QT-CD180 (serv.man3). Part 1 - text - Sharp Audio Service Manual (repair manual). Page 3

– 3 –

PROBE

AC

OUT

UNIT

SHORT-CIRCUT
AC POWER
SUPPLY CORD

CONNECT THE PROBE
TO GND OF CHASSIS
SCREW TERMINAL

WITHSTANDING

VOLTAGE TESTER

Before returning the unit to the customer after completion of a repair or adjustment it is necessary for the following withstand voltage
test to be applied to ensure the unit is safe for the customer to use.
Setting of Withstanding Voltage Tester and set.

NG: The “NG” lamp lights and the buzzor sounds.

OK: The “GOOD” lamp lights.

Judgment

Unit

Set current (Cutoff current)

Set time

Set name

Withstanding Voltage Tester

Test voltage

Set value

4,240 VPEAK

3,000 VRMS

6 secs

4 mA

Laser Diode Properties

Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW

●

This Portable CD Stereo System is classi-
fied as a CLASS 1 LASER product.

●

The CLASS 1 LASER PRODUCT label is
located on the rear cover.

●

Use of controls, adjustments or perfor-
mance of procedures other than those
specified herein may result in hazardous
radiation exposure.

As the laser beam used in this compact disc
player is harmful to the eyes, do not attempt
to disassemble the cabinet. Refer servic-
ing to qualified personnel only.

CAUTION-INVISIBLE  LASER  RADIATION  WHEN  OPEN.  DO  NOT  STARE  INTO 
BEAM  OR  VIEW  DIRECTLY  WITH  OPTICAL  INSTRUMENTS.

VARNING-OSYNLIG  LASERSTRALNING  NAR  DENNA  DEL  AR  OPPNAD.  STIRRA
EJ  IN  I  STRALEN  OCH  BETRAKTA  EJ  STRALEN   MED  OPTISKA  INSTRUMENT.

ADVERSEL-USYNLIG  LASERSTRALING  VED  ABNING.  SE  IKKE  IND  I 
STRALEN-HELLER  IKKE  MED  OPTISKE  INSTRUMENTER.

VARO!  AVATTAESSA  OLET  ALTTIINA  NAKYMATON  LASERSATEILYLLE.
ALA  TUIJOTA  SATEESEEN  ALAKA  KATSO  SITA  OPTISEN  LAITTEEN  LAPI.

VARNING-OSYNLIG  LASERSTRALNING  NAR  DENNA  DEL  AR  OPPNAD.
STIRRA  EJ IN  I  STRALEN  OCH  BETRAKTA  EJ  STRALEN  GENOM  OPTISKT  
INSTRUMENT.
ADVERSEL-USYNLIG  LASERSTRALING  NAR  DEKSEL  APNES.  STIRR IKKE  
INN  I  STRALEN  ELLER  SE  DIREKTE  MED  OPTISKE  INSTRUMENTER.