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Clarion Co., Ltd.
Published by Service Dept.
50 Kamitoda, Toda-shi, Saitama 335-8511 Japan
298-6140-00 Dec.2003 P
Service Dept.: 5-66 Azuma , Kitamoto-shi, Saitama 364-0007 Japan
Tel: +81-48-541-2335 / 2432 FAX: +81-48-541-2703 Printed in Japan
Service Manual
AM/FM CD/MP3/WMA Player
Built-in DSP/EQ With Touchpanel
Model
(PE-2635B-A / For U.S.A.)
Model
(PE-2635K-A / For other countries)
(PE-2635K-B / For other countries)
SPECIFICATIONS
FM tuner section Bass control action: +/-12dB (50Hz)
Frequency range: 87.9MHz to 107.9MHz(U.S.A.) Treble control action: +/-12dB (12.5kHz)
87.0MHz to 108.0MHz(OTHERS)
Usable sensitivity: 9dBf General
50dB quieting sensitivity: 15dBf Power supply voltage: 14.4V DC(10.8V to 15.6V allow-
Alternate channel selectivity: able) negative ground
70dB Current consumption: Less than 15A,3A
Stereo separation: 35dB (1kHz) Speaker impedance: 4ohm(4ohm to 8ohm allowable)
Frequency response: 30Hz to 15kHz (+/-3dB) Dimensions(mm):
Source unit; 178(W)x50(H)x155(D)
AM tuner section Remote control unit; 32(W)x56(H)x24(D)
Frequency range: 530kHz to 1710kHz(U.S.A.) Weight:
531kHz to 1629kHz(OTHERS) Source unit; 1.7kg
Usable sensitivity: 25uV Remote control unit; 80g(including battery)
CD player section NOTES
System: Compact disc digital audio system
* Use only compact discs bearing the or mark.
Usable discs: Compact disc
Frequency response: 5Hz to 20kHz (+/-1dB) * Some CDs recorded in CD-R/CD-RW mode may not be
S/N ratio: 100dB (1kHz) usable.
Dynamic range: 96dB (1kHz) * WMA is the abbreviation of Windows Media Audio, an
Distortion: 0.01% audio file format developed by Microsoft Corporation.
* , and the Windows logo are trade-
MP3/WMA mode marks, or registerd trademarks of Microsoft Corporation
MP3 sampling rate: 11.025kHz to 48kHz in the United States and/or other countries.
MP3 bit rate: 8kbps to 320kbps/VBR * This product includes technology owned by Microsoft Cor-
WMA bit rate: 48kbps to 192kbps
poration and cannot be used or distributed without a li-
Logical format: ISO9660 level1,2
cense from MSLGP.
JOLIET or Romeo
* This product is manufactured under license from Dolby
Laboratories."Dolby","Pro Logic" and the double-D sym-
Audio section
bol are trademarks of Dolby Laboratories.
Maximum power output: 53Wx4
* We cannot supply PWB with component parts in principle.
Continous average power output:
When a circuit on PWB has failure, please repair it by
18Wx4, into 4ohm, 20Hz to 20kHz,
1%THD component parts base. Parts which are not mentioned in
Line output level: 4V/F 2ch+4V/R 2ch (CD 1kHz) service manual are not supplied.
4V/NON-FADER 2ch (CD 1kHz) * Specifications and design are subject to change without
0.5V/2-ZONE 2ch (CD 1kHz) notice for further improvement.
DXZ945MP
-1-
DXZ946MP
COMPONENTS
nection and routing to the PWB are specially planned using
PE-2635B-A,PE-2635K-A,PE-2635K-B
clamps to keep away from heated and high voltage parts.
1. Main unit ----------- 1
Ensure that they are placed back in their original positions
2. Rmote controller RCB-164-600 1
after repair or inspection.
3. Battery(SUM-3) ----------- 2
If extended damage is caused due to negligence during
4. Mounting bracket 300-4976-00 1
repair, the legal responsibility shall be with the repairing
5. Universal MTG-bracket 300-7742-00 1
company.
6. DCP case 335-5734-30 1
3. Check for safety after repair.
7. Outer escutcheon(*B-A) 370-6089-00 1
Check that the screws, parts and wires are put back se-
8. Outer escutcheon(*K-A/B) 370-6089-01 1
curely in their original position after repair. Ensure for safety
9. Extension lead 854-6349-50 1
reasons there is no possibility of secondary ploblems
10. Parts bag -----------
around the repaired spots.
10-1. Removal key 331-2497-00 2
If extended damage is caused due to negligence of repair,
10-2. Screw(M5x8) 716-0496-01 1
the legal responsibility shall be with the repairing company.
