Pioneer PDU-50WX2 Service Manual

PLASMA DISPLAY

PDU-50WX2

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Type

TUCYV AC100 - 240V

¶ This service manual should be used together with the following manual(s).

Model No. Order No. Remarks

Model

PDU-50WX2

Power Requirement Remarks

ORDER NO.

ARP3114

PDU-50WX2 ARP3115 SCHEMATIC DIAGRAM and PCB DIAGRAM

CONTENTS

1. SAFETY INFORMATION

2. EXPLODED VIEWS AND PARTS LIST

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
(For SCHEMATIC DIAGRAM, refer to ARP3115)

4. PCB CONNECTION DIAGRAM

5. PCB PARTS LIST

6. ADJUSTMENT

For details, refer to "Important symbols for good services" on the next page.

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

c

PIONEER CORPORATION 2002

................................................

.....................................................

.......................................

.................

...

Refer to ARP3115

...

24

36
45

3
6

7. GENERAL INFORMATION

7.1 DIAGNOSIS

7.1.1 PCB LOCATION

7.1.2 SHUT DOWN/POWER DOWN
DIAGNOSIS BY LED DISPLAY

7.1.3 DISASSEMBLY

7.2 IC INFORMATION

..................................................

................................

...................................

...........

.....................................

........................................

T – ZZK JAN. 2002 Printed in Japan

68
68
68

69
75
77

PDU-50WX2

[ Important symbols for good services ]

In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely.
When you find the procedures bearing any of the symbols, be sure to fulfill them:

1. Product safety

You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and
should keep the safety during servicing by following the safety instructions described in this manual.

2. Adjustments

To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable.
In accordance with the procedures or instructions described in this manual, adjustments should be performed.

3. Cleaning

For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning,
proper cleaning should be performed to restore their performances.

4. Shipping mode and shipping screws

To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or
the shipping screws should be installed before shipping out in accordance with this manual, if necessary.

5. Lubricants, glues, and replacement parts

Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying
glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the
prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed
ones should be used.

2

PDU-50WX2

1. SAFETY INFORMATION

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 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 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.

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.

Health & Safety Code Section 25249.6 – Proposition 65

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 resistor­capacitor, 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 when it was built in by a product.

• Always return the internal wiring to the original styling.

• Attach parts (Front Protect Panel etc.) surely after disassembly.

7. Perform the following precautions for the PDP panel.

• When the Front Protect Panel 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.

• When the Front Protect Panel is removed, infrared ray is
radiated and may disturb reception of the remote control unit.

• Pay extreme caution when the Front Protect Panel are removed
because this may cause a high risk of disturbance to TVs and
radios in the surrounding.

3

PDU-50WX2

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
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.

on the schematics and on the parts list in this Service

Reading should
not be above

0.5 mA

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.

4

PDU-50WX2

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.

1. Fuse (In the SW POWER SUPPLY Module)

2. STB Transformer and Converter Transformer
(In the SW POWER SUPPLY Module)

3. Other primary side of the SW POWER SUPPLY Module

Y DRIVE
Assy

SCAN (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. SW POWER SUPPLY Module ...................................... (225V)

2. X DRIVE Assy .............................................. (–300V to 225V)

3. Y DRIVE Assy ............................................................... (355V)

4. SCAN (A) Assy .............................................................. (355V)

5. SCAN (B) Assy ............................................................... (355V)

6. X CONNECTOR (A) Assy ........................... (–300V to 225V)

7. X CONNECTOR (B) Assy ............................ (–300V to 225V)

: Part is Charged Section.
: Part is the High Voltage Generating Points

other than the Charged Section.

SCAN (B)
Assy

Top

Front

X CONNECTOR (A)
Assy

X DRIVE
Assy

X CONNECTOR (B)
Assy

SW POWER SUPPLY
Module

Fig.1 Charged Section and High Voltage Generating Point (Rear View)

5

PDU-50WX2

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 product are used for disassembly.
For the applying amount of lubricants or glue, follow the instructions in this manual.
(In the case of no amount instructions, apply as you think it appropriate.)

2.1 PACKING

PACKING PARTS LIST

•

Mark No. Description Part No.

