Sanyo PLC-UF15, Service Manual

Page: 47 / 148

-47-
8. Contrast adjustments-PC
Equipment Oscilloscope.
Input mode Computer.
Input signal 16 step gray scale 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
200 - 8
TP2526 (Green contrast adjustment)
200 - 9
TP2516 (Red contrast adjustment)
200 - 10
TP2536 (Blue contrast adjustment)
A
Black Level
Pedestal
Level
9. Contrast adjustments-AV
Equipment Oscilloscope.
Input mode AV.
Input signal 16 step gray scale signal
Set the image to "Service mode."
Adjust each test point value part-A in a figure minimum amplitude with the
and - buttons.
Group No. Connection
210 - 8
TP2526 (Green contrast adjustment)
210 - 9
TP2516 (Red contrast adjustment)
210 - 10
TP2536 (Blue contrast adjustment)
A
Black Level
Pedestal
Level
10. Panel driving signal adjustments -AV
Equipment Oscilloscope.
Input mode AV.
Input signal 16 step gray scale signal
Picture condition Normal.
Set the image to "Service mode."
Adjust each item for below values with the and - buttons.
Group No. Connection Adjustment part.
Adjustment or adjustment value.
210 - 11 TP2526(Green)
Amplitude-A in a figure.
4.1 ± 0.05Vp-p
210 - 12 TP2526(Green)
Amplitude-B in a figure.
1.8 ± 0.05Vp-p
210 - 13 TP2516(Red)
Amplitude-A in a figure.
4.1 ± 0.05Vp-p
210 - 14 TP2516(Red)
Amplitude-B in a figure.
1.8 ± 0.05Vp-p
210 - 15 TP2536(Blue)
Amplitude-A in a figure.
4.1 ± 0.05Vp-p
210 - 16 TP2536(Blue)
Amplitude-B in a figure.
1.8 ± 0.05Vp-p
11. Panel driving signal adjustments -PC
Equipment Oscilloscope.
Input mode Computer
Input signal 16 step gray scale signal
Set the image to "Service mode."
Adjust each item for below values with the and - buttons.
Group No. Connection Adjustment part.
Adjustment or adjustment value.
200 - 11 TP2526(Green)
Amplitude-A in a figure.
4.1 ± 0.05Vp-p
200 - 12 TP2526(Green)
Amplitude-B in a figure.
1.7 ± 0.05Vp-p
200 - 13 TP2516(Red)
Amplitude-A in a figure.
4.1 ± 0.05Vp-p
200 - 14 TP2516(Red)
Amplitude-B in a figure.
1.7 ± 0.05Vp-p
200 - 15 TP2536(Blue)
Amplitude-A in a figure.
4.1 ± 0.05Vp-p
200 - 16 TP2536(Blue)
Amplitude-B in a figure.
1.7 ± 0.05Vp-p
J
A
B
A
B