LG V-4300D User manual

M
K
VACUUM CLEANER
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.
MODELS : V-4300D/T/HT/CT,
V-4350D/T/HT/CT,
V-4300DV/TV/HTV/CTV,
V-4350DV/TV/HTV/CTV,
V-6353TV, V-6354HTV, V-6377CTV

SAFETY PRECAUTIONS .......................................................................................................................... 3
CAUTIONS................................................................................................................................................. 3
DESCRIPTION........................................................................................................................................... 4
SPECIFICATIONS...................................................................................................................................... 4
DISASSEMBLY....................................................................................................................................... 5-6
TROUBLE SHOOTING........................................................................................................................... 7-9
SCHEMATIC DIAGRAM .......................................................................................................................... 10
PRINTED CIRCUIT BOARD............................................................................................................... 11-13
EXPLODED VIEW .............................................................................................................................. 14-17
REPLACEMENT PARTS LIST ........................................................................................................... 18-19
APPENDIX.......................................................................................................................................... 20-22
1. THE TYPE OF POWER CORD & PARTS NUMBER ........................................................................ 20
2. COLOR & PARTS NUMBER............................................................................................................. 21
3. MOTOR & PWB ASS’Y PARTS NUMBER ........................................................................................ 22
CONTENTS
- 2 -

1. Filter
1) The filter is composed of a motor safety filter, a exhaust
filter and a paper bag or a cloth bag.
2) Never use the vacuum cleaner without filters.
It may harm the motor.
3) When the cloth bag, the motor safety filter and the
exhaust filter are soiled, wash the filter with neutral
cleanser.
NOTE : Re-use of the cloth bag, motor safety filter.
ƒUNever wash the filter in a washing machine or in a
dishwasher.
ƒUNever use hot water for washing the filter.
ƒURe-use the filter after drying it completely in the shade.
ƒUDo not dry near fire or direct sun ray.
2. Dust indicator
When the dust bag is full of dust, the indicator turns to red
(Suction power will be reduced). Then, change the paper
bag with the new one or clean the cloth bag.
4. Avoid sucking 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 or glass
particles etc.
5. Attachments
• Nozzle : for cleaning wooden floor, the room floor and
carpet.
• Crevice Tool : for cleaning any crevice, inside corners of
window frames. (However, do not use the
crevice tool more than 20 minutes.)
• Dusting Brush : for delicate vacuuming of fabrics on the
furniture, curtains, etc.
• Upholstery Nozzle : for vacuuming the dust on the
upholstery.
6. 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.
7. Air exhausted from the vacuum cleaner is
normally warm. But if extraordinarily hot air is
exhausted, check if the telescopic tube, hose
or dust bag is clogged or not.
8. Electric shock could occur if used outdoors or
on wet surfaces.
SAFETY PRECAUTIONS
- 3 -
BEFORE OPERATING THIS VACUUM CLEANER, READ THIS SERVICE MANUAL THOROUGHLY, AND
OBSERVE EACH POINT CAREFULLY.
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.
CAUTIONS
BEFORE ATTEMPTING TO SERVICE OR ADJUST ANY PART OF THE VACUUM CLEANER, DISCONNECT THE
ELECTRICAL POWER SUPPLY CORD FROM THE WALL OUTLET.

