JVC RC-M60L - Specifications of Cassette Mechanism

RC-M60L/LB |
Specifications of Cassette Mechanism
Check the following items after cassette mechanism parts are replaced.
Item Requirement Test equipment Test tape
1. Source voltage Rated voltage: 12V DC Regulated power supply
Motor operating voltage
range: 7-15 VDC
. Tape speed 4.75 cm/sec +2% Frequency counter (digital counter) VTT-655
(3,000 Hz) -2%
Deviation 2%
3. Wow & flutter Less than 0.18% (RMS) Wow meter VTT-655
4. Take-up torque PLAY 40— 70g.cm During FF and rewind, the idlers,
reels and flywheel should not slip
FF 75g.cm or more against each other when the reels
are locked.
REW 75g.cm or more Torque dial gauge (Tonichi or
equivalent)
5. Current PLAY 150mA or less DC ammeter C-60 (Take-up torque
consumption should be normal when
FF 300mA or less
(of motor alone) tape is used.)
REW 300mA or less
6. Pinch roller 350 — 500g Tension gauge
pressure Pull the pinch roller perpendicular-
ly and read the gauge when the
pinch roller just stops.
ihe
7. Axial clearance Clearance gauge
of flywheel
During PLAY A ny cassette tape
(RECORD) the dimen-
sional requirements given
here must be met, and
the heads must not con-
tact the cassette case.
. Head position
during PLAY and
RECORD
. Head position ‘Ga
during cueing
4.35 ~ 5.10
lo] fO} REC/PLAY Head
. Auto-stop
Operation
The facility should operate with a reduced voltage of 6.5 V
at the end of tape during PLAY/REC, FF, and REW.
During REC, a load the same as that of the amplifier is
applied.
Any cassette tape
No. 1416 Sie