LG 42PC1R Series, Service Manual

Page: 13 / 41

4. Auto AV(CVBS) Color Balance
4-1. Requirement
O
It is very import to use correct adjustment pattern like (Fig.4).
A
Within the pattern, color sequence should be aligned :
W-Y-C-G-M-R-BLUE-BLACK.
(If color sequence is reversed (Black ->...-> White),
reverse the pattern with REV key, when using Master
pattern generator like MSPG-925)
A
If Minimum Black Level and/or Maximum White Level is
not correct, Do select 100% Color Bar Pattern.
4-2. Required Test Equipment
1) Remote controller for adjustment.
2) AV Pattern Generator : 802F Pattern Generator,
Master(MSPG-925FA), etc.
(Which has PAL Composite Video format output with
standard(1.0 Vpp) Vertical 100% Color Bar Pattern as Fig. 4)
4-3. Method of Auto RGB Color Balance
1) Input the PAL Composite Video (Fig.4. 100% Color Bar
Pattern) into video input.
2) If Assy has Scart jack ,Use AV3
Else use AV1.
3) Press INSTART key on R/C for adjustment.
4) Press the
G (Vol.+) key operate to set , then it becomes
automatically.
5) Auto-RGB OK means completed adjustment.
5. Auto Component Color Balance
5-1. Requirement
O
It is very import to use correct adjustment pattern like (Fig.5).
A
Within the pattern, color sequence should be aligned :
W-Y-C-G-M-R-BLUE-BLACK.
(If color sequence is reversed (Black ->...-> White),
reverse the pattern with REV key, when using Master
pattern generator like MSPG-925)
A
If Minimum Black Level and/or Maximum White Level is
not correct, Do select 100% Color Bar Pattern.
5-2. Required Test Equipment
1) Remote controller for adjustment.
2) 802F Pattern Generator.
( Which has 720p YpbPr output with Standard(0.7Vpp)Vertical
100% Color Bar Pattern as Fig. 5 )
5-3. Method of Auto RGB Color Balance
1) Input the Component 720p 100% Color Bar signal into
Component1 or Component2.
2) Set the PSM to Dynamic mode in Picture menu.
3) Press INSTART key on R/C for adjustment.
4) Press the
G (Vol.+) key operate To set , then it becomes
automatically.
5) Auto-RGB OK means completed adjustment.
6. Auto RGB Color Balance
6-1. Requirement
O
It is very import to use correct adjustment pattern like (Fig.6).
A
Within the pattern, color sequence should be aligned :
W-Y-C-G-M-R-BLUE-BLACK.
(If color sequence is reversed (Black ->...-> White),
reverse the pattern with REV key, when using Master
pattern generator like MSPG-925)
A
If Minimum Black Level and/or Maximum White Level is
not correct, Do select 100% Color Bar Pattern.
6-2. Required Test Equipment
1) Remote controller for adjustment.
2) 802F Pattern Generator, Master (MSPG-925FA), etc.
( Which has XGA 60Hz PC Format output with
standard(0.7Vpp) 100 % Color Bar Pattern as Fig. 6 )
6-3. Method of Auto RGB Color Balance
1) Input the PC 1024x768 @ 60Hz 100 % Color Bar Pattern
into RGB.
2) Set the PSM to Dynamic mode in Picture menu.
3) Press INSTART key on R/C for adjustment.
4) Press the
G (Vol.+) key operate To set , then it becomes
automatically.
5) Auto-RGB OK means completed adjustment.
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(Fig. 4) Auto AV(CVBS) Color Balance Test Pattern
(Fig. 6) Auto RGB Color Balance Test Pattern
(Fig. 5) Auto Component Color Balance Test Pattern