LG 21FS2ALX User manual

COLOR TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : MC-049C
MODEL : 21FS2ALX/RG/RL/RLX
MODEL : 21FS2ALX/RG/RL/RLX-TC
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- 2 -
CONTENTS
Contents...................................................................................................................2
Safety Precautions..............................................................................................3
Control Descriptions..........................................................................................4
Specifications........................................................................................................7
Adjustment Instructions .................................................................................8
Trouble Shooting.................................................................................................12
Printed circuit board.........................................................................................16
Block Diagram ......................................................................................................18
Exploded View....................................................................................................20
Exploded View Parts List ..............................................................................21
Replacement Parts List .................................................................................22
SVC. Sheet..................................................................................................................
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- 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 with the same components as recommended in this manual to
prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
General Guidance
An isolation Transformer should always be used during
the servicing of a receiver whose chassis is not isolated from
the AC power line. Use a transformer of adequate power rating
as this protects the technician from accidents resulting in
personal injury from electrical shocks.
It will also protect the receiver and it's components from being
damaged by accidental shorts of the circuitry that may be
inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this TV receiver is blown,
replace it with the specified.
When replacing a high wattage resistor (Oxide Metal Film
Resistor, over 1W), keep the resistor 10mm away from PCB.
Keep wires away 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,
always 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 without 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 two AC plug prongs.
Place the AC switch in the on position, 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 between 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 below Figure)
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor
between a known good earth ground (Water Pipe, Conduit, etc.)
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC
voltmeter with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC
voltage measurements for each exposed metallic part. Any
voltage measured must not exceed 0.75 volt RMS which is
corresponds to 0.5mA.
In case any measurement is out of the limits specified, 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
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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. NUMBER BUTTONS
switches the set on from standby or directly select a number.
3. MENU (or INDEX)
selects a menu.
selects an index page in the teletext mode (only TELETEXT
models). (option)
4. EYE/*(option)
switches the eye function on or off.
5. DD/ EE(Programme Up/Down)
selects a programme or a menu item.
switches the set on from standby.
scans programmes automatically.
FF/ GG(Volume Up/Down)
adjusts the volume.
adjusts menu settings.
OK
accepts your selection or displays the current mode.
6. Q.VIEW
returns to the previously viewed programme.
7. TELETEXT BUTTONS (option)
These buttons are used for teletext.
For further details, see the ‘Teletext’ section.
8. PSM (Picture Status Memory)
recalls your preferred picture setting.
9. FAVOURITE
selects a favorite programme.
10. TURBO PICTURE / SOUND BUTTON (option)
selects Turbo picture and sound.
POWER MUTE
123
456
789
MENU/INDEX
TV/AV
TV
0
i
TEXT/MIX/ SIZE/ HOLD/
EYE/
Q.VIEW
LIST
I / II /
( )
PR
( )
PR
OK VOLVOL
UPDATE/
PSM SSM/ SLEEP/ M
X
TIME/ REVEAL/
?
PICTURE SOUND
/
TURBO/
FAVOURITE
1
2
3
4
5
6
8
10
9
11
12
13
14
15
17
16
(With TELETEXT)
7
- 4 -
DESCRIPTION OF CONTROLS
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- 5 -
POWER MUTE
1 2 3
4 5 6
7 8 9
MENU/INDEX
TV/AV
0
EYE/
Q.VIEW
LIST
I / II /
( )
PR
( )
PR
OK VOLVOL
PSM SSM/ SLEEP
PICTURE SOUND
/
TURBO/
FAVOURITE
TV
1
2
3
4
5
6
8
10
9
11. MUTE
switches the sound on or off.
12. TV/AV
selects TV or AV mode.
switches the set on from standby.
13. I/II/*(option)
selects the language during dual language broadcast. (option)
selects the sound output.
14. LIST
displays the programme table.
15. SLEEP
sets the sleep timer.
16. SSM/*(Sound Status Memory) (option)
recalls your preferred sound setting.
17. SURROUND (ºº/*) (option)
selects surround sound.
*: No function
COLOURED BUTTONS : These buttons are used for teletext (only
TELETEXT models) or programme edit.
