Tape Deck Adjustments - Sanyo MCD-Z8F Service Manual

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TAPE DECK ADJUSTMENTS
a.
(a)
(b)
(1)
(2)
(3)
(4)
(5)
b.
(a)
I
(b)
(1)
(2)
(3)
c.
HEAD REPLACEMENT
AND HEAD AZiMUTH ADJUSTMENT
HEAD REPLACEMENT
After replacement, demagnetize the heads by using a degausser.
Be sure to clean the heads before attempting
to make any adjustments.
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All wiring should be returned to the original position after
work is completed. ~
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HEAD AZIMUTH ADJUSTMENT
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Load the test tape ( VTT-703, etc., 10 kHz ) for azimuth
adjustment.
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Press the PLAY button.
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Use
a cross-tip screwdriver to turn the screw for azimuth
adjustment so that the
left
and right output are maximized.
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Press the the STOP button.
After completion of the adjustment, use thread lock (TB-1401 B)
to secure the azimuth-adjustin ent screw.
MOTOR REPLACEMENT AND SPEED ADJUSTMENT
MOTOR REPLACEMENT
Q 'a
MOTOR
Insert the test tape (
MTT-lll N,
etc., 3000 Hz ).
Press the
PLAY
button.
Use a flat-tip screwdriver to turn the SVR (located inside the rear
of the motor) to adjust SW? so that the frequency counter
HEAD AZIMUTH ADJ
becomes 3,000 Hz.
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CHECKING THE MECHANISM TORQUES
AND TENSION
Clean the head, capstan and pinch roller before m?.king any measurement.
Measurement Take-up torque
Back tension
I
Tape tension
Cassette for
PLAY:TW-211 1A
~ Drive-power cassette
PLAY: TW-21 11A
measurement F.FWD/REW:TW-2231
TW-2UI 2
PLAY 30- 60gr.cm
2. O-4.5 grcm :
60gr or more
F.FWD
55- 120gr.cm
—
—
REW
55-120 gr.cm
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