Yamaha DVDS-5550 Service manual

DVD PLAYER

DVD-S550

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

IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or

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 accumu-

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

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.

recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.

lated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).

DV-S5750

SERVICE MANUAL

IMPORTANT NOTICE

DVD-S550/DV-S5750

■ CONTENTS

TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . . 2–3

PREVENTION OF ELECTRO STATIC DISCHARGE . . . . . .

LOCALE MANAGEMENT INFORMATION . . . . . . . . 4

FRONT PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–6

REMOTE CONTROL PANEL . . . . . . . . . . . . . . . . . . . 6

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

SERVICE HINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

DISASSEMBLY PROCEDURES . . . . . . . . . . . . . . . 8–9

100894

MAINTENANCE FLOW CHART . . . . . . . . . . . . .10–14

BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . 16

PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . .17–21

SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . 22–27

EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

MECHANICAL PARTS LIST . . . . . . . . . . . . . . . . . . . 29

DVD-S550/DV-S5750

■ TO SERVICE PERSONNEL

AC LEAKAGE

1. Critical Components Information Components having special characteristics are marked Z 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.

WALL OUTLET

● Leakage current must not exceed 0.5mA.

● Be sure to test for leakage with the AC plug in both

polarities.

EQUIPMENT UNDER TEST

INSULATING TABLE

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.

TESTER OR EQUIVALENT

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

DVD-S550/DV-S5750

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.

WARNING: Laser Safety

This product contains a laser beam component. This component may emit invisible, as well as visible radiation, which may cause eye damage. To protect your eyes and skin from laser radiation, the following precautions must be used during servicing of the unit.

1) When testing and/or repairing any component within the product, keep your eyes and skin more than 30 cm away from

the laser pick-up unit at all times. Do not stare at the laser beam at any time.

2) Do not attempt to readjust, disassemble or repair the laser pick-up, unless noted elsewhere in this manual.

3) CAUTION : Use of controls, adjustments or performance of procedures other than those specified herein may result in

hazardous radiation exposure.

Laser Emitting conditions:

1) When the Top Cover is removed, and the STANDBY/ON SW is turned to the "ON" position, the laser component will emit

a beam for several seconds to detect if a disc is present. During this time (5-10 sec.) the laser may radiate through the lens of the laser pick-up unit. Do not attempt any servicing during this period! If no disc is detected, the laser will stop emitting the beam. When a disc is loaded, you will not be exposed to any laser emissions.

2) The laser power level can be adjusted with the VR on the pick-up PWB, however, this level has been set by the factory

prior to shipping from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in this manual. Adjustment of this control can increase the laser emission level from the device.

DVD-S550/DV-S5750

Laser Diode Properties

Type: Semiconductor laser GaAlAs Wave length: 650 nm (DVD)

780 nm (VCD/CD)

Output Power: 7 mW (DVD)

10 mW (VCD/CD)

Beam divergence: 60 degree

VARO! : AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTTÖMÄLLE LASER-

SÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.

VARNING! : OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD.

BETRAKTA EJ STRÅLEN.

WARNING

The use of optical instruments with this product will increase eye hazard. Repair handling should take place as much as possible with a disc loaded inside the player.

DVD-S550/DV-S5750

CAUTION VISIBLE AND INVISIBLE LASER RADIATION WHEN

OPEN. AVOID EXPOSURE TO BEAM.

ADVARSEL SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING.

UNDGÅ UDSÆTTELSE FOR STRÅLING.

ADVARSEL SYNLIG OG USYNLIG LASERSTRÅLING NÅR DEKSEL

ÅPNES. UNNGÅ EKSPONERING FOR STRÅLEN.

VARNING SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR

DENNA DEL ÄR ÖPPNAD. BETRAKTA EJ STRÅLEN.

VARO! AVATTAESSA OLET ALTTIINA NÄKYVÄLLE JA

CAUTION:

DANGER:

INVISIBLE LASER RADIATION WHEN OPEN DO NOT STARE INTO BEAM

INVISIBLE LASER RADIATION WHEN OPEN AVOID DIRECT EXPOSURE TO THE BEAM

NÄKYMÄTTÖMÄLLE LASER SÄ TEILYLLE. ÄLÄ KATSO SÄTEESEEN.

VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG

WENN ABDECKUNG GEÖFFNET. NICHT DEM STRAHL AUSSETSEN.

DANGER VISIBLE AND INVISIBLE LASER RADIATION WHEN

OPEN. AVOID DIRECT EXPOSURE TO BEAM.

