Sony SLV-GA30, Service Manual, Page: 43 / 120

6-2
2-1-5. Input/Output Levels and Impedance
Video input: LINE IN
Input signal: 1 Vp-p, 75 ohms, unbalanced,
sync negative
Video output: LINE OUT
Output signal: 1 Vp-p, 75 ohms, unbalanced,
sync negative
Audio input: LINE IN
Input level: –7.5 dBs
(0 dBs= 0.775 Vrms)
Input impedance: more than 47 kilohms
Audio output:LINE OUT
Standard level: –7.5 dBs at load impedance 47
kilohms
Output impedance: less than 10 kilohms
2-1-6. Adjustment Sequence
The adjustments should be performed in the following sequence.
2-2. POWER SUPPLY CHECK
2-2-1. Output Voltage Check (MA-336 Board)
Mode E-E
Measuring Instrument Digital voltmeter
+12 V Check
Measurement point CN201 pin
!º
Specified value 11.5 –13.0 V
+5 V Check
MP CN206 pin
!£
SV 5.0 –5.6 V
+9 V Check
MP Emitter of Q961
SV 8.5 –10.0 V
MTR12 V Check
Measurement point CN204 pin
4
Specified value 11.5 –13.0 V
[Check Method]
1)
Each of these supply voltages must meet its specified value.
Power Supply Check
Servo/Video System Adjustments
Audio System Adjustments