LG LB500K-GL User manual

MENU
AUTO/SELECT
COLOR MONITOR
SERVICE MANUAL
Website:http://biz.LGservice.com
E-mail:http://www.LGEservice.com/techsup.html
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS NO. : CL-32
FACTORY MODEL: LB500K
MODEL: L1510S (LB500K-GL)
*( ) ID LABEL MODEL No.
L1510S (LB500K-GU)

CONTENTS
SPECIFICATIONS
- 2 -
1. LCD CHARACTERISTICS
Type : TFT XGA LCD Module
Size : 352.0(H) x 263.5(V) x 14.0(T)
Pixel Pitch : 0.297mm x 0.297mm
Color Depth :
6bits(with FRC)/ 16M colors (LPL Module)
: 6bits / 262,144 colors ( AUO Module)
Active Video Area : 15.0inch
(304.128 x 228.096)
Surface Treatment : Anti-Glare, Hard Coating (3H)
Backlight Unit : Top/Bottom edge side 2CCFL
Electrical Interface : LVDS interface (LG Philips Module)
: TTL interface (
AUO Module)
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio
≥ 10
(LG Philips Module)
Left : 55° min. Right : 55° min.
Top : 40° min. Bottom : 40° min.
(AUO Module)
Left : 50° min. Right : 50° min.
Top : 30° min. Bottom : 50° min.
2-2. Luminance
:
200(min.), 250(typ.) at Center point (LG Philips Module)
: 150(min.), 180(typ.) at Center point ( AUO Module)
2-3. Contrast Ratio :250(min.), 350(typ.) (LPL, AUO Module)
3. SIGNAL (Refer to the Timing Chart)
3-1. Sync Signal
1) Type : Separate Sync. (Horizontal & Vertical)
2) Input Voltage Level: Low=0~0.8V, High=2.1~5.5V
3) Sync Polarity : Positive or Negative
3-2. Video Input Signal
1) Type : R, G, B Analog
2) Voltage Level : 0~0.714 V
a) Color 0, 0 : 0 Vp-p
b) Color 7, 0 : 0.467 Vp-p
c) Color 15, 0 : 0.714 Vp-p
3) Input Impedance : 75 Ω
3-3. Operating Frequency
Horizontal : 30 ~ 63kHz
Vertical : 56 ~ 75Hz
4. POWER SUPPLY
4-1. Power
100~240V, 50/60Hz 0.6A
4-2. Power Consumption
5. ENVIRONMENT
5-1. Operating Temperature: 10°C~35°C (50°F~95°F)
(Ambient)
5-2. Relative Humidity : 10%~80%
(Non-condensing)
5-3. MTBF : 50,000 Hours (Min.)
Lamp Life : 30,000 Hours (Min.) (
AUO Module)
: 40,000 Hours (Min.) (LG Philips Module)
6. DIMENSIONS (with TILT/SWIVEL)
Width : 356mm (14.01'')
Depth : 151.7mm (5.97'')
Height : 359.8mm (14.16'')
7. WEIGHT (with TILT/SWIVEL)
Net. Weight : 4.0kg (8.82 lbs)
Gross Weight : 5.5kg (12.13 lbs)
SPECIFICATIONS ................................................... 2
PRECAUTIONS ....................................................... 3
TIMING CHART ....................................................... 4
OPERATING INSTRUCTIONS ................................ 5
WIRING DIAGRAM ................................................. 6
BLOCK DIAGRAM ................................................... 8
ADJUSTMENT ...................................................... 12
TROUBLESHOOTING GUIDE .............................. 13
PRINTED CIRCUIT BOARD................................... 17
EXPLODED VIEW...................................................18
REPLACEMENT PARTS LIST ...............................20
PIN CONFIGURATION............................................23
SCHEMATIC DIAGRAM (LGP MODULE).............. 25
SCHEMATIC DIAGRAM (AUO MODULE) ............. 31
MODE
POWER ON (MAX)
POWER ON (NORMAL)
STAND-BY
SUSPEND
DPMS OFF
H/V SYNC
ON/ON
ON/ON
OFF/ON
ON/OFF
-
POWER CONSUMPTION
less than 30 W
less than 28 W
less than 3 W
less than 3 W
less than 3 W
LED COLOR
GREEN
GREEN
AMBER
AMBER
AMBER
VIDEO
ACTIVE
ACTIVE
OFF
OFF
-

