Service manual

20
LC-20B4U-S
LC-20B4U-B
Table of Adjusting Process Defaults
1000 order 100 and 10 orders
Item Initial Values Min. Value Max. Value Display Content
Title No. Page No.
0 1 MODEL A620 ←
INCH SIZE 20 → 13/15/20
ERROR NO RESET 0 0 5 Decimal
PUBLIC MODE OFF → ON/OFF
V-CHIP 1 → 1/2
CANADIAN VCHIP OFF → ON/OFF
EXT CONTROL OFF → ON/OFF
VPC SHARPNESS ON → ON/OFF
0 2 COM BIAS 110 0 255 Decimal
TAMP L 187 0 255 Decimal
YDATA – 0 255 Decimal
TAMP H 202 0 255 Decimal
NTSC TAMP 20 0 63 Decimal
PAL-M TAMP 20 0 63 Decimal
PAL-N TAMP 20 0 63 Decimal
0 3 RCUTOFF 0 -63 63 +/- decimal
GCUTOFF 0 -63 63 +/- decimal
BCUTOFF 0 -63 63 +/- decimal
R-GAIN 0 -63 63 +/- decimal
G-GAIN 0 -63 63 +/- decimal
B-GAIN 0 -63 63 +/- decimal
D2 RCUTOFF 0 -63 63 +/- decimal
D2 GCUTOFF 0 -63 63 +/- decimal
D2 BCUTOFF 0 -63 63 +/- decimal
D2 R-GAIN 0 -63 63 +/- decimal
D2 G-GAIN 0 -63 63 +/- decimal
D2 B-GAIN 0 -63 63 +/- decimal
0 4 I2C DATA
I2C DATA
SOUND
VPC
DPS
DAC
TUNER
OTHERS
1 SOUND1 VOLUME 20 0 60 Decimal
AVC OFF → OFF/8SEC
/4SEC
/2SEC/20MS
MSP DATA 0 – – –
MSP DATA WAIT – – –
CARRIER MUTE ON → ON/OFF
SP TEST OFF → OFF/LR
1 SOUND2 PRESCALE SCART 27 0 127 Decimal
PRESCALE FM/AM-M 33 0 127 Decimal
IGR THR 12D 0A0 7F0 Hexadecimal
Selection of model name (For prevention of malfunction, it is
impossible to change it.)
Selection of screen size (inch)
Lamp error count and reset
Hotel mode setting
VCHIP line MUTE setting
Setting for responding to CANADIAN VCHIP
Bus, UART opening ON/OFF (OSD display is not changed.)
Adjustment or no adjustment of SHARPNESS by VPC (No effect by D2)
EDS data captured is displayed at the top.
ROM and GAIBU version No. are displayed at the bottom.
Opposed bias adjustment
Setting Y lower limit value in TAMP adjustment
Data READ value in TAMP adjustment
Setting Y upper limit value in TAMP adjustment
TAMP adjustment
TAMP adjustment
TAMP adjustment
Red cut-off adjustment
Green cut-off adjustment
Blue cut-off adjustment
White balance
White balance
White balance
Red cut-off adjustment (D2)
Green cut-off adjustment (D2)
Blue cut-off adjustment (D2)
White balance (D2)
White balance (D2)
White balance (D2)
I
2
C BUS control IC data WRITE and READ
Execution of WRITE and READ
Goes to SOUND adjustment page.
Goes to VPC adjustment page.
Goes to DPS adjustment page.
Goes to DAC adjustment page.
Goes to TUNER adjustment page.
Goes to other adjustment page.
Volume
AVC setting
Sound IC MSP data WRITE and READ
Execution of WRITE and READ
Sound output setting without TV sync
For sound test
Pre-scale setting (External input)
Pre-scale setting (TV)
IGR Thresh level