:
Mechanical:
Classification:
Class 1, Type B
Operation Mode: Duty Cycle: Intermittent, 25 sec. ON - 300 sec. OFF
Supply Voltage: 115 VAC, 50/60 Hz, as applicable
230 VAC, 50/60 Hz, as applicable
Fuse Type M:
F1/F2 - 10A, F3 - 100mA
F1/F2 - 6.3A, F3 - 63mA
Control Voltage: 5VDC
Min. Installation Space: 10' x 10' (3m x 3m)
Base Plate Footprint: 35" x 25" (90cm x 65cm)
Total Lift Capacity: 450 lbs.
Max. Patient Weight: 300 lbs.
Delivery System Capacity: 125 lbs.
Empty Weight: 300 lbs.
Package Weight: 396.9 lbs.
Shipping Dimensions: 57"L x 32"H x 34"W
Technical Manual
Page i-4
Section I Chairs
Silhouette® Chair
Electrical Power: 15 amp fused Branch Circuit
115 VAC, 50/60 Hz, as applicable
220 VAC, 50/60 Hz, as applicable
Shipping Weight: Chair Carton: 356 lbs.
Upholstery Package: 36 lbs.
Technical Manual
Section I Chairs
Page i-5
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Advantage by DentalEZTM Chair
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Electrical Power: 15 amp fused Branch Circuit
115 VAC, 50/60 Hz, as applicable
220 VAC, 50/60 Hz, as applicable
AD
Shipping Weight: Chair Carton: 356 lbs.
Upholstery Package: 36 lbs.
VAN
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Technical Manual
Page i-6
Section I Chairs
aXcs® II Chair
Electrical Power: 15 amp fused Branch Circuit
115 VAC, 50/60 Hz, as applicable
220 VAC, 50/60 Hz, as applicable
Shipping Weight: Chair Carton: 356 lbs.
Upholstery Package: 36 lbs.
Technical Manual
Section I Chairs
Page i-7
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J/V-Generation® Chair
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76-1/2"
18-1/2"
24"
18-3/4"
10-1/8"
21-9/16"
27-3/16"
5"
4"
61-1/2"
51"
37-5/8" (high)
23-3/8" (low)
29" (high)
14-3/4" (low)
16-1/2"
26-1/8"
14-3/8"
38"
Technical Manual
Page i-8
Section I Chairs
15˚
15˚
J-Chair®
19"
27.38" 20.63"
9"
23"
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18" 24"
18"
12.25"
76"
63"
36"
41.75"
17"
15º
15º
30"
7"
11"
26"
15"
9.75"
31.5"
28.5"
38"
Technical Manual
Section I Chairs
Page i-9
V-Chair
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76-1/2"
19"
26-1/4"
15°
10"
25-1/2"
19"
28"
15°
57-3/4" max.
47-1/2" min.
28" max.
19" min.
13-3/4"
26-3/4" max.
24" min.
Technical Manual
Page i-10
Section I Chairs
31" max.
24-1/2" min.
Simplicity by DentalEZTM Chair
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76-1/2"
19"
26-1/4"
15°
10"
25-1/2"
19"
28"
15°
57-3/4" max.
47-1/2" min.
28" max.
19" min.
13-3/4"
26-3/4" max.
24" min.
31" max.
24-1/2" min.
Technical Manual
Section I Chairs
Page i-11
Silhouette® Chair
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76-1/2"
18-1/2"
24"
18-3/4"
10-1/8"
25-3/4"
17"
23-1/4"
21-3/4"
14-1/4"
61-1/2"
38"
51"
15º
29-1/2"
15-1/4"
(HIGH)
(LOW)
18-1/2"
15º
Technical Manual
Page i-12
Section I Chairs
Advantage by DentalEZTM Chair
76.5"
18.5"
25"
10.125"
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17"
24"
25.75"
23"
21.5"
14"
36"
61.25"
50.75"
29.25" (HIGH)
15" (LOW)
19.5"
15º
15º
Technical Manual
Section I Chairs
Page i-13
aXcs® II Chair
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76.5"
18.5"
25"
10.125"
17"
24"
25.75"
23.25"
21.75"
14.25"
38"
61.5"
51"
29.5" (HIGH)
15.25" (LOW)
18.5"
15º
Technical Manual
Page i-14
Section I Chairs
15º
J/V-Generation / J-3 / Silhouette / Advantage / aXcs
A DIP switch assembly, which is located at the top
center of the main control board under the base
cover, is used to set certain functions of the chair’s
electronic control package.
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— IMPORTANT —
Change DIP switches only while the chair
power is disconnected. Once the chair power is
reconnected, the main control board will
recognize any changes made.
NOTE: The main control board expects at least one controller attached to the M (main) wiring connector. If there is no controller attached to either the M or A (auxiliary) connectors, the board will generate
a service LED code that indicates one of the controllers needs checking.
DIP Sw itch State Function
#1
#2
#3
#4
#5
#6
ON
Controller M is ON and the board assumes back switch controller is connected.
OFF Speci al installation mode (base automatically rises when power is connected.)
ON Controller A is ON and the board assumes an optional controller is connected.
OFF
ON
OFF
ON
O FF
ON
OFF
ON
OFF
Controller A is OFF and the board assumes no controller is connected.
Function command activation signal beeps are activated.
Function command activation signal beeps are silenced.
Travel limits programming mode.
Normal operation mode.
Three-function chair mode: base, back and seat functions.
Two-function chair mode: base and back/seat functions.
Must be in OFF position
Technical Manual
Section I Chairs
Page i-15
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The chair’s electronic control package is designed to sound specific beep code signals to alert the operator of certain control conditions. Understanding the beep codes enables the operator to isolate the condition and take appropriate action.
Base conditions are indicated by a constant short beep; back conditions by two constant short beeps; and seat conditions by three constant short beeps. Three short beeps indicate a function is not available when its button is pressed.
A constant fast beep that sounds only when a function is moved indicates a potentiometer condition.
The beep code signal chart below lists the audible sound, control condition and service action to take. The codes are
also prioritized letting the user know that conditions listed above the indicated code are normal.
B ee p C o d e
C ondition
Action
Constant
fast beep (FB)
Constant
short beep (S B)
Speci al i nstallati on mode (base
automati cally ri ses)
Base lower safety cover contacted and
moved up acti vati ng swi tches (LS 2 &
LS 3)
Di sconnect the chai r power. Move #1 D IP swi tch to
ON . Reconnect the chai r power.
Move the base up and remove obstructi on under
cover.
Cover i s jammed
Move cover a round unti l i t's free then push the cover
up to make sure i t's worki ng properly.
Constant (S B)(S B)
Constant
(SB )(SB )(S B)
Constant (S B)
(SB )(SB )(S B)
When any control
button i s pressed
(except auxi li ary li ght
relay)
Base upper li mi t swi tch (LS 1)
Reprogram the chai r's travel li mi ts.
acti vated (base exceeded i ts upper
travel li mi t)
Back upper li mi t swi tch (LS4) acti vated Reprogram the chai r's travel li mi ts.
(back exceeded i ts upper travel li mi t)
Seat upper limi t swi tch (LS 5) acti vated Reprogram the chai r's travel li mi ts.
(seat exceeded its upper travel limi t)
Seat lower li mit swi tch (LS6) acti vated
(seat exceeded its lower travel li mi t)
Auxi li ary li mi t swi tch (LS7) wi re
connectors unplugged
Reprogr am the chai r's travel li mi ts.
Make sure connectors are plugged i n securely.
Auxi li ary li mi t swi tch acti vated (user
i nstalled opti on)
Handpi ece safety wi re connectors
unplugged
Determi ne where the swi tch i s i nstalled and why it
was acti vated. Then appropri ately deacti vate swi tch.
Make sure connectors are plugged i n securely.
Handpi ece safety swi tch acti vated
(user-i nstalled opti on)
Determi ne where swi tch i s i nstalled and why swi tch i s
acti vated. Then appropriately dea cti vate swi tch.
When any control auto
button i s pressed
Auto posi ti on program i s not acti vated Determi ne whi ch potenti ometer i s locki ng out the auto
because one or more potenti ometers
programs by checking the servi ce LE D codes or by
are di sconnected or out of range
movi ng each functi on until a constant (FB) is si gnaled
whi le the functi on i s i n moti on. Check the i ndi cated
potenti ometer's wi ri ng and li nkage for proper functi on.
Then check the potenti ometer resi stance and voltage.
Whi le i n travel li mi ts
programming mode
(D IP swi tch #4 i s ON)
and either auto 1 or 2
button i s pressed)
Cannot program travel li mi ts because
one or more potenti ometers are
di sconnected or out of range
Constant (FB )
Only whi le a functi on i s
movi ng
The potenti ometer on the acti vated
movi ng function i s di sconnected or out
of range
Determi ne whi ch potenti ometer i s locki ng out the
travel li mi ts program by checki ng the servi ce LED
codes or by movi ng e ach function unti l a constant (FB)
i s si gnaled whi le the functi on i s i n moti on. C heck the
i ndi cated potenti ometer's wi ri ng and li nkage for
proper functi on. Then check the potenti ometer's
resi stance and voltage.
Veri fy the suspected potenti ometer by checki ng the
servi ce LE D codes. Check the potenti ometer's wi ri ng
and l i nkage for proper functi on. Then check the
potenti ometer's resi stance and voltage.
Technical Manual
Page i-16
Section I Chairs
J/V-Generation / J-3 / Silhouette / Advantage / aXcs
There is a three-light LED assembly on the main control board that indicates each power up mode and various
service conditions the chair may encounter. The LED assembly is located at the top center of the main control board
(left of the DIP switch assembly) under the base cover.
The power-up codes are described in the table below.
A service condition LED code chart appears on the next page. The LED codes are prioritized from top to bottom letting the user know the conditions listed above the indicated code are normal.
LEGEND
LED states: l = On
m = Off
k = Blinking
(The LED nearest the main
control board is number one.)
LED Code Beep Code DIP Sw itch Mode
P
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B
O
A
R
D
●●●
❍❍●
❍● ❍
● ❍❍
●●●
❍❍❍
●●●
●●●
●●●
●●●
●●●
❍❍❍
❋ ❋ ❋
(SB)
#1 On, #4 Off
Normal operating
#1 On, #4 On
Travel limits programming
(SB)
(SB)
(SB)
(SB)
(SB)
(SB)
constant (FB) #1 Off
Special installation (base automatically rises)
Technical Manual
Section I Chairs
Page i-17
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LED C ode
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❋ ❋ ❋
❍❍❋
❍❋ ❍
❍❋ ❋
Condition
Action
Speci al i nstallati on mode
Di sconnect the chai r power. Move #1 D IP swi tch to On.
Reconnect the chair power.
A /D converter fai lure
Replace the chai r mai n control board.
E EP ROM fai lure
Replace the chai r mai n control board.
Handpi ece safety wi re connectors unplugged Make sure connectors are plugged i n securely.
Handpi ece safety swi tch activated (useri nstalled opti on)
B ase lower safety cover contacted and
moved up acti vati ng swi tches (LS2 &LS 3)
Determi ne whe re the swi tch i s i nstalled and why it was
acti vated. Then appropri ately deacti vate the switch.
Move base up and remove obstucti on under the cover.
● ❍❍
C over i s jammed
Move the cover around unti l i t's free, then push the cover
up to make sure i t's worki ng properly.
● ● ❍
B ase upper li mi t swi tch (LS1) acti vated
Reprogram the chai r's travel li mi ts.
(base exceeded i t's upper travel li mi ts)
B ack upper l i mi t swi tch (LS 4) acti vated
Reprogram the chai r's travel li mi ts.
(back exceeded i ts upper travel li mi t)
S eat upper li mi t swi tch (LS5) acti vated (seat Reprogram the chai r's travel li mi ts.
exceeded i ts upper travel li mi t
● ❍●
S eat lower li mi t swi tch (LS6) acti vated (seat
exceeded i ts lower travel li mi t
A uxi li ary li mi t swi tch (LS7) wi re connectors
unplugged
Reprogram the chai r's travel li mi ts.
Make sure connectors are plu gged i n securely.
❍● ❍
A uxi li ary li mi t swi tch acti vated (user-i nstalled
opti on)
B ase potenti ometer (P 1) i s di sconnected or
❍❍●
Only whi le base i s moving out of range
B ack potenti ometer (P 2) i s di sconnected or
❍● ●
Only whi le back i s movi ng out of range
S eat potenti ometer (P 3) i s di sconnected or
● ● ●
Only whi le seat i s movi ng out of range
C ontroller M (mai n) wi ll not cali brate
Make sure a controller i s connected to the M wi ri ng. If
only one controller i s used, i t should be connected to M.
❋ ❍ ❍
C ontroller A (auxi li ary) wi ll not calibrate
❍❍●
❍● ●
When chair i s i dle
● ● ●
When chair i s i dle
❍❍❍
Di sconnect and reconnect chai r power forci ng controller
cali brati ons. Replace controller if i t still wi ll not cali brate.
Check wiring for breaks or loose connections. Check for
stuck swi tches.
If a controller i s not connected to A, change #2 DIP
swi tch to OFF so i t wi ll not cali brate.
❋ ❍ ❋
When chair i s i dle
Determi ne where the swi tch i s i nstalled and why it was
acti vated. Then appropri ately deacti vate the switch.
Check the base potenti ometer's wi ri ng and li nkage for
proper functi on. Then check i ts resi stance and voltage.
Check the back potentiometer's wi ri ng and li nkage for
proper functi on. Then check i ts resi stance and voltage.
Check the seat potenti ometer's wi ri ng and li nkage for
proper functi on. Then check i ts resi stance and voltage.
Check wiring for breaks or loose connections. Check
for stuck swi tches.
B ase potenti ometer (P 1) i s di sconnected or
out of range
B ack potenti ometer (P 2) i s di sconnected or
out of range
S eat potenti ometer (P 3) i s di sconnected or
out of range
Normal
Di sconnect and reconnect chai r power forci ng controller
cali brati ons. Replace controller if i t still wi ll not cali brate.
