50PG30TR-TA (CHASSIS:PP83A) - LG TV Service Manual (repair manual). Page 7

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(Va, Vs Voltage adjustments)

D.M.M. 1EA

: refer to Fig.2

1) After receiving 100% Full White Pattern, HEAT RUN.
2) Connect + terminal of D.M.M to Va pin of P801, connect

- terminal to GND pin of P801.

3)  After  turning  VR902,  voltage  of  D.M.M  adjustment  as

same  as  Va  voltage  which  on  label  of  panel  right/top.
(Deviation; ±0.5V)

1) Connect + terminal of D.M.M to Vs pin of P801, connect

– terminal to GND pin of P801.

2)  After  turning  VR901,  voltage  of  D.M.M  adjustment  as

same  as  Va  voltage  which  on  label  of  panel  right/top.
(Deviation; ±0.5V)

* Press the FRONT-AV Key on R/C for converting input mode.

(Change RS-232 Host : pc, BaudRate : 115200bps)

Each PCB assembly must be checked by check JIG set.
(Because power PCB Assembly damages to PDP Module,
especially be careful)

* Use the proper signal cabel for EDID Download

- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists

* Never connect HDMI & DVI-D & DVI-A Cable at the same time.
* Use the proper cables below for EDID Writing
* HDMI 1 and HDMI2 is different each other. So you have to

Download different EDIT File.

(Fig.2) Connection diagram of power adjustment for measuring

For Analog EDID

D-sub to DVI-I

DVI-D to DVI-D

For Digital EDID

For HDMI EDID

DVI-D to HDMI or HDMI to HDMI

1

2

3

Manufaturer

Version

Revision

GSM

Digital : 1

Digital : 3

1E6D

01

03

Condition

Item

No

Hex Data

MSPG925FA

Component

RGB-PC

RF/AV/S-VIDEO

ADC

Model : 60

1024*768 60Hz

Pattern : 65

*100% Color Bar

Model:217

720P/ 50Hz

Pattern : 65

*100% Color Bar

PAL

INPUT

AV1

SELECT

Model : 202

(PAL-BGDHI)

Pattern : 65

*100% Color Bar

- System control RS-232 Host should be “PC“ for adjustment.