LG | V-C7050NT | User's Manual | LG V-C7050NT User's Manual

VACUUM CLEANER
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.
MODEL: V-C7050NT, V-C7050HT
V-C7070CT, V-C7070CP
CONTENTS
SAFETY PRECAUTIONS ......................................................................................................................... 3
CAUTIONS................................................................................................................................................ 3
DESCRIPTION.......................................................................................................................................... 4
SPECIFICATIONS..................................................................................................................................... 4
DISASSEMBLY ......................................................................................................................................... 5
TROUBLE SHOOTING ..............................................................................................................................6
BLOCK DIAGRAM.....................................................................................................................................9
SCHEMATIC DIAGRAM ............................................................................................................................9
CIRCUIT DIAGRAM.................................................................................................................................. 9
EXPLODED VIEW ...................................................................................................................................13
REPLACEMENT PARTS LIST.................................................................................................................17
APPENDIX .............................................................................................................................................. 19
1. THE TYPE OF POWER CORD & PARTS NUMBER .................................................................................19
2. COLOR & PARTS NUMBER ..................................................................................................................20
3. MOTOR & PWB ASSY PARTS NUMBER ................................................................................................20
2
SAFETY PRECAUTIONS
BEFORE OPERATING THIS VACUUM CLEANER, READ THIS SERVICE MANUAL THOROUGHLY,
AND OBSERVE EACH POINT CAREFULLY.
1. Motor filter(Air Cleaner)
3. Avoid suction such materials as :
1) This filter is reusable.
2) Never use the vacuum cleaner without filter.
It may damage the motor.
1) Liquid or wet dust :
Clogs the ventilation holes, reduces the suction
power significantly and harms the motor.
3) When the light of body is on, wash the motor filter
with water and brush.
2) Inflammable liquids such as benzene, alcohol or
solvents.
4) Even if the light is not on, wash the motor filter at
least once 6 months.
3) Burning objects such as cigarette butts.
4) Bulky objects such as vinyl, paper etc.
5) Sharp objects such as needles, pins, metal, glass
particles etc.
NOTE : Reusing of the motor filter.
Never wash the filter in a washing machine or in a
dishwasher.
4. Attachments
• Nozzle : For cleaning wooden floor, the room floor
and carpet.
Never use hot water for washing the filter.
Reuse the filter after drying it completely in the
shade for a day.
• Dusting Brush and Crevice Tool:
For cleaning any crevice, inside corners of window
frames.
For delicate vacuuming of fabrics on the furniture,
curtains, etc.
Do not dry near fire or direct sunray.
2. Exhaust filter(Washable HEPA filter)
• Upholstery Nozzle : For vacuuming the dust on the
upholstery.
1) This filter is reusable HEPA filter.
2) For clean air, theis filter must be assembled.
However, do not use the crevice tool more than 20
minutes because it may cause harm to the motor.
3) Wash the exhaust filter with water once a year.
NOTE : Reusing of the exhaust filter.
5. Close supervision is necessary when this
vacuum cleaner is used by or near children.
Children’s carelessness may cause damage to
the cleaner or injure persons.
Never wash the filter in a washing machine or in a
dishwasher.
Never use hot water for washing the filter.
Reuse the filter after drying it completely in the
shade for a half day.
6. Air exhausted from the vacuum cleaner is
normally warm. But if extraordinarily hot air is
exhausted, check if the telescopic tube, hose or
clean filter is clogged or not.
Do not dry near fire or direct sunray.
Do not brush the filter. This will cause permanently
damage allowing dust to by-pass the filter.
7. Electric shock could occur if used outdoors or
on wet surfaces.
CAUTIONS
BEFORE ATTEMPTING TO SERVICE OR ADJUST ANY PART OF THE VACUUM CLEANER, DISCONNECT
THE ELECTRICAL POWER SUPPLY CORD FROM THE WALL OUTLET.
1. Motor exchange
2. In case of exchanging other parts. refer to the
exploded view.
