Sanyo PLC-XF40 Service Manual page 38

11. Pedestal level adjustments AV
Equipment
Input mode
Input signal
Set the image to "Service mode."
Adjust the pedestal level and black level in same level with the Volume + and - but-
tons.
However, the amplitude-A in a figure must not shrink.
Group No. Connection
TP2526 (Green pedestal level adjustment)
210- 5
TP2516 (Red pedestal level adjustment)
210- 6
TP2536 (Blue pedestal level adjustment)
210- 7
A
Black Level
12. Contrast adjustments-AV
Equipment
Input mode
Input signal
Set the image to "Service mode."
Adjust each test point value part-A in a figure minimum amplitude with the Volume
+ and - buttons.
Group No. Connection
TP2526 (Green contrast adjustment)
210- 8
TP2516 (Red contrast adjustment)
210- 9
TP2536 (Blue contrast adjustment)
210- 10
A
Black Level
Oscilloscope.
AV
16 step gray scale signal
Pedestal
Level
Oscilloscope.
AV.
16 step gray scale signal
Pedestal
Level
13. Panel driving signal adjustments -AV
Equipment
Input mode
Input signal
Picture condition
Set the image to "Service mode."
Adjust each item for below values with the Volume + and - buttons.
Group No. Connection
210- 11 TP2526(Green)
210- 12 TP2526(Green)
210- 13 TP2516(Red)
210- 14 TP2516(Red)
210- 15 TP2536(Blue)
210- 16 TP2536(Blue)
B
14. Panel driving signal adjustments -PC
Equipment
Input mode
Input signal
Set the image to "Service mode."
Adjust each item for below values with the Volume + and - buttons.
Group No. Connection
200- 11 TP2526(Green)
200- 12 TP2526(Green)
200- 13 TP2516(Red)
200- 14 TP2516(Red)
200- 15 TP2536(Blue)
200- 16 TP2536(Blue)
B
-41-
Oscilloscope.
AV.
16 step gray scale signal
Normal.
Adjustment part.
Adjustment or adjustment value.
4.1 ± 0.05Vp-p
Amplitude-A in a figure.
1.6 ± 0.05Vp-p
Amplitude-B in a figure.
4.1 ± 0.05Vp-p
Amplitude-A in a figure.
1.6 ± 0.05Vp-p
Amplitude-B in a figure.
4.1 ± 0.05Vp-p
Amplitude-A in a figure.
1.6 ± 0.05Vp-p
Amplitude-B in a figure.
A
Oscilloscope.
Computer
16 step gray scale signal
Adjustment part.
Adjustment or adjustment value.
4.1 ± 0.05Vp-p
Amplitude-A in a figure.
1.5 ± 0.05Vp-p
Amplitude-B in a figure.
4.1 ± 0.05Vp-p
Amplitude-A in a figure.
1.5 ± 0.05Vp-p
Amplitude-B in a figure.
4.1 ± 0.05Vp-p
Amplitude-A in a figure.
1.5 ± 0.05Vp-p
Amplitude-B in a figure.
A
C