LG 50PG6900-ZF (CHASSIS:PD84A) Service Manual ▷ View online
2) 50” Module
- 5 -
Display Screen Device
Aspect Ratio
PDP Module
Operating Environment
Storage Environment
Input Voltage
1
2
3
4
5
6
No
Item
Specification
Remark
50 inch Wide Color Display Module
16:9
PDP50G1####,
RGB Closed Type Glass Filter
1)Temp.
: 0 ~ 40deg
2)Humidity : 20 ~ 80%
3)Temp.
: -20 ~ 60deg
4)Humidity : 10 ~ 90%
100-240V~, 50/60Hz
PDP
LGE SPEC.
Maker : LG
Market
Broadcasting system
Receiving system
Scart Jack (2EA)
Video Input (2EA)
S-Video Input (1EA)
Component Input (1EA)
RGB Input
HDMI Input(3EA)
Audio Input (4EA)
1
2
3
4
5
6
7
8
9
10
No
Item
Specification
Remark
UK, France, Germany, Spain, Sweden,
Finland, Italy
1) PAL-BG
2) PAL-DK
3) PAL-I, I’
4) DVB-T(ID TV)
5) SECAM-L/L’
Analog: Upper Heterodyne
Digital: COFDM
PAL, SECAM
PAL, SECAM, NTSC
PAL, SECAM, NTSC
Y/Cb/Cr, Y/Pb/Pr
RGB-PC
HDMI-PC(HDMI 1 only)
HDMI-DTV & SOUND
PC Audio, Component, AV
Scart1 is Full scart and support RF-
OUT(Analog).
Scart2 is Half scart and support DTV/MNT-
OUT.
4 System: PAL, SECAM, NTSC, PAL60
4 System: PAL, SECAM, NTSC, PAL60
Rear 2EA
Side 1EA
L/R Input
V
Model General Specification
- 6 -
1. Application Range
This spec sheet is applied all of the PD84A chassis by
manufacturing LG TV Plant or sort plants.
manufacturing LG TV Plant or sort plants.
2. Specification
Caution: The module keeping condition
O
The module keeping condition: The normal temperature
condition(more than 15°C)
--> Immediately the line supply.
--> Immediately the line supply.
O
The module keeping condition: 0°C
--> The module must be kept for more than 2 hours at the
normal temperature.
O
The module keeping condition: -20°C
--> The module must be kept for more than 3 hours at the
normal temperature.
O
The case of Gu-mi factory at the winter season.
--> The module must be kept for more than 5 minutes at
the heating zone(40°C~45°C).
(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.
However, the use of isolation transformer will help protect
test instrument.
(2) Adjustment must be done in the correct order.
(3) The adjustment must be performed in the circumstance of
(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.
there is no specific designation.
(4) The input voltage of the receiver must keep 100~240V,
50/60Hz.
(5) The receiver must be operated for about 5 minutes prior to
the adjustment.
O
After RGB Full White in HEAT-RUN Mode, the receiver
must be operated prior to the adjustment.
O
Enter into HEAT-RUN MODE
1) Press the POWER ON KEY on R/C for adjustment.
2) OSD display and screen display PATTERN MODE.
2) OSD display and screen display PATTERN MODE.
- Set is activated HEAT run without signal generator in this
mode.
- Caution: If you turn on a still screen more than 20 minutes
(Especially digital pattern, cross hatch pattern), an after
image may be occur in the black level part of the
screen.
image may be occur in the black level part of the
screen.
PCB assembly Adjustment Method
Caution: Using ‘power on’ button of the control R/C, power on
TV.
TV.
[ ADC Calibration Protocol (RS232)
- Baud rate : 115200 bps
- RS232 Host : PC
- echo : none
- RS232 Host : PC
- echo : none
3. ADC Adjustment
3-1. Adjustment of AV(CVBS)
O
Standard equipment : 802F Pattern Generator. Master
Pattern Generator(MSPG-925, etc) or same product
O
Required Equipment
1) Remote controller for adjustment
2) MSPG-925FS Pattern Generator (Which has Video
2) MSPG-925FS Pattern Generator (Which has Video
Signal: 7 Color Bar Pattern shown in Fig. 1).
- Model: 202 / Pattern: 65 EC and FC model use PAL-
- Model: 202 / Pattern: 65 EC and FC model use PAL-
BGDHI (composite signal)
(1) Input the Video signal: 7 color Bar signal into AV3.
(2) Set the PSM to Vivid mode in the Picture menu
(2) Set the PSM to Vivid mode in the Picture menu
(3) Press INSTART key on R/C for adjustment.
(4) Press the
(4) Press the
G
(Vol. +) key operate to set, then it becomes
automatically.
Auto-RGB OK means completed adjustment
Auto-RGB OK means completed adjustment
ADJUSTMENT INSTRUCTION
<Fig. 1> Color Bar Signal
- 7 -
3-2. Adjustment of Component
O
Standard equipment : 802F Pattern Generator. Master
Pattern Generator(MSPG-925, etc) or same product
O
Required Equipments
1) Remote controller for adjustment
2) MSPG-925FS Pattern Generator (Which has Video
2) MSPG-925FS Pattern Generator (Which has Video
Signal: 7 Color Bar Pattern shown in Fig. 1).
==> Model: 215 / Pattern: 65
==> Model: 215 / Pattern: 65
(1) Input the Component 720p/50Hz 7 Color Bar(MSPG-
925FS model: 215, pattern: 65) signal into Component.
(2) Set the PSM to Vivid mode in the Picture menu.
