– 15 –
SECTION 5
ELECTRICAL ADJUSTMENTS
SECTION 4
MECHANICAL ADJUSTMENTS
1. Clean the following parts with a denatured-alcohol-moistened
swab:
playback head
pinch roller
rubber belt
capstan
idlers
2. Demagnetize the playback head with a head demagnetizer.
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 power supply
voltage unless otherwise noted.
•
Torque Measurement
Mode
Torqu Meter
Meter Reading
Forward
CQ-403A
more than 90 g
(more than 3.18 oz)
Reverse
CQ-403R
more than 90 g
(more than 3.18 oz)
•
Tape Tension Measurement
set
+
–
test tape
WS-48A
(3 kHz, 0 dB)
speaker out terminal
4
Ω
speed checker
or
frequency counter
0 dB=0.775 V
TAPE DECK SECTION
Tape Speed Adjustment
Procedure:
1. Put the set into the FWD PB mode.
Speed checker
Frequency counter
–1.5 to +2.5%
2,955 to 3,075 Hz
Specification: Constant speed
Adjustment Location:
– SET UPPER VIEW –
TAPE SPEED Adjustment
Mode
Torqu Meter
Meter Reading
Forward
CQ-102C
30–65 g•cm
(0.42–0.90 oz•inch)
Forward
CQ-102C
0.5–4.5 g•cm
Back Tension
(0.01–0.06 oz•inch)
Reverse
CQ-102RC
30–65 g•cm
(0.42–0.90 oz•inch)
Reverse
CA-102RC
0.5–4.5 g•cm
Back Tension
(0.01–0.06 oz•inch)
FF, REW
CQ-201B
60–200 g•cm
(0.83–2.78 oz•inch)