1 Pad AHA2287
2 Under Board AHB1233
3 Cylinder AHB1234

4

1

1

5

4 Upper Case AHD3108
5 Sleeve AHD3109

6 Under Case Skid AHD3110
7 Protect Sheet AHG1305
8 Mirror Mat AHG1306
9 Packing Frame ANG2497

10 Screw ABA1294

11 Bolt ABA1302

3

8

7

1

8

9

9

11

10

11

10

3

1

2

6

6

2.2 UNDER LAYER SECTION (1)

PDU-50WX2

11

1

8

10

6

5

777

67

9

9

6

6

8

6

2

6

Upper side

11

10

7

10

5
Refer to
"2.11 PANEL CHASSIS ASSY
(AWU1037)".

3

1112

UNDER LAYER SECTION (1) PARTS LIST

•

4

10

11

Mark No. Description Part No. Mark No. Description Part No.

NSP 1 CLAMP A Assy AWZ6650
NSP 2 CLAMP B Assy AWZ6651
NSP 3 CLAMP C Assy AWZ6652
NSP 4 CLAMP D Assy AWZ6653

5 Panel Chassis (50) Assy AWU1037

[Refer to "2.11 PANEL CHASSIS (50) ASSY".]

NSP 9 PCB Support AEC1253

6 Wire Saddle AEC1904
7 Circuit Board Spacer AEC1872
8 Circuit Board Spacer AEC1873

10 Locking Card Spacer AEC1736

11 Screw ABA1301

7

PDU-50WX2

2.3 UNDER LAYER SECTION (2)

11

11 11 11

1

2 3 4

10

11

9

15

2

36 4

10

5 or 6

Upper side

4

4

11

3 2 1

8

7

10

11

3

9

11 11 11

2

7 or 8

1

8

10

UNDER LAYER SECTION (2) PARTS LIST

•

Mark No. Description Part No.

NSP 1 ADR CONNECT A Assy AWZ6626
NSP 2 ADR CONNECT B Assy AWZ6627
NSP 3 ADR CONNECT C Assy AWZ6628
NSP 4 ADR CONNECT D Assy AWZ6629
NSP 5 BRIDGE A Assy AWZ6620

NSP 6 BRIDGE B Assy AWZ6621
NSP 7 BRIDGE C Assy AWZ6622
NSP 8 BRIDGE D Assy AWZ6623

9 ADR RESONANCE Assy AWZ6691

10 Screw ABA1301

11 Screw VBB30P100FNI

PDU-50WX2

9

PDU-50WX2

2.4 UNDER LAYER SECTION (3)

Upper side

1

17152716

18

3

28

12

1212

6

249

21

29

20

7 (Upper Side)
8 (Bottom Side)

11

19

14

13

13

28

12

29

13

27

28

3

11

10

510

10 4

Upper side

PDU-50WX2

UNDER LAYER SECTION (3) PARTS LIST

•

Mark No. Description Part No. Mark No. Description Part No.

1 DIGITAL VIDEO Assy AWV1937
2 • • • • •

3 X DRIVE Assy AWV1901
NSP 4 X CONNECTOR (A) Assy AWZ6618
NSP 5 X CONNECTOR (B) Assy AWZ6619

6 ADR RESONANCE Assy AWZ6691

7 SUB ADDRESS A Assy AWZ6689

8 SUB ADDRESS B Assy AWZ6690
NSP 9 Scan Heat Sink ANH1594

10 Coil Silicone Sheet AEH1048

11 Circuit Board Spacer AEC1873
12 Screw ABZ30P060FMC
13 Screw VBB30P100FNI
14 Screw PMB30P060FNI
15 J201 Flexible Flat Cable ADD1172

16 J202 Flexible Flat Cable ADD1172
17 J209 Flexible Flat Cable ADD1191
18 J204 Flexible Flat Cable ADD1196
19 J210 Flexible Flat Cable ADD1190
20 J211 Flexible Flat Cable ADD1186

21 J212 Flexible Flat Cable ADD1188
22 • • • • •
23 • • • • •
24 Silicone Sheet AEH1039
25 • • • • •

26 • • • • •
27 Insulation Sheet AMR3263
28 Flat Clamp AEC1879

NSP 29 Metal Fittings ANG2464

11

PDU-50WX2

2.5 UNDER LAYER SECTION (4)

7

16

Upper side

6

8

7

19

18

16

20

23

211

2

22

7

68

Upper side

14

13

18

15

10

12

2

15

17

4

18

17

15

5

3

11

10

12

PDU-50WX2

UNDER LAYER SECTION (4) PARTS LIST

•

Mark No. Description Part No. Mark No. Description Part No.

