Sharp 20F640 XFlat, Service Manual

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7
Adjustment Mode Items
No. Item Name IC Register Range Default
V01 SUB-PICTURE 1 Chip CONTRAST 0~127 127
V02 SUB-TINT 1 Chip TINT 0~127 64
V03 SUB-COLOR 1 Chip COLOR 0~127 64
V04 SUB-BRIGHT 1 Chip BRIGHT 0~255 128
V05 SUB-SHARP 1 Chip VIDEO-TONE 0~63 32
V06 V-SHIFT 1 Chip V-SHIFT 0~7 4
V07 H-SHIFT 1 Chip H-PHASE 0~31 16
V08 RF-AGC 1 Chip RF-Delay 0~127 127
V09 V-SIZE 1 Chip V-SIZE 0~63 32
V10 PIF-VCO 1 Chip VIF-VCO 0~63 32
V11 R-CUTOFF 1 Chip R-CUTOFF 0~255 127
V12 G-CUTOFF 1 Chip G-CUTOFF 0~255 127
V13 B-CUTOFF 1 Chip B-CUTOFF 0~255 127
V14 R-DRIVE 1 Chip R-DRIVE 0~127 64
V15 B-DRIVE 1 Chip B-DRIVE 0~127 64
V16 SUB-COLOR(YUV) 1 Chip COLOR 0~127 64
V17 SUB-TINT(YUV) 1 Chip BASEBAND-TINT 0~127 64
V18 CC-POS Micron 0~255 32
V19 (Vertical mode) 1 Chip V-MUTE,SERVICE 0, 1, 2 0
V20 SUB-VOL 1 Chip A-ATT 0~127 127
V21 H-VCO 1 Chip H-VCO 0~7 4
M01 MTS-ATT MTS ATT 0~15 10
M02 MTS-VCO MTS VCO 0~63 32
M03 MTS-FILTER MTS FILTER 0~63 28
M04 MTS-WIDEBAND MTS WIDEBAND 0~63 27
M05 MTS-SPECTRAL MTS SPECTRAL 0~63 32
M06 SUB-VOL MTS VOL 0~63 63
ADJUSTMENT METHOD
Caution: to get into the service mode, one of the ways is press direct key for service items. the other ways
is short the main chassis JA309 and JA402
There is three stage of Service Mode data
First stage data from V01 ~ M06
to go into second stage of service mode data, press MENU key
Second stage data from F01 ~ F51
to go into third stage of service mode data, press MENU key
Third stage data from 001 ~ 020
Below is the contents of these data
First Stage
Auto Adjustment Item
1. H-VCO (Currently need manual adj)
2. RF-AGC
3. PIF-VCO
4. MTS-FILTER
20F640