Clarion DXZ945MP, DXZ946MP Service Manual

Clarion Co., Ltd.

50 Kamitoda, Toda-shi, Saitama 335-8511 Japan Service Dept.: 5-66 Azuma , Kitamoto-shi, Saitama 364-0007 Japan Tel: +81-48-541-2335 / 2432 FAX: +81-48-541-2703

Service Manual

AM/FM CD/MP3/WMA Player Built-in DSP/EQ With Touchpanel

Model

Published by Service Dept. 298-6140-00

Printed in Japan

Dec.2003 P

(PE-2635B-A / For U.S.A.)

(PE-2635K-A / For other countries) (PE-2635K-B / For other countries)

SPECIFICATIONS

FM tuner section

Frequency range: 87.9MHz to 107.9MHz(U.S.A.)

87.0MHz to 108.0MHz(OTHERS) Usable sensitivity: 9dBf 50dB quieting sensitivity: 15dBf Alternate channel selectivity:

70dB Stereo separation: 35dB (1kHz) Frequency response: 30Hz to 15kHz (+/-3dB)

AM tuner section

Frequency range: 530kHz to 1710kHz(U.S.A.)

531kHz to 1629kHz(OTHERS) Usable sensitivity: 25uV

CD player section

System: Compact disc digital audio system Usable discs: Compact disc Frequency response: 5Hz to 20kHz (+/-1dB) S/N ratio: 100dB (1kHz) Dynamic range: 96dB (1kHz) Distortion: 0.01%

MP3/WMA mode

MP3 sampling rate: 11.025kHz to 48kHz MP3 bit rate: 8kbps to 320kbps/VBR WMA bit rate: 48kbps to 192kbps Logical format: ISO9660 level1,2

JOLIET or Romeo

Audio section

Maximum power output: 53Wx4 Continous average power output:

18Wx4, into 4ohm, 20Hz to 20kHz,

1%THD Line output level: 4V/F 2ch+4V/R 2ch (CD 1kHz)

4V/NON-FADER 2ch (CD 1kHz)

0.5V/2-ZONE 2ch (CD 1kHz)

Bass control action: +/-12dB (50Hz) Treble control action: +/-12dB (12.5kHz)

General

Power supply voltage: 14.4V DC(10.8V to 15.6V allow-

able) negative ground Current consumption: Less than 15A,3A Speaker impedance: 4ohm(4ohm to 8ohm allowable) Dimensions(mm): Source unit; 178(W)x50(H)x155(D) Remote control unit; 32(W)x56(H)x24(D) Weight: Source unit; 1.7kg Remote control unit; 80g(including battery)

NOTES

* Use only compact discs bearing the or mark. * Some CDs recorded in CD-R/CD-RW mode may not be

usable.

* WMA is the abbreviation of Windows Media Audio, an

audio file format developed by Microsoft Corporation.

marks, or registerd trademarks of Microsoft Corporation in the United States and/or other countries.

* This product includes technology owned by Microsoft Cor-

poration and cannot be used or distributed without a license from MSLGP.

* This product is manufactured under license from Dolby

Laboratories."Dolby","Pro Logic" and the double-D symbol are trademarks of Dolby Laboratories.

* We cannot supply PWB with component parts in principle.

When a circuit on PWB has failure, please repair it by component parts base. Parts which are not mentioned in service manual are not supplied.

* Specifications and design are subject to change without

notice for further improvement.

, and the Windows logo are trade-

- 1 -

DXZ945MP DXZ946MP

COMPONENTS

PE-2635B-A,PE-2635K-A,PE-2635K-B

1. Main unit ----------- 1

2. Rmote controller RCB-164-600 1

3. Battery(SUM-3) ----------- 2

4. Mounting bracket 300-4976-00 1

5. Universal MTG-bracket 300-7742-00 1

6. DCP case 335-5734-30 1

7. Outer escutcheon(*B-A) 370-6089-00 1

8. Outer escutcheon(*K-A/B) 370-6089-01 1

9. Extension lead 854-6349-50 1

10. Parts bag ----------10-1. Removal key 331-2497-00 2 10-2. Screw(M5x8) 716-0496-01 1 10-3. Pad screw(M1.7x6)(*B-A) 716-0872-11 1

*B-A: For DXZ945MP (PE-2635B-A) *K-A/B: For DXZ946MP (PE-2635K-A/B)

CAUTIONS

Use of controls, adjustment 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.

