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
DVH-3900MP/XZ/EW5
CRT3988
DVD RDS RECEIVER
DVH-3900MP
/XZ/EW5
DVD RECEIVER
DVH-390MP/XZ/RE
DVH-3950MP/XZ/RC
DVH-3950MP/XZ/RD
DVH-3950MP/XZ/RI
Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol
are trademarks of Dolby Laboratories.
For details, refer to "Important Check Points for Good Servicing".
K-ZZD. AUG. 2007 Printed in Japan
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SAFETY INFORMATION
1. Safety Precautions for those who Service this Unit.
· Follow the adjustment steps in the service manual when servicing 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.
2. The trianglar label is attached to the mechanism unit frame.
On the bottom of the this unit.
CAUTION
This product contains a laser diode of higher class
than 1. To ensure continued safety, do not
remove any covers or attempt to gain access to
the inside of the product.
Refer all servicing to qualified personnel.
The following caution label appears on your unit.
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.
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.
Laser diode characteristics
Wave length:
DVD : 640 nm to 660 nm
CD
: 775 nm to 805 nm
Maximum output:
DVD : 1.37 mW(Emitting period : 9 sec.)
CD
: 710 uW(Emitting period : unlimited)
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Additional Laser Caution
Transistors Q1101 in PCB drive the laser diodes for DVD and CD respectively.
When Q1101 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
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.
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[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.
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.
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.
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CONTENTS
SAFETY INFORMATION .......................................................................................................................................................... 2
1. SERVICE PRECAUTIONS..................................................................................................................................................... 6
1.1 SERVICE PRECAUTIONS .............................................................................................................................................. 6
1.2 NOTES ON SOLDERING................................................................................................................................................ 6
2. SPECIFICATIONS.................................................................................................................................................................. 7
2.1 SPECIFICATIONS ........................................................................................................................................................... 7
2.2 DISC/CONTENT FORMAT.............................................................................................................................................. 9
2.3 PANEL FACILITIES ....................................................................................................................................................... 10
2.4 CONNECTION DIAGRAM............................................................................................................................................. 13
3. BASIC ITEMS FOR SERVICE ............................................................................................................................................. 14
3.1 CHECK POINTS AFTER SERVICING .......................................................................................................................... 14
3.2 JIGS LIST ...................................................................................................................................................................... 15
3.3 CLEANING .................................................................................................................................................................... 15
4. BLOCK DIAGRAM ............................................................................................................................................................... 16
4.1 BLOCK DIAGRAM......................................................................................................................................................... 16
5. DIAGNOSIS ......................................................................................................................................................................... 20
5.1 OPERATIONAL FLOWCHART...................................................................................................................................... 20
5.2 CONNECTOR FUNCTION DESCRIPTION .................................................................................................................. 37
6. SERVICE MODE.................................................................................................................................................................. 38
6.1 DVD MECHANISM TEST MODE .................................................................................................................................. 38
6.2 HOW TO CONFIRM THE SOFTWARE VERSION........................................................................................................ 38
7. DISASSEMBLY .................................................................................................................................................................... 39
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................. 41
9. EXPLODED VIEWS AND PARTS LIST ............................................................................................................................... 42
9.1 EXTERIOR .................................................................................................................................................................... 42
9.2 MECHANISM ASSEMBLY............................................................................................................................................. 45
10. SCHEMATIC DIAGRAM..................................................................................................................................................... 46
10.1 PCB ASSEMBLY, MAIN(1/2)(GUIDE PAGE)............................................................................................................... 46
10.2 PCB ASSEMBLY, MAIN(2/2) ....................................................................................................................................... 52
10.3 PCB ASSEMBLY, FRONT,HAND INSERT PCB ASSEMBLY, SUB AND AUTO SMT PCB ASSEMBLY, DISPLAY.... 54
10.4 OPTION CODE ASSENBLY(1/3) ................................................................................................................................ 56
10.5 OPTION CODE ASSENBLY(2/3) ................................................................................................................................ 58
10.6 OPTION CODE ASSENBLY(3/3) ................................................................................................................................ 60
10.7 WAVEFORMS.............................................................................................................................................................. 62
11. PCB CONNECTION DIAGRAM ......................................................................................................................................... 74
11.1 PCB ASSEMBLY, MAIN ............................................................................................................................................... 74
11.2 PCB ASSEMBLY, FRONT............................................................................................................................................ 78
11.3 OPTION CODE ASSENBLY ........................................................................................................................................ 80
11.4 HAND INSERT PCB ASSEMBLY, SUB AND AUTO SMT PCB ASSEMBLY, DISPLAY .............................................. 84
12. ELECTRICAL PARTS LIST................................................................................................................................................ 85