Check the base potenti ometer's wi ri ng and li nkage for
proper funci ton. Then check i ts resi stance and voltage.
Check the back potentiometer's wi ri ng and li nkage for
proper functi on. Then check i ts resi stance and voltage.
Check the seat potenti ometer's wi ri ng and li nkage for
proper functi on. Then check i ts resi stance and voltage.
Technical Manual
Page i-18
Section I Chairs
Section VI Care
J/V-Generation™ Chair
All DentalEZ Chairs
Chair Upholstery
— WARNING —
Improper cleaning and disinfection techniques could lead to cross-contamination.
Therefore, prior to each use, properly clean
and disinfect the chair's exterior in accordance with normal dental procedures.
Before attempting to clean or disinfect the DentalEZ
Chair, please read the following instructions carefully.
— NOTICE —
The upholstery cleaning/disinfecting information contained in this Section is not a guarantee
but represents highly recommended procedures
obtained from the upholstery manufacturers.
Cleaning
— IMPORTANT —
Pay strict attention to all the cleaning product
manufacturer's warnings and cautions.
Because any cleaning product may be harmful or
irritating:
✔ Use protective gloves and eye protection in a
well ventilated area.
✔ Do not inhale or swallow any cleaning product.
✔ Protect surrounding surfaces and clothing from
exposure.
When using strong cleaning agents, such as bleach or
alcohol, it is advisable to first test them in an inconspicuous area to be certain they will not damage the
upholstery, plastic or metal surfaces of the J/VGeneration Chair. (Results may vary under actual conditions.)
— CAUTION —
Cleaning agents, other than household bleach
or rubbing alcohol, may contain harsh or
unknown solvents. Also, these other cleaning
agents are subject to formula changes made by
the manufacturer without notice.
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Installation, Operation and Care Manual
Technical
1. To remove light soil:
a. Prepare a solution comprised of one part
household dishwashing liquid and nine
parts warm water.
b. Apply the dishwashing liquid solution to
the upholstery using a sponge or soft,
damp cloth. If necessary, a soft bristle
brush may be used.
c. Using a soft cloth dampened in clean
water, wipe away any residue and dry.
2. To remove heavy soil:
a. Dampen a soft, white cloth with lighter
fluid (naphtha) and rub the area gently.
b. Using a soft cloth rinse thoroughly with
clean water and pat surface dry.
3. To remove stains using bleach:
a. Prepare a solution comprised of one part
household bleach (sodium hypochlorite)
and nine parts water.
b. Apply the bleach solution to the stain
using a dampened, soft, white cloth.
c. Allow the bleach solution to puddle on
the affected area, or apply a bleach
solution-soaked cloth to the area for
approximately 30 minutes.
d. Using a soft cloth dampened in plain
water, rinse the treated area thoroughly to
remove any bleach residue.
4. To remove stains using alcohol:
a. Dampen a soft, white cloth with rubbing
alcohol and rub the stain gently.
b. Using a soft cloth dampened in clean
water, rinse the treated area thoroughly to
remove any alcohol residue and pat dry.
5. To restore luster:
a. Apply a light coat of spray furniture wax
containing lemon.
b. Wait 30 seconds and lightly buff the
surface using a clean, white cloth.
Manual
Section I Chairs
Page i-19
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Section VI Care
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All DentalEZ Chairs
Ultraleather™
Spot clean with mild soap and water
Air dry or dry quickly with warm setting of a
hair dryer
For stubborn stains, use mild solvent
For extremely stubborn stains, an alcoholbased solvent can be used
Dry cleanable by conventional methods using
commercial dry cleaning solvents
Ultraleather is a trademark of Ultrafabrics, LLC.
Plastic and Coated Metal Surfaces
— CAUTION —
NEVER use abrasives or petroleum-based
cleaners on any plastic or coated metal surfaces
unless otherwise specified.
1. To remove ordinary dirt:
a. Prepare a soapy solution comprised of
household dishwashing liquid and water.
b. Using a soft cloth or sponge, apply this
soapy solution to the plastic and coated
metal surfaces.
NOTE: To remove heavier dirt, apply Formula
409® or Fantastik ® Spray Cleaner.
c. Wipe area dry immediately using a soft cloth.
2. To remove stubborn stains:
a. Apply a mild abrasive such as toothpaste or
liquid tooth polish using a soft, white cloth.
b. Using a chamois or moist sponge, remove
all traces of the mild abrasive.
c. Dry the area thoroughly to prevent marking.
Formula 409 is a registered trademark of the Clorox Company.
Fantastik Spray Cleaner is a registered trademark of the Texize
Division of Dow Products, Inc.
Metal Surfaces and Chrome Parts
For ordinary dirt, fingerprints, etc., use a non-abrasive,
all-purpose cleaner.
Disinfecting
Upholstery
The J/V-Generation Chair's upholstery is comprised
of material from the following manufacturers:
MOR-CARE™ Collection from MORBERN
MOR-GUARD from MORBERN was developed
to meet the increased demands of hospital, contract and institutional use. Offers enhanced resistance to most common chemicals used for sterilization and cleaning in medical environments. Contains both an antibacterial and antimicrobial agents
to provide resistance to a wide range of bacteria.
Naugahyde® BeautyGard™ from UNIROYAL
Naugahyde brand fabrics, Spirit II and Neochrome
II with advanced BeautyGard contains an agent to
protect it against bacterial and fungal microorganisms. This product has been formulated to achieve
a superior level of disinfectability with disinfectant
products containing sodium hypochlorite (common
household bleach) diluted 1:10.
Mayfair/Savoy with Permablok3® from Spradling®
Mayfair/Savoy fabrics with Permablok advanced
vinyl protection contain an antimicrobial and
antibacterial protection on an anti-stain finish that
is easily cleaned. Mayfair/Savoy with Permablok
provides exceptional disinfectability using a wide
range of cleaning products.
Ultraleather™ from Ultrafabrics, LLC
Disinfect with a 5:1 non-chlorinated bleach
solution
Potentially toxic aftercare not required
MOR-CARE is a trademark of Morbern, USA Inc. Naugahyde is a
registered trademark and BeautyGard is a trademark of Uniroyal
Engineered Products, Inc. Permablok 3 is a registered trademark of
Spradling International, Inc.
All Other Chair Surfaces
Cavicide™ is recommended for disinfecting all other
surfaces of the J/V-Generation Chair. The use of any
disinfectant, other than Cavicide, may cause premature staining, discoloration or damage to the J/VGeneration Chair's materials.
Cavicide is a trademark of Micro Aseptic Products, Inc.
Technical Manual
Page i-20
Section I Chairs
J/V-Generation™ Chair
21
Replace with
PN: 3802-110.
Plastic
Are the vent
Metal
line fittings
plastic or metal?
Replace with
PN: 1117-135,
2533-057.
FAQ #16
Why are the hydraulic chair vent lines leaking oil?
All DentalEZ Chairs
Technical Manual
Section I Chairs
Page i-21
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Technical Manual
Section I Chairs
Fix/repair
leak/hose.
Replace touch pad/
foot control/harness.*
Measure voltages of touch
pad or foot control.
Correct Are the voltages correct
per the tech tip chart,
"Understanding Chair
Control Device"?
Not Correct
Call Tech
Service.*
Yes Are there any signs No
of oil leaking?
*Call Tech Service for information & correct PNs. (1-866-DTE-INFO)
Replace back
cylinder.*
Pull down on the
Yes chair back. Does No
oil leak into the
clear vent line?
Place the chair back in
its
full upright position. No
Yes
Then unplug the chair
power overnight. Does
the back still fall?
FAQ #41
Why does the hydraulic chair back fall overnight?
All DentalEZ Chairs
J/V-Generation / J-3 / V-Chair
How are soft limits reset?
(New Electronics, 3-Function)
1. Disconnect power to the chair. Then remove the pump cover.
2. Flip dip switch #4 to the ON position (away from the board).
3. Reconnect power to the chair.
UP LIMITS
a. Using the manual buttons, raise the base until the chair starts beeping.
b. Lower the base until the chair stops beeping. Then lower the base a little more so that it
is not too close to the safety limit switch.
c. Raise the back until the chair starts beeping.
d. Lower the back until the chair stops beeping. Then lower the back a little more so that it
is not too close to the safety limit switch.
e. Raise the toe of the seat until the chair starts beeping.
f. Lower the toe of the seat until the chair stops beeping. Then lower the seat a little more so
that it is not too close to the safety limit switch.
g. Press and release auto button #1, but do not hold. (A short beep will sound when the
button is pressed, another beep will sound when the button is released.)
DOWN LIMITS
a. Put your foot on the base plate of the chair under the base. Then lower the base until the
base cover touches your foot and the chair starts beeping.
b. Raise the base until the chair stops beeping. Then raise the base a little more.
c. Lower the back all the way down. (It will not beep .) Then raise the back slightly.
d. Lower the toe of the seat until the chair starts beeping. Then raise the toe of the seat
until the chair stops beeping. Then raise the toe a little more.
e. Press and release auto button #2, but do not hold. (A short beep will sound when the button
is pressed, another beep will sound when the button is released.)
4.
5.
6.
7.
Disconnect power to the chair.
Flip dip switch #4 to the OFF position.
Reconnect power to the chair and replace the pump cover.
Using the manual buttons, set the chair to a desired position. Then press and hold an auto
button for appoximately 5 seconds. (A short beep will sound when the button is pressed, another
beep will sound when the button is released.) Repeat this step to set a total of 8 auto positions
(4 A-green LED and 4 B-yellow LED).
FAQ #2
Technical Manual
Section I Chairs
Page i-23
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Page i-24
Section I Chairs
Technical Manual
Replace board in foot
control. PN: 3801-763
Yes
Replace control
board in control
head. PN: 3801-763
nections. Are any found?
Check harness to control
Yes for breaks or loose con- No
Plug switches in individually,
reset chair each time to
determine which switch
is bad and replace.
Traditional unit, PN: 3801-986;
Euro style, PN: 3802-137
Replace harness.
PN: 3801-768
Replace control
board.
PN: 3801-765
Remove acorn nuts from
Yes
Was chair
manufactured No
prior to
July, 2003?
No
Check wires from
control for frays,
breaks or loose Yes
connections.
Are any found?
Replace control
board. PN: 3801-765
FAQ #31
Replace covers.
Have a nice day!
& reset char.
Do LEDs # start blinking?
back side of control board,
Yes reset 25 pin "D" connector No
Replace harness.
PN: 3801-768
Yes
Check "A" harness
to control board for No
loose connections
or broken wires.
Are any found?
Replace control switch.
Foot switch, PN: 3625-548;
J/V Gen TP membrane, PN: 3801-986;
J-3, Right TP - PN: 3801-894,
Left TP - PN: 3801-895
No
Does chair beep when Yes
control is activated?
Move foot switch to "M"
harness & reset chair. No
Does LED #1 blink?
Unplug both switches
Yes from board in control No
head and reset chair.
Do LEDS start blinking?
touchpads on
the control head?
Replace harness.*
& #3 blinking?
Yes Are LEDs #1 No
Is second control
Unit on unit or a Foot Switch
foot switch?
One Is there one or two Two
Replace left side
switch panel.
PN: 3801-895
Unplug the membrane
in the control from the
No board and reset chair. Yes
Do LEDs #1 & 3
start blinking?
Replace membrane switch.
Standard - PN: 3801-986;
New Euro - PN: 3802-137
Plug switches in one at a
time, reset chair each
time to determine which
switch is bad & replace.
J-Chair - left PN: 3801-895,
right PN: 3801-894;
V-Chair - left PN: 3801-914,
right PN: 3801-913;
JV Generation - PN: 3517-140
Replace right side
switch panel.
PN: 3801-894
* For part # information contact Tech Service at 1-866-DTE-INFO.
Replace harness.
PN: 3801-768
Replace board.
PN: 3801-763
No
and reset chair.
Does LED #?
start blinking?
Yes control board
Take board from
back, plug it in by
reset chair. Does LED
#1 start blinking?
Unplug switch harness
Yes from board in back & No
Yes Plug in left side switch & unplug No
right side switch panel & reset
chair. Does LED #1 blink?
back cushion, unplug
Yes Remove
left side switch panel & reset No
chair. Does LED #1 blink?
blinking?
Yes Is LED #1 No
Why is only one control working? (3-Function, w/2 Controls)
J/V-Generation / J-3 / V-Chair
Is seat in full up or
down position?
Section I Chairs
FAQ #46
Remove the seat cushion
Unplug chair and plug in
No connectors. Reset chair. Yes
and unplug the chair.
Remove the connectors
Does beeping stop?
No from safety limit switches Yes
in center of the seat area.
Replace seat cushion.
Using paper clips, jump
With electrical
There is a break
Have a nice day!
across connectors. Reset
meter, do continuity
in the wires.
chair. Does beeping stop?
check on safety limit
Replace wire
switches
to determine
harness,
which switch has gone
PN:3801-768.
out. Order replacement PN: 3801-431.
Reprogram the
soft limits.
No Run seat up. Does Yes
beeping stop?
Down
Remove seat cushion and
check the harness on the
Yes safety limit switches in the No
center of the seat area.
Are connectors plugged in?
No
Run seat down.
Does beeping stop?
Reprogram the
soft limits.
Yes
Up
Why is chair beeping three times?
J/V-Generation / J-3 / V-Chair
Technical Manual
Page i-25
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Page i-26
1 beep and
a pause Click Here!
1 Beep & a Pause
2 beeps and
a pause Click Here!
2 Beeps & a Pause
3 beeps and
a pause Click Here!
Is beeping 1 beep and a 3 Beeps & a Pause
pause, 2 beeps and a pause
or 3 beeps and a pause?
FAQ #7
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Why is the chair beeping?
J/V-Generation / J-3 / V-Chair / aXcs II / Silhouette / Advantage
Technical Manual
Section I Chairs
Section I Chairs
No
Bypass safety
switch. Does Yes
beeping stop?
