Dual 1246 Service manual

 Edition August 1978
Service Manual
Dual Gebruder Steidinger 7742 St.Georgen/Schwarzwald
Fig. 1 TA-AnschluBschema / Audio Connection Diagram / Schema de branchement / Esquema de conexion del fono captor
a) mit DIN-Stecker 5-polig / with DIN-plug 5 pin b) mit Cynchstecker / with phono plug
avec fiche DIN 5 póles / con enchufe DIN de 5 poles avec fiche cynch / con enchufe Cynch
rechter Kanal
right channel
canal derecho Canal droit / Canal derecho | Canal droit / Canal izquierdo
rot / red / rouge / rojo rot (schwarz) / red (black) | gelb (weiß) / yellow (white)
rouge (noir) / rojo (negro) | jaune (blanc) / amarillo (blanco)
|
„ a Ty, 1 “a
1” 1 Tonabnehmerkabel : \
= _ a! Tonearm audio cable |
- Câble de BF +” NN
Cable del fonocaptor ! Cynch-Tonabnehmerkabel
| Pick-up lead with Cynch plug
linker Kanal : Câble de BF avec fiche Cynch
left channel | Cable ge aonacaptor con
canal gauche enchufe Cync
canal izqu lerdo Masse draht / Mass lead |
weiß / white / blanc / blancc | Mass cable / Masa cable | |
|
|
Masse rechter Kanal — F—Masse linker Kanal
Mass right channel | | Mass left channel
Masse canal droit | Masse canal gauche
masa canal derecho — | | masa canal izauierdo
|
| |
| |
|
L J
Гр оо E = = = Го nn TU
| | | |
| | |
| | | |
| | | |
a
| | | '
| |
| |
| | | |
rechter Kanal a LE o L J
right channel
canal droit r linker Kanal
canal derecho : |
| left channel KurzschlieGer
rot / red / rouge / rojo | canal gauche Muting switch
| canal izquierdo
wei / white / blanc / blanco
Court-circuiteur
Dispositivo cortocircuitador
Masse rechter Kanal
Mass right channel
Masse canal droit
masa canal derecho
grún / green / vert / verde
| Masse linker Kanal
| Mass left channel
Masse canal gauche
masa canal izquierdo
blau / blue / bleu / azul
Masse schwarz
Mass black ol
Masse noir
Masa negro
SE EE ENE EE SE ee EEN O ss ss rc ET SS на!
h po E Es БЕН Е e НЫ A A НЕ ОН БН Но БЫ == = ен = === === == =
Ма os A, A
a 7 ,
A 1 Prise de masse Tí 1 /
/ | / chapa de masa / /
/ / Kontaktplatte / | 7 Tonarmkopf
/ Contact plate / / Tée magnétique
| ee ns Ker sored
Contents
Pick-up Connection Diagramm
Technical Data
Motor and Drive
Speed Changeover
Platter
Flat belt
Replacement of Motor Pulley
Stroboscop
Pitch Control
Tonearm and Tonearm Bearing
Removal of Tonearm from Bearing Frame
Removal of Tonearm cpl. with Tonearm Bearing
Removal of Spring Housing
Adjustment of Tonearm Bearing
Antiskating Control
Tonearm Lift
Removal of Lift pin
Tonearm Control
Starting
Manual Start
Continuous Play
Muting Switch
Record to met drop
Stopping
Shut-off and Change Cycle
Shut-off Mechanism
Adjustment points: Tonearm set-down point
Set-down point for 30 cm records
Set-down point for 17 cm records
Shut-off point
Release rocker
— — wd md med "VU
QOOOODOODODODOOINNDOODODOOINBASBASSBONS
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11 Release
11 Correct nominal speed obtained only at extreme settings.
11 Platter does not
11 Platter does not reach required speed
11 Stylus slips out of playing groove
12 Pick-up head not parallel to platter
12 — 15 Replacement parts and exploded views
16 Lubrication
Specification
Current AC 50 or 60 Hz. Changeable by changing motor pulley
Line Voltage 110 — 130 V or 220 — 240 V, switchable
Drive Dual 8-pole synchronous motor: Flat belt for flywheel drive
Power consumption approx 10 watts .
