VACUUM CLEANER
SERVICE MANUAL
MODEL: V-C7050NT, V-C7050HT
V-C7070CT, V-C7070CP
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.
2
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
3
BEFORE OPERATING THIS VACUUM CLEANER, READ THIS SERVICE MANUAL THOROUGHLY,
AND OBSERVE EACH POINT CAREFULLY.
BEFORE ATTEMPTING TO SERVICE OR ADJUST ANY PART OF THE VACUUM CLEANER, DISCONNECT
THE ELECTRICAL POWER SUPPLY CORD FROM THE WALL OUTLET.
1. Motor filter(Air Cleaner)
1) This filter is reusable.
2) Never use the vacuum cleaner without filter.
It may damage the motor.
3) When the light of body is on, wash the motor filter
with water and brush.
4) Even if the light is not on, wash the motor filter at
least once 6 months.
NOTE : Reusing of the motor filter.
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 day.
Do not dry near fire or direct sunray.
2. Exhaust filter(Washable HEPA filter)
1) This filter is reusable HEPA filter.
2) For clean air, theis filter must be assembled.
3) Wash the exhaust filter with water once a year.
NOTE : Reusing of the exhaust filter.
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.
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.
3. Avoid suction such materials as :
1) Liquid or wet dust :
Clogs the ventilation holes, reduces the suction
power significantly and harms the motor.
2) Inflammable liquids such as benzene, alcohol or
solvents.
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.
4. Attachments
• Nozzle : For cleaning wooden floor, the room floor
and carpet.
• Dusting Brush and Crevice Tool:
For cleaning any crevice, inside corners of window
frames.
For delicate vacuuming of fabrics on the furniture,
curtains, etc.
• Upholstery Nozzle : For vacuuming the dust on the
upholstery.
However, do not use the crevice tool more than 20
minutes because it may cause harm to the motor.
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.
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.
7. Electric shock could occur if used outdoors or
on wet surfaces.
1. Motor exchange
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.
2. In case of exchanging other parts. refer to the
exploded view.
SAFETY PRECAUTIONS
CAUTIONS
4
DESCRIPTION
SPECIFICATIONS
Telesscopic
Pipe ASS'Y
Flexible Hose ASS'Y
ATTACHMENTS
Power Cord
Filter Cover
Nozzle ASS'Y
Cord Reel Button
Dust Tank
UPHOLSTERY NOZZLEDUSTING BRUSH & CREVICE TOOL BRUSH ASS'Y
This specifications are subject to change according to the buyer’s request.
• 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)
- SUB : VACUUM POWER ADJUSTMENT BY
SLIDE KNOB (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
CANISTER
5
•
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.
DISASSEMBLY
NOTE: Before attempting to service or adjust any part of the vacuum cleaner, disconnect the electrical
power supply cord from the wall outlet.
Motor Ass'y
Cord Reel Ass'y
1. Body Cover Assembly Replacement
1) Remove the dust tank from the set.
2) Remove the four screws fastening the body base.
2) Bring out the motor and disconnect the lead wires
from it.
3. Cord Reel Assembly Replacement
1) Remove the cord reel cover by unfastening the
screw.
2) Lift the cord reel assembly from the body base.
3) Disassemble the filter cover, widening the both of
filter cover, and then pull out the lead wires from
the push switch.
2. Motor Assembly Replacement
1) Unhook the motor housing cover in the direction
of the arrow.
6
TROUBLE SHOOTING
1. SWITCH ON BUT MOTOR DOES NOT TURN
2. SWITCH ON, MOTOR DOES NOT TURN BUT BUZZES
CHECKING
CHECK THE POWER
SOURCE
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.
Motor armature cut. Exchange the motor.
Ball bearing defacement
Exchange the motor.
Impeller hindrance
(Caused by foreign matters)
Remove the foreign matters.
CAUSE SOLUTION
7
3. SWITCH OFF BUT MOTOR TURNS
4. WEAK SUCTION POWER
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.
Poor connection Repair.
Poor switch
Low rotation speed
Motor turns normally,
but suction power is weak.