10-3. Pad screw(M1.7x6)(*B-A) 716-0872-11 1
4. Caution in removal and making wiring connection to the
*B-A: For DXZ945MP (PE-2635B-A) parts for the automobile.
*K-A/B: For DXZ946MP (PE-2635K-A/B) 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
CAUTIONS extensive damage is caused due to negligence of repair,
Use of controls, adjustment or performance of procedures the legal responsibility shall be with the repairing company.
other than those specified herein, may result in hazardous 5. Cautions regarding chips.
radiation exposure. Do not reuse removed chips even when no abnormality is
The COMPACT DISC player should not be adjusted or re- observed in their appearance. Always replace them with
paired by anyone except properly qualified service person- new ones. (The chip parts include resistors, capacitors,
nel. 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 . Take care not to ap-
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 replace-
ment. Recheck all work before you apply power to the unit.
8. Cautions in checking that the optical pickup lights up.
Bottom view The laser is focused on the disc reflection surface through
of DXZ945MP
the lens of the optical pickup. When checking that the la-
ser 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
To engineers in charge of repair or The laser diode of the optical pickup can be damaged by
inspection of our products. electrostatic charge caused by your clothes and body. Make
sure to avoid electrostatic charges on your clothes or body,
Before repair or inspection, make sure to follow the
or discharge static electricity before handling the optical
instructions so that customers and Engineers in pickup.
charge of repair or inspection can avoid suffering 9-1. Laser diode
any risk or injury. The laser diode terminals are shorted for transporta-
1. Use specified parts. tion in order to prevent electrostatic damage. After
The system uses parts with special safety features against replacement, open the shorted circuit. When remov-
fire and voltage. Use only parts with equivalent character- ing the pickup from the mechanism, short the termi-
istics when replacing them. nals by soldering them to prevent this damage.
The use of unspecified parts shall be regarded as remod- 9-2. Actuator
eling for which we shall not be liable. The onus of product The actuator has a powerful magnetic circuit. If a
liability (PL) shall not be our responsibility in cases where magnetic material is put close to it. Its characteris-
an accident or failure is as a result of unspecified parts tics will change. Ensure that no foreign substances
being used. enter through the ventilation slots in the cover.
2. Place the parts and wiring back in their original positions 9-3. Cleaning the lens
after replacement or re-wiring. Dust on the optical lens affects performance. To
For proper circuit construction, use of insulation tubes, clean the lens, apply a small amount of isopropyl
bonding, gaps to PWB, etc, is involved. The wiring con- alcohol to lens paper and wipe the lens gently.
DXZ945MP
-2-
DXZ946MP
ERROR DISPLAYS
Error Display Cause Measure
CD/MP3/WMA ERROR 2 A DISC is caught inside the CD deck and is not ejected. This is a failure of CD deck's mechanism.
ERROR 3 A DISC cannot be played due to scratches,etc. Replace with a non-scratched,non-warped-disc.
ERROR 6 A DISC is loaded upside-down inside the CD deck and does not Eject the disc then reload it properly.
play.
AMP GUARD The speaker protection circuit is operating.During this operation, Turn down sound volume. Function can also be restored by
General
if any volume operation is performed, the display shows turning the power off and on again.
"AMP GUARD". (Speaker volume is reduced automatically when the speaker
"AMP GUARD" sometimes functions when special test signals are protection circuit operates).
used.
ERROR 2 A DISC inside the CD changer is not loaded. This is a failure of CD changer's mechanism.
CD changer
ERROR 3 A DISC inside the CD changer cannot be played due to scratches, Replace with a non-scratched, non-warped disc.
etc.
ERROR 6 A DISC inside the CD changer cannot be played because it is Eject the disc then reload it properly.
loaded upside-down.
ERROR 2 A DISC inside the DVD changer cannot be played. This is a failure of DVD mechanism.
ERROR 3 A DISC cannot be played due to scratches,etc. Retry or replace with a non-scratched, non-warped-disc.
DVD changer
ERROR 6 A DISC inside the DVD changer cannot be played because it is Eject the disc then reload it properly.
loaded upside-down.
ERROR P Parental level error Set the correct Parental level.
ERROR R Region code error Eject the disc and replace correct region code disc.
*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 Cause Measure
Power does not turn on. Fuse is blown. Replace with a fuse of the same amperage.
(No sound is produced.)
Incorrect wiring. Wire properly.
No sound output when operating Power antenna lead is shorted to 1. Turn the unit off.
the unit with amplifiers or power ground or excessive current is required 2. Remove all wires attached to the power antenna lead. Check
antenna attached. for remote-on the amplifiers or power each wire for a possible short to ground using an ohm meter.
antenna. 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
General
all wires are attached, use an external relay to provide
remote-on voltage(excessive current required).
