LG CF-21Q20EH User manual

COLOR TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : MC-014A
MODEL:RF-21FA20/Q/PQ
MODEL:CF-21Q20EH
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

- 2 -
CONTENTS
Contents ................................................................................................................. 2
Safety Precautions ............................................................................................3
Specifications ..................................................................................................... 4
Control Descriptions ........................................................................................ 5
Disassembly Instructions .............................................................................
Adjustment Instructions ............................................................................... 9
Trouble Shooting .............................................................................................. 12
Exploded View ............................................................................................ 16,1
Exploded View Parts List ........................................................................17,19
Replacement Parts List ............................................................................... 20
SVC. Sheet ................................................................................................................

- 3 -
SAFETY PRECAUTIONS
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in
the Schematic Diagram and Replacement Parts List.
It is essential that these special safety parts should be replaced ith the same components as recommended in this manual to
prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design ithout permission of manufacturer.
General Guidance
An lsolation Transformer should always be used during
the servicing of a receiver hose chassis is not isolated from
the AC po er line. Use a transformer of adequate po er rating
as this protects the technician from accidents resulting in
personal injury from electrical shocks.
It ill also protect the receiver and it's components from being
damaged by accidental shorts of the circuitary that may be
inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this TV receiver is blo n,
replace it ith the specified.
When replacing a high attage resistor (Oxide Metal Film
Resistor, over 1W), keep the resistor 10mm a ay from PCB.
Keep ires a ay from high voltage or high temperature parts.
Due to high vacuum and large surface area of picture tube,
extreme care should be used in handling the Picture Tube.
Do not lift the Picture tube by it's Neck.
X-RAY Radiation
Warning:
To determine the presence of high voltage, use an accurate
high impedance HV meter.
Adjust brightness, color, contrast controls to minimum.
Measure the high voltage.
The meter reading should indicate
23.5 ±1.5KV: 14-19 inch, 26 ±1.5KV: 19-21 inch,
29.0 ±1.5KV: 25-29 inch, 30.0 ±1.5KV: 32 inch
If the meter indication is out of tolerance, immediate service
and correction is required to prevent the possibility of
premature component failure.
Before returning the receiver to the customer,
al ays perform an AC leakage current check on the exposed
metallic parts of the cabinet, such as antennas, terminals, etc.,
to be sure the set is safe to operate ithout damage of
electrical shock.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source,
connect an electrical jumper across the t o AC plug prongs.
Place the AC s itch in the on positioin, connect one lead of
ohm-meter to the AC plug prongs tied together and touch other
ohm-meter lead in turn to each exposed metallic parts such as
antenna terminals, phone jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be bet een 1MΩ and 5.2MΩ.
When the exposed metal has no return path to the chassis the
reading must be infinite.
An other abnormality exists that must be corrected before the
receiver is returned to the customer.
Leakage Current Hot Check (See belo Figure)
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5K/10 att resistor in parallel ith a 0.15uF capacitor
bet een a kno n good earth ground (Water Pipe, Conduit, etc.)
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC
voltmeter ith 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC
voltage measurements for each esposed metallic part. Any
voltage measured must not exceed 0.75 volt RMS hich is
corresponds to 0.5mA.
In case any measurement is out of the limits sepcified, there is
possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.
Leakage Current Hot Check circuit
The source of X-RAY RADIATION in this TV receiver is the
High Voltage Section and the Picture Tube.
For continued X-RAY RADIATION protection, the
replacement tube must be the same type tube as specified in
the Replacement Parts List.
1.5 Kohm/10W
To Instrument's
exposed
METALLIC PARTS
Good Earth Ground
such as WATER PIPE,
CONDUIT etc.
AC Volt-meter
IMPORTANT SAFETY NOTICE
0.15uF

