Sharp cd bk 280 v service manual

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CD-BK260V/CD-BK2700V/CD-BK280V

SHARP SERVICE MANUAL

N0. SB139CDBK260V

VIDEO CD MINI SYSTEM

MODEL CD-BK260V

CD-BK260V Video CD Mini System consisting of
CD-BK260V (main unit) and CP-BK260 (speaker system).

VIDEO CD MINI SYSTEM

CD-BK2700V Video CD Mini System consisting of
CD-BK2700V (main unit) and CP-BK2700 (speaker system).

VIDEO CD MINI SYSTEM

MODEL CD-BK280V

Illustration: CD-BK280V CD-BK280V Video CD Mini System consisting of
CD-BK280V (main unit), CP-BK280 (front speakers)
mm, [3ng1 and GBOXSOO70AWM1 (surround speakers).
@fléfi VIDEO CD - In the interests 01 user-safety the set should be restored to its

original condition and only parts identical to those specified be

MP3 6%
/- CONTENTS %

SAFETY PRECAUTION FOR SERVICE MANUAL
VOLTAGE SELECTION ..........................................
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR.
SPECIFICATIONS
NAMES OF PARTS ..
OPERATION MANUAL
DISASSEMBLY ............
REMOVING AND REINSTALLING THE MAIN PARTS.
ADJUSTMENT ..
NOTES ON SCH
TYPES OF TRANSISTOR AND LED.
BLOCK DIAGRAM .............................
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD
VOLTAGE ..................................
WAVEFORMS OF CD CIRCUIT.
TROUBLESHOOTING ........
FUNCTION TABLE OF IC
FL DISPLAY...
REPLACEMEN

/

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This document has been published to be used

SHARP CORPORATION for after sales service only.

The contents are subject to change without notice.

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CD-B K260V/CD-BK2700V/CD-BK280V

SAFETY PRECAUTION FOR SERVICE MANUAL

WARNINGS
THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER
COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS
IMPORTANT THATTHE FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES
AGAINST EXPOSURE TO THE LASER BEAM.
1-WHEN THE CABINET IS REMOVED, THE POWER ISTURNED ON WITHOUTA COMPACT DISC IN POSITION AND THE
PICKUP IS ON THE OUTER EDGE 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 UNIT AND REPLACEMENT SERVICE PARTS ARE ALL FACTORY
PRESET BEFORE SHIPMENT.
DO NOT ATTEMPT TO READJUST THE LASER PICKUP UNIT DURING REPLACEMENT OR SERVICING.
3-UNDER NO CIRCUMSTANCES STARE INTO THE PICKUP LENS AT ANY TIME.
4-CAUTION-USE OF CONTROLS OR ADJUSTMENTS, OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

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

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CLASS I LASER PRODUCT
APPAREIL A LASER DE CLASSE I
PRODUCT!) LASER I]E CLASE I

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,\ mm mm» LAPl
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VOLTAGE SELECTION

Before operating the unit on mains, check the preset voltage. If the voltage is different from your local voltage. adjust the voltage
as follows.
Turn the selectorwith a screwdriver until the appropriate voltage number appears in the window(110 V, 127 V, 220 V or 230 V-24O V AC).

AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

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