- 3 -
WARNING FOR THE SAFETY-RELATED COMPONENT.
• There are some special components used in LCD
monitor that are important for safety. These parts are
marked on the schematic diagram and the
replacement parts list. It is essential that these critical
parts should be replaced with the manufacturer’s
specified parts to prevent electric shock, fire or other
hazard.
• Do not modify original design without obtaining written
permission from manufacturer or you will void the
original parts and labor guarantee.
TAKE CARE DURING HANDLING THE LCD MODULE
WITH BACKLIGHT UNIT.
• Must mount the module using mounting holes arranged
in four corners.
• Do not press on the panel, edge of the frame strongly
or electric shock as this will result in damage to the
screen.
• Do not scratch or press on the panel with any sharp
objects, such as pencil or pen as this may result in
damage to the panel.
• Protect the module from the ESD as it may damage the
electronic circuit (C-MOS).
• Make certain that treatment person’s body are
grounded through wrist band.
• Do not leave the module in high temperature and in
areas of high humidity for a long time.
• The module not be exposed to the direct sunlight.
• Avoid contact with water as it may a short circuit within
the module.
• If the surface of panel become dirty, please wipe it off
with a softmaterial. (Cleaning with a dirty or rough cloth
may damage the panel.)
WARNING
BE CAREFUL ELECTRIC SHOCK !
• If you want to replace with the new backlight (CCFL) or
inverter circuit, must disconnect the AC adapter
because high voltage appears at inverter circuit about
650Vrms.
• Handle with care wires or connectors of the inverter
circuit. If the wires are pressed cause short and may
burn or take fire.
PRECAUTION
CAUTION
Please use only a plastic screwdriver to protect yourself
from shock hazard during service operation.

TIMING CHART
- 4 -
VIDEO
SYNC
B
D
CFE
A
H / V
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
H (Pixels)
V (Lines)
Sync
Polarity
+
–
–
+
–
–
–
–
–
–
–
–
+
+
+
+
+
+
+
+
–
–
–
–
–
–
+
+
Dot
Clock
25.175
28.322
25.175
30.24
31.5
31.5
36.0
40.0
50.0
49.5
57.2832
65
75
78.75
Frequency
31.468 KHz
70.0 Hz
31.468 KHz
70.0 Hz
31.469 KHz
60.0 Hz
35.00 KHz
66.67 Hz
37.861 KHz
72.8 Hz
37.50 KHz
75.0 Hz
35.156KHz
56.25 Hz
37.879 KHz
60.3 Hz
48.077 KHz
72.188 Hz
46.875 KHz
75.0 Hz
49.725 KHz
74.55 Hz
48.363 KHz
60.0 Hz
56.476 KHz
70.0 Hz
60.023 KHz
75.0 Hz
Resolution
640 x 350
720 x 400
640 x 480
640 x 480
640 x 480
640 x 480
800 x 600
800 x 600
800 x 600
800 x 600
832 x 624
1024 x 768
1024 x 768
1024 x 768
Total
Period
( E )
800
449
900
449
800
525
864
525
832
520
840
500
1024
625
1056
628
1040
666
1056
625
1152
667
1344
806
1328
806
1312
800
Video
Active
Time ( A )
640
350
720
400
640
480
640
480
640
480
640
480
800
600
800
600
800
600
800
600
832
624
1024
768
1024
768
1024
768
Blanking
Time
( B )
160
99
180
49
160
45
224
45
192
40
200
20
224
25
256
28
240
66
256
25
320
43
320
38
304
38
288
32
Sync
Duration
( D )
96
2
108
2
96
2
64
3
40
3
64
3
72
2
128
4
120
6
80
3
64
3
136
6
136
6
96
3
Back
Porch
( F )
48
60
55
34
48
33
96
39
128
28
120
16
128
22
88
23
64
23
160
21
224
39
160
29
144
29
176
28
Front
Porch
( C )
16
37
17
13
16
10
64
3
24
9
16
1
24
1
40
1
56
37
16
1
32
1
24
3
24
3
16
1
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
(MAC)
(TEXT)