Exchange the switch.
8
5. VIBRATION NOISES
6. RADIO, TV RECEPTION DISTURBANCE
7. IMPROPER TUBE OR NOZZLE CONNECTION
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.
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.
Bent connection parts Exchange the parts.
Poor connection
(Caused by foreign matters)
Remove the foreign matters
and reconnect.
Armature is cut or foreign
matters attached.
Exchange the motor
Remove foreign matters.
9
BLOCK DIAGRAM
(V-C7050NT)
SCHEMATIC DIAGRAM
(V-C7050NT)
PRESSURE S/W
POWER S/W CORD REEL ASS'Y
LED PWB ASM
MOTOR
PLUG
MAIN
PWB
ASM
GY
GY
BK GY
RD
BR BR
RD
BL
BL
T/P
M
C1
0.47µF
250V
C5
0.1µF
250V
C2
0.1µF
250V
R1
100
1/2W
C4
100GµF
16V
R6
10,1/2W
D1
1N4007
Q1
C3198
FLICKER
C3
OPTO-TRIAC
16
24
PRESSURE
S/W
LED1
6871FX3078
POWER S/W
ZD1
5.6V
R11
470
R7
3K
R9
470
R3
110K
R10
3.9K
1/2W
R2
33
1/2W
R4
33
1/2W
DIAC
T1
G
TRIAC
T2
R8
1K
+
T/P
POWER S/W
PRESSURE S/W
BR
GY
GY
BR
BK GY
RD
RD
BL
BL
LED PWB ASM
M
MAIN
PWB
ASM
T/P
CIRCUIT DIAGRAM (V-C7050NT)
10
BLOCK DIAGRAM (V-C7050HT)
SCHEMATIC DIAGRAM (V-C7050HT)
PRESSURE S/W
SLIDE VOLUME
HOSE
POWER S/W
LED PWB ASM
SUB
PWB
ASM
MAIN
PWB
ASM
BR BR
RD
RD
BL
BL
BK
GY
GY
GY
T/P
POWER
S/W
MOTOR
BD1
C1
0.47uF
/AC250
R1
470K
1/2W
R10-1
470K
1/2W
R16
1.5K
R12
5.6K
R13
1K
C4
2200uF
16V
Q3
C3198
C3
0.47uF
/100V
D6
1N4002
R11
390
IC2
R14
100
R9
100
R15
12K
S/VOL
R5
100
D5
1N4148
Q2
A1015
Q1
C3198
R7
13K
R6
18K
IC1
R4
11K
R3
470
1/2W
C2
0.1uF
630V
T2
T1
G
R1
100
1/2W
R2
330
1/2W
VR/
20K
R8
1K
LED1
M
+
TRANSTRANS
PRESSURE
S/W
PRESSURE
S/W
PHOTO-TRIACPHOTO-TRIAC
PHOTO-TRIACPHOTO-TRIAC
T/P
LED PWB ASM
SLIDE VOLUME
PRESSURE S/W
POWER S/W
SUB
PWB
ASM
MAIN
PWB
ASM
GY
BR BR
GY
M
T/P
CIRCUIT DIAGRAM (V-C7050HT)
11
BLOCK DIAGRAM
(V-C7070CT)
DISPLAY
PWB ASM
SUB
PWB
ASM
PRESSURE
S/W
DUST
SENSOR
PWB ASM
HOSE
PWB
ASM
DUST
SESM
PWB ASM
MAIN
PWB
ASM
RD
RD
BL
BL
T/P
12
CIRCUIT DIAGRAM
(V-C7070CT)
G
M
+
ST-7L
EL-7L
+
15
30
20
AVref
CST4.0M
X-TAL
19
1M
Xout
VSS
18
R8
Xin
VDD
R56
R2
330
470 1/2W
BD1
DF01M
R6
IC2
KIA78L05P
0.1uF
C5
O
C4
0.1uF
1000uF
C3
I
1N4002
D1
10K
1uF
KRC107M
Q3
470
R4
100K
R5
2
TLP762JF
4
1
IC1
6
R3
1/2W
250V
0.47uF
C1
TRANS
0.1uF
100
R1
630V
T1
T2
G
SM12JZ47
TRIAC
C2
13
GMS81504(T)
R40/INT0
RESET
KRC107M
BZ
470
R12
1K
R11
R55/BUZ
14
Q2
MICOM
MOTOR
16V
RBD
R9
470K
0.1uF
C6
Q1
