50PQ100R-ZA (CHASSIS:PP91A) - LG TV Service Manual (repair manual). Page 12

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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.
8. POWER PCB Assy Voltage
Adjustment
(Vs voltage Adjustment)
8-1. Test Equipment:
D.M.M 1EA
8-2. Connection Diagram for Measuring
Refer to (Fig. 4)
8-3. Adjustment Method 
(1) Vs Adjustment
1)  Connect  +  terminal  of  D.  M..M.  to  Vs  pin  of  P702,
connect -terminal to GND pin of P702.
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)
9. Adjustment of White Balance
9-1. Purpose and Principle for Adjustment 
of the Color Temperature
(1)  Purpose:  Adjust  the  color  temperature  to  reduce  the
deviation of the module color temperature.
(2)  Principle  :  To  adjust  the  white  balance  without  the
saturation,  Fix  the  one  of  R/G/B  gain  to  C0  and  decrease
the others.
(3) Adjustment mode: Two modes of Cool, Warm and Medium
9-2. Required Equipment
(1) Remote controller for adjustment 
(2) Color Analyzer : CA-100+ or CA-210 or same product
- PLASMA TV(ch : 10)
(3) Auto W/B adjustment instrument(only for Auto adjustment)
- Do the white balance adjustment under the 10LUX
[ Notice:  When  using  the  Color  Analyzer  with  PDP,
recommend the CA-100 more than CA-210.
If CA-100 can not available, it is also good to use the CA-210.
(4) PC (for communication through RGB) 
(5) Pattern Generator (MSPG-925FA etc.)
-Before  white  balance,  press  the  ADJ  key  and  select  third
row like (Fig. 5)
-To enter White-balance mode, Enter Password Number “0
0 0 0” and  select third row. 
[ Caution: System control Host should be “DDC” for adjustment.
(6) Adjust W/B DATA, for all CSM, choose ‘COPY ALL’
9-3. Connecting Diagram of Equipment for 
Measuring
(For Automatic Adjustment) 
(Method 2, using RS-232C, You connect RS-232C Cable)
- 12 -
(Fig. 4)
EZ ADJUST
0. ADC CALIBRATION  : TV
1. ADC ADJUST
2. SUB B/C ADJUST
3. W/B ADJUST
4. WHITE PATTERN   : OFF
5. EDID D/L
(Fig. 5)
3. W/B ADJUST
ModeWWW
: TV
TEMPERATUREWW
: Medium
R-Gain.WWW
: 192
G-Gain.WWW
: 192
B-Gain.WWW
: 192
R-OffsetWWW
: 128
G-OffsetWWW
: 128
B-OffsetWWW
: 128
COPY ALL
(Fig. 6)
Method 2-(RS-232C)
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