OPERATING INSTRUCTIONS
- 5 -
FRONT VIEW REAR VIEW
Front Control Panel
1. Power Button
Use this button to turn the display on or off.
<Power (DPMS) Indicator>
This Indicator lights up green when the display
operates normally. If the display is in DPM (Energy
Saving) mode, this indicator color changes to
amber.
2. Menu Button
Use this button to enter or exit the On Screen
Display.
3. Button
Use these buttons to choose or adjust items in the
On Screen Display.
4.
AUTO/SELECT Button
Use this button to enter a selection in the On
Screen Display.
MENU
AUTO/SELECT
Power Connector
When adjusting your display settings, always
press the AUTO/SELECT button before entering
the On Screen Display(OSD). This will
automatically adjust your display image to the
ideal settings for the current screen resolution
size (display mode).
The best display mode is 1024x768.
See front control panel D-Sub Signal Connector
Bring up Contrast and
Brightness adjustment.
100
100
PROCESSING
AUTO CONFIGURATION
1142 3

- 6 -
WIRING DIAGRAM (LG Philips Module)
J706
J702
J1
J705
CN2
CN3
Connector Ass’y :
P/N: 6631T11016C
Connector Ass’y :
P/N: 6631T20008U

- 7 -
WIRING DIAGRAM (AUO Module)
J706
J1
J705
J402
CN2
CN3
Connector Ass’y :
P/N: 6631T11011H
Connector Ass’y :
P/N: 6631T20008U

- 8 -
BLOCK DIAGRAM (LG Philips Module)
EEPROM
24LC16
ADC/PLL/Scaler
(GMZAN2)
MICOM
(MTV312)
Schmitt Trigger
(74HCT14A)
Panel
Interface
20 Pin
Connector
RGB
H.V
D-
Sub
15P
E-DDC
Control
SCLK SDATA
CON
8P
3.3VD
3.3V_PL
Module Power 3.3V
3.3V_PL3.3VD
5VR
3.3V_AD Regulator
BA033
Regulator
BA033
3.3V_A
+3.3V
Regulator
BA033
Hsync2 Vsync2
Hsyncm Vsyncm
2.5V_A 2.5V_D
Regulator
RC117 +2.5V_A
2.5V_D
5VR
LVDS
Filter
BD
SMPS 5VR
CON 8P
Inverter block
12VS
LIPS
CON 2P
EEPROM
24LC02
24 Bit
Inverter on/off DIMADJ
Inverter on/off
DIMADJ
Inverter on/off
DIMADJ
Inverter on/off
DIMADJ
CON 2P
PWM
Controller

DESCRIPTION OF BLOCK DIAGRAM (LG Philips Module)
- 9 -
1. Scaler One chip IC(GMZAN-2, U201)
GMZAN-2 (U201) is one chip IC which it supports four internal function blocks of Video Amp, PLL,
A/D converter and Video processor.
Video signal (0.7Vp.p) clamped through C207, 208, 209 with matching IC’s proper cut off voltage.
This signal is processed as a proper 8 bit digital signal by U201’s amplifying, phase locking, A/D converting,
and scaling operations.
U201 outputs 24bit RGB data and control signals(Clock, Horizontal and Vertical sync, and Data Enable)
as LVDS IC’s input signals.
2. System Controller (Microprocessor) Circuit
1) Microprocessor (U501) distinguishes polarity and frequency by calculating horizontal and vertical sync input
from signal source.
2) Microprocessor (U501) carries out power control by sending power-down trigger signal to each IC.
3) Microprocessor (U501) communicates with EEPROM (U502), and GMZAN-2 (U201)
through IIC(2 lines) or 4 bit bus line. It makes all devices operated properly.
4) Microprocessor (U501) let User adjust screen by OSD function.
3. LVDS(Low Voltage Differential Signal, U411)
LVDS transmitter (U411) delivers digital signal to the receiver inside LCD module by method of abstraction.
The abstracted signals are pairs of RIN0+-, RIN1+-, RIN2+-, RIN3+-, and RCLKIN+- of which voltage swing
is 0.5V each.
When SHUTON pin’s input is High, transmitter goes to power down mode.
4. DC/DC block
This block is composed of regulators which supplies 2.5V and 3.3V.
Each regulator’s source power is 5VR from LIPS(LCD Inverter and Power Supply) block.
U806 supplies 2.5VD and 2.5VA and U802 supplies 3.3VD, 3.3V_AD, and 3.3V_PL powers to GMZAN-2’s
internal PLL, ADC, Pre-amp, and scaler by dropping down 5VR.
U805 supplies MODPWR-3.3V for LCD module’s operation by dropping down 5VR.
5. LIPS Block (LCD Inverter and Power Supply)
This block supplies DC voltages of 5VS to interface board and 12V to inverter by converting AC input voltage
of 100~240Vac.
Converting method is SMPS(Switching Mode Power Supply).
Inverter on/off signal from microprocessor makes inverter turned on or off .
DIMADJ signal from microprocessor does inverter’s current adjustment for Brightness control.

