Table of Contents
Advertisement
SECTION 4
ADJUSTMENTS
4-1. MECHANICAL ADJUSTMENTS
Precaution
1. Clean the follwing parts with a denatured-alcohol-moistened
swab :
playback head
pinch roller
capstan
rubber belts
2. Demagnetize the playback head with a head demagnetizer.
Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the rated power supply
voltage (2.5 V) unless otherwise noted.
ad
Torque Measurement
Weds
| Toraue meter
Meter reading
20-42 g-cm
(0.28-0.58 oz-inch)
CQ-102C
less than 2 g-cm
(less than 0.03 oz-inch)
20-42 g-cm
(0.28-0.58 oz-inch)
less than 2 g-cm
(less than 0.03 oz-inch)
FWD
Back Tension
REV
Back Tension
CQ-102RC
more than 60 g-cm
CQ-201B
(more than 0.83 oz-inch)
FF, REW
Tape Pulling Force Measurement
more than 40g
(more than 1.4 0z)
CQ-403R
4-2. ELECTRICAL ADJUSTMENTS
Precaution
¢ Supplied voltage : 2.5V
¢ Switch and control position
TAPE switch : NORMAL
MEGA BASS switch : NORM
VOLUME control : maximum
AVLS switch : NORM
DOLBY NR switch : OFF
TAPE SECTION
¢ Function switch : TAPE
Test tape
WS-48A
3kHz, 0dB
Tape Speed Adjustment
Tape speed adjustment
test tape
WS-48A
(3 kHz, OdB)
16.
FREQUENCY
COUNTER
PHONES
Procedure:
Play back WS-48A (tape center portion) in reverse mode.
Adjust the RV601 so that the frequency counter reads 2,985Hz +
15Hz.
Frequency difference between the begining and the end of the tape
should be within + 1.5%.
Adjustment Location:
RV601
Advertisement
Table of Contents