11
12
13
14
15
17
16
(Without TELETEXT)
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Front panel
Side panel
1. MAIN POWER (ON/OFF)
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
Note : Only use the supplied remote control handset. (When you use others, they’ll be not able to
function.)
4. MENU
selects a menu.
5. OK
accepts your selection or displays the current mode.
FF/ GG(Volume Up/Down)
adjusts the volume.
adjusts menu settings.
DD/ EE(Programme Up/Down)
selects a programme or a menu item.
switches the set on from standby.
6. AUDIO/VIDEO IN SOCKETS (AV2) (option)
Connect the audio/video out sockets of external equipment to these sockets.
7. HEADPHONE SOCKET (option)
Connect the headphone plug to this socket.
Note : Shown is a simplified representation of front or side panel. Here shown may be somewhat dif-
ferent from your set.
VIDEO
L/MONO
R
AUDIO
AV2
7
6
21FS2 series
1 2 3 4 5
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SPECIFICATIONS
Note : Specification and others are subject to change without notice for improvement.
FScope
This specification can be applied to all the television related to
MC-049C Chassis.
FTest and Inspection Method
1) Capacity : Follow LG electronics TV testing Standard.
2) Another Required Standard
- EMI : Following CE Standard (EN55020, EN55013)
- Safety : Following CB Standard (EN55013)
FRequirement for Test
Testing for standard of each par must be followed in below
condition.
1) Temperature : 20 ±5°C
(But, CST must be tested 40 ±5°C . Humidity : 50%)
2) Relative Humidity : 65 ±10%
3) Power : Standard input Voltage (110-240V~, 50/60Hz)
4) Measurement must be performed after heat-run more than
20min.
5) Adjusting Standard for this chassis is followed a special
standard.
No
1
2
3
4
5
6
7
8
Item
Receiving System
Receiving Channel
Input Voltage
Market
Screen Size
Tuning System
Operating Environment
Storage Environment
Remark
For EU/ For Non EU
For EU/ For Non EU
NTSC-M (Multi - model)
Non EU
EU
Initial Model -> for EU
SUPER SLIM
200 PR. (OPTION)
Specification
1) PAL/SECAM BG
2) PAL/SECAM DK
3) PAL I/I
4) NTSC M
5) SECAM-L/L’
6) NTSC 4.43(AV)
1) VHF : E2 ~ E12
UHF : E21 ~ E69
CATV : S1 ~ S20
HYPER : S21 ~ S41
2) L/L’ : B,C,D
3) VHF : 02 ~ 13
UHF : 14~ 69
CATV : 02 ~ 71
110-240V~, 50/60Hz
240V~, 50Hz
EU,CIS, China, Asia, Africa
F 21”
FVS 100Program
1) Temp. : 0 ~ 45 deg
2) Humidity: 85% under
1) Temp. : -20 ~ 60 deg
2) Humidity: 85% under
FGeneral Specification
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1. Application Object
These instructions are applied to all of the color TV, MC-049C.
2. Notes
(1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolation
transformer will help protect test instrument.
(2) Adjustment must be done in the correct order.But the
adjustment can be changed by consideration of mass
production.
(3) The adjustment must be performed in the circumstance of
25±5°C of temperature and 65±10% of relative humidity if
there is no specific designation.
(4) The input AC voltage of the receiver must keep rating
voltage in adjusting.
(5) The receiver must be operated for about 15 minutes prior
to the adjustment.
3. Focus adjustment
3.1. Preliminary steps
Tune the TV set to receive a digital pattern.
(SVC mode:Automatically mode change the STANDARD
mode)
3.2. Adjustment Method
1) Single Focus CPT
Adjust the upper Focus volume of FBT for the best focus of
horizontal line A,vertical line B.
4. Screen voltage adjustment
(1) Receive the PAL or SECAM(NTSC) signal into RF mode
regardless of channel.
(2) If you press the “ADJ”button in LINE SVC mode(IN-START
button),the LINE SVC mode changes to screen adjustment
mode.