No
Replace
safety switch.
PN: 3801-431
Reset limits and
adjust speeds
as necessary.
No
Run base down.
Reset connection
Yes to safety switch.
Reset power. Does
beeping start?
Yes
No
Bypass safety
switch. Will
base run down?
Reset soft
limits, reprogram
auto functions
(all 8) and adjust
speeds as needed.
Replace
control board.
PN: 3801-765
No
prior to
July, 2003?
Was chair
Yes manufactured
Yes
Repair or
replace harness.
PN: 3801-768
FAQ #7A
Replace
control board.
PN: 3801-765
No
prior to July, 2003?
No
Check wires from
the safety switch
Yes to the control
board. Are any
broken or pulled
from connectors?
No
beeping stop?
Bypass safety
Yes switch. Does
No
beeping stop?
Yes Release cover. Does
Yes
safety switches?
Is safety cover
No stuck up activating
Yes Was chair manufactured
Replace
safety switch.
PN: 3801-431
Determine and
repair cause of
sticking cover.
Check base safety
circuit for loose or
broken wires. Repair
or replace harness.
PN: 3801-768
Unplug chair, remove "D"
connector on P4 on the
control board and remove No
Yes acorn nuts on back side of
the conrol board, reset "D"
connector, then reset power
plug. Does beeping stop?
Check voltage
across
the black
No and white
wires.
Is there
2.188 VDC ± .150?
Unplug chair, remove
"D" connector on P4
on the control board
and remove acorn
Yes nuts on back side No
of conrol board, reset
"D" connector, then
reset power plug.
Does base run down?
Replace
control board.
PN: 3801-765
Replace
safety switch.
PN: 3801-431
On control, will No
base down work?
Check wires from
the safety switch
Yes to the control No
board. Are any
broken or pulled
from connectors?
Repair or
replace harness.
PN: 3801-768
Reset soft limits,
reprogram auto
functions (all 8)
and adjust speeds
as needed.
beeping stop?
Run base
Yes down.
Does
Yes
limit switch. Is it activated?
Yes Check the base up safety No
(1 beep and a pause)
Why is the chair beeping?
J/V-Generation / J-3 / V-Chair / aXcs II / Silhouette / Advantage
Technical Manual
Page i-27
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Check the wires and
connections from the
switch to the control
board for broken wires,
loose connections or
pins backed out of
connectors. Repair as
needed or replace the
harness. PN 3801-768
Replace safety
switch.
PN: 3801-431
No
Does beeping stop?
Yes Bypass safety switch.
Reset soft limits,
reprogram auto
functions (all 8)
and adjust speeds
as needed.
Yes
Technical Manual
Section I Chairs
Reset soft limits,
reprogram auto
functions (all 8)
and adjust speeds
as needed.
Replace safety
switch.
PN: 3801-431
Yes
Yes
Was chair manufactured No
prior to July, 2003?
No
Check wires from safety
switch to control board. Yes
Are any broken or
pulled from connectors?
Yes
Do a continuity check
on safety limit switch. No
Does it read closed?
Unplug chair, remove "D"
connector on P4 on the
control board and remove
Yes acorn nuts on back side No
of conrol board, reset "D"
connector, then reset power
plug. Does beeping stop?
Bypass safety
switch. Does No
beeping stop?
Run back down. No
Does beeping stop?
back down work?
No On control, will Yes
Is it activated?
the back up
Yes Check
safety limit switch. No
(2 beeps and a pause)
FAQ #7B
Replace control
board.
PN: 3801-765
Repair or
replace harness.
PN: 3801-768
Replace back up
safety switch.
PN: 3801-431
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Why is the chair beeping?
J/V-Generation / J-3 / V-Chair / aXcs II / Silhouette / Advantage
Section I Chairs
Reset soft limits,
reprogram auto
functions (all 8)
and adjust speeds
as needed.
Yes
prior to July, 2003?
No Was chair manufactured
No
Replace control board.
PN: 3801-765
Reset soft limits,
reprogram auto
functions (all 8)
and adjust speeds
as needed.
Unplug chair, remove "D" connector
on P4 on control board and remove
Yes acorn nuts on back side of conrol No
board, reset "D" connector, then
reset power plug. Does beeping stop?
Replace control board.
PN: 3801-765
Repair or replace
harness.
PN: 3801-768
Using control,
does seat up No
function run?
Yes
Check seat safety No
limit switches.
Are either activated?
Run the
seat up.
No Does the Yes
beeping
stop?
Check wires from safety
Yes switch to control board.
Are any broken or
pulled from connectors?
No
beeping stop?
Bypass safety
Yes switch. Does
function run?
Using control,
or down?
Up Is seat up Down
Yes does seat down No
Replace safety switch.
PN: 3801-431
Run seat the
down off limit,
reset the soft
limits, reprogram
the autos (all 8)
& adjust speeds
as needed.
Yes
(3 beeps and a pause)
Yes
No
Check the wires
and connections
from switch to
the control board Yes
for broken wires,
loose connections
or pins backed out
of connectors.
Are any found?
Do a continuity
check on safety No
limit switch. Does
it read closed?
Why is the chair beeping?
FAQ #7C
Replace
harness.
PN: 3801-768
Replace switch
or switches
as needed.
PN: 3801-431
J/V-Generation / J-3 / V-Chair / aXcs II / Silhouette / Advantage
Technical Manual
Page i-29
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How are soft limits reset?
(New Electronics, 2-Function)
1. Disconnect power to the chair. Then remove the pump cover.
2. Flip dip switch #4 to the ON position (away from the board).
3. Reconnect power to the chair.
UP LIMITS
a. Using the manual buttons, raise the base until the chair starts beeping.
b. Lower the base until the chair stops beeping. Then lower the base a little more so that it
is not too close to the safety limit switch.
c. Raise the back until the chair starts beeping.
d. Lower the back until the chair stops beeping. Then lower the back a little more so that it
is not too close to the safety limit switch.
e. Press and release auto button #1, but do not hold. (A short beep will sound when the
button is pressed, another beep will sound when the button is released.)
DOWN LIMITS
a. Put your foot on the base plate of the chair under the base. Then lower the base until the
base cover touches your foot and the chair starts beeping.
b. Raise the base until the chair stops beeping. Then raise the base a little more.
c. Lower the back all the way down. (It will not beep .) Then raise the back slightly.
d. Press and release auto button #2, but do not hold. (A short beep will sound when the button
is pressed, another beep will sound when the button is released.)
5.
6.
7.
8.
Disconnect power to the chair.
Flip dip switch #4 to the OFF position.
Reconnect power to the chair and replace the pump cover.
Using the manual buttons, set the chair to a desired position. Then press and hold an auto
button for appoximately 5 seconds. (A short beep will sound when the button is pressed, another
beep will sound when the button is released.) Repeat this step to set a total of 3 auto positions.
FAQ #4
Technical Manual
Page i-30
Section I Chairs
aXcs
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How are soft limits reset?
(Old Electronics, 2-Function)
1.
2.
3.
4.
Disconnect power to the chair. Then remove the pump cover.
Remove the white wire on JP5 on the control board.
Install a jumper on the two pins on JP5.
Reconnect power to the chair.
UP LIMITS
a. Raise the base until the chair starts beeping.
b. Lower the base until the chair stops beeping. Then lower the base a little more so that it
is not too close to the safety limit switch.
c. Raise the back until the chair starts beeping.
d. Lower the back until the chair stops beeping. Then lower the back a little more so that it
is not too close to the safety limit switch.
e. Press and release auto button #1, but do not hold. (A short beep will sound when the
button is pressed, another beep will sound when the button is released.)
DOWN LIMITS
a. Put your foot on the base plate of the chair under the base. Then lower the base until the
base cover touches your foot and the chair starts beeping.
b. Raise the base until the chair stops beeping. Then raise the base a little more.
c. Lower the back all the way down. (It will not beep .) Then raise the back slightly.
d. Press and release auto button #2, but do not hold. (A short beep will sound when the button
is pressed, another beep will sound when the button is released.)
5.
6.
7.
8.
Disconnect power to the chair.
Remove the jumper on JP5 and reinstall the white wire.
Reconnect power to the chair and replace the pump cover.
Using the manual buttons, set the chair to a desired position. Then press and hold an auto
button for appoximately 7 seconds. (A short beep will sound when the button is pressed, another
beep will sound when the button is released.) Repeat this step to set a total of 3 auto positions.
FAQ #3
Technical Manual
Section I Chairs
Page i-31
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Page i-32
wire on JP7 on the control board
to the gray wire at the back potentiometer. Is there an open circuit?
Using a voltmeter, do a continuity
Technical Manual
Section I Chairs
Replace interface
board. PN: 3801-661
No
Measure voltage across the
two outside pins at JP104. Yes
Is there 5 VDC?
No
Measure voltage across the
two outside pins at JP103. Yes
Is there 5 VDC?
Replace back
potentiometer.
PN: 3801-546
No
Inspect the wires from the
controller to the control board.
No
FAQ #14
Replace the membrane PN: 3801-844, or if
needed, the complete controller PN: 3801-644.
Voltage is going from controller to control
board. Inspect connections and wires. Then
refer to the Control Not Working chart or
call Techincal Support, 1-866-DTE-INFO.
Replace potentiometer.
PN: 3801-546, Back
PN: 3801-435, Base
Have electrician
provide 115V.
Check for breaks or
loose connections from
back and base potentiometers to control board.
Is there 5K± 10%?
Do same test on Yes
No base
potentiometer.
Replace control
board. PN: 3801-541
receptacle. Is there 115V?
Yes Using a voltmeter, check No
Using a voltmeter, check Yes
fuses. Do they check good?
Replace base
potentiometer.
PN: 3801-435
Does chair beep
when a button Yes
is activated on
the controller?
Replace control
board. PN: 3801-541
No
No
Using a voltmeter, do an
ohms reading across pins
1 & 3 (two outside) on Yes
thebpack potentiometer.
Is there 5K± 10%?
Take ohms reading across
terminals 2 & 3 and terminals Yes
1 & 3. Is there 5K± 10% on
either potentiometer?
Measure voltage on the Yes
black wire at controller.
Is there 5 VDC?
No
Reset soft limits. Make sure both gears are
turning on the base potentiometer. If
membrane-style back potentiometer, make
sure actuator is pointing toward toe of chair.
back and base
Yes Check
potentiometers. Are No
either at full rotation?
No
Replace fuse.
PN: 3801-519
Does control board
No
click when powered up?
Immediately How fast? 45 Sec.
Yes
Yes check between the brown/black
Could be wire or
safety switch issue.
Replace
control
board. PN:
3801-541
No
does chair beep?
Yes Engage safety cover
start beeping?
No Does chair
Yes
Why is the chair not working? (3 auto buttons)
aXcs
Section I Chairs
* Contact Tech Service at 1-866-DTE-INFO.
Check for loose prongs on the control
board. Replace board as needed: E3000
with back switches - PN: 3801-411; E3000
w/o back switches and aXcs interface
board - PN: 3801-661; replacement
control board - PN: 3801-541or upgrade
chair to new electronics.*
Are there any wire brakes
Yes from either the base or
back potentiometer to
the control board?
No
Replace potentiometer:
Base: PN: 3801-435
Back: E3000 spiral bar PN: 3801-430; all other
E3000 - PN: 3801-546;
aXcs Chair (3 autos) PN: 3801-662 or upgrade
chair to new electronics.*
If unplugged,
secure plugs.
If switch is bad,
replace switch:
for back switch PN: 3801-444;
Base or Safety PN: 3801-431
FAQ #15
Replace harness:
E3000 with back
switches PN: 3801-438;
E3000 w/o back
switches or
aXcs Chair PN: 3801-570
Are any safety
switches No
Yes
unplugged
or activated?
Yes Reset power. Wait 45 No
sec. to 1 min. Does
chair start beeping?
45 Sec. How soon? Immediately
Check connections
Does the sum of the ohms
on all safety switches
across leads 1 & 2 added
and potentiometers.
Yes Is there continuity from
to the sum of the ohms
brown/black wire at JP7 No
Yes across leads 2 & 3 equal the No
on board to gray wire
reading across leads 1 & 3?
at back potentiometer?
Why is the chair beeping? (old electronics)
aXcs
Technical Manual
Page i-33
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Page i-34
After 45 secs.
Technical Manual
Section I Chairs
Check all connections
for proper placement
and reset chair, then
reprogram soft limits.
No
Does JP7 on control
board have connector Yes
with two brown wires
and a purple wire?
Correct connections,
reset chair and reprogram
soft limits if needed.
No
No
Remove the safety cover,
reset the safety switches
and determine the cause of
the safety cover activation.
Yes
Are the safety
switches activated?
FAQ #39
Place chair in programming
mode for soft limits and
reprogram the soft limits.
Are either of the
No
safety limits activated?
Replace main harness.
PN: 3801-438 (E-3000
with back switches) or
PN: 3801-570
Yes
Replace interface
board. PN: 3801-661
Yes
at JP7 and JP102.
Are the prongs loose?
Check the prongs
Using a volt meter, do a
continuity check between
Yes the brown/black wire at JP7 No
and the gray wire at the
back potentiometer.
Is there continuity?
No on the control board
Contact Technical
Service for electronic
upgrade information.
1-866-DTE-INFO
Connect the wires
properly and reset
the chair.
Replace the potentiometer:
Base - PN: 3801-435;
Back spiral bar type PN: 3801-430;
All others - PN: 3801-546
Does the chair start beeping Immediately
immediately or after 45 seconds?
Does JP102 have a
connector with blue Yes
and yellow wires?
Check the connections on the
protentiometers. Base has orange No
wire up and back should be to the
outside of the chair. Are they
both connected properly?
Using a volt meter, take
Yes an ohms reading across pins No
1 & 3 on both potentiometers.
Is there 5k ohms?
