Read Sony HCD-H100 / MHC-C10 / MHC-G100 (serv.man2) Service Manual online
— 9 —
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw so
that outputs match within 2 dB of peak.
that outputs match within 2 dB of peak.
3. Mode: Playback
good
R
L-CH
peak
peak
R-CH
peak
peak
output
level
level
screw
position
position
within 2dB
L-CH
peak
peak
R-CH
peak
peak
screw
position
position
test tape
P-4-A100
(10kHz, –10dB)
P-4-A100
(10kHz, –10dB)
SPEAKER
terminal (JK301)
(L-CH)
terminal (JK301)
(L-CH)
set
L
oscilloscope
SPEAKER
terminal (JK301)
(R-CH)
terminal (JK301)
(R-CH)
Waveform of oscilloscope
wrong
in phase
45˚
90˚
135˚
180˚
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
Adjustment Location:
Adjustment screws
REC/PB head (deck A)
or PB head (deck B)
REC/PB head (deck A)
or PB head (deck B)
Tape Speed Adjustment (Deck A)
Procedure:
Mode: Playback
Mode: Playback
test tape
WS-48B
(3kHz, 0dB)
WS-48B
(3kHz, 0dB)
set
SPEAKER
terminal (JK301)
terminal (JK301)
frequency counter
Test tape
Signal
Used for
Tape
WS-48B
3 kHz, 0 dB
Tape Speed Adjustment
Adjust the SFR201 so that the frequency counter reads 3,000 Hz
±
90 Hz.
Adjustment Location:
Sample Value of Wow and flutter
W.RMS (JIS) less than 03.%
(test tape: WS-48B)
(test tape: WS-48B)
[MAIN BOARD] — Component side —
+
–
–
within
2dB
2dB
CN205
SFR201
CN301
Tape Speed Adjustment
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