Sharp cd bp 1200w 1250w service manual

Page 1

CD-B P1200W/1250W

SHARP SERVICE MANUAL

N0. SGOSZCDP1200W

MINI COMPONENT SYSTEM

MODEL CD-BP1200W

CD-BP1200W Mini Component System consisting of
CD-BP1200W (main unit) and CP-BP1200 (speaker system).

MINI COMPONENT SYSTEM

MODEL CD-BP1250W

CD-BP1250W Mini Component System consisting of
CD-BP1250W (main unit), CP-BP1250 (front speaker) and
GBOXSOO43AWM1 (surround speaker).

Illustration: CD-BP1250W

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

DIGITAL AUDIO used.

/- CONTENTS %

SAFETY PRECAUTION FOR SERVICE MANUAL
VOLTAGE SELECTION
SPECIFICATIONS
NAMES OF PARTS ..
OPERATION MANUAL
DISASSEMBLY ............
REMOVING AND REINSTALLING THE MAIN PARTS.
ADJUSTMENT ......................................
NOTES ON SCHEMATIC DIAGRAM
TYPES OF TRANSISTOR AND LED.

BLOCK DIAGRAM 15
SCHEMATIC DIAGRA .. 18
VOLTAGE ........................ 27

WIRING SIDE OF P.W.BOARD ..
WAVEFORMS OF CD CIRCUIT
TROUBLE SHOOTING .......
FUNCTION TABLE OF IC
FL DISPLAY ........................
REPLACEMENT PARTS LlST/EXPLODED VIEW

\ /

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

CD-BP1200W/1250W
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 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.

The Laser Power Output of the Pickup inside the unit and replacementservice parts have already been adjusted priorto shipping.
No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup.

Under no circumstances look directly into the Pickup Lens at any time.

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

(2
(3
(4
(5

CAUTION

CLASS 1 LASER PRODUCT

APPAREIL R LASER DE CLASSE l
FRIJDUCTO LASER DE CLASE l

OThis Mini Component System is classified as a CLASS
1 LASER product.

O The CLASS1 LASER PRODUCT label is located on the
rear cover.

0 Use of controls, adjustments or performance of proce-
dures other than those specified herein may result in
hazardous radiation exposure.

tamnwtmrrsim mm k'tDtAlkN WHIN mm m w HARE lmu
am . m \, WITH twill mm m

As the laser beam used in this compact disc player is

harmful to the eyes, do not attempt to disassemble the trauma-51w ummwmmm
cabinet. Refer servicing to qualified personnel only. fixéfimifilflntfifinfi MM

om AA mum mom
in» At AKA mm .sm mm N

Laser Diode Properties

Material: GaAlAs «mumumm.mmm [NON mam mu 3mm.
W» l mum» 11er \L blktkri nu) OHIRKL NsTRUMDlLR

Wavelength: 780 nm

Emission Duration: continuous

Laser Output: max. 0.6 mW

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 selector with a screwdriver until the appropriate voltage number appears in the window (110V, 127V, 220V
or 230V - 240V AC).

QACCE0007AW00 QACCJOOOGAWOO
QACCLOOO2AWOO/QACCZOOO8AW00 QPLGA0003AWZZ QPLGA0004AWZZ

QACCA0004AW00

r:

Figure 2 AC POWER SUPPLY CORD AND PLUG ADAPTOR

-2-