Sharp cd ba 1200h

Page 1

CD-BA1200H

SHARP SERVICE MANUAL

No. S4029CDBA1200

CD-BA1200H

CD-BA1200H Mini Component System consisting of
CD-BA1200H (main unit) and CP-BA1200H (speaker system).

COMPACT - In the interests of user-safety the set should be restored to its
D§@ SAVING ENERG original condition and only parts identical to those specified be
STAND v POWFR used.
CONSUMPTION 0.6W
DIGITAL AUDIO - Note for users in U.K.

Recording and playback of any material may require consent
which SHARP is unable to give. Please reler particularly to the
provisions of Copyright Act 1956, the Dramatic and Musical
Prefomers Protection Act 1956, the Preformers Protection Acts
1963 and 1972 and to any subsequent statutory enactments and
orders.

/- CONTENTS -\

SAFETY PRECAUTION FOR SERVICE MANUAL ..
IMPORTANT SERVICE NOTES (FOR U.K. ONLY).
SPECIFICATIONS ..
NAMES OF PARTS
OPERATION MANUAL ..
QUICK GUIDE ...........
DISASSEMBLY ............................................................
REMOVING AND REINSTALLING THE MAIN PARTS . 12
ADJUSTMENT ................................... .
NOTES ON SCHEMATIC DIAGRAM
WAVEFORMS OF CD CIRCUIT ........
BLOCK DIAGRAM ..............................................................
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD
VOLTAGE .............................................
TROUBLESHOOTING (CD SECTION)
FUNCTION TABLE OF IC.
FL DISPLAY ......................
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING METHOD (FOR U.K. ONLY)

This document has been published to be used

SHARP CORPORATION tor after sales service only.

The contents are subject to change without notice.

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CD-BA1200H

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.

(Except for U.K.)

CLASS l LASER PRODUCT
APPAREIL A LASER DE BLASSE 1
PRODUCT!) LASER DE BLASE l

LASER KLASSE 1
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT

(5) CAUTION - Use of controls or adjustments, or performance
of procedures other than those specified herein may result
in hazardous radiation exposure.

LASER TfilDY 1
LASER TRIEDV 1

Laser Diode Properties
Material: GaAlAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW

(For U.K.)

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DLASS l LASER PRODUCT
APPAREIL A LASER DE CLASSE l
PRODUCTO LASER DE ELASE l

rim)!

DLL AK (mm) \ilmu
(mum mm Mm

.mmuw LAM rum u m
0 511A mm L\il rm LAN

lRXl mt. w ms nu, \x mm»
V l bdrm mu El mm 14 mum mum mm
i

ADvastLuaniuiAAum mu KUIKML/FWA SHRRIML
m l Wain tum: 01mm \mmmm mm Muvlui

VAHOITUS! LAI'I'I'EEN KAYTTAMINEN MUULLA KUIN

TAssA

KAYTTéOHJEESSA MAINITU LLA TAVALLA SAATTAA
ALTISTAA KAVTTAJAN TURVALLISUUSLUOKAN 1

YLITTAVALLE NAKYMATToMALLE LASERSATEILYLLE.

VARNING - OMAPPARATENANVANDS PA ANNAT sATT
AN | DENNA BRUKSANVISNING SPECIFICERAS. KAN
ANVANDAREN UTsATTAs FoR OSYNLIG
LASEHSTHALNING, SOM GVERSKRIDEH GRANSEN
F6Fl LASERKLASS 1.