Yes
A
S
F K
R E
E D
Q
U Q
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T T
L I
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Why does the chair beep after installing
a new potentiometer? (E-3000/aXcs)
aXcs
™
Section VII User
Service Information
Chair
J/V-Generation
/ J-Chair /J/V-Generation
V-Chair
Control Valve Speed Adjustment
• Phillips Screwdriver
• Flat-head Screwdriver
• Safety Glasses
1. Raise the chair base to its full UP position.
2. Take off the base (pump) cover by removing
and retaining the four Phillips-head screws
that attach it to the base plate.
NOTE: Adjustable flow control valves, located in the
hydraulic control valve, are used to set the chair function
speeds. The base and back cylinders are single acting
cylinders. They have two flow control valves each (UP
and DOWN) to control their speeds. The seat cylinder
is double acting and requires four flow adjustment
valves. Valves marked (PWR) are for incoming
fluid . Valves marked (RET) are for outgoing
fluid. The (RET) valves are adjusted first to set a
gross speed and the (PWR) valves are used for fine
tuning the speeds. Once the (RET) flows have been set,
they should not be readjusted.
Wear safety glasses while adjusting the valve.
Flow control valves should not be turned out
farther than the top of their heads being even
with the valve body surface. Adjustment of
the flow control valves beyond the valve body
surface may result in oil leakage with uncontrolled motion of the chair and the possibility
of a valve being ejected from the valve body.
a. Move the base up and down adjusting the
flow controls until it takes 12 seconds for
the base to move either up or down the
full travel.
b. Move the back up and down adjusting the
flow controls until it takes 12 seconds for
the back to move either up or down the
full travel.
Function times given are based on a 200-pound person
sitting in the chair.
UP
(RET)
DOWN
(PWR)
CV4
UP
(PWR)
DOWN
(RET)
SEAT
DentalEZ Group
2500 Highway 31 South
Bay Minette, AL 36507
Tools Required:
— WARNING —
CV3
FLOW
INC.
DEC.
UP
DOWN
BACK
UP
DOWN
Hydraulic Valve
28
CV2
CV1
BASE
Installation, Operation and Care Manual
Technical Manual
Section I Chairs
Page i-35
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J/V-Generation
/ J-Chair / V-Chair
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c. Adjust the UP (PWR) and DOWN (PWR)
flow adjustment screws all the way open
(counterclockwise). The valves are open
when the top of the screws are
approximately level with the valve body.
d. Adjust the UP (RET) and DOWN (RET)
flow adjustments all the way closed
(clockwise).
NOTE: With the flow adjustments closed all the way,
the seat may not move at all until the valve is adjusted
open a little.
e. Move the seat up or down while opening
the corresponding (RET) flow
adjustments.
f. Continue adjusting the flows until the seat
moves from its full up and down positions
in about seven seconds both ways.
g. Adjust the UP (PWR) and DOWN (PWR)
flow adjustment screws all the way closed
(clockwise).
h. Move the seat up or down while opening
the corresponding (PWR) flow
adjustments.
i. Continue adjusting the flows until the seat
moves from its full up and down positions
in about nine seconds both ways.
3. Raise the chair base up.
4. Replace the base (pump) cover.
Technical Manual
Page i-36
Section I Chairs
J/V-Generation™ Chair
29
Simplicity
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TURN SCREW COUNTERCLOCKWISE TO INCREASE SPEED/CLOCKWISE TO DECREASE SPEED.
BASE DOWN
BACK DOWN
TV4
TV2
TV6
BASE UP
TV1
TV3
TV5
BACK UP
BACK POWER
BACK RETURN
BASE POWER/RETURN
Technical Manual
Section I Chairs
Page i-37
Silhouette / Advantage / aXcs II
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DOWN
FLOW
BACK
CV2
DEC.
INC.
UP
DOWN
CV1
BASE
Technical Manual
Page i-38
Section I Chairs
DentalEZ Group
2500 Highway 31 South
Bay Minette, AL 36507
UP
Section VII User Service
Information J/V-Generation™ Chair
J/V-Geneneration
Programming Travel Limits
Tools Required:
• Phillips Screwdriver
• Tape Measure
NOTE: The upper and lower travel limit values
specified are factory settings. Values within the ranges
are valid depending on specific applications. Different
travel limit values may be required to achieve adequate
clearance for accessories attached to or near the chair.
NOTE: Any one of the two possible controls con-
nected to the chair can be used to set the travel limits.
— WARNING —
Disconnect the chair power when indicated.
1. Raise the chair base and seat to their full UP
position, and place the chair back in a halfway
position.
2. Disconnect the chair power.
3. If the upholstered seat was installed, take it
off by unsnapping the decorator plastic cover
caps on the back and front of the chair seat
mount casting and removing and retaining the
1/4-20 x 5/8" screws with plastic caps from
the back and front of the chair seat cushion.
4. Take off the base (pump) cover by removing
and retaining the four Phillips-head screws
that attach it to the base plate.
5. On the main control board, flip the #4 DIP
switch to the ON position. (This will place the
chair in its travel limits programming mode
when the chair’s power is reconnected.)
7. Perform the following steps to program the
upper limits:
a. Move the base up until the distance
between the bottom of the chair
mount casting and the top of the
cantilever support casting measures
between 23-1/4" and 23-3/8".
b. Move the back up until the distance between
the edge of the slider block bracket and
the front edge of the slider block
measures between 10" and 10-1/8".
c. Move the seat up until the distance
between the chair mount casting and the
bottom edge of the seat mount casting
measures between 9-1/2" and 9-5/8".
Step 7a
Chair
Mount
Casting
Step 7c
Chair
Mount
Casting
Seat
Mount
#4 DIP Switch
Main Control
Board
Cantilever
Support Casting
Slider Block
Bracket
Step 7b
NOTE: All three LEDs on the board will light up
five times, along with a short beep each time, to indicate
the chair is in its travel limits programming mode.
Slider Block
6. Reconnect the chair power.
26
Installation, Operation and Care Manual
Technical Manual
Section I Chairs
Page i-39
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Section VII User Service
Information
J/V-Geneneration
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d. Press and release the auto #1 button on a
control.
— CAUTION —
Do not press the auto button for more
than one second.
NOTE: A short beep will sound when the button is
pressed, another will sound when the button is released.
The second beep indicates the travel limits have been
stored.
b. Move the back down until the distance
between the edge of the slider block
bracket and the front edge of the slider
block measures between 4" and 4-1/8".
c. Move the seat down until the distance
between the chair mount casting and the
bottom edge of the seat mount casting
measures between 6-1/8" and 6-1/4".
d. Press and release the auto #2 button on a
control.
8. Perform the following steps to program the
lower limits:
a. Move the base down until the distance
between the bottom of the chair mount
casting and the top of the cantilever
support casting measures between 10"
and 10-1/8".
Step 8a
Step 8c
Seat
Mount
Chair
Mount
Casting
— CAUTION —
Do not press the auto button for more
than one second.
NOTE: A short beep will sound when the button is
pressed, another will sound when the button is released.
The second beep indicates the travel limits have been
stored.
9. Disconnect the chair power.
10. Flip the #4 DIP switch back to the OFF
position. (This will place the chair back into
its normal operating mode.)
11. Reconnect the chair power.
Chair
Mount
Casting
NOTE: If a limit was adjusted to accommodate an accessory, make sure the resulting clearance is sufficient.
Cantilever
Support Casting
Step 8b
12. Move each function to their programmed
limits to verify they have been properly set.
(Each function should stop before activating a
limit switch or reaching a physical stop.)
Slider Block
Bracket
Slider Block
13. Replace the pump cover using the four
Phillips-head screws previously removed.
14. Replace the seat using the four 1/4-20 x 5/8"
screws with plastic caps previously removed.
15. Reprogram the auto positions.
Technical Manual
Page i-40
Section I Chairs
J/V-Generation™ Chair
27
J-3 Chair
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Technical Manual
Section I Chairs
Page i-41
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J-3 Chair
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Technical Manual
Page i-42
Section I Chairs
Section VII User Service Information
Simplicity
Programming Travel Limits
Tools Required
• Phillips Screwdriver
• Tape Measure
1. Remove the four Philllips-head screws on the
pump cover.
Pump
Cover
NOTE: When DIP switches #1 and #2 are in the
ON position, the chair will not operate unless the M
(memory) button is held down.
4. While holding the M button, located at the
rear of the chair, use the foot control to
make sure the base is moved all the way down
and the chair back is all the way down.
5. While holding the M button, run the chair to
the maximum height, then come down until
22" measures from the flat part of the floor
plate to the bottom of the arm casting. When
in this position, release the M button. Push
and release the M button and press the 0
button on the foot control. (Base up is now set.)
NOTE: Three beeps confirm the setting is correct and
six beeps represent failure to set the soft limit.
Phillips-head
Screws (4)
2. Unplug the LED light harness and set the
pump cover aside.
Arm
Casting
Bottom
Chair Base
LED Light
Harness
3. On the main control board, turn the DIP
switches #1 and #2 to the ON position (to
the right).
Main
Control Board
#1& #2 DIP
Switches
Technical Manual
Section I Chairs
Simplicity by DentalEZTM Chair 13
Page i-43
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Section VII User Service Simplicity
Info.
P
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6. Hold down the M button and run the chair
base all the way down then come up until 12"
measures from the flat part of the floor plate
to the bottom of the arm casting. When in
this position, release the M button. Push and
release the M button and press the I button
on the foot control. (Base down is now set.)
T
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Simplicity by DentalEZ™ Chair
8. Hold down the M button and run the chair
back all the way down then come back up
until 8.5" measures between the back cylinder
and the block. When in this position, release
the M button. Push and release the M button
and press the III button on the foot control.
(Back down is now set.)
Arm
Casting
Bottom
Back Cylinder
Block
Chair Base
7. Hold down the M button and run the chair
back all the way up then come back down
until 1.75" measures between the back
cylinder and the back block. When in this
position, release the M button. Push and
release the M button and press the II button
on the foot control. (Back up is now set.)
9. Programming the chair is now complete.
Place the #1 and #2 DIP switches back into
the original position. Reattach the light
harness and reinstall the pump cover using
four Phillips-head screws.
Service Instruction
If the area of concern is not addressed in this
manual, contact your local DentalEZ full-service
dealership. Please have the following product information available:
Back Cylinder
• Model Name
Block
• Model Number
(found on the seat mount casting )
• Serial Number
• Date of Installation
14
Installation, Operation and Care Manual
Page i-44
Technical Manual
Section I Chairs
Silhouette® Chair
Section VII User Service Information
Silhouette
Programming Travel Limits
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Right Guide Rail
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Installation, Operation and Care Manual
Technical Manual
Section I Chairs
Page i-45
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Section VII User Service Silhouette
Information
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Technical Manual
Page i-46
Section I Chairs
Silhouette® Chair
23
Section VII User Service Information
Advantage
Programming Travel Limits
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Right Guide Rail
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Technical Manual
Section I Chairs
Advantage by DentalEZ™ Chair 21
Page i-47
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Advantage by DentalEZ™ Chair
Section VII User Service Advantage
Info.
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Installation, Operation and Care Manual
Page i-48
Technical Manual
Section I Chairs
�� Chair
Section VII User Service Information
aXcs II
Programming Travel Limits
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Installation, Operation and Care Manual
Technical Manual
Section I Chairs
Page i-49
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aXcs II
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Technical Manual
Page i-50
Section I Chairs
aXcs® Chair
23
Section VIII Parts List J/V-Generation J/V-Generation™ Chair
Controls
Part/Kit Name
Hydraulic
Part/Kit No.
Delivery Head Touch Pad Option
Touch Pad Assembly
Touch Pad Membrane Switch
Touch Pad Circuit Board
Foot Control Option
Back and Foot Control Circuit Board
Foot Control Cord
Light Relay Option (115 VAC)
Light Relay Option (220 VAC)
Light Relay Option (24 VAC for power module)
Handpiece Safety Switch Option
3658-384
3517-140
3801-986
3801-761
3625-548
3801-763
3801-764
3625-549
3625-591
3625-596
3625-562
Electrical
Part/Kit Name
Part/Kit No.
Master Circuit Board (115 VAC)
Master Circuit Board (220 VAC)
Fuses (115 VAC)
Fuses (220 VAC)
Main Wiring Harness
Power Cord (115 VAC)
Power Cord (220 VAC)
Pump Motor Capacitor (115 VAC)
Pump Motor Capacitor (220 VAC)
Valve Solenoid (115 VAC)
Valve Solenoid (220 VAC)
Base Potentiometer
Limit Switch (all)
Seat Potentiometer
Back Potentiometer
Touchpad Wiring
Touchpad Control Wiring
Light Receptacle Option
3801-765
3801-788
3801-766
3801-767
3801-768
3801-769
3801-770
3801-409
3801-410
3801-424
3801-425
3801-435
3801-431
3801-771
3801-819
3802-048
3802-047
3625-495
Exterior Components
Part/Kit Name
Brake Cover
Brake Handle
Top Cantilever Cover
Bottom Cantilever Cover
Seat Casting Cover
Pump (Base) Cover
Top Cantilever Cover (Magellan Cuspidor)
Bottom Cantilever Cover (Magellan Cuspidor)
Chair Pivot Cover (Magellan Cuspidor)
30
Part/Kit No.
3802-050
3801-803
3801-787
3801-756
3802-051
3802-052
3802-054
3802-053
3802-055
Part/Kit Name
Pump (115 VAC)
Pump (220 VAC)
Valve (115 VAC)
Valve (220 VAC)
Fluid Reservoir
Base Cylinder
Seat Cylinder
Back Cylinder
Hose (pump to valve)
Hose (base cylinder)
Hose (back and seat up)
Hose (seat down)
Base and Back Cylinder Vent Tubing
Pump and Reservoir Tubing
Hydraulic Oil (one pint)
Part/Kit No.
3801-774
3801-775
3801-776
3801-777
3801-778
3801-429
3801-783
3802-049
3801-780
3801-784
3801-781
3801-782
3801-418
3801-417
3801-549
Mechanical
Part/Kit Name
Arm Screw
Control Sleeve
Seat Pivot Pins
Spring
Back and Seat Potentiometer Actuator
Air Glide Caster
Air Glide Regulator
Air Glide Toggle Switch
Part/Kit No.