- 10 -
BLOCK DIAGRAM (AUO Module)
EEPROM
24LC16
ADC/PLL/Scaler
(GMZAN2)
MICOM
(MTV312)
Schmitt Trigger
(74HCT14A)
Panel
Interface
80 Pin
Connector
RGB
H.V
D-
Sub
15P
E-DDC
Control
SCLK SDATA
CON
8P
3.3VD
3.3V_PL
Module Power 3.3V
3.3V_PL3.3VD
5VR
3.3V_AD Regulator
BA033
Regulator
BA033
3.3V_A
+3.3V
Regulator
BA033
Hsync2 Vsync2
Hsyncm Vsyncm
2.5V_A 2.5V_D
Regulator
RC117 +2.5V_A
2.5V_D
5VR
Filter
BD
SMPS 5VR
CON 8P
Inverter block
12VS
LIPS
CON 2P
EEPROM
24LC02
TTL 36 Bit Two channel
Inverter on/off DIMADJ
Inverter on/off
DIMADJ
Inverter on/off
DIMADJ
Inverter on/off
DIMADJ
CON 2P
PWM
Controller

- 11 -
DESCRIPTION OF BLOCK DIAGRAM (AUO Module)
1. Scaler One chip IC(GMZAN-2, U201)
GMZAN-2 (U201) is one chip IC which it supports four internal function blocks of Video Amp, PLL,
A/D converter and Video processor.
Video signal (0.7Vp.p) clamped through C207, 208, 209 with matching IC’s proper cut off voltage.
This signal is processed as a proper 8 bit digital signal by U201’s amplifying, phase locking, A/D converting,
and scaling operations.
U201 outputs 36 bit two channel RGB data and control signals (Clock, Horizontal and Vertical sync, and
Data Enable) as LCD panel’s input signals.
2. System Controller (Microprocessor) Circuit
1) Microprocessor (U501) distinguishes polarity and frequency by calculating horizontal and vertical sync input
from signal source.
2) Microprocessor (U501) carries out power control by sending power-down trigger signal to each IC.
3) Microprocessor (U501) communicates with EEPROM (U502), and GMZAN-2 (U201)
through IIC(2 lines) or 4 bit bus line. It makes all devices operated properly.
4) Microprocessor (U501) let User adjust screen by OSD function.
4. DC/DC block
This block is composed of regulators which supplies 2.5V and 3.3V.
Each regulator’s source power is 5VR from LIPS(LCD Inverter and Power Supply) block.
U806 supplies 2.5VD and 2.5VA and U802 supplies 3.3VD, 3.3V_AD, and 3.3V_PL powers to GMZAN-2’s
internal PLL, ADC, Pre-amp, and scaler by dropping down 5VR.
U805 supplies MODPWR-3.3V for LCD module’s operation by dropping down 5VR.
5. LIPS Block (LCD Inverter and Power Supply)
This block supplies DC voltages of 5VS to interface board and 12V to inverter by converting AC input voltage
of 100~240Vac.
Converting method is SMPS(Switching Mode Power Supply).
Inverter on/off signal from microprocessor makes inverter turned on or off .
DIMADJ signal from microprocessor does inverter’s current adjustment for Brightness control.

