Canon LV-S4, Руководство по обслуживанию

Страница: 28 / 52

-28-
1. Receive the 16-step gray scale component signal
( 480i format) with COMPUTER IN [COMPONENT]
mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “
TPG1
” (+) and
chassis ground (-).
4. Select item no. “
7
” and change data value to adjust
waveform “ a ” to be minimum amplitude.
5. Connect an oscilloscope to test point “
TPR1
” (+) and
chassis ground (-).
6. Select item no. “
8
” and change data value to adjust
waveform “ a ” to be minimum amplitude.
7. Connect an oscilloscope to test point “
TPB1
” (+) and
chassis ground (-).
8. Select item no. “
9
” and change data value to adjust
waveform “ a ” to be minimum amplitude.
(a)
White Level
1. Receive the 16-step gray scale component signal
( 480p format) with COMPUTER IN [COMPONENT]
mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “
TPG1
” (+) and
chassis ground (-).
4. Select item no. “
7
” and change data value to adjust
waveform “ a ” to be minimum amplitude.
5. Connect an oscilloscope to test point “
TPR1
” (+) and
chassis ground (-).
6. Select item no. “
8
” and change data value to adjust
waveform “ a ” to be minimum amplitude.
7. Connect an oscilloscope to test point “
TPB1
” (+) and
chassis ground (-).
8. Select item no. “
9
” and change data value to adjust
waveform “ a ” to be minimum amplitude.
(a)
White Level
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 item no. “
7
” and change data value to adjust
waveform “ a ” to be minimum amplitude.
5. Connect an oscilloscope to test point “
TPR1
” (+) and
chassis ground (-).
6. Select item no. “
8
” and change data value to adjust
waveform “ a ” to be minimum amplitude.
7. Connect an oscilloscope to test point “
TPB1
” (+) and
chassis ground (-).
8. Select item no. “
9
” and change data value to adjust
waveform “ a ” to be minimum amplitude.
(a)
White Level
c
Video Gain adjustment
Electrical Adjustments
b
480p Gain adjustment
n
480i Gain adjustment
1. Receive the 16-step gray scale component signal
( 480p format) with COMPUTER IN [COMPONENT]
mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “
TPG1
” (+) and
chassis ground (-).
4. Select item no. “
203
” 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. “
204
” 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. “
205
” and change data value to adjust
the pedestal level and black level to be the same
level.
Blac
k Lebel
P
edestal Lebel
v
480p Pedestal adjustment