- 4 -
SPECIFICATIONS
Note : Specification and others are subject to change ithout notice for improvement.
OVideo input system:
PAL-B/G, D/K, I/I
SECAM-B/G, D/K
NTSC 4.43(AV)
OIntermediate Frequency (Unit : MHz)
VISION IF : 38.9MHz
COLOR IF : 34.47MHz(4.43)
35.32MHz(3.58) : NTSC-M
VIF-4.25000MHz
VIF-4.40625MHz
SOUND IF : 33.4MHz (B/G)
32.9MHz (I/I)
32.4MHz (D/K)
OPower requirement : 110~240V, 50/60Hz
OPower consumption : 95W
OCPT : True Flat CPT(Flatron)
OTuning system :
FVS
100 Programme memory
O Antenna input impedance : VHF/UHF 75 ohm, unbalanced
OOSD (On Screen Display) : WINDOW 3D Type
OVoice coil impedance : 8 ohm
OSound output : 10W+10W(Max 12W+12W)
Dual/Stereo : AV Stereo
OExternal connection :
Head Phone Jack
A/V in :1 pair
A/V in/out
OExternal In/Output
Audio-In:0.5Vrms±3db,over 10Kohm
Audio-Out:0.5Vrms±3db,below 1Kohm
Video-In/Out:1Vp-p±3db,75ohm
OFeature : Auto programme/Manual programme
Digital Eye
Digital Comb Filter
Auto Sleep
Dynamic Focus(Option)
Programme Editing
PSM (Picture Status Memory)
CTI
Turbo Search, Picture & Sound
ACMS
ARC (Zoom 1, 16:9↔4:3)
2 TUNER PIP(Double Windo PIP)-Option
OTuning range
Band
VHF-Lo
VHF-High
Hyper
UHF
S1'-S3', S1
S2-S10,
S11-S20
S21-S41
For TV For CATV
B/G
Ch2-4
Ch5-12
D/K
Ch1-5
Ch6-12
I/I
Ch4-13
Ch21-69
(): SECAM
Front or
Side
Back

- 5 -
DESCRIPTION OF CONTROLS
All the functions can be controlled with the remote control handset.
Some functions can also be adjusted with the buttons on the front
panel of the set.
Remote control handset
Before you use the remote control handset, please install the bat-
teries. See the next page.
1. POWER
switches the set on from standby or off to standby.
2. MUTE
switches the sound on or off.
3. ARC (Aspect Ratio Control)
changes the picture format.
4. TV/AV
selects TV or AV mode.
clears the menu / text from the screen.
switches the set on from standby.
5. EYE/*(option)
switches the eye function on or off.
6. TURBO PICTURE / SOUND BUTTON
selects Turbo picture / sound.
7. DD / EE(Programme Up/Down)
selects a programme or a menu item.
switches the set on from standby.
FF / GG (Volume Up/Down)
adjusts the volume.
adjusts menu settings.
OK
accepts your selection or displays the current mode.
8. NUMBER BUTTONS
switches the set on from standby or directly select a number.
9. PSM (Picture Status Memory)
recalls your preferred picture setting.
10. SSM (Sound Status Memory)
recalls your preferred sound setting.
11. VCR BUTTONS (option)
control a LG video cassette recorder.
LISTI/II
MENU
ARC
PIP/
TV/AV
PICTURE
SOUND
123
456
789
PSM
PLAY
REC REW P/STILL FF
STOP
0
SSM
POWER
MUTE
OK
S
I
Z
E
S
T
I
L
L
P
O
S
I
T
I
O
N
9
/
4
P
I
P
SLEEP
PR SWAP
INPUT
VOL
PR
PR
VOL
PR
EYE/
T
U
R
B
O
1
2
3
5
4
6
8
7
9
10
11
(With / Without PIP)
12
13
14
17
16
15

- 6 -
12. I/II
selects the language during dual language broadcast (option).
selects the sound output.
13. LIST
displays the programme table.
14. PIP BUTTONS (option)
PIP/*
switches the sub picture on or off.
PR +/ -
selects a programme for the sub picture.
SWAP
alternates between main and sub picture.
INPUT
selects the input mode for the sub picture.
SIZE
adjusts the sub picture size.
STILL
freezes motion of the sub picture.
POSITION
relocates the sub picture in clockwise direction.
9/4 PIP
switches on or off the programme scan mode through 9 or 4
sub pictures.
15. MENU
selects a menu.
16. SWAP or Q.VIEW
returns to the previously viewed programme.
17. SLEEP
sets the sleep timer.
COLOURED BUTTONS
These buttons are used for teletext (only TELETEXT models) or
programme edit.
Battery installation
The remote control handset is powered by two AAA type batteries.
To load the batteries, turn the remote control handset over and
open the battery compartment. Install two batteries as indicated by
the polarity symbols ( and ) marked inside the compartment.
Note : To avoid damage from possible battery leakage, remove the
batteries if you do not plan to use the remote control handset for an
extended period of time.
+
-
(Without PIP)
POWER
MUTE
13
2
46
5
79
8
TV/AV MENU
PR
PR
SSM
EYE PSM ARC
Q.VIEW SLEEP LIST
VOL VOL
OK
0
SOUND
I/II
PICTURE
T
U
R
B
O
6
1
12
2
8
4
7
10
5
16
17
15
3
13
9

