S Video Out Chroma Level Adjustment; (Vc-227 Board); Av Out Y, Chroma Level Check (Vc-227 Board) - Sony DCR-PC100 Service Manual

3. S VIDEO OUT Chroma Level Adjustment

(VC-227 Board)

Mode Camera
Subject Arbitrary
Measurement Point Chroma signal terminal of S VIDEO
jack (75Ω terminated)
External trigger: Y signal terminal of
S VIDEO jack
Measuring Instrument Oscilloscope
Adjustment Page C
Adjustment Address 26, 27
Specified Value Cr level:
Cb level:
Burst level: C = 286 ± 6mV(NTSC)
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 2, address: 35. After noting down the data of this
address, set data: 01 to the address.
3) Select page: 3, address: 0C, set data: 02, and press the PAUSE
button of the adjustment remote commander.
4) Select page: C, address: 26, change the data and set the Cr
signal level (A) to the specified value.
5) Press the PAUSE button.
6) Select page: C, address: 27, change the data and set the Cb
signal level (B) to the specified value.
7) Press the PAUSE button.
8) Check that the burst signal level (C) is satisfied the specified
value.
9) Select page: 3, address: 0C, set data: 00, and press the PAUSE
button.
10) Select page: 2, address: 35, and set the data that is noted down
at step 2).
11) Select page: 0, address: 01, and set data: 00.
A
0.28 µ sec (NTSC)
0.23 µ sec (PAL)
Fig. 5-3-9.
A = 714 ± 14mV(NTSC)
A = 700 ± 14mV(PAL)
B = 714 ± 14mV(NTSC)
B = 700 ± 14mV(PAL)
C = 300 ± 6mV(PAL)
H
B
0.28 µ sec (NTSC)
0.23 µ sec (PAL)

4. AV OUT Y, Chroma Level Check (VC-227 Board)

Mode
Subject
Measurement Point
Measuring Instrument
Specified Value
Adjusting method:
1) Select page: 2, address: 35. After noting down the data of this
address, set data: 01 to the address.
2) Select page: 3, address: 0C, set data: 02, and press the PAUSE
button of the adjustment remote commander.
3) Check that the sync signal level (A) satisfies the specified value.
4) Check that the burst signal level (B) satisfies the specified value.
5) Select page: 3, address: 0C, set data: 00, and press the PAUSE
button.
6) Select page: 2, address: 35, and set the data that is noted down
at step 1).
A
C
5-49
Camera
Arbitrary
Video terminal of AUDIO/VIDEO
jack (75Ω terminated)
Oscilloscope
Sync level: A = 286 ± 18mV(NTSC)
A = 300 ± 18mV(PAL)
Burst level: B = 286 ± 18(mV(NTSC)
B = 300 ± 18mV(PAL)
H
Fig. 5-3-10.
B