Sanyo PLC-XC50 - Page 32

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Electrical Adjustments
1. Enter the service mode.
2. Receive the 16-step grey scale computer signal with
Computer2 [RGB] mode.
3. Connect an oscilloscope to test point “TP_G1” (+)
and chassis ground (-).
4. In standard mode, select group no. “100”, item no.
“6” and change data value to adjust amplitude “a” to
be 1.6V.
(a)
white level
white level
7. 50% White adjustment [PC]
1. Enter the service mode,
2. Receive the 16-step gray scale computer signal with
Computer2 [RGB] mode.
3. Select group no. “100” item no. “7” (Red) or “8” (Blue),
and change Data values respectively to make a prop-
er white balance.
Confirm that the same white balance is obtained in video
and computer input.
8. White Balance adjustment [PC]
1. Enter the service mode.
2. Receive the 16-step grey scale composite video sig-
nal with Video mode.
3. Connect an oscilloscope to test point “TP_G1” (+)
and chassis ground (-).
4. In standard mode, select group no. “100”, item no.
“6” and change data value to adjust amplitude “a” to
be 1.6V.
(a)
white level
white level
9. 50% White adjustment [Video]
1. Enter the service mode.
2. Receive the 16-step grey scale composite video sig-
nal with Video mode.
3. Select group no. “100” item no. “7” (Red) or “8” (Blue),
and change Data values respectively to make a prop-
er white balance.
Confirm that the same white balance is obtained in video
and computer input.
10. White Balance adjustment [Video]