- 12 -
ADJUSTMENT
All adjustment are thoroughly checked and corrected
when the monitor leaves the factory, but sometimes
several minor adjustment may be required.
Adjustment should be following procedure and after
warming up for a minimum of 10 minutes.
Alignment appliances and tools.
- IBM Compatible PC
- Programmable Signal Generator.
(eg. VG-819 made by Astrodesign Co.)
- E(E)PROM with each mode data saved.
- Alignment Adapter and Software.
1. Adjustment for Factory Preset Mode
1) Run alignment program for LB500K on the IBM
compatible PC.
2) Select EEPROM All Init. command and Enter.
3) Display cross hatch pattern at Mode 1.
4) Select EDID WRITE command and Enter.
2. Adjustment for White Balance
1) Display color 0,0 pattern at Mode 13.
2) Set External Bright to MAX position and Contrast to
MAX Position.
3) Select PRESET START →BIAS CAL command
and Enter.
4) No attempt to manually adjust, BIAS data is auto-
matically adjusted and saved to the EEPROM.
5) Display color 15,0 pattern at Mode 13.
6) Select DRIVE CAL command and Enter.
7) Color 1 (9300K) and Color 2 (6500K) are
automatically adjusted and saved to the EEPROM.
8) Select PRESET EXIT command and Enter.
Figure 1. Cable Connection
220
IBM
Compatible PC
PARALLEL PORT
Power inlet (required)
Power LED
ST Switch
Power Select Switch
(110V/220V)
Control Line
Not used
RS232C
PARALLEL
V-SYNC POWER
ST
VGS MONITOR
E
E
V-Sync On/Off Switch
(Switch must be ON.)
F
F
A
A
B
B
C
C
1510
5
569
1
1
1
14
13
25
6
5V
5V
5V
4.7K
4.7K
4.7K
74LS06
74LS06
OFF ON
OFF
ON
11
Video Signal
Generator

- 13 -
TROUBLESHOOTING GUIDE
1. NO POWER
CHECK U803.
CHECK
U802 PIN 1
VOLTAGE
(5V) ?
NO
NO POWER
(POWER INDICATOR OFF)
CHECK POWER
BOARD, AND FIND
OUT A SHORT POINT
AS OPENING
EACH POWER LINE
CHECK J705
VOLTAGE
PIN5, PIN6 (5V)?
NO
CHECK 5VS LINE
(OPEN CHECK)
CHECK
U805 PIN 1 Voltage
(5V) ?
NO
CHECK IIC LINE
CONNECTION
(U501, U502)
CHECK U201 VCC,
XTAL, RESET
IS U201
PIN12 (3.3V)
VOLTAGE REPEATED
AS PULSE
SHAPE ?
NO
YES
YES
YES NO PROBLEM
NO
CHECK KEY CONTROL
CONNECTOR ROUTINE

- 14 -
2. NO RASTER (OSD IS NOT DISPLAYED) – LIPS
CHECK MICOM INV
ON/OFF PORT.
J705 PIN2
5V? NO
NO RASTER
(OSD IS NOT DISPLAYED)
CHECK LIPS
J705
PIN5, PIN 6
5V?
NO
1. CONFIRM BRIGHTNESS
OSD CONTRL STATE.
2. CHECK MICOM DIM-ADJ
PORT
J705 PIN1
5V? NO
LIPS
CHECK
PULSE AS
CONTACTING SCOPE
PROBE TO CAUTION LABEL.
(CONTACT PROBE TO
CAUTION LABEL.
CAN YOU SEE PULSE
AT YOUR
SCOPE?
NO
REPLACE CCFL LAMP
IN THE LCD MODULE
YES
YES
YES
YES

- 15 -
1. CHECK PIN141, 142
SOLDERING CONDITION
2. CHECK X201
3. TROUBLE IN U201
U201
POWER PINS
3.3V?
NO CHECK U802, U806
U201 PIN141, 142
OSCILLATE AS 20MHZ?
NO
CHECK CONNECTION LINE
FROM U201 TO U401
NO
TROUBLE IN CABLE
OR LCD MODULE
TROUBLE IN CABLE
OR LCD MODULE
CHECK
CONNECTION LINE
FROM U201 TO J402
CHECK U805
CHECK
U805
U401 PIN1
3.3V?
NO
NO
YES
YES
YES
(LG Philips Module)
YES
(AUO Module)
YES
YES
3. NO RASTER (OSD IS NOT DISPLAYED) – gmZAN2
NO RASTER
(OSD IS NOT DISPLAYED)
U401/U411
PIN31 IS 65MHz CLOCK?
PIN27 IS 48KHz H-SYNC?
PIN28 IS 60Hz V-SYNC?
PIN30 IS 48KHz DEN?
IS PULSE APPEARED
AT SIGNAL PINS?
J402
PIN63 IS 65MHz CLOCK?
PIN66 IS 48KHz H-SYNC?
PIN70 IS 60Hz V-SYNC?
PIN69 IS 48KHz DEN?
IS PULSE APPEARED
AT SIGNAL PINS?
J402
PIN74, PIN 1
3.3V?
YES
NO

