B-Y Crosstalk Adjustment; C 1St Agc Adjustment - Sony CCU-TX7 Service Manual

4-4-4. B-Y Crosstalk Adjustment

Note : Make sure that 45 MHz frequency on the YM-15
board (CA-TX7/TX7P) is correct.
Equipment : Oscilloscope
To be extended : YD-26 board
Test point : TP17 (GND: E8)/YD-26 board
Adjusting point : 1RV13 (OFFSET ADJ)/YD-26 board
: A = 0 ± 3 mV
Specification
BLKG
A
SYNC
4-20

4-4-5. C 1st AGC Adjustment

Equipment : Oscilloscope
To be extended : YD-26 board
Preparation :
. S1 (AUTO/MANU)/YD-26 board → "AUTO"
. S4 (C 2nd AGC)/YD-26 board → "OFF"
Test point : TP17 (GND: E8)/YD-26 board
Adjusting point : 1RV10 (C AGC CONT)/YD-26 board
: A = 350 ± 20 mV
Specification
A
CCU-TX7 (E)/V1