C3198
R7
4.7K
0.01uF
C7
IC3
17
9
1%
1%
+5V
+12V
7042
25V
C13
0.1uF
470K 1/2W
R10 R10-1
470K 1/2W
1/2W
R65/AN5
R64/AN4
CN6
0.01uF
25V
2
1
CN7
0.1uF
10K
R24
C12
C10
10
10K
R23
11
R16
CN5
0.1uF
C20
30K
1%
2K
R17
R24
S/W4
R22
R23
S/W2
S/W3
4.3K
2.2K
R21
S/W1
11K
1.2K
10K
R25
R41
12
KRC107M
R44
6
Q4
KRC107M
R45
5
Q5
KRC107M
R46
4
Q6
2.7K
R13
1.5K
R14
1.0K
R15
1
2
3
4
CN1
PRESSURE S/W
CN2
KRC107M
R04
27
Q14
10
R34
KRC107M
Q13
10
R33
KRC107M
Q12
10
R32
KRC107M
Q11
10
R13
KRC107M
Q15
10
R31
KRC107M
Q16
10
R36
KRC107M
Q17
1
R37
R05
26
R06
25
R07
24
R03
28
R02
29
R01
1
A
CN8
BCDEFG
16V
C8
13
EXPLODED VIEW
152313
140561
249701
135507
146871
139204
252301
149741
146611
145103
333002
748382
135506
333003
139202
146811
239402
130401
148201
144411
149308
750063
235505
252311
235504
236601
14
150061
135509
135510
335503
136501
168711
168711
235501
140261
349701
135508
166012
249011
452002
250201
249701
168711
268712
268712
168711
135510
135509
268711
440361
468011
452003
435506
440361
468712
468711
452003
435506
V-C7070CT/CP
V-C7050NT
V-C7050NT/HT V-C7070CT/CP
V-C7050NT
V-C7050NT
V-C7050NT/HT V-C7070CT
268712
15
452151
652012
436501
449321
552491
652031
652032
652481
452151
449321
435501
16
452151
449321
435501
17
REPLACEMENT PARTS LIST
130401 Refer to appendix BASE, BODY
135506 3550FI3800A COVER, MOTOR HOUSING
135507 Refer to appendix COVER, CORD REEL
135508 Refer to appendix COVER, BODY SUB
135509 Refer to appendix BOARD, DISPLAY
135510
3550FI3805A
COVER, SENSOR
V-C7050NT/HT
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 CASTER, ASS'Y
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
LOCATION NO.
PART NO. DESCRIPTION APPLICATION REMARK
18
249011 4901FI3435B DAMPER, ASS'Y
249701 4970FI4724A SPRING, BUTTON
V-C7050NT
250201 Refer to appendix BUTTON, POWER SWITCH
252301 5231FI3758C FILTER ASS'Y, CLEAN
252311 5231FI3767A FILTER ASS'Y, EXHAUST
268712
6871FX3078A
PWB(PCB) ASS'Y, DISPLAY
V-C7050NT/HT
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
449321
4932FI2364D
CONNECTOR(MECH), HOSE ASM
V-C7050NT/HT
4932FI2723A
V-C7070CT/CP
452002 5200FI2480A PIPE, CONNECTOR
452003 Refer to appendix PIPE, CONNECTOR-H
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 PIPE ASS'Y, TELESCOPIC
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
LOCATION NO.