Nothing happens when buttons The microprocessor has malfunctioned Turn of f the power , then Reset button
are pressed. due to noise,etc. press the [ RELEASE ]
Display is not accurate. button and remove the DCP.
Press the reset button with
a thin rod.
DCP or main unit connectors are dirty. Wipe the dirt off with a soft cloth moistened with cleaning alcohol.
No sound heard. There is a disc other than a compact With the slooping console open, press and hold the [ ] button
disc or foreign matter already in place. for 3 seconds or longer.The foreign matter is forcibly ejected.
MP3/WMA files are absent in a disc. Write MP3/WMA files onto the disc properly.
Files are not recognized as an Use MP3/WMA files encoded properly.
CD/MP3/WMA
MP3/WMA file.
File system is not correct. Use ISO9660 level 1, 2 or JOLIET or Romeo file system.
Sound skips or is noisy. Disc is dirty. Clean the disc with a soft cloth.
Disc is heavily scratched or warped. Replace with a disc with no scratches.
Sound is cut or skipped. MP3/WMA files are not encoded properly. Use MP3/WMA files encoded properly.
Noise is generated or noise is
mixed with sound.
Sound is bad directly after power Water droplets may form on the Let dry for about 1 hour with the power on.
CD/MP3/WMA
is turned on. internal lens when the car is parked in a
humid place.
Wrong filename File system is not correct. Use ISO9660 level 1, 2 or JOLIET or Romeo file system.
Play list play is not performed. File name or extension is not correct. Use alphanumeric/ASCII characters for MP3/WMA file name.
Use ".M3U" for the file extension of a play list.
DXZ945MP
-3-
DXZ946MP
IC401 RCA
ANT IC501 Q451
Q453 FRONT
BL1
Q450
DXZ946MP
DXZ945MP
IC507 RCA
Q452 REAR
Q9 Q7 Q6
Main section
IC452
Q454 RCA NON
IC509 Q455 FADER
IC1
IC451 Q456 RCA
IC508
BLOCK DIAGRAM
Q457 2-ZONE
IC301 IC101
Ce-NET IC604 SP OUT
MASTER
Q602 AUDIO
IC602 T201
IC201
Q201
IE-BUS B/U
DRIVER VOL
DET
Q222,Q223
IC606 IC605 IC220 AUDIO
6V STB
ACC
IC302
AUX IN
ISOLATION IE-BUS DRIVER Q226 MECH 8V
IC221 STB
DSP 3.3V
CD MECH
-4-
MODULE Q231 AMP
Q230 REM
LED
Q229 POWER
BLINKING
CD ANT
MECH
Q201
Q213
DRIVER ACC 8V Q235 ILL DET ILL
STB
Q212
DCP ILL SW
IC705 Q227
CONTRAST Q710 Q711 8V STB Q603
IC701 PHONE
Q703 Q701 DIMM INT
KEY SW Q210
MATRIX
(LCD DRIVER)
VR700
ROTARY
IR700
IC770 IC740
DISPLAY IC700 IR
KEY ILL
IC762 TOUCH PANEL DCP U-COM RECEIV.
CONTROLLER U-COM
IC230
LCD BACK LIGHT
Q700
IC702
SLOPE
MOTOR
MOTOR
DRIVER
CD mechanism section
MP3&WMA Encoded disc/CD-DA disc
(CD-ROM ISO9660)
CD Mecha. 3.3V(I/O) 1.6V(Core) 3.3V
GS-1 IC4 IC9
P/U CP-51
LOGIC
DRAM
J2 10pin J1 15pin IC6 SN74 C139
K4S641632F-TC60
DSP
(1M x 16bit x 4B)
TMS320DA140 IC7
IC101 (CD-ROM I/F) LOGIC
DRIVER (ECC) SN74 74
FAN8047G3 (MPEG audio decode)
(WMA decode)
3.3V (CD-DA ESP)
Q1 3.3V
IC102
Transistor IC1
CD DSP IC10
5V 3.3V LOGIC
TC94A15F DAC FLASH ROM
SN74 C139
(Digital servo) MBM29DL800BA
(DF/DAC) (8Mbit)
IC2
Regulator
3.3V 1.6V
IC3
LOGIC
SN74HCT08
AUDIO
D-OUT
V-BUS
I/F-5V
ACC8V
J3 20pin (TO MAIN UNIT)
ACC5V
SYSTEM CHECK CODEMATIC
The first time that this unit is turned on after wire connec- This function prevents persons who do not know the touch
tions are completed, this unit checks which equipment is sequence from easily operating this unit. The Touch Code
connected. (This is called the "system check.") When the display appears when DCP is attached and the power is
power is turned ON, and "System Check" is displayed, fol- turned ON with "CODEMATIC" set to "ON".
low 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" ap- If you touch the display in this screen in the preset order,
pears on the display. "SUCCESSFUL" is displayed and the power is turned OFF.
