Yamaha cdc 905

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COMPACT DISCIPLAYER

CDC-575ICDC-505
CDC-675lCDC-905

SERVICE MANUAL

IMPORTANT NOTICE \

This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA
Products, are already known and understood by the users, and have therefore not been restated

WARNING: Failure to follow appropriate service and safety procedures when servicing this product may
result in personal injury, destruction of expensive components, and failure of the product to
perform as specified. For these reasons, we advise all YAMAHA product owners that any
service required should be performed by an authorized YAMAHA Retailer or the appointed

service representative.

IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authoriza-
tion, certification or recognition of any applicable technical capabilities, or establish a
principle-agent relationship of any form

The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research,
engineering. and service departments of YAMAHA are continually striving to improve YAMAHA products.
Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to
retrofitr Should any discrepancy appear to exist, please contact the distributors Service Division,

WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body
may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge black
wires connect to this buss).

IMPORTANT: Tum the unit OFF during disassembly and part replacement. Recheck all work before you apply
power to the unit. /

I CONTENTS

T0 SERVICE PERSONNEL . .................................... 1~2 DISPLAY DATA ....................... 21
FRONT PANELS .............................. 8 BLOCK DIAGRAM .......................... 22~23
REAR PANELS .. . 4 PRINTED CIRCUIT BOARD . 24~31
SPECIFICATIONS . IC BLOCKS .
INTERNAL VIEW .. . PIN CONNECTION DIAGRAM .
DISASSEMBLY PROCEDURES .............................. 6~7 CDC-575/CDC-505 SCHEMATIC DIAGRAM 34
STANDARD OPERATION CHART CDC-675ICDC-905 SCHEMATIC DIAGRAM 35

TEST MODE
ERROR MESSAGES ..
IC DATA

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This Service Manual uses recycled paper.

PARTS LIST ....36N50
GREASE APPLICATION DIAGRAM .. .. 51
REMOTE CONTROL TRANSMITTER ...... 52~53

Copyright 2004 YAMAHA CORPORATION
This manual is copyrighted by YAMAHA and may not be copied or
redistributed either in print or electronically without permission.

.YAHMAHA

Wfio RPO RATO
amamatsu, apan

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CDC-575/CDC-505ICDC-675ICDC-905

I TO SERVICE PERSONNEL

1. Critical Components Information. WALL EQ ENT [IEESIH'EQFTASE
Components having special characteristics are marked and WM
must be replaced with parts having specifications equal to OUTLET UNDER TEST EQUIVALENT

those originally installed. ®

2. Leakage Current Measurement (For 120V Models Only).
When service has been completed. it is imperative to verify J:-
that all exposed conductive surfaces are properly insulated INSULATING _
from supply circuits. TABLE

: 0 Meter impedance should be equivalent to 1500 ohm shunted
' by 0.15pF.

o Leakage current must not exceed 0.5mA.
0 Be sure to test for leakage with the AC plug in both
polarities.

CAUTION: USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

THE COMPACT DISC PLAYER SHOULD NOT BE ADJUSTED 0R REPAIRED BY ANYONE EXCEPT PROPERLY
QUALIFIED SERVICE PERSONNEL.

PROTECTION OF EYES FROM LASER BEAM DURING SERVICING

This set employs a laser. Therefore, be sure to carefully
iollow the instructions below when servicing .

1, Laser Diode Properties 2. When checking the laser diode emission, keep your
. Material ; GaAlAs eyes more than 30 cm away from the objective lens.
0 Wavelength 2780 nm
0 Emission Duration : Continuous
0 Laser Output : max. 44.6 uW*

* This output is the value measured at a distance
of about 200 mm from the objective lens
surface on the Optical Pick-up Block.

WARNING: CHEMICAL CONTENT NOTICE!

The solder used in the production of this product contains LEAD. In addition. other electrical/electronic
and/or plastic (where applicable) components may also contain traces of chemicals found by the
California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects
or other reproductive harm.

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DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH
FOR ANY REASON WHATSOEVER!

Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale
solder fumes or expose eyes to solder/flux vapor!

If you come in contact with solder or components located inside the enclosure of this product, wash
your hands before handling food.