1) Separate the Body Cover and Body Base by
unfastening the screws.
2) After disconnecting the lead wires, replace the old
motor with a new one.
3
DESCRIPTION
Cord Reel Button
Flexible Hose ASS'Y
Telesscopic
Pipe ASS'Y
Dust Tank
Power Cord
Filter Cover
Nozzle ASS'Y
CANISTER
ATTACHMENTS
DUSTING BRUSH & CREVICE TOOL
UPHOLSTERY NOZZLE
BRUSH ASS'Y
SPECIFICATIONS
• MODEL : REFER TO THE COVER PAGE
• POWER SOURCE : ON RATING PLATE
• POWER CONSUMPTION : ON RATING PLATE
• POWER CONTROL :
- MAIN : SLIDE CONTROL (F/HOSE)
(V-C7050HT)
MICOM CONTROL (F/HOSE)
(V-C7070CT)
PUSH ON/OFF(BODY)
(V-C7050NT)
• CORD LENGTH : 7m
• HOSE LENGTH : 1.8m
• NET WEIGHT : 5.3Kg
• PACKING WEIGHT : 8.4Kg
• NET DIMENSION : 290 × 443 × 311(W × D × H)mm
• PACKING DIMENSION : 330 × 567 × 385(W × D × H)mm
• ATTACHMENTS
HOSE ................................................................ 1EA
TELESCOPIC PIPE ASSY ................................ 1EA
NOZZLE ASSY.................................................. 1EA
DUSTING BRUSH & CREVICE TOOL.............. 1EA
UPHOLSTERY NOZZLE ................................... 1EA
BRUSH ASS'Y................................................... 1EA
- SUB : VACUUM POWER ADJUSTMENT BY
SLIDE KNOB (V-C7050NT)
This specifications are subject to change according to the buyer’s request.
4
DISASSEMBLY
NOTE: Before attempting to service or adjust any part of the vacuum cleaner, disconnect the electrical
power supply cord from the wall outlet.
• Almost all the parts of this vacuum cleaner can be
disassembled with a screw driver and each connecting
component easily fits each other.
Disassemble one by one referring to the exploded view.
• If possible, don’t disassemble except for the
necessary parts. It is not necessary to disassemble
the parts that are not detailed in the exploded view.
1. Body Cover Assembly Replacement
1) Remove the dust tank from the set.
2) Bring out the motor and disconnect the lead wires
from it.
Motor Ass'y
2) Remove the four screws fastening the body base.
3. Cord Reel Assembly Replacement
1) Remove the cord reel cover by unfastening the
screw.
3) Disassemble the filter cover, widening the both of
filter cover, and then pull out the lead wires from
the push switch.
2) Lift the cord reel assembly from the body base.
Cord Reel Ass'y
2. Motor Assembly Replacement
1) Unhook the motor housing cover in the direction
of the arrow.
5
TROUBLE SHOOTING
1. SWITCH ON BUT MOTOR DOES NOT TURN
CHECKING
CHECK THE POWER
SOURCE
CAUSE
SOLUTION
The fuse is melt down in the
coverknife switch.
Exchange the fuse.
Poor plug insertion
Insert again.
Power cord cut
Repair or exchange.
Interior lead wire cut
Exchange the lead wire.
Motor(stator, armature) coil
cut or damaged.
Exchange the motor.
Poor contact carbon brush
defaced.
Exchange or repair the motor.
Poor switch contact point
Exchange the switch.
2. SWITCH ON, MOTOR DOES NOT TURN BUT BUZZES
Motor armature cut.
Exchange the motor.
Ball bearing defacement
Exchange the motor.
Impeller hindrance
(Caused by foreign matters)
Remove the foreign matters.
6
3. SWITCH OFF BUT MOTOR TURNS
Poor connection
Repair.
Poor switch
Exchange the switch.
Carbon brush defaced
Exchange the carbon brush
or the motor.
Motor armature cut
Exchange the motor.
