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ORDER NO.
CRT3904
DEH-P85BT/XN/EW5

CD RDS RECEIVER

DEH-P85BT /XN/EW5

This service manual should be used together with the following manual(s):
Model No. Order No. Mech.Module Remarks

CX-3195 CRT3815 S10.5COMP2 CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly

For details, refer to "Important Check Points for Good Servicing".

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 2007
K-ZZA. MAR. 2007 Printed in Japan
1 2 3 4

SAFETY INFORMATION
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.
A
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.

- Safety Precautions for those who Service this Unit.
When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable
B results.

Caution:
1. During repair or tests, minimum distance of 13 cm from the focus lens must be kept.
2. During repair or tests, do not view laser beam for 10 seconds or longer.

CAUTION:
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

C

CLASS 1
D
LASER PRODUCT

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.
E A specially instructed person should do servicing operation of the apparatus.

Laser diode characteristics
Wave length : 785 nm to 814 nm
Maximum output : 1 190 W(Emitting period : unlimited)

Additional Laser Caution

F
Transistors Q101 in PCB drive the laser diodes.
When Q101 is shorted between their terminals, the laser diodes will radiate beam.
If the top cover is removed with no disc loaded while such short-circuit is continued,
the naked eyes may be exposed to the laser beam.

DEH-P85BT/XN/EW5
2
1 2 3 4
5 6 7 8

A
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replaced only with the same or equivalent type recommended by the manufacture.
Discord used batteries according to the manufacture's instructions.

- Service Precaution
1. You should conform to the regulations governing
the product (safety, radio and noise, and other
regulations), and should keep the safety during B
servicing by following the safety instructions
described in this manual.
2. Before disassembling the unit, be sure to turn off
the power. Unplugging and plugging the connectors
during power-on mode may damage the ICs inside
the unit.
3. To protect the pickup unit from electrostatic discharge
during servicing, take an appropriate treatment
(shorting-solder) by referring to "the DISASSEMBLY".
4. After replacing the pickup unit, be sure to check the
grating.
5. Be careful in handling ICs. Some ICs such as MOS C

type are so fragile that they can be damaged by
electrostatic induction.
6. When diagnosing a product, take care of its heated
portion.
Holder (CND3133)
Bluetooth Unit

D

E

F

DEH-P85BT/XN/EW5
7
3
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1 2 3 4

[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.
A
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.

B 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.
C 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.
D a 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.

3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance.
Make sure the proper amount is applied.
E

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.

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.

F

DEH-P85BT/XN/EW5
4
1 2 3 4
5 6 7 8

CONTENTS
SAFETY INFORMATION .....................................................................................................................................2
1. SPECIFICATIONS.............................................................................................................................................6
2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................8 A
2.1 PACKING....................................................................................................................................................8
2.2 EXTERIOR(1) ...........................................................................................................................................10
2.3 EXTERIOR(2) ...........................................................................................................................................12
2.4 CD MECHANISM MODULE .....................................................................................................................14
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..........................................................................................16
3.1 BLOCK DIAGRAM....................................................................................................................................16
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)..............................................................................20
3.3 KEYBOARD UNIT ....................................................................................................................................26
3.4 CD MECHANISM MODULE(GUIDE PAGE).............................................................................................28
3.5 BLUETOOTH UNIT, ANTENNA UNIT ......................................................................................................36
4. PCB CONNECTION DIAGRAM......................................................................................................................38
4.1 TUNER AMP UNIT ...................................................................................................................................38 B
4.2 KEYBOARD UNIT ....................................................................................................................................42
4.3 CD CORE UNIT(S10.5COMP2) ...............................................................................................................44
4.4 BLUETOOTH UNIT ..................................................................................................................................46
4.5 ANTENNA UNIT .......................................................................................................................................48
4.6 SWITCH UNIT ..........................................................................................................................................49
5. ELECTRICAL PARTS LIST.............................................................................................................................50
6. ADJUSTMENT ................................................................................................................................................59
6.1 CD ADJUSTMENT ...................................................................................................................................59
6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT ....................................................61
6.3 ERROR MODE .........................................................................................................................................63
6.4 TEST MODE (iPod) ..................................................................................................................................64
C
6.5 TEST MODE (USB) ..................................................................................................................................65
6.6 SYSTEM MICROCOMPUTER TEST PROGRAM....................................................................................66
6.7 TEST MODE (Bluetooth) ..........................................................................................................................67
7. GENERAL INFORMATION .............................................................................................................................72
7.1 DIAGNOSIS..............................................................................................................................................72
7.1.1 DISASSEMBLY......................................................................................................................................72
7.1.2 CONNECTOR FUNCTION DESCRIPTION ..........................................................................................77
7.2 IC ..............................................................................................................................................................78
7.3 OPERATIONAL FLOW CHART................................................................................................................90
8. OPERATIONS .................................................................................................................................................91