3800-112
3800-113
3801-772
3801-445
3801-773
3801-680
3801-791
3801-792
Upholstery
Part/Kit Name
Part/Kit No.
Plush Back Cushion
Plush Arm Cushion
Plush Seat Cushion
Ultra Back Cushion
Ultra Arm Cushion
Ultra Seat Cushion
Dual Durometer Headrest
Standard Back Cushion
Standard Arm Cushion
Standard Seat Cushion
Seat Lower Cover
Standard Headrest Cushion
Standard Headrest Magnetic Cushion
Double Articulating Headrest Cushion (optional)
Sling Set
Back Blind Grip Fasteners
3802-036
3802-037
3802-038
3802-039
3802-040
3802-041
3802-042
3802-019
3802-043
3802-044
3802-046
3801-827
3801-826
3801-535
3802-045
3801-742
Installation, Operation and Care Manual
Technical Manual
Section I Chairs
Page i-51
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Seat Cyliner Assembly
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Bracket Assembly
Cover Switch
4
1
2
3
5
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Seat Cylinder Assembly/Back
#
1
2
3
4
5
6
Part/Kit Name
Back/Seat C yli nder
Back/Seat Potenti ometer
Safety Li mi t Swi tch
Potenti ometer Actuator
Support Assembly, RH
Support Assembly, LH
Part/Kit No.
3801-783
3801-771
3801-431
3801-773
3638-233
3638-232
Technical Manual
Page i-52
Section I Chairs
J/V-Generation
6
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I
S
T
S
8
1
4
3
2
Covers
#
1
2
3
4
5
6
7
8
Part/Kit Name
Pump Cover
Lower C anti lever Cover
Upper Cantilever Cover
Brake Cover
Mai n Extensi on Spri ng
Back Membrane Potenti ometer
Li mi t Switch
Back Cyli nder
Part/Kit No.
3802-052
3801-756*
3801-787**
3802-050
3801-445
3801-819
3801-444
3802-049
* Use kit 3802-053 for chair with Magellan.
** Use kit 3802-054 for chair with Magellan.
Technical Manual
Section I Chairs
Page i-53
J/V-Generation
p
A
R
T
S
1
9
5
3
14
2
2
1
13
12
10
11
M
A
OUT
IN
3
U14
P.N. 2679-497
L
I
S
T
S
Chassis Assembly
115 V Power Unit
8A
125V
1A
250V
(Power cord wiring not
shown for clarity.)
4a 4b
7
8
6
1
14
13
25
7 9 10 12
JP4
1 3 4 6
JP5
JP3
Chassis Assembly
JP2
JP1
(Umbilical bracket and power
cord not shown for clarity.)
#
1
2
3
4a
4b
5
6
7
8
9
10
11
12
13
14
Part/K it N ame
Hydrauli c Valve, 115 VAC
Solenoi d Coil
Pump, 115 VAC
Capaci tor, 45 uf
Capaci tor, 50 uf
Hydrauli c Reservoi r
Master PCB, 115 VAC
Mai n Wiri rng Harness
Power Cord, 115 VAC
Tuubing, clear PVC , 15', 3/8"
Hydrauli c Pump Hose
Seat Down Hydrauli c Hose
Back & Seat Up Hydrauli c Hose
Base Hydauli c Hose
Hydrauli c Oil
Technical Manual
Page i-54
Section I Chairs
Part/Kit No.
3801-776
3801-424
3801-774
3801-897
3801-410
3801-778
3801-765
3801-768
3801-769
3801-417
3801-780
3801-782
3801-781
3801-784
3801-549
J/V-Generation
p
A
R
T
S
L
I
S
T
S
5
1
3
6
7
2
4
Bottom View
(Base and cantilever mount not shown.)
Mechanical
#
1
2
3
4
5
6
7
Part/Kit Name
Brake Handle, 1/2" shaft
Li ft Cyyli nder
Potenti ometer/Pi ni on Gear
Tubi ng, clear, 15', 1/4"
Li nk Retro Ki t
Air Gli de Regulator
Air Gli de Toggle Valve
Part/Kit No.
3801-803
3801-429
3801-435
3801-418
3802-059
3801-791*
3801-792*
* Only chairs with air glide.
Technical Manual
Section I Chairs
Page i-55
J-Chair/V-Chair
p
A
R
T
S
L
I
S
T
S
Part/K it N ame
Part/K it N o.
Upholstery Set, J-3, (col or speci fi ed when
orderi ng chai r and i ncl udes i tem s m arked w/*)
Headrest*
Neck Support or
C atcher's Mi tt
Back C ushi on*
Arm Sli ng (two per ki t)*
Left Armrest C ushi on, 15"*
Ri ght Armrest C ushi on, 15"*
D ri ven Arm C over Plate (15" armrest)*
D ri ven Arm C over Plate (16" armrest)
Floati ng Arm C over Plate (15" armrest)*
Floati ng Arm C over Plate (16"armrest)
Seat C ushi on*
Seat Mounti ng Hardware*
Seat Toe Guard*
Seat Lower C over*
Back Bli nd Gri p Fasteners
3625-587
3801-740
3801-826
3801-876
3801-743
3801-744
3801-746
3801-938
3801-749
3801-939
3801-750
3801-751
3801-752
3801-753
3801-754
3801-742
Part/K it N ame
Part/K it N o.
Upholstery Set, V-C hai r, (col or speci fi ed when
orderi ng chai r and i ncl udes i tem s m arked w/*)
Back C ushi on*
Arm Sli ng (two per ki t)*
Left Armrest C ushi on*
Ri ght Armrest C ushi on*
D ri ven Arm C over Plate*
Floati ng Arm C over Plate*
Seat C ushi on*
Seat Mounti ng Hardware*
Seat Toe Guard*
Seat Lower C over*
Standard Headrest C ushi on*
Standard Headrest Magneti c C ushi on*
D ouble Arti culati ng Headrest C ushi on* (opti on.)
Surgi cal Sli ngs (two per ki t)* (opti onal )
Back Bli nd Gri p Fasteners
Part/K it N ame
Master C i rcui t Board (115 VAC )
Master C i rcui t Board (220 VAC )
Fuses (115 VAC )
Fuses (220 VAC )
Mai n Wi ri ng Harness
Power C ord (115 VAC )
Power C ord (220 VAC )
Pump Motor C apaci tor (115 VAC )
Pump Motor C apaci tor (220 VAC )
Valve Solenoi d (115 VAC )
Valve Solenoi d (220 VAC )
Base Potenti ometer
Li mi t Swi tch (all)
Back and Seat Potenti ometer
Back Swi tch Wi ri ng Harness
Back C ontrol C able
Li ght Receptacle Opti on
3625-604
3801-912
3801-743
3801-744
3801-746
3801-749
3801-750
3801-751
3801-752
3801-753
3801-754
3801-827
3801-826
3801-535
3625-611
3801-742
Part/K it N o.
3801-765
3801-788
3801-766
3801-767
3801-768
3801-769
3801-770
3801-409
3801-410
3801-424
3801-425
3801-435
3801-431
3801-771
3801-915
3801-853
3625-495
Part/K it N ame
J-3 Ri ght Back Swi tch
J-3 Left Back Swi tch
V-C hai r Ri ght Back Swi tch
V-C hai r Left Back Swi tch
D eli very Head Touch Pad Opti on
Touch Pad Assembly
Touch Pad Membrane Swi tch
Rear Assi stant's Arm Membrane Swi tch
Touch Pad C i rcui t Board
Foot C ontrol Opti on
Back and Foot C ontrol C i rcui t Board
Foot C ontrol C ord
Li ght Relay Opti on (115 VAC )
Li ght Relay Opti on (220 VAC )
Li ght Relay Opti on (24 VAC for power module)
Handpi ece Safety Swi tch Opti on
Part/K it N ame
Arm Screw
C ontrol Sleeve
Seat Pi vot Pi ns
Spri ng
Back and Seat Potenti ometer Actuator
Ai r Gli de C aster
Ai r Gli de Regulator
Ai r Gli de Toggle Swi tch
Part/K it N ame
Pump (115 VAC )
Pump (220 VAC )
Valve (115 VAC )
Valve (220 VAC )
Flui d Reservoi r
Base C yli nder
Back and Seat C yli nder
Hose (pump to valve)
Hose (base cyli nder)
Hose (back and seat up)
Hose (seat down)
Base and Back C yli nder Vent Tubi ng
Pump and Reservoi r Tubi ng
Hydrauli c Oi l (one pi nt)
Part/K it N ame
Left Arm
Ri ght Arm
D ri ve Arm
Brake C over
Brake Handle
Top Base C over
Bottom Base C over
Front C over Assembly
Pump C over
Technical Manual
Page i-56
Section I Chairs
Part/K it N o.
3801-894
3801-895
3801-913
3801-914
3625-561
3801-759
3801-760
3801-790
3801-761
3625-548
3801-763
3801-764
3625-549
3625-591
3625-596
3625-562
Part/K it N o.
3800-112
3800-113
3801-772
3801-445
3801-773
3801-680
3801-791
3801-792
Part/K it N o.
3801-774
3801-775
3801-776
3801-777
3801-778
3801-429
3801-783
3801-780
3801-784
3801-781
3801-782
3801-418
3801-417
3801-549
Part/K it N o.
3801-745
3801-747
3801-748
3801-755
3801-803
3801-787
3801-756
3801-793
3801-737
J-3 Chair
p
A
R
T
S
Seat Cylinder
Assembly
3
Bracket Assembly,
Cover Switch
L
I
S
T
S
4
1
2
3
Back Cylinder
Assembly
3
4
5
2
1
Back/Seat Cylinder Assembly
#
1
2
3
4
5
Part/Kit Name
Back/Seat C yli nder
Back/Seat Potenti ometer
Safety Li mi t Swi tch
Potenti ometer Actuator
Vent Li ne & Fi tti ngs
Part/Kit No.
3801-783
3801-771
3801-431
3801-773
3802-110
Technical Manual
Section I Chairs
Page i-57
J-3 Chair
p
A
R
T
S
L
I
S
T
S
4
1
3
2
7
6
5
Covers
#
1
2
3
4
5
6
7
Part/Kit Name
Pump Cover
Lower C anti lever Cover
Upper Cantilever Cover
Brake Cover
Mai n Extensi on Spri ng
Front Cover Assembly
Dri ve Arm
Part/Kit No.
3801-737
3801-756
3801-787
3801-755
3801-445
3801-793
3801-748
Technical Manual
Page i-58
Section I Chairs
J-3 Chair
p
A
R
T
S
8
L
I
S
T
S
7
1
2
9
6
5
4
3
Back Assembly
#
1
2
3
4
5
6
7
8
9
Part/K it Name
Conntrol Sleeve
Right Arm
Left Arm
Arm Screw
Back Control Cable
Back & Foot Control, PCB
Back Swi tch Wiri ng
Right Back Switch
Left Back Switch
Part/Kit N o.
3800-113
3801-747
3801-745
3800-112
3801-853
3801-763
3801-915
3801-894
3801-895
Technical Manual
Section I Chairs
Page i-59
J-3 Chair
Chassis Assembly
115 V Power Unit
9
5
3
14
2
1
2
13
12
10
11
M
A
OUT
IN
3
U14
P.N. 2679-497
L
I
S
T
S
1
p
A
R
T
S
8A
125V
1A
250V
(Power cord wiring not
shown for clarity.)
4a 4b
7
8
6
1
14
13
25
7 9 10 12
JP4
1 3 4 6
JP5
JP3
Chassis Assembly
JP2
JP1
(Umbilical bracket and power
cord not shown for clarity.)
#
1
2
3
4a
4b
5
6
7
8
9
10
11
12
13
14
Part/K it N ame
Hydrauli c Valve, 115 VAC
Solenoi d Coil
Pump, 115 VAC
Capaci tor, 45 uf
Capaci tor, 50 uf
Hydrauli c Reservoi r
Master PCB, 115 VAC
Mai n Wiri rng Harness
Power Cord, 115 VAC
Tuubing, clear PVC , 15', 3/8"
Hydrauli c Pump Hose
Seat Down Hydrauli c Hose
Back & Seat Up Hydrauli c Hose
Base Hydauli c Hose
Hydrauli c Oil
Technical Manual
Page i-60
Section I Chairs
Part/Kit No.
3801-776
3801-424
3801-774
3801-897
3801-410
3801-778
3801-765
3801-768
3801-769
3801-417
3801-780
3801-782
3801-781
3801-784
3801-549
J-3 Chair
p
A
R
T
S
L
I
S
T
S
1
3
5
6
2
4
Bottom View
(Base and cantilever mount not shown.)
Mechanical
#
1
2
3
4
5
6
Part/Kit Name
Brake Handle, 1/2" shaft
Li ft Cyyli nder
Potenti ometer/Pi ni on Gear
Tubi ng, clear, 15', 1/4"
Air Gli de Regulator
Air Gli de Toggle Valve
Part/Kit No.
3801-803
3801-429
3801-435
3801-418
3801-791*
3801-792*
* Only chairs with air glide.
Technical Manual
Section I Chairs
Page i-61
Simplicity
p
A
R
T
S
1
L
I
S
T
S
2
3
4
5
Back Pins
(not shown)
15
Toe Cover
(not shown)
6
7
8
9
10
13 14
11
12
Exterior Components
#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Technical Manual
Page i-62
Section I Chairs
Part/Kit Name
Part/Kit No.