Bottom view

of DXZ945MP

To engineers in charge of repair or inspection of our products.

Before repair or inspection, make sure to follow the instructions so that customers and Engineers in

charge of repair or inspection can avoid suffering any risk or injury.

1. Use specified parts. The system uses parts with special safety features against fire and voltage. Use only parts with equivalent characteristics when replacing them. The use of unspecified parts shall be regarded as remodeling for which we shall not be liable. The onus of product liability (PL) shall not be our responsibility in cases where an accident or failure is as a result of unspecified parts being used.

2. Place the parts and wiring back in their original positions after replacement or re-wiring. For proper circuit construction, use of insulation tubes, bonding, gaps to PWB, etc, is involved. The wiring con-

DXZ945MP DXZ946MP

nection and routing to the PWB are specially planned using clamps to keep away from heated and high voltage parts. Ensure that they are placed back in their original positions after repair or inspection. If extended damage is caused due to negligence during repair, the legal responsibility shall be with the repairing company.

3. Check for safety after repair. Check that the screws, parts and wires are put back securely in their original position after repair. Ensure for safety reasons there is no possibility of secondary ploblems around the repaired spots. If extended damage is caused due to negligence of repair, the legal responsibility shall be with the repairing company.

4. Caution in removal and making wiring connection to the parts for the automobile. Disconnect the battery terminal after turning the ignition key off. If wrong wiring connections are made with the battery connected, a short circuit and/or fire may occur. If extensive damage is caused due to negligence of repair, the legal responsibility shall be with the repairing company.

5. Cautions regarding chips. Do not reuse removed chips even when no abnormality is observed in their appearance. Always replace them with new ones. (The chip parts include resistors, capacitors, diodes, transistors, etc). The negative pole of tantalum capacitors is highly susceptible to heat, so use special care when replacing them and check the operation afterwards.

6. Cautions in handling flexible PWB Before working with a soldering iron, make sure that the iron tip temperature is around 270 ply the iron tip repeatedly(more than three times)to the same patterns. Also take care not to apply the tip with force.

7. Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.

8. Cautions in checking that the optical pickup lights up. The laser is focused on the disc reflection surface through the lens of the optical pickup. When checking that the laser optical diode lights up, keep your eyes more than 30cms away from the lens. Prolonged viewing of the laser within 30cms may damage your eyesight.

9. Cautions in handling the optical pickup The laser diode of the optical pickup can be damaged by electrostatic charge caused by your clothes and body. Make sure to avoid electrostatic charges on your clothes or body, or discharge static electricity before handling the optical pickup.

9-1. Laser diode

The laser diode terminals are shorted for transportation in order to prevent electrostatic damage. After replacement, open the shorted circuit. When removing the pickup from the mechanism, short the terminals by soldering them to prevent this damage.

9-2. Actuator

The actuator has a powerful magnetic circuit. If a magnetic material is put close to it. Its characteristics will change. Ensure that no foreign substances enter through the ventilation slots in the cover.

9-3. Cleaning the lens

Dust on the optical lens affects performance. To clean the lens, apply a small amount of isopropyl alcohol to lens paper and wipe the lens gently.

. Take care not to ap-

- 2 -

ERROR DISPLAYS

ERROR 2 ERROR 3

ERROR 6

AMP GUARD

ERROR 2 ERROR 3

ERROR 6

ERROR 2 ERROR 3

ERROR 6

ERROR P ERROR R

A DISC is caught inside the CD deck and is not ejected. A DISC cannot be played due to scratches,etc.

A DISC is loaded upside-down inside the CD deck and does not play.

The speaker protection circuit is operating.During this operation, if any volume operation is performed, the display shows

"AMP GUARD". "AMP GUARD" sometimes functions when special test signals are used.

A DISC inside the CD changer is not loaded. A DISC inside the CD changer cannot be played due to scratches,

etc. A DISC inside the CD changer cannot be played because it is

loaded upside-down. A DISC inside the DVD changer cannot be played. A DISC cannot be played due to scratches,etc.

