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il
.
.. ,.., -
REMOVAL
AND INSTALLATION
c. "O" POINT ADJUSTMENT
d. ROD ANTENNA
TERMINAL
-o-
POINT
*2
Sj$y
El
.*
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TERMINAL
TERM NAL
..-,
...-
TAPE DECK ADJUSTMENTS
a. HEAD REPLACEMENT
After replacement,
demagnetize
the heads by
using a degausser.
Bq sure to clean the heads
before
attempting
to make any adjustments.
All wiring should be returned
to the original
position
after work is completed.
. .
.
.,
,, .... .
.-
.'":,
,.
.>
b. MOTOR
SPEED ADJUSTMENT
'
., ,
(1)
Insert the test tape ( MTT-I 11 N, etc., 3000 Hz ) into
(2)
(3)
..
—
tape deck.
Press tape deck PLAY button.
Adjust SVR so that the frequency
counter shows are
reading of 3,000 Hz.
c. CHECKING
THE MECHANISM
TORQUES
AND TENSION
.
Clean the head, capstan
and pinch roller before making any measurement.
I
Measurement
I
Take-up torque
I
Back tension
I
Tape tension
I
Cassette for
PLAY:TW-2111A
Drive-power cassette
PLAY:TW-21 11A
measurement
F.FWD/REW:TW-2231
TW-2412
PLAY
30-60
gr.cm
2.0-
4.5 gr.cm
60 gr or more
F.FWD
55-120
gr.cm
REW
55-
120gr.cm
-2-
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