- 16 -
CHECK U802, U806
U201
POWER PIN
3.3V?
NO
1. CHECK PC
2. CHECK SIGNAL CABLE
& D-SUB CONNECTOR
LINE
CHECK
R,G,B INPUT?
U201 PIN 87, 91, 95 NO
CHECK H-SYNC LINE
(D-SUB→U701→MICOM
→U201 PIN150)
CHECK
H-SYNC INPUT
U201 PIN 150?
NO
YES
YES
YES
NO RASTER
(OSD IS DISPLAYED)
4. NO RASTER (OSD IS DISPLAYED) – gmZAN2

PRINTED CIRCUIT BOARD
- 17 -
C514
U502
R561 R807
L701
R537 R533 R534
R571
R581
C503 C502
R529
R525
R560
R570
R580 U805
C820
C816
C706
C813
1
J702
X201
C832
L710
J706
R541
R726
C713
Q506
Q505
R532 Q502
C516
R510
R530
R531
R528
R511
C835 R805
C818
L802
C819
L401
R403 R404
C403
C410 C409 C408 C407 C406
C249
C248 C224 C223 C210 C829
L804
R712
R713
R715
R551
R727
U701
R723 R724
U702
R725 C703
ZD501
R539
Q501
R535
C501 C511
R512
R515
R518
R540
U802
C401 C402
C817
LPL
PANNEL
R401C404
C243
C242
160
150
C212
C235
R206
C215 C828
C270
120
R709
R708 C708 C709 C710 C711 L704
L705 L702 L703
R710
R711
R714
C712
R705
R716R733
R722
D707 D708
X501
Q503
R536C512 C513 R517
R516
R526
C505
U807
C227 C234
C237 C238
C218 C231
C233 C229
C241
C245 C246
C247 C217
C244
U401 C405
BA205
C236
C206
10
5
110
R202
C214
L803
R734
C707
Q701
ZD701
C731
D703 D704 D705
R501
R502
R503
R538
R523
R524
R527
C506
C507
U806
C802
C228
C239 C240
C219 C221
C222
BA202
C226
BA206 C232
L201
20
100
R201 C821 C827
R205
C824
R717 R707
ZD702
R504
R505
R506
R507
R508
R509
R519
R520
R521
C508
C801
L805
R207 C261 C225 C230
L204 C262
C205
30
90
C258
C259
C269
R720 R513 C504
L706
L707
C715
C509
U501
RA502RA501
C515
R813 R522
C826
C825
C831
BA201
BA203
C250
L203
BA204
C204
L202
40
U201
50
60
70
80
C201
C202
C203
C254
C255
C256
C257
D701
D702
D706
R203 R204
R208
R209
R210
C207
C208
C209
R701 R703R706
C717
L708 C716
J705
L801
P/N :6870T534A12
MODEL:LB500K
DATE :2002.07.20
C220 C271
C211
C216
L205
J703
1. MAIN BOARD (Component Side)
C514
U502
R561 R807
L701
R537 R533 R534
R571
R581
C503 C502
R529
R525
R560
R570
R580 U805
C820
C816
C706
C813
1
J702
X201
C832
L710
J706
R541
R726
C713
Q506
Q505
R532 Q502
C516
R510
R530
R531
R528
R511
C835 R805
C818
L802
C819
L401
R403 R404
C403
C410 C409 C408 C407 C406
C249
C248 C224 C223 C210 C829
L804
R712
R713
R715
R551
R727
U701
R723 R724
U702
R725 C703
ZD501
R539
Q501
R535
C501 C511
R512
R515
R518
R540
U802
C401 C402
C817
LPL
PANNEL
R401C404
C243
C242
160
150
C212
C235
R206
C215 C828
C270
120
R709
R708 C708 C709 C710 C711 L704
L705 L702 L703
R710
R711
R714
C712
R705
R716R733
R722
D707 D708
X501
Q503
R536C512 C513 R517
R516
R526
C505
U807
C227 C234
C237 C238
C218 C231
C233 C229
C241
C245 C246
C247 C217
C244
U401 C405
BA205
C236
C206
10
5
110
R202
C214
L803
R734
C707
Q701
ZD701
C731
D703 D704 D705
R501
R502
R503
R538
R523
R524
R527
C506
C507
U806
C802
C228
C239 C240
C219 C221
C222
BA202
C226
BA206 C232
L201
20
100
R201 C821 C827
R205
C824
R717 R707
ZD702
R504
R505
R506
R507
R508
R509
R519
R520
R521
C508
C801
L805
R207 C261 C225 C230
L204 C262
C205
30
90
C258
C259
C269
R720 R513 C504
L706
L707
C715
C509
U501
RA502RA501
C515
R813 R522
C826
C825
C831
BA201
BA203
C250
L203
BA204
C204
L202
40
U201
50
60
70
80
C201
C202
C203
C254
C255
C256
C257
D701
D702
D706
R203 R204
R208
R209
R210
C207
C208
C209
R701 R703R706
C717
L708 C716
J705
L801
P/N :6870T534A12
MODEL:LB500K
DATE :2002.07.20
C220 C271
C211
C216
L205
J703
LED1
SW2
P/N:6870T534C12
MODEL:LB500K
DATA:2002.07.20
SW6 SW3
SW4
R6
R4
SW7
R7
SW5
R3 R5
R1 R2
SW1
ZD1
ZD2
J1
2. MAIN BOARD (Component Side)
LG Philips Module
AUO Module
3.CONTROL BOARD (Component Side)