A DISC inside the DVD changer cannot be played because it is loaded upside-down.

Parental level error Region code error

This is a failure of CD deck's mechanism. Replace with a non-scratched,non-warped-disc.

Eject the disc then reload it properly.

This is a failure of CD changer's mechanism. Replace with a non-scratched, non-warped disc.

Eject the disc then reload it properly.

This is a failure of DVD mechanism. Retry or replace with a non-scratched, non-warped-disc.

Eject the disc then reload it properly.

Set the correct Parental level. Eject the disc and replace correct region code disc.

CD/MP3/WMAGeneral

DVD changer

CD changer

Cause

Measure

Error Display

Turn down sound volume. Function can also be restored by turning the power off and on again. (Speaker volume is reduced automatically when the speaker protection circuit operates).

*When an optional CD/DVD changer is connected through the CeNET cable, this unit can control CD/DVD changer operations. *If an error display other than the ones described above appears, press the reset button.

TROUBLESHOOTING

Problem

Power does not turn on. (No sound is produced.)

No sound output when operating the unit with amplifiers or power antenna attached.

General

Nothing happens when buttons are pressed. Display is not accurate.

No sound heard.

Sound skips or is noisy.

CD/MP3/WMA

Sound is cut or skipped. Noise is generated or noise is mixed with sound.

Sound is bad directly after power is turned on.

rong filename

CD/MP3/WMA

Play list play is not performed.

Fuse is blown. Incorrect wiring.

Power antenna lead is shorted to ground or excessive current is required for remote-on the amplifiers or power antenna.

The microprocessor has malfunctioned due to noise,etc.

DCP or main unit connectors are dirty.

There is a disc other than a compact disc or foreign matter already in place.

MP3/WMA files are absent in a disc. Files are not recognized as an

MP3/WMA file. File system is not correct.

Disc is dirty. Disc is heavily scratched or warped. MP3/WMA files are not encoded properly.

Water droplets may form on the internal lens when the car is parked in a humid place.

File system is not correct. File name or extension is not correct.

Cause

Replace with a fuse of the same amperage. Wire properly.

1. Turn the unit off.

2. Remove all wires attached to the power antenna lead. Check each wire for a possible short to ground using an ohm meter.

3. Turn the unit back on.

4. Reconnect each amplifier remote wire to the turn off before power antenna lead one by one. If the amplifiers all wires are attached, use an external relay to provide remote-on voltage(excessive current required).

Turn off the power , then press the [ RELEASE ] button and remove the DCP. Press the reset button with a thin rod.

- 3 -

Wipe the dirt off with a soft cloth moistened with cleaning alcohol.

With the slooping console open, press and hold the

for 3 seconds or longer.The foreign matter is forcibly ejected.

Write MP3/WMA files onto the disc properly. Use MP3/WMA files encoded properly.

Use ISO9660 level 1, 2 or JOLIET or Romeo file system. Clean the disc with a soft cloth. Replace with a disc with no scratches. Use MP3/WMA

Let dry for about 1 hour with the power on.

Use ISO9660 level 1, 2 or JOLIET or Romeo file system. Use alphanumeric/ASCII characters for MP3/WMA file name.

Use ".M3U" for the file extension of a play list.

Measure

files encoded properly.

Reset button

] button

[

DXZ945MP DXZ946MP

BLOCK DIAGRAM

Main section

RCA

Q451

FRONT

Q453

RCA

REAR

Q450

Q452

IC507

RCA NON

FADER

Q454

Q455

IC452

IC509

RCA

2-ZONE

Q456

Q457

IC451

IC508

IC101

SP OUT

T201

AUDIO

IC201

Q201

B/U

AUDIO

Q222,Q223

IC220

6V STB

ACC

MECH 8V

STB

Q226

IC221

DSP 3.3V

AMP

REM

Q231

Q230

BLINKING

LED

POWER

ANT

Q229

ILL

Q213

ILL DET

Q235

Q212

ILL SW

Q227

PHONE

INT

Q603

8V STB

Q711

DIMM

Q710

Q210

SLOPE

MOTOR

KEY ILL

LCD BACK LIGHT

IC230

MOTOR

DRIVER

IC401

IC501

ANT

BL1

IC1

IC301

IC604

MASTER

Q602

IC602

DET

VOL

IE-BUS

DRIVER

IC605

IC606

IE-BUS DRIVER

IC302

ISOLATION

Q201

STB

ACC 8V

Q701

Q703

IC705

CONTRAST

KEY

MATRIX

VR700

ROTARY

IR700

IC740

RECEIV.