1 DIGITAL VIDEO Assy AWV1937

2 Y DRIVE Assy AWZ6645
NSP 3 SCAN (A) Assy AWZ6617
NSP 4 SCAN (B) Assy AWZ6616

5 FAN SENSOR A Assy AWZ6664

11 Scan IC Spring (L) ABK1026
12 Scan IC Spring (R) ABK1027
13 Scan Insulation Sheet AMR3271
14 Rivet BEC1066
15 Circuit Board Spacer AEC1872

6 Insulation Sheet AMR3263

7 Flat Clamp AEC1879
NSP 8 Metal Fittings ANG2464

9 • • • • •

10 Coil Silicone Sheet AEH1048

16 Screw ABZ30P060FMC
17 Screw PMB30P060FNI
18 Screw VBB30P100FNI
19 J208 Flexible Flat Cable ADD1191
20 J207 Flexible Flat Cable ADD1190

21 J203 Flexible Flat Cable ADD1184
22 J205 Flexible Flat Cable ADD1189
23 J206 Flexible Flat Cable ADD1187

13

PDU-50WX2

2.6 UNDER LAYER SECTION (5)

12

24

15

14

13

27

1 22 16

Y1

2

26

8 10

SA1 SA2

25

K3

3 422

5

29 23

9

28

TE1

D9D8

D16

D1

D18

Y2

D6

D10

D11

D7

D15

D14

D2

D3

D13D12

D17

SA2 SA1

K3

K3

X1
X2

17

19

18

4 22 22223 30 2232 2 16 75 11

14

PDU-50WX2

UNDER LAYER SECTION (5) PARTS LIST

•

Mark No. Description Part No. Mark No. Description Part No.

NSP 1 ADR CONNECT A Assy AWZ6626
NSP 2 ADR CONNECT B Assy AWZ6627
NSP 3 ADR CONNECT C Assy AWZ6628
NSP 4 ADR CONNECT D Assy AWZ6629

5 ADR RESONANCE Assy AWZ6691

NSP 6 BRIDGE A Assy AWZ6620
NSP 7 BRIDGE B Assy AWZ6621
NSP 8 BRIDGE C Assy AWZ6622
NSP 9 BRIDGE D Assy AWZ6623

10 SUB ADDRESS A Assy AWZ6689

11 SUB ADDRESS B Assy AWZ6690
NSP 12 SCAN (A) Assy AWZ6617
NSP 13 SCAN (B) Assy AWZ6616

14 Y DRIVE Assy AWZ6645

15 DIGITAL VIDEO Assy AWV1937

16 THERMAL SENSOR Assy AWZ6664
NSP 17 X CONNECTOR (A) Assy AWZ6618
NSP 18 X CONNECTOR (B) Assy AWZ6619

19 X DRIVE Assy AWV1901

20 • • • • •

21 • • • • •
22 Flat Clamp AEC1879
23 J120 5P Housing Wire ADX2761
24 J110 3P Housing Wire ADX2704
25 J108 8P Housing Wire ADX2701

26 J101 Wire F ADX2726
27 J102 Wire E ADX2694
28 J103 13P Housing Wire ADX2700
29 J116 4P Housing SP Wire ADX2756
30 J109 Wire G ADX2743

31 • • • • •
32 J117 4P Housing SP Wire ADX2756

15

PDU-50WX2

2.7 UPPER LAYER SECTION (1)

21

10

10

10

20

J101

10

10

19

12

15

12

10

20

12

11

6

18

10

10

10
10

10

10

11

12

19

10

1314

18

7

17

9

16

10

10

10

10

2

J201

3

J202

8

R3

10 10

9

R2

1818

R4

R1

J107

J104

4

5

10

16

1

UPPER LAYER SECTION (1) PARTS LIST

•

Mark No. Description Part No.