SPECIFICATIONS
• MODEL : REFER TO THE COVER PAGE
• POWER SOURCE : ON RATING PLATE
• POWER CONSUMPTION : ON RATING PLATE
• POWER CONTROL :
-MAIN : SLIDE CONTROL ON BODY COVER
(V-4300D/T/DV/TV, V-4350D/T/DV/TV, V-6353TV)
SLIDE CONTROL ON HANDLE
(V-4300HT/HTV, V-4350HT/HTV, V-6354HTV)
MICOM
(V-4300CT/CTV, V-4350CT/CTV, V-6377CTV)
CAPACITY : 5.3 L/ 6 L
• CORD LENGTH : 6 m
• NET WEIGHT : 7.4 kg
• PACKING WEIGHT : 8.5 kg
• NET DIMENSION : 305
× 522 × 235 (W × D × H)mm
• PACKING DIMENSION :
358 × 577 × 370 (W × D × H)mm
• ATTACHMENTS
HOSE ......................................................................... 1EA
STEEL PIPE ASS’Y.................................................... 2EA
TELESCOPIC PIPE ASS’Y........................................ 1EA
NOZZLE ASS’Y...........................................................1EA
CREVICE TOOL......................................................... 1EA
DUSTING BRUSH...................................................... 1EA
UPHOLSTERY NOZZLE ............................................ 1EA
CLOTH BAG ASS’Y(OPTION).....................................1EA
EXTRA PAPER BAG ASS’Y(PAPER, OPTION)..........1EA
• This specifications are subject to change according to the
buyer's request.
DESCRIPTION
- 4 -
CANISTER
Dust Indicator
Cord Reel
Button
Universal Nozzle
ASS'Y
Carpet Pedal
Nozzle ASS'Y
Telescopic Pipe
ASS'Y
Telescopic Pipe
ASS'Y
Flexible Hose ASS'Y
Steel Pipe ASS'Y
Filter cover
Wheel
Switch Button
(ON/OFF)
Power Cord
DUSTING BRUSH UPHOLSTERY NOZZLE
CLOTH BAG ASS'Y
(OPTION) FILTER BAG ASS'Y (OPTION)
QUILT NOZZLE ASS'Y
(OPTION)
CREVICE TOOL
ATTACHMENTS

• Almost all the parts of this vacuum cleaner can be
assembled 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) Grasp carrying handle and open filter cover by lifting
latch.
2) Open the filter cover and remove the two screws
fastening the body base in the direction of arrow.
3) Lift body cover in the direction of the arrow.
4) Strip off the lead wires from the push switch and others.
2. Filter cover assembly replacement
1) Push the hinge side by inserting flat screw driver in
crack between hinge and body cover.
DISASSEMBLY
- 5 -
NOTE: Before attempting to service or adjust any part of the vacuum cleaner, disconnect the electrical power supply cord
from the wall outlet.
Filter Cover
Set Latch
Carrying
Handle
Push Switch
Hinge

3. Push Switch Assembly Replacement
1) Push the s/w button hook in the direction of the arrow.
2) Push the push switch down grasping the wings of push
switch by long nose.
4. PWB Assembly Replacement.
1) Push the hook carefully and take out the control cover.
2) Remove the two screws fastening the P.W.B Ass’y on the
body cover.
2) When reassembling, assemble after sliding the lever of
PWB Ass’y and control knob to the left side.
5. Motor Assembly Replacement
• Lift the motor assembly in direction of the arrow after
stripping off the lead wires. (V-4300CT/HT/T)
• Push the hook side by inserting flat screw driver in the
direction of the arrow in case of motor case.
6. Cord Reel Assembly Replacement
• Lift the cord reel assembly from the body base in direction
of the arrow.
- 6 -
Push Switch
Long Nose
Cord Reel
Button
Motor ASS'Y
Cord Reel ASS'Y
Lever
Control Knob
(For V-4300D/T/DV/TV, V-4350D/T/DV/TV, V-6353TV)

TROUBLE SHOOTING
- 7 -
1. SWITCH ON BUT MOTOR DOES NOT TURN
2. SWITCH ON, MOTOR DOES NOT TURN BUT BUZZES
Checking Cause Solution
Check the power
source
The fuse is melt down in the
coverknife switch
Poor plug insertion
Power cord cut
Motor(stator armature) coil
cut or damaged
Poor contact carbon
brush defaced
Poor switch contact point
Motor armature cut
Ball bearing defacement
Impeller hindrance
(Caused by foreign matters)
Exchange the motor
Exchange the motor
Remove the foreign
matters
Exchange the fuse
Insert again
Repair or exchange
Interior lead wire cut Exchange the lead wire
Exchange the motor
Exchange or repair
Exchange the switch
Normal
Abnormal

