LG 42PX3DBV Service Manual page 12

7. AD9883A-Set Adjustment
7-1. Synopsis
AD9883A-Set adjustment to set the black level and the Gain
of optimum with an automatic movement from the analog =>
digital converter.
7-2. Test Equipment
Service R/C, 801GF(802B, 802F, 802R) Pattern Generator
(720P The Vertical 100% Color Bar Pattern output will be
possible and the output level will accurately have to be
adjusted to 0.7±0.1Vp-p)
<Fig. 3> Adjustment Pattern : 720P Vertical Color Bar
7-3. Adjustment
(1) Select Component1 or Component2 as the input with
100% Vertical Color Bar Pattern(TVBAR_100) in 720P
Mode.
(2) After receiving signal for at least 1 second, press the ADJ
Key on the Service R/C to enter the 'Ez - Adjust' and select
the '1. AD9883A-Set'.
Pressing the + Key to adjust with automatic movement.
(3) When the adjustment is over, 'Complete Auto
Configuration' is displayed. If the adjustment has errors,
'AD9883A Configuration Error' is displayed.
(4) Readjust after confirming the case Pattern or adjustment
condition where the adjustment had errors.
(5) After adjustment is complete, exit the adjustment mode by
pressing the ADJ KEY.
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ADJUSTMENT INSTRUCTIONS
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8. Adjustment of White Balance
8-1. Required Equipment
(1) Color analyzer (CA-100 or similar product)
(2) Automatic adjustor (with automatic adjustment hour
necessity and the RS-232C communication being possible)
(3) AV Pattern Generator
8-2. Connection Diagram of Equipment
for Measuring
High Light Adjustment
Low Light Adjustment
RS-232C
<Fig. 4> Connection Diagram of Automatic Adjustment
[ [ RS-232C Command
(Automatic Adjustment)
RS-232C Command
[CMD ID DATA]
R Gain ja 00 XX
G Gain jb 00 XX
B Gain jc 00 XX
R Cut lj 00 XX
G Cut lk 00 XX
B Cut ll 00 XX
(Automatic Adjustment)
COLOR
ANALYZER
TYPE; CA-100
CVBS Signal Input
PDP MONITOR
Window
MSPG-2100 or
MSTG-5200
CENTER
(DEFAULT)
MIN MAX
00 7f ff
00 7f ff
00 7f(fix.) ff
00 3f(fix.) 7f
00 3f 7f
00 3f 7f