IC700

DCP U-COM

TOUCH PANEL

Q700

IC702

U-COM

DXZ945MP DXZ946MP

Ce-NET

AUX IN

CD MECH

MODULE

- 4 -

MECH

DRIVER

DCP

IC701

(LCD DRIVER)

IC770

DISPLAY

CONTROLLER

IC762

CD mechanism section

MP3&WMA Encoded disc/CD-DA disc (CD-ROM ISO9660)

CD Mecha.

㵘㵘GS-1

P/U㵘CP-51

J2㵘10pin

J1㵘15pin

IC101 DRIVER

3.3V(I/O) 1.6V(Core)

3.3V

FAN8047G3

IC6

IC4

IC9

DSP

LOGIC

DRAM

TMS320DA140

SN74䌌䌖C139

K4S641632F-TC60

(CD-ROM I/F)

(1M x 16bit x 4B)

3.3V

(ECC)

IC7

Transistor

IC102

(MPEG audio decode)

LOGIC

5V㸢3.3V

CD㵘DSP

(WMA decode)

SN74䌌䌖74

TC94A15F

(CD-DA ESP)

(Digital servo)

IC2

(DF/DAC)

Regulator

3.3V㸢1.6V

3.3V

IC10

IC1

FLASH ROM

LOGIC

MBM29DL800BA (8Mbit)

AUDIO

D-OUT

IC3 LOGIC SN74HCT08

V-BUS

I/F-5V

ACC8V

J3 20pin

ACC5V

(TO MAIN UNIT)

DAC

SN74䌌䌖C139

SYSTEM CHECK

The first time that this unit is turned on after wire connections are completed, this unit checks which equipment is connected. (This is called the "system check.") When the power is turned ON, and "System Check" is displayed, follow the procedure below to perform the system check.

1. When "System Check" appears on the display, press the [ROTARY] knob. The system check starts. When the system check is complete,"Completed" appears on the display.

2. Press the [ROTARY] knob again. The main display for the radio mode appears.

CONNECTIONS

ANTENNA RECEPT.

(For radio antenna)

8MM

MAX

(For CD/DVD auto changer,TV)

16PIN SOCKET

(Power supply)

Ce NET

2-ZONE OUTPUT

(For wireless headphone)

GRN

AUX INPUT

RED

CODEMATIC

This function prevents persons who do not know the touch sequence from easily operating this unit. The Touch Code display appears when DCP is attached and the power is turned ON with "CODEMATIC" set to "ON".

If you touch the display in this screen in the preset order, "SUCCESSFUL" is displayed and the power is turned OFF. When the power is next turned ON, the Touch Code display does not appear, and the main display in the radio mode or CD mode is displayed.

RCA 4CH OUTPUT

(For power amp)

GRY

BLK

RCA 2CH OUTPUT

(For center SP)

PUR

EXTENSION LEAD

* For details of connections, see "PRINTED WIRING BOARD"(cf.page 31).

- 5 -

DXZ945MP DXZ946MP

CIRCUIT DIAGRAM

Main PWB(B1) section 1/6

FM/AM Tuner

To Main PWB 2/6 (page 25)

To Main PWB 5/6 (page 28)

2 2 2 2

5 5

To Main PWB 2/6 (page 25)

AM+B FM+B

To Main PWB 6/6 (page 29)

To Main PWB 2/6 (page 25)

6 6 6

Selector

To Main PWB 3/6 (page 26)

3 3

6 6 6

To Main PWB 6/6 (page 29)

To Main PWB 2/6 (page 25)

PLL

- 24 -

To Main PWB 2/6 (page 25)

2 2 2 2 2

To Main PWB 5/6 (page 28)

DXZ945MP DXZ946MP

SPE-ANA

2 2 2

To Main PWB 5/6 (page 28)

To Main PWB 2/6 (page 25)

To Main PWB 6/6 (page 29)

+ 11 hidden pages