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ORDER NO.
CRT4276
AVH-P4150DVD/XN/RC

DVD AV RECEIVER

AVH-P4150DVD /XN/RC

AVH-P4150DVD/XN/RD
AVH-P4150DVD/XN/RI
AVH-P4150DVD/XNCN5
This service manual should be used together with the following manual(s):
Model No. Order No. Mech.Module Remarks

CX-3250 CRT4300 LS1 DVD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly

DTS and DTS Digital Out are registered trademartks and the DTS logos and Symbol are
trademarks of DTS, Inc.
Manufactured under license from Dolby Laboratories. Dolby, Pro Logic, and the double-D
symbol are trademarks of Dolby Laboratories.

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 2009
K-ZZZ. JAN. 2009 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 safety 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 safety, you should not risk trying to do so
and refer the repair to a qualified service technician.

Where in a manufacturer's service documentation, for example in circuit diagrams or lists
of components, a symbol is used to indicate that a specific component shall be replaced only
by the component specified in that documentation for safety reasons, the following symbol shall
be used:

B
- 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
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

CAUTION
CLASS 1M INVISIBLE LASER RADIATION WHEN OPEN. DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS

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.

D

Laser diode characteristics
Wave length:
DVD:660 nm to 670 nm
CD:780 nm to 800 nm
Focus lens on Maximum output:
CD:6.26 mW(Emitting period :9 sec.)
DVD:1.27 mW (Emitting period : unlimited)

Additional Laser Caution
E
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.

CAUTION
F
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.

AVH-P4150DVD/XN/RC
2
1 2 3 4
5 6 7 8

[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.

3 Make sure the soldering of repaired locations is properly performed. B

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. C

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.

a Safe environment should be secured during servicing. D

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

AVH-P4150DVD/XN/RC
5 6 7 8
3
1 2 3 4

CONTENTS
SAFETY INFORMATION ..................................................................................................................................... 2
1. SERVICE PRECAUTIONS ............................................................................................................................... 5
A
1.1 SERVICE PRECAUTIONS......................................................................................................................... 5
1.2 NOTES ON SOLDERING .......................................................................................................................... 6
2. SPECIFICATIONS ............................................................................................................................................ 7
2.1 SPECIFICATIONS...................................................................................................................................... 7
2.2 DISC/CONTENT FORMAT ...................................................................................................................... 10
2.3 PANEL FACILITIES .................................................................................................................................. 12
2.4 CONNECTION DIAGRAM ....................................................................................................................... 16
3. BASIC ITEMS FOR SERVICE........................................................................................................................ 20
3.1 CHECK POINTS AFTER SERVICING..................................................................................................... 20
3.2 PCB LOCATIONS .................................................................................................................................... 21
3.3 JIGS LIST ................................................................................................................................................ 22
3.4 CLEANING............................................................................................................................................... 23
B 4. BLOCK DIAGRAM.......................................................................................................................................... 24
4.1 OVERALL CONNECTION DIAGRAM...................................................................................................... 24
4.2 BLOCK DIAGRAM ................................................................................................................................... 26
5. DIAGNOSIS.................................................................................................................................................... 34
5.1 OPERATIONAL FLOWCHART ................................................................................................................ 34
5.2 INSPECTION METHOD OF PICKUP UNIT............................................................................................. 35
5.3 DIAGNOSIS FLOWCHART...................................................................................................................... 38
5.4 ERROR CODE LIST ................................................................................................................................ 65
5.5 CONNECTOR FUNCTION DESCRIPTION ............................................................................................. 68
6. SERVICE MODE ............................................................................................................................................ 69
6.1 MONITOR TEST MODE .......................................................................................................................... 69
6.2 DVD TEST MODE.................................................................................................................................... 89
C
6.3 DVD TOUCH PANEL TEST MODE.......................................................................................................... 93
7. DISASSEMBLY............................................................................................................................................... 94
8. EACH SETTING AND ADJUSTMENT ......................................................................................................... 103
8.1 DVD ADJUSTMENT............................................................................................................................... 103
8.2 MONITOR UNIT ADJUSTMENT............................................................................................................ 111
8.3 PCL OUTPUT CONFIRMATION ............................................................................................................ 114
9. EXPLODED VIEWS AND PARTS LIST........................................................................................................ 115
9.1 PACKING ............................................................................................................................................... 116
9.2 EXTERIOR(1) ........................................................................................................................................ 118
9.3 EXTERIOR(2) ........................................................................................................................................ 120
9.4 EXTERIOR(3) ........................................................................................................................................ 122
D 9.5 DVD MECHANISM MODULE ................................................................................................................ 124
10. SCHEMATIC DIAGRAM ............................................................................................................................. 128
10.1 MOTHER PCB(ANALOG).................................................................................................................... 128
10.2 MOTHER PCB(TUNER) ...................................................................................................................... 130
10.3 MOTHER PCB(SYSTEM)(GUIDE PAGE)............................................................................................ 132
10.4 MOTHER PCB(POWER SUPPLY)....................................................................................................... 138
10.5 IF PCB ................................................................................................................................................. 140
10.6 DVD CORE UNIT(GUIDE PAGE)......................................................................................................... 142
10.7 CONNECT PCB ................................................................................................................................... 148
10.8 KEYBOARD UNIT................................................................................................................................ 150
10.9 MONITOR UNIT(uCOM)(GUIDE PAGE).............................................................................................. 152
10.10 MONITOR UNIT(MONITOR)(GUIDE PAGE) ..................................................................................... 158
E 10.11 SERVICE PCB ASSY ........................................................................................................................ 164
10.12 WAVEFORMS .................................................................................................................................... 166
11. PCB CONNECTION DIAGRAM ................................................................................................................. 168
11.1 MOTHER PCB ..................................................................................................................................... 168
11.2 DVD CORE UNIT ................................................................................................................................. 172
11.3 CONNECT PCB ................................................................................................................................... 174
11.4 KEYBOARD UNIT................................................................................................................................ 176
11.5 MONITOR UNIT................................................................................................................................... 178
11.6 SERVICE PCB ASSY .......................................................................................................................... 182
11.7 IF PCB ................................................................................................................................................. 184
12. ELECTRICAL PARTS LIST ........................................................................................................................ 185
F

