2-8.
AUDIO CIRCUIT
1 .
Deviation Adjustment
[Connection]
[Adjustment
I
Check]
m vR201
AD1 board
Measuring Point
Measuring Equipment
Condition
Audio output
Oscilloscope
Playback
(left) terminal
Input Signal
I
Alignment Tape
(WR5-5CSP): For operation check
(monaural)
ADJ. Location
ADJ. / Check Value
VR201
0.95 - 1 .00 Vp-p ( - 7 ± 0.2 dBs)
Preparation:
• POWER switch: "PLAYER"
Adjusting
I
Checking method:
1 . Adjust with VR201 so that the output level is 0.95 - 1 .00
Vp-p (
-
7 ± 0.2 dBs).
Vp-p
2. PB
Separation Adjustment
[Connection]
AD1 board
m vR21 1
[Adjustment
I
Check]
Measuring Point
Measuring Equipment
Condition
Audio output
Distortion meter
Playback
(left) terminal
Input Signal
I
Alignment Tape
(WR5-9CS): For operation check
(stereo)
ADJ. Location
ADJ. / Check Value
VR21 1
Less than 3 %
Preparation:
• POWER switch: "PLAYER"
Adjusting
I
Checking method:
1 . Adjust with VR21 1 so that the distortion ratio of the audio
output signal is less than 3 %.
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