PIONEER DV-2850-S/WYXTL/UR Service Manual

PIONEER DV-2850-S/WYXTL/UR Service Manual
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Service Manual for PIONEER DV-2850-S/WYXTL/UR, downloadable as a PDF file.

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ORDER NO.

PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.

PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium

PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION 2005

STANDBY/ON

OPEN/CLOSE

TOP MENU

RETURN

HOME

DVD PLAYER

DV-2850

DV-2850-S

RRV3123

DVD PLAYER

DV-2850-S

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Model

Type

Power Requirement

Region No.

Remarks

DV-2850-S

WYXTL

AC220-240V

DV-2850-S

WVXTL

AC220-240V

For details, refer to "

Important Check Points for Good Servicing" .

T-ZZR MAR. 2005 printed in Japan

ORDER NO.

PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.

PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium

PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION 2005

STANDBY/ON

OPEN/CLOSE

TOP MENU

RETURN

HOME

DVD PLAYER

DV-2850

DV-2850-S

RRV3123

DVD PLAYER

DV-2850-S

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Model

Type

Power Requirement

Region No.

Remarks

DV-2850-S

WYXTL

AC220-240V

DV-2850-S

WVXTL

AC220-240V

For details, refer to "

Important Check Points for Good Servicing" .

T-ZZR MAR. 2005 printed in Japan

DV-2850-S

SAFETY INFORMATION

This service manual is intended for qualified service technicians ; it is not meant for the casual do-

it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been

trained to properly and safely repair complex products such as those covered by this manual.

Improperly performed repairs can adversely affect the safety and reliability of the product and

may void the warranty. If you are not qualified to perform the repair of this product properly and

safely, you should not risk trying to do so and refer the repair to a qualified service technician.

WARNING !

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.

A SPECIALLY INSTRUCTED PERSON SHOULD DO SERVICING OPERATION OF THE APPARATUS.

LASER DIODE CHARACTERISTICS

FOR DVD : MAXIMUM OUTPUT POWER : 5 mW

WAVELENGTH : 650 nm

FOR CD :

MAXIMUM OUTPUT POWER : 5 mW

WAVELENGTH : 780 nm

LABEL CHECK

Location: inside of the unit

VORSICHT : SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG,WENNABDECKUNG GEÖFFNET NICHT DEM STRAHL AUSSETZEN !

CAUTION

: VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN. AVOID EXPOSURE TO BEAM.

ADVARSEL : SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING UNDGÅ UDSÆTTELSE FOR STRÀLING.

VARO!

: AVATTAESSA ALTISTUT NÄKYVÄ JA NÄKYMÄTTÖMÄLLE LASERSATEIL YLLE. ÄLÄ KATSO SÄTEESEN.

VARNING

: SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD BETRAKTA EJ STRÅLEN.

7260000356 SH

CUIDADO

: RADIACIÓN LÁSER VISIBLE E INVISIBLE AL ESTAR ABIERTO. EVITAR EXPOSICIÓN AL RAYO.

Additional Laser Caution

: See page 53.

· Laser diode is driving with Q2303,Q2305(650nm LD) and Q2302,

Q2304(780nm LD)on the DVD MT PCB Assy.

Therefore, when short-circuit between the emitter and collector of these

transistors or the base voltage is supplied for transistors turn on, the

laser oscillates. (failure mode)

· In the test mode

, there is the mode that the laser oscillates except

for the disc judgment and playback. LD ON mode in the test mode

oscillates with the laser forcibly.

2. When the cover is open, close viewing through the objective lens with

the naked eye will cause exposure to the laser beam.

(Printed on the Rear Panel)

DV-2850-S

[Important Check Points for Good Servicing]

In this manual, procedures that must be performed during repairs are marked with the below symbol.

Please be sure to confirm and follow these procedures.

1. Product safety

Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by

following the safety instructions described in this manual.

1 Use specified parts for repair.

Use genuine parts. Be sure to use important parts for safety.

