PIONEER AVH-P7950DVD/CN5 Service Manual

PIONEER AVH-P7950DVD/CN5 Service Manual
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Service Manual for PIONEER AVH-P7950DVD/CN5, downloadable as a PDF file.

We also have owner's manual to this model.

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The manual has 258 pages
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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 2007

AVH-P7950DVD/RC

CRT3942

DVD AV RECEIVER

AVH-P7950DVD

/RC

AVH-P7950DVD/RD

AVH-P7950DVD/RI

AVH-P7950DVD/CN5

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

Model No.

Order No.

Mech.Module

Remarks

CX-3212

CRT3896

MS5

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

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

K-ZZW. APR. 2007 Printed in Japan

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

"DTS" and "DTS-ES | Neo:6" are registered trademarks of DTS, Inc. "96/24" is a trade-

mark of DTS, Inc.

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 2007

AVH-P7950DVD/RC

CRT3942

DVD AV RECEIVER

AVH-P7950DVD

/RC

AVH-P7950DVD/RD

AVH-P7950DVD/RI

AVH-P7950DVD/CN5

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

Model No.

Order No.

Mech.Module

Remarks

CX-3212

CRT3896

MS5

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

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

K-ZZW. APR. 2007 Printed in Japan

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

"DTS" and "DTS-ES | Neo:6" are registered trademarks of DTS, Inc. "96/24" is a trade-

mark of DTS, Inc.

AVH-P7950DVD/RC

SAFETY INFORMATION

1. Safety Precautions for those who Service this Unit.

· Follow the adjustment steps in the service manual when servicing this unit. When check -

ing or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable results.

Caution:

1. During repair or tests, minimum distance of 13cm from the focus lens must be kept.

2. During repair or tests, do not view laser beam for 10 seconds or longer.

CAUTION

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.

and refer the repair to a qualified service technician.

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

2. The trianglar label is attached to the mechanism unit frame.

On the top of the player.

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

Wave length:

DVD:660 nm to 670 nm

CD:780 nm to 800 nm

DVD : 1.27 mW(Emitting period :9 sec.)

CD : 6.26 mW(Emitting period : unlimited)

Maximum output:

AVH-P7950DVD/RC

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.

Additional Laser Caution

Transistors Q1103 and Q1104 in PCB drive the laser diodes for DVD and CD

respectively. When Q1103 or Q1104 is shorted between their terminals,

the laser diodes for DVD or CD 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.

AVH-P7950DVD/RC

[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.

AVH-P7950DVD/RC

CONTENTS

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

1. SERVICE PRECAUTIONS ................................................................................................................................6

2. SPECIFICATIONS .............................................................................................................................................9

2.1 SPECIFICATIONS ......................................................................................................................................9

2.2 DISC/CONTENT FORMAT .......................................................................................................................11

2.3 PANEL FACILITIES...................................................................................................................................12

2.4 CONNECTION DIAGRAM ........................................................................................................................18

3. BASIC ITEMS FOR SERVICE ........................................................................................................................21

3.1 CHECK POINTS AFTER SERVICING .....................................................................................................21

3.2 PCB LOCATIONS .....................................................................................................................................22

3.3 JIG CONNECTION DIAGRAM .................................................................................................................24

4. BLOCK DIAGRAM ..........................................................................................................................................26

4.1 OVERALL CONNECTION DIAGRAM ......................................................................................................26

4.2 BLOCK DIAGRAM ....................................................................................................................................28

5. DIAGNOSIS ....................................................................................................................................................40

5.1 OPERATIONAL FLOWCHART .................................................................................................................40

5.2 DIAGNOSIS FLOWCHART ......................................................................................................................41

5.3 ERROR CODE LIST.................................................................................................................................63

5.4 CONNECTOR FUNCTION DESCRIPTION .............................................................................................64

5.5 DISPLAY ...................................................................................................................................................65

6. SERVICE MODE .............................................................................................................................................66

6.1 H/U INDEPENDENT OPERATION ...........................................................................................................66

6.2 MECHANISM TESTMODE .......................................................................................................................67

7. DISASSEMBLY ...............................................................................................................................................70

8. EACH SETTING AND ADJUSTMENT ............................................................................................................78

8.1 DVD ADJUSTMENT .................................................................................................................................78

8.2 VIDEO LEVEL ADJUSTMENT .................................................................................................................83

8.3 MONITOR ADJUSTMENT........................................................................................................................87

8.4 DC-DC CONVERTER ADJUSTMENT .....................................................................................................98

8.5 TOUCH PANEL ADJUSTMENT..............................................................................................................100

8.6 PCL OUTPUT CONFIRMATION.............................................................................................................108

9. EXPLODED VIEWS AND PARTS LIST.........................................................................................................110

9.1 PACKING ................................................................................................................................................110

9.2 EXTERIOR(1) .........................................................................................................................................112

9.3 EXTERIOR(2) .........................................................................................................................................114

9.4 EXTERIOR(3) .........................................................................................................................................118

9.5 TUNER SELECTOR ASSY.....................................................................................................................122

9.6 ACCESSORY AND POWER SUPPLY UNIT ..........................................................................................124

9.7 DVD MECHANISM MODULE .................................................................................................................126

10. SCHEMATIC DIAGRAM ..............................................................................................................................128

10.1 DVD MOTHER UNIT(SYSTEM)(GUIDE PAGE) ...................................................................................128

10.2 DVD MOTHER UNIT(DSP)(GUIDE PAGE) ..........................................................................................134

10.3 KEYBOARD UNIT(GUIDE PAGE) ........................................................................................................140

10.4 SUB KEYBOARD UNIT ........................................................................................................................146

10.5 DVD CORE UNIT(1/2)(GUIDE PAGE) ..................................................................................................148

10.6 DVD CORE UNIT(2/2) ..........................................................................................................................154

10.7 COMPOUND UNIT(A), COMPOUND UNIT(B).....................................................................................158

10.8 MONITOR UNIT(MONITOR)(GUIDE PAGE) ........................................................................................160

10.9 MONITOR UNIT(GDC)(GUIDE PAGE) .................................................................................................166

10.10 DRIVE UNIT .......................................................................................................................................172

10.11 POWER SUPPLY UNIT(GUIDE PAGE) ..............................................................................................174

10.12 AMP UNIT(GUIDE PAGE) ..................................................................................................................180

10.13 TUNER SELECTOR UNIT(SELECTOR)(GUIDE PAGE) ....................................................................186

10.14 TUNER SELECTOR UNIT(TUNER)(GUIDE PAGE)...........................................................................192

11. PCB CONNECTION DIAGRAM ..................................................................................................................198

11.1 DVD MOTHER UNIT.............................................................................................................................198

11.2 KEYBOARD UNIT ................................................................................................................................202

11.3 SUB KEYBOARD UNIT ........................................................................................................................203

11.4 DVD CORE UNIT..................................................................................................................................204

11.5 COMPOUND UNIT(A), COMPOUND UNIT(B).....................................................................................208

11.6 DRIVE UNIT .........................................................................................................................................209

11.7 MONITOR UNIT ...................................................................................................................................210

11.8 POWER SUPPLY UNIT ........................................................................................................................214

11.9 AMP UNIT.............................................................................................................................................216

11.10 TUNER SELECTOR UNIT ..................................................................................................................220

12. ELECTRICAL PARTS LIST .........................................................................................................................224