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Electrical Adjustments
v
NRS adjustment
1. Receive the 16-step gray scale computer signal with
Input 1 [RGB(Analog)] mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point "
and chassis ground (-).
5
4. Select group no. "
", item no. "
value to adjust amplitude "a" to be
3
5. Select item no. "
" and change data value to adjust
7.0
amplitude "b" to be
(a)
b
Video center adjustment
1. Receive the 16-step gray scale computer signal with
Input 1 [RGB(Analog)] mode.
2. Enter the service mode.
3. Connect a digital voltmeter to test point "
and chassis ground (-).
5
4. Select group no. "
", item no. "
value to adjust the voltage to be
5. Connect a digital voltmeter to test point "
and chassis ground (-).
6
6. Select item no. "
" and change data value to adjust
6.50
the voltage to be
7. Connect a digital voltmeter to test point "
and chassis ground (-).
7
8. Select item no. "
" and change data value to adjust
6.50
the voltage to be
9. Connect a digital voltmeter to test point "
and chassis ground (-).
5
10. Select group no. "
", item no. "
value to adjust the voltage to be
11. Connect a digital voltmeter to test point "
and chassis ground (-).
9
12. Select item no. "
" and change data value to adjust
7.50
the voltage to be
13. Connect a digital voltmeter to test point "
and chassis ground (-).
10
14. Select item no. "
" and change data value to adjust
7.50
the voltage to be
TPNRS
4
" and change data
2.0
±0.1V.
±0.1V.
(b)
GND
TPV1G
5
" and change data
6.50
±0.1Vdc.
TPV1B
±0.1Vdc.
TPV1R
±0.1Vdc.
TPV2G
8
" and change data
7.50
±0.1Vdc.
TPV2B
±0.1Vdc.
TPV2R
±0.1Vdc.
n
PC black Level adjustment
1. Receive the 16-step gray scale computer signal with
Input 1 [RGB(Analog)] mode.
2. Enter the service mode.
" (+)
3. Connect an oscilloscope to test point "
and chassis ground (-).
4. Select group no. "
value to adjust amplitude "a" to be
3. Connect an oscilloscope to test point "
and chassis ground (-).
4. Select item no. "
amplitude "a" to be
3. Connect an oscilloscope to test point "
and chassis ground (-).
4. Select item no. "
amplitude "a" to be
black level
black level
" (+)
m
PC pedestal adjustment
1. Receive the 16-step gray scale computer signal with
" (+)
Input 1 [RGB(Analog)] mode.
2. Enter the service mode.
3. Select group no. "
value to adjust the green noise on the white 0% area
" (+)
of screen to the first point of the deepest green.
4. Select item no. "
the blue noise on the white 0% area of screen to the
first point of the deepest blue.
4. Select item no. "
" (+)
the red noise on the white 0% area of screen to the
first point of the deepest red.
" (+)
" (+)
-8-
TP35G
5
0
", item no. "
" and change data
10.0
±0.1V.
TP35B
1
" and change data value to adjust
10.0
±0.1V.
TP35R
2
" and change data value to adjust
10.0
±0.1V.
(a)
500
0
", item no. "
" and change data
1
" and change data value to adjust
2
" and change data value to adjust
" (+)
" (+)
" (+)
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