- 7 -
Front panel
1. MAIN POWER
switches the set on or off.
2. POWER/STANDBY INDICATOR
illuminates brightly when the set is in standby mode.
dims when the set is switched on.
3. REMOTE CONTROL SENSOR
4. MENU
selects a menu.
5. TV/AV
selects TV or AV mode.
clears the menu from the screen.
switches the set on from standby.
6. (Function)
selects volume, EYE (option), picture items or brief auto pro-
gramme while the menus not display.
7. OK
accepts your selection or displays the current mode.
DD / EE(Programme Up/Down)
selects a programme or a menu item.
switches the set on from standby.
FF / GG (Volume Down/Up)
adjusts the volume.
adjusts menu settings.
8. +/- (DD/EE)
adjusts the function or selects a programme.
switches the set on from standby.
9. AUDIO/VIDEO IN SOCKETS (AV2)
Connect the audio/video out sockets of external equipment to
these sockets.
10.HEADPHONE SOCKET (option)
Connect the headphone plug to this socket.
11.EYE (option)
adjusts picture according to the surrounding conditions.
VIDEO TV/AV
VOL PR
AUDIO
AV 2
L/MONO R
POWER
1 10 9 5 6 8 2 3 11
MENU
ON/Off
OK VOL PR
1 2 3 4 7 11
VIDEO L/MONO AUDIO R
AV2
10
9
RF-21FA20 series
CT-21Q21 series

- 8 -
Fig. 2-1
Fig. 2-2
CPT
board
Remove
Screws
PIP
PCB
Main PCB
MPX PCB
DISASSEMBLY INSTRUCTIONS
Important note
This set is disconnected from the po er supply through the
converter transformer. An isolating transformer is necessary
for service operations on the primary side of the converter
transformer.
Back Cabinet Removal
Remove the scre s residing on the back cabinet and carefully
separate the back cabinet from the front cabinet. (Fig. 2-1).
Chassis Assy Removal
Grasp both side of Frame and pull it back ard smoothly.
Speaker Assy Removal
1. Remove P1651 and P1652 connector from Main2 (Po er/Def./
Sound-Amp) Board.
2. Remove respective 6 scre s for speaker on the front
cabinet. (Fig. 2-2).
CPT Removal
1. Pull out the CPT board from the CPT neck.
2. Place the front cabinet on soft material not to mar the front
surface or damage control knobs.
3. Remove 4 scre s securing the picture tube mounting
brackets to the front cabinet.
4. Carefully separate CPT from the front cabinet.
PICTURE TUBE HANDLING CAUTION
Due to high vacuum and large surface area of picture tube, great
care must be exercised hen handling picture tube. Al ays lift
picture tube by grasping it firmly around faceplate.
NEVER LIFT TUBE BY ITS NECK! The picture tube must not be
scratched or subjected to excessive pressure as fracture of
glass may result in an implosion of considerable violence hich
can cause personal injury or property damage.
IF PCB
Super
W oofer
PCB

- 9 -
X Safety Precautions
1. It is safe to adjust after using insulating transformer between
the power supply line and chassis input to prevent the risk of
electric shock and protect the instrument.
2. Never disconnect leads while the TV receiver is on.
3. Don't short any portion of circuits while power is on.
4. The adjustment must be done by the correct appliances.
5. Unless otherwise noted, set the line voltage to 230Vac!10%,
50Hz.
6. The adjustment of TVshould be performed after warming up
for 15 minutes.
X Test Equipment required
1. RF signal generator (with pattern generator)
2. Multimeter (volt meter)
3. Color analyzer
O RF AGC (Automatic Gain Control) Adjustment
1) Input PAL-B/G 05 CH.
2) Connect Multimeter to TP(J1),AGC adjustment point.
3) Adjust AGC data in SVC mode until the voltage of Multimeter
becomes 2.3!0.1V.
O Screen Voltage Adjustment
1) Tune the RF Modulator to receive a PAL or SECAM signal.
2) Press MIX button on remote controller for Service to get into
the Screen Adjust Mode.
3) Adhere the Color Analyzer on the White window of CPT
face.
4) Adjust Screen Volume of FBT so that the luminance of White
window is 50!1 FL(171 cd).
O Focus Adjustment
1) Tune the TV set to receive a digital pattern.
2) Adjust the upper Focus volume of FBT for the best focus of
vertical line B.
3) Adjust the lower Focus volume of FBT for the best focus of
area A.
4) Repeat above step 2) and 3) for the best overall focus.
O Deflection Data Adjustment (Line SVC-2)
NOTE : How to enter into the Line Service Mode with a remocon.
1.Power off.
2.Press the Red button.
3.Press the Green button.
4.Press the Yellow button.
5.Press the Cyan button.
6.Press the OK button.
7.Power On.
1. Preparation for Deflection Adjustment
1) Tune the TV set to receive a PAL B/G Digital pattern.
2) At SVC mode, press the Yellow colored buttonon the SVC
remocon.
And then,deflection data adjustment OSD(SVC2 mode) will
be displayed.
3) Press Channel UP/DOWN button for desirous function
Adjustment.
4) Press Volume UP/DOWN button to adjust the data.
VL (Vertical Linearity)
Adjust so that the boundary line bet een upper and lo er half
is in accord ith geometric horizontal center of the CPT.
VA (Vertical Amplitude)
Adjust so that the circle of a digital circle pattern may be
located ithin the effective screen of the CPT.
SC (Vertical “S” Correction)
Adjust so that all distance bet een each horizontal lines are
to be the same.
VS (Vertical Shift)
Adjust so that the horizontal center line of a digital circle
pattern is in accord ith geometric horizontal center of the
CPT.
HS (Horizontal Shift)
Adjust so that the vertical center line of a digital circle pattern
is in accord ith geometric vertical center of the CPT.
ADJUSTMENT INSTRUCTIONS
Test Point : AGC TP(J1)
Adjust : AGC Data(Line SVC-1)
Test Point : CPT Face
Adjust : Screen Control of FBT
Test Point : Observing Display
Adjust : Focus control of FBT
b
AB
Fig. 1