ATTENTION RAYONNEMENT LASER VISIBLE ET INVISIBLE EN CAS

D'OUVERTURE. EXPOSITION DANGEREUSE AU FAISCEAU

Warning for power supply

The primary side of the power supply carries live mains voltage when the player is connected to the mains even when

the player is switched off !

This primary area is not shielded so it is possible to touch copper tracks and/or components when servicing the player. Service personnel have to take precautions to prevent touching this area or components in this area.

Note:

The screws on the DVD mechanism may never be touched, removed or re-adjusted.

Handle the DVD mechanism with care when the unit has to be exchanged!

The DVD mechanism is very sensitive for dropping or giving shocks.

DVD-S550/DV-S5750

■ PREVENTION OF ELECTRO STATIC DISCHARGE

The laser diode in the DVD mechanism may be damaged due to static electricity from clothes or the human body. Use caution to prevent electro static damage when servicing or handling the DVD-mechanism.

1. Grounding for electro static damage prevention

Some devices, such as the DVD player, use an optical pickup (laser diode) that will be damaged by static electricity in the working environment. Only attempt service after ensuring that all grounding procedures have been completed.

1. Worktable grounding

Put a grounded conductive material (sheet) or iron sheet on the area where the optical pickup is placed.

2. Human body grounding

Use an anti-static wrist strap to discharge the static electricity from your body.

Anti-static wrist strap

DVD-S550/DV-S5750

1MΩ

Conductive material (sheet) or steel sheet

2. Handling Precautions for DVD mechanism

1. Handle the DVD mechanism gently, as it is an extremely high-precision assembly.

2. The flexible cable lines may break if an excessive force is applied to it. Use caution when handling the cable.

3. The semi-fixed resistor for laser power adjustment should not be adjusted. Do not turn the resistor.

■ 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.

■ FRONT PANELS

▼ DVD-S550 (U, R, K, A, B, G, E, P models)

▼ DV-S5750 (U, A models)

■ REAR PANELS

▼ DVD-S550 (U model)

DVD-S550/DV-S5750

▼ DVD-S550 (R model)

▼ DVD-S550 (K model)

▼ DVD-S550 (A model)

▼ DVD-S550 (B, G, E models)

DVD-S550/DV-S5750

▼ DVD-S550 (P model)

▼ DV-S5750 (U model)

▼ DV-S5750 (A model)

DVD-S550/DV-S5750

■ REMOTE CONTROL PANEL

■ SPECIFICATIONS

DVD-S550/DV-S5750

PLAYBACK SYSTEM

DVD Video Video CD & SVCD CD PICTURE CD CD-R, CD-RW DVD+R, DVD+RW DVD-R, DVD-RW

VIDEO PERFORMANCE

Video (CVBS) Output 1 Vpp into 75 ohm S-Video Output Y: 1Vpp into 75 ohm

C: 0.3Vpp into 75 ohm RGB (SCART) Output Component Video Output Y: 1Vpp into 75 ohm

AUDIO FORMAT

Digital Mpeg/Dolby Compressed Digital

Digital/DTS PCM 16, 20, 24 bits

MP3(ISO 9660) 24, 32, 56, 64, 96, 128, 256 kbps

WMA 32 kbps-192 kbps, mono, stereo

Analog Sound Stereo

AUDIO PERFORMANCE

DA Converter 24 bits Signal-Noise (1kHz) 105 dB Dynamic Range (1kHz) 100 dB DVD fs 96 kHz 2 Hz - 44 kHz

SVCD fs 48 kHz 2 Hz - 22 kHz

CD/VCD fs 44.1 kHz 2 Hz - 20 kHz Distortion and Noise (1kHz) 0.003%

0.7 Vpp into 75 ohm (B, G, E models)

Pb/Cb Pr/Cr: 0.7Vpp into 75 ohm

fs, 44.1, 48, 96 kHz

fs 16, 22.05, 24, 32, 44.1, 48 kHz

(U, R, K, A, P models)

fs 48 kHz 2 Hz - 22 kHz

fs 44.1 kHz 2 Hz - 20 kHz

GENERAL

Dimensions (W x H x D) 435 x 51 x 310 mm

(17-1/8" x 2" x 12-3/16") Weight Approx. 2.6 Kg (5 lbs. 12 oz) Finish [DVD-S550] Gold Color (R, K models)

Black Color (U, A, B, G, E, P models)

Titanium Color (U, G, E models)

Silver Color

[DV-S5750]

Power Supply AC120V, 60 Hz (U model)

Power Consumption Approx. 14W Standby Power Consumption < 1W

ACCESSORIES

Audio/Video Cable (U, R, K, A, P models),

Black Color (U model)

Silver Color

AC240V, 50 Hz (A model)

AC110–240V, 50/60 Hz (R, K, P models)

AC230V, 50 Hz (B, G, E models)

Remote Control x 1, Battery x 2,

Audio Pin Cable (B, G, E models),

Video Cable (B, G, E models)

(B, G, E models)

(U, A models)

* Specifications subject to change without prior notice.