Arm Mechani sm
3802-246
Arm Support, C hrome, Right
3802-277
Arm Support, C hrome, Left
3802-278
Chai r Back
3802-285
Back Pi ns
3802-285
Seat Frame
3802-286
Rear C over
3802-300
Chai r Rollers
3802-284
Lower C anti lever Cover
3802-299
Upper Cantilever Cover
3802-298
Harness, LED Indi cator
3802-256
Brake Pedal
3802-279
Pump Cover
3802-301
Pump Cover, Magellan
3802-302
Toe Cover
3802-046
Simplicity
1
2
p
A
R
T
S
3
5
L
I
S
T
S
4a 4b
To Base
Potentiometer
6
To Back
Potentiometer
11
Touchpad Control (not shown)
12
Foot Control (not shown)
To Microswitch
7
To PCB
8
To PCB
9
To PCB
10
Memory button to PCB (not shown)
Electrical
#
1
2
3
4a
4b
5
6
7
8
9
10
11
12
Part/Kit Name
Membrane Potenti ometer
Master PCB, 115V
Master PCB, 220V
Fuses, 115V
Fuses, 220V
Pivot Bolts
Chai r Base Potenti ometer
Harness, Base Pot. to PCB
Harness, Back Pot. to PCB
Harness, Mi croswi tch to PCB
Harness, Memory Button to PCB
Touchpad Control
Foot Control
Part/Kit No.
3802-242
3802-296
3802-297
3802-254
3802-255
3802-281
3802-316
3802-310
3802-311
3802-312
3802-313
3802-264
3613-127
Technical Manual
Section I Chairs
Page i-63
Simplicity
p
A
R
T
S
1
L
I
S
T
S
3
2
4
6
5
9
7
8
10 11
Hydraulic
#
1
2
3
4
5
6
7
8
9
10
11
Part/Kit Name
Solenoi d Valve, 115V
Solenoi d Valve, 220V
Back Cyli nder Down Hose
Back Cyli nder
Back Cyli nder Up Hose
Base C yli nder
Chai r Base Potenti ometer
Pump to Valve Hose
Oi l Tank
Pump Assembly, 115V
Pump Assembly, 220V
Part/Kit No.
3802-287
3802-288
3802-295
3802-275
3802-295
3802-281
3802-316
3802-292
3802-289
3802-290
3802-291
Technical Manual
Page i-64
Section I Chairs
Silhouette® Chair
Section VIII Parts List Silhouette
Upholstery and Exterior Components
Electrical
3625-647 Upholstery set (color & headrest specified when
3801-765
3801-788
3801-766
3801-767
3801-779
3801-769
3801-770
3801-409
3801-410
3801-424
3801-425
3801-435
3801-431
3801-444
3801-819
ordering)
3801-827
3801-826
3801-535
3802-019
3801-742
3802-020
3801-566
3801-443
3801-569
3801-447
3801-568
3801-825
3801-803
3801-787
3801-756
3801-737
3801-563
Stationary headrest cushion
Magnetic headrest cushion
Double articulating headrest cushion
Back cushion
Back blind grip fasteners
Upholstered arm assembly
Seat cushion
Seat mounting pin & retaining ring
Seat rollers and screws
Back link pin and E-rings
Seat toe guard
Brake cover
Brake handle
Top cantilever base cover
Bottom cantilever base cover
Base (pump) cover
Arm hole cap
Controls
3625-573
3625-576
3801-824
3801-820
3801-761
3801-823
3801-762
3625-574
3801-763
3801-764
3625-562
24
Chair mounted touchpad option
Delivery head mounted touchpad option
Touch pad assembly
Touch pad membrane switch (chair &
delivery head mounted)
Touch pad circuit board
Rear assistants arm membrane switch
Chair mounted touch pad wire harness
Foot control option
Foot control circuit board
Foot control cord
Handpiece safety switch option
Master circuit board (115 VAC)
Master circuit board (220 VAC)
Fuses (115 VAC)
Fuses (220 VAC)
Main wiring
Power cord (115 VAC)
Power cord (220 VAC)
Pump motor capacitor (115 VAC)
Pump motor capacitor (220 VAC)
Valve solenoid (115 VAC)
Valve solenoid (220 VAC)
Base potentiometer
Limit switch (base & safety)
Back limit switch
Back potentiometer
Mechanical
3801-445
3801-680
3801-791
3801-792
3801-773
Spring
Air glide caster
Air glide regulator
Air glide toggle switch
Potentiometer actuator
Hydraulic
3801-774
3801-775
3801-821
3801-822
3801-778
3801-429
3801-450
3801-780
3801-784
3801-416
3801-418
3801-417
3801-549
Pump (115 VAC)
Pump (220 VAC)
Valve (115 VAC)
Valve (220 VAC)
Fluid reservoir
Base cylinder
Back cylinder
Hose (pump to valve)
Hose (base cylinder)
Hose (back cylinder)
Base and back cylinder vent tubing
Pump and reservoir tubing
Hydraulic Oil (1 pt.)
Technical Manual
Installation, Operation and Care Manual
Section I Chairs
Page i-65
p
A
R
T
S
L
I
S
T
S
Silhouette
5
p
A
R
T
S
7
6
L
I
S
T
S
9
8
1
4
3
2
Covers
#
1
2
3
4
5
6
7
8
9
Part/Kit Name
Pump Cover
Lower C anti lever Cover
Upper Cantilever Cover
Brake Cover
Mai n Extensi on Spri ng
Back Membrane Potenti ometer
Li mi t Switch
Potenti ometer Actuator
Back Cyli nder
Part/Kit No.
3801-737
3801-756
3801-787
3801-825
3801-445
3801-819
3801-444
3801-773
3801-450
Technical Manual
Page i-66
Section I Chairs
Silhouette
p
A
R
T
S
L
I
S
T
S
6
5
1
7
3
8
2
9
4
BOTTOM VIEW
(Base and cantilever mount not shown.)
Mechanical
#
1
2
3
4
5
6
7
8
9
Part/Kit Name
Brake Handle
Li ft Cyli nder
Potenti ometer/Pi ni on Gear
Polyurethane Tubi ng, Clear, 15', 1/4"
Flange Roller
Back Li nk Pi n
Air Gli de Regulator
Air Gli de Toggle Valve
Air C aster
Part/Kit No.
3801-803
3801-429
3801-435
3801-418
3801-569
3801-447
3801-791*
3801-792*
3801-680*
* Only chairs with air glide.
Technical Manual
Section I Chairs
Page i-67
Silhouette / Advantage / aXcs II
Chassis Assembly
aXcs-2 Power Unit
p
A
R
T
S
14
1a 1b
9
5
12
10
11
M
A
OUT
IN
U14
P.N. 2679-497
L
I
S
T
S
2a 2b
8A
125V
~
3a 3b
1A
250V
4a 4b
13a 13b
(Power cord wiring not
shown for clarity.)
8a 8b
7
6
1
14
13
25
7 9 10 12
JP4
1 3 4 6
JP2
JP5
JP3
JP1
(Umbilical bracket and power
cord not shown for clarity.)
Chassis Assembly
#
1a
1b
2a
2b
3a
3b
4a
4b
5
6
7
8a
8b
9
10
11
12
13 a
13 b
14
Part/Kit Name
Solenoi d Valve Assembly, 115V
Solenoi d Valve Assembly, 220V
Solenoi d C oi l, 115V
Solenoi d C oi l, 220V
Pump, 115V
Pump, 220V
C apaci tor, 45 uf
C apaci tor, 50 uf
Hydrauli c Reservoi r
Master PCB, 115V
Mai n Wi ri rng Harness
Power C ord, 115V
Power C ord, 220V
Tubing, Clear PVC, 15' x 3/8"
Hydrauli c Pump Hose
Hose Assembly, 53-1/2"
Base Hydrauli c Hose
C hai r Fuses, 115V
C hai r Fuses, 220V
Hydrauli c Oi l
Technical Manual
Page i-68
Section I Chairs
Part/Kit N o.
3801-821
3801-822
3801-424
3801-425
3801-774
3801-775
3801-897
3801-410
3801-778
3801-765
3801-779
3801-769
3801-770
3801-417
3801-780
3801-416
3801-784
3801-766
3801-767
3801-549
Section VIII Parts List Advantage
Upholstery and Exterior Components
Electrical
3625-572
3801-765
3801-788
3801-766
3801-767
3801-779
3801-769
3801-770
3801-409
3801-410
3801-424
3801-425
3801-435
3801-431
3801-444
3801-819
3625-495
Upholstery set (color & headrest specified when
ordering)
3801-827
3801-826
3801-535
3801-828
3801-739
3801-742
3801-564
3801-381
3801-566
3801-443
3801-569
3801-447
3801-568
3801-825
3801-803
3801-756
3801-999
3801-563
Stationary headrest cushion
Magnetic headrest cushion
Double articulating headrest cushion
Back cushion
Chair back
Back blind grip fasteners
Upholstered arm assembly
Molded arm assembly
Seat cushion
Seat mounting pin & retaining ring
Seat rollers and screws
Back link pin and E-rings
Seat toe guard
Brake cover
Brake handle
Bottom cantilever base cover
Base (pump) cover
Arm hole cap
Controls
P3625-573
P3625-576
3801-824
3801-820
Chair mounted touchpad option
Delivery head mounted touchpad option
Touch pad assembly
Touch pad membrane switch (chair &
delivery head mounted)
3801-761 Touch pad circuit board
3801-762 Chair mounted touch pad wire harness
P3625-574 Foot control option
3801-763 Foot control circuit board
3801-764 Foot control cord
3625-562 Handpiece safety switch option
Master circuit board (115 VAC)
Master circuit board (220 VAC)
Fuses (115 VAC)
Fuses (220 VAC)
Main wiring
Power cord (115 VAC)
Power cord (220 VAC)
Pump motor capacitor (115 VAC)
Pump motor capacitor (220 VAC)
Valve solenoid (115 VAC)
Valve solenoid (220 VAC)
Base potentiometer
Limit switch (base & safety)
Back limit switch
Back potentiometer
Light receptacle option
p
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Mechanical
3801-445 Spring
3801-773 Potentiometer actuator
Hydraulic
3801-774
3801-775
3801-821
3801-822
3801-778
3801-429
3801-450
3801-780
3801-784
3801-416
3801-418
3801-417
3801-549
Pump (115 VAC)
Pump (220 VAC)
Valve (115 VAC)
Valve (220 VAC)
Fluid reservoir
Base cylinder
Back cylinder
Hose (pump to valve)
Hose (base cylinder)
Hose (back cylinder)
Base and back cylinder vent tubing
Pump and reservoir tubing
Hydraulic Oil (1 pt.)
Technical Manual
Section I Chairs
Advantage by DentalEZ™ Chair 23
Page i-69
Section VIII Parts List
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�� Chair
aXcs II
Upholstery and Exterior Components
Electrical
3625-572 Upholstery set (color & headrest specified when
3801-765
3801-788
3801-766
3801-767
3801-779
3801-769
3801-770
3801-409
3801-410
3801-424
3801-425
3801-435
3801-431
3801-444
3801-819
3625-495
ordering)
3801-827
3801-826
3801-535
3801-828
3801-739
3801-742
3801-564
3801-381
3801-566
3801-443
3801-569
3801-447
3801-568
3801-825
3801-803
3801-787
3801-756
3801-737
3801-563
Stationary headrest cushion
Magnetic headrest cushion
Double articulating headrest cushion
Back cushion
Chair back
Back blind grip fasteners
Upholstered arm assembly
Molded arm assembly
Seat cushion
Seat mounting pin & retaining ring
Seat rollers and screws
Back link pin and E-rings
Seat toe guard
Brake cover
Brake handle
Top cantilever base cover
Bottom cantilever base cover
Base (pump) cover
Arm hole cap
Controls
3625-573
3625-576
3801-824
3801-820
3801-761
3801-823
3801-762
3625-574
3801-763
3801-764
3625-562
Chair mounted touchpad option
Delivery head mounted touchpad option
Touch pad assembly
Touch pad membrane switch (chair &
delivery head mounted)
Touch pad circuit board
Rear assistants arm membrane switch
Chair mounted touch pad wire harness
Foot control option
Foot control circuit board
Foot control cord
Handpiece safety switch option
Master circuit board (115 VAC)
Master circuit board (220 VAC)
Fuses (115 VAC)
Fuses (220 VAC)
Main wiring
Power cord (115 VAC)
Power cord (220 VAC)
Pump motor capacitor (115 VAC)
Pump motor capacitor (220 VAC)
Valve solenoid (115 VAC)
Valve solenoid (220 VAC)
Base potentiometer
Limit switch (base & safety)
Back limit switch
Back potentiometer
Light receptacle option
Mechanical
3801-445
3801-680
3801-791
3801-792
3801-773
Spring
Air glide caster
Air glide regulator
Air glide toggle switch
Potentiometer actuator
Hydraulic
3801-774
3801-775
3801-821
3801-822
3801-778
3801-429
3801-450
3801-780
3801-784
3801-416
3801-418
3801-417
3801-549
Technical Manual
24 Installation, Operation and Care Manual
Page i-70
Section I Chairs
Pump (115 VAC)
Pump (220 VAC)
Valve (115 VAC)
Valve (220 VAC)
Fluid reservoir
Base cylinder
Back cylinder
Hose (pump to valve)
Hose (base cylinder)
Hose (back cylinder)
Base and back cylinder vent tubing
Pump and reservoir tubing
Hydraulic Oil (1 pt.)
aXcs II / Advantage
6
11
8
p
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7
L
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10
9
12
5
4
1
3
2
Covers
#
1
2
3
4
5
6
7
8
9
10
11
12
Part/Kit Name
Pump Cover
Lower C anti lever Cover
Upper Cantilever Cover
Brake Cover
Back Cover
Mai n Extensi on Spri ng
Back Membrane Potenti ometer
Li mi t Switch
Potenti ometer Actuator
Back Cyli nder
Arm Support, Left
Arm Support, Ri ght
Part/Kit No.
3801-737
3801-756
3801-787
3801-825
3801-739
3801-445
3801-819
3801-444
3801-773
3801-450
3801-886
3801-887
Technical Manual
Section I Chairs
Page i-71
aXcs II / Advantage
p
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7
6
5
1
3
9
10
8
2
8
4
BOTTOM VIEW
(Base and cantilever mount not shown.)