Starting Time (to reach nominal speed) approx. 2 seconds at 33 1/3 rpm
Power consumption at 220 V,50Hz: approx. 75mA
at 117 V,60Hz: approx. 140 mA
Platter Speeds Non-magnetic, dynamically balanced, detachable, 1.3 kg, 304 mm Ó, total speed load
of drive system (Platter with flywheel drive) 2.1 kg
Platter Speeds 33 1/3 and 45 rpm, Automatic tonearm set-down coupled with speed adjustment
Total Wow and Flutter Acoording to DIN 45 507 (German Industry Standard) < + 0.09 %
Rumble Unweighted >42 dB
(according to DIN 45 500) Weighted > 63 dB
Tonearm Torsion-resistant tubular aluminum tonearm in four-point gimbal
Effective Length of Tonearm 221 mm
Offset Angle 24 0 4’
Tangential Tracking Error 0.169 /cm
Tonearm Bearing Friction Vertical < 0.07 MN (0.007 д)
(related to stylus tip) Horizontal < 0.16 mN (0.016 g)
Stylus pressure (0 - 30 g) operable from 2.5 mN (0.259) stylus pressure up
Cartridge Holder Removable, accepting any cartridges with 1/2" mounting and a weight from 5.5 to
10 g (including mounting hardware)
Adjustable Overhang 5 mm
Weight approx. 4.6 kg
For dimensions and cutout refer to Installation Instructions
Motor and Drive
The drive for the turntable platter and the changing mechanism is
supplied by a split eight pole synchronous motor suspended by
radially located elastic mounts and having a very small magnetic
stray field as well as little vibration.
The speed of the motor is independent of line voltage, tempera-
ture or load variations, Speed is dependent on and proportional
to power line frequency. The motor is adapted to 50 or 60 cycle
(Hz) power line frequencies by the correct choice of the motor
pulley (116).
Pulley for 50 Hz Art.-No. 234 453
Pulley for 60 Hz Art.-No. 243 454
The drive is transmitted to the platter by means of the griuded
flat belt (15).
Speed Changeover
Platter speeds of 33 1/3 and 45 rpm are adjusted by linking the
flat belt (16) to the corresponding step of the drive pulley (116)
(Fig. 3).
The speed switch lever is brought into the required position (33
or 45 rom) by means of the speed selection lever (16), the switch
lever (101) and the spring lever of the switch levers. If the device
is switched off, the switch lever is interlocked by the stop lever.
The speed is in this way only preselected. The stop lever (12) is
only released when the platter (7) turns. This then moves the flat
belt (15) onto the required step of the drive pulley (116).
Platter
The platter (7) is held in position by the platter locking lever (28).
When removing the platter, lift the platter covering over one of
the cutouts and rotate the platter until the cutout is above the
drive pulley. Detach the flat belt (15) from the drive pulley(116)
and lay it on the running surface of the platter (7).
Flat Belt
The exchanging of the flat belt is described above withthe platter
to be removed. Fit the new belt to the running surface of the
platter.
Attention: The griuded (mat) side had to be on the running sur
face. Install the platter Put the flat belt onto drive pulley (116).
Changing the drive pulley
1. Remove the flat belt (15) from the drive pulley (116) and
take off the platter (7). Remove the toothed belt (109).
2. Detach tension spring (114) from screening sheet (122).
3. Remove the hexagonal screw (110), remove the adjustment
cam (111), the belt pulley (112) as well as the counter
bearing (113).
4. Loosen set screws (117) and remove motor pulley (116).
Place complete replacement motor pulley on motor axle. Re-
move conical sleeve. Be careful with the interior distance
bushing. Adjust motor pulley vertically (see Fig. 3) and
tighten set screws (117) uniformly. Place conical sleeve into
the motor pulley (116).
5. Outer counter bearing (113), belt pulley 2 (112) and adjust-
ment cam (102) should now be fitted and the hexagonal head
mounting screws tightened (111). Replace the tension spring
and toothed belt (109). Install the platter (7). Fit the flat
drive belt (15) onto the drive pulley (116).
6. Setting up the nominal speed: set the regulator knob (16)
to its central position. By loosening or tightening the hexago-
nal nut (110) adjust the nominal speed.
Stroboscope
Excactly setting of the platter speed 33 1/3 rpm can be checked
during play with the aid of the stroboscope device.
When the platter (7) is rotating at exactly 33 1/3 rpm the lines
of the stroboscope appear to stand still. If the lines of the stro-
boscope move in the direction of rotation of the platter, the
platter speed is too high. If the lines move backwards, the platter
is rotating more slowly than the nominal speed.
Adjustment is carried out with the “pitch” knob (16).
Strobe markings for 50 or 60 Hz are provided on the platter rim.
When echanging the lamp the strobe must be removed from the
base plate (22). After removal of the stroboscope housing (244)
the lamp (215) may be exchanged.