(3) Adjust the screen volume of FBT jack,When width line is
seen turn the FBT screen volume at the position of
disappearance it.
(4) Press the TV/AV button to exit SVC mode.
5. White balance adjustment
NOTE : When adjusting white balance automatically,connect the
adjustment JIG in SVC mode.(When pressing ,MUTE
button on remote control, it changes to CPU OFF MODE
and screen displays “AUTO”.)
(1) Receive 100% white pattern.
(2) Adjust LOW Light status(4.5FL) of CUT R, CUT B at CUT
G:80.
(3) Adjust HIGH LIght status(35FL) of WDR R, WDR B at
WDR G:400.
(4) Repeat above step (2) and (3) for the best condition each
status of High Light and Low Light.
ADJUSTMENT INSTRUCTIONS
AB
Menu
X
Y
Color Temperature
288
295
9000°K
266
273
13000°K
EU N-EU
<Table 1> White Balance Color analyzer
Menu
CUT R
CUT G
CUT B
WDR R
WDR G
WDR B
LOW LIGHT
HIGH LIGHT
0 ~ 511
0 ~ 511
0 ~ 511
0 ~ 511
0 ~ 511
0 ~ 511
80
80
80
400
400
400
Range DATA
<Table 2> White Balance Initial Data
Menu
<Fig 1. PAL Digital Pattern(EU05CH)>
2. White balance IIC Parameter
Program
Sub Add
Start Bit
Stop Bit
Offset
Polarity
EP_Rom_S
R_Amp
TWBeng_v049
1C8
12
4
0
1
9091
R_Cut
TWBeng_v049
1C3
12
4
0
1
8A8B
B_Amp
TWBeng_v049
1CA
12
4
0
1
9495
Program
Vcd Slave
TWBeng_v049
BCF0
Program
Eprom_Slave
TWBeng_v049
AC
Speed
1
Delay
30
B_Cut
TWBeng_v049
1C5
12
4
0
1
8E8F
Speed/ Plus 1 1 1 1
<Table 3> White Balance Initial Data
1. IC
VCD IC
EP_ROM
VCT49xyi
24C16
Micronas
ST, ATMEL 0 A 0
Name Maker Algorithm
- 8 -
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6.Sub-Brightness adjustment
6-1. Preparation for Adjustment
(1) Tune the TV set to receive an Digital pattern(EU05CH).
(2) Deflection setting data adjustment is operate by SVC
communicator.
(3) Enter the Sub-Brightness mode by selection SERVICE1 on
SERVICE MENU after pressing LINE SVC MODE(IN-
START KEY).
(4) Use the CH D,Ekey to select adjustment item.
(5) Use the VOL F,Gkey to increase/decrease data.
6.2 Adjustment
After authorizing a PAL signal, adjust up to the point which
divide one or two volume in Gray Scale of the bottom screen.
7.Deflection setting Data Adjustment
7.1 Adjustment preparation
(1) Tune the TV set to receive an Digital pattern(EU05CH).
(2) Deflection setting data adjustment is operate by SVC
communicator.
(3) Enter the deflection adjustment mode by selection
SERVICE1 on SERVICE MENU after pressing LINE SVC
MODE(IN-START KEY).
(4) Use the CH D,Ekey to select adjustment item.
(5) Use the VOL F,Gkey to increase/decrease data.
7.2 Adjustment
(1) After authorizing a PAL signal, adjust to N50ch .
(2) After adjusting a PAL signal, authorize and notify to
NTSC(US13ch), adjust NTSC if necessary.
* After finishing deflection adjustment,press the ENTER button to
enter or exit in SVC mode.
< Term explanation>
(1) VL(Vertical Linearity) adjustment:
Adjust the top & bottom size of inner circle to be equal.
(2) VA (Vertical Amplitude) adjustment:
Adjust so that the circle of a digital circle pattern should be
located interval of 6~7mm from the effective screen of the
CPT.
(3) SC (S correction) adjustment:
Adjust so that all distance between each lattice width of
top/center/bottom are to be the same.
* Setting the CPT Default(Initial data) value like that, because
it is decide by CPT DY value
(4) VS (Vertical Shift) adjustment:
Adjust so that the geometric vertical center line is in accord
with vertical center line of CPT.
