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Laser Beam Safety Precaution; Tape Adjustments - Sanyo MCD-Z330F Service Manual

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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 - INVISIBLE IASER RADIATION
WHEN OPEN AND INTERLOCKS
DEFEATED.
AVOID EXPOSURE TOBEAM.
ADVARSEL - USYNLIG L ASER STRALING VED ABNING, NAR SIKKERHEDSAFBRYDERE
ERUDE AFFUNWION, UND~ UDS lH_TELSE F OR STtiLING.
VARNING - OSYNLIG L ASER STRALNING
NAR DENNA DEL AROfJpNAD OcHsPARR AR
URKOPPIAD. STtiLENARFARLIG.
VORSICHT - UNSICHTBARE
b4SERSTRAHLUNG
TRITT AUS, W ENN DECKEL G EbFFNET
UND WENN slcHERHEITsvERRIEGELuNG
UBERBRUCKT
IST.NICHT, DEM sTRAtiL
A
AUSSETZEN.
VARO !AVATTAESSA
JASUOJALUKITUS
OHIT~AESSAOLET ALTnlNA
NAKYMAm3JALLE
LASER5ATEILYLLE.
AM KATSO sATEEsEEN
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
-1-

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