This service manual is intended for qualified service technicians ; it is not meant for the casual do-ityourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained
to properly and safety 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 safety, 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
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.
1.1 SAFETY PRECAUTIONS
NOTICE : Comply with all cautions and safety related
notes located on or inside the cabinet and on the chassis.
The following precautions should be observed :
1. When service is required, even though the PDP UNIT
an isolation transformer should be inserted between the
power line and the set in safety before any service is
performed.
2. When replacing a chassis in the set, all the protective
devices must be put back in place, such as barriers,
nonmetallic knobs, adjustment and compartment
covershields, isolation resistor-capacitor, etc.
3. When service is required, observe the original lead
dress. Extra precaution should be taken to assure correct
lead dress in the high voltage circuitry area.
4. Always use the manufacture's replacement components.
Especially critical components as indicated on the
circuit diagram should not be replaced by other
manufacture's.
Furthermore where a short circuit has occurred, replace
those components that indicate evidence of overheating.
5. Before returning a serviced set to the customer, the
service technician must thoroughly test the unit to be
certain that it is completely safe to operate without
danger of electrical shock, and be sure that no protective
device built into the set by the manufacture has become
defective, or inadvertently defeated during servicing.
Therefore, the following checks should be performed
for the continued protection of the customer and service
technician.
6. Perform the following precautions against unwanted
radiation and rise in internal temperature.
• Always return the internal wiring to the original styling.
• Attach parts (Ground, Rear Cover, Shield Case) surely
after disassembly.
7. Perform the following precautions for the PDP panel.
• When the front case is removed, make sure nothing hits
the panel face, panel corner, and panel edge (so that
the glass does not break).
• Make sure that the panel vent does not break. (Check
that the cover is attached.)
• Handle the FPC connected to the panel carefully.
Twisting or pulling the FPC when connecting it to the
connector will cause it to peel off from the panel.
8. Pay attention to the following.
• Be sure to wire the fan. If the fan does not work, the
temperature will rise and cause the protection circuit
to operate.
• When the front case is removed, infrared ray is radiated
and may disturb reception of the remote control unit.
• Pay extreme caution when the front case and rear panel
are removed because this may cause a high risk of
disturbance to TVs and radios in the surrounding.
2
PDP-501MX, PDP-V501X
Leakage Current Cold Check
With the AC plug removed from an AC power source, place
a jumper across the two plug prongs. Turn the AC power
switch on. Using an insulation tester (DC 500V), connect
one lead to the jumpered AC plug and touch the other lead
to each exposed metal part (input/output terminals,
screwheads, metal overlays, control shafts, etc.),
particularly any exposed metal part having a return path
to the chassis. Exposed metal parts having a return path to
the chassis should have a minimum resistor reading of
0.3MΩ and a maximum resistor reading of 5MΩ. Any
resistor value below or above this range indicates an
abnormality which requires corrective action. Exposed
metal parts not having a return path to the chassis will
indicate an open circuit.
Leakage Current Hot Check
Plug the AC line cord directly into an AC power source
(do not use an isolation transformer for this check).
Turn the AC power switch on.
Using a "Leakage Current Tester (Simpson Model 229
equivalent)", measure for current from all exposed metal
parts of the cabinet (input/output terminals, screwheads,
metal overlays, control shaft, etc.), particularly any
exposed metal part having a return path to the chassis, to a
known earth ground (water pipe, conduit, etc.). Any
current measured must not exceed 0.5mA.
1.2 PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in PIONEER set 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 higher voltage, wattage, etc.
Replacement parts which have these special safety
characteristics are identified in this Service Manual.
Electrical 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 dose
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
information, always consult the current PIONEER Service
Manual. A subscription to, or additional copies of,
PIONEER Service Manual may be obtained at a nominal
charge from PIONEER.
Reading should
not be above
0.5mA
Earth
ground
Device
under
test
Also test with
plug reversed
(Using AC adapter
plug as required)
Test all
exposed metal
surfaces
Leakage
current
tester
AC Leakage Test
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED BEFORE
RETURNING THE SET TO THE CUSTOMER.
3
PDP-501MX, PDP-V501X
1.3 CHARGED SECTION AND HIGH VOLTAGE GENERATING POINT
7 Charged Section
The places where the commercial AC power is used
without passing through the power supply transformer.
If the places are touched, there is a risk of electric shock.
In addition, the measuring equipment can be damaged if it
is connected to the GND of the charged section and the
GND of the non-charged section while connecting the set
directly to the commercial AC power supply. Therefore,
be sure to connect the set via an insulated transformer and
supply the current.
7 Charged Section
(Power supply primary side)
1. AC Power Cord
2. AC Inlet with Filter
3. Power Switch (S1)
4. Fuse (In the MAIN POWER ASSY)
5. STB Transformer and Converter Transformer
(In the MAIN POWER ASSY)
6. Other primary side of the MAIN POWER ASSY
For the places, refer to the EXPLODED VIEWS, the
SCHEMATIC DIAGRAM and the PCB CONNECTION
DIAGRAM sections.