1 INTERFACE Assy AWZ6665
2 J201 Flexible Flat Cable ADD1172
3 J202 Flexible Flat Cable ADD1172
4 J107 12P Housing Wire ADX2714
5 J104 Wire WF ADX2712

NSP 6 Sub Frame R ANG2500
NSP 7 Sub Frame L ANG2499
NSP 8 Front Chassis H (W) ANA1679
NSP 9 Card Spacer AEC1902

10 Screw ABA1294

PDU-50WX2

NSP 11 Front Chassis V ANA1661

12 V Cushion AED1205

13 Module Label AAL2360

14 Serial Sheet AAX2609

15 Power Sheet AMR3291

16 Rivet BEC1066

17 Front Chassis H ANA1683

18 Screw ABA1283

19 FPC Cushion AEB1370

20 Card Corner Holder BEC1144

21 Niplocker BEC1136

17

PDU-50WX2

2.8 UPPER LAYER SECTION (2)

5

6

5

Note : This product does not include this Terminal Panel.

VM1

J120

J101

J104

P6

P1

P2

P5

J102

J103

P4

P3

J105

4

3

100V

SW101

200V

1

18

UPPER LAYER SECTION (2) PARTS LIST

•

Mark No. Description Part No.

PDU-50WX2

1 SW Power Supply Module AXY1055

3 Fuse (FU101 : 10A) AEK1071

2 • • • • •

4 J105 Housing Wire ADX2715
5 Screw AMZ30P060FZK

6 Nyron Binder AEC-093

19

PDU-50WX2

2.9 FRONT SECTION

1

3

2 2

1

FRONT SECTION PARTS LIST

•

Mark No. Description Part No.

1 Panel Cushion H AED1198
2 Panel Cushion V AED1199

NSP 4 Panel Holder 50 ANG2508

3 Front Protect Panel Assy AMR3304

5 Screw ABZ30P050FZK

5

5

4

5 5

4

5

4

5

4

44

20

PDU-50WX2

2.10 PDP SERVICE ASSY 503 (AWU1040)

PDP Service Assy 503 (AWU1040) consists of the following parts.

PARTS LIST

•

Mark No. Description Part No. Mark No. Description Part No.

NSP Front Chassis V ANA1661

Panel Chassis (50) Assy AWU1037

NSP Front CHassis H (W) ANA1679
NSP Front Chassis H ANA1683
NSP Sub Frame L ANG2499

NSP Sub Frame R ANG2500

Scan IC Spring (L) ABK1026
Scan IC Spring (R) ABK1027

NSP Metal Fitting ANG2464

FPC Cushion 50 AEB1370

NSP PCB Spacer AEC1253

Locking Card Spacer AEC1736
Circuit Board Spacer AEC1872
Circuit Board Spacer AEC1873
Spacer AEC1896

NSP Card Spacer AEC1902

Wire Saddle AEC1904
Panel Cushion H AED1198
Panel Cushion V AED1199
V Cushion AED1205

2.11 PANEL CHASSIS (50) ASSY (AWU1037)

Panel Chassis (50) Assy (AWU1037) consists of the following parts.

Insullation Sheet AMR3263
Scan Insullation Sheet AMR3271
Niplocker BEC1136
Card Corner Holder BEC1144
Screw ABA1283

Screw ABA1294
Screw ABZ30P060FMC
Screw BMZ30P060FMC
Screw PMB30P060FNI
Screw VBB30P100FNI

Bolt ABA1259
Corner Pad AHA2203
Corner Pad AHA2204
Upper Carton AHD3119
Under Carton AHD3120

Packing Sheet AHG1291
Fitting Board AHK1012
Washer WB80FZB

PARTS LIST

•

Mark No. Description Part No.

NSP SCAN FUKUGO ASSY AWV1898 ∗

NSP Address Module (IC1 - IC40) AXF1110
NSP FPC (0003) ADY1065
NSP FPC (J0001) ADY1066

NSP Chassis Assy ANA1696

NSP Plasma Panel Assy AAV1238

ADDRESS FUKUGO ASSY AWV1900 ∗

Pin Grommet AEC1015
Card Spacer AEC1889
Scan Silicone Sheet AEH1040

Screw VBB30P100FNI

LIST OF ASSY

•

Mark No. Description Part No.

