Yamaha DVD-C900 User manual

DVD-C900
DVD-C900
100653
SERVICE MANUAL
DVD PLAYER
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 authorization,
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 retrofit. Should any discrepancy appear to
exist, please contact the distributor's 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: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to
the unit.
IMPORTANT NOTICE
DVD-C900
SERVICE MANUAL
DISC MODE
ANGLE RETURN
MULTI SPEED
TITLE/INDEX
AUDIO SELECT
SUBTITLE
OFF/ON
DVD1
TITLE
MENU
SET UP
ON SCREEN
STOP STILL/PAUSE
321 54
7
PLAY
6
+10
098
TIME
OPEN/
CLOSEDISC SKIP
CANCEL
RANDOM PROG S/F REPEAT A-B
SKIP/SEARCH
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

DVD-C900
DVD-C900
1. Critical Components Information.
Components having special characteristics are marked and
must be replaced with parts having specifications equal to
those originally installed.
2. Leakage Current Measurement (For 120V Models Only).
When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated
from supply circuits.
●Meter impedance should be equivalent to 1500 ohm shunted
by 0.15µF.
●Leakage current must not exceed 0.5mA.
●Be sure to test for leakage with the AC plug in both
polarities.
EQUIPMENT
UNDER TEST
WALL
OUTLET
INSULATING
TABLE
AC LEAKAGE
TESTER OR
EQUIVALENT
<
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 OR REPAIRED BY ANYONE EXCEPT PROPERLY
QUALIFIED SERVICE PERSONNEL.
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
■ TO SERVICE PERSONNEL
1
This set employs a laser. Therefore, be sure to carefully
follow the instructions below when servicing .
1. Pickup
●Wave length : 655 nm
●Laser power : CLASS II
2. When checking the laser diode emission, keep your
eyes more than 30 cm away from the objective lens.
■ CONTENTS
TO SERVICE PERSONNEL .........................................1
PREVENTION OF ELECTRO STATIC DISCHRGE (ESD) TO
ELECTRO STATICALLY SENSITIVE (ES) DEVICES.......................
2
SPECIFICATIONS .........................................................3
REAR PANELS .............................................................4
PRECAUTION LASER DIODE .....................................5
HANDLING PRECAUTIONS FOR TRAVERS DECK ..5
INTERNAL VIEW ..........................................................6
DISASSEMBLY PROCEDURES ..............................7~8
REPLACING THE MAIN PARTS OF THE TRAVERSE UNIT .. 9~10
GREASE APPLICATION DIAGRAM..........................10
MAIN P.C.B. OPERATION CHECK ........................... 11
ADJUSTMENT.......................................................12~13
TEST MODE ..........................................................15~26
TROUBLESHOOTIG .............................................27~30
IC DATA ................................................................31~46
IC BLOCKS ...........................................................47~52
PIN CONNECTION DIAGRAM ...................................52
DISPLAY DATA ..........................................................53
BLOCK DIAGRAM ................................................54~55
PRINTED CIRCUIT BOARD .................................56~65
SCHEMATIC DIAGRAM .......................................66~68
PARTS LIST ..........................................................69~84
SWITCHING POWER SUPPLY ............................85~87
REMOTE CONTROL TRANSMITTER........................88
OPERATING INSTRUCTION ................................89~96
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

DVD-C900
DVD-C900
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.
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.
2
■PREVENTION OF ELECTRO STATIC DISCHARGE (ESD) TO ELECTRO
STATICALLY SENSITIVE (ES) DEVICES
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

DVD-C900
DVD-C900
U ....... U.S.A. model
R ....... General model
T ....... China model
Manufactured under license from Dolby Laboratories Licens-
ing Corporation. "Dolby" and the double-D symbol Vare
trademarks of Dolby Laboratories Licensing Corporation.
■SPECIFICATIONS
3
■AUDIO SECTION
Frequency Response
DVD (48kHz Sampling) 2 Hz to 22 KHz
DVD (96kHz Sampling) 2 Hz to 44 KHz
CD, Video CD 2 Hz to 20 KHz
Harmonic Distortion+Noise (1kHz) 0.002% or less
S/N Ratio 115 dB or more (Weighted)
Dynamic Range
DVD (48kHz, 24 bit) 104 dB or more
CD, Video CD 100 dB or more
Output Voltage (1 kHz, 0 dB) 2.0 ±0.3V
■VIDEO SECTION
VIDEO output 1 Vp-p (75 ohms)
S VIDEO output
Y output 1 Vp-p (75 ohms)
C output
U model 0.286 Vp-p (75 ohms)
R, T models 0.3 Vp-p (75 ohms)
COMPONENT VIDEO output
Y output 1 Vp-p (75 ohms)
Pb output
U model 0.648 Vp-p (75 ohms)
R, T models 0.7 Vp-p (75 ohms)
Pr output
U model 0.648 Vp-p (75 ohms)
R, T models 0.7 Vp-p (75 ohms)
■GENERAL
Power Requirements
U model 120V, 60Hz
T model 220V, 50Hz
R model 110 to 240V, 50/60Hz
Power Consumption 30W
Dimensions (W x H x D)
(Without side panels) 435 x 116 x 404 mm
(17-1/8”x 4-9/16”x 15-7/8”)
(With side panels) 473 x 116 x 404 mm
(18-5/8”x 4-9/16”x 15-7/8”)
Weight
(Without side panels) 6.2 kg (13 lbs 10 oz)
(With side panels) 7.2 kg (15 lbs 13 oz)
Accessories Audio/video connection cord
Remote control transmitter
Dry-cell: x2 (Size “AA”, R06)
* Specifications subject to change without notice.
LOCALE MANAGEMENT INFORMATION
Locale Management Information : This DVD player is designed and manufactured to respond to the Locale
Management Information that is recorded on a DVD disc. If the Locale number described on the DVD disc does not
correspond to the Locale number of this DVD player, this DVD player cannot play this disc.
This product incorporates copyright
protection technology that is
protected by method claims of
certain U.S. patents and other
intellectual property rights owned
by Macrovision Corporation and
other rights owners. Use of this
copyright protection technology
must be authorized by Macrovision
Corporation, and is intended for
home and other limited viewing uses
only unless otherwise authorized
by Macrovision Corporation.
Reverse engineering or disassembly
is prohibited.
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

DVD-C900
DVD-C900
■REAR PANELS
▼U model
▼R model
▼T model
4
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com