PIONEER DEH-1850/XU/ES Service Manual

PIONEER DEH-1850/XU/ES Service Manual
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Service Manual for PIONEER DEH-1850/XU/ES, downloadable as a PDF file.

We also have owner's manual to this model.

Manual details

Immediate download after payment.
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The manual has 62 pages
File size: 3.81 MB
Available language versions: English
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Sample pages

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

DEH-1850/XN/ES

CRT3552

HIGH POWER CD PLAYER WITH FM/AM TUNER

DEH-1850

/XN/ES

This service manual should be used together with the following manual(s):

Model No.

Order No.

Mech. Module

Remarks

CX-3166

CRT3582

S10.5STD

CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly

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

K-ZZA. NOV. 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

DEH-1850/XN/ES

CRT3552

HIGH POWER CD PLAYER WITH FM/AM TUNER

DEH-1850

/XN/ES

This service manual should be used together with the following manual(s):

Model No.

Order No.

Mech. Module

Remarks

CX-3166

CRT3582

S10.5STD

CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly

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

K-ZZA. NOV. 2005 Printed in Japan

DEH-1850/XN/ES

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.

- 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 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.

DEH-1850/XN/ES

[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.

DEH-1850/XN/ES

CONTENTS

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

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

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

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

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

2.3 CD MECHANISM MODULE..................................................................................................................... 10

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

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

3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE).............................................................................. 14

3.3 KEYBOARD UNIT.................................................................................................................................... 20

3.4 CD MECHANISM MODULE..................................................................................................................... 22

4. PCB CONNECTION DIAGRAM ..................................................................................................................... 26

4.1 TUNER AMP UNIT................................................................................................................................... 26

4.2 KEYBOARD UNIT.................................................................................................................................... 30

4.3 CD CORE UNIT(S10.5) ........................................................................................................................... 32

5. ELECTRICAL PARTS LIST ............................................................................................................................ 34

6. ADJUSTMENT ............................................................................................................................................... 38

6.1 CD ADJUSTMENT................................................................................................................................... 38

6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT .................................................... 40

6.3 ERROR MODE ........................................................................................................................................ 42

6.4 SYSTEM MICROCOMPUTER TEST PROGRAM ................................................................................... 43

7. GENERAL INFORMATION ............................................................................................................................. 44

7.1 DIAGNOSIS ............................................................................................................................................. 44

7.1.1 DISASSEMBLY ..................................................................................................................................... 44

7.1.2 CONNECTOR FUNCTION DESCRIPTION .......................................................................................... 47

7.2 PARTS...................................................................................................................................................... 48

7.2.1 IC .......................................................................................................................................................... 48

7.2.2 DISPLAY ............................................................................................................................................... 56

7.3 OPERATIONAL FLOW CHART ............................................................................................................... 57

8. OPERATIONS ................................................................................................................................................ 58