Foreign matters attached to
the impeller
Remove the foreign matters.
Low voltage
Inquire to the power utility
company.
Hose and extension wands
are clogged with foreign
matters.
Remove the foreign matters
in the hose or extension
wands.
The slide knob on the handle is
opened or the control knob is
located on weak position.
Close the slide knob by sliding it.
Regulate the knob.
The motor filter is clogged.
Clean the motor filter.
The exhaust filter is clogged.
Exchange the exhaust filter.
4. WEAK SUCTION POWER
Low rotation speed
Motor turns normally,
but suction power is weak.
7
5. VIBRATION NOISES
Loose parts
Secure firmly.
Unbalanced motor assembly
Exchange or repair the motor.
Foreign matters are attached
to the impeller.
Remove the foreign matters.
Poor carbon brush rectification
Exchange the motor.
Armature is cut or foreign
matters attached.
Exchange the motor
Remove foreign matters.
6. RADIO, TV RECEPTION DISTURBANCE
Poor cord, lead wire
Exchange cord, lead wire.
Poor rectification of
carbon brush
Exchange the motor.
Poor electric connector or
receiver
Repair the electric connector
or receiver.
Poor capacitor
Exchange the capacitor.
7. IMPROPER TUBE OR NOZZLE CONNECTION
Bent connection parts
Exchange the parts.
Poor connection
(Caused by foreign matters)
Remove the foreign matters
and reconnect.
8
BLOCK DIAGRAM
(V-C7050NT)
POWER S/W
BR
BR
PRESSURE S/W
CORD REEL ASS'Y
RD
T/P
PLUG
RD
GY
MAIN
PWB
ASM
GY
BL
BL
MOTOR
BK
GY
LED PWB ASM
SCHEMATIC DIAGRAM
(V-C7050NT)
POWER S/W
BR
BR
RD
PRESSURE S/W
T/P
RD
GY
MAIN
PWB
ASM
GY
BL
M
BL
BK
GY
LED PWB ASM
CIRCUIT DIAGRAM
(V-C7050NT)
POWER S/W
M
R6
10,1/2W
D1
1N4007
C5
0.1µF
250V
C1
0.47µF
250V
OPTO-TRIAC
R11
470
ZD1
5.6V
PRESSURE
S/W
+
R7
3K
C4
100GµF
16V
1
6
2
4
R3
110K
Q1
C3198
LED1
C3
6871FX3078
FLICKER
9
TRIAC
T2
R10
3.9K
1/2W
R8
1K
T/P
R1
100
1/2W
R9
470
R2
33
1/2W
G
DIAC
R4
33
1/2W
T1
C2
0.1µF
250V
BLOCK DIAGRAM
SLIDE VOLUME
(V-C7050HT)
LED PWB ASM
POWER S/W
BK
BR
GY
BR
RD
T/P
RD
HOSE
MAIN
PWB
ASM
SUB
PWB
ASM
PRESSURE S/W
BL
BL
GY
GY
SCHEMATIC DIAGRAM
(V-C7050HT)
LED PWB ASM
POWER S/W
BR
BR
SLIDE VOLUME
T/P
SUB
PWB
ASM
GY
PRESSURE S/W
GY
MAIN
PWB
ASM
M
CIRCUIT DIAGRAM
(V-C7050HT)
MOTOR
M
D6
1N4002
R8
1K
R11
