Pioneer DV-420V-K User manual

ORDER NO.
PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, 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
2010
2010 Printed in Japan
DV-420V-K
RRV4064
DVD PLAYER
DV-420V-K
DV-420V-S
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
This manual is for DV-420V series 2010 models.
There are 2009 models and 2010 models of DV-420V series.
Since there is no interchangeability in parts (such as mech assy, etc), please confirm the serial number to identify 2010 models
from 2009 models.
The numeric part in the serial number of DV-420V series 2010 models is starting with 5.
Serial No.
&&&&5#####&& (&:Alphabets, #:Numerics)
“5”:Identification No. for 2010 model
Model Type Power Requirement Region No. Remarks
DV-420V-K YXZT52 AC 220 V to 240 V 2
DV-420V-S YXZT52 AC 220 V to 240 V 2
DV-420V-K SXZT2 AC 220 V to 240 V 5
DV-420V-S SXZT2 AC 220 V to 240 V 5
DV-420V-K UCXZTSM2 AC 120 V 1
For details, refer to "Important Check Pointsfor good servicing".For details, refer to "Important Check Pointsfor good servicing".
K-FZU JULY
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http://www.xiaoyu163.com
http://www.xiaoyu163.com

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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
trainedto 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 !
THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT ISLESS THAN CLASS 1
BUT THE LASER COMPONENT ISCAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR
CLASS 1.
A SPECIALLY INSTRUCTED PERSON SHOULD DO SERVICING OPERATION OF THE APPARATUS.
LASER DIODE CHARACTERISTICS
FOR DVD : MAXIMUM OUTPUT POWER : 5 mW
WAVELENGTH : 650 nm
FOR CD : MAXIMUM OUTPUT POWER : 5 mW
WAVELENGTH : 780 nm
Additional Laser Caution
∗: See page 35.
1.
• Laser diode isdriving with Q2303,Q2305(650nm LD) and Q2302,
Q2304(780nm LD)on the DVD MT PCB Assy.
Therefore, when short-circuit between the emitter and collector of these
transistorsor the base voltage issupplied for transistorsturn on, the
laser oscillates. (failure mode)
• In the test mode ∗, there isthe mode that the laser oscillatesexcept
for the disc judgment and playback. LD ON mode in the test mode
oscillateswith the laser forcibly.
Note) Q2302/Q2304 existson the side B of the board.
Refer to the circuit diagram on page 57.
2. When the cover isopen, close viewing through the objective lenswith
the naked eye will cause exposure to the laser beam.
LABEL CHECK
(Printed on the Rear Panel)
Location: inside of the unit
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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.
aSafe 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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http://www.xiaoyu163.com
http://www.xiaoyu163.com

