Eeprom Initialization; White Balance Adjustment; Performance Check; Tv Function - Sanyo PDP-42XS1 Service Manual

3.4 EEPROM initialization

Enter page one of the factory menu, select the EEPROM INITIALIZE to ON.

3.5 White balance adjustment

The eight level gray-scale signal of FLUKE PW5148 video generator sends to AV channel, enter the
factory menu white balance adjustment page. Select the standard color temperature item, fixed the
R GAIN to be 32H, adjust the seventh color coordinate (284, 299) of B, G GIAN; fixed the R
OFFSET to be 32H, adjust the second color coordinate (284,299) of B, G OFFSET.
Note: adjust white balance of standard color temperature of the AV channel, other four channel due
to the software auto adjustment, under the 1200k(270,283), 6500K(313,329) due to the software
pre-set.
Cool and warm color temperature pre-set of the AV channel as follows table:
AV channel Cool (1200K)
R Offset 32H
G Offset 2BH
B Offset 35H
R Gain 32H
G Gain 4AH
B Gain 3FH

4 Performance check

4.1 TV function

Enter the search menu → auto search, connect RF-TV terminal to the central signal source, check if
there is station skipping.
4.2 AV/S input terminal
Input AV/S signal, check the picture and sound is normal
4.3 SCART terminal (note: check the SCART terminal, set display mode to AUTO)
4.3.1 Check SCART INPUT special function
4.3.1.1 SCART1 terminal function
a. After turn on the unit, connect the SCART1 to PM54200 signal generator, then the unit auto
select to SCART1 mode.
b. SCART signal generator sends CVBS signal to the unit; check if the image and sound is normal.
It sends image format (16:9 and 4:3) to the unit, check if the unit auto identify is normal. Change
SCART signal to RGB signal; check if the image and sound is normal, It sends image format (16:9
and 4:3) to the unit, check the unit auto identify is normal. Select the PIP mode, connect earphone
cable, and check if the sound is normal.
4.3.1.2 SCART2 terminal function
a. After turn on the unit, connect the SCART2 to PM54200 signal generator, then the unit auto
select to SCART2 AV mode.
b. SCART signal generator sends CVBS signal to the unit, check if the image and sound is normal.
It sends image format (16:9 and 4:3) to the unit, check if the unit auto identify is normal, and display
the SCART2 AV. Change SCART signal to Y/C signal, select the SCART2 Y/C channel mode,
check if the image and sound is normal, It sends image format (16:9 and 4:3) to the unit, check if the
unit auto identify is normal. Select the PIP mode, connect earphone cable, and check if the sound is
Warm (6500K)
32H
2BH
32H
32H
39H
22H
4