Sync Sample Hold Pulse Width Adjustment; Mhz Vco Dc Set Adjustment - Sony CCU-590 Maintenance Manual

4-4-3. SYNC Sample Hold Pulse Width
Adjustment
Adjustment category:
B
Measuring instrument: Oscilloscope
Extended board:
DM-140 board
Measurement point: TP505 (GND: E301)/DM-140
board
Adjustment point: 1RV504 (SYNC S/H)/DM-140
board
T = 1.3 ± 0.1 us
Specification:
T
H
TP601
RV601
G
RV701
TP101
E101
F
TP603 TP602
S101
RV161
RV602
RV603
TP102
E
TP1
D
S1
C
B
A
RV902
RV702 RV802
1 2
DM-140 BOARD (SIDE A)
4-10
50%
CN902
RV803
RV903
TP902
RV901
RV801
S301 TP301
E301
TP803 TP802
RV301
RV804
RV805
TP302
TP501
LV501
TP502
RV502
RV501
RV503
TP503
TP505
RV504
TP504
TP901
TP701 TP801
4
E1
3

4-4-4. 22.5 MHz VCO DC Set Adjustment

Adjustment category: C
Note:
Confirm 45 MHz frequency on
the MD-132B board (CA-590/
590P).
Measuring instrument: Oscilloscope
Extended board:
DM-140 board
Measurement point: TP602 (GND: E301)/DM-140
board
Adjustment point: 1RV602 (Y VCO DCSET)/
DM-140 board
A = 0 ± 30 mV dc
Specification:
A
GND
CCU-590/P/V1(E)