DOWNLOAD LG 50PT255C-TA (CHASSIS:PP11K) Service Manual ↓ Size: 14.12 MB | Pages: 96 in PDF or view online for FREE

download process is deleted in PP01A/B/C Chassis 

  In PP01A/B/C Chassis, it is usimg the EEPROM masking HDCP Key 

 

☞  Caution: Do not connect external input cable 
☞  Caution: Adjustment result is applied to SET On/Off later.

 

RF input 

AV / Component / RGB input 

NO SIGNAL or White noise 

NO SIGNAL 

 

 

 

 

 

 

 

 

 

 

 

               

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※

 

Adjustment is done using internal ADC, so input signal is not necessary. 

 

1) Press ADJ key on R/C for adjustment. Need not convert input mode. 
2) Enter Password number. The value of Password is “0 0 0 0”. 
3) Select “0. ADC calibration” by using ▲/▼(CH +/-) and press ENTER(■). 
4) Start ADC adjustment by using  ◀/▶(VOL +/-) or press ENTER(■). 

5) Both component and RGB ADC adjustment are executed automatically . 
 

OK 

 

When ADC adjustment is finished, this OSD appear. 

 

 

☞  Notice : After All mode check, set the Speaker Volume “0”. 
      Caution : Don’t Press the Power Key on Remote Controller. 
           Just AC Power Off. ( Not DC off ) 

 

☞  Notice : From this sentence, All working is mass production.

 

POWER PCB Ass’y Voltage adjustment    (Vs voltage adjustment) 

5.1.1 Test equipment : D.M.M 1EA 
5.1.2 Connection Diagram for Measuring : refer to fig.7 
5.1.3 Adjustment method   

5.1.3.1 Vs adjustment 

1)  Connect + terminal of D. M..M. to Vs pin of P811, connect -terminal to GND pin of P811. 
2)  After turning VR901, voltage of D.M.M adjustment as same as Vs voltage which on label of panel 

right/top    ( deviation ; ±0.5V) 

 

5.1.3.2 Va adjustment 

1)  Connect + terminal of D. M..M. to Va pin of P811, connect -terminal to GND pin of P811. 
2)  After turning VR502, voltage of D.M.M adjustment as same as Va voltage which on label of panel 

right/top    ( deviation ; ±0.5V) 

 

M5V 

VA 

GND 

VS 

VS 

VA ADJ 

 

 
 

 

 

 

 

 

 

 

 

 

 

 

               

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Tool Option

Area Option 
Option 1 
Option 2 
Option 3 ( Available for EU & Non EU model )   

 

 

 

 

 

 

 

 

 

 

               

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* Profile : Must be changed the option value because being different with some setting value 

depend on module, inch and market   

        * Equipment : adjustment remote controller 

Push the IN-START key in the Adjust R/C. 

Enter Password number. The value of Password is “0 0 0 0”. 

 

 

Input the Area Option Number that was specified in the BOM, into the Shipping area. 

Select “

” by using  ▲/▼(CH+/-) key , and press the number key(0~9) 

consecutively 

  ex) If the value of Area

is 40, input the data using number key “40” 

(Fig. 1) 

                  Caution : Don’t Push 

Enter Password 

MODEL : XXXXXX    Module : XXXX 
S/W Ver. : X.XX         
UTT                        X      Temp :    xxxxx : Celsius 
ADC CAL.                      ROM : XXXXXXX 
RGB :                                  OK 
Component SD              OK 
Component HD              OK 
EDID        RGB(OK) HDMI1(OK) HDMI2(OK) HDMI3(OK) 

Tool Option                   

4

 

Area Option 

                40 

Option 1               

  17 

Option 2                          40 
Option 3 

 

    0 

: 
:

*

*

*

*

Close 

 

 

 

 

 

 

 

 

 

 

               

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    5.3.1 Required Equipment 

z  Remote controller for adjustment   

z  Color Analyzer ( CS-1000, CA-100,100+,CA-210 or same produc :

 

lease adjust CA-210, CA-100+ by CS-1000 before measuring

z  Auto W/B adjustment instrument(only for Auto adjustment) 
. 

 

 

 

 

. 

Adjust Process will start by execute RS232C Command. 

★ CS-1000/CA-100+/CA-210(CH 10) White balance adjustment coordinates   

Color Coordinate 

CSM 

x y 

Temp ±Color 

Coordinate 

Cool 

0.276 0.283 11000K 

Medium 

0.285 0.293 9300K 

Warm 0.313  0.329 6500K 

        1) Enter ‘PICTURE RESET’ on Picture Mode, then turn off Fresh Contrast and Fresh colour in Advanced Control

 

2) After enter Service Mode by pushing “ADJ” key, 
3) Enter White Pattern off of service mode, and change off -> on. 
4) Enter “W/B ADJUST” by pushing “►” key at “3. W/B ADJUST”.   
5) Adjust W/B DATA, for all CSM, choose ‘COPY ALL’ 
 

※

 Gain Max Value is 192. So, Never make any Gain Value over 192 and please fix one Value on 192, 

between R, G and B. 

 Min 

Tpy 

Max 

R-GAIN 0 

192  192 

G-GAIN 0 

192  192 

B-GAIN 0 

192  192 

※ Auto-control interface and directions 

1. Adjust in the place where the influx of light like floodlight around is blocked. 

  (

). 

2. Measure and adjust after sticking the Color Analyzer (CA-100+, CA210 ) to the side of the module.   

3. Aging time     

After aging start, keep the Power on (no suspension of power supply)   
and heat-run