Fig. 5
C1
C2
| 1 4
Pitch Control
The unit has a separately adjustable pitch control the two stand-
ard speeds 33 1/3 rpm and 45 rpm can be varied by approxima-
tely 6 % (semitone).
By turning the fine speed adjustment knob (16) the belt pulley 2
(112) is moved. This rotation is transferred by means of the
toothed belt (109) to the drive pulley 1 (105). (Fig. 9).Thus mo-
ving the counter bearing (113) upwards or downwards. The taper
bush of the drive pulley designed to vary the diameter of the
drive pully thus varying the nominal speed within the tolerance
of £3 %.
Fig. 9
109 112 111
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Tonearm and Tonearm Bearing
The Dual 1246 has a feather light, extremely torsion-resistant
aluminum tonearm which is suspended in a gimbal. Suspension is
by means of 4 hardened and precision polished steel points which
rest in precision ball bearings. Tonearm bearing friction 15 thus
reduced to à Minimum.
Bearing friction vertical << 0.07 mN (0.007 g)
Bearing friction horizontal < 0.16 mN (0.016 g}
Ensures of pick-up. Before adjusting the pick-up force the tone-
arm is balanced with the scale set to zero. Coarse adjustment 15
caried out by moving the weight with the pin (51) the subsequent
fine adjustment by turning the weight. The balance weight is
designed, so that pick-up cartridges having a deadweight (incl.
hardware) of 55 - 10 g can be balanced. The tracking force is
adjusted by turning the graduated spring housing (64) incorpo-
rating a coil spring. The scale has markings for a range of adjust-
ment from 0 to 30 mN (0 to 3 g) which permit accurate adjust-
ment of the tracking force.
Fig. 11
Removing the tonearm from the bearing frame
1. Clamp unit in the repair jig. Remove the balance weight
(51), remove clamp screw (58). Set spring housing scale (64)
to zero.
2. Turn the unit over and remove the screening sheet (149). Un-
solder the tonearm connections on the muting switch (146).
3. Turn the unit back to normal position. Turn the two fixing
screws (75) — SW 5.5 — counter-clockwise into the bearing
frame (68). Slide tonearm (63) backwards and lift tonearm
from bearing frame (68).
Reverse this procedure when reassembling.
Removing the tonearm compl. and tonearm bearing
1. Clamp unit in the repair jig. Remove the balance weight
(51), remove clamp screw. Set spring housing scale (64) to
zero.
2. Turn the unit over and remove the shield (149). Unsolder the
tonearm connections on the muting switch (146).
3. Remove main lever (177) and lock washer (242). Turn adjust-
ment screw (40) until guide bearing (241) and positioning
slide (204) are free. Remove lock washer (228) and position-
ing slide (204).
4. Unlock tension spring (212). Loosen lock washer (216) and
remove skating lever (215).
5. Remove lock washers (205 + 206) and take stop lever (179)
away from segment (200).
6. Remove hex nut (202) and take off segment (200).
7. Hold tonearm (50). Remove hex nut (42) and washer (41) a
well as tonearm cpl. with tonearm bearing.
Reverse this procedure when reassembling.
Replacing spring housing
Remove tonearm (50) from bearing frame (55) as described above.
Loosen lock nut (47) and threaded pin (46). Unscrew bearing
screw (66). Lift bearing frame (55). Remove spring housing (64)
and washer. When installing note that the helical spring catches
the bearing frame. And tighten bearing screw (66). Reinstall
tonearm (55). Set bearing play as described below using threaded
pin (46) and lock nut (47).
Adjusting the tonearm bearing
First balance tonearm exactly. Both bearings must have slight,
just perceptible play.
The horizontal tonearm bearing is correctly adjusted when at
anti-skating settings 0.5" and being touched it slides in wit-
hout resistance.: The vertical tonearm bearing is correctly ad-
justed when it swings in after being touched. The play of the
horizontal tonearm bearing should be adjusted with threaded
pin (46).
Antiskating Device
The adjustment of the antiskating force is made by turning the
indicator disc (73) located on the supporting back. The skating
lever (215) isdisplaced from the tonearm fulcrum by an amount de-
pending on the setting of this control. The antiskating force is
transmitted to the tonearm (50) via the tension spring (212) and
segment.
Optimum adjustment is carried out at the factorys for styliwith a
tip radius of 15 um (spherical), 5/6 and 18/22 um (elliptical),
and CD 4-cartridges.
Any alteration can only be carried out with the aid of a Dual-
Skate-U-Meter and a test record and should only be done by an
authorized service station.
