Read Sony XTL-750W / XVM-750WEX Service Manual online
8
Adjustment Location:
γ
0 Adjustment
Procedure:
1. Display the gray scale on the monitor screen.
2. Connect an oscilloscope to TP106 on the MONITOR MAIN
1. Display the gray scale on the monitor screen.
2. Connect an oscilloscope to TP106 on the MONITOR MAIN
board.
3. Adjust RV212 so that the white level of the waveform is at
4.6 ± 0.05V DC.
Adjustment Location: Monitor Main Board
R and B Level Adjustment
Procedure:
1. Display the gray scale on the monitor screen.
2. Connect an oscilloscope to TP107 on the MONITOR MAIN
1. Display the gray scale on the monitor screen.
2. Connect an oscilloscope to TP107 on the MONITOR MAIN
board.
3. Adjust RV207 so that the white level of the waveform is at
4.6 ± 0.05V DC.
4. Connect an oscilloscope to TP108 on the MONITOR MAIN
board.
5. Adjust RV209 so that the white level of the waveform is at
4.4 ± 0.05V DC.
Adjustment Location: Monitor Main Board
VCOM Adjustment (2)
Procedure:
1. Display the navigation map screen on the monitor screen.
2. Adjust RV211 so as to ensure that the screen has the highest
1. Display the navigation map screen on the monitor screen.
2. Adjust RV211 so as to ensure that the screen has the highest
contrast with no flicker.
Adjustment Location: Monitor Main Board
MONITOR MAIN BOARD (SIDE A)
RV211 RV210
RV209 RV207
R AND B LEVEL
γ
2
RV213
γ
0
RV212
RV601
INVERTER
VOLTAGE
RV208
RGB
AMPLITUDE
RV401
DC/DC
CONVERTER
VOLTAGE
RV201
BRIGHT
VCOM
MONITOR MAIN BOARD (SIDE B)
TP64
TP63
TP57
TP14
TP67
TP70
TP102
TP107
TP106
TP108
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