D

E

F

DEH-P85BT/XN/EW5
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5
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1. SPECIFICATIONS

A

B

C

D

E

F

DEH-P85BT/XN/EW5
6
1 2 3 4
5 6 7 8

A

B

C

D

E

F

DEH-P85BT/XN/EW5
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7
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2. EXPLODED VIEWS AND PARTS LIST
NOTES : Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List.
The > mark found on some component parts indicates the importance of the safety factor of the part.
A
Therefore, when replacing, be sure to use parts of identical designation.
"
"
Screw adjacent to mark on the product are used for disassembly.
For the applying amount of lubricants or glue, follow the instructions in this manual.
(In the case of no amount instructions,apply as you think it appropriate.)
2.1 PACKING

30
23

B
1
29
27 24 16
25
26 28 2

9 13
10 17
12 5
10
C 5 4
11 6
12 8 5
7 14
14 15

3 20

19

D
31
18

22

20
E
21

19

F

DEH-P85BT/XN/EW5
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PACKING SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.

1 Cord Assy CDE8147
2 Cord Assy CDP1008 21 Protector CHP2812
A
* 3 Accessory Assy CEA7537 22 Protector CHP3184
4 Cord Clamper Assy CEA4636 23 Microphone Assy CPM1064
* 5 Clamper CNV8262 24 Clip Holder CZN5471
25 Microphone Holder CZN5472
* 6 Polyethylene Bag E36-615
7 Screw Assy CEA5322 26 Cushion CZN5473
8 Screw CBA1650 * 27 Microphone CZX5059
* 9 Polyethylene Bag CEG-127 28 Remote Control Unit CXC7555
10 Screw CRZ50P090FTC 29 Case Assy XXA7417
30-1 Owner's Manual CRB2352
11 Screw JPZ20P060FTB B
12 Screw TRZ50P080FTC 30-2 Owner's Manual CRD4201
* 13 Polyethylene Bag CEG1160 30-3 Owner's Manual CRD4202
14 Handle CND3707 30-4 Owner's Manual CRD4203
15 Bush CNV3930 30-5 Installation Manual CRD4208
* 30-6 Caution Card CRP1335
16 Sub Unit Box CHG5195
17 Unit Box CHG6113 * 30-7 Warranty Card CRY1157
18 Contain Box CHL6113 30-8 Polyethylene Bag CEG1116
19 Protector CHP2797 31 Polyethylene Bag CEG1227
20 Protector CHP2798
C

Owner's Manual,Installation Manual
Part No. Language

CRB2352 Russian

CRD4201 English, Spanish

CRD4202 German, French

CRD4203 Italian, Dutch

CRD4208 English, Spanish, German, French, Italian, Dutch, Russian
D

E

F

DEH-P85BT/XN/EW5
7
9
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2.2 EXTERIOR(1)

31 1 2
A
32
2
3
2

7
6

5
7
4
B

6 12
15
12
12

18
29 B 12

16 17
25 20
C

28 21
22
19
27 13
30
26
14
11

D

9

8

E

10

F

DEH-P85BT/XN/EW5
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EXTERIOR(1) SECTION PARTS LIST
Mark No. Description Part No.
1 Cord Assy CDE8147
2 Cap CNV6727 A
3 Cord Assy CDP1008
> 4 Fuse(10 A) CEK1136
5 Cap CKX-003

6 Cap CNS1472
7 Resistor RS1/2PMF102J
8 Case CNB3447
9 Holder CND3598
10 Panel CNS8913

11 Detach Grille Assy CXC7494 B
12 Screw BPZ20P080FTB
13 Button(LIST/ATT/EQ/DISP/TA) CAI1469
14 Button(EJECT) CAI1155
15 Cover CNS8491

16 Lighting Conductor CNV9509
17 Connector(CN1961) CKS5545
18 Connector(CN1801) CKS5662
19 Holder CND3781
20 Double Sided Tape CNM8673
C

21 Holder CNV9435
22 OEL Unit MXS8260
23