Any check may be carried out as follows:
Balance tonearm (50) exactly. Set pointer washer (73) to zero
position. The tonearm is now to stop at any point of its turning
range. The boring of the skating lever (215) is to vanish towards
the center axle of the tonearm — adjustable with the eccentric
(E). This part is accessible with the aid of the boring in the back
cover (72) (Fig. 12).
Set pointer washer (73) to “0.5”. Now the tonearm must slide
back from the platter centre to its rest position (49) without
braking.
Tonearm lift
Raising the lever (218) to position * Y “ or“ Y” moves the lift
cam (219) and the setting rail (204) so that the tonearm is raised
from the record (or lowered onto it). If the unit is started with
the arm lever in the Y ” position, then the tonearm is guided
over the record by the set-down mechanism. Only when the lever
(218) is brought to the position “ Y “ will the tonearm be lowe-
red onto the record. The vertical lift height can be adjusted by
means of the locating screw (40) and should be 3 — 5 mm.
Fig. 13
Adjustment of lifting Bolt
1. Remove tonearm cpl. with tonearm bearing as described on
page 5).
2. Remove guide (68) on lifting bolt. Remove lock washer
(51), adjusting sleeve (52) and second lock washer (68).
3. Remove lifting bolt (68) and compression spring.
Before reassembling clean lifting bolt and lift tube and smear
constant with wacker silicone oil AW 300 000.
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40 241 72
Tonearm Control
Automatic movement of the tonearm is initiated by the control
cams on the inside of the cam whel (161) on rotating through
3500,
The control elements for raising and lowering are the main lever
(177) and lift pin (256), for horizontal movement the main lever
(177) with segment (200).
The automatic tonearm set down isdesigned for 30 cm and 17 cm
records and is coupled to the platter speed changeover. The set-
down points of the tonearm are determined by the spring pin of
segment (200) contacting the setting rail (204). Limitation of
the horizontal movement of the tonearm is produced by the pin
of segment contacting the stop attached to the setting rail. Only
during set-down does main lever (177) lift the slide bar and the
stop attached to it which, as a result, moves into the swivel range
of the stop pin fitted on the segment. After completion of set
down (lowering of the tonearm onto the record) the setting rail
(204) is released again and returns to neutral position. As a result
the stop moves out of the swivel range of the stop pin so that
unimpeded horizontal movement of the tonearm is possible for
playing.
Start
Switching the start/stop lever (48) into the “start” position initi-
ates the following sequence:
a) The start lever (207) rotates the switch lever (193) which is
pivoted about the notched stud. At the same time, the switch
arm is moves and the motor (132), via the mains switch (135),
and the platter starts turning.
b) Operating the start/stop lever (58) also releases the start slide
(191) which is drawn toward the cam by means of the tension
spring (192). This causes the shut-off lever to engage with the
drive pinion and the cam turns.
c) Moving the switch lever (48) releases the start angle (191)
which is pulled towards the cam wheel by means of the ten-
sion spring (192). As a result, the shut-off lever is transpor.
ted to the range of the dog on the platter (PR), thus driving
the cam wheel.
Manual start
The latch (236) which is connected to the switch arm (186) en-
gages in the four-sided plate when the tonearm is moved manu-
ally. The switch arm connects the mains supply to the motor via
the power switch and the platter rotates. When the run-out of
the record is reached, the tonearm is lifted and the motor is
switched off automatically. If the tonearm is lifted off the
record before the run-out, and returned by hand to the pillar,
then the bolt on the segment (200) engages the latch (236) so
that the switch arm is returned to its starting position. This
switches off the mains supply.
Fig. 14 AW AK 186 204 179
230 225 204 196 1,207
Continuous play
Continuous play is switched on by means of turning the ro-
tary knob (76) which turns the switch angle (236). The switch
lever (207) then forces the cam follower lever to start position.
After the record has been played the tonearm is guided back and
again set onto the record at its lead-in groove. This procedure is
repeate — also when using the changer facility — until the switch
lever (48) is taken to "stop" position or the rotary knob (78) to
position "1",
Muting switch
To prevent disturbing noises during automatic operation of the
tonearm the unit is fitted with a muting switch. Control of the
switch springs for both channels is effected by the camwheel.
With the unit in neutral state the short circuit of the pick-up
leads is eliminated.
Adjustment
In zero position of the cam there should be a distance of ap-
proximately 0.5 mm between the contacts of the muting switch.
This distance should be adjusted by bending the muting switch
contacts. The contacts should be sprayed with a suitable cleaning
agent.
Record drop
Insert the changing spindle — AW 3 for standard records (7 mm
or 1/4" center hole) or AS 12 for 45 rpm records (38 mm or
1 1/2" center hole).
