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PROVISIONAL
RRV4285P
BDP-LX55

Blu-ray 3DTM PLAYER

BDP-LX55
BDP-53FD

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Power DVD BD
Model Type Serial No. Remarks
Requirement Region No. Region No.

BDP-LX55 YXCN5 AC 100 V to 240 V 2 B &&&&######YY YY:Europe

BDP-LX55 VXCN5 AC 100 V to 240 V 2 B &&&&######GB GB:U.K

BDP-LX55 FWLXCN AC 100 V to 240 V 3 A &&&&######TA TA:Taiwan

BDP-53FD UCXCN AC 120 V 1 A &&&&######UC UC:NORTH AMERICA

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 2011
K-FZV DEC. 2011 Printed in Japan
1 2 3 4

SAFETY INFORMATION

A

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 may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive
B
harm.
Health & Safety Code Section 25249.6 - Proposition 65

(FOR USA MODEL ONLY)
ANY MEASUREMENTS NOT WITHIN THE LIMITS
1. SAFETY PRECAUTIONS
OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL
The following check should be performed for the
SHOCK HAZARD AND MUST BE CORRECTED BEFORE
continued protection of the customer and service
RETURNING THE APPLIANCE TO THE CUSTOMER.
technician.
LEAKAGE CURRENT CHECK
C Measure leakage current to a known earth ground 2. PRODUCT SAFETY NOTICE
(water pipe, conduit, etc.) by connecting a leakage Many electrical and mechanical parts in the appliance
current tester such as Simpson Model 229-2 or have special safety related characteristics. These are
equivalent between the earth ground and all exposed often not evident from visual inspection nor the protection
metal parts of the appliance (input/output terminals, afforded by them necessarily can be obtained by using
screwheads, metal overlays, control shaft, etc.). Plug replacement components rated for voltage, wattage, etc.
the AC line cord of the appliance directly into a 120 V Replacement parts which have these special safety
AC 60 Hz outlet and turn the AC power switch on. Any characteristics are identified in this Service Manual.
current measured must not exceed 0.5 mA. Electrical components having such features are
identified by marking with a > on the schematics and on
the parts list in this Service Manual.
D Reading should The use of a substitute replacement component which
Leakage not be above does not have the same safety characteristics as the
Device current 0.5 mA
under tester PIONEER recommended replacement one, shown in the
test parts list in this Service Manual, may create shock, fire,
Test all or other hazards.
exposed metal
surfaces Product Safety is continuously under review and new
instructions are issued from time to time. For the latest
information, always consult the current PIONEER Service
Also test with Manual. A subscription to, or additional copies of,
plug reversed Earth PIONEER Service Manual may be obtained at a nominal
(Using AC adapter ground
E plug as required) charge from PIONEER.

AC Leakage Test

F

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WARNING ! A
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 Pickup specifications and Laser characteristics

For BD Wave length : 405 nm
Operating output :
SL : 0.32
DL : 0.64 mW CW, Class 1
Maximum output : Class 1M (under fault condition) B

For DVD Wave length : 660 nm
Operating output : 0.40 mW CW, Class 1
Maximum output : Class 1 (under fault condition)

For CD Wave length : 785 nm
Operating output : 0.41 mW CW, Class 1
Maximum output : Class 1M (under fault condition)

C
LABEL CHECK
The following caution appears on your unit.
Location: inside of the unit

(Printed on the Back Plate)

