Read LG 42PQ60R-TA (CHASSIS:PP91A) Service Manual online
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)
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.
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
(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.
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.)
(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)
(1) Enter the adjustment mode of the white balance
- Enter the white balance adjustment mode at the same time
heat-run mode when pushing the power on by power only
key
key
- 13 -
P811
Vs ADJ
VR901
VR901
(Fig. 4)
EZ ADJUST
0. ADC CALIBRATION : TV
1. ADC ADJUST
2. SUB B/C ADJUST
2. SUB B/C ADJUST
3. W/B ADJUST
4. WHITE PATTERN : OFF
5. EDID D/L
5. EDID D/L
(Fig. 5)
3. W/B ADJUST
Mode
: TV
TEMPERATURE
: Medium
R-Gain.
: 192
G-Gain.
: 192
B-Gain.
: 192
R-Offset
: 128
G-Offset
: 128
B-Offset
: 128
COPY ALL
(Fig. 6)
Method 2-(RS-232C)
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