The record drop is initiated by the cam wheel (161) whose drop
cam surface (AK) controls the release rocker (AW) and the chan-
ger actuator rod.
Stopping
When control lever is set to "stop”’ position the start lever which
is pulled towards the cam by means of tension, is free. Às a
result, the shut-off lever is moved into the range of dogs cam.
The guide lever remains in its stop position.
Shut-off and change cycle
The dog (M) on the turntable platter gear (PR) and the shut-off
lever (À) actuate both the change cycle at the end of the record
as well as the shut-off after the last record in a stack is played.
The shut-off bar (179) is guided along in proportion to the mo-
vement of the segment (200).
The shut-off procedure is imitated after a record has been played
by the dog (M) of the platter and the shut-off lever (A).
The shut-off lever (A) is moved towards the dog (M) of the plat-
ter within the shut-off range (record diameter 116 mm to
122 mm) (Fig. 16 a).
The dog engages the shut-off lever (A). The cam wheel (16) is
moved from O position and engage with the drive pinion of the
platter (Fig. 16 b).
The main lever (177) guides the tonearm back and effected the
tonearm to return to its rest position.
Fig. 17
Fig. 18
Shut-off mechanism
Shut-off and change functions are determined by the position of
the guide lever (U). After every start or recorddrop, the guide
lever is brought to its stop position by the main lever {longer end
towards the center of the main cam). As the record is dropped
the guide lever (U) is turned to its start position by the cam
rocker, so that the tonearm can swing in toward the record and
be lowered on to it. If there are no more records on the spindle,
and the cam rocker cannot turn the guide lever, the lever remains
in its stop position and allows the tonearm to swing to its rest
position,
When the main cam wheel (161) returns to its neutral position,
the switch arm (186) drops into a cut-out in the main cam,
opening the power switch (135) and disengaging the drive idler.
Tonearm set down point
Lift Dual loge sligthely in left bottom corner and turn out-side.
One of the adjustment screws in the opening now visible.
Set-down point for 30 cm records
Set adjustment knob (16) to “45” and adjust setting with a
suitable screwdriver. If the stylus sets down too far inside, turn
adjustment screw clockwise, if the stylus sets down outside the
30 cm record turn adjustment screw counter-clockwise.
Set-down point for 17 cm record
Set adjustment knob (16) to “33” and proceed by turning the
screw as described above.
Fig. 19
The switch off position
With the tonearm on the pillar, the eccentric (B) can be adjusted
to alter the switch-off position.
- ous SIM SEA PEA AA О esa ——
Release rocker
The eccentric screw (c) is used to alter the travel of the changing
bolt (168). The setting is correct when at the rest position of the
cam wheel (161) and with interlocked changer spindle, the
changing bolt (168) has a travel of 0.2 mm (Fig. 21).
Fig. 21
—177
& <
3
Pawl
The play of the pawl (236) may be adjusted with the eccen-
tric screw (E).
Pull out mains plug and turn unit over. Turn tonearm in until
pawl is caught. Turn cam wheel (161) out of "zero" position.
There should be about 0.3 mm play between paw! (236) and
square section. If necessary turn eccentric screw (E) to left or
right.
Tonearm vertical lift
The adjustable sleeve (52) is used to adjust the tonearm vertical
lift (for automatic operation). Pull out the mains plug, unlock
the tonearm, turn the cam wheel (159) until the tonearm reaches
its highest point. The tonearm should now be approximately
3 mm above the pillar stop (see Fig. 23). Adjust by means of
sleeve (52).
Defect Cause
Nominal speed lies
at limit of adjustment
range.
Platter does not the a) Belt not mounted
oe om >) Power supply 1
arm inside motor interupted
c) Motor pulley is loose
Platter does not turn a) Drive pulley is not
up to its required correct for local
speed. line frequency
b) Slippage between flat
belt and drive pulley
or between flat belt
and platter
¢) Excessive friction in
Motor bearing or bear-
ring
Stylus slips out of a) Excessive bearings
playing groove friction in tonearm
bearing.
b) Steel ball (178) of
shut-off bar missing
Fig. 22
Fig. 23
Mal adjustment of bearing
Repair
Set control knob (16) to its central position, loosen or tighten
the hexagonal nut (110) to set up the correct nominal speed.
a) Mount belt
b) Check connecting at switch plate and power play.
с) Fix Motor pulley
a) Renew drive pulley
b) Clean friction surface of flat belt, drive pulley and platter.
Renew flat belt if necessary. Once the platter, has been
cleaned do not touch it with your fingers.
c) Clean and oil bearings
a) Check tonearm bearings
b) Renew steel ball (178)
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Defect
Tonearm head not parallel to platter.
