LEASER BEAM SAFETY PRECAUTION
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TAPE ADJUSTMENTS
a. Replacing the head b. Adjusting head azimuth
1. After replacement, demagnetize the heads by using a
degausser.
2. Be sure to clean the heads before attempting to make any
adjustments.
3. Be sure both channels (1 and 2) are the same level.
(Using adual-channels oscilloscope).
4. All wiring should be returned to the original position after
work is completed.
IRIP HEAD I
1. Load a test tape (VTT-738, etc. :lOkHz) for azimuth
adjustment.
2. Press the PLAY button. d
3. Use across-tip screwdriver to turn the screw for normal
azimuth adjustment so that the left and right outputs are
maximized at the same phase during normal playback.
4. Press the STOP button.
IHEAD AZIMUTH
ADJUSTMENT
c. Adjusting motor speed
1.Insert the test tape (MTT-
2. Press the PLAY button.
3. Use aflat-tip screwdriver
e.
d. Replacing the motor
11 or etc. 3,000 Hz). \
Iturn the SVR to adjust so that
the frequency counter becomes 3,000 Hz.
4. Press the STOP button.
Checking the mechanism torques
●Clean the head, capstan and pinch roller before making any
,4:) if (.i
Measurement Take-up torque Back tension Tape tension :1!
Cassettefor PLAY:CT-120M PLAY :CT-W Drive-power cassette ,-“.,;
measurement F.FWD/REW :CT-F DM 300
PIAY 30- 60gr.cm 1.0- 6.Ogr.cm 80 gr, or more yin,+.].
F,FWDIREW 55 gr.cm or more ..:,,,,,.,.
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