(5) HS(Horizontal Shift) adjustment:
Adjust so that the geometric horizontal center line is in
accord with horizontal center line of CPT.
(6) EW(Hor. Width) adjustment
Adjust until the outmost left and right lattice of received
pattern is accord with 25% of other lattice width.
(7) ET(Trapezoidal) adjustment
Adjust to make the length of top horizontal line same with it
of the bottom horizontal line.
(8) EP(Pin Cushion) adjustment
Adjust so that middle portion of the outermost left and right
vertical line look like parallel with vertical lines of the CPT.
(9) ANGLE adjustment
When you adjust the angle, adjust correctly raster of
left/right screen.
(10) Bow adjustment
After finished EP adjustment, adjust until symmetrized
upper and lower corner of the screen.
(11) UPCOR/LOCOR(Upper/Lower Corner) adjustment
After finished EP adjustment,adjust vertical line of left-top,
right-top, left-bottom, right-bottom of screen to the best
straight line.
8. How to inspect condition of a transmission
and reception in FM TRANSMITTER
MODEL.
- FM TRANSMITTER's efficiency inspections is executed to a
finished in a final inspection phase.
-FM TRANSMITTER is a function which receives voice-signal
by an exclusive remote control and earphone, transmits a
FM through transmitter of inner part in MICOM BOARD to TV
sound(MONITOR OUTPUT)
- If the received frequency which set up in OSD is being tuned
without using an exclusive remote control ,it is available to
receive in a general FM receiver.
(1) Execute in channel generating voice-signal.
(2) Select a transmitted frequency in MENU OSD.
MENU -> SOUND -> TRANSMITTER
-> Select frequency(87.7MHZ)
(3) A received frequency in an exclusive remote control or
received FM Radio is tuned by 87.7MHz which is same as
frequency in OSD.
(4) Check out whether a signal generating to MAIN SPEAKER
generates in earphone or receiver or not.
(5) There is no alternation and setting of adjusted DATA in the
process of inspecting FM TX.
- 9 -
<CAUTION> W/B Program “Twbeng_v049”
- W/B adjustment after Cutoff
: Instart -> adj. -> mute(cutoff)-> tv/av(wb)
Release key is EXIT key
- W/B adjustment
: Instart -> mute(cpuoff)
Release key is TV/AV key
Menu
VS
VA
VL
SC
HS
-512~511
-512~511
-512~511
-512~511
32~2047
150
-12
140
6
100
140
-12
140
6
123
Variable range N50Hz(PAL)
FLAT 21” N60Hz(NTSC)
FLAT 21”
<Table 4> Initial value of deflection setting
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9. OPTION Adjustment
9-1. Preparation for Adjustment
1) This option adjustment decides function in accordance with
model. Press IN-START button on SVC communicator,
then adjust the option at OPTION1 mode.
2) Mark the option adjustment data like [111,111,111,111] in
BOM.
9-2. Adjustment Method
OPTION data input
1) Function : YES, No function : NO
2) Select each OPTION function by the CH Up/Down
button and then set up each OPTION(yes or no) by the
VOL Up/Down button.
