PIONEER DV-350-K/WYXK Service Manual

PIONEER DV-350-K/WYXK Service Manual
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Service Manual for PIONEER DV-350-K/WYXK, 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 2002

RRV2610

T ZZE MAY 2002 Printed in Japan

For details, refer to "Important symbols for good services".

DVD PLAYER

DV-454-K

DV-454-S

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

Model

Power Requirement

Regional restriction

codes (Region No.)

Remarks

DV-454-K

AC220-240V

DV-454-K

AC220-240V

DV-454-K

AC220-240V

DV-454-S

AC220-240V

Type

WYXU

WYXU/FRGR

WVXU

WYXU

WYXU/FRGR

WVXU

AC220-240V

STANDBY/ON

OPEN/

DV-454-K

Serial No.

Confirm it

DV-454-K

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

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

safely, youshould 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

Additional Laser Caution

: See page 53.

1. Laser Interlock Mechanism

· Loading switch (S101 on the LOAB Assy) is used for interlock

mechanism of the laser.

When this switch turned ON in SW2 (XCLOSE) side (OPEN signal is

0V and XCLOSE signal is 3.5V), a laser becomes the status which can

completely oscillation.

Furthermore, the laser completely oscillates in the disc judgment and

disc playback.

When player is power ON state and laser diode is not completely

oscillating, 780nm laser diode is always oscillating by half power.

· Laser diode is driving with Q101 (650nm LD) and Q102 (780nm LD)

on the FJMB 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.

The interlock mechanism mentioned above becomes invalid in this

mode.

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

the naked eye will cause exposure to the laser beam.

LABEL CHECK

(Printed on the Rear Panel)

DV-454-K

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

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

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

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

2.3 LOADING MECHANISM ASSY ................................................................................................................... 10

2.4 TRAVERSE MECHANISM ASSY-S ............................................................................................................ 14

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ............................................................................................ 16

3.1 BLOCK DIAGRAM ....................................................................................................................................... 16

3.1.1 SIGNAL ROUTE ........................................................................................................................................ 16

3.1.2 POWER SUPPLY BLOCK ........................................................................................................................ 18

3.1.3 WAVEFORMS ........................................................................................................................................... 19

3.2 LOAB ASSY and OVERALL WIRING DIAGRAM ........................................................................................20

3.3 FJMB ASSY 1/5 [FRONT END BLOCK] ...................................................................................................... 22

3.4 FJMB ASSY 2/5 [BACK END BLOCK] ........................................................................................................ 24

3.5 FJMB ASSY 3/5 [AUDIO BLOCK] ............................................................................................................... 26

3.6 FJMB ASSY 4/5 [VIDEO BLOCK] ................................................................................................................ 28

3.7 FJMB ASSY 5/5 [FL CONTROL BLOCK] .................................................................................................... 30

3.8 IRKY and PSWB ASSYS ............................................................................................................................. 32

3.9 POWER SUPPLY UNIT (VWR1352) ........................................................................................................... 34

3.10 POWER SUPPLY UNIT (VWR1354) ......................................................................................................... 35

3.11 SCRB ASSY ............................................................................................................................................... 36

4. PCB CONNECTION DIAGRAM ......................................................................................................................... 39

4.1 LOAB ASSY ................................................................................................................................................. 39

4.2 FJMB ASSY .................................................................................................................................................. 40

4.3 IRKY and PSWB ASSYS ............................................................................................................................. 44

4.4 POWER SUPPLY UNIT (VWR1352) ........................................................................................................... 45

4.5 POWER SUPPLY UNIT (VWR1354) ........................................................................................................... 46

4.6 SCRB ASSY ................................................................................................................................................. 47

5. PCB PARTS LIST ............................................................................................................................................... 48

6. ADJUSTMENT .................................................................................................................................................... 51

6.1 ADJUSTMENT ITEMS AND LOCATION ..................................................................................................... 51

6.2 JIGS AND MEASURING INSTRUMENTS ................................................................................................... 51

6.3 NECESSARY ADJUSTMENT POINTS ....................................................................................................... 52

6.4 TEST MODE ................................................................................................................................................. 53

6.5 MECHANISM ADJUSTMENT ...................................................................................................................... 54

7. GENERAL INFORMATION ................................................................................................................................ 57

7.1 DIAGNOSIS .................................................................................................................................................. 57

7.1.1 TEST MODE .............................................................................................................................................. 57

7.1.2 DISPLAY OF THE MECHANISM ERROR HISTORY .............................................................................. 63

7.1.3 TEST POINTS LOCATION & WAVEFORMS ........................................................................................... 66

7.1.4 TROUBLE SHOOTING ............................................................................................................................. 71

7.1.5 SEQUENCE AFTER THE POWER ON .................................................................................................... 73

7.1.6 DISASSEMBLY ......................................................................................................................................... 74

7.2 IC .................................................................................................................................................................. 79

7.3 CLEANING ................................................................................................................................................... 97

8. PANEL FACILITIES ............................................................................................................................................ 98

CONTENTS

DV-454-K

1. SPECIFICATIONS

· Manufactured under license from Dolby

Laboratories. "Dolby" and the double-D

symbol are trademarks of Dolby Laboratories.

· "DTS" is a registered trademark of Digital

Theater Systems, Inc.

· TruSurround and the

® symbol are

trademarks of SRS Labs, Inc. TruSurround

technology is incorporated under license from

SRS Labs, Inc.

General

System ........................... DVD-Video, Video CD

CD and MP3 files

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

Power consumption..................................14 W

Power consumption (standby)..................... 0.3 W

Weight .................................................... 2.5 kg

Dimensions

DV-454 ............420 (W) x 55 (H) x 278 (D) mm

Operating temperature..............+5

°C to +35°C

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

(no condensation)

S-Video output

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

)

C (color) - Output level.......... 286 mVp-p (75

)

Jack .............................................. S-Video jack

Video output

Output level ..................................1 Vp-p (75

)

Jack ...................................................RCA jack

AV connector output

AV Connectors (21-pin connector assignment)

AV connector input/output ..... 21-pin connector

This connector provides the video and audio

signals for connection to a compatible colour

TV or monitor.

PIN no.

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

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

15 ................................................................R or C out

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

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

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

19 ................................................... Video out or Y out

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

Audio output (1 stereo pair)

Output level .......................During audio output

200 mVrms (1 kHz, 20 dB)

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

Jacks ................................................. RCA jack

Digital audio characteristics

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

(DVD fs: 96 kHz)

S/N ratio ................................................ 118 dB

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

Total harmonic distortion .....................0.0016%

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

(0.001%W. PEAK) or lower

Digital output

Optical digital output ...........Optical digital jack

Coaxial digital output ......................... RCA jack

Accessories

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

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

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

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

Operating Instructions ....................................1

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

· The specifications and design of this

product are subject to change without

notice, due to improvement.

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

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

Audio/Video Cable (L=1.5m): XDE3049

AA/R6P Dry Cell Batteries

Remote Control : VXX2800

Accessories

White

Red

Yellow

CLEAR

ENTER

ANGLE

AUDIO

TOP MENU

SETUP

SUBTITLE

PLAY MODE SURROUND

ZOOM

DISPLAY

RETURN

ENTER

STANDBY/ON

OPEN/CLOSE

Power Cable [Other Types]

: ADG1154

Power Cable [WVXU Type]

: ADG1156

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