PART NO. DESCRIPTION APPLICATION REMARK
19
APPENDIX
1. THE TYPE OF POWER CORD & PARTS NUMBER
TYPE
A-1
S-1
C-2
C-1
B-3
4687FI1420X
TYPE OF PLUG
CORD REEL ASSY P/NO.(L/NO.146871)
17
12.7
19
19
4.8
19
19
4
17
6.3
Color identification
of fuse
Brown
Yellow
Blue
13A
5A
3A
20
2. COLOR & PARTS NUMBER
3. MOTOR & PWB ASS’Y PARTS NUMBER
PART NO. REMARK
LOCATION
NO.
DESCRIPTION
4681FI2451A VMC400E5, 230V/50Hz V-C7030NT
4681FI12457A VMC420E5, 230V/50Hz V-C7040TN/C7045HT
4681FI2456B VMC460E5, 220~230V/50Hz V-C7050NT/HT
4681FI2456D VMC460E8, 220~230V/50Hz V-C7070CT/CP
146811 MOTOR ASS'Y, VC
4681FI2456E VMC460E9, 240V/50Hz V-C7070CT/CP
240V/50Hz
110V/60Hz
120V/60Hz
PART NO. REMARK
LOCATION
NO.
DESCRIPTION
168711 PWB(PCB) ASS'Y, MAIN
6871FX2136A V-C7050NT
168711 PWB(PCB) ASS'Y, MAIN
6871FX2141A V-C7050HT/V-C7070CT
268711 PWB(PCB) ASS'Y, SUB
6871FX2142A V-C7050HT
6871FX2145A V-C7070CT
LOCATION NO.
DESCFIPTION
LIGHT SILVER
NOBLE DEEP BLUE
NOBLE RED YELLOW GREEN DEEP BLACK REMARK
130401 BASE BODY 3040FI1487B 3040FI1487B 3040FI1487E
135507 COVER, CORD REEL 3550FI1558B 3550FI1558B 3550FI1558E
135508 COVER, BODY SUB 3550FI1561B 3550FI1561B 3550FI1561E
135509 BOARD, DISPLAY 3500FI2240B 3500F22240B 3500F22243E
136501 HANDLE, CARRIER
3650FI1486B 3650FI1486B
V-C7050NT/HT
3651FI1309A 3651FI1309C
V-C7070CT/CP
140261 LATCH, COVER 4026FI3669B 4026FI3669A 4026FI3669D
140561 LOCKER, DUST CAP 4056FI3648D 4056FI3648D 4056FI3648D
145103 LEVER, CORD WINDING 4510FI3598B 4510FI3598B 4510FI3598E
146611 WHEEL, ASS'Y 4661FI3613B 4661FI3613B 4661FI3613E
148201 BUMPER, BODY 4820FI2391B 4820FI2391B 4820FI2391E
149308 HOLDER, PLUG 4930FI2448B 4930FI2448B 4930FI2448E
235501 COVER, BODY 3550FI1560B 3550F21560B 3550FI1560F
250201
BUTTON, POWER SWITCH
5020FI3771B 5020FI3771A 5020FI3771D
333002 PLATE, COVER(L) 3300FI3683B 3300FI3683B 3300FI3683E
333003 PLATE, COVER(R) 3300FI3684B 3300FI3684B 3300FI3684E
335503 COVER, ACCESSARY 3550FI1559B 3550FI1559B 3550FI1559D
435501 COVER, GRIP HANDLE 3550FI1553Q 3550FI1553Y
V-C7070CT/CP
452003 PIPE, CONNECTOR-H 5200FI1215B 5200FI1215B 5200FI1215K
452151 HOSE ASS'Y, FLEXIBLE
5215FI1319D 5215FI1319E
V-C7070CT
5215FI1315E 5215FI1315E
V-C7050NT
5215FI1320B 5215FI1320C 5215FI1320K
V-C7050HT
652012 P
IPE ASS'Y TELESCOPIC
5201FI1004A 5201FI2446D
5210FI2446D
748382 TANK, DUST 4838FI1397B 4838F21397B 4838FI1397D
750063 CAP, DUST 5006FI1327B 5006F21327B 5006FI1327E
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LG V-C7050HT User manual
- Category
- Vacuum cleaners
- Type
- User manual
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