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3-3. Video Signal System Adjustment
3-3-3. SYNC Phase Adjustment
Rank:
B
Equipment:
Waveform monitor
To be extended:
VA-156 board
Preparation:
• MASTER PEDESTAL volume/MSU-700 → " 99 "
Test point:
VBS 1 OUT connector/CCU rear panel
Adjusting point:
1RV1782 (SYNC PHASE)/
1RV1783 (SYNC WIDTH)/
Specification:
[For NTSC]
T1 = 1.5 ±0.1 µs (1RV1782)
T2 = 4.7 ±0.1 µs (1RV1783)
[For PAL]
T1 = 1.65 ±0.1 µs (1RV1782)
T2 = 4.7 ±0.1 µs (1RV1783)
4%
50%
T1
T2
Note:
After the adjustment, reset the
MASTER PEDESTAL volume to
the former position.
3-6
3-3-4. BF PULSE Adjustment
Rank:
Equipment:
To be extended:
Test point:
Adjustment Procedure
1. Adjusting point: 1RV1301 (BF START)/
VA-156 board
Specification:
VA-156 board
2. Adjusting point: 1RV1302 (BF STOP)/
Specification:
50%
B
Waveform monitor
VA-156 board
VBS 1 OUT connector/CCU rear panel
VA-156 board
[For NTSC] A = 5.3 ±0.1 µs
A = 5.6 ±0.1 µs
[For PAL]
VA-156 board
[For NTSC] B = 9 cycles
B = 2.25 ±0.2 µs
[For PAL]
A
B
CCU-700A
CCU-700AP
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