- 8 -
4. WEAK SUCTION POWER
3. SWITCH OFF BUT MOTOR TURNS
Poor connection
Poor switch
Repair
Exchange the switch
Carbon brush defaced
Motor armature cut
Exchange the motor
Exchange the motor
Foreign matters attached to
the impeller
Remove the foreign
matters
Low voltage Inquire to the Power utility
company
Low rotation speed
Hose and extension wands
are clogged with foreign
matters
Remove the foreign
matters in the hose or
extension wands
Motor turns normally,
but suction power is
weak
Filter bag or cloth bag is filled
with inhaled foreign matters
The slide knob on the handle
is opened
Remove the foreign
matters or exchange the
filter bag or clean the cloth
bag
Close the slide knob by
sliding it

- 9 -
5. VIBRATION NOISES
6. RADIO, TV RECEPTION DISTURBANCE
7. IMPROPER HOSE OR NOZZLE CONNECTION
Loose parts
Unbalanced motor assembly
Foreign matters are attached
to the impeller
Poor rectification of carbon brush
Armature is cut or foreign matters
attached
Secure firmly
Exchange or repair the motor
Remove the foreign matters
Exchange the motor
Exchange motor
Remove foreign matters
Poor cord, lead wire
Poor rectification of carbon brush
Poor electric connector or
receiver
Poor capacitor
Exchange cord, lead wire
Exchange the the motor
Repair the electric connector or
receiver
Exchange the capacitor
Bent connection parts
Poor connection
(Caused by foreign matters)
Exchange the parts
Remove the foreign matters
and reconnect

1. V-4300D/T/DV/TV, V-4350D/T/DV/TV, V-6353TV
2. V-4300HT/HTV, V-4350HT/HTV, V-6354HTV
3. V-4300CT/CTV, V-4350CT/CTV, V-6377CTV
- 10 -
SCHEMATIC DIAGRAM
OPTION
BL BR
BL
P.W.B
BR S/W TS
BR
PLUG
CORD
REEL
ASS'Y
BK
GY
VR1
OPTION
BL BR
BL
P.W.B
BR S/W TS BR
PLUG
CORD
REEL
ASS'Y
BL BR
CN8-1
CN5
CN5-1 CN5-2
CN6-1
BL RD
CN6
CN7
BL
RD
P.W.B
P.W.B
(Main)
CN8
BR
BL
CORD
REEL
ASS'Y
PLUG
S/W T/S
GY BL RD BL
OPTION

1. V-4300D/T/DV/TV, V-4350D/T/DV/TV, V-6353TV
PRINTED CIRCUIT BOARD
- 11 -
TS
OPTION
R5
2
SLIDE VOLUME
VR1
R3
3.9K
1/2W
R2
33
1/2W
R4
33
1/2W
R1
100
1/2W
C3
DIAC
TRIAC
GT1
T2
VR2
S/W
1
C1 0.1uF 630V
C2 0.1uF /50V
C3 0.047uF 250V
C5 0.47uF /100V
C6 2200uF 16V
C4 0.47uF /AC250 TRANS
Q1 C3198
Q2 A1015
D5 1N4148
R1 100 1/2W
R2 220 1/2W
ZD1 47V 1/4W
D6
1N4002 R13
390
R14
3K
R16
100
Q3
C3198
R17
12K
R15
1K
R11 11K
R7 13K
R6 18K
R10 100
R9 100
R8 1K
MOTOR
1N4002x4
R12
470K R12-1
470K
R5 2M
D2D1 D4D3
S/W
TS
VR1 20K
VR1
R4 470 1/2W
R3 360 1/2W
TRIAC
T1 T2
G
6IC1
OPTO-TRIAC
MOC3052TV
4
1 2
M
6
IC2
OPTO-TRIAC MOC3052TV
4
1
2
OPTION
OPTION
OPTION
2. V-4300HT/HTV, V-4350HT/HTV, V-6354HTV