- 10 -
EW (Horizontal Width)
Adjust to that a digital circle pattern looks like exact circle.
EP (East-west Parabolar)
Adjust so that middle portion of the outermost left and right
vertical line looks like parallel ith vertical lines of the CPT.
EC (East-west Coner)
Adjust so that the vertical line at every 4 corners of the
screen looks like parallel ith the vertical lines of the CPT.
ET (East-west Trapezium)
Adjust to make the length of top horizontal line same ith
it of the bottom horizontal line.
(Table 1)
OWhite Balance Adjustment.(LINE SVC 1)
NOTE : This adjustment should be performed after screen
voltage adjustment.
1) Tune the TV set to receive an 100% white pattern.
2) Press the Yellow button on remote controller in the SVC
Mode.
3) Press PSM (RED) button on remote controller. (Standard
picture)
4) Press PR+ or PR- button for desirous function adjustment.
5) Adjust Low Light status of CR and CB with VOL+ or VOL-
at CG:50 until X=268!8,Y=273!8.
6) Adjust High Light status of RG and BG with VOL+ or VOL-
at CG:370 until X=268!8,Y=273!8.
7) Repeat above step 5) and 6) until each status of High Light
and Low Light.
Initial Data List (PAL)
VA
VL
SC
VS
HS
EW
ET
EP
ES
EC
POP P
Vertical Amplitude
Vertical Lineality
S-Correction
Vertical Shift
Horizontal Shift
East-West Width
East-West Trapezim
East-West Parabola
East-West Symmet
East-West Corner
POP Position
00B0
0000
00D3
0771
0010
0BB5
0800
07CF
07BB
0820
000C
CPT
LG 21” FLAT 4.5!1 FL 43!1 FL
LOW LIGHT HIGH LIGHT
CR
CG
CB
RG
GG
BG
Cufoff Red
Cufoff Green
Cufoff Blued
Drive Red
Drive Red
Drive Red
0050
0050
0050
0370
0370
0370
Average ADJ. Data List
DVCO
IBRM
WDRM
BCLTH
BCLTM
BCLGA
BCLMI
SVGA
SVDEL
SVD1
LDLY
HBST
HBSO
Digital VCO
Black Current
White Current
BCL Thershold
BCL Time
BCL Gain
BCL
SVM Gain
SVM Delay
SVM Delay 1
LUMI Delay
H START Point
H END Point
XXXX
00C8
0190
0037
000B
000A
0000
0032
0004
0004
0000
00F0
0150
ABL Data (SERVICE 3)
FP
NP
SP
S1 VOL
S2 VOL
FM Prescaler
NICAM Prescaler
SCART Prescaler
SCART1 Volume
SCART2 Volume
0012
0045
001A
0045
0045
Sound Pre-Scaler (SERVICE-4)