- 18 -
EXPLODED VIEW
3
2
2-1
4-A
4-B
9-1
10
a
11
6
5
9
7
1
8

- 19 -
EXPLODED VIEW PARTS LIST
Ref. No.
1
2
2-1
3
4-A
4-B
5
6
7
8
9
9-1
10
11
a
Part No.
3091TKL039U
6304FLP025A
6304FLP024A
6304FAU004A
3809TKL026A
3043TKK097A
3043TKK092A
4951TKS091A
4951TKS091B
6634B00051A
or 6634B00053A
3313TL5054A
3313TL5054B
4950TKK424A
4951TKS086B
6631T11016C
6631T11011H
6871TST310A
6850TD9004A
or 6850TD9001A
332-068U
Description
CABINET ASSEMBLY, LB500K BRAND 3090TKL038
LCD(LIQUID CRYSTAL DISPLAY) LM150X06-A3M1 LG PHILPS TFT COLOR (LB500K-GL)
LCD(LIQUID CRYSTAL DISPLAY) LM150X07-B4 LG PHILPS TFT COLOR 15.0 (LB500K-GL)
LCD(LIQUID CRYSTAL DISPLAY) L150X3M AU TFT COLOR 1024X768 TTL (LB500K-GU)
BACK COVER ASSEMBLY, LB500J 3808TKL029A
TILT SWIVEL ASSEMBLY, LB500J . (BASE)
TILT SWIVEL ASSEMBLY, LB500J
METAL ASSEMBLY, FRAME MAIN(LB500K,LPL MODULE) (LB500K-GL)
METAL ASSEMBLY, FRAME MAIN(AU MODULE) (LB500K-GU)
ADAPTER, AC-DC, PWI1502LG 5V/12A 1A/1A LIPS FOR K-CHASSIS (POWER NET)
ADATER, AC-DC, ADP-30EP 5V/12A 1A/1A LIPS FOR K-CHASSIS (DELTA)
MAIN TOTAL ASSEMBLY LB500K LPL BRAND CL-32 (LB500K-GL)
MAIN TOTAL ASSEMBLY LB500K-AUO BRAND CL-32 (LB500K-GU)
METAL REAR LB500J (LB500K-GL)
METAL ASSEMBLY REAR (LB500K-GU)
CONNECTOR ASSEMBLY, 20P H-H 100MM UL20276 I/FACE CABLE LB500K (LB500K-GL)
CONNECTOR ASSEMBLY, 80P H-H 133MM FPC F219-017 LB500J (LB500K-GU)
PWB(PCB) ASSEMBLY,SUB, LB500K CONTROL TOTAL BRAND CL-32
CABLE,D-SUB, UL 2990-9C(5.5) DT 1870MM GRAY(85964) LB500K DM
CABLE,D-SUB, UL 2990-9C(7.5) DT 1870MM GRAY(85964) BRAND DM
SCREW, PPB+3*8 (MSWR/FZMW1)