2 Do not perform modifications without proper instructions.

Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as

radio/TV interference and foreign noise.

3 Make sure the soldering of repaired locations is properly performed.

When you solder while repairing, please be sure that there are no cold solder and other debris.

Soldering should be finished with the proper quantity. (Refer to the example)

4 Make sure the screws are tightly fastened.

Please be sure that all screws are fastened, and that there are no loose screws.

5 Make sure each connectors are correctly inserted.

Please be sure that all connectors are inserted, and that there are no imperfect insertion.

6 Make sure the wiring cables are set to their original state.

Please replace the wiring and cables to the original state after repairs.

In addition, be sure that there are no pinched wires, etc.

7 Make sure screws and soldering scraps do not remain inside the product.

Please check that neither solder debris nor screws remain inside the product.

8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.

Damaged power cords may lead to fire accidents, so please be sure that there are no damages.

If you find a damaged power cord, please exchange it with a suitable one.

9 There should be no spark traces or similar marks on the power plug.

When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure

connections and suitable usage. Please exchange the power cord if necessary.

0 Safe environment should be secured during servicing.

When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries.

Please pay attention to your surroundings and repair safely.

2. Adjustments

To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.

Adjustments should be performed in accordance with the procedures/instructions described in this manual.

4. Cleaning

For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper

cleaning should be performed to restore their performances.

3. Lubricants, Glues, and Replacement parts

Use grease and adhesives that are equal to the specified substance.

Make sure the proper amount is applied.

5. Shipping mode and Shipping screws

To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be

installed before shipment. Please be sure to follow this method especially if it is specified in this manual.

DV-2850-S

CONTENTS

SAFETY INFORMATION ..................................................................................................................................... 2

1. SPECIFICATIONS ............................................................................................................................................ 5

2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 6

2.1 PACKING SECTION .................................................................................................................................. 6

2.2 EXTERIOR SECTION............................................................................................................................... 8

2.3 05 DVD MECHA SECTION...................................................................................................................... 10

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..........................................................................................12

3.1 BLOCK DIAGRAM ................................................................................................................................... 12

3.2 OVERALL WIRING CONNECTION DIAGRAM........................................................................................ 14

3.3 DVD MT PCB (1/5) ASSY ........................................................................................................................ 16

3.4 DVD MT PCB (2/5) ASSY ........................................................................................................................ 18

3.5 DVD MT PCB (3/5) ASSY ........................................................................................................................ 20

3.6 DVD MT PCB (4/5) ASSY ........................................................................................................................ 22

3.7 DVD MT PCB (5/5) ASSY ........................................................................................................................ 24

3.8 OPERATION, OPERATION 2 and OPERATION 3 PCB ASSYS ............................................................. 26

3.9 POWER PCB (1/2) ASSY ........................................................................................................................ 28

3.10 POWER PCB (2/2) ASSY ...................................................................................................................... 30

3.11 WAVEFORMS ........................................................................................................................................ 32

4. PCB CONNECTION DIAGRAM ..................................................................................................................... 35

4.1 LOADING and SW PCB ASSYS.............................................................................................................. 35

4.2 DVD MT PCB ASSY................................................................................................................................. 36

4.3 OPERATION, OPERATION 2 and OPERATION 3 PCB ASSYS ............................................................. 40

4.4 POWER PCB ASSY................................................................................................................................. 44

5. PCB PARTS LIST ........................................................................................................................................... 46

6. ADJUSTMENT ............................................................................................................................................... 52

6.1 WHEN REPLACING DVD DECK ............................................................................................................. 52

6.2 TEST MODE ............................................................................................................................................ 53

6.3 DISC REMOVAL METHOD...................................................................................................................... 54

7. GENERAL INFORMATION ............................................................................................................................. 55

7.1 DIAGNOSIS ............................................................................................................................................. 55

7.1.1 TEST MODE IN ................................................................................................................................. 55

7.1.2 DISPLAY SPECIFICATION OF THE TEST MODE ............................................................................ 56

