Sony WM-FX50 - ADJUSTMENTS; Mechanical Measurement Procedures; Mechanical Adjustment Precautions; Tape Speed Adjustment

ADJUSTMENTS
Mechanical measurements
Precaution
1. Clean the following parts with a denatured-
alcohol-moistened swab :
pinch roller
rubber belts
2. Demagnetize the playback head with a head
playback head
capstan
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
supply (1.3V) unless
rated power voltage
otherwise noted.
The following measurements are necessary when tape
running problems are occured or repaired the tape
transport mechanism.
Torque Measurement
20 - 38 g-cm
(0.28 - 0.52 oz-inch)
CQ-102C
FWD
Back Tension
0.5 - 4 g-cm
(0.007 - 0.05 oz-inch)
20 - 38 g-cm
(0.28 - 0.52 oz-inch)
REV
CQ-102RC
REV
Back Tension
0.5 - 3.5 g-cm
(0.007 - 0.05 oz-inch)
More than 60 g-cm
FF,
REW
(more
than
0.83
oz-inch)
CQ-201B
Tape Tenston Measurement
Torque meter Meter reading
CQ-403A
CQ-403R
More than 40 g-cm
(more than 0.56 oz-inch)
W w and Flutter Measurement
procedure :
Function : Tape (WM-FX50)
Mode : Forward
wow and flutter
equipment
test tape
WS-48A
(3kHz, 0dB)
headphones jack
Playback the center part of the test tape (WS-48A)
and measure the wow and flutter at the unweighted
position of the wow and flutter equipment.
Specification : Less than 0.6% rms (JIS)
Mechanical adjustments
Precaution
- Supplied voltage: 1.3V
- Switch and control position
DOLBY NR switch: OFF
TAPE switch: NORM |
MEGA BASS switch: NORM
VOLUME control: maximum
Tape speed adjustment
Adjustment Location