Sanyo PLC-SU50

-6-
Electrical Adjustments
1. Receive the 16-step grey scale computer signal with
Computer2 [RGB] mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “
TPG1” (+) and
chassis ground (-).
4. Select group no. “
0”, item no. “0” and change data
value to adjust the pedestal level and black level to be
the same level.
5. Connect an oscilloscope to test point “TPR1” (+) and
chassis ground (-).
6. Select item no. “1” and change data value to adjust the
pedestal level and black level to be the same level.
7. Connect an oscilloscope to test point “TPB1” (+) and
chassis ground (-).
8. Select item no. “2” and change data value to adjust the
pedestal level and black level to be the same level.
Pedestal Lebel
Black Lebel
x Clamp adjustment [PC]
1. Receive the 16-step grey scale component signal
with Computer2 [Component] mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “TPG1”(+) and
chassis ground (-).
4. Select group no. “0”, item no. “0” and change data
value to adjust the pedestal level and black level to be
the same level.
5. Connect an oscilloscope to test point “TPR1”(+) and
chassis ground (-).
6. Select group no. “0”, item no. “1” and change data
value to adjust the pedestal level and black level to be
the same level.
7. Connect an oscilloscope to test point “TPB1”(+) and
chassis ground (-).
8. Select group no. “0”, item no. “2” and change data
value to adjust the pedestal level and black level to be
the same level.
Pedestal Lebel
Black Lebel
v Clamp adjustment [COMPONENT]
1. Receive the 16-step gray scale composite video sig-
nal with Video [Video] mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “TPG1” (+) and
chassis ground (-).
4. Select group no. “0”, item no. “0” and change data
value to adjust the pedestal level and black level to be
the same level.
5. Connect an oscilloscope to test point “TPR1” (+) and
chassis ground (-).
6. Select item no. “1” and change data value to adjust the
pedestal level and black level to be the same level.
7. Connect an oscilloscope to test point “TPB1” (+) and
chassis ground (-).
8. Select item no. “2” and change data value to adjust the
pedestal level and black level to be the same level.
Pedestal Lebel
Black Lebel
c Clamp adjustment [AV]