Y Sync Cancel Adjustment; Y/Skin Dc Balance Adjustment - Sony CA-550 Maintenance Manual

3-4-3. Y SYNC Cancel Adjustment

Equipment : Oscilloscope
Preparation :
• Setting of MSU-700 operation panel
TEST 2 button→ ON (Lights)
Test Point : TP1 (GND:E1)/MD-103 (C-3)
Adjustment Point : 1RV2 (SYNC CANCEL)/
MD-103 (A-3)
Adjustment Procedures:
Adjust 1RV2 so that the H SYNC portion is flat.
Note :
• After the adjustment is complete, be sure to turn off the
TEST 2 button of MSU-700.
4
MD
A
B
PROMPT
GENLOCK
C
TP1
D
E
F
G
MD-103 BOARD (COMPONENT SIDE)
CA-550
CA-550P
Flat
H rate
3 2 1
RV2
RV3
E1
TP2
RV4

3-4-4. Y/SKIN DC Balance Adjustment

Equipment : Oscilloscope (LIMITER→ OFF)
Test Point : TP2 (GND:E1)/MD-103 (C-2)
Trigger : SYNC OUTPUT connector/
CCU rear panel
Adjustment Points : 1RV3 (Y DC BAL)/MD-103 (B-3)
1RV4 (SKIN DC BAL)/MD-103 (C-3)
Adjustment Procedure :
Adjust 1RV3 and 1RV4 alternately until the V SYNC
portions are flat.
3-4. MD-103 Board Adjustment
V rate
3-11 (E)