Sanyo C20LB88B Service Manual page 9

Service Adjustments
On-screen Service Menu
Following table shows the initial values which have been stored in the CPU ROM, and items for the service
adjustments.
No. Item Initial value
01 RFAGC
02 H-PHA
03 V-POS
04 V-SIZ
05 V-SCO
06 VLIN
07 H-P60
08 V-P60
09 V-S60
10 VSC60
11 VLI60
12 OSDHP
13 OSDC
14 V-SCP
15 SBIAS
16 RBIAS
17 GBIAS
18 BBIAS
19 RDRIV
20 GDRIV
21 BDRIV
22 - -
23 DRV
24 B-YD
25 R-YD
26 B-YND
27 R-YND
28 G-YA
29 RBGB
30 RBAG
31 G-YAN
32 RBGBN
33 RBABN
34 COGV
35 BLK
36 BLKG
37 BRTA
38 BRST
39 BRTH
40 WPL
41 YGAM
42 PORW
43 PORS
44 RFCO
45 PORWN
46 PORSN
47 TINT
48 SHRF
49 TEXC
50 AUFL
To be continued.
Range Description
06 00~63 RF AGC adjustment
08 00~31 H-PHASE adjustment (50Hz)
32 00~63 Vertical position adjustment (50Hz)
54 00~127 Vertical size adjustment (50Hz)
17 00~31 Vertical-S compensation (50Hz)
15 00~31 Vertical linearity adjustment (50Hz)
+4 -16~+15 Difference value of H-PHASE adjustment (60Hz)
0 -32~+31 Difference value of V-POSITION adjustment (60Hz)
+1 -64~+63 Difference value of V-SIZE adjustment (60Hz)
0 -16~+15 Difference value of Vertical-S compensation (60Hz)
+1 -16~+15 Difference value of Vertical linearity adjustment (60Hz)
30 01~255 OSD horizontal remark position
50 00~127 OSD contrast
07 00~07 V-SIZE COMP (50Hz)
70 00~127 Sub Bias adjustment
00 00~255 Red Bias adjustment
00 00~255 Green Bias adjustment
00 00~255 Blue Bias adjustment
63 00~127 Red Drive adjustment
07 00~15 Green Drive adjustment
63 00~127 Blue Drive adjustment
- - - - White balance (a lateral line)
- - - - Brightness and dark of White balance adjustment
10 00~15 B-Y DC Level
10 00~15 R-Y DC Level
0 -16~+15 Difference value of NTSC B-Y DC Level
0 -16~+15 Difference value of NTSC R-Y DC Level
00 00,01 G-Y Angle
08 00~15 R-Y/B-Y Gain Balance
08 00~15 R-Y/B-Y Angle
00 00,01 Difference value of NTSC G-Y Angle
0 -8~+7 Difference value of NTSC R-Y/B-Y Gain Balance
0 -8~+7 Difference value of NTSC R-Y/B-Y Angle
01 00~03 Coring gain
03 00~03 BLK. STR. Start (W/Defeat)
03 00~03 BLK. STR. Gain
00 00, 01 BRT. ABL Defeat
00 00, 01 Mid. Stp. Defeat
00 00~07 Bright. ABL. Threshold
00 00~03 WPL Ope. Point (W/Defeat)
00 00~03 Y Gamma Start
00 00, 01 AV Mode Pre/Over SW
02 00~03 AV Mode Pre/Over-shoot adjustment
0 00~03 Difference Value of RF Corring Gain
01 00, 01 RF Pre/Over SW
03 00~03 RF Pre/Over-shoot adjustment
0 -16~+15 Tint
0 -16~+15 Difference Value of RF Sharpness
08 00~127 OSD Text Contrast
00 00, 01 Auto. Fresh
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