6-2
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
1-6. Adjustment Sequence
The adjustments should be performed in the following sequence.
2.
POWER SUPPLY CHECK
2-1. Output Voltage Check (MA-341 Board)
Mode
STANDBY
+30 V Check
Measurement point
C627
‘
Specified value
31.0 – 39.0 V
–11 V Check
Measurement point
C642
’
Specified value
–12.5 – – 9.5 V
+6 V Check
Measurement point
Corrector of Q607
Specified value
5.56 – 6.25 V
Mode
E-E
Measuring Instrument
Digital voltmeter
+12 V Check
Measurement point
IC601 pin
2
Specified value
11.7 –12.3 V
+5 V Check
Measurement point
Emitter of Q603
Specified value
4.8 –5.4 V
MTR12 V Check
Measurement point
Correcter of Q605
Specified value
12.5 –14.5 V
[Check Method]
1)
Each of these supply voltages must meet its specified value.
Power Supply Check
Servo/Video System Adjustments
Audio System Adjustments
Summary of Contents for POWER TRILOGIC SLV-L49 MX
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