Sony DVMC-DA1 Service Manual page 33

2. S-VIDEO OUT Y Level Adjustment
Mode VTR, Digital EE
Signal No signal
Measurement Point Y signal terminal of S VIDEO jack
(75 Ω terminated)
Measuring Instrument Oscilloscope
Adjustment Page C
Adjustment Address 25
Specified Value A = 1000 ± 14mVp-p
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: C, address: 48, set data: 06, and press the PAUSE
button of the adjustment remote commander. (VTR mode)
3) Select page: C, address: 56, set data: 00, and press the PAUSE
button of the adjustment remote commander. (digital EE mode)
4) Select page: 2, address: 35. After note down the data of this
address, set data: 01 to the address.
5) Select page: 3, address: 0C, set data: 02, and press the PAUSE
button of the adjustment remote commander.
6) Select page: C, address: 25, change the data and set the Y signal
level (A) to the specified value.
7) Press the PAUSE button of the adjustment remote commander.
8) Select page: 3, address: 0C, set data: 00, and press the PAUSE
button of the adjustment remote commander.
9) Select page: 2, address: 35. and set the data that is noted down
at step 4).
10) Select page: C, address: 48, set data: 00, and press the PAUSE
button of the adjustment remote commander.
11) Select page: C, address: 56, set data: 08, and press the PAUSE
button of the adjustment remote commander.
12) Select page: 0, address: 01, and set data: 00.
H
Fig. 4-5
3. S-VIDEO OUT Cr, Cb Level Adjustment
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: C, address: 48, set data: 06, and press the PAUSE
button of the adjustment remote commander. (VTR mode)
3) Select page: C, address: 56, set data: 00, and press the PAUSE
button of the adjustment remote commander. (digital EE mode)
4) Select page: 2, address: 35. After note down the data of this
address, set data: 01 to the address.
5) Select page: 3, address: 0C, set data: 02, and press the PAUSE
button of the adjustment remote commander.
6) Select page: C, address: 26, change the data to adjust the Cr
signal level (A) to the specified value.
7) Press the PAUSE button of the adjustment remote commander.
8) Select page: C, address: 27, change the data to adjust the Cb
signal level (B) to the specified value.
9) Press the PAUSE button of the adjustment remote commander.
10) Check that the burst signal level (C) is satisfied the specified
value.
11) Select page: 3, address: 0C, set data: 00, and press the PAUSE
button of the adjustment remote commander.
12) Select page: 2, address: 35, and set the data that is noted down
at step 4).
13) Select page: C, address: 48, set data: 00, and press the PAUSE
button of the adjustment remote commander.
A
14) Select page: C, address: 56, set data: 08, and press the PAUSE
button of the adjustment remote commander.
15) Select page: 0, address: 01, and set data: 00.
0.28 µ sec
4-6
VTR, Digital EE
No signal
Chroma signal terminal of S VIDEO
jack (75 Ω terminated)
External trigger: Y signal terminal of
S VIDEO jack
Oscilloscope
C
26, 27
Cr level: A = 714 ± 14mVp-p
Cb level: B = 714 ± 14mVp-p
Burst level: C = 286 ± 16mVp-p
H
A B
0.28 µ sec
Fig. 4-6
C