NSP SCAN FUKUGO ASSY AWV1898
NSP SCAN (A) ASSY AWZ6616
NSP SCAN (B) ASSY AWZ6617
NSP X CONNECTOR (A) ASSY AWZ6618
NSP X CONNECTOR (B) ASSY AWZ6619
NSP BRIDGE A ASSY AWZ6620
NSP BRIDGE B ASSY AWZ6621
NSP BRIDGE C ASSY AWZ6622
NSP BRIDGE D ASSY AWZ6623
NSP CLAMP A ASSY AWZ6650
NSP CLAMP B ASSY AWZ6651
NSP CLAMP C ASSY AWZ6652
NSP CLAMP D ASSY AWZ6653

NSP ADR CONNECT A ASSY AWZ6626
NSP ADR CONNECT B ASSY AWZ6627
NSP ADR CONNECT C ASSY AWZ6628
NSP ADR CONNECT D ASSY AWZ6629

ADDRESS FUKUGO ASSY AWV1900

ADR RESONANCE ASSY AWZ6630

21

PDU-50WX2

Caution in Replacement of Panel Chassis (50) Assy (AWU1040)

Please order the Panel Chassis (50) Assy (AWU1040) when replacing the Chassis block.
Panel Chassis (50) Assy is all common use parts of for business, public use and module.
Supply it by the state that installed Circuit Board Spacer (AEC1872) and Wire Saddle (AEC1878) as follows.
Therefore need to remove it in accordance with model.

Confirm character carved a seal near the parts, and remove it.

P : Public exclusive use
W : Module exclusive use
PW : Common use of public use and module

∗ In case of this unit, the parts that "P" is marked removes all.

Panel Chassis (50) Assy (AWU1040)

Wire Saddle
(AEC1878)
(There is marking of "P" nearby.)

Circuit Board Spacer
(AEC1872)

∗ In case of this unit, the following Wire Saddle (AEC1904) removes all.

Panel Chassis (50) Assy (AWU1040)

Wire Saddle
(AEC1904)

Wire Saddle
(AEC1904)

Circuit Board Spacer
(AEC1872)

Wire Saddle
(AEC1904)

22

PDU-50WX2

23

1

B

V

C

T

U

P

S

23

PDU-50WX2

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

DRIVERICDRIVER

IC

DRIVERICDRIVER

IC

DRIVERICDRIVERICDRIVERICDRIVER

IC

DRIVERICDRIVER

IC

DRIVERICDRIVERICDRIVERICDRIVERICDRIVERICDRIVER

IC

DRIVER

IC

4

DRIVER

IC

DRIVERICDRIVER

IC

DRIVER

IC

A

CLAMP A
ASSY

B

C

CLA1

CLAMP

VADR2

ADDRESS CONNECT A
ASSY

SCAN A ASSY
(UPPER)

IC5

VCC_VH

IC6201

ADD

PSUS

SEL_PULSE

IC5

VCC_VH

IC6202

ADD

SEL_PULSE

IC5

VCC_VH

IC6203

ADD

SEL_PULSE

IC5

VCC_VH

IC6204

ADD

SEL_PULSE

IC5

VCC_VH

IC6205

ADD

SEL_PULSE

IC5

VCC_VH

IC6206

ADD

SEL_PULSE

IC5

VCC_VH

IC6001

ADD

SCAN

SEL_PULSE

IC5

VCC_VH

IC6002

ADD

SEL_PULSE

IC5

VCC_VH

IC6003

ADD

SEL_PULSE

IC5

VCC_VH

IC6004

ADD

SEL_PULSE

IC5

VCC_VH

IC6005

ADD

SEL_PULSE

IC5

VCC_VH

IC6006

ADD

SEL_PULSE

SCAN B ASSY
(LOWER)