X DRIVE (A) ASSY
7 High Voltage Generating Point
The places where voltage is 100V or more except for the
charged places described above. If the places are touched,
there is a risk of electric shock.
1. POWER SUPPLY MODULE (170V)
2. X DRIVE (A) ASSY(170V)
3. X DRIVE (B) ASSY(170V)
4. Y DRIVE (A) ASSY(170V)
5. Y DRIVE (B) ASSY(170V)
6. SCAN ASSY (A),(B),(C),(D) (150V)
For the places, refer to the EXPLODED VIEWS, the
SCHEMATIC DIAGRAM and the PCB CONNECTION
DIAGRAM sections.
Part is charged section.
Part is the high voltage generating points other than
the charged section.
POWER SWITCH (S1)
4
X DRIVE (B) ASSY
AC INLET
POWER SUPPLY MODULE
Y DRIVE (B) ASSY
Y DRIVE (A) ASSY
SCAN A ASSY
SCAN B ASSY
SCAN C ASSY
SCAN D ASSY
PDP-501MX, PDP-V501X
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.
•
2.1 P ACKING
2
16
12
13
18
26
19
22
10
26
11
16
22
14
23
27
5
8
4
7
3
9
27
6
1
20
PARTS LIST
Mark No.DescriptionPart No.Mark No.DescriptionPart No.
NSP1Battery (R6P,AA)AEX-010
2Rear CartonAHB1201
3Binder AssyAEC1758
4Wiping ClothAED1174
5Under Pad RAHA2213
6Under Pad LAHA2214
7AC Power CordADG1178
8Mirror MatAHG1284
9Remote Control (SR)AXD1437
10Under Pad CAHA2215
11Upper Pad RAHA2216
12Upper Pad LAHA2217
13Upper Carton (501MX)AHD2980
13Upper Carton (V501X)AHD2979
14Upper Pad CAHA2218
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS and
PARTS LIST” or “PCB PARTS LIST”
678
PDP-501MX, PDP-V501X
A
CN4101
B7
E
CN2601
F9
E
CN2602
F10
F
CN2601
G8
J
(
1/2 ,
J
L
CN7111
T15
2/2
J
)
POWER SUPPLY MODULE
(AXY1029)
N
CN7311
K15
G
CN3101
H8
G
CN3102
H11
G
CN3201
H10
H
CN3101
I 8
A
B
H
CN3104
301
D
CN1602
I 1
K
NTROL ASSY
Z6307)
D15
AG
J311
ADX2475
IR RECEIVE
ASSY
(AWZ6224)
A I
DC FAN A ASSY
(AWZ6323)
AM
AP
SENSOR A
ASSY
3D Y/C SEP. ASSY
(AWZ6332)
(AWZ6309)
AP
AK
DC FAN C ASSY
(AWZ6325)
AKC1002
K8601
DC FAN B
ASSY
(AWZ6324)
AJ
C
J5101
A7
Y312
YJSHA0-20-5/5
K8602
AKC1002
AN
SENSOR B
ASSY
(AWZ6310)
C
AL
DC FAN D
ASSY
(AWZ6326)
D
5
6
7
13
8
1
P
0
P
4
1
PDP-501MX, PDP-V501X
23
4
3.2 OVERALL CONNECTION DIAGRAM (2/2)
O
1/2,
Y
PUMP UP C
ASSY
(AWZ6251)
O
2/2
)
AE
PUMP UP K
A
ASSY
(AWZ6257)
Q
AC
PUMP UP G
ASSY
(AWZ6255)
CABLE G
ASSY
(AWZ6220)
AA
PUMP UP E
ASSY
(AWZ6253)
(
O
CABLE E
ASSY
(AWZ6218)
W
PUMP UP A
ASSY
(AWZ6249)
X
PUMP U
ASSY
(AWZ625
L
(
L
1/3
J
P11
J
E
E
(
B
X DRIVE A ASSY
(AWZ6242)
1/2,
E
2/2
)
P12
J
P17
D
CN
D
D
CN2209
D8
J
C
F
F
(
)
2/2
F
1/2,
X DRIVE B ASSY
(AWZ6243)
P
1/2,
P
(
CABLE H
R
ASSY
(AWZ6221)
D
AF
PUMP UP L
ASSY
(AWZ6258)
AD
PUMP UP H
ASSY
(AWZ6256)
AB
PUMP UP F
ASSY
(AWZ6254)
CABLE F
ASSY
(AWZ6219)
P14
2/2
P
)
Z
PUMP UP D
ASSY
(AWZ6252)
X
PUMP UP B
ASSY
(AWZ6250)
J
P18
I
CN6
E11
(
N
W
PUMP U
ASSY
(AWZ62
1/3
N
14
1234
5
678
PDP-501MX, PDP-V501X
MP UP B
SSY
