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PC-5 L/LB
2.
Specifications of Cassette Mechanism
Check the following items after cassette mechanism parts are replaced.
Rated volate:
12V DC
1. Source voltage
Motor operating voltage
Regulated power supply
range:
7—15V DC
4.75 cm/sec
+3%
2. Tape speed
(3,000 Hz)
-2%
Frequency counter (digital counter)
VTT-656
Deviation
2%
3. Wow & flutter
Less than 0.17% (RMS)
Wow meter
VTT-656
PLAY
40—70g.cm
During FF and rewind, the idlers,
as
FF
80 gr-cm or more | reels.and flywheel should not slip
C-60 (Take-up torque
REW
80 gr-cm or more
against each other when the reels
should be normal when
are locked.
tape is used.)
4. Take-up torque
PLAY
150 mA or less
FF
300 mA or less
DC ammeter
REW
300 mA or less
. Current
consumption
(of motor alone)
Tension gauge
Pull the pinch roller perpendicularly
(7)
and read the gauge when the pinch
Site
te
roller just stops.
6. Pinch roller
pressure
300 ~ 450 g.
. Axial clearance
of flywheel
During PLAY (RECORD) the
dimensional requirements given
here must be met, and the
heads must not contact the
cassette case.
. Head position
during PLAY
and RECORD
Any cassette tape
. Head position
during cueing
4.50
— 5.10
The facility should operate with a reduced voltage of 6.5 V at
the end of tape during PLAY/REC, FF, and REW.
Any cassette tape
During REC, a load the same as that of the amplifier is applied.
. Auto-stop
operation
3. Adjustment location of cassette amplifier
Cassette amplifier p.w. board (parts ass'y view)
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Fig. 47
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TAPE
SELECT
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— 23 —
No. 1443
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