-30-
1. Receive the 16-step gray scale computer signal.
2. Set to COMPUTER mode.
3. Connect an oscilloscope to test point “TP581” (+) and
chassis ground (-).
4. Enter to the service mode, Select data no. “004” and
change data value to adjust “a” to be 3.8 ±0.1Vp-p.
5. Select data no. “003” and change data value to adjust
“b” to be 10.0±0.1Vp-p.
(a)
(b)
PSIG ADJUSTMENT
Electrical Adjustments
Presetting
1. Receive the 16-step grey scale computer signal.
2. Set to COMPUTER mode.
[R-PEDESTAL ADJUSTMENT-1]
3. Connect an oscilloscope to test point “TP1501” (+)
and chassis ground (-).
4. Enter to the service mode, select data no. “005” and
change data value to adjust the pedestal level and
black level to be same level.
[G-PEDESTAL ADJUSTMENT-1]
5. Connect an oscilloscope to test point “TP1531” (+)
and chassis ground (-).
6. Select data no. “007” and change data value to adjust
the pedestal level and black level to be same level.
[B-PEDESTAL ADJUSTMENT-1]
7. Connect an oscilloscope to test point “TP1561” (+)
and chassis ground (-).
8. Select data no. “009” and change data value to adjust
the pedestal level and black level to be same level.
Pedestal level = Black level
PEDESTAL ADJUSTMENT-[CG]
Presetting
1. Receive the 16-step grey scale computer signal.
2. Set to COMPUTER mode.
[R-GAIN ADJUSTMENT-1]
3. Connect an oscilloscope to test point “TP1501” (+)
and chassis ground (-).
4. ENter to the service mode, select data no. “006” and
change data value to adjust “a” to be minimum ampli-
tude.
[G-GAIN ADJUSTMENT-1]
5. Connect an oscilloscope to test point “TP1531” (+)
and chassis ground (-).
6. Select data no. “008” and change data value to adjust
“a” to be minimum amplitude.
[B-GAIN ADJUSTMENT-1]
7. Connect an oscilloscope to test point “TP1561” (+)
and chassis ground (-).
8. Select data no. “00A” and change data value to adjust
“a” to be minimum amplitude.
Pedestal level = Black level
(a)
GAIN ADJUSTMENT-[CG]
Summary of Contents for PLC-EF10BA
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Page 66: ... 65 TDA8395T SECAM Decoder IC6103 IC Block Diagrams ...
Page 109: ...Nov 99 1300 SI Printed in Japan SANYO Electric Co Ltd ...
