Sharp cd dv 777w

Page 1

CD-DV999W

SHARP SERVICE MANUAL

Illustration: CD-DV999W

MODEL

N0. 8644YCDDV777W

DVD MINI SYSTEM

CD-DV777W

CD-DV777W DVD Mini System consisting of CD-DV777W (main unit)
and CP-DV777 (speaker system).

MODEL

DVD MINI SYSTEM

CD-DV999W

CD-DV999W DVD Mini System consisting of CD-DV999W (main unit)
and CP-DV999 (speaker system).

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

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CONTENTS
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CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications
[2] Names of parts.

CHAPTER 2. ADJUSTMENTS
[1] Mechanism section
[2] Tuner section
[3] DVD/CD section
[4] TEST Mode ..........
[5] CD Changer mechanism section

CHAPTER 3. MECHANISM BLOCKS
[1] Caution on diassembly...
[2] Removing and reinstalling the main parts ...... 3-4

CHAPTER 4. DIAGRAMS
[1] Block diagrams .............................................. 4-1

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Parts marked with "A " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for

maintaining the safety and performance of the set.

SHARP CORPORATION

CHAPTER 5. CIRCUIT DESCRIPTION
[1] Notes on schematic diagram
[2] Types of transistor and LED.
[3] Waveforms of DVD circuit..
[4] Voltage ...............................

CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
LAYOUT

[1] Schematic diagram .....
[2] Wiring side of PWB .....

...... 6-1
....6-16

CHAPTER 7. FLOWCHART
[1] Troubleshooting...

CHAPTER 8. OTHERS
[1] Function table of IC .
[2] FL Display ...................

Parts Guide

This document has been published to be used
for after sales service only.

The contents are subject to change without notice.

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CD-DV999W

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
IMPORTANTTHAT THE FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES
AGAINST EXPOSURE TO THE LASER BEAM.
1-WHEN THE CABINET IS REMOVED, THE POWER IS TURNED 0N WITHOUT A 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.

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(110 V, 127 V, 220 V or 230 V - 240 V AC).

AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

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