Sony CA-550, Руководство по обслуживанию, Страница: 38 / 114

3-10 (E)
CA-550
CA-550P
3-4. MD-103 Board Adjustment
This adjustment requires a completely-aligned MSU-700.
Refer to Section 3-1-3 and 3-1-4 for connection and initial
settings.
3-4-1. VCO 45 MHz Adjustment
Note :
• This adjustment requires longer warm-up periods (10 to
30 minutes).
Equipment :
Frequency counter
Test Point :
TP9 (GND:E1)/MD-103 (F-2)
Adjustment Point :
1
RV13 (VCO ADJ)/MD-103 (F-3)
Specifications : 45, 000, 000
±
10 Hz
3-4-2. Y Level Adjustment
Equipment : Oscilloscope
Preparation :
• Setting of MSU-700 operation panel
TEST 2 button
→
ON (Lights)
Test Point :
TP61 (GND:TP59)/extension board
(extending MD-103)
Adjustment Point :
1
RV1 (VTR Y LVL)/
MD-103 (A-3)
Specifications :
A = 1400 mV
±
2%
Note :
• After the adjustment is complete, be sure to turn off the
TEST 2 button of MSU-700.
H rate
MD-103 BOARD (COMPONENT SIDE)
3-4. MD-103 Board Adjustment
MD
PROMPT
GENLOCK
A
1 2 3 4
B
C
D
E
F
G
RV1
RV13
TP9
E1