Cause
Seat of tonearm head on the tonearm tube has changed during
transport
Remedy
Remove platter. Insert screwdriver through the hole in the
chassis mounting plate. Align tonearm head and retighten screw.
Safety regulations
Servicing of electronic equipment should be performed only by
authorized service personnel.
During service the unit has to be operated with an isolated trans-
former.
Safety requirements (e.g. VDE 0860 H) have to be strictly observed
during repair.
In order to not reduce safety, the original design of the unit should
not be changed, e. g. cover plates, mechanically secured wiring,
tracking and creepage distance in air etc.
Use only factory replacement parts which must be reinstalled per
original design.
Upon completion of repair make shure that all accessible and
conductive parts do not carry line voltage.
Replacement parts
| Pos. | Part No. lary] Description Pos. | Part.No. Qty. Description |
1 | 238434 | 1 | Washer 42 | 210366 | 1 | Hex nut Ma
2 | 215470 | 1 | Automatic spindle 43 | 234 635 | 1 | Lock nut |
3 | 213895 | 1 | Automatic spindle 44 | 230 063 | 1 | Set screw
4 | 220 213 | 1 | Centering piece 45 | 242 590 | 1 | Frame complete
5 | 201 101 | 1 | Centering pin 46 | 234 634 | 1 | Set screw
6 | 246 754 | 1 | Platter covering 47 | 234 635 | 2 | Lock nut
7 | 246 755 | 1 | Platter complete 48 | 244 785 | 1 | Switch lever
8 | 234 428 | 1 | Support complete | 49 | 246 744 | 1 | Support complete
9 | 210472 | 2 | Machine screw M3x4 | 50 | 246 743 | 1 | Tone arm complete
10 | 210586 | 1 | Washer 3.2 | 51 | 239 420 | 1 | Balance weight
11 | 232 086 | 1 | Tension spring | 55 | 242 595 | 1 | Bearing frame complete
12 | 234 430 | 1 | Stop lever 56 | 236 160 | 2 | Supporting plate
13 | 232087 | 1 | Tension spring 58 | 236 051 | 1 | Clamp screw
14 | 210 194 | 1 Ring 59 | 239 741 | 1 | Pointer
15 | 246 084 | 1 | Flat beit 60 | 234 617 | 2 | Holding screws
16 | 234 912 | 1 | Adjustment knob 63 | 242 596 | 1 | Frame complete
17 | 232 078 | 1 | Bearing bush 64 | 236 907 | 1 | Spring housing complete
18 | 234 910 | 1 | Speed lever 66 | 234 637 | 1 | Bearing screw
19 | 237 222 | 1 | Speed cover 67 | 237 738 | 1 | Fillister screw
20 | 213 260 | 3 | Pin 2x6 68 | 237 660 | 1 | Guide
21 | 237 414 | 3 | Shipping screw 69 | 210 143 | 2 | Block washer 1.5
22 | 246 756 | 1 | Mounting plate 70 | 218 318 | 1 | Adjusting sleeve |
23 | 232972 | 3 | Spring suspension 71 | 241 930 | 2 | Fillister screw M3»5 |
234 815 | 1 | Spring suspension (tone arm, side back) 72 | 242591 | 1 | Cover back complete
24 | 230 529 | 4 | Threaded piece 73 | 239 582 | 1 | Pointer washer |
25 | 230 521 | 3 | Compression spring 74 | 210 362 | 1 | Hex nut
| 234 109 | 1 | Compression spring (tone arm, side rear) 75 | 216 867 | 1 | Lock washer 5.2/10
26 | 200723 | 4 | Rubber damping 76 | 225 176 | 1 | Curve washer
27 | 200 722 | 4 | Steel cup 77 | 210362| 1 | Hex nut
28 | 200543 | 1 | Lock washer 78 | 240 151 | 1 | Rotary knob
30 | 246 741 | 1 | Tone arm head complete 79 | 246 757 | 1 | Cover front complete
31 | 237 223 | 1 | Contact plate complete 80 | 200 444 | 2 | Spring washer
32 | 243 168 | 1 | Holder TK 25 100 | 210 146 | 6 | Lock washer 3.2
38 | 210472| 1 | Machine screw M3x4 101 | 232096 | 1 | Switch lever complete
39 | 234 599 | 1 | Pin 102 | 232 071 | 1 | Special spring
40 | 240 069 | 1 | Adjustment screw 103 | 232 094 | 1 | Connecting part
41 | 210643 | 1 | Washer 4.2/12/1 104 | 232079 | 1 | Special nut
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Pos. | Part No. faty Description [ Pos. | Part No. lary] Description
105 | 232 097 | 1 | Belt pulley ll 191 | 234 545 | 1 | Start-angle compl.
