Sharp cd ba 250 h service manual

Page 1

CD-BA250H/CD-BA2600H

SHARP SERVICE MANUAL

No. S4126CDBA250H

MINI COMPONENT SYSTEM

MODEL CD-BA250H

CD-BA250H Mini Component System consisting of
CD-BA250H (main unit) and CP-BA250H (speaker system).

[flcwmm MINI COMPONENT SYSTEM

WEE @R-D-s EON
°°-R/RW/ 361%?! MODEL CD-BA2600H

Playable

CD-BA2600H Mini Component System consisting of
CD-BA2600H (main unit) and CP-BA2600H (speaker system).

- Note [or users in U.K.
Flecording 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.

- In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.

/- CONTENTS %

SAFETY PRECAUTION FOR SERVICE MANUAL .......................
IMPORTANT SERVICE NOTES (CD-BA25OH FOR U.K. ONLY) ..
SPECIFICATIONS .....
NAMES OF PARTS
OPERATION MANUAL.
DISASSEMBLY .............
REMOVING AND REINSTALLING THE MAIN PARTS.
ADJUSTMENT .......
BLOCK DIAGRAM .....
SCHEMATIC DIAGRA
VOLTAGE ..........................................
NOTES ON SCHEMATIC DIAGRAM
TYPES OF TRANSISTOR AND LED.
WAVEFORMS OF CD CIRCUIT.
TROUBLESHOOTING ..
FUNCTION TABLE OF I .
FL DISPLAY ......................
WIRING OF PRIMARILY SUPPLY LEADS (CD-BA250H FOR U.K. ONLY)
REPLACEMENT PARTS LIST/EXPLODED VIEW

PACKING METHOD (CD-BA250H FOR U.K. ONLY)

\ /

-
This document has been published to be used

SHARP CORPORATION for alter sales sen/ice only.

The contents are subject to change without notice.

Page 2

CD-BA250H/CD-BA2600H

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
for this model is specified to be lower than Class 1
Requirements. However, the following precautions must be
observed during servicing to protectyoureyes 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 lightfor 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.

CLASS 1 LASER PRODUCT

APPAREIL A LASER DE CLASSE 1
PRODUBTO LASER DE ELASE 1 ll ..

(CD-BA250H for U.K. only)

Laser Diode Properties
Material: GaAlAs
Wavelenglh: 780 nm
Emission Durallon: continuous
Laser Output: max. 0.6 mW

LAUnrmhuuaLl DULR mum Mum Wm no 4le mm mm
mm ox mu» 1) m cm Al mm mm

1. Ail 0mm
\u.~ m NUM umw

mimmi

Am \U .1 mm mum» l m. N m

mum.» uuku mmimwwum mm

VAHOITUS! LAITTEEN KAVTTAMINEN MUULLA KUIN TASSA
KAVTTfiOHJEESSA MAINITULLA TAVALLA SAATTAA ALTISTAA
KAVTTKJAN TURVALLISUUSLUOKAN 1 VLI'I'IAVALLE NAKVMATRHDMIALLE
LASERSATEILVLLE.

VARNING - 0M APPARATEN ANVANDS FA ANNAT SATT IAN | DENNA
BRUKSANVISNING SFECIFICERAS. KAN ANVANDAREN UTSA'I'I'AS F6H
OSVNLIG LASEHSTRALNING, SOM (")VERSKRIDER GRANSEN FéR
LASERKLASS 1.

CLASS 1 LASER PRODUCT
APPAREIL A LASER DE BLASSE 1
PRODUETD LASER DE CLASE 1

LASER KLASSE 1
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT
LASER TfiiDv 1

LASER TRIEDY 1

(Except for U.K.)