9-3. OPTION 1
9-4. OPTION2
9-5. OPTION3
- 10 -
INCH
SYS
SOUND
CH+AU
Option Code
0
1
2
3
4
5
6
7
0
1
2
3
0
1
2
3
0
1
Function
21A
21B
21C
29F/25F
28WF/32WF
28N
34F
29N/25N
BG/I/DK
BG/I/DK/L
BG/I/DK/M
BG/L
RF STEREO
AV STEREO
MONO
MONO DUAL
No using
Using
AV2
DVD
SCART1
GAME
EYE
TX
KEY
DEGAU
Option Code
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Function
Without AV2
With AV2
Without DVD
With DVD
Without SCART
With SCART
Without GAME function
With GAME function
Without EYE
With EYE
With PIP
Without PIP
6,8 KEY
4 KEY
Without DEGAU
With DEGAU
TEXT
TOP
ACMS
I 2 SV
VOL
TSEAR
T P-S
HDEV
Option Code
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Function
Without TEXT (200PR)
With TEXT (100PR)
FLOP
TOP
Without ACMS
With ACMS
Without I 2 SV
With I 2 SV
VOL 0
VOL 1
Without TURBO SEARCH
With TURBO SEARCH
Without TURBO PICTURE/ SOUND
With TURBO PICTURE/ SOUND
Without HDEV
With HDEV
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- 11 -
9-6. OPTION4 9-7. OPTION5 Function
OSD L
TXT L
HOTEL
MAX V
Option Code
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
0
1
0~
100
Function
ENG ONLY
EU-5EA
EU ETC
GREECE
EU-ALL
FARSI
ARAB URDU
E+HINDI
E+I+M+V
E+THAI
E+CHINA
WEST EU
EAST EU1
TURKEY EU
EAST EU2
CYRILLIC1
CYRILLIC2
CYRILLIC3
TURK GRE1
TURK GRE2
TURK GRE3
ARAB FRA
ARAB ENG
ARAB HEB1
ARAB HEB2
FARS ENG
FARS FA
FARS ALL
AUTO
WITHOUT HDEV
WITH HDEV
SETTING VOL MAX
LNA
A2_ST
ECO
TILT
BOOST
2SCRT
CHINA
SSLIM
Option Code
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Function
Without LAN
With LAN
Without A2_ST
With A2_ST
Without SCART
With SCART
Without TILT
With TILT
Without BOOST
With BOOST
With 2SCRT
Without 2SCRT
Without CHINA
With CHINA
Without SSLIM CPT
With SSLIM CPT
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TROUBLE SHOOTING
- 12 -
RF- STEREO MODEL
Selected correct system
In menu
Check the waveform
IF 1 of TU101
Check the waveform
At pin 4, 5 of IC11
Check the waveform
At pin 6 of IC601
Check the waveform
At pin 2, 4 of IC601
Check the waveform
At pin 8,9,11,12 of IC601
Check the waveform
At pin 5,6 of IC601
Check / Replace Q601
Check The voltage
At pin of IC821, IC822, Q807
Check / Replace
C821, IC822, Q807
Check The Voltage
At pin 2,19,20,21,24 of IIC11
Check / Replace
TU 101
Check / Replace
F806, D828(D805)
OK
OK
OK
OK
OK
OK
NO
NO NO
NO
NO
NO
No Raster / Sound OK (1/ 2)
Check the
Heater voltage of CPT
(6~ 6.4Vrms)
Check
HV, Screen Voltage of
CPT
Check the
Heater pulse of FBT
T402
Check
R, G, B out of
CPT Board
Check
FBT T402 Check 185V line of CPT Board & if no problem
check and Replace
Check
IC901, P903A Check
RF901,P402
P402B,FR401
Check
FBT T402
PICTURE O.K / NO SOUND
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- 13 -
CHECK B+
At D829 cathode
Is the voltage at
each pinvolageof IC11 Check Fuse of AC line
OK
Check the
In/ out of
regulator
(IC821,IC822
IC823,IC824
IC825)
Check pin 60
Of IC11(H Out)
Check Q401
Collector waveform
Check Q402
Collector waveform
Check T401
& each pin voltage
Check & Replace
T402
Check the Voltage
Of C803
Check the Voltage
Pin 4 OF IC801
Check / Replace
IC801,IC802,IC826
Check Fuse and Diode of secondary
Load of SMPS trans(T803)
Check / Replace
IC11
Check &
Replace
IC11
Check &
Replace
Q402
Check &
Replace
T401
Check &
Replace
Q401
Check / Replace
Fuse
Check / Replace
DB801
Check / Replace
Fuse IC801
NO
OK
OK
OK
NO
Open
NO
18~20V
Normal
Yes
Yes
Yes
Yes
NO
NO
NO
NO
Abnormal
No Raster (2/ 2)
-
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- 14 -
NO Picture No Sound
Is Any OSD displayed?