U ......... U.S.A model R ..........General model

K ......... Korean model A .......... Australian model

B ......... British model G .......... European model

E .......... South European model P .......... South American model

Manufactured under license from Dolby Laboratories. “Dolby” and the double-D symbol are trademarks of Dolby Laboratories.

“DTS” and “DTS Digital Out” are trademarks of Digital Theater Systems, Inc.

DVD-S550/DV-S5750

TV STANDARD (PAL/50Hz) (NTSC/60Hz)

Number of lines 625 525 Playback Multistandard (PAL/NTSC)

CONNECTIONS

SCART Euroconnector (B, G, E models) Y Output Cinch (green) Pb/Cb Output Cinch (blue) Pr/Cr Output Cinch (red) S-Video Output Mini DIN, 4 pins Video Output Cinch Audio Output (L+R) Cinch Digital Output 1 coaxial, 1 optical

IEC60958 for CDDA / LPCM/ MPEG1 IEC61937 for MPEG 2, Dolby Digital and DTS

DivX, DivX Certified, and associated logos are trademarks of DivXNetworks, Inc and are used under license.

DVD-S550/DV-S5750

■ SERVICE HINTS

● Repair Tips

1) DVD Module

The DVD Mechanism and Mono Board together as a set are called the DVD Module. If a failure has occurred with any part of the DVD Module, be sure to replace the DVD Module as a whole. Neither the DVD Mechanism nor Mono Board can be replaced independently.

2) Power Supply Unit

The power supply unit has to be replaced in case of failure.

3) PCB Ass’y

When the Front Board or AV Board has failed, replace the faulty board.

■ DISASSEMBLY PROCEDURES

HOW TO MANUALLY EJECT THE TRAY

a. Turn the player bottom up. b. Move the slider in the direction indicated with a screw driver until the tray is ejected. c. Gently pull the tray out.

DVD-S550/DV-S5750

Tr ay

Bottom Frame

Rear

Front

Screw Driver

Slider

See EXPLODED VIEW for item numbers.

Top Cover [240]

➔ Remove 5 screws [250].

(2 on side and 3 on rear side)

➔ Lift cover from rearside to

remove.

DVD-S550/DV-S5750

Mounting

Dismounting

➔ Remove 3 cable connections.

Front Panel [101]

[1305][1105][1106]

➔ Open Tray (see HOW TO MANUALLY

EJECT THE TRAY).

➔ Unlock Tray cover and close tray. ➔ Unlock Front panel from frame by

releasing successively 4 snaps (2 on the side and 2 on the bottom).

Front (1) Display board [1100(1)]

➔ Remove 4 screws [260]

(Board to Front panel).

➔ Dismount board.

Front (2) Standby board [1100(2)]

➔ Remove 1 screw [260].

(Board to Front panel).

➔ Dismount board. ➔ Remove cable connection. [1202]

➔ Remove 3 cable connections.

DVD Mechanism

[1101][1102][1103]

➔ Open tray (see HOW TO MANUALLY

EJECT THE TRAY).

➔ Unlock Tray cover and close tray. ➔ Remove 4 screws [256]

(DVD Mechanism to bottom).

➔ Lift DVD Mechanism up slightly and

move it backward to remove.

AV board [1002]

➔ Remove 4 cable connections.

[1112][1302][1303][1305]

➔ Remove 6 (U, R, K, A, P models) or

8 (B, G, E models) screws [260] (Board to rear panel).

➔ Release 2 spacers.

(Board to bottom frame).

➔ Dismount board.

DVD-S550/DV-S5750

➔ Remove 7 cable connections.

MONO board

[1101][1102][1103][1104][1105] [1106][1301]

➔ Remove 4 screws [255] (Board to

bottom frame).

➔ Dismount board.

➔ Remove 2 cable connections.

[CN101][CN202]

➔ Remove 2 screws [255].

(Board to bottom frame)

➔ Release 2 spacers.

(Board to bottom frame).

➔ Dismount board.

When disassembling,use the special screw driver with such tip shape as shown in figure.

T10

2.7 mm

Power supply unit [1600]

+ 21 hidden pages