D

E

F

BDP-LX55 3
5 6 7 8
1 2 3 4

CONTENTS
SAFETY INFORMATION ..........................................................................................................................................................2
1. SERVICE PRECAUTIONS ....................................................................................................................................................5
A 1.1 NOTES ON SOLDERING ...............................................................................................................................................5
2. SPECIFICATIONS .................................................................................................................................................................6
2.1 ACCESSORIES ..............................................................................................................................................................6
2.2 SPECIFICATIONS...........................................................................................................................................................6
2.3 TYPES OF DISCS/FILES THAT CAN BE PLAYED ........................................................................................................7
3. BASIC ITEMS FOR SERVICE.............................................................................................................................................12
3.1 CHECK POINTS AFTER SERVICING..........................................................................................................................12
3.2 PCB LOCATIONS .........................................................................................................................................................13
3.3 JIGS LIST......................................................................................................................................................................13
4. BLOCK DIAGRAM...............................................................................................................................................................14
4.1 OVERALL CONNECTION DIAGRAM ...........................................................................................................................14
4.2 BLOCK DIAGRAM FOR POWER BLOCK ....................................................................................................................16
B 5. DIAGNOSIS.........................................................................................................................................................................18
5.1 DIAGNOSIS FLOWCHART...........................................................................................................................................18
6. SERVICE MODE .................................................................................................................................................................25
6.1 HOW TO ENTER TO SERVICE MODE ........................................................................................................................25
6.2 DESCRIPTION OF EACH ITEM ...................................................................................................................................25
6.3 DETAILED DESCRIPTION OF ITEMS USED IN SERVICE .........................................................................................26
7. DISASSEMBLY....................................................................................................................................................................31
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................39
8.1 NECESSARY ADJUSTMENT POINTS.........................................................................................................................39
8.2 FIRMWARE UPDATE....................................................................................................................................................39
9. EXPLODED VIEWS AND PARTS LIST...............................................................................................................................40
9.1 PACKING SECTION......................................................................................................................................................40
C
9.2 EXTERIOR SECTION...................................................................................................................................................42
10. SCHEMATIC DIAGRAM ....................................................................................................................................................44
10.1 MAIN BOARD ASSY (1/15) : POWER SOURCE (Sheet No.2) ..................................................................................44
10.2 MAIN BOARD ASSY (2/15) : DDR-1 (Sheet No.3) .....................................................................................................46
10.3 MAIN BOARD ASSY (3/15) : DDR-2 (Sheet No.4) .....................................................................................................48
10.4 MAIN BOARD ASSY (4/15) : HDMI (Sheet No.5) .......................................................................................................50
10.5 MAIN BOARD ASSY (5/15) : FLASH (Sheet No.6).....................................................................................................52
10.6 MAIN BOARD ASSY (6/15) : VFD/IR (Sheet No.7) ....................................................................................................54
10.7 MAIN BOARD ASSY (7/15) : AUDIO DAC (Sheet No.8).............................................................................................56
10.8 MAIN BOARD ASSY (8/15) : VIDEO OUTPUT (Sheet No.9) .....................................................................................58
10.9 MAIN BOARD ASSY (9/15) : FE (Sheet No.10)..........................................................................................................60
D
10.10 MAIN BOARD ASSY (10/15) : MOTOR DRIVER+CPU (Sheet No.11).....................................................................62
10.11 MAIN BOARD ASSY (11/15) : DDR2 (Sheet No.12) ................................................................................................64
10.12 MAIN BOARD ASSY (12/15) : POWER-DADT (Sheet No.13)..................................................................................66
10.13 MAIN BOARD ASSY (13/15) : INTERFACE (Sheet No.14) ......................................................................................68
10.14 MAIN BOARD ASSY (14/15) : SIL9136-POWER (Sheet No.15) ..............................................................................70
10.15 MAIN BOARD ASSY (15/15) : MCU/SWITCH (Sheet No.16)...................................................................................72
10.16 FRONT BOARD ASSY..............................................................................................................................................74
10.17 SWITCH BOARD ASSY............................................................................................................................................76
10.18 RS BOARD ASSY .....................................................................................................................................................77
10.19 POWER BOARD ASSY ............................................................................................................................................78
11. PCB CONNECTION DIAGRAM ........................................................................................................................................80
11.1 MAIN BOARD ASSY ...................................................................................................................................................80
E 11.2 FRONT BOARD ASSY................................................................................................................................................84
11.3 SWITCH BOARD, RS BOARD and POWER BOARD ASSYS....................................................................................86
12. PCB PARTS LIST ..............................................................................................................................................................88

F

4 BDP-LX55
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1. SERVICE PRECAUTIONS
1.1 NOTES ON SOLDERING