Sharp xl 60 h service manual

Page 1

XL-60H/70H

SHARP SERVICE MANUAL

No. S4031XL60H/l/

1---. / XL-60H
XL-70H

lustration: XL-60H XL-60H/XL-70H Micro Component System consisting of XL-GUH/
XL-70H (main unit) and CP-XL60H/CP-XL70H (speaker system).

9% a:
M E x/

I: . III

1 . . - In the interests of userrsafety the set should be restored to its original
I l 0 condition and only pans Identical to those specitied should be used.
I

9% °$ - Note Ior users in U.K.

4 :1: Recording and playback of any material may require consent,

which SHARP is unable to give. Please refer particularly to the
provisions of Copyright Act 1956, the Dramatic and Musical
Performers Protection Act 1956, the Performers Protection Acts
1963 and 1972 and to any subsequent statutory enactments and
orders.

I

Illustration: XL-7OH
COMPACT

§@ @1205 EON SAVING ENER Y

STAN Y POWER
DIGITAL Aunlo CONSUMPI'UN 0.6W

/- CONTENTS %

SAFETY PRECAUTION FOR SERVICE MANUAL.
IMPORTANT SERVICE NOTES (FOR U.K. ONLY)
SPECIFICATIONS.
NAMES OF PARTS
OPERATION MANUAL.
DISASSEMBLY ...........................................................
REMOVING AND REINSTALLING THE MAIN PARTS.
ADJUSTMENT.
RDS ..........
TEST MODE .
ERROR LIST ....................................
NOTES ON SCHEMATIC DIAGRAM
TYPE OF TRANSISTOR AND LED ..
BLOCK DIAGRAM ........
SCHEMATIC DIAGRAM
WIRING SIDE OF P.W.BO .
WAVEFORMS OF CD CIRCUIT
TROUBLESHOOTING .....
FUNCTION TABLE OF IC
LCD SEGMENT ..
PARTS GUIDE/EX
PACKING METHOD (FOR U.K. ONLY)

\ /

This document has been published to be used

SHARP CORPORATION for after sales service only.

The contents are subject to change without notice.

Page 2

XL-60H/7OH

SAFETY PRECAUTION FOR SERVICE MANUAL

Precaution to be taken when replacing and servicing the

Laser Pickup.

The AEL (Accessible Emission Level) of Laser Power Output

forthis model is specified to be lowerthan Class | 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
outerthan the lead-in position, the Laserwill light forseveral
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.

CLASS I LASER PRODUCT
APPAREIL A LASEII DE CLASSE I
PRDDIJDTD LASER DE ELASE l

CAUTION

Use of controls, adjustments or performance of pro-
cedures other than those specified herein may re-
sult in hazardous radiation exposure.

As the laser beam used in this compact disc player
is harmful to the eyes, do not attempt to disassem-
ble the cabinet. Refer servicing to qualified person-
nel only.

(For U.K. )

VARoITusI LAITIEEN KAVTTAMINEN MUULLA
KUIN TAssA KAVTIDOHJEESSA MAI NI TULLA
TAVALLA SAATTAA ALTI STAA KAVTTAJAN
TLIRVALLI sLIusLuoKAN 1 VLITTAVALLE
NAKYMATIOMALLE LASERSATEILVLLE.

VARNING - DM APPARATEN ANVANDS PA ANNAT
sAI'r AM I DENNA BRUKSANVI sNI NG sPEcI Fl
CERAS. KAN ANVANDAREN uTsATTAs FOR
ostLIG LASERSTRALNING. soM OVERSKRIDER
GRANSEN FOR LASERKLASS 1.

Laser Diode Properties
Material: GaAlAs
Wavelength 780 nm
Emission Duration: continuous

CAUTIONDVVISIBLE LASER RADIATION WHEN OPEN

DO Nm STARE INTO
BEAM 0R VLEW DIRECTLY WITH OPTICAL INSTRUMENTS.

VARNINGJOSYNLIG LASERSTRALNTNG NAI< DENNA DEL AR OPPNAD. STIRRA
EI IN I STRALEN ()(H BETRAKTA FJ STRALEN MED omsKA INSIRUMENT

ADVERSEVUSYNLIG LASERSI'RALING VED ABNING SE IKKE IND I
STRALENrmLER IKKE MED OIT'ISKE WSTRUMENTER

VARO AVA'ITAESSA oLET ALTrIINA NAKWMION LASERSATEILYLLE
ALA TULIOTA SATEESEEN ALAKA KATSO SITA OlI'lSEN LA|TTEEN LAPI

VARBWGQSYNLIGILASERSRALMNG NAR DENNA DEL AR OIINAD.
STIRRA EIIN I STKALEN OCH BETRAKTA EI STKALEN GENOM OPUSKT

INSTRUMENT

ADVERSEL'VUSYNLIG LASERSTKALING NAR DEKsEL AINFS STIRRIKKE
INN I STRALEN ELLER SE DIREKTE MED OIT'ISKE INSTRUMENTER

LASER KLASSE 1

LUOKAN 1 LASERLAITE

IIIIIIII IIIIIIIIIIIII
DD j-j @ DDDDDD DD

KLASS 1 LASERAPPARAT

LASER TRIDY 1
LASER TRIEDY 1

CLASS I LASER PRODUCT
APPAREIL A LASER DE CLASSE l

PRODUCT!) LASER DE CLASE I

(For Europe)

IMPORTANT SERVICE NOTES (FOR U.K. ONLY)

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.

Set name set value

Withstanding Voltage Tester

Test voltage 4,240 VPEAK
3,000 VRMS

Set time 6 secs

Set current(Cutoff current) 4 mA

Unit

Judgment

OK: The GOOD" lamp lights.

NG: The NG lamp lights and the buzzor sounds.

WITHSTANDING
VOLTAGE TESTER

e.

PROBE

e-CD- UNIT

SHORT-CIRCUT
AC POWER
SUPPLY CORD

CONNECT THE PROBE
TO GND OF CHASSIS
SCREW TERMINAL