2. Press the [ROTARY] knob again. When the power is next turned ON, the Touch Code display
The main display for the radio mode appears. does not appear, and the main display in the radio mode or
CD mode is displayed.
CONNECTIONS
2-ZONE OUTPUT RCA 4CH OUTPUT EXTENSION LEAD
16PIN SOCKET (For wireless headphone) (For power amp) 1
(Power supply)
GRN GRY
BLK
AUX INPUT
8 MM
MA X
RED
RCA 2CH OUTPUT
(For center SP)
PUR
ANTENNA RECEPT. Ce NET
(For radio antenna) (For CD/DVD auto changer,TV)
* For details of connections, see "PRINTED
WIRING BOARD"(cf.page 31).
DXZ945MP
-5-
DXZ946MP
CIRCUIT DIAGRAM
Main PWB(B1) section 1/6
To Main PWB 5/6
(page 28)
To Main PWB 2/6 5
(page 25) 5
FM/AM Tuner
2
2 5
2 5
2
Selector
5
5
5
6
6
6
To Main PWB 6/6
(page 29)
To Main PWB 2/6
(page 25)
2
2
To Main PWB 2/6 2
(page 25)
2
2
AM+B FM+B
2
To Main PWB 2/6
To Main PWB 3/6 (page 25)
To Main PWB 6/6 (page 26)
(page 29)
3
6 3
6
6
To Main PWB 5/6
(page 28)
5
PLL
To Main PWB 2/6
(page 25)
2
SPE-ANA 2
2
6
To Main PWB 6/6
To Main PWB 2/6 (page 29)
(page 25)
2
2
2
2
2
5
To Main PWB 5/6
(page 28)
DXZ945MP
- 24 - DXZ946MP
Main PWB(B1) section 2/6 To Main PWB 6/6
(page 29)
Inner escutcheon FPC(B4) section
6
To Main PWB 1/6
(page 24)
1
1 13P DIN
IE-BUS Driver (Ce NET)
1
1
1 To Main PWB 5/6
(page 28)
1
5
To Main PWB 6/6
(page 24)
1
1
To Main PWB 3/6 1
(page 26) 1
3
To Main PWB 5/6
3 (page 28)
3 5
3 PHONE-INT 5
3
To Main PWB 6/6
3 (page 29)
6
6
To J3 of CD PWB To Main PWB 5/6
A (page 35) (page 28)
5
5
5
5
5
5
5
5
ILL-DET 5
Master Micro Computer 1
1
M30622MEP-126GP 1
To Main PWB 1/6 (page 24)
To Main PWB 4/6 (page 27)
4
4
1
1
1
1
1
To Main PWB 1/6 (page 24)
To Main PWB 6/6
(page 29) 5
6 B/U ACC-DET 5
6 To Main PWB 5/6 (page 28)
6 6
6 Reset 6
B To J701 of SW PWB 6
(page 32) For USA
(PE2635BA) 6
For Others R688 10K 6
BLINKING-LED
(PE2635KA,KB)
6
DISC-IND
6
6
6
To Main PWB 6/6
(page 29)
SOCKET J800
INNER ES FPC(B4)
6
6
To Main PWB 6/6
(page 29)
DXZ945MP
- 25 - DXZ946MP
Main PWB(B1) section 3/6
To Main PWB 2/6(page 25)
2
2
To Main PWB 1/6(page 24)
1
To Main PWB 2/6(page 25)
2 1
2
2
2
ADC/DSP/DAC
To Main PWB 6/6(page 29)
6
To Main PWB 4/6(page 27)
6 4
4
4
4
4
4
4
4
4
4
4
4
To Main PWB 5/6(page 28)
5
DXZ945MP
- 26 - DXZ946MP
Main PWB(B1) section 4/6
To Main PWB 3/6
(page 26)
3
3
To Main PWB 5/6
(page 28)
5
To Main PWB 3/6
(page 26) 5
3
3
3
3
5
5
E-VOL
5
5
5
To Main PWB 3/6
(page 26)
3
3
3
3
To Main PWB 3/6
(page 26)
3
3
To Main PWB 6/6
(page 29)
6
6
To Main PWB 2/6
(page 25)
2
2
DXZ945MP
- 27 - DXZ946MP
Main PWB(B1) section 5/6
To Main PWB 4/6(page 27)
4 NON FADER
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