OOPTION Adjustment
1.OPTION 1 Function
2.OPTION 2 Function
- 11 -
0
1
0
1
0
1
0
1
0
1
0
1
H-PH
KEY
TILT
EYE
GAME
YUV/W
Option Code Function Remark
NO YUV/W
YUV/S-WOOFER
CC GAME
GAME
Without EYE
EYE
Without TILT
With TILT
Without H.Phone
With H.Phone
6 KEY
4 KEY
0
1
0
1
0
1
0
1
0
1
0
1
0
1
ACMS
TURBO
TBS
C/AGC
TOP
TEXT
AV2
SCART
Option Code Function Remark
Without SCART
With SCART
Without REAR AV2
With REAR AV2
Without TEXT
With TEXT
Without TOP TEXT
With TOP TEXT
NO Channel Name Display
Channel Name Display
Without TURBO Function
With TURBO Function
Without TURBO BOOSTER
With TURBO BOOSTER
Cable Band AGC ADJ
0
1
0
1
0
1
0
1
0
1
0
1
0
1
2
3
MONO
VOL
SYS
A2/ST
DUAL
CH+AU
200PR
Option Code Function Remark
Rear AV2 Option
Except China & Australia
China & Australia
NO 200PR Option
With 200PR Option
China+Australia Option
With Hotel TV Option
NO I/II Save
I/II Save
Without A2 ST
With A2 ST
BG/I/DK
Forced MONO Option
Normal Curve
Rushed Curve
BG/I/DK
BG/I/DK/L
BG/DK/M
Reserved
3.OPTION 3 Function

Trouble Shooting
- 12 -
Check pin31 of IC01
Check the voltage of C402(+) Check the voltage at
pin2 of FBT
Check the H-Out voltage
at pin24 of IC01
Check & Replace
F854,D861,R405,R423
Check the voltage
at pin2 of FBT
Check & Replace
IC01,FR403,R413,
D405,D406,IC301,
IC01
Check the voltage of C804(+)
Check & Replace
SW1111,F1111,T801
D862,866,867,868
Check & Replace
T802, R809, D802.
Z18V
Check & Replace
Q401, Q402, T401.
110 V
33V
Check & Replace
D850, L853, T402.
Check the voltage at
pin 54 of IC01.
3.3V 0V
Check & Replace
IC853(3), FR406,
D408,D858,Q856
Check & Replace
Q05, IC851, IC802(3), IC856
No Power ON(SMPS working)
No Power(Not working SMPS)
130~380V 0V
0V
Check the voltage
at pin4 of STR
Check & Replace
IC801 and the
secondary section
High Low(=0V)
0V
0V
NORMAL NO
Check & Replace
FR403,FR413,D405,D406
Check & Replace
IC01
Check the voltage
at pin1,6 of IC301
Check the waveform
at pin35 of IC01
Check & Replace
IC301,D301
No Vertical Deflection
0V +14V,-14V
No Yes

- 13 -
Check the heater element
Check & Replace
FR401
Check & Replace
CPT
Check the Heater voltage
Increase the screen
Voltage of FBT
Screen is BlackRetrace line
is visible
Check FBT & CPT
socket & CPT
Check the waveform
at pin21 of IC01
Check the waveform at
pin42~44 of IC01
Check the waveform
at pin14 of IC141
Check & Replace
ICN01
Check & Replace
IC141
Check & Replace
IC01
Check & Replace
CPT PCB Assy
NG
6.0~6.4Vrms0V
Normal
Normal No
Abnormal
Normal Normal
No
Check & Replace
IC01
Check & Replace
FR402,D404,IC302
Check the waveform at
pin36 of IC01
Check the waveform
at pin1 of IC302
Check the waveform
at R406
Check & Replace
Q302,Q303
Check & Replace
D401,D402,C405
Barrel Distortion
No Yes
No Yes
No Yes

- 14 -
Check the voltage at
pin10 of IC601(Sound Amp)
Check & Replace
F851,FB853,D850
Check the waveform
at pin24,25 of ICN01
Check the voltage
at pin8 of IC601
Check & Replace
Q601,IC01
Check & Replace
IC601,QN01-02,P605(6)A
Check the waveform
at pin47 of ICN01
Check & Replace
XN01,ICN01
Check the waveform
at pin12 of IC141
Check & Replace
IC01
Check & Replace
Z102,IC141
5V0V
Check the waveform
at pin21,22 of ICN01
Check the waveform
at pin1,3 of ICN02
Check & Replace
ICN02
Check & Replace
P605(6)A,H/P Jack
Check & Replace
ICN01
No Sound(Picture OK)
No Sound from H/P Jack(Option)
(Main Sound OK)
0V 32V
Yes No
No
NORMAL
Abnormal
Normal
No Normal
No
NORMAL

- 15 -
Check the voltage at
pin9 of Tuner(33V)
Check & Replace
F854,D861,R103,ZD101
Check the voltage at
pin7 of Tuner(5V)
Check & Replace
L102,Tuner
Check the waveform at
pin14 of IC141(CVBS)
Check & Replace
Z101,IC141
Check the waveform at
pin21 of IC01(CVBS In)
Check & Replace
ICN01
Check & Replace
IC01,IC141
Is there video signal at
pin13 of ICN101
Check & Replace
ICN101 & IIC Bus
Is there video signal at
pin28 of ICP101?
Check pin15~18
of ICP01
Check CP131
Check & Replace
ICP01 & IIC Bus
Check pin27~30
of IC01
Check RP11~14
,CP15~18
Check & Replace
IC01
'
7
Don t Catch Channel
No PIP
0V 33V
0V5V
No Yes
Abnormal
Normal
Normal
Abnormal
No
Yes
Yes
No