WZ6250)
1/3 –
L
(
D
CN2203
D10
CABLE B ASSY
3/3
L
)
(AWZ6215)
D
CN2201
D
CN2202
D11
J
P6
J
P7
Z
PUMP UP D
ASSY
(AWZ6252)
D12
J
P5
AB
PUMP UP F
ASSY
(AWZ6254)
D
CN2208
1
2
3
4
G
(
Y DRIVE A ASSY
(AWZ6321)
D9
1/4 –
G
K
G
(
K
4/4
AD
PUMP UP H
ASSY
(AWZ6256)
2/2
K
1/2,
)
AF
PUMP UP L
ASSY
(AWZ6258)
)
CABLE A ASSY
(AWZ6214)
S
SCAN A
ASSY
(AWZ6226)
T
SCAN B
ASSY
(AWZ6227)
A
B
I
CN6508
E11
1/3 –
N
(
UMP UP A
SSY
WZ6249)
J
P8
I
CN6507
E10
CABLE D ASSY
3/3
N
)
(AWZ6217)
I
CN6503
E9
Y
PUMP UP C
ASSY
(AWZ6251)
I
CN6502
E8
H
(
1/4 –
H
Y DRIVE B ASSY
(AWZ6322)
M
AA
PUMP UP E
ASSY
(AWZ6253)
4/4
H
1/2,
M
(
AC
PUMP UP G
ASSY
(AWZ6255)
)
M
CABLE C ASSY
2/2
)
(AWZ6216)
AE
PUMP UP K
ASSY
(AWZ6257)
U
SCAN C
ASSY
(AWZ6228)
C
V
SCAN D
ASSY
(AWZ6229)
D
5
6
7
15
8
1
23
PDP-501MX, PDP-V501X
3.3 POWER SUPPLY MODULE (1/2)
A
B
4
C
D
J
16
1/2
1234
5
678
PDP-501MX, PDP-V501X
A
B
5
6
J
7
C
D
17
1/2
8
1
23
PDP-501MX, PDP-V501X
3.4 POWER SUPPLY MODULE (2/2)
A
B
4
C
D
18
J
2/2
1234
5
678
PDP-501MX, PDP-V501X
A
B
5
6
J
7
C
D
19
2/2
8
PDP-501MX ,PDP-V501X
4. PCB CONNECTION DIAGRAM
MarkNo.DescriptionPart No.
There is no information to be shown in this chapter.
5. PCB PARTS LIST
NOTES:
Mark No.DescriptionPart No.
LIST OF ASSEMBLIES
NSPCONNECTOR ASS'YAWV1647
NSPSCAN ASS'YAWV1653
NSPPUMP UP ASSYAWV1656
NSPANALOG VIDEO ASS'YAWV1685
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.
When ordering resistors, first convert resistance values into code form as shown in the following examples.
Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%,
and K=10%).
560
47k
0.5
1
56 x 10
47 x 103
R50
1R0
1
561
473
Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
5.62kRN1/4PC F562 x 10
DIGITAL VIDEO ASS'YAWV1728
CABLE A ASS'YAWZ6214
CABLE B ASS'YAWZ6215
CABLE C ASS'YAWZ6216
CABLE D ASS'YAWZ6217
CABLE G ASS'YAWZ6220
CABLE H ASS'YAWZ6221
PROGRESSIVE BLOCKAWZ6222
IR RECEIVER ASS'YAWZ6224
INDICAT OR ASS'YAWZ6225
SCAN A ASS'YAWZ6226
SCAN B ASS'YAWZ6227
SCAN C ASS'YAWZ6228
SCAN D ASS'YAWZ6229
PUMP UP A ASSYAWZ6249
PUMP UP B ASSYAWZ6250
PUMP UP C ASSYAWZ6251
PUMP UP D ASSYAWZ6252
PUMP UP E ASSYAWZ6253
PUMP UP F ASSYAWZ6254
PUMP UP G ASSYAWZ6255
PUMP UP H ASSYAWZ6256
PUMP UP K ASSYAWZ6257
PUMP UP L ASSYAWZ6258
VIDEO ASS'YAWZ6305
CONTROL ASS'YAWZ6307
RGB ASS'YAWV1687
U-CON ASS'YAWV1689
1
5621
MarkNo.DescriptionPart No.
RD1/4PU J
RD1/4PU J
RN2H K
RS1P K
561
473
R50
1R0
5621
Mark No.DescriptionPart No.
NSPX DRIVE A ASS'YAWV1692
NSPX DRIVE B ASS'YAWV1698
D
CABLE E ASS'YAWZ6218
X DRIVE A ASS'YAWZ6242
SENSER A ASSYAWZ6309
SENSER B ASSYAWZ6310
Y DRIVE A ASS'YAWV1695
Y DRIVE A ASS'YAWZ6321
DC FAN A ASSYAWZ6323
DC FAN B ASSYA WZ6324
Y DRIVE B ASS'YAWV1696
Y DRIVE B ASS'YAWZ6322
DC FAN C ASSYAWZ6325
DC FAN D ASSYAWZ6326