Mechanical Adjustments; Electrical Adjustments; Tape Section - Sony CXFD-S03CP Service Manual

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MECHANICAL ADJUSTMENTS

3 7 63 1515 0
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head
erase head
capstan
2. Demagnetize the record/playback head with a head demagnetizer.
(Do not bring the head magnetizer close to the erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the rated power
supply voltage (9V) unless otherwise noted.
Torque Measurement
Mode Torque meter
FWD
FWD
Back Tension
FF
REW
Tape Tension Measurement
TE
L 13942296513
Mode Tension meter
FWD
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SECTION 4
PRECAUTION
pinch roller
rubber belts
idlers
Meter reading
2.95 – 6.86 mN • m
CQ-102C (30 – 70 g • cm)
(0.42 – 0.97 oz • inch)
0.15 – 0.53 mN • m
CQ-102C (1.5 – 5.5 g • cm)
(0.021 – 0.076 oz • inch)
more than 5.88 mN • m
CQ-201B (more than 60 g • cm)
(more than 0.83 oz • inch)
more than 5.88 mN • m
CQ-201B (more than 60 g • cm)
(more than 0.83 oz • inch)
Meter reading
more than 100 g
CQ-403A
(more than 3.53 oz)
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ELECTRICAL ADJUSTMENTS

8

TAPE SECTION

• Standard Output Level
Output terminal
load impedance
output signal level
• Test Tape
Type
WS-48A
Tape Speed Adjustment
Procedure:
Mode: playback
test tape
WS-48A
(3 kHz, 0 dB)
Adjust so that the value on the digital frequency counter is
3,000 Hz.
Specification Value:
Q Q
Digital frequency counter
3 6 7 1 3
2,910 to 3,090 Hz
Adjust so that the frequency at the beginning and that at the end of
tape winding are between 2,910 to 3,090 Hz.
Adjustment Location:
u163
.
CFD-S03CP/S03CPL
SECTION 5
2 9 9 4 2 8
0 dB = 0.775 V
0.25 V (–10 dB)
Signal
3 kHz, 0 dB tape speed adjustment
32 Ω
set
i jack (J321)
1 5 0 5 8 2 9 9 4
m
co
Tape speed adjustment
control inside motor
9 9
HP OUT
32 Ω
Used for
digital frequency
counter
2 8 9 9
13