- 20 -
DATE: 2002. 7. 24.
*S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION
C201 0CC100CK41A 10PF 1608 50V 5% R/TP NP0
C202 0CC100CK41A 10PF 1608 50V 5% R/TP NP0
C203 0CC100CK41A 10PF 1608 50V 5% R/TP NP0
C204 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C205 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C206 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C207 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C208 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C209 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C210 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C211 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C212 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C213 0CC560CK41A 56PF 1608 50V 5% R/TP NP0 (LB500K-GU)
C214 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C215 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C216 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C217 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C218 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C219 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C221 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C222 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C223 0CC180CK41A 18PF 1608 50V 5% R/TP NP0
C224 0CC180CK41A 18PF 1608 50V 5% R/TP NP0
C226 0CC680CK41A 68PF 1608 50V 5% R/TP NP0
C227 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C228 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C229 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C230 0CC080CK11A 8PF 1608 50V 0.5 PF R/TP NP0
C230 0CC220CK41A 22PF 1608 50V 5% R/TP NP0 (LB500K-GU)
C231 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C233 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C234 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C237 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C238 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C239 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C240 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C241 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C242 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C243 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C244 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C245 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C246 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C247 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C248 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C249 0CC220CK41A 22PF 1608 50V 5% R/TP NP0
C250 0CC220CK41A 22PF 1608 50V 5% R/TP NP0 (LB500K-GU)
C251 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C252 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C253 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C254 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C255 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C256 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
DATE: 2002. 7. 24.
*S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION
C257 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C258 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C259 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C261 0CC680CK41A 68PF 1608 50V 5% R/TP NP0
C262 0CC680CK41A 68PF 1608 50V 5% R/TP NP0
C269 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C270 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C271 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C272 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C273 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C274 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C275 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C276 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C277 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C278 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C279 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C280 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C281 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C282 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C283 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C284 0CC220CK41A 22PF 1608 50V 5% R/TP NP0(LB500K-GU)
C401 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C402 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C403 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C404 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C405 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C501 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C502 0CC101CK41A 100PF 1608 50V 5% R/TP NP0
C503 0CC101CK41A 100PF 1608 50V 5% R/TP NP0
C504 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C505 0CC101CK41A 100PF 1608 50V 5% R/TP NP0
C506 0CC101CK41A 100PF 1608 50V 5% R/TP NP0
C507 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C508 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C509 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C512 0CC180CK41A 18PF 1608 50V 5% R/TP NP0
C513 0CC180CK41A 18PF 1608 50V 5% R/TP NP0
C514 0CH8106F611 10UF 16V M 85STD(CYL) R/TP
C515 0CC680CK41A 68PF 1608 50V 5% R/TP NP0
C516 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C701 0CC680CK41A 68PF 1608 50V 5% R/TP NP0(LB500K-GU)
C702 0CC680CK41A 68PF 1608 50V 5% R/TP NP0(LB500K-GU)
C703 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C706 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C707 0CC680CK41A 68PF 1608 50V 5% R/TP NP0
C712 0CC101CK41A 100PF 1608 50V 5% R/TP NP0
C713 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C715 0CH3105F946 1UF 16V Z F 2012 R/TP
C731 0CC680CK41A 68PF 1608 50V 5% R/TP NP0
C801 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C802 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C813 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y5P
C816 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C817 0CE107CF610 100UF SHL,SD 16V 20% BULK FL
REPLACEMENT PARTS LIST
CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS,
READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL.
* NOTE : S SAFETY Mark
AL ALTERNATIVE PARTS
MAIN BOARD
CAPACITORS