Service manual

23
LC-20C3U-S
Page Item Initial setting Function Adjust/modify
18 NTSC F1 00 Inverter frequency setting
NTSC F2 00 Inverter duty setting
NTSC F3 C0 Dimmer frequency setting, lower level
NTSC F4 00 Dimmer frequency setting, upper level
NTSC F5 00 Dimmer PWM setting, lower level
NTSC F6 00 Dimmer PWM setting, upper level
NTSC F7 00 OFL 1/2 phase
NTSC 14 02 System clock setting
G/A TEST PATERN OFF Gradation test pattern display LCD controller IC test pattern
19 PAL 01 8E Initial settings
PAL 02 C8 Various settings
PAL 03 81 RCUTOFF
PAL 04 00 GCUTOFF
PAL 05 81 BCUTOFF
PAL 06 14 Horizontal display position
PAL 07 18 Vertical display position
PAL 08 O2 UV data phase delay
PAL 09 4C Panel clock adjustment
PAL 0A 4A Display screen top/bottom mask position
PAL 10 80 Test pattern display
PAL 11 00 Test pattern data
PAL 12 00 Horizontal display mask (Left) position
PAL 13 00 Horizontal display mask (Right) position
PAL E0 00 FIFO TEST
PAL E1 03 Sync polarity reversal
PAL F0 07 OFL terminal operation setting
PAL F1 00 Inverter frequency setting
PAL F2 00 Inverter duty setting
PAL F3 BD Dimmer frequency setting, lower level
PAL F4 00 Dimmer frequency setting, upper level
PAL F5 00 Dimmer PWM setting, lower level
PAL F6 00 Dimmer PWM setting, upper level
PAL F7 00 OFL 1/2 phase
PAL 14 02 System clock setting
CLOSED CAPTION 15 Closed caption thresh level
CCD ISO 16 Closed caption phase setting
AIR SERCH 1.6 Last synchronous judging frequency at the AIR CH SEARCH
20 V255 255 Gradation power reference voltage
V255 BIAS 127 Gradation power reference voltage
V235 222 Gradation power reference voltage
V235 BIAS 127 Gradation power reference voltage
V176 130 Gradation power reference voltage
V176 BIAS 150 Gradation power reference voltage
V112 96 Gradation power reference voltage
V112 BIAS 170 Gradation power reference voltage
V64 65 Gradation power reference voltage
V64 BIAS 40 Gradation power reference voltage
V32 72 Gradation power reference voltage
V32 BIAS 100 Gradation power reference voltage
21 V21 45 Gradation power reference voltage
V21 BIAS 50 Gradation power reference voltage
V17 52 Gradation power reference voltage
V17 BIAS 145 Gradation power reference voltage
V7 27 Gradation power reference voltage
V7 BIAS 65 Gradation power reference voltage
V0 0 Gradation power reference voltage
V0 BIAS 80 Gradation power reference voltage
VGL ADJ 27 VGL bias setting
VGL COM 215 VGL COM setting
COM 179 COM amplitude setting
G/A READDATA 00 00 Controller read data setting
G/A READDATA WAIT Read execution
Gradation & COM settings