913
170 150 153
112
520
P801
530
560
600
700
330 320
310
120
300
123
943
400
550
510
540
EXPLODED VIEW:21FA20
- 16 -

- 17 -
EXPLODED VIEW PARTS LIST
LOCA. NO PART NO DESCRIPTIONS
104 343-B52A SUPPORTER,PCB
112 2426GDB30AI CPT SET,A51QDJ279X 17K7NI
2426GDB30AZ CPT SET,A51QDJ279X 00M7NI
120 120-C77G SPEAKER,GENERAL C122P02K1459 8 OHM 1
123 6401VA0011B SPEAKER ASSY,WOOFER
150 150-D02X COIL,DEGAUSSING CU 21”60TURN 12 OHM
170 170-A01P CPT EARTH 21”64T
300 3091V00323B CABINET ASSY
3091V00323D CABINET ASSY N.ALLIED
310 5020V00498A BUTTON,CONTROL 6KEY
320 320-062E SPRING,KNOB
330 5020V00499A BUTTON,POWER
400 3809V00241B BACK COVER ASSY(A/V+COMPON)
3809V00241C BACK COVER ASSY(W/O COMPON)
510 6871VSM941A PWB ASSY,CPT(014A)21”FCD 8,LGEIL
6871VSM941D PWB ASSY,CPT(014A)21”N-A
520 6871VMM725B PWB ASSY,MAIN (014A)21FA20PQ 8,IL
6871VMM725L PWB ASSY,MAIN (014A)21FA20PQ,N.ALLIED
6871VMM725C PWB ASSY,MAIN (014A)21FA20Q 8,IL
6871VMM725D PWB ASSY,MAIN (014A)21FA20 8,IL
530 6871VSM943A PWB ASSY,MPX(014A)
6871VSM943B PWB ASSY,MPX(014A)FA20PQ 8-IL
540 6871VSM942A PWB ASSY,PIP(014A)Q20 8,LGEIL
550 6871VSM945A PWB ASSY,IF(014A) 8,LGEIL
560 6871VSM944C PWB ASSY,WOOFER
600 6871VSM944B PWB ASSY,FA20 SIDE AV LGEIL
6871VSM944G PWB ASSY,FA20 SIDE AV N.ALLIED
700 0IGL120104A IC,CDS SENSOR MODULE(P1201-04)
913 332-057B SCREW ASSY,HEXAGON HEAD
943 1PTF0403116 SCREW,TAP TITE(P) D4.0 L16.0
P801 174-009U CORD,POWER(W/HOLD,HOUSING)L=350,4.0
The components identified by mark is
critical for safety.
Replace only with part number specified.

- 18 -
913
170 150 153
112
400
943
560
120
124
123
300
700
330 315
320
310
P801
520
530
550
540
EXPLODED VIEW:21Q20

- 19 -
EXPLODED VIEW PARTS LIST
LOCA. NO PART NO DESCRIPTIONS
112 2426GDB3804 CPT SET,A51QDJ279X 17K7NI
120 120-D38C SPEAKER,8 OHM 15/25W
123 6401VA0011B SPEAKER ASSY,WOOFER
124 120-D18C SPEAKER,WOOFER C100R54K1452 8 OHM 20/3
150 150-D02X COIL,DEGAUSSING CU 21”60TURN 12 OHM
170 170-A01P CPT EARTH 21”64T
300 3091V00274F CABINET ASSY
310 5020V00340A BUTTON,CONTROL 4KEY
320 320-070G SPRING,COIL
330 5020V00337B BUTTON,POWER
400 3809V00154X BACK COVER ASSY
510 6871VSM941A PWB ASSY,CPT(014A)21”FCD 8,LGEIL
520 6871VMM725A PWB ASSY,MAIN (014A)21Q20EH
530 6871VSM943A PWB ASSY,MPX(014A)
540 6871VSM942A PWB ASSY,PIP(014A)Q20 8,LGEIL
550 6871VSM945A PWB ASSY,IF(014A) 8,LGEIL
560 6871VSM944A PWB ASSY,CONTROL
600 6871VSM944A PWB ASSY,Q20 SIDE AV LGEIL
700 0IGL120104A IC,CDS SENSOR MODULE(P1201-04)
913 332-057B SCREW ASSY,HEXAGON HEAD
943 1PTF0403116 SCREW,TAP TITE(P) D4.0 L16.0
P801 174-009Q CORD,POWER
The components identified by mark is
critical for safety.
Replace only with part number specified.