- 12 -
IC1
R20 R31 R30 D4
VCC2 GND
GND
VCC1 SEN2 SEN1 SIN1
SIN2 SOT1 SOT2
OUT1
OUT2
DOUT
DAI4 DAI3 DAI2 DAI1 INT1 IOUT
C13
0.1µF
RESET
R15 1M
13
R14 2K 1% C12 0.1µF
CN5
LED6
S/W1 R18 10
S/W2 R19 640 1%
S/W3 R20 2K 1%
S/W4 R21 6.4K 1%
R22 2M
CN6
ST-7L
IC5 EL-7L
CN7
R17 270
R16 33K
C11 0.1µF
C10 101
12 27
1
D1
IC4 IO
G
++ +
R7 3K
R1
330 1/2W
ZNR2
14D471K
R2
470 1/2W
SS
BD1
DF01M
P-TRANS
230V/50HZ
R23 1M
ZNR1
14D471K
IN4002
2 3 4 55
6 7 8 18
RESET
DO/INTO
CN3
R6 390
C16 0.1µF
23
6 7 8 9
10
20 19 18 17 16 15 14 13 12 11
R21 R22 R23
1 IC2 2
6 4G T1
TRIAC
SM12JZ47
MOTOR
C2
0.1µF
630V
R3
100
1/2W
T2
TLP560J
24D1
R00 R01 R02 R32 R33
D2 D5
VCC
GND
TEST/VPP
19 20 21 14 15 25 28 16
11 17
C6
0.1µFC14
220µF
6.3V
C15
1000µF
6.3V
C7
1000µF
25V
C4
0.47µF
250V
C5
0.1µF
C1
0.047µF
630V
C3
0.1µF
R4
200
C17
0.01µF
HD404342
(HD4074344S)
M
CN3-1
LED1 R10
R11 R12
1 2 3
LED2 LED3 LED4
R10 510
R9
510
5 6 7 8 9
CN8-1
AUTO MAX MIN
LED 7 R11 510 25 D2
OPTION
IC3
R8 1M 10
X-TAL
CST4.0M
9OSC1
OSC2
26
1 2
4
3KIA78L05P SW
TS
1 2 1 2
1
21
2
C9 0.01µF
Q1
KRC107M
R5 75K
C8
0.01µF
Q2
KRC107M
OPTION
3. V-4300CT/CTV, V-4350CT/CTV

- 13 -
7 8 9 6 5
1 1
2
3 1 2
1 2
1
2
3
4
+ –
SS
M
MAX LED1 CN3-1 1
BOOSTER LED2 2
AUTO LED3
LED4
3
R10 R11 R12
R10 510
R9
510 CN8-1
IC1
13 12
R31 R30
IC3
X-TAL
CST4.0M
R8
1M
9
10
OSC1 OSC2
TEST/VPP 17
GND
RESET
D0/INT0
D3 D1
R00 R01 R02 R32 R33
D2 D5
VCC
26 24 19 20 21 14 15 25 28 16 18 23 11 C16
0.1µF
R13 470K
C7 1µF 25V
IC6
O I
G
7042P
CN8-1
C6 0.1µFC18
100µF 6.3V
+
O I
IC4
G
KIA78L05P
C5
0.1µF
c17
0.01µF
C9 0.01µFR7
3K
CN3 Q1
KRC107M 2 4
16
IC2
MOC3052
Q2
KRC107M R5
5.1K C8 0.01µF
D1
1N4002
+C3
470µF 25V
R24
470K DF01M
BD1 P-TRANS
R23
470K
ZNR1
14D47K C4
0.47µF 250V
230V/50Hz
R3 100 1/2W C2 0.1µF 630V
TRIAC SM12JZ47
T1 T2
G
R4 200
R1
470 1/2W
R6 390
R27 1K
R26 1.5K
R27 2.7K
Q5
KRC107M
Q4
KRC107M
Q3
KRC107M
R30
10K
27
5 6 7
R22 R21 R20 D4
R12 510 R14
2K 1%
C12 0.1µFR16
33K
C14 100µF /6.3V
+R29
10K R33
1M
R34 100
78
4+
–5
6
R31 91K R32 39K
D2
1N4148
R35 1M R36
82K
C11 0.1µF
12
3
–
+
IC5
GL358
C15 0.1µFR37
100K
C10 101
CN5-1 CN5-2
ST-7L EL-7L
CN7
CN6
LED6
MAX S/W2 R18 10
AUTO S/W1 R19 640 1%
BOOSTER S/W3 R20 2K 1%
OFF S/W4 R21 6.4K 1%
R22 2M
HD404342
(HD4074344S)
MOTOR
3. V-6377CTV

