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 2001
RRV2552
T ZZY NOV. 2001 Printed in Japan
DVD-D304
DVD-ROM DRIVE UNIT
1. SAFETY INFORMATION ....................................... 3
2. EXPLODED VIEWS AND PARTS LIST ................. 4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 10
4. PCB CONNECTION DIAGRAM ........................... 20
5. PCB PARTS LIST ................................................ 24
6. ADJUSTMENT ..................................................... 26
CONTENTS
7. GENERAL INFORMATION .................................. 31
7.1 DIAGNOSIS ................................................... 31
7.1.1 DISASSEMBLY .................................... 31
7.2 PARTS ........................................................... 33
7.2.1 IC .......................................................... 33
8. PANEL FACILITIES AND SPECIFICATIONS ....... 34
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Remarks
Type
Model
DVD-D304
Power Requirement
ZUCYV/WL
O
DC Power supply from other system
For details, refer to "Important symbols for good services" on the next page.
DVD-D304
2
[ Important symbols for good services ]
In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely.
When you find the procedures bearing any of the symbols, be sure to fulfill them:
2. Adjustments
To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable.
In accordance with the procedures or instructions described in this manual, adjustments should be performed.
3. Cleaning
For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning,
proper cleaning should be performed to restore their performances.
5. Lubricants, glues, and replacement parts
Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying
glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the
prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed
ones should be used.
4. Shipping mode and shipping screws
To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or
the shipping screws should be installed before shipping out in accordance with this manual, if necessary.
1. Product safety
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.
[ NOTES ON SERVICING ]
7 CLEARNING
Before shipping out the product, be sure to clean the following positions by using the prescribed cleaning tools:
Position to be cleaned
Cleaning tools
Pickup leneses
Cleaning liquid : GEM1004
Cleaning paper : GED-008
DVD-D304
3
1. 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.
WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause
cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 Proposition 65
IMPORTANT
THIS PIONEER APPARATUS CONTAINS
LASER OF CLASS 1.
SERVICING OPERATION OF THE APPARATUS
SHOULD BE DONE BY A SPECIALLY
INSTRUCTED PERSON.
LASER DIODE CHARACTERISTICS
MAXIMUM OUTPUT POWER: 7 mw
WAVELENGTH: 650 nm (DVD) , 780 nm (CD-ROM)
1. The ON/OFF(ON:low level,OFF:high level) status of the
CLAMP signals for detcting the loading state are detected
by the drive CPUs, and the design prevents laser diode
oscillation when the CLAMP signal turns OFF.
In normal operation, if no disc is clamped, the laser diode
oscillation is disabled.
However, the interlock does not always operate in the test
mode.
*
2. When the cover is opened, close viewing of the objective
lens with the naked eye will cause exposure to a Class 1
laser beam.
Additional Laser Caution
* Refer to page 28.
DVD-D304
4
2.1 PACKING
4
5
2
11
10
9
1
3
8
6
7
2. EXPLODED VIEWS AND PARTS LIST
NOTES:
· Parts marked by "NSP" 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.
Therefore, when replacing, be sure to use parts of identical designation.
· Screws 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.)
DVD-D304
5
NSP
1
Warranty Card
ARY1093
2
Operating Instructions
DRC1172
(English/ French/ German/ Japanese)
NSP
3
Polyethylene Bag
Z21-010
(100x230x0.018)
NSP
4
Polyethylene Bag
Z21-038
(230x340x0.03)
5
Pad
DHA1479
6
Packing Case
DHG2186
7
Bag
DHL1052
NSP
8
Label
VRW1629
9
Screw
BBZ30P080FZK
10
SCSI Cable
DDC1006
NSP
11
Polyethylene Bag
Z21-002
(50x70x0.03)
Mark No.
Description
Part No.
PARTS LIST