Mhz Carrier Level Adjustment; Y Demod Carrier Balance Adjustment - Sony CCU-700A Maintenance Manual

3-4. Y Cable Compensation System Adjustment

3-4-7. 22.5MHz Carrier Level Adjustment

Rank: B
Equipment:
Oscilloscope
To be extended:
DM-94 board
Test point:
TP10 (GND: E5)/DM-94 board
Adjusting point: 1RV7 (Y CARR LEVEL)/DM-94
board
A = 400 ±20 mV p-p
Specification:
(BW LIMIT/Oscilloscope → "OFF")
3-26

3-4-8. Y DEMOD Carrier Balance Adjustment

Rank:
Equipment:
To be extended:
Preparation
• CLOSE button/MSU-700 → "ON"
• S3 (Y 2nd AGC)/DM-94 board → "OFF"
Test point:
Adjustment Procedure
• Adjust 1RV8 (Y CAR LEVEL)/DM-94 board so that
the signal level of V sample pulse is maximum.
A
Note: After the adjustment, set as follows.
• S3 (Y 2nd AGC)/DM-94 board→ "ON"
B
Oscilloscope
DM-94 board
TP11 (GND: E3)/DM-94 board
V
maximum
CCU-700A
CCU-700AP