Mechanical
#
1
2
3
4
5
6
7
8
9
10
11
Part/Kit Name
Brake Handle
Li ft Cyli nder
Potenti ometer/Pi ni on Gear
Vent Li ne & Fi tti ngs
Flange Roller
Hole Cap
Back Li nk Pi n
Safety Li mi t Swi tch
Air Gli de Regulator
Air Gli de Toggle Valve
Air C aster
Part/Kit No.
3801-803
3801-429
3801-435
3802-110
3801-569
3801-563
3801-447
3801-431
3801-791*
3801-792*
3801-680*
* Only chairs with air glide.
Technical Manual
Page i-72
Section I Chairs
11
Section I Chairs
1
2
3
654321
654321
View A-A
13
1
A
25
P4
14
8
1
P3
AC
White
P1
3
16
BASE
UP
SV1
BACK
UP
SV3
SEAT
UP
SV6
SEAT
UP
SV8
RET
BASE
DOWN
SV2
1
2
Green/Yellow
(Ground)
16
8
P2
White
or
PUMP
White/Brown
Chassis
BACK
DOWN
SV4
1
9
1
Red
Yellow
SEAT
DOWN
SV6
P5
SEAT
DOWN
SV7
PWR
CAPACITOR
14
7
P5
DIP SWITCH
ASSEMBLY
MASTER CONTROL BOARD
A
LED
ASSEMBLY
CW
1 2 3
Up
Base Upper
Limit Switch
(LS1)
N.C.
N.C.
Limit
Switch
(LS3)
7
8
9
10
11
12
13
14
3
4
5
1
7
8
9
10
11
12
13
14
3
4
5
1
P3
6
2
1
115V CHAIR
POWER CORD
Black (AC Line Hot)
6
2
1
Brown
(AC Line
Hot)
Green
White
Black
Chassis
Chassis
3
8
5
3
2
7
AUX AC
RELAY
1
2
5
7
CHAIR LIGHT
CONNECTION
Black
1
CHAIR LIGHT
CONNECTION
Green
Yellow
(Safety
Ground)
Blue
(Neutral)
220V CHAIR
POWER CORD 9
Green (Safety Ground)
White
6
N.C.
Auxiliary
Safety
Limit
Handpiece
Switch
(Optional)
(LS7)
(Optional)
N.C.
White (AC Line Neutral)
P3
115 VAC
HOOKUP
White
N.C.
LOWER COVER
220 VAC
HOOKUP
CW
Limit
Switch
(LS2)
BASE CANTILEVER
Black
Base
Potentiometer
4
(P1)
Black
J/V-Generation™ Chair
Wiring Schematic
1
2
3
4
5
6
(Optional)
1
22
7
8
9
10
1
2
3
1 2 3
Shield
1
2
3
4
5
6
1
2
3
4
5
6
9
8
7
6
5
4
3
2
1
Green
Red/Black
White/Black
Black
Gray/Black
Brown/Black
Red/Black
White
Black
Gray/Black
Brown/Black
Black
1
2
3
4
5
6
CHAIR
M WIRING
EXTENSION
Green
Chassis
Green
1 2 3
Up
Black
1
2
3
4
5
6
J1
J3
J4
BACK
CONTROL
BOARD
Back Controls
Seat Mount
Seat Controls
Chair Mount
Safety Switches
Cantilever
Cantilever Base Pivot
Black
R
1
2
3
4
5
6
7
B
Black (Yellow LED)
White (Green LED)
Gray (Seat Up)
White/Black (Seat Down)
White (Auxiliary Relay)
Gray/White (OP A/B)
1 Red/White (Base Up)
2 Blue/White (Base Down)
3 Red (Back Up)
4 Blue (Back Down)
5 Green (Auto #1)
6 Orange (Auto #2)
7 Green/White (Auto #3)
8 Orange/White (Auto #4)
9 Black (Ground)
A
Seat Upper
Limit Switch
(LS5)
Seat Lower
Limit Switch
(LS6)
SEAT
Drain Wire
Red
White
Black
Green
Orange
Seat
Potentiometer
(P3)
N.C.
2
1
15
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
16
L
= White
= Clear
2
16
1
15
P.N. 2662-241B
Black/White
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Connections shown in line for clarity.
Black/White
Ground
All wires are black.
C
Pins 9 through 12 are neutral.
As functions move up, all potentiometer pin #2 voltages increase.
When a relay is not used, a shielded jumper wire is placed in line on the light connection.
When optional switches are not installed, connectors are plugged into each other.
120 & 220 VAC relays connect to the chair light connection.
24 VAC relay connects to the CMU main wire harness through a jumper wire which controls the light common.
International AC connection. Not used in US.
White/Black (Control Signal A)
Gray/Black (Calibration A)
Black (DC Ground)
Red/Black (+12 VDC)
White (Control Signal M)
Gray/Black (Calibration M)
Brown/Black (Operator A/B LED)
Red (+5 VDC)
Yellow/Black
Black (DC Ground)
Red (+5 VDC)
Blue/Black
Black (DC Ground)
Yellow
Blue
Gray
CHAIR
A WIRING
EXTENSION
P4
Red
White
Black
Green
Orange
23
24
25
11
12
13
14
15
16
17
18
19
20
21
4
5
6
White
Black
Red
Green
Yellow
Blue
FOOT
CONROL
A
(Optional)
TOUCH
PAD
CONROL
A
Red/White (Relay)
Brown
Red (+5 VDC)
Orange/Black
Black (DC Ground)
Orange
Purple
Pink
Up
Back Upper
Limit Switch
(LS4)
N.C.
BACK
N.C.
Back
Potentiometer
(P2)
J/V-Generation
W
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Technical Manual
Page i-73
Technical Manual
Section I Chairs
654321
654321
View A-A
13
1
A
25
P4
14
8
1
P3
AC
White
P1
3
16
BASE
UP
SV1
BACK
UP
SV3
SEAT
UP
SV6
SEAT
UP
SV8
RET
BASE
DOWN
SV2
1
2
Green/Yellow
(Ground)
16
8
P2
White
or
PUMP
White/Brown
Chassis
BACK
DOWN
SV4
1
9
1
Red
Yellow
SEAT
DOWN
SV6
P5
SEAT
DOWN
SV7
PWR
CAPACITOR
14
7
P5
DIP SWITCH
ASSEMBLY
MASTER CONTROL BOARD
A
LED
ASSEMBLY
1
2
3
CW
1 2 3
Up
Limit
Switch
(LS3)
7
8
9
10
11
12
13
14
3
4
5
1
7
8
9
10
11
12
13
14
3
4
5
1
P3
6
2
1
115V CHAIR
POWER CORD
Black (AC Line Hot)
6
2
1
Brown
(AC Line
Hot)
Green
White
Black
Chassis
Chassis
3
8
5
3
2
7
AUX AC
RELAY
1
2
5
7
CHAIR LIGHT
CONNECTION
Black
1
CHAIR LIGHT
CONNECTION
Green
Yellow
(Safety
Ground)
Blue
(Neutral)
220V CHAIR
POWER CORD 9
Green (Safety Ground)
White
6
N.C.
Auxiliary
Safety
Limit
Handpiece
Switch
(Optional)
(LS7)
(Optional)
N.C.
White (AC Line Neutral)
P3
115 VAC
HOOKUP
White
N.C.
LOWER COVER
Limit
Switch
(LS2)
220 VAC
HOOKUP
CW
N.C.
Base
Potentiometer
4
(P1)
BASE CANTILEVER
Base Upper
Limit Switch
(LS1)
N.C.
Wiring Schematic
J-Chair /V-Chair
Black
™
1
2
3
4
5
6
(Optional)
1
22
7
8
9
10
1
2
3
1 2 3
Up
Shield
1
2
3
4
5
6
1
2
3
4
5
6
9
8
7
6
5
4
3
2
1
Green
Red/Black
White/Black
Black
Gray/Black
Brown/Black
Red/Black
White
Black
Gray/Black
Brown/Black
Black
Back Upper
Limit Switch
(LS4)
1
2
3
4
5
6
CHAIR
M WIRING
EXTENSION
Green
Chassis
Green
1 2 3
Up
Black
1
2
3
4
5
6
Back Controls
Seat Mount
Seat Controls
Chair Mount
J3
J4
BACK
CONTROL
BOARD
J1
Safety Switches
Cantilever
Cantilever Base Pivot
Black
B
1
7
1
1
Red/White (Base Up)
Blue/White (Base Down)
Red (Back Up)
Blue (Back Down)
Green (Auto #1)
Orange (Auto #2)
Green/White (Auto #3)
Orange/White (Auto #4)
Black (Ground)
Gray (Seat Up)
White/Black (Seat Down)
White (Auxiliary Relay)
Gray/White (OP A/B)
Black/White (Shield Ground)
Black (Yellow LED)
White (Green LED)
1
2
3
4
5
6
7
B
= White
= Clear
Green
P.N. 2662-263A
B
4
3
2
1
A
7
1
7
B
J-Chair
LEFT
SWITCH
A
4
1
7
1
7
7
3
4
A
3
2
1
Red/White (Base Up)
Blue/White (Base Down)
Red (Back Up)
Blue (Back Down)
Green (Auto #1)
Orange (Auto #2)
Green/White (Auto #3)
Orange/White (Auto #4)
Black (Ground)
Gray (Seat Up)
White/Black (Seat Down)
J-Chair
White (Auxiliary Relay)
Gray/White (OP A/B)
RIGHT
Black/White (Shield Ground)
SWITCH
A
4
3
1
2
1
7
1
2
1
2
3
4
5
6
7
8
9
Seat Upper
Limit Switch
(LS5)
Seat Lower
Limit Switch
(LS6)
SEAT
Drain Wire
Red
White
Black
Green
Orange
Seat
Potentiometer
(P3)
7
V-Chair
LEFT
SWITCH
1
Connections shown in line for clarity.
Green
Yellow
Yellow
All wires are black.
Pins 9 through 12 are neutral.
Red
As functions move up, all potentiometer pin #2 voltages increase.
When a relay is not used, a shielded jumper wire is placed in line on the light connection.
When optional switches are not installed, connectors are plugged into each other.
120 & 220 VAC relays connect to the chair light connection.
24 VAC relay connects to the CMU main wire harness through a jumper wire which controls the light common.
International AC connection. Not used in US.
White/Black (Control Signal A)
Gray/Black (Calibration A)
Black (DC Ground)
Red/Black (+12 VDC)
White (Control Signal M)
Gray/Black (Calibration M)
Brown/Black (Operator A/B LED)
Red (+5 VDC)
Yellow/Black
Black (DC Ground)
Red (+5 VDC)
Blue/Black
Black (DC Ground)
Yellow
Blue
Gray
CHAIR
A WIRING
EXTENSION
P4
Red
White
Black
Green
Orange
23
24
25
11
12
13
14
15
16
17
18
19
20
21
4
5
6
White
Black
Red
Green
Yellow
Blue
FOOT
CONROL
A
(Optional)
TOUCH
PAD
CONROL
A
Red/White (Relay)
Brown
Red (+5 VDC)
Orange/Black
Black (DC Ground)
Orange
Purple
Pink
BACK
Back
Potentiometer
(P2)
N.C.
®
Black
N.C.
Page i-74
N.C.
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V-Chair
RIGHT
SWITCH
J-Chair / V-Chair
Section I Chairs
Safety Bail
Limit Swts
BASE
UP
BASE
DOWN
BACK
UP
BACK
DOWN
BASE
Potentiometer
Sensor(5K)
3
3
2
2
2
1
1
P
3
5 VDC
5 VDC
4
(Prog.)
1
VALVE
(Water)
VALVE
CONTROL
CIRCUIT
1
2
SAFE
AN10
TO
Cuspidor
Switch
SW
+
2
1
2
3900H
AN9
Test
AN
1
3
VALVE
(Air)
2
+
4
5
6
3
4
5
6
AN2 Pendant 2
3
7
7
4
1
5
6
3
4
2
3
5
6
AN5 Pendant 5
3
BACK POT.
AN6
1 2
1 2
AN4 Pendant 4
8
8
9
9
9
9
9
1
2
1
1
1
2
2
2
Switch
4
Limit4
AN15
1
Cleanout
3
3
2
1
3 CN8
Cuspidor
2
TO
AN8
1
AN14
Limit3
LED
PILOT
LIGHT
REY6
(Air)
1
Switch
BUZ
CAPACITOR
50MFD
250 VAC
CN7
PILOT
2 LIGHT
CN6
2 POWER
LIGHT
1
AN13
1
2
Limit2
AN12
2
Limit1
TO
VALVE
(Water)
CUSPIDOR
CONTROL
CIRCUIT
3
UP/DOWN POT.
AN7
7
7
8
8
8
(Foot Control)
AN3 Pendant 3
1 2 3 4 5 6 7
1 2
1 2
AN1 Pendant 1
TO
CN8
3 4
TO
Cleanout
Switch
AN8
ON
BACK
Potentiometer
Sensor(5K)
1
P
4
1 2
Safety Bail
Limit Swts
TO PENDANT
P.C. SCHEMATICS
CONNECTORS REFER
(AN1 THRU AN5)
FOR PENDANT
Foot Control
3
AUX
2
CN5
1
HYDRAULIC
MOTOR
PUMP
OUTPUT
LED
PUMP
REY5
115 VAC
PUMP
MOTOR
CN4
1
2
TO
AN9
LED
BASE
DOWN
REY3
5
4
3
2
1
Switch
MODE:3900H(Close)
CONTROL
CIRCUIT
LED
BASE
UP
REY4
3
2
1
UP
BASE
DOWN
CN3
BASE
Pilot Led
12 VDC
UP
BACK
DOWN
T1
Transformer
LED
BACK
UP
REY2
5
4
3
2
1
CN2
Power Led
5V DC
BACK
38H and 39H Dental Chair 115V
4
3
2
1
M
CN1
Power Input
Line Fuse
115VAC:
125VAC 10A
Main P.C.