390
R9
100
IC1
IC2
R16
1.5K
POWER
S/W
T/P
TRANS BD1
C1
0.47uF
/AC250
R12
5.6K
+
LED1
C4
2200uF
16V
PRESSURE
S/W
R13
1K
PHOTO-TRIAC
R14
100
Q3
C3198
R15
12K
S/VOL
VR/
20K
C3
0.47uF
/100V
R1 R10-1
470K 470K
1/2W 1/2W
10
R5
100
Q2
A1015
R6
18K
D5
1N4148 R7
13K
R3
470
1/2W
PHOTO-TRIAC
Q1
C3198
R4
11K
G
R2
330
1/2W
C2
T2 0.1uF
630V
T1
R1
100
1/2W
BLOCK DIAGRAM
(V-C7070CT)
DISPLAY
PWB ASM
RD
DUST
SENSOR
PWB ASM
HOSE
PWB
ASM
RD
MAIN
PWB
ASM
SUB
PWB
ASM
DUST
SESM
PWB ASM
BL
BL
PRESSURE
S/W
11
T/P
A
2.2K
4.3K
1.2K
R22
R23
R24
B
11K
R21
C
S/W4
S/W2
S/W3
S/W1
D
E
R37
1
F
G
12
Q17
KRC107M
R36
10
CN8
CN6
Q16
KRC107M
R31
10
R13
10
R32
10
R14
1.5K
ST-7L
Q11
KRC107M
Q6
KRC107M
EL-7L
2
1
Q15
KRC107M
R15
1.0K
CN7
C20
0.1uF
Q12
KRC107M
R33
10
Q5
KRC107M
CN5
R24
10K
R34
10
4
5
6
1
29
28
24
25
26
Q14
KRC107M
27
C12
0.01uF
25V
10
R23
10K 11
C10
0.1uF
Q4
KRC107M
Q13
KRC107M
R13
2.7K
R16
30K
R17
2K
1%
R01
R02
R03
R07
R06
R05
R04
R46
R45
R44
R65/AN5
R64/AN4
R56
R41
R55/BUZ
Xout
Xin
VSS
RESET
VDD
AVref
R40/INT0
MICOM
19
18
20
17
30
9
13
15
12
14
R8
1M
C6
0.1uF
R9
470K
C7
0.01uF
25V
R7
4.7K
CN2
Q2
KRC107M
CST4.0M
X-TAL
7042
RBD
IC3
Q1
C3198
R25
10K
C13
0.1uF
+5V
R6
10K
1%
R5
100K
1%
C5
0.1uF
O
PRESSURE S/W
BZ
R11
1K
R12
470
G
KIA78L05P
IC2
C8 +
1uF
16V
C4
0.1uF
I
+12V
+
D1
1N4002
C3
1000uF
16V
Q3
KRC107M
R4
470
CN1
4
3
2
1
IC1
R10
470K 1/2W
DF01M
BD1
2
1
R3
G
R10-1
470K 1/2W
TRANS
R2
330
1/2W
TLP762JF
4
6
470 1/2W
T1
T2
250V
C1
0.47uF
TRIAC
SM12JZ47
C2
1/2W
100
R1
630V
0.1uF
M
MOTOR
CIRCUIT DIAGRAM
(V-C7070CT)
GMS81504(T)
EXPLODED VIEW
135506
750063
139202
249701
140561
146811
239402
135507
152313
252301
333002
149741
333003
139204
748382
146871
236601
149308
145103
235504
252311
130401
146611
148201
235505
144411
13
135510
135510
135509
268712
135509
V-C7050NT/HT
V-C7070CT/CP
335503
268712
150061
136501
250201
168711
249701
V-C7050NT
V-C7050NT
168711
235501
168711
140261
349701
V-C7070CT/CP
249011
268712
166012
268711
135508
168711
452002
V-C7050NT
468011
435506
440361
435506
440361
468712
452003
452003
V-C7050NT/HT
V-C7070CT
14
468711
452151
436501
449321
449321
435501
452151
652012
552491
652031
652481
652032
15
452151
449321
435501
16
REPLACEMENT PARTS LIST
LOCATION NO.
PART NO.
