Sample Pulse Width Adjustment - Sony CCU-700A Maintenance Manual

3-4-5. Sample Pulse Width Adjustment

Rank: B
Equipment:
Oscilloscope
To be extended:
DM-94 board
Test point:
TP7 (GND: E2)/DM-94 board
Adjusting point: 1RV4 (SAMPLE S/H)/DM-94
board
T = 40.0 ±2.0 µs
Specification:
V
T
CCU-700 A
CCU-700AP
3-4-6. Sample Pulse V Gate Width
Adjustment
Rank:
Equipment:
To be extended:
Test point:
Adjusting point:
Adjustment Procedure
• Confirm that the sample pulses have six pulses in both
odd and even fields.
If not met, adjust 1RV3 (SAMPLE GATE)/DM-94
board so that the sample pulses have six pulses in both
odd and even fields.
50%
3-4. Y Cable Compensation System Adjustment
B
Oscilloscope
DM-94 board
TP7 (GND: E2)/DM-94 board
1RV3 (SAMPLE GATE)/DM-94
board
6 pulses
3-25