Sony CA-755, Maintenance Manual

Page: 32 / 132

2-6 (E)
CA-755/755P
2-3. MD-117 Board Adjustment
Preparations :
1. Turn off the POWER switch on the CCU and discon-
nect the triaxial cable.
2. Connect the DC IN connector of the CA-755/755P to
the AC-550/550CE using the cable.
3. OUTPUT/DCC switch (Camcoder)
→
BARS
2-3-1. Sample Pulse Adjustment
To be extended : MD-117 board
Equipment : Oscilloscope
Test point :
TP1/MD-117 board
Adjustment point : 1
RV11 (H PHASE)/MD-117 board
Specifications : A = 5.0
±
0.2
u
s
2-3-2. Y Video Level Adjustment
To be extended :
MD-117 board
Equipment :
Oscilloscope
Test point : TP5/MD-117 board
GND : E1/MD-117 board
Adjustment point : 1
RV3 (Y LEVEL)/MD-117 board
Specifications :
A
_
B = 0
±
2 mV
A
B
C D E F
G
1
2
3
4
5
6
7
8
9
10
MD-117 BOARD (A SIDE)
CN1
RV4
RV2
RV3
RV10
RV11
RV8
RV7
RV1
TP10
TP11
TP5
TP6
TP7
TP4
TP9
TP1
TP2
TP8
E1
TP3
RV5
RV6
RV9
E2
2-3. MD-117 Board Adjustment
2-3-1. Sample Pulse Adjustment
2-3-2. Y Video Level Adjustment