DESCRIPTION
130401
Refer to appendix
135506
3550FI3800A
135507
Refer to appendix
COVER, CORD REEL
135508
Refer to appendix
COVER, BODY SUB
135509
Refer to appendix
BOARD, DISPLAY
REMARK
BASE, BODY
COVER, MOTOR HOUSING
3550FI3805A
135510
APPLICATION
V-C7050NT/HT
COVER, SENSOR
3550FI2513A
V-C7070CT/CP
136501
Refer to appendix
HANDLE, CARRIER
139202
3920FI3770A
PACKING, MOTOR MOUNTING
139204
3920FI3769A
PACKING, SEAL
140261
Refer to appendix
LATCH, COVER
140561
Refer to appendix
LOCKER, DUST CAP
144411
4441FI3605J
145103
Refer to appendix
LEVER, CORD WINDING
146611
Refer to appendix
WHEEL, ASS'Y
146811
Refer to appendix
MOTOR ASS'Y, VC
146871
4687FI1420X
CORD REEL ASS'Y
148201
4820FI2391A
BUMPER, BODY
149308
Refer to appendix
HOLDER, PLUG
149741
4974FI2396A
GUIDE, EXHAUST
150061
5006FI3691A
CAP, HANDLE
152313
5231FI3768A
FILTER ASS'Y, CLEAN
166012
6601FI3488A
SWITCH ASS'Y, PRESSURE
168711
Refer to appendix
PWB(PCB) ASS'Y, MAIN
168711
Refer to appendix
PWB(PCB) ASS'Y, MAIN
268711
Refer to appendix
PWB(PCB) ASS'Y, SUB
235501
Refer to appendix
COVER, BODY
235504
3550FI2504B
COVER, EXHAUST FILTER-R
235505
3550FI2503B
COVER, EXHAUST FILTER-L
236601
3660FI2286A
HOUSING(MECH), MOTOR
239402
3940FI3646A
SPONGE, ABSORBING
CASTER, ASS'Y
17
LOCATION NO.
PART NO.
DESCRIPTION
249011
4901FI3435B
DAMPER, ASS'Y
249701
4970FI4724A
SPRING, BUTTON
250201
Refer to appendix
252301
5231FI3758C
FILTER ASS'Y, CLEAN
252311
5231FI3767A
FILTER ASS'Y, EXHAUST
REMARK
V-C7050NT
BUTTON, POWER SWITCH
6871FX3078A
268712
APPLICATION
V-C7050NT/HT
PWB(PCB) ASS'Y, DISPLAY
6871XF3080A
V-C7070CT/CP
333002
Refer to appendix
PLATE, COVER(L)
333003
Refer to appendix
PLATE, COVER(R)
335503
Refer to appendix
COVER ACCESSARY
349701
Refer to appendix
SPRING, LATCH
435501
3550FI1553A
COVER, GRIP HANDLE
435506
3550FI3802A
COVER, TERMINAL
436501
3650FI1485C
HANDLE, GRIP
440361
4036FI3603A
SEAL, PIPE
4932FI2364D
449321
V-C7050NT/HT
CONNECTOR(MECH), HOSE ASM
4932FI2723A
V-C7070CT/CP
452002
5200FI2480A
PIPE, CONNECTOR
452003
Refer to appendix
452151
5215FI1315E
HOSE ASS'Y, FLEXIBLE
468711
6871FX3077A
PWB ASS'Y SENSOR
V-C7070CT/CP
468712
6871FX3077B
PWB ASS'Y SENSOR
V-C7070CT/CP
552491
5249FI1399C
NOZZLE ASS'Y, FLOOR
652012
Refer to appendix
652031
5203FI2069A
BRUSH ASS'Y, DUST
652032
5203FI3744A
BRUSH ASS'Y, FILTER-CLEANER
652481
5248FI3454A
NOZZLE, UPHOLSTERY
748382
Refer to appendix
TANK, DUST
750063
Refer to appendix
CAP, DUST
PIPE, CONNECTOR-H
PIPE ASS'Y, TELESCOPIC
18
APPENDIX
1. THE TYPE OF POWER CORD & PARTS NUMBER
A-1
CORD REEL ASSY P/NO.(L/NO.146871)
TYPE OF PLUG
17
TYPE
17
12.7
S-1
C-2
19
6.3
4687FI1420X
4.8
19
19
C-1
4
19
Color identification
of fuse
B-3
Brown
13A
Yellow
5A
Blue
3A
19
2. COLOR & PARTS NUMBER
LOCATION NO.
