Service manual

LC-20B1U
18
Adjustment process mode menus at a glance
Page Item Initial setting Function Adjust/modify
1 INCH SIZE 20 Inch size select Adjustment
MODEL B1U Model number
CARD ON
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
V-CHIP 1 VCHIP line mute setting
CANADIAN VCHIP OFF Canadian VCHIP setting
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 Red cutoff adjustment Adjustment
GCUTOFF 0 Green cutoff adjustment
BCUTOFF -1 Blue cutoff adjustment 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
TAMP H CA Y upper limit setting at TAMP adjustment
TAMP L BB Y lower limit setting at TAMP adjustment
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 TV GEQ BAND1 +0.5 Equalizer setting 1 (TV)
TV GEQ BAND2 +0.5 Equalizer setting 2 (TV)
TV GEQ BAND3 +1.0 Equalizer setting 3 (TV)
TV GEQ BAND4 +0.5 Equalizer setting 4 (TV)
TV GEQ BAND5 –1.0 Equalizer setting 5 (TV)
EXT GEQ BAND1 +0.5 Equalizer setting 1 (external input)
EXT GEQ BAND2 +0.5 Equalizer setting 2 (external input)
EXT GEQ BAND3 +1.0 Equalizer setting 3 (external input)
EXT GEQ BAND4 +0.5 Equalizer setting 4 (external input)
EXT GEQ BAND5 –1.0 Equalizer setting 5 (external input)
AVC OFF AVC setting
CARRIER MUTE ON Audio output setting out of sync with TV
IGR THR 12D IGR THRESH LEVEL
5 MSP DATA 0 Audio IC MSP data write & read
MSP DATA WAIT Write & read execution
PRESCALE FM/AM-M 17 Pre-scale setting (TV)
PRESCALE SCART 15 Pre-scale setting (external input)
FSP TEST OFF Audio test (FS mute ON/OFF)
Audio adjustments (MSP settings)
Note: Microprocessor’s Version is displayed on the bottom of a screen.