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3.
Mode: Playback
test tape
SPEAKER
P-4-A100
terminal (JK401)
(10kHz, –10dB)
(L-CH)
Waveform of oscilloscope
in phase
45˚
good
4.
After the adjustments, apply suitable locking compound to the
parts adjusted.
Adjustment Location:
Remove the cassette lid before adjustment (See page 12)
Adjustment screws
REC/PB head (deck B)
or PB head (deck A)
oscilloscope
L
R
SPEAKER
terminal (JK401)
(R-CH)
90˚
135˚
180˚
wrong
Tape Speed Adjustment (Deck A)
Procedure:
1.
Mode: Playback
test tape
WS-48B
(3kHz, 0dB)
set
SPEAKER
terminal (JK401)
2.
Adjust the SFR601 so that the frequency counter reads 3,000
Hz ± 90Hz.
Adjustment Location: MAIN board
Sample Value of Wow and flutter
W. RMS (JIS) within 0.3%
(test tape: WS-48B)
[FLD BOARD] — Component side —
SFR601
CN604
frequency counter
+
–
15
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