- 20 -
REPLACEMENT PARTS LIST
LOCA. NO PART NO DESCRIPTION
D858
D861
D862
D863
D864
D865
D866
D867
D868
D901
D902
D903
D904
D1604
D1650
D1651
LD01
ZDN01
ZD02
ZD03
ZD101
ZD121
ZD301
ZD302
ZD303
ZD401
ZD501
ZD851
ZD901
Q01
Q02
Q03
Q04
Q05
Q151
Q201
Q301
Q303
Q401
Q403
Q501
Q503
Q506
Q507
Q508
Q509
Q601
Q854
Q855
Q856
Q901
0DD200009AH
0DD060009AC
0DD110009DB
0DD414809ED
0DD414809ED
0DD414809ED
0DD110009DB
0DD110009DB
0DD110009DB
0DD414809ED
0DD414809ED
0DD414809ED
0DR140049AC
0DS113379BA
0DS113379BA
0DS113379BA
4930V00047A
0DZ820009BF
0DZ510009AB
0DZ510009AB
0DZ330009BA
0DZ330009BA
0DZ180009BE
0DZ510009AB
0DZ180009BE
0DZ510009AB
0DZ510009AB
0DZ510009AB
0DZ180009BE
0TR945009AA
0TR733009AA
0TR945009AA
0TR945009AA
0TR401000CB
0TR387500AA
0TR733009AA
0TR945009AA
0TR127409AB
0TR249900AA
0TR233109AA
0TR945009AA
0TR945009AA
0TR733009AA
0TR733009AA
0TR733009AA
0TR945009AA
0TR733009AA
0TR102009AB
0TR102409AB
0TR945009AA
0TR126609AA
DIODE,RECTIFIER RU2AMV(1) TP
DIODE,TVR06J 0.6A/600V 250NS
DIODE,RECTIFIER RM11CV(1) TP
DIODE,1N4148 TA
DIODE,1N4148 TA
DIODE,1N4148 TA
DIODE,RECTIFIER RM11CV(1) TP
DIODE,RECTIFIER RM11CV(1) TP
DIODE,RECTIFIER RM11CV(1) TP
DIODE,1N4148 TA
DIODE,1N4148 TA
DIODE,1N4148 TA
DIODE,RECTIFIER IN4004A
DIODE,SWITCHING 1SS133 T-72 TP ROHM
DIODE,SWITCHING 1SS133 T-72 TP ROHM
DIODE,SWITCHING 1SS133 T-72 TP ROHM
HOLDER,LED
DIODE,ZENER GDZJ8.2B TP GRANDE DO34 0.5W
DIODE,ZENER MTZ5.1B TP ROHM-K
DIODE,ZENER MTZ5.1B TP ROHM-K
DIODE,ZENER HZT33(TP) HITACHI
DIODE,ZENER HZT33(TP) HITACHI
DIODE,ZENER GDZJ18B TP GRANDE DO34 0.5W
DIODE,ZENER MTZ5.1B TP ROHM-K
DIODE,ZENER GDZJ18B TP GRANDE DO34 0.5W
DIODE,ZENER MTZ5.1B TP ROHM-K
DIODE,ZENER MTZ5.1B TP ROHM-K
DIODE,ZENER MTZ5.1B TP ROHM-K
DIODE,ZENER GDZJ18B TP GRANDE DO34 0.5W
TR,KSC945C-Y TP SAMSUNG
TR,KSA733C-Y TP SAMSUNG TO-92
TR,KSC945C-Y TP SAMSUNG
TR,KSC945C-Y TP SAMSUNG
TR,KSD401-Y,SS BK SAMSUNG - -
TR,CHIP 2SC3875S(ALY) KEC
TR,KSA733C-Y TP SAMSUNG TO-92
TR,KSC945C-Y TP SAMSUNG
TR,KTA1274-Y TO-92L TP KEC
TR,2SD2499 TO-3P(H)IS TOSHIBA
TR,KSC2331-Y TP SAMSUNG TO-92L
TR,KSC945C-Y TP SAMSUNG
TR,KSC945C-Y TP SAMSUNG
TR,KSA733C-Y TP SAMSUNG TO-92
TR,KSA733C-Y TP SAMSUNG TO-92
TR,KSA733C-Y TP SAMSUNG TO-92
TR,KSC945C-Y TP SAMSUNG
TR,KSA733C-Y TP SAMSUNG TO-92
TR,KRC102M,TP(KRC1202),KEC
TR,KTA1024-Y (KTA949) TP KEC
TR,KSC945C-Y TP SAMSUNG
TR,KTA1266-TP-Y (KTA1015) KEC
LOCA. NO PART NO DESCRIPTION