Check IC11 pin71,72,73
(R,G,B out)
OK
Store on manual-program MENU
Does the auto Program
Operate properly
Check pin40(V out 1)
1Vp-pCheck 1 8V 3.3V 5V DC Voltage Check SMPS Trans Secondary Voltage
Check pin18
Reset Voltage Check IC13 (Reset IC)
Check pin57, 58
SCL, SDA Check IC12(EEPROM) & SCL SDA Line
RelaceIC11
Q501, Q503, Q504
(R, G, B out of IC11) Check / Replace CPT Board component
Go to
No Sound
Picture OK
OK
OK
OK
OK
NO
NO
NO NO
NO
NO
3 3V DC
OK
OK
3 3V DC
Check receiving system in MENU
& execute Auto Program.
-
-
/
,
,.
/
.
.
,
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- 15 -
AV STERRO / MONO MODEL
Select correct system
In menu
OK Check the connection
Of AV equipment
Check TU101 Tuner
Check the waveform
At pin4,5 of IC11
Check the waveform
At pin16, 17 of IC11
Check the voltage
Of pin2,19,20,21,24 of IC11
Check the signal line of
SPK- L,R
Check pin 55(mute)
of IC11
Check the waveform
At pin2,4 of IC601
Check the waveform
At pin6 of IC601
Check the waveform
At pin8,9,11,12 of IC601 Check thevpltage At pin7,5 of IC601 Check/ Replace D828,D805,F806
Check the connection of
side or Front AV Board
P603A
Replace IC601
AV
OK
OK
OK
OK
NO NO
OK
OK
NO
NO
NO
NO
Correct the Board
NO
OK
OK
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- 17 -
SIDE A/V
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BLOCK DIAGRAM
- 18 -
MICOM( IC 11 )
VCT49**
TUNER
(TU101)
AV-OUT
(JK202)
*SCART/ PHONE/DVD
FBT
(T402)
AUDIO AMP
( IC601)
RGB AMP
( TDA6107Q )
STR-W6754
(IC801)
AUDIO-OUT
RGB
HV SCREEN H/T
H-DRIVE
( Q401 )
VERTICAL AMP
(IC301)
TDA4863A
14V
-14V
VA
H-OUT
35V(H-Vcc/ TU-33V)
S-Vcc
6.5V 12V
B+
SAW FILTER
(Z101)
PIP_BOARD
( SDA9489X )
S1117-18
(IC825)
S1117-33
(IC853)
KIA78S06P
(IC824)
KA78R33
KA78R05C
ST-5V
ST-3.3V
ST-1.8V
3.3V
GAME HIC
(HIC01) 190V
VB
H-FLB
IIC
33V 5V
TV / MONITOROUT
SCART RGB-IN
Y/Cb/Cr-IN
AV-IN
H-Vcc
5V
S-Vcc
PIP-RGB
PIP-VIDEO
IIC
VS
H-FLB 5V
ST-5V
ON / OFF
DATA/CLOCK
RESET
VIDEO/AUDIO
190V
EW AMP
(IC302) 28V
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MEMO
- 19 -
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- 20 -
EXPLODED VIEW
112
913
170 150 153
943 400
300
520
P801
330
310
320 600
121
120
105
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105 4810900072A BRACKET, CRT 21FS2 SUPER SLIM MC049C HIPS 60HR LGESY LOCAL
4810V01114A BRACKET, CRT RZ-21FD70 MC049B ABS .