(3) Press IN-START key on R/C for adjustment
(4) Press the
(4) Press the
G
(Vol. +) key to operate the set, then it
becomes automatically
(5) Auto-RGB OK means the adjustment is completed
3-3. Adjustment of RGB
O
Standard equipment: PC Pattern Generator(VG828,
VG854, 801GF, MSP3240A) or same product
O
Required Equipments
1) Remote controller for adjustment
2) MSPG-925FS Pattern Generator
2) MSPG-925FS Pattern Generator
(Which has Video Signal: 7 Color Bar Pattern shown in
Fig. 1).
Fig. 1).
(1) Input the PC 1024x768 @ 60Hz 7 color bar (MSPG-
925FS, Model: 3, Pattern: 65) into RGB. (using D-sub to D-
sub cable)
sub cable)
(2) Set the PSM to Vivid mode in Picture menu.
(3) Press the IN-START key on R/C for adjustment.
(4) Press the
(4) Press the
G
(Vol. +) key operate To set , then it becomes
automatically.
(5) Auto-RGB OK means adjustment is completed.
(6) Press the
(6) Press the
G
(Vol. +) key to operate the set, then it
becomes automatically
(7) Auto-RGB OK means the adjustment is completed
3-4. Adjustment of SCART-RGB
O
Standard equipment : Master Pattern Generator(MSPG-
925, etc) or same product
O
Required Equipments
1) Remote controller for adjustment
2) MSPG-925FS Pattern Generator (Which has Video
2) MSPG-925FS Pattern Generator (Which has Video
Signal: 8 Color Bar Pattern shown in Fig. 2).
==> Model: 232/ Pattern: 8
==> Model: 232/ Pattern: 8
(1) Input the SCART-RGB 8 Color Bar(MSPG-925FS model:
232, pattern: 8) signal into AV1. (using Full Scart Cable)
(2) Set the PSM to Vivid mode in the Picture menu.
(3) Press IN-START key on R/C for adjustment
(4) Press the
(4) Press the
G
(Vol. +) key to operate the set, then it
becomes automatically
(5) Auto-RGB OK means the adjustment is completed
4. Channel Memory Setting Method
Recovery the channel memory by adjust R/C.
You can set channel memory by R/C for adjustment
(1) Press ADJ key on R/C for adjustment.
(2) Press VOL + key on “Channel Recover”
(1) Press ADJ key on R/C for adjustment.
(2) Press VOL + key on “Channel Recover”
5. PCMCIA CARD Checking Method
You must adjust DTV ## Channel and insert PCMCIA
CARD to socket.
CARD to socket.
(1) If PCMCIA CARD works normally, normal signals display
on screen.
But it works abnormally, “No CA module” words display on
screen.
But it works abnormally, “No CA module” words display on
screen.
[ Caution : Before power off, input mode must be changed
RF mode.
<Fig. 1> Color Bar Signal
<Fig. 2> 8 Color 16 Step Gray Signal
<Fig. 1> Color Bar Signal
SET Assembly Adjustment Method
Caution: Each PCB assembly must be checked by check JIG set.
(Because power PCB Assembly damages to PDP
Module, especially be careful)
Module, especially be careful)
6. 50” POWER PCB Ass’y Voltage
Adjustment
(Va, Vs Voltage Adjustment)
6-1. Model Name :
50PG6900,50PG6910
6-2. Adjustment Method
(1) Va Adjustment
1) After receiving 100% Full White Pattern, HEAT RUN.
2) Connect + terminal of D. M..M. to Va pin of P811, connect -
2) Connect + terminal of D. M..M. to Va pin of P811, connect -
terminal to GND pin of P811.
3) After turning VR901,voltage of D.M.M adjustment as same
as Va voltage which on label of panel right/top (deviation;
±0.5V)
±0.5V)
(2) Vs Adjustment
1) Input signal : RF noise signal
2) Connect + terminal of D. M..M. to Vs pin of P811, connect -
2) Connect + terminal of D. M..M. to Vs pin of P811, connect -
terminal to GND pin of P811.
3) After turning VR 951, voltage of D.M.M adjustment as same
as Vs voltage which on label of panel right/top (deviation ;
±0.5V)
±0.5V)
7. 42” POWER PCB Ass’y Voltage
Adjustment
(Va, Vs Voltage Adjustment)
7-1. Model Name:
42PG6900,42PG6910
7-2. Adjustment Method
(1) Va Adjustment
1) After receiving 100% Full White Pattern, HEAT RUN.
2) Connect + terminal of D. M..M. to Va pin of P811, connect -
2) Connect + terminal of D. M..M. to Va pin of P811, connect -
terminal to GND pin of P811.
3) After turning VR901,voltage of D.M.M adjustment as same
as Va voltage which on label of panel right/top (deviation;
±0.5V)
±0.5V)
(2) Vs Adjustment
1) Input signal : RF noise signal
2) Connect + terminal of D. M..M. to Vs pin of P811, connect -
2) Connect + terminal of D. M..M. to Vs pin of P811, connect -
terminal to GND pin of P811.
3) After turning VR 951, voltage of D.M.M adjustment as same
as Vs voltage which on label of panel right/top (deviation ;
±0.5V)
±0.5V)
8. EDID(The Extended Display
Identification Data) / DDC
(Display Data Channel) Download
(Display Data Channel) Download
8-1. Required Test Equipment
(1) Adjusting PC with S/W for writing EDID Data.(S/W: EDID
TESTER Ver.2.5)
(2) A Jig for EDID Download
(3) Cable : Serial(9Pin or USB) to D-sub 15Pin cable, D-sub
(3) Cable : Serial(9Pin or USB) to D-sub 15Pin cable, D-sub
15Pin cable, DVI to HDMI cable.
8-2. Setting of Device
- 8 -
<Fig. 3> 50inch Power PCB Assy Voltage adjustment
<Fig. 4> 42inch Power PCB Assy Voltage adjustment
<Fig. 5> Connection Diagram of DDC download
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