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CONTENTS
SAFETY INFORMATION ..........................................................................................................................................................2
1. SERVICE PRECAUTIONS ....................................................................................................................................................5
2. SPECIFICATIONS .................................................................................................................................................................8
2.1 SPECIFICATIONS...........................................................................................................................................................8
2.2 DISC/CONTENT FORMAT ...........................................................................................................................................10
2.3 PANEL FACILITIES .......................................................................................................................................................16
3. BASIC ITEMS FOR SERVICE.............................................................................................................................................19
3.1 CHECK POINTS AFTER SERVICING..........................................................................................................................19
3.2 PCB LOCATIONS .........................................................................................................................................................20
3.3 JIGS LIST......................................................................................................................................................................21
4. BLOCK DIAGRAM...............................................................................................................................................................22
4.1 OVERALL WIRING DIAGRAM......................................................................................................................................22
4.2 OVERALL BLOCK DIAGRAM (YXZT52, SXZT2) .........................................................................................................24
4.3 OVERALL BLOCK DIAGRAM (UCXZTSM2) ................................................................................................................25
4.4 DVD LOADER/MPEG BLOCK DIAGRAM (YXZT52, SXZT2).......................................................................................26
4.5 DVD LOADER/MPEG BLOCK DIAGRAM (UCXZTSM2)..............................................................................................27
4.6 POWER BLOCK DIAGRAM..........................................................................................................................................28
5. DIAGNOSIS.........................................................................................................................................................................29
5.1 TROUBLESHOOTING ..................................................................................................................................................29
5.2 SEQUENCE AFTER POWER ON ................................................................................................................................32
5.3 METHOD FOR DIAGNOSING DEGRADATION OF THE LDS ON THE PICKUP ASSY..............................................34
6. SERVICE MODE .................................................................................................................................................................35
6.1 SERVICE MODE PROCEDURE...................................................................................................................................35
6.2 SERVICE MODE IN ......................................................................................................................................................36
6.3 DISPLAY SPECIFICATION OF THE SERVICE MODE.................................................................................................37
6.4 FUNCTIONAL SPECIFICATION OF THE SHORTCUT KEY........................................................................................38
6.5 FUNCTIONAL SPECIFICATION OF THE SERVICE MODE ........................................................................................39
7. DISASSEMBLY....................................................................................................................................................................40
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................44
8.1 RE-WRITE FOR DVD FIRMWARE ...............................................................................................................................44
9. EXPLODED VIEWS AND PARTS LIST...............................................................................................................................46
9.1 PACKING SECTION......................................................................................................................................................46
9.2 EXTERIOR SECTION...................................................................................................................................................48
9.3 DVD MECHA SECTION................................................................................................................................................50
10. SCHEMATIC DIAGRAM ....................................................................................................................................................52
10.1 DVD MT PCB ASSY (1/7) ...........................................................................................................................................52
10.2 DVD MT PCB ASSY (2/7) ...........................................................................................................................................54
10.3 DVD MT PCB ASSY (3/7) ...........................................................................................................................................56
10.4 DVD MT PCB ASSY (4/7) ...........................................................................................................................................58
10.5 DVD MT PCB ASSY (5/7) (YXZT52, SXZT2) .............................................................................................................60
10.6 DVD MT PCB ASSY (5/7) (UCXZTSM2) ....................................................................................................................62
10.7 DVD MT PCB ASSY (6/7) ...........................................................................................................................................64
10.8DVD MT PCB ASSY (7/7) ...........................................................................................................................................66
10.9 OPERATION PCB ASSY ............................................................................................................................................68
10.10 POWER PCB ASSY (1/2) .........................................................................................................................................70
10.11 POWER PCB ASSY (2/2) (YXZT52, SXZT2)............................................................................................................72
10.12 WAVEFORMS ...........................................................................................................................................................74
11. PCB CONNECTION DIAGRAM ........................................................................................................................................76
11.1 DVD MT PCB ASSY....................................................................................................................................................76
11.2 OPERATION PCB and LOADING MOTOR PCB ASSYS ...........................................................................................78
11.3 POWER PCB ASSY....................................................................................................................................................80
12. PCB PARTS LIST ..............................................................................................................................................................82
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http://www.xiaoyu163.com

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1. SERVICE PRECAUTIONS
• For environmental protection, lead-free solder isused on the printed circuit boardsmounted in thisunit.
Be sure to use lead-free solder and asoldering iron that can meet specificationsfor use with lead-free soldersfor repairs
accompanied by reworking of soldering.
• Compared with conventional eutectic solders, lead-free soldershave higher melting points, by approximately 40 oC.
Therefore, for lead-free soldering, the tip temperature of asoldering iron must be set to around 373oC in general, although
the temperature dependson the heat capacity of the PC board on which reworking isrequired and the weight of the tip of
the soldering iron.
Do NOT use asoldering iron whose tip temperature cannot be controlled.
Compared with eutectic solders, lead-free soldershave higher bond strengthsbut slower wetting timesand higher melting
temperatures(hard to melt/easy to harden).
The following lead-free soldersare available as service parts:
• Partsnumbersof lead-free solder:
GYP1006 1.0 in dia.
GYP1007 0.6 in dia.
GYP1008 0.3in dia.
[ When removingthe DVD Deck ]
Before removing Pick Up PCB and DVD MT PCB connector, the short circuit the position shown in Fig. 1
using asoldering iron. If youremove the DVD Deck with no soldering, the Laser may be damaged.
[ When installingthe DVD Deck ]
Remove all the soldering on the short circuit position after the connection of Pick Up PCB and DVD
MT PCB connector.
NOTE
• Before your operation, please read "PREPARATION OF SERVICING"
•Use the Lead Free solder.
•Manual soldering conditions
• Soldering temperature: 320 ± 20oC
• Soldering time: Within 3seconds
• Soldering combination: Sn-3.0Ag-0.5Cu
•WhenSoldering/Removing of solder, use the draw in equipment over the Pick Up Unit to keep the
Flux smoke away from it.
Pick Up PCB
Fig. 1
Short circuit using a
soldering iron.
WHEN REPLACING DVD DECK
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http://www.xiaoyu163.com
http://www.xiaoyu163.com