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SECTION 4
MECHANICAL ADJUSTMENTS
Mode Tension Meter Meter Reading
FWD CQ-403A
more than 100 g
(more than 3.53 oz)
• Tape Tension Measurement
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head pinch roller
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head demagne-
tizer. (Do not bring the head magnetizer close to the erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
• Torque Measurement
Mode Torque Meter Meter Reading
FWD CQ-102C
30 – 70 g•cm
(0.42 – 0.97 oz•inch)
FWD
CQ-102C
1.5 – 5.5 g•cm
Back Tension (0.021 – 0.076 oz•inch)
FF CQ-201B
more than 60 g•cm
(more than 0.83 oz•inch)
REW CQ-201B
more than 60 g•cm
(more than 0.83 oz•inch)
SECTION 5
ELECTRICAL ADJUSTMENTS
Tape Speed Adjustment
Setting:
Function: TAPE
Procedure:
1. Playback WS-48A (tape center) in the FWD state.
2. Adjsut the volume in CAPSTAN/REEL motor (M301) so that
the frequency counter reading becomes 3,000 Hz.
Specification Values: 2,985 to 3,015 Hz
3. Adjust the volume in CAPSTAN/REEL motor (M301) so that
the frequency at the beginning and that at the end of tape wind-
ing are between 2,955 to 3,045 Hz.
Adjustment Location:
PRECAUTION
1. Setting
SOUND control : OFF
TAPE DECK SECTION 0 dB=0.775 V
Test tape
Type Signal Used for
WS-48A 3 kHz, 0 dB Tape Speed Adjustment
+
–
set
Test tape
WS-48A
(3 kHz, 0 dB)
frequency counte
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