– 11 –
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab:
playback head pinch roller
rubber belts capstan
2. Demagnetize the playback head with a head demagnetizer.
(Do not bring the head demagnetizer close to the erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the rated power
supply voltage (1.3 V) unless otherwise noted.
Torque Measurement
Mode Torque Meter Meter Reading
(1.47 – 2.94 mN•m)
FWD 15 – 25 g•cm
CQ-102C
(0.22 – 0.36 oz•inch)
(0.029 – 0.196 mN•m)
FWD
0.3 – 2.0 g•cm
Back Tension
(0.004 – 0.01 oz•inch)
(1.47 – 2.94 mN•m)
REV 15 – 25 g•cm
CQ-102RC
(0.22 – 0.36 oz•inch)
(0.029 – 0.196 mN•m)
REV
0.3 – 2.0 g•cm
Back Tension
(0.004 – 0.01 oz•inch)
(more than 3.43 mN•m)
FF, REW CQ-201B more than 35 g•cm
(more than 0.5 oz•inch)
SECTION 4
MECHANICAL ADJUSTMENTS
SECTION 5
ELECTRICAL ADJUSTMENTS
PRECAUTION
1. Specified voltage : 1.3 V (DC)
2. Switch position
VOL, AVLS : Center
3. Remote control setting
HOLD switch : OFF
VOL knob : MAX
DOLBY NR : OFF
SOUND mode : Normal
0 dB=0.775 V
Test tape
Type Signal Used for
WS-48A 3 kHz, 0 dB Tape Speed Adjustment
Tape Speed Adjustment
Setting:
Procedure:
1. Playback WS-48A (tape center) in the FWD state.
2. Adjsut RV601 so that the frequency counter reading becomes
3,000 Hz.
Specification Values: 2,985 to 3,015 Hz
3. Playback WS-48A (tape center) in the REV state.
Check that the frequency counter reading is within 2.0%
(approx.60 Hz) of the reading of step 1.
Adjustment Location:
– MAIN BOARD –
frequency counte
test tape
WS-48A
(3 kHz, 0 dB)
set
i
jack (J301)
–
+
16
Ω
RV601
w
w
w
.
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i
a
o
y
u
1
6
3
.
c
o
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Q
Q
3
7
6
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1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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