Service manual

19
LC-20C3U-S
Adjustment process mode menus at a glance
Page Item Initial setting Function Adjust/modify
1 MODEL A460 Model number
INCH SIZE 20 Inch unit select Adjustment
SYSTEM N358 Color system select
NTSC PWN FREQ OCO Dimmer frequency setting
PAL PWM FREQ OBD Dimmer frequency setting
NTSC PWM DUTY 0 Dimmer duty setting
PAL PWM DUTY 0 Dimmer duty setting
TV GAIN OFF Auto gain setting in TV mode
ERROR NO RESET 0 Lamp error count & reset No. of lamp error detections
PUBLIC MODE OFF HOTEL MODE
V-CHIP 1 VCHIP line mute setting
CANADIAN VCHIP OFF Canadian VCHIP setting
VER Microprocessor Ver. No. display
Basic settings
2 COM BIAS 90 Counter bias adjustment Adjustment
NTSC TAMP 20 TAMP adjustment Adjustment
PAL-M TAMP 20 TAMP adjustment Adjustment (Same setting as for NTSC TAMP)
PAL-N TAMP 20 TAMP adjustment Adjustment (Same setting as for NTSC TAMP)
RCUTOFF -1 White balance adjustment (Red) Adjustment
GCUTOFF 0 Green cutoff adjustment
BCUTOFF -1 White balance adjustment (Blue) Adjustment
G3 00 Data read value
B3 00 Data read value
R3 00 Data read value
G1 00 Data read value
B4 00 Data read value
Y 00 Data read value at TAMP adjustment Adjustment
TAMP H CA Y upper limit setting at TAMP adjustment
TAMP L BB Y lower limit setting at TAMP adjustment
GAIBU VER External version display
3 TV NTSC CONT 51 Video contrast setting (TV NTSC)
TV PAL-M CONT 51 Video contrast setting (TV PAL-M)
TV PAL-N CONT 51 Video contrast setting (TV PAL-N)
AV N358 CONTRAST 49 Video contrast setting (Composite, S Video)
AV PAL CONTRAST 49 Video contrast setting (Composite, S Video)
AV SECAM CONTRAST 49 Video contrast setting (Composite, S Video)
AV PAL-M CONTRAST 49 Video contrast setting (Composite, S Video)
AV PAL-N CONTRAST 49 Video contrast setting (Composite, S Video)
AV PAL60 CONTRAST 49 Video contrast setting (Composite, S Video)
G3 00 Data read value
B3 00 Data read value
R3 00 Data read value
G1 00 Data read value
B4 00 Data read value
Y 00 Data read value
Video adjustments
4 VOLUME 20 Volume
L-BOOST TEST OFF Adjustment process ultra-bass switch
PRESCALE SCART 27 Pre-scale setting (External input)
PRESCALE FM/AM-M 33 Pre-scale setting (TV)
AVC OFF AVC setting
MSP DATA 0 Audio IC MSP data write & read
MSP DATA WAIT Write & read execution
CARRIER MUTE ON Audio output setting out of sync with TV
IGR THR 12D IGR THRESH LEVEL
SP TEST OFF Audio test (FS mute 1.2 ON/OFF)
5 WF LVL+ -10 WF level adjustment (Ultra-bass ON)
WF LVL- -24 WF level adjustment (Ultra-bass OFF)
WF FRQ+ 190 WF LPF cut-off frequency setting (Ultra-bass ON)
WF FRQ- 190 WF LPF cut-off frequency setting (Ultra-bass OFF)
WF HPF+ 00 LR HPF switch (Ultra-bass ON)
Audio adjustments