HIC01
“
ICN01
ICP01
ICP02
ICN02
IC01
D850
IC03
ICN03
ICN05
IC05
IC06
IC07
IC09
ICN101
IC141
IC301
IC601
IC302
IC801
IC802
IC803
IC851
IC853
IC855
IC856
IC901
IC1610
D101
D301
D302
D401
D403
D404
D405
D406
D408
D410
D412
D501
D503
D505
D506
D601
D602
D603
D802
D803
D804
0IZZVF0017B
0IZZVF0017C
0IIT346000A
0ISM948900A
0ISG111733B
0ISG282200A
0IZZVC0011B
0ISK100300A
0IAL241610B
0IKE780500Q
0IFA753307A
0ISS278050A
0ISG111733B
0IFA752700A
0IFA752700A
0ISO204000A
0IMCRPH008A
0ISA784070A
0ISA428200A
0IKE455800E
0ISK665413A
0ILI817000G
0ILI817000G
0ISS780500J
0ISH092100B
0ISS278050A
0ISK110000A
0ISG510900A
0ISA428200A
0DD414809ED
0DD150009CE
0DD414809ED
0DD410000AC
0DD150009CA
0DD060009AC
0DR150009AB
0DR150009AB
0DD060009AC
0DD300009AC
0DD414809ED
0DD414809ED
0DD414809ED
0DD414809ED
0DD414809ED
0DD414809ED
0DD414809ED
0DS113379BA
0DD100009AM
0DD100009AM
0DD414809ED
IC,GAME MODULE
IC,GAME MODULE
IC,MSP3460G 52PIN DIP ST SOUND
IC,SDA9489 28PIN SOP TP PIP
IC,LD1117V33C 3SIP ST REGULATOR
IC,TDA2822M 8D DUAL AUDIO AMP(1W)
IC,VCT3804 64PIN DIP BK CKD(014A)
IC,SLA1003 SIP12 BK DIODE MODULE(
IC,AT24C16-10PC-2.7 8PIN DIP ST E
IC,KIA7805API 3P TO-220 ST REGULA
IC,KA75330ZTA(KA7533ZTA) 3P,TO-92
IC,KA278R05 4P
IC,LD1117V33C 3SIP ST REGULATOR
IC,KA75270Z 3 TP RE-SET IC MC-007
IC,KA75270Z 3 TP RE-SET IC MC-007
IC,CXA2040AQ 32P,QFP BK IIC BUS V
IC,TDA9885T PHILIPS 24P R/TP VIF
IC,LA7840 7S VERTICAL
IC,LA4282 12S 2CHX10W AUDIO AMP
IC,KIA4558 8DIP DUAL OP AMP
IC,STR-F6654(LF1352) 5P,SIP BK ST
IC,LTV817M-VB 4P,DIP BK PHOTO COU
IC,LTV817M-VB 4P,DIP BK PHOTO COU
IC,KA78L05AZ TO-92 TP 5V REGULATO
IC,PQ09RD21 4SIP ST REGULATOR
IC,KA278R05 4P,TO-220F BK LOW DRO
IC,SE110N(LF12) 3P 110V ERROR AMP
IC,STV5109 15SIP ST RGB DRIVE
IC,LA4282 12S 2CHX10W AUDIO AMP
DIODE,1N4148 TA
DIODE,RECTIFIER GP15J TP (1.5A/600V)
DIODE,1N4148 TA
DIODE,RECTIFIER RU4DS,LF-L1
DIODE,RECTIFIER RGP15J,TP(52MM)
DIODE,TVR06J 0.6A/600V 250NS
DIODE,RECTIFIER RGP15G TP
DIODE,RECTIFIER RGP15G TP
DIODE,TVR06J 0.6A/600V 250NS
DIODE,RECTIFIER RU3AMV(1) TP
DIODE,1N4148 TA
DIODE,1N4148 TA
DIODE,1N4148 TA
DIODE,1N4148 TA
DIODE,1N4148 TA
DIODE,1N4148 TA
DIODE,1N4148 TA
DIODE,SWITCHING 1SS133 T-72
DIODE,RECTIFIER EU1ZV(1) TP
DIODE,RECTIFIER EU1ZV(1) TP
DIODE,1N4148 TA
IC
DIODE
The components identified by mark are
critical for safety.
Replace only with part number specified.
TRANSISTOR