ORDER NO.
PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE, 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
c
DV-646A
RRV2453
T ZZE JUNE 2001 Printed in Japan
DVD PLAYER
1. SAFETY INFORMATION ....................................... 2
2. EXPLODED VIEWS AND PARTS LIST ................. 3
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ... 10
4. PCB CONNECTION DIAGRAM ........................... 39
5. PCB PARTS LIST ................................................ 51
6. ADJUSTMENT ..................................................... 55
CONTENTS
7. GENERAL INFORMATION ................................ 61
7.1 DIAGNOSIS .................................................. 61
7.1.1 ID NUMBER AND ID DATA SETTING . 61
7.1.2 SELF-DIAGNOSTIC FUNCTION OF
PICKUP DEFECTIVE ........................... 63
7.1.3 TEST POINTS LOCATION ................... 64
7.1.4 TEST MODE SCREEN DISPLAY ........ 66
7.1.5 TROUBLE SHOOTING ........................ 70
7.1.6 ERROR CODE ..................................... 71
7.1.7 DISASSEMBLY .................................... 75
7.2 IC .................................................................. 80
8. PANEL FACILITIES AND SPECIFICATIONS .. 101
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type
Model
Power Requirement
Region No.
Remarks
DV-646A
WYXJ
AC220-240V
2
0
8
7
¡¢
41
3
Î
STANDBY/ON
FL DIMMER
LEGATO
PRO
FL OFF
AUDIO/VIDEO
2
DV-646A
1. SAFETY INFORMATION
(Printed on the Rear Panel)
LABEL CHECK
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.
LASER DIODE CHARACTERISTICS
FOR DVD : MAXIMUM OUTPUT POWER : 5 mW
WAVELENGTH : 655 nm
FOR CD :
MAXIMUM OUTPUT POWER : 5 mW
WAVELENGTH : 785 nm
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.
Additional Laser Caution
1. Loading-status detection switch (S101 on the LOAB assy) are detected
by the microprocessor (IC601 in the DVDM assy).
· To permit the laser diode to oscillate, it is required to set the loading-
status detection switch for the clamp position (the center terminal of S101
is shorted to +3V).
When the voltage of IC101-pin 20 is +3V and IC601 (microprocessor) -
pin 83 is +3V, 650nm laser diode for DVD oscillates in the DVDM Assy.
When the voltage of IC101-pin 20 is +3V and IC601 (microprocessor) -
pin 83 is 0V (GND), 780nm laser diode for CD oscillates in the DVDM
Assy.
In the test mode
, the laser diode oscillates when microprocessor detects
a PLAY signal, or when the PLAY key is pressed (S252 ON in the KEYB
assy), with the above requirements satisfied.
2. When the cover is open, close viewing through the objective lens with
the naked eye will cause exposure to the laser beam.
: See page 57.
DV-646A
3
PACKING PARTS LIST
Mark No.
Description
Part No.
FRONT
13, 14
"Operating Instructions"
5
4
12
6
20
10
2
3
1
8
9
7
11
1
Power Cable
ADG1154
2
Audio Cable (L = 1.5m)
VDE1052
3
Video Cable (L = 1.5m)
VDE1053
4
Remote Control Unit
VXX2627
5
Battery Cover
VNK4423
NSP
6
Dry Cell Battery (R6P, AA)
VEM-013
7
Pad F
VHA1269
8
Pad R
VHA1270
9
Packing Case
VHG2062
10
Mirror Mat Sheet
Z23-007
2.1 PACKING
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.
NSP
11
Warranty Card
ARY7022
12
Polyethylene Bag
VHL1051
13
Operating Instructions
VRE1088
(English/French/German/Italian)
14
Operating Instructions
VRF1057
(Spanish/Portuguese/Dutch/Swedish)
15
· · · · ·
16
· · · · ·
17
· · · · ·
18
· · · · ·
19
· · · · ·
NSP
20
Polyethylene Bag
AHG7032
Mark No.
Description
Part No.
DV-646A
4
2.2 EXTERIOR SECTION
A
B
C
D
D
C
E
E
A
B
Refer to
"2.3 LOADING MECHANISM ASSY".
34
32
10
32
30
9
12
5
17
33
31
33
28
30
29
29
11
16
1
2
3
20
24
21
22
25
26
4
19
29
29
23
14
13
15
6
30
30
30
30
7
D
C
F
E
G
H
B
27
18
31
33
33
29
29
29
29
8
29
29
29
29
29
DV-646A
5
EXTERIOR PARTS LIST
Mark No.
Description
Part No.
1
FLIR Assy
VWG2297
NSP
2
KEYB Assy
VWG2306
NSP
3
PWSB Assy
VWG2307
4
AVJB Assy
VWV1866
5
DVDM Assy
VWS1470
6
SCRB Assy
VWV1850
7
Connector Assy
PG05KK-E15
8
FFC
VDA1870
9
POWER SUPPLY Unit
VWR1340
NSP
10
Loading Mechanism Assy
VWT1188
11
PCB Support
VEC1266
12
PCB Support
VEC2184
13
Foot
VEC2185
14
PCB Holder
VEC2215
NSP
15
Chassis
VNA2160
16
Rear Panel
VNA2309
17
Adapter27 L
VNL1926
18
Adapter27 R
VNL1927
19
Insulator
VXA2424
20
DVD-A/V Plate
VAM1118
21
Sub Plate
VEC2205
22
FL Lens
VEC2211
23
FL Filter
VEC2213
24
Tray Panel
VNK4819
25
Front Panel Assy
VXA2447
26
Pioneer Name Plate
VAM1109
27
Label
VRW1872
NSP
28
ID Label
VRW1877
29
Screw
BBZ30P060FMC
30
Screw
BBZ30P080FZK
31
Screw
BBZ30P180FMC
32
Screw
BCZ40P060FZK
33
Screw
PPZ30P080FMC
34
Bonnet Case S
VXX2750