130401
135507
135508
135509
DESCFIPTION
BASE BODY
COVER, CORD REEL
COVER, BODY SUB
BOARD, DISPLAY
136501
HANDLE, CARRIER
140261
140561
145103
146611
148201
149308
235501
250201
333002
333003
335503
435501
452003
LATCH, COVER
LOCKER, DUST CAP
LEVER, CORD WINDING
WHEEL, ASS'Y
BUMPER, BODY
HOLDER, PLUG
COVER, BODY
BUTTON, POWER SWITCH
PLATE, COVER(L)
PLATE, COVER(R)
COVER, ACCESSARY
COVER, GRIP HANDLE
PIPE, CONNECTOR-H
452151
HOSE ASS'Y, FLEXIBLE
652012
PIPE ASS'Y TELESCOPIC
748382
750063
TANK, DUST
CAP, DUST
LIGHT SILVER
3040FI1487B
3550FI1558B
3550FI1561B
3500FI2240B
3650FI1486B
3651FI1309A
4026FI3669B
4056FI3648D
4510FI3598B
4661FI3613B
4820FI2391B
4930FI2448B
3550FI1560B
5020FI3771B
3300FI3683B
3300FI3684B
3550FI1559B
3550FI1553Q
5200FI1215B
5215FI1319D
5215FI1315E
5215FI1320B
5201FI1004A
5210FI2446D
4838FI1397B
5006FI1327B
NOBLE DEEP BLUE
3040FI1487B
3550FI1558B
3550FI1561B
3500F22240B
3650FI1486B
4026FI3669A
4056FI3648D
4510FI3598B
4661FI3613B
4820FI2391B
4930FI2448B
3550F21560B
5020FI3771A
3300FI3683B
3300FI3684B
3550FI1559B
5200FI1215B
NOBLE RED YELLOW GREEN DEEP BLACK
3040FI1487E
3550FI1558E
3550FI1561E
3500F22243E
REMARK
V-C7050NT/HT
V-C7070CT/CP
3651FI1309C
4026FI3669D
4056FI3648D
4510FI3598E
4661FI3613E
4820FI2391E
4930FI2448E
3550FI1560F
5020FI3771D
3300FI3683E
3300FI3684E
3550FI1559D
3550FI1553Y
5200FI1215K
5215FI1319E
V-C7070CT/CP
V-C7070CT
V-C7050NT
V-C7050HT
5215FI1315E
5215FI1320C 5215FI1320K
5201FI2446D
4838F21397B 4838FI1397D
5006F21327B 5006FI1327E
3. MOTOR & PWB ASS’Y PARTS NUMBER
LOCATION
NO.
146811
LOCATION
NO.
DESCRIPTION
MOTOR ASS'Y, VC
DESCRIPTION
168711
168711
PWB(PCB) ASS'Y, MAIN
PWB(PCB) ASS'Y, MAIN
268711
PWB(PCB) ASS'Y, SUB
PART NO.
REMARK
4681FI2451A
4681FI12457A
4681FI2456B
4681FI2456D
4681FI2456E
VMC400E5, 230V/50Hz
VMC420E5, 230V/50Hz
VMC460E5, 220~230V/50Hz
VMC460E8, 220~230V/50Hz
VMC460E9, 240V/50Hz
240V/50Hz
110V/60Hz
120V/60Hz
PART NO.
6871FX2136A
6871FX2141A
6871FX2142A
6871FX2145A
20
V-C7030NT
V-C7040TN/C7045HT
V-C7050NT/HT
V-C7070CT/CP
V-C7070CT/CP
REMARK
V-C7050NT
V-C7050HT/V-C7070CT
V-C7050HT
V-C7070CT
MEMO
21
MEMO
22
P/No. : 3828FI3816A
December, 2001
Printed in Korea
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