112 6334V21017A CPT, A51ERS420X 01 LG-PHILIPS DISPLAYS 16KHZ 21 INCH SUPER SLIM
6335921002A CPT ASSEMBLY, A51ERS420X L L(+0.50G) 0G SUPER SLIM, ITC
6335921002E CPT ASSEMBLY, A51ERS420X P P(+0.10G) 0G SUPER SLIM, ITC
120 6400VA0001A SPEAKER,FULLRANGE KK BUKDOO 8 OHM 5/12W 82 DB 110*50
121 4810900054A BRACKET, SPEAKER 21FC1 MC049B PP LGESY LOCAL
4810V01183A BRACKET, SPEAKER RP-21FX40 SC023A ABS LGERS
150 6140VC2007N COIL,DEGAUSSING 1UEW 0.60PIE 44TS 2500MM 11OHM 21INCH SUPER SLIM
153 6150V-1040A DY(DEFLECTION YOKE), 6150Z-9221A 21” LPDBJ 21 INCH SUPER SLIM DY
170 6858V21001A EARTH, 21” 64T 0 LUG BL101R RT-21FDRX
300 30919D0033D CABINET ASSEMBLY, 21FS2RLX BRAND 197A+171A SY CKD SY LOCAL
3091V00866A CABINET ASSEMBLY, 21FS2R MONO MC049C SUPER SLIM
3091V00866D CABINET ASSEMBLY, 21FS2RLX-TC NO BRAND MC049C SUPER SLIM
3091V00866L CABINET ASSEMBLY, 21FS2RK-LC MC049C SUPER SLIM KUMI-SY-LR
310 5020900067A BUTTON, CONTROL 21FS2 LGESY LOCAL ABS, HF-380 6KEY SUPER SLIM
5020V01127A BUTTON, CONTROL 21FS2R ABS, HF-380 6KEY SUPERSLIM
320 320-062H SPRING, COIL
330 5020900066A BUTTON, POWER 21FS2 LGESY LOCAL ABS, HF-380 1KEY SUPER SILM
5020V01126A BUTTON, POWER 21FS2R ABS, HF-380 1KEY SUPERSLIM
400 3809900167B BACK COVER ASSEMBLY, 21FS2RLX 1PHONE SUPER SLIM LGESY LOCAL
3809V00621A BACK COVER ASSEMBLY, 21FS2R 1PHONE SUPER SLIM
3809V00621D BACK COVER ASSEMBLY, 21FS2RLX-TC DVD(1PHONE) CIS SUPER SLIM
3809V00621E BACK COVER ASSEMBLY, 21FS2RLX-TC DVD(1PHONE) SUPER SLIM MC049C
3809V00621M BACK COVER ASSEMBLY21FS2RL-TC DVD(1PHONE) SUPER SLIM MC049C
520 68719MMU50E PWB(PCB) ASSEMBLY,MAIN M.I MC049C 21FS2ALX-TC QLRLLCU SY-LGERA
6871VMM987D PWB(PCB) ASSEMBLY,MAIN M.I MC049C 21FS2RG-TC AMALLA
6871VMM987F PWB(PCB) ASSEMBLY,MAIN M.I MC049C 21FS2RLX-TC ADRLLA M/I
6871VMM987J PWB(PCB) ASSEMBLY,MAIN m MIN M.I MC049C 21FS2RL-TC AMILLA M/I
68719MMA84A PWB(PCB) ASSEMBLY,MAIN M.I MC049C 21FS2RLX-TC KTMLLCT M/I
68719MMU50C PWB(PCB) ASSEMBLY,MAIN MC049C 21FS2RLX-TC KLRLLEY SY-MOSCOW
600 6871VSML92A PWB(PCB) ASSEMBLY,SUB A/V MC049C 21FD70 (LGESY) M/I
6871VSML98A PWB(PCB) ASSEMBLY,SUB A/V MC049C SIDE A/V(NON-EU) M/I
6871VSMSA1Q PWB(PCB) ASSEMBLY,SUB T.T MC049C RT-21FD70RX ADXLLAY SIDE AV
913 332-057B SCREW,DRAWING ASSY,HEXAGON HEAD
943 1PTF0403116 SCREW TAP TITE(P),TRUSS HEAD + D4.0 L16.0 MSWR3/FZB
P801 174-009Q POWER CORD, POWER(W/HOLD,HOUSING)L=300,4.0
6410VBH006B POWER CORD MP5004(13A) KUKJEA BSI 2400MM HOUSING(L1 300MM) BLACK
6410VEH001E POWER CORD, 174-009Q LGESY LOCAL VDE/SEMKO 2410MM 300 BLACK
- 21 -
EXPLODED VIEW PARTS LIST
LOCA. No. PART No. DESCRIPTIONS
The components identified by mark is
critical for safety.
Replace only with part number specified.
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