Sony GV-D300 Operating Instructions (primary manual), Service Manual

Page: 82 / 148

5-18
3. VIDEO Output Y Level Adjustment (CB-61 Board)
Set the Y signal level of the Video output signal.
Mode VTR stop
Signal No signal
Measurement Point VIDEO jack (75
Ω
terminated)
Measuring Instrument Oscilloscope
Adjustment Page D
Adjustment Address 96
Specified Value A = 286 ± 6mV (NTSC)
A = 300 ± 6mV (PAL)
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 15, after memorizing the data, set the
bit value of bit2 to “0”. (Refer to “4-3, 3. Bit value
discrimination” of “5-4. Service Mode”).
3) Select page: D, address: 96, change the data and set the sync
signal level (A) to the specified value.
4) Press the PAUSE button of the adjustment remote commander.
5) Select page: D, address: 15, and set the data memorized at
step 2).
6) Press the PAUSE button of the adjustment remote commander.
7) Select page: 0, address: 01, and set data: 00.
8) Perform “VIDEO Output Chroma Level Adjustment”.
Fig. 5-3-9
4. S VIDEO Output Y Level Adjustment (CB-61 Board)
Set the Y signal level of the S video output signal.
Mode VTR stop
Signal No signal
Measurement Point Y signal terminal of S VIDEO jack
(75
Ω
terminated)
Measuring Instrument Oscilloscope
Adjustment Page D
Adjustment Address 95
Specified Value A = 286 ± 6mV (NTSC)
A = 300 ± 6mV (PAL)
Note:
Insert a plug in the S VIDEO jack.
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 15, after memorizing the data, set the
bit value of bit2 to “0”. (Refer to “4-3, 3. Bit value
discrimination” of “5-4. Service Mode”).
3) Select page: D, address: 95, change the data and set the sync
signal level (A) to the specified value.
4) Press the PAUSE button of the adjustment remote commander.
5) Select page: D, address: 15, and set the data memorized at
step 2).
6) Press the PAUSE button of the adjustment remote commander.
7) Select page: 0, address: 01, and set data: 00.
Fig. 5-3-10
A
H
A
H