106 | 240 035 | 1 | Washer 192 | 229 698 | 1 | Tension spring
107 | 210 607 | 1 | Washer 3.2/10/0.5 193 | 244 784 | 1 | Switch assembly complete
108 | 210 362 | 1 | Hex nut M3 194 | 234 555 | 1 | Selector level complete (continuous play)
109 | 232 076 | 1 | Toothed belt 195 | 210 146 | 6 | Lock washer 3.2
110 | 244 104 | 1 | Hex nut М 3.5 196 | 234598 | 1 | Connecting piece
111 | 241 641 | 1 | Locating curve 197 | 236 095 | 1 | V spring
112 | 241 642 | 1 | Beit pulley | 200 | 242597 | 1 | Segment
113 | 241 644 | 1 | Counter bearing 201 | 234 026 | 2 | Set screw M25x4
114 | 233 777 | 1 | Tension spring 202 | 210 362 | 2 | Hex nut M3
115 | 232615 | 1 | Compression spring 203 | 223 777 | 1 | Guide
116 | 234 453 | 1 | Drive pulley 50 Hz 204 | 240 060 | 1 | Positioning slide
234 454 | 1 | Drive pulley 60 Hz 205 | 201 187 | 1 | Slip plate
117 | 233 137 | 2 | Set screw M25 x 3 206 | 210 145 | 6 | Lock washer 2.3 |
119 | 210 366 | 3 | Hex nut Má 207 | 244 709 | 1 | Switch lever |
120 | 210 480 | 1 | Machine screw M3x6 208 | 210641 | 1 | Washer 4,2/10/1
121 | 210 609 | 1 | Washer 3.2/10/1 209 | 210362 | 1 | Hex nut M3
122 | 241 328 | 1 | Screening plate 210 | 234 548 | 1 | Roll |
123 | 232 841 | 3 | Damping 211 | 210 143| 3 | Lock washer 1.5 |
124 | 232840 | 1 | Insert 212 | 218 591 | 1 | Tension spring |
125 | 241 570 | 1 | Top bearing bracket 213 | 201 184 | 1 | Adjustment washer
126 | 209 939 | 1 | Sleeve 215 | 240 086 | 1 | Skating lever
127 | 241 569 | 1 | Stator 110/220 V 216 | 210 146 | 6 | Lock washer 3.2
128 | 233815 | 1 | Machine screw 217 | 237 543 | 1 | Rubber sleeve
129 | 241 571 | 1 | Armature 218 | 237 541 | 1 | Handle lever
130 | 241 572 | 1 | Bottom bearing bracket 219 | 240 063 | 1 | Lift plate
131 | 210 525 | 2 | Machine screw M 4 x 25 220 | 210 353 | 1 | Hex nut M 2
132 | 242 076 | 1 | Motor SM 860/1 complete 221 | 240066 | 1 | Bearing plate
133 | 234 592 | 1 | Switch lever 222 | 210 469 | 2 | Machine screw M3x3
135 | 242 580 | 1 | Power switch (10 nF) 223 | 234 674 | 1 | Stop piece
242 583 | 1 | Power switch (68 nF) 224 | 210587 | 1 | Washer 3.271
136 | 236 335 | 1 | Slider | 225 | 234588 |-1 | Adjustment lever
137 | 200 444 | 1 | Spring washer 226 | 230 087 | 1 | Screw spindie |
138 | 233 012 | 1 | Switch plate complete (10 nF) | 227 | 210 146 | 6 | Lock washer 3.2
236 605 | 1 | Switch plate complete (68 nF) 228 | 210 145 | 6 | Lock washer 2.3
139 | 230 148 | 1 | Switch slide 229 | 232 545 | 1 | Securing spring
140 | 239 732 | 1 | Tension spring 230 | 234 593 | 1 | Intermediate piece
141 | 219200 | 1 | Snap spring — 231 | 203477 | 1 | Washer 2.7/8/1
142 | 230 355 | 1 | Capacitor 68 nF/250 V/20 % | 232 | 210353| 1 | Hexnut M 2
241 883 | 1 | Capacitor 10 nF | 233 | 239810| 1 | Securing spring
143 | 242 095 | 1 | Cover — 234 | 240070 | 1 | Intermediate plate
144 | 210 498 | 1 | Machine screw M3x28 | | 235 | 210469 | 2 | Machine screw M3x3
145 | 231 079 | 1 | Cable clamp |. 236 | 232599 | 1 | Pawl
146 | 232 987 | 1 | Muting switch complete 237 | 240071 | 1 | Square section
147 | 239562 | 1 | Soldering lug 238 | 210 146 | 6 | Lock washer 3.2
148 | 210 472 | 8 | Machine screw M3x4 239 | 229 704 | 1 | Washer 3.2/13/0.5
