Tape Deck Adjustments - Sanyo TRC-6300 Service Manual

Memo - scriber dictating / transcribing system
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TAPE
DECK
ADJUSTMENTS
a. HEAD
REPLACEMENT
AND
AZIMUTH
ADJUSTMENT
(a) Head
Replacement
.
After replacement, demagnetize the heads by using a
head eraser.
Be sure to clean the heads before attempting to make
any adjustment.
(b) Head
Azimuth
Adjustment
(1) Load the test tape (OA-A411, etc. : 6,300 Hz) for
azimuth adjustment.
(2) Press the PLAY button.
(3) Use a cross-tip screwdriver to turn the screw for
azimuth adjustment so that the outputs are maximized.
(4) After completion of the adjustment, use thread lock
(TB-1 401 B) to secure the azimuth-adjustment
screw.
b. MOTOR
SPEED
ADJUSTMENT
(1) Insert the test tape (OA-W411, etc. : 3,000Hz).
(2) Press the PLAY button.
(3) Adjust SVR so that the frequency counter shows are
reading of 3,000 Hz.
HEAD
AZIMUTH
ADJUSTMENT
.
c. CHECKING
THE
MECHANISM
TORQUES
AND
TENSION
.
Clean the head, capstan and pinch roller before making any measurement
Measurement
Take-up
torque
Tape
tension
Cassette
for
PLAY:
TW-llll
A
Drive-power
cassette
measurement
F. FWD/REW
: TW-1231A
TW-1412
PLAY
7-
16gr.cm
30qr(MlN.)
j
F. FWD/REW
I
40
ar.cm
(MIN.)
I
---
I
-2-

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