7
I
LASER BEAM SAFETY PRECAUTION
● Pick-up that emits a laser beam
is
used
in this CD
player
CAUTION :
USE OF CONTROLS OR ADJUSTMENTS
OR PERFORMANCE OF PROCEDURES
OTHER THAN THOSE SPECIFIED HEREIN
MAY RESULT IN HAZARDOUS RADIATION
EXPOSURE
LASER OUTPUT .......... 0.6mW Max. (CW)
WAVELENGTH .............790 nm
section.
-
1
CAUTION- INVISIBLEIASERRADIATIONWHENOPENANDINTERLOCKSDEFEATED.
AVOIDEXPOSURETOBEAM.
ADVARSEL- USYNLIGLASERSTRALINGVEDABNING,NARSIKKERHEDSAFBRYDERE
ERUDEAFFUNWION,UND~ UDSlH_TELSEFORSTtiLING.
VARNING- OSYNLIGLASERSTRALNINGNARDENNADELAROfJpNADOcHsPARRAR
URKOPPIAD.STtiLENARFARLIG.
VORSICHT- UNSICHTBAREb4SERSTRAHLUNGTRITTAUS,WENNDECKELGEbFFNET
UNDWENNslcHERHEITsvERRIEGELuNGUBERBRUCKTIST.NICHT,DEMsTRAtiL
A
AUSSETZEN.
VARO!AVATTAESSAJASUOJALUKITUSOHIT~AESSAOLETALTnlNA
NAKYMAm3JALLELASER5ATEILYLLE.AM KATSOsATEEsEEN
TAPE ADJUSTMENTS
a. Replacingthehead
b. Adjusting head azimuth
1.
2.
3.
4.
After replacement, demagnetize the heads by using a 1.
degausser.
Besureto clean theheads before attempting to make any 2.
adjustments.
3.
Be sure both channels (1 and 2) are the same level.
(Using a dual-channels oscilloscope).
All wiring should be returned to the original position after 4.
work is completed.
Q
R I P HEAD
I
Load a test tape (VTT-738, etc. :1 OkHz) for azimuth
adjust ment.
Press the PLAY button.
Use a cross-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.
Press the STOP button.
HEAD AZIMUTH
~
d. Replacing the motor ~o,n,,PrKn
c. Adjusting motor speed
..---- ,-. ---
ADJUSTMENT
1. Insert the test tape (MTT-111 or etc. 3,000 Hz).
2. Press the PLAY button.
3. Use a flat-tip screwdriver to turn the
SVR to adjust so that
the frequency counter
becomes 3,000 Hz.
4. Press the STOP button.
e. Checking the mechanism torques
● Clean the head, capstan and pinch roller before making any measurement.
Measurement
Takcwp torque
Back tension
Tape tension
Cassette for
PLAY: TW-2111A
PIAY:TW-2111A
DrivePower cassette
measurement
F.FWDIREW : TW-2231
TW-2412
PIAY 30- 70gr.cm
1.0- 6.Ogr.cm 80 gr or more
F. FWDIREW 55- 120gr.cm
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