XL-50 - Sharp Audio Service Manual (repair manual). Page 2

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FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.

Precaution to be taken when replacing and servicing the
Laser Pickup.
The AEL (Accessible Emission Level) of Laser Power Output
for this model is specified to be lower than Class I Requirements.
However, the following precautions must be observed during
servicing to protect your eyes against exposure to the Laser
beam
(1) When the cabinet has been removed, the power is turned

on without a compact disc, and the Pickup is on a position
outer than the lead-in position, the Laser will light for several
seconds to detect a disc. Do not look into the Pickup Lens.

(2) The Laser Power Output of the Pickup inside the unit and

replacement service parts have already been adjusted prior
to shipping.

(3) No adjustment to the Laser Power should be attempted

when replacing or servicing the Pickup.

(4) Under no circumstances look directly into the Pickup Lens

at any time.

(5) CAUTION - Use of controls or adjustments, or performance

of procedures other than those specified herein may result
in hazardous radiation exposure.

Specifications for this model are subject to change without
prior notice.

Laser Diode Properties

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

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.

LASER KLASSE 1

LUOKAN 1 LASERLAITE

KLASS 1 LASERAPPARAT

●

50 - 14,000 Hz (Normal tape)

Signal/noise ratio: 50 dB
Wow and flutter:

0.3 % (DIN 45 511)

● 

Full range speaker system

10 cm (4") full-range speaker

5 W

10 W

4 ohms

Width; 145 mm (5-3/4")

Height; 240 mm (9-1/2")
Depth; 191 mm (7-1/2")

1.3 kg (2.9 lbs.)/each

●

AC 230 V, 50 Hz

Power consumption: 26 W
Dimensions:

Width; 160 mm (6-5/16")

Height; 241 mm (9-1/2")
Depth; 249 mm (9-13/16")

2.7 kg (6.0 lbs.)

●

PMPO; 28 W (total)
MPO; 14 W (7 W + 7 W)
(DIN 45 324)

RMS; 10 W (5 W + 5 W)

(DIN 45 324)

Speakers; 4 ohms

Headphones; 16-50 ohms
(recommended; 32 ohms)

● 

Frequency range: FM; 87.5-108 MHz

AM; 522-1,620 kHz

●

Compact disc player

Non-contact, 3-beam semi-

conductor laser pickup

1-bit D/A converter

8-times oversampling digital

filter

Frequency response: 20 - 20,000 Hz
Wow and flutter:

Unmeasurable

(less than 0.001% W. peak)