AVH-P4150DVD/XN/RC
4
1 2 3 4
5 6 7 8

1. SERVICE PRECAUTIONS
1.1 SERVICE PRECAUTIONS
A

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. Be careful in handling ICs. Some ICs such as MOS type are so fragile that they can be damaged by electrostatic
induction.
3. 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.
4. To protect the pickup unit from electrostatic discharge during servicing, take an appropriate treatment
(shorting-solder) by referring to "the DISASSEMBLY" .
5. After replacing the pickup unit, be sure to skew adjustment.
B
6. During disassembly, be sure to turn the power off since an internal IC might be destroyed when a connector
is plugged or unplugged.
7. After the replacement of LS1 mecha, connect ACC and BUP, and then press RESET button.
->Some functions such as BOOK mark may not work normally.
8. Connector CN5001 in the monitor unit : When you remove the flexible from the CKS5951,
hold up the end of the flexible holddown part to remove it.
->There is a possibility of breakage of connector pin.
9. Connector CN5001 in the monitor unit : CKS5951 is a connector of both contact points.
If you insert the flexible inversely, there is a possibility of IC damaged because of unintended connection.
So please take care not to insert it inversely. If perchance you insert it inversely, you need to replace the unit.
10. The FFC styling between mother unit and DVD mecha (LS1) requires careful attention. Fold FFC to the
mecha side and style it. C
11. Eject lock
How to enter:Reset with [VOL-] key and [SOURCE] key pressed.
Summary:DISC EJECT behavior of built-in DVD mecha is prohibited
It is for DISC antitheft from the storefront display.
With or without DISC, the behavior of pressing EJECT key during the EJECT lock is as follows.
During grille closed
Press EJECT key -> Grille is opened.
*The key is valid at the point of being pressed (BEEP). To Leave the key makes grille opened.
During grille opened
Press EJECT key -> Grille is closed.
*The key is valid at the point of being pressed (BEEP). To Leave the key makes grille opened
Remarks: [Notes] EJECT lock is not unlocked by turning ACC ON or product reset. D
To unlock it, you need to operate keys as above.
For existing model (AVH-P9DVA), it is unlocked by turning ACC ON or reset.
12. Background display data is stored in IC5201. So, if you replace the IC, the user photo data will be lost.
13. Mechanism cover (Sheet: CNN3003) is NOT reusable. If you removed it, please replace it with the new one.
14. If the gasket (CNN2782) on the FM/AM tuner unit was damaged or lost, then the reception sensitivity would
be poor. So, replace it with the new one.

NOTE: When you remove the top case

NG OK

E

Don't put tweezers or something
into these holes to remove the top
case Use these holes to remove the top
case.

F

AVH-P4150DVD/XN/RC
5 6 7 8
5
1 2 3 4

1.2 NOTES ON SOLDERING

A For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.
Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs
accompanied by reworking of soldering.

Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 C.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 C in general, although
the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of
the soldering iron.

Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting
temperatures (hard to melt/easy to harden).

B The following lead-free solders are available as service parts:
Parts numbers of lead-free solder:
GYP1006 1.0 in dia.
GYP1007 0.6 in dia.
GYP1008 0.3 in dia.

C

D

E

F

AVH-P4150DVD/XN/RC
6
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5 6 7 8

2. SPECIFICATIONS
2.1 SPECIFICATIONS
A

AVH-P4150DVD/XNCN5

Backup current ....................... 2.2 mA or less
B

C

D

E

F

AVH-P4150DVD/XN/RC
5 6 7 8
7
1 2 3 4

A
AVH-P4150DVD/XN/RC, AVH-P4150DVD/XN/RD, AVH-P4150DVD/XN/RI

General Slope ...............................