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LG 42LC2RH Service Manual page 12

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5. ADC Calibration
5.1 Adjustment of RF/AV/S-VIDEO
* Required Equipments
• Remote controller for adjustment
• 802F Pattern Generator, Master (MSPG-925FA), etc.
• MSPG-925FA Pattern Generator
(Which has Video Signal: 100% Color Bar Pattern
shown in Fig. 1)
= > Model : 202 / Pattern: 33 (PAL : ZH, TH)
Model : 201 / Pattern : 33 (NTSC : MH)
5.1.1 Method of Auto RF/AV/S-VIDEO Color Balance.
1) Press the FRONT-AV KEY on R/C for converting input
mode.
2) Input the Video Signal: 100% Color Bar signal into
AV3(ZH), AV1(TH), VIDEO1(MH)
3) Set the PSM to Standard mode in the Picture menu.
4) Press INSTART key on R/C for adjustment.
5) Press the
(Vol.+) key to operate the set, then it becomes
automatically
6) Auto-RGB OK means the adjustment is completed
5.1.2 Requirement
• This AV color balance adjustment should be performed
before White Balance Adjustment.
• After AV color balance adjustment, change the mode from
AV to RF.(Cencel Heat-run mode).
5.2 Adjustment of Component.
* Required Equipments
• Remote controller for adjustment
• 802F Pattern Generator, Master (MSPG-925FA), etc.
• MSPG-925FA Pattern Generator
(Which has 720p YPbPr signal : 100% Color Bar
Pattern shown in Fig. 2 )
= > Model: 217 / Pattern: 33
• It is very import to use correct adjustment pattern like
Fig. 2.
- 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)
- If Minimum Black Level and/or Maximum White
Level is not correct, Do select 100% Color Bar
Pattern.
(Fig. 1)
5.2.1 Method of Auto Component Color Balance
1) Input the Component 720p 100% Color Bar(MSPG-925FA
model:217, pattern:33) signal into Component.
(ZH : component , TH/MH : component 1 or 2)
2) Set the PSM to Standard mode in the Picture menu.
3) Press the INSTART key on R/C for adjustment.
4) Press the
(Vol. +) key to operate the set , then it
becomes automatically.
5) Auto-RGB OK means the adjustment is completed.
5.3 Adjustment of RGB
* Required Equipments
• Remote controller for adjustment
• 802F Pattern Generator, Master (MSPG-925FA), etc.
• MSPG-925FA Pattern Generator
(Which has XGA [1024x768] 60Hz PC Format output
signal : 100% Color Bar Pattern shown in Fig. 3 )
• It is very import to use correct adjustment pattern like.
- 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)
- If Minimum Black Level and/or Maximum White
Level is not correct, Do select 100% Color Bar
Pattern.
5.3.1 Method of Auto RGB Color Balance
1) Input the PC 1024x768@60Hz 1/2 Black&White Pattern
(MSPG-925FA model:3, pattern:33) into RGB.
2) Set the PSM to Standard mode in Picture menu.
3) Press the INSTART key on R/C for adjustment.
4) Press the
(Vol. +) key operate To set , then it becomes
automatically.
5) Auto-RGB OK means adjustment is completed.
=> Caution : Before White-balance, the AV ADC should
be done. (ZH:AV3, TH:AV1, MH:VIDEO1)
=> After Aging, When the procedure is changed White
balance adjustment, it will be canceled Heat_run mode
auto.
(Notice : Before White-balance, change input mode Move
to AV3(ZH) or AV1(TH) or VIDEO1(MH) by using
the FRONT-AV KEY on Remote controller.)
- 12 -
(Fig. 2)
(Fig. 3)

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