7.1.3 FUNCTIONAL SPECIFICATION OF THE SHORTCUT KEY ............................................................ 57

7.1.4 SPECIFICATION OF MODEL INFORMATION DISPLAY .................................................................. 58

7.1.5 FUNCTIONAL SPECIFICATION OF THE SERVICE MODE ............................................................. 59

7.1.6 METHOD FOR DIAGNOSING DEGRADATION OF THE LDS ON THE PICKUP ASSY .................. 60

7.1.7 TROUBLE SHOOTING ...................................................................................................................... 61

7.2 DISASSEMBLY ........................................................................................................................................ 63

7.3 IC INFORMATION.................................................................................................................................... 68

7.4 DISC / CONTENT FORMAT PLAYBACK COMPATIBILITY ..................................................................... 78

8. PANEL FACILITIES ........................................................................................................................................ 80

8.1 FRONT PANEL SECTION ....................................................................................................................... 80

8.2 DISPLAY .................................................................................................................................................. 81

8.3 REMOTE CONTROL ............................................................................................................................... 82

DV-2850-S

1. SPECIFICATIONS

Specifications

General

System . . . . . . . . . . . . . . . . . . . . . . DVD player

Power requirements . . AC 220240 V, 50/60 Hz

Power consumption . . . . . . . . . . . . . . . . . 7 W

Power consumption (standby) . . . . . . 0.75 W

Weight . . . . . . . . . . . . . . . . . . . . . . . .

1.7kg

Dimensions:

DV-2850 . . . 420 (W) x 49.5 (H) x 213.6 (D) mm

Operating temperature . . . . . . . +5

°C to +35°C

Operating humidity . . . . . . . . . . . . . 5% to 85%

(no condensation)

AV connector output

AV Connector (21-pin connector assignment)

AV connector output . . . . . . . 21-pin connector

This connector provides the video and audio

signals for connection to a compatible colour TV

or monitor.

PIN no.

1. . . . . . . . . . . . . . . . . . . . . . . . Audio 2/R out

3. . . . . . . . . . . . . . . . . . . . . . . . . . Audio 1/L out

4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND

7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B out

8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Status

11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G out

15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R out

17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND

19. . . . . . . . . . . . . . . . . . . . . . . . . . . Video out

21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND

Component video output

Y (luminance) - Output level . . . 1 Vp-p (75

)

PB (color) - Output level

PR (color) - Output level . . . . . 0.7 Vp-p (75 )

Jack

S-video output

Y (luminance) - Output level . . .

1 Vp-p (75

)

C (color) - Output level. . . . .

286 mVp-p (75

)

Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . S-video

Video output

Output level . . . . . . . . . . . . . . .

1 Vp-p (75

)

Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RCA

Audio output ( 1 stereo pair)

Output level . . . . . . . . . .

During audio output

200 mVrms (1 kHz, 20 dB)

Number of channels . . . . . . . . . . . . . . . . . . . 2

Jacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RCA

Digital audio characteristics

Frequency response . . . . . . . . 4 Hz to 44 kHz

(DVD fs: 96 kHz)

S/N ratio . . . . . . . . . . . . . . . . . . . . . . . . . 115 dB

Dynamic range . . . . . . . . . . . . . . . . . . . . 101 dB

Total harmonic distortion . . . . . . . . . .

0.0023 %

Wow and flutter . . . . . . Limit of measurement

(

±0.001% W. PEAK) or lower

Digital output

Coaxial digital output . . . . . . . . . . . . . RCAjack

Accessories

Audio/video cable. . . . . . . . . . . . . . . . . . . . . . . . 1

Power cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Remote control . . . . . . . . . . . . . . . . . . . . . . . . . . 1

AA/R6P dry cell batteries . . . . . . . . . . . . . . . . . 2

Warranty card . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Operating Instructions

The specifications and design of this product are subject to

change without notice, due to improvement.

Published by Pioneer Corporation.

. . . . 0.7 Vp-p (75

)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RCA

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