149 | 232 084 | 1 | Screening plate 240 | 210 472 | 8 | Machine screw M3x4
161 | 236912 | 1 | Cam wheel complete 241 | 229 362 | 1 | Guide bearing
162 | 200 522 | 1 | Snap spring 242 | 210 145 | 6 | Lock washer 2.3 |
163 | 210366 | 1 | Hex nut Má 243 | 243621 | 1 | Stroboscope trim plate
164 | 229 754 | 1 | Ball bearing 244 | 241 574 | 1 | Stroboscope housing complete
165 | 218 155 | 2 | Hex screw M4x6 245 | 225 321 | 1 | Glow lamp
166 | 242 100 | 1 | Bearing bridge 246 | 241 674 | 1 | Switch plate complete
167 | 234 576 | 1 | V-spring С 1|225322| 1 | Capacitor 68 nF/400 V
168 | 234 577 | 1 | Spindie complete ; | |
169 | 213920 | 1 | Compression spring C 2 | 224886 | 1 Capacitor 47 nF/250V |
170 | 213921 | 1 | Bushing D 112256247 | 1 | Diode BY 183/300
171 | 210 145 | 6 | Lock washer 2.3 | |R 1|232401| 1 | Resistance 22 kS2/0.25 W/5 %
172 | 210587 | 1 | Washer 3.2/7/1
173| 234677 | 1 | Bearing R 2|232402| 1 | Resistance 22 k§2/0.125 W/5 %
174 | 210 667 | 1 | Washer 5.3/10/0.5 247 | 241 675 | 1 | Cover
175 | 234 676 | 1 | Screw spindle 248 | 210469 | 2 | Machine screw M3x3
176 | 210 147 | ? | Lock washer a | 249 | 209 436 | 3 | Flat connector |
177 | 236 914 | 1 | Main lever | 250 | 209 424 | 1 | Miniature plug
178 | 211 718 | 1 | Ball 63 251 | 207 303 | 1 | Audio cable 5 pole
179 | 234 668 | 1 | Stop lever 252 | 207 301 | 1 | Audio cable cynch
180 | 234 558 | 1 | Ball bearing 253 | 209 425 | 1 | Cynch plug white
181 | 210 472 | 8 | Machine screw M3x4 254 | 209 426 | 1 | Cynch plug black
182 | 210 362 | 1 | Hex nut M3 255 | 214602 | 1 | Lug
183 | 234 544 | 1 | Spindle | | 256 | 232996 | 1 | Power cable Europe
184 | 210 586 | 1 | Washer 3.2/7/05 257 | 232 995 | 1 | Power cable U.S.A.
185 | 236 950 | 1 | Stop 258 | 210586 | 1 | Washer 3.2/7/0.5
186 | 234 542 | 1 | Switch lever complete *** | 214 120 | 1 | Cartridge mounting material
187 | 229 686 | 1 | Tension spring *** | 245548 | 1 | Operating instructions
188 | 210 144 | 1 | Lock washer 1.9 *** | 246 906 | 1 | Mounting instruction
189 | 234 579 | 1 | Shut off lever *** | 238324 | 1 | Shipping carton
190 | 210 145 | 6 | Lock washer 23 | ... | 241 278 | 1 Shipping carton CS 1246
not illustratet Modification reserved!
Lubrication Fig. 19 ED
All bearing and friction points of
the unit are adequately lubricated
at the works. Replenishment of oil
and grease is only necessary after
approximately 2 years of normal
use of the record player as the
most important bearing points
(motor bearings) have sintered
metal bushes.
Bearing points and friction fa-
ces should be lubricated sparing-
ly rather than generously.
It is important that no oil or
grease should come in contact with
the friction faces of the flat belt,
drive pulley and platter, other-
wise slip will occur.
When using different lubricants,
chemical decomposition can often
take place. To prevent lubrication
failure we recommend using the
original lubricants stated below.
Wacker Siliconeoil
AK 300 000
Haftól Renotac
NA. 342
BP Super Viskostatik
10 W/30
Shell Alvania Мг. 2
Isoflex POP 40
Silikondl
AK 500 000
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Molykote
Dual Gebrüder Steidinger 7742 St.Georgen/Schwarzwald