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2.11 PC/AV-Video Adjustment-2
[PC-video adjustment-2]
1. Receive the 16-step gray scale computer signal.
2. Set to COMPUTER mode.
3. Connect an oscilloscope to test point "TP512" (+) and chassis ground (-).
4. Enter to the service mode, select item no. "15" and change data value to adjust "b" to
be 1.90 ±0.01Vp-p.
[AV-video adjustment-2]
5. Receive the 16-step gray scale video signal.
6. Set to VIDEO mode.
7. Connect an oscilloscope to test point "TP512" (+) and chassis ground (-).
8. Select item no. "15" and change data value to adjust "b" to be 2.00 ±0.01Vp-p.
2.12 S/H Clock Adjustment
1. Receive the 16-step gray scale computer signal.
2. Set to COMPUTER mode.
3. Connect an oscilloscope to test point "TP512" (+) and chassis ground (-).
4. Enter to the service mode, select item no. "3" and change data value to adjust "a" to
be maximum.
white level
(b)
white level
(a)
black level
Fig. 3-9
(a)
Fig. 3-10
3-13
Part 3: Adjustment
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