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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 2008
2008 Printed in Japan
DV-49AV
RRV3846
DVD PLAYER
DV-49AV
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
Power Requirement
Region No.
Remarks
DV-49AV
KUXZT/CA
AC 120 V
1
For details, refer to "Important Check Points for good servicing".
T-ZZV AUG.


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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
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 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
NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols
(fast operating fuse) and/or
(slow operating fuse) on PCB indicate that replacement parts must
be of identical designation.
REMARQUE
(POUR MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible
(fusible de type rapide) et/ou
(fusible de type lent) sur CCI indiquent que les pièces
de remplacement doivent avoir la même désignation.
ANY MEASUREMENTS NOT WITHIN THE
LIMITS OUTLINED ABOVE ARE INDICATIVE
OF A POTENTIAL SHOCK HAZARD AND
MUST BE CORRECTED BEFORE RETURN-
ING THE APPLIANCE TO THE CUSTOMER.
2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance
have special safety related characteristics. These are
often not evident from visual inspection nor the
protection afforded by them necessarily can be obtained
by using replacement components rated for voltage,
wattage, etc. Replacement par ts which have these
special safety character istics are identified in this
Service Manual.
Electr ical components having such features are
identified by marking with a
on the schematics and
on the parts list in this Service Manual.
The use of a substitute replacement component which
does not have the same safety characteristics as the
PIONEER recommended replacement one, shown in the
parts list in this Service Manual, may create shock, fire,
or other hazards.
Product Safety is continuously under review and new
instructions are issued from time to time. For the latest
infor mation, alw ays consult the current PIO N EER
Service Manual. A subscription to, or
additional copies
of, PIO N EER Ser vice Manual may be obtained at a
nominal charge from PIONEER.
(FOR USA MODEL ONLY)
1. SAFETY PRECAUTIONS
The following check should be perfor med for the
contin ued protection of the customer and ser vice
technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known ear th ground
(water pipe, conduit, etc.) by connecting a leakage
current tester such as Simpson Model 229-2 or
equivalent between the ear th ground and all exposed
metal par ts of the appliance (input/output ter minals,
screwheads, metal overlays, control shaft, etc.). Plug
the AC line cord of the appliance directly into a 120V
AC 60 Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5 mA.
Device
under
test
Leakage
current
tester
Earth
ground
Reading should
not be above
0.5 mA
Also test with
plug reversed
(Using AC adapter
plug as required)
Test all
exposed metal
surfaces
AC Leakage Test


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NECESSARY INFORMATION FOR DHHS RULES MARKED ON THE TOP OF DVD MECHANISM
AS BELOW.
CAUTION
LASER RADIATION WHEN OPEN. DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH
OPTICAL INSTRUMENTS.
CAUTION
LASER RADIATION WHEN OPEN.
DO NOT STARE INTO BEAM OR
VIEW DIRECTLY WITH OPTICAL
INSTRUMENTS.
LABEL CHECK
(Imprinted on the top of DVD mechanism)
Location: inside of the unit


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CONTENTS
SAFETY INFORMATION.......................................................................................................................................................... 2
1. SERVICE PRECAUTIONS .................................................................................................................................................... 6
1.1 NOTES ON SOLDERING ............................................................................................................................................... 6
1.2 WHEN REPLACING DVD DECK.................................................................................................................................... 6
1.3 DISC REMOVAL METHOD ............................................................................................................................................ 7
2. SPECIFICATIONS................................................................................................................................................................. 8
2.1 ACCESSORIES .............................................................................................................................................................. 8
2.2 SPECIFICATIONS .......................................................................................................................................................... 9
2.3 DISC/CONTENT FORMAT ........................................................................................................................................... 10
2.4 PANEL FACILITILES..................................................................................................................................................... 12
3. BASIC ITEMS FOR SERVICE ............................................................................................................................................ 14
3.1 CHECK POINTS AFTER SERVICING ......................................................................................................................... 14
3.2 PCB LOCATIONS ......................................................................................................................................................... 15
3.3 JIGS LIST ..................................................................................................................................................................... 16
4. BLOCK DIAGRAM .............................................................................................................................................................. 18
4.1 OVERALL WIRING DIAGRAM ..................................................................................................................................... 18
4.2 OVERALL BLOCK DIAGRAM....................................................................................................................................... 20
4.3 DVD LOADER/MPEG BLOCK DIAGRAM .................................................................................................................... 21
4.4 POWER BLOCK DIAGRAM ......................................................................................................................................... 22
5. DIAGNOSIS ........................................................................................................................................................................ 23
5.1 TROUBLE SHOOTING................................................................................................................................................. 23
5.2 METHOD FOR DIAGNOSING DEGRADATION OF THE LDS ON THE PICKUP ASSY ............................................. 28
6. SERVICE MODE ................................................................................................................................................................. 29
6.1 SERVICE MODE PROCEDURE .................................................................................................................................. 29
6.2 SERVICE MODE IN...................................................................................................................................................... 30
6.3 DISPLAY SPECIFICATION OF THE SERVICE MODE ................................................................................................ 31
6.4 FUNCTIONAL SPECIFICATION OF THE SHORTCUT KEY ....................................................................................... 32
6.5 FUNCTIONAL SPECIFICATION OF THE SERVICE MODE ........................................................................................ 33
7. DISASSEMBLY ................................................................................................................................................................... 34
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................ 39
8.1 RE-WRITE FOR DVD FIRMWAVE ............................................................................................................................... 39
9. EXPLODED VIEWS AND PARTS LIST............................................................................................................................... 42
9.1 PACKING ...................................................................................................................................................................... 42
9.2 EXTERIOR SECTION .................................................................................................................................................. 44
9.3 06 DVD MECHA SECTION .......................................................................................................................................... 46
10. SCHEMATIC DIAGRAM .................................................................................................................................................... 48
10.1 DVD MT PCB ASSY(1/7) ............................................................................................................................................ 48
10.2 DVD MT PCB ASSY(2/7) ............................................................................................................................................ 50
10.3 DVD MT PCB ASSY(3/7) ............................................................................................................................................ 52
10.4 DVD MT PCB ASSY(4/7) ............................................................................................................................................ 54
10.5 DVD MT PCB ASSY(5/7) ............................................................................................................................................ 56
10.6 DVD MT PCB ASSY(6/7) ............................................................................................................................................ 58
10.7 DVD MT PCB ASSY(7/7) ............................................................................................................................................ 60
10.8 OPERATION PCB ASSY ............................................................................................................................................ 62
10.9 POWER PCB ASSY(1/2) ............................................................................................................................................ 64
10.10 POWER PCB ASSY(2/2) .......................................................................................................................................... 66
10.11 WAVEFORMS........................................................................................................................................................... 67
11. PCB CONNECTION DIAGRAM ........................................................................................................................................ 69
11.1 LOADING MOTOR and SW........................................................................................................................................ 69
11.2 DVD MT PCB ASSY ................................................................................................................................................... 70
11.3 OPERATION PCB ASSY ............................................................................................................................................ 72
11.4 POWER PCB ASSY ................................................................................................................................................... 73
12. PCB PARTS LIST .............................................................................................................................................................. 75