144411
146601
135501
152311
152312
146871
130401
149601
139201
152301
149301
149305
135512
139202
136611
139205
146811
139204
131111
146811
139204
152302
EXPLODED VIEW
- 14 -

- 15 -
249401
235502
168711
235502
340261
435506
650581
339201 652481
652031
335503
352361
335501
335211
250201
252311
235503
235501
266011
340361
335502
250202
343501
368011
235502
268712
168711
252311
168711

- 16 -
452151
452151
452151
435501
435505
444801
435504
435501
436501 435505
444801
435504
452001
435505
452141
435504
444801
452003
444801

- 17 -
652012
652011
552493 552491
533003
435503
552001

REPLACEMENT PARTS LIST
- 18 -
130401 BASE, BODY 3040FI1463A
146601 WHEEL 4660FI2403A
135501 COVER, HANDLE 3550FI1480A
149601 MOUNT, BAG 3500FI2238D
144411 CASTER ASS’Y 4441FI3605A
152312 FILTER ASS’Y, CLOTH 5231FI2444A OPTION
152311 FILTER ASS’Y, PAPER 5230FI2255B OPTION
139201 PACKING, DUST SEAL 3920FI1278A
152301 FILTER(MECH), MOTOR SAFETY 5231FI4518E
146871 CORD REEL ASS’Y Refer To Appendix
149305 HOLDER 4930FI2441A LOWER
149301 HOLDER 4930FI2442A UPPER
146811 MOTOR ASS’Y, VC Refer To Appendix
139202 PACKING, MOTOR MOUNTING 3920FI2405A V-4300D/T/DV/TV,
139204 PACKING, SEAL 3920FI3737A V-4300HT/HTV/CT/CTV,
152302 PACKING, ABSORBING 4I23008B V-6377CTV
136611 HOUSING ASS’Y(MECH), MOTOR 3661FI3713A V-4350D/T/DV/TV,
131111 CASE ASS’Y, MOTOR 3111FI3714A V-4350HT/HTV/CT/CTV,
139205 PACKING, MOTOR 3920FI4648A V-6354HTV, V-6353TV
139204 PACKING, SEAL 3920FI3638A
135512 COVER ASS’Y, SOUND 3551FI2418B
235501 COVER, BODY 3550FI1482A
335501 COVER, FILTER 3550FI1481A ALL MODELS (EXCEPT V-6377CTV)
3550FI1481B V-6377CTV (ONLY)
335503 COVER, ACCESSORY Refer To Appendix
250202 BUTTON, CORD REEL Refer To Appendix
250201 BUTTON, POWER SWITCH Refer To Appendix
266011 SWITCH ASS’Y PUSH 6601FI3149A 220V/230V/240V
6601FI3149B 110V/120V/127V
340261 LATCH Refer To Appendix
435506 COVER, TERMINAL 3550FI1484A
235502 COVER, CONTROL Refer To Appendix
249401 KNOB, CONTROL 4940FI4657A V-4300(50)D/T/DV/TV, V-6353TV
168711 PWB(PCB) ASS’Y, MAIN Refer To Appendix
268712 PWB(PCB) ASS’Y, DISPLAY 6871FX2104A V-4350CT(V), 230V/50Hz
6871FX2104B V-4350CT(V), 240V/50Hz
6871FX2104C V-6377CTV
352361 INLET, HOSE 5236FI2385A V-4300D/T/DV/TV,
343501 RING, GUIDE 4350FI3664A V-4350D/T/DV/TV, V-6353TV
368011 TERMINAL ASS’Y, BASE 6801FI1441C V-4300HT/HTV, V-4350HT/HTV
V-6353HTV
6801FI1414F V-4300CT/CTV, V-4350CT/CTV
V-6377CTV
339201 PACKING, FILTER 3920FI3733A
335211 INDICATOR ASS’Y 3521FI3696C V-6377CTV
3521FI3696B V-4300CT/CTV, V-4350CT/CTV
L/NO. DESCRIPTION APPLICATION
P/NO.

