17
CX-JDS22/JDS33
4. After the adjustments, apply suitable locking compound to
the parts adjusted.
Adjustment Location:
Record/Playback/Erase Head
3. Mode: Playback
set
test tape
P-4-A100
(10 kHz, –10 dB)
R-CH
oscilloscope
L-CH
R-CH
V
H
waveform of oscilloscope
in phase 45
°
90
°
135
°
180
°
good
wrong
MAIN board
SPEAKER terminal (J171)
L-CH
Tape Speed Check
Mode: Playback
1. Insert the WS-48B into deck.
2. Press the
N
(JDS22) (
nN
(JDS33)) button of deck.
3. Confirm that the frequency counter reads 3000
±
90 Hz.
Sample Value of Wow and flutter:
0.3% or less W.RMS (JIS)
(WS-48B)
+
–
set
test tape
WS-48B
(3 kHz, 0 dB)
MAIN board
SPEAKER terminal (J171)
L-CH, R-CH
frequency counter
Record Bias Adjustment
Procedure:
1. Record mode
2. Mode: Playback
i-Bass OFF
BASS 0
TREBLE 0
3. Confirm playback the signal recorded in step 1 become
adjustment level as follows.
Adjustment level:
Playback output of 315 Hz to playback output
of 10 kHz: –2
±
3.0 dB (0
±
4.5mV).
attenuator
set
PAI/HP/MIC board
AUDIO IN (J552)
1) 315 Hz
2) 10 kHz
50 mV (–23.8 dB)
600
Ω
blank tape
CN-123
AF OSC
+
–
set
recorded
portion
MAIN board speaker terminal (J171)
level meter
Note: Refer to “2-15. Cassette Panel” (see page 14)
adjustment screw
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