Board
F3
Transformer P.C.Fuse
115VAC:
125VAC 63mA M
F2
M
SUPPLY VOLTAGE
115V AC 60HZ
FDC 3800H PC BOARD
LED
BACK
DOWN
REY1
Neutral Fuse
115VAC:
125VAC 10A
F1
Circuit Diagrams, cont’d
Simplicity
115V
W
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Technical Manual
Page i-75
23
Section I Chairs
Safety Bail
Limit Swts
Technical Manual
BASE
UP
BASE
DOWN
BACK
UP
BACK
DOWN
3
2
2
2
1
1
P
P
3
3
5 VDC
5 VDC
4
4
(Prog.)
1
VALVE
(Water)
VALVE
CONTROL
CIRCUIT
1
2
SAFE
AN10
TO
Cuspidor
Switch
SW
1 2
BASE
Potentiometer
Sensor(5K)
3
1
2
2
1
2
3900H
AN9
Test
AN
1
3
VALVE
(Air)
2
+
4
5
6
3
4
5
6
AN2 Pendant 2
3
7
7
4
1
5
6
3
4
2
3
5
6
AN5 Pendant 5
3
AN4 Pendant 4
BACK POT.
AN6
1 2
1 2
8
8
9
9
9
9
9
1
2
1
1
1
2
2
3
2
Switch
4
Limit4
AN15
1
Cleanout
3
1
2
3 CN8
Cuspidor
2
TO
AN8
1
AN14
Limit3
LED
PILOT
LIGHT
REY6
(Air)
1
Switch
BUZ
CAPACITOR
50MFD
250 VAC
CN7
PILOT
2 LIGHT
CN6
2 POWER
LIGHT
1
AN13
1
2
Limit2
AN12
2
Limit1
TO
VALVE
(Water)
CUSPIDOR
CONTROL
CIRCUIT
3
UP/DOWN POT.
AN7
7
7
8
8
8
(Foot Control)
AN3 Pendant 3
1 2 3 4 5 6 7
1 2
1 2
AN1 Pendant 1
TO
CN8
3 4
TO
Cleanout
Switch
AN8
ON
BACK
Potentiometer
Sensor(5K)
Limit Swts
Safety Bail
TO PENDANT
P.C. SCHEMATICS
CONNECTORS REFER
FOR PENDANT
(AN1 THRU AN5)
Foot Control
1
+
HYDRAULIC
MOTOR
PUMP
AUX
Pilot Led
12 VDC
CN5
Power Led
5V DC
OUTPUT
LED
PUMP
REY5
230 VAC
PUMP
MOTOR
CN4
1
2
TO
AN9
LED
BASE
DOWN
REY3
5
4
3
2
1
Switch
MODE:3900H(Close)
CONTROL
CIRCUIT
LED
BASE
UP
REY4
3
2
1
UP
BASE
DOWN
CN3
BASE
Page i-76
UP
BACK
DOWN
T1
Transformer
LED
BACK
UP
REY2
5
4
3
2
1
CN2
4
3
2
Line Fuse
230VAC:
250VAC 6.3 A M
Main P.C.
Board
F3
Transformer P.C.Fuse
230VAC:
250VAC 32mA M
F2
FDC 3800H PC BOARD
LED
BACK
DOWN
REY1
Neutral Fuse
230VAC:
250VAC 6.3A M
F1
CN1
Power Input
1
SUPPLY VOLTAGE
230V AC 50HZ
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38H and 39H Dental Chair 230V
Circuit Diagrams, cont’d
Simplicity
230V
24
6
1
13
1
A
1
25
P4
14
1
P3
Section I Chairs
Red
2
1
Limit
Switch
(LS2)
As functions move up, all potentiometer pin #2 voltages increase.
When a relay is not used, a shielded jumper wire is placed in line on the light connection.
When optional switches are not installed, connectors are plugged into each other.
120 & 220 VAC relays connect to the chair light connection.
24 VAC relay connects to the CMU main wire harness through a jumper wire which controls the light common.
5
6
7
8
Green
Chassis
White
Green (Safety Ground)
Black
White (AC Line Neutral)
Black (AC Line Hot)
Aux
Safety
Limit
Hand Piece
Switch
(Optional)
(LS7)
(Optional)
Pins 9 through 12 are neutral.
6
2
1
Limit
Switch
(LS3)
4
12
13
14
11
10
9
7
8
4
5
3
P3
6
5
3
Aux AC
Relay
2
1
Light
Connection
8
7
White
Black
Red
Green
Yellow
Blue
Foot
Control
A
1
Touch
Pad
Control
A 6
Relay
(Optional)
Red/White
Black (DC Ground)
6
5
4
25
24
23
21
20
19
18
17
16
15
14
13
12
11
Orange/Black
Purple
Black
Red (+5 VDC)
Brown
Pink
Purple
Orange
Red
Orange/Black
115 VAC Hookup
3
CW
3
1
N.C.
Base Upper
Limit Switch
(LS1)
1
CW
N.C.
All wires are black.
1
2
Chassis
Pump
Ground
Green/Yellow
16
UP
N.C.
Connections shown in line for clarity.
P5
Base
Down
SV2
Back
Down
SV4
Ret
P5
Base
Potentiometer
(P1)
4
Base Cantilever
N.C.
2
3
12
Base
Up
SV1
Back
Up
SV3
Pwr
Yellow
Capacitor
AC
White
P1
P2
Black
1
14
1
1
DIP Switch
Assembly
Master Control Board
A
6
N.C.
View A--A
Black
1
22
10
9
8
7
3
2
1
Green
Red
Clear
Black
Green
Shield
3
2
1
1
6
5
4
6
6
Green
Red
Clear
Black
Green
M Wiring
Extension
Shield
5
5
3
Red/Black
White
Black
Gray/Black
Brown/Black
2
Black
4
3
4
2
Back Upper
Limit Switch
(LS4)
3
Green
Red/Black
White/Black
Black
Gray/Black
Brown/Black
1
Back
2
1
6
5
4
3
2
1
Black (DC Ground)
Gray/Black (Calibration A)
White/Black (Control Signal A)
Gray/Black (Calibration M)
Brown/Black (Power On LED)
White (Control Signal M)
Red/Black (+12 VDC)
Black
Black (DC Ground)
Yellow/Black
Red (+5 VDC)
Gray
Blue
Yellow
1
A Wiring
Extension
P4
UP
Back
Potentiometer
(P2)
N.C.
LED
2
Assembly 3
White
Black
Red
Green
Yellow
Blue
Foot
Control
M
Touch
Pad
Control
M
6
1
Chassis
Green
®
PN: 2662-261A
Chair Mount
Safety Switches
Cantilever
Cantilever Base Pivot
Silhouette Chair
Wiring Schematic
Silhouette
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Technical Manual
Page i-77
6
6
1
13
1
A
1
View A--A
25
P4
14
1
P3
Technical Manual
Section I Chairs
P1
Red
2
CW
1
Limit
Switch
(LS2)
3
2
White
Black
Red
Green
Yellow
Blue
When a relay is not used, a shielded jumper wire is placed in line on the light connection.
When optional switches are not installed, connectors are plugged into each other.
120 & 220 VAC relays connect to the chair light connection.
24 VAC relay connects to the CMU main wire harness through a jumper wire which controls the light common.
7
8
Foot
Control
A
1
Relay
(Optional)
Red/White
Touch
Pad
Control
A 6
6
1
Light
Connection
8
7
As functions move up, all potentiometer pin #2 voltages increase.
Green
Chassis
White
Black
Green (Safety Ground)
Black (AC Line Hot)
115 V Chair
Power Cord
Aux
Safety
Limit
Hand Piece
Switch
(Optional)
(LS7)
(Optional)
White (AC Line Neutral)
1
Limit
Switch
(LS3)
5
6
2
Aux AC
Relay
Pins 9 through 12 are neutral.
P3
5
4
13
14
12
11
10
7
8
9
4
5
3
6
Black (DC Ground)
6
5
4
25
24
23
21
20
19
18
17
16
15
14
13
12
11
Orange/Black
Purple
Black
Red (+5VDC)
Brown
Pink
Purple
Orange
Red
Orange/Black
115 VAC Hookup
3
CW
3
1
N.C.
Base Upper
Limit Switch
(LS1)
1
UP
N.C.
All wires are black.
1
2
Chassis
Pump
Ground
Green/Yellow
16
N.C.
Connections shown in line for clarity.
P5
Base
Down
SV2
Back
Down
SV4
Ret
P5
Base
Potentiometer
(P1)
4
Base Cantilever
N.C.
2
3
12
Base
Up
SV1
Back
Up
SV3
Pwr
Yellow
Capacitor
AC
White
1
P2
Black
1
14
1
DIP Switch
Assembly
Master Control Board
A
1
N.C.
Page i-78
Black
22
10
9
8
7
3
2
1
Green
Red
Clear
Black
Green
Shield
1
6
5
4
3
2
1
6
6
Green
Red
Clear
Black
Green
White
Black
Red
Green
Yellow
Blue
Foot
Control
M
Touch
Pad
Control
M
6
1
Chassis
Green
Chair Mount
PN: 2662-259A
Safety Switches
Cantilever
Cantilever Base Pivot
Advantage by DentalEZ™ Chair
Wiring Schematic
M Wiring
Extension
Shield
5
5
3
Red/Black
White
Black
Gray/Black
Brown/Black
2
Black
4
3
4
2
Back Upper
Limit Switch
(LS4)
3
Green
Red/Black
White/Black
Black
Gray/Black
Brown/Black
1
Back
2
1
6
5
4
3
2
1
Black (DC Ground)
Gray/Black (Calibration A)
White/Black (Control Signal A)
Gray/Black Calibration M)
Brown/Black (Power On LED)
White (Control Signal M)
Red/Black (+12 VDC)
Black
Black (DC Ground)
Yellow/Black
Red (+5VDC)
Gray
Blue
Yellow
1
A Wiring
Extension
P4
UP
Back
Potentiometer
(P2)
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N.C.
LED
2
Assembly 3
Advantage
6
1
13
1
A
1
25
P4
14
1
P3
Section I Chairs
P1
Red
2
CW
1
Limit
Switch
(LS2)
3
Aux AC
Relay
2
When a relay is not used, a shielded jumper wire is placed in line on the light connection.
When optional switches are not installed, connectors are plugged into each other.
120 & 220 VAC relays connect to the chair light connection.
24 VAC relay connects to the CMU main wire harness through a jumper wire which controls the light common.
6
7
8
1
Light
Connection
White
Black
Red
Green
Yellow
Blue
Foot
Control
A
1
Relay
(Optional)
Red/White
Touch
Pad
Control
A 6
As functions move up, all potentiometer pin #2 voltages increase.
Green
8
7
5
White
Black
Green (Safety Ground)
Chassis
115 V Chair
Power Cord
Aux
Safety
Limit
Hand Piece
Switch
(Optional)
(LS7)
(Optional)
White (AC Line Neutral)
Black (AC Line Hot)
Limit
Switch
(LS3)
Pins 9 through 12 are neutral.
6
2
1
5
4
12
13
14
11
10
7
8
9
5
4
3
P3
6
6
5
4
25
24
23
21
20
19
18
17
16
15
14
13
12
11
Black (DC Ground)
Purple
Orange/Black
Black
Red (+5 VDC)
Brown
Pink
Purple
Orange
Red
Orange/Black
115 VAC Hookup
3
CW
3
1
N.C.
Base Upper
Limit Switch
(LS1)
1
UP
N.C.
All wires are black.
1
2
Chassis
Pump
Ground
Green/Yellow
16
N.C.
Connections shown in line for clarity.
P5
Base
Down
SV2
Back
Down
SV4
Ret
P5
Base
Potentiometer
(P1)
4
Base Cantilever
N.C.
2
3
12
Base
Up
SV1
Back
Up
SV3
Pwr
Yellow
Capacitor
AC
White
1
P2
Black
1
14
1
DIP Switch
Assembly
Master Control Board
A
6
N.C.
View A--A
Black
1
22
10
9
8
7
3
2
1
Green
Red
Clear
Black
Green
Shield
3
2
1
1
6
5
4
6
6
Green
Red
Clear
Black
Green
M Wiring
Extension
Shield
5
5
3
Red/Black
White
Black
Gray/Black
Brown/Black
2
Black
4
3
4
2
Back Upper
Limit Switch
(LS4)
3
Green
Red/Black
White/Black
Black
Gray/Black
Brown/Black
1
Back
2
1
6
5
4
3
2
1
Black (DC Ground)
Gray/Black (Calibration A)
White/Black (Control Signal A)
Brown/Black (Power On LED)
Gray/Black (Calibration M)
White (Control Signal M)
Red/Black (+12 VDC)
Black
Black (DC Ground)
Yellow/Black
Red (+5 VDC)
Gray
Blue
Yellow
1
A Wiring
Extension
P4
UP
Back
Potentiometer
(P2)
N.C.
LED
2
Assembly 3
White
Black
Red
Green
Yellow
Blue
Foot
Control
M
Touch
Pad
Control
M
6
1
Chassis
Green
®
P.N. 2717-194B
Chair Mount
Safety Switches
Cantilever
Cantilever Base Pivot
aXcs Chair
Wiring Schematic
aXcs II
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Page i-79
2500 Highway 31 South
Bay Minette, Alabama 36507
1-866-DTE-INFO
Fax: (251) 937-0461
www.dentalez.com
© DentalEZ Alabama, Inc.
Printed in USA
September, 2009
Chairs with Air Glide
T
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G
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AIR GLIDE TUBING DIAGRAM
Red
VALVE
Red
60
100
PSI
40
20
0
REGULATOR
80
AIR CASTER
White
Technical Manual
Page i-80
Section I Chairs
2500 Highway 31 South
Bay Minette, Alabama 36507
1-866-DTE-INFO
Fax: (251) 937-0461
www.dentalez.com
© DentalEZ Alabama, Inc.
Printed in USA
January, 2010

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