- 19 -
335211 INDICATOR ASS’Y 3521FI3696A V-4300(50)D/T/DV/TV/HT/HTV,
V-6353TV, V-6354HTV
340361 SEAL, INDICATOR 4036FI4074A
335502 COVER, WIRE 3550FI3762A
652481 NOZZLE, UPHOLSTERY 5248FI2259A
652031 BRUSH ASS’Y, DUST 5201FI3474A
650581 TOOL, CREVICE 5058FI3462A
252311 FILTER ASS’Y, EXHAUST 5231FI4709A
V-4300D/T/DV/TV, V-4300HT/HTV,
V-4300CT/CTV
5231FI3751A
V-4350D/T/DV/TV, V-4350HT/HTV,
V-4350CT/CTV, V-6353TV, V-6354HTV,
V-6377CTV
235503 COVER, EXHAUST FILTER Refer To Appendix
452151 HOSE ASS’Y, FLEXIBLE 5215FI1305C V-4300(50)D/T/DV/TV,
452001 HANDLE, GRIP 3650FI1471A V-6353TV
452003 PIPE, FITTING 4932FI2268E
452141 CONNECTOR, HOSE 4932FI2361B
435504 COVER, PIPE(FITTING-L) 3550FI2092B
435505 COVER, PIPE(FITTING-R) 3550FI2095B
444801 HOOK, CONNECTOR 4480FI4231B
452151 HOSE ASS’Y, FLEXIBLE 1I20071F V-4300HT/HTV
1I20071Q V-4350HT/HTV, V-6354HTV(ENGLISH)
1I20071R V-4350HT/HTV(GERMAN)
435501 COVER, GRIP HANDLE 1I20045E V-4300(50)HT/HTV,
435504 COVER, PIPE(FITTING-L) 2I22015H V-6354HTV
435505 COVER, PIPE(FITTING-R) 2I22014H
444802 HOOK, FITTING 4I22028H
542151 HOSE ASS’Y, FLEXIBLE 5214FI1344A V-4300(50)CT/CTV
5214FI1344C V-6377CTV
436501 HANDLE, GRIP 3650FI9001A V-4300(20)CT/CTV,
435501 COVER, GRIP HANDLE 3550FI1184C V-6377CTV
435504 COVER, PIPE(FITTING-L) 5200FI2288A
435505 COVER, PIPE(FITTING-R) 5200FI2287A
444801 HOOK, FITTING 4I22028A
652011 PIPE ASS’Y, STEEL 5201FI2324A V-4300(50)D/DV
652012 PIPE ASS’Y, TELESCOPIC 5201FI2182B V-4300(50)T/TV, V-6353TV
5201FI2181C V-4300(50)HT/HTV/CT/CTV,
V-6354HTV, V-6377CTV
552491 NOZZLE ASS’Y, FLOOR 5249FI2253A NZ-10
5249FI2393A NZ-12
5249FI1387A NZ-15
5249FI1388A NZ-16
5249FI1389A NZ-17
5249FI2182A NZ-5
552493 NOZZLE ASS’Y, FLOOR 5249FI1390C NZ-14(BLACK)
5249FI1390E NZ-14(BLUE + BLACK)
5249FI1390F NZ-14(BLUE + GRAY)
L/NO. DESCRIPTION APPLICATION
P/NO.

APPENDIX
- 20 -
19
19
4.8
17
6.3
12.7
1719
19
4
A-1
S-1
C-2
C-1
B-3
4687FI1420C
4687FI1420F
4687FI1420E
4687FI1420D
4687FI1420H
(CCEE) 4687FI1420J
(UL, CSA) 4687FI1420G
Color identification
of fuse
Brown 13A
Yellow 5A
Blue 3A
TYPE TYPE OF PLUG CORD REEL ASS’Y P/NO.(L/NO.146871)
1. THE TYPE OF POWER CORD & PARTS NUMBER