Read Sony CFS-1055 Service Manual online
– 6 –
SECTION 3
ADJUSTMENTS
3-1. MECHANICAL ADJUSTMENTS
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
demagnetizer. (Do not bring the head demagnetizer
close to the erase head.)
close to the erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound
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.
Mode
Torque Meter
Meter Reading
Playback
CQ-102C
30 – 70g•cm
(0.42 – 0.97 oz•inch)
Back Tension
CQ-102C
1.5 – 5.5g•cm
(0.021– 0.076 oz•inch)
Rewind
CQ-201B
55 – 135g•cm
Fast Forward
(0.77– 1.87 oz•inch)
1. Torque Measurement
2.Tape Tension Measurement
3-2. ELECTRICAL ADJUSTMENTS
TAPE SECTION
Mode
Tension Meter
Meter Reading
FWD
CQ-403A
more than 100g (3.53 oz)
1. The adjustments should be performed in the order given in the
service manual. (As a general rule, playback circuit adjustment
should be completed before performing recording circuit adjust-
ment.)
should be completed before performing recording circuit adjust-
ment.)
2. The adjustments should be performed for both L-CH and R-CH
unless otherwise indicated.
r
Switch location
FUNCTION
FUNCTION
• • • • • • • • • • • • • • • • •
TAPE (RADIO OFF)
GRAPHIC EQUALIZER
• •
center click
BALANCE
• • • • • • • • • • • • • • • • • •
center click
VOLUME
• • • • • • • • • • • • • • • • • • • •
mechanical center
BASS BOOST
• • • • • • • • • • • • • •
mechanical center
0 dB=0.775V
Type
Signal
Used for
WS-48B
3kHz, 0dB
Tape Speed Adjustment
P-4-A063
6.3kHz, – 10dB
Azimuth Adjustment
P-4-L300
315Hz, 0dB
Level Adjustment
Test Tape
Click on the first or last page to see other CFS-1055 service manuals if exist.