SCAN

PSUS

Y4

Y3

Y5

PSUS

Y6

AA1

PSU

VCC_VH

VCP

Y-SUS
MASK
BLOCK

V_IC5V

VCP

Y-SUS
MASK

BLOCK

V_IC5V

VCC_VH

Scan Signal

CLK/LE

FAN SENSOR ASSY

VC_VF-

VC_VF+

+5V VSUS+15V

IC2206

Pulse Module

+15V

VSUS

+RESET Block

+5V VSUS+15V

IC2204

Pulse Module

+15V

SOFT-D

BLOCK

Y DRIVE ASSY

V_OFSVC_VF+

VC_VF-

OFFSET

BLOCK

V_IC5V

Photo Coupler

BLOCK

V_OFS

BUFFER IC

TE1

VCC_VH

BLOCK

Signal

Drive
Signal

IC6501

DC/DC
CONV

Drive

V_IC5V

LOGIC

BLOCK

CLK/LE

IC6601

BUFFER IC

ADR RESONANCE
ASSY

+13.5V

+6.5V

P1

R2

INTERFASE ASSY

BA[0:9]
BB[0:9]
GA[0:9]
GB[0:9]

RA[0:9]
RB[0:9]

HD, VD, DE
CLK
POWER, MUTE, DITHER
MAX_PLS, LIN_PIC
LED_R, LED_G

TXDO
RXDO

R3

+15V
+12V

-9V

T101

T102

BUFFER

IC4001

P2

RGB 10bit

VADR2

Q6706 to Q6711

VADR_GEN

K2

+60

SAA1 SAA2

Switching

Q115

Switching

Switching

Q119

Q117

T103

VADR

P5

CN4007

LATCH
BLOCK

IC4002-IC4009

CN4009 CN4016

K1

SAA3

ADR_CO

POWER SU

Switching

T104

VSUS

DE

HD

VD

CLK

3VSTB5V

VS

P6

CLAMP

BRIDGE A
ASSY

D9 D16

+12

V+3V

IC1703

XY DRV SEQUENCE

PATTERN GEN.

V+2V_I

C

IC1401 (IC31

TXD/RX

D12

VADR2

ADDRESS CONNECT B
ASSY

DC-DC CONVERTER

MODULE

DIGITAL ASSY

V+3V

X180

CLK GEN

IC1301(IC31 L)

SUB-FILD CONV.

for LEFT with FILD MEM.

IC119

FLASH

ROM

IC1101

PANEL UCOM

D13

V+5V_

KL_U0:2

XDRV_SIG
ADL_LE_UL
ADL_LE_DL

V+3V_

V+3V_

V+3V_

D17

V+3V

V+2V

V+2V_IC

TXD0/RXD0

RE

LED_SIG

I2

BA2:9
BB2:9

GA2:9

GB2:9

RA2:9
RB2:9

V+2V

V+3V

V+5V_ST

AB1

D10

D11

D7

D4

D15D14

D2

D3

VADR2

BGA1

D8

+12V

D1

V+5V_STB

12V

Y1

D18D6

+5V

Y2

TEMP

For RIGHT with FILD MEM.

MODULE

YDRV_SIG

SCAN_SIG

V+3V_I

SUB-FILD CONV.

ADLCLK_DR

V+5V_STB

IC120

UCOM

D

CLAMP C ASSY

CLC1

CLAMP

ADDRESS CONNECT D
ASSY

VADR2

DRIVERICDRIVERICDRIVERICDRIVERICDRIVERICDRIVER

AD1

IC

CLK/LE

IC6901

BUFFER IC

DRIVERICDRIVER

24

1234

SA

ADR_C

BRIDGE C
ASSY

VADR2

BGC1

CLAMP

ADDRESS CONNECT C
ASSY

VADR2

SAB2

K2

ADR RESONANCE AS

VADR2

AC1

CLK/LE

IC6881

BUFFER IC

SAB3

K1

Q6706 to Q6711

VADR_GEN

+60

DRIVERICDRIVER

IC

IC

DRIVERICDRIVERICDRIVER

DRIVER

IC

IC

DRIVERICDRIVER

IC

DRIVERICDRIVERICDRIVERICDRIVER

IC

DRIVER

IC

5

3.1 BLOCK DIAGRAM

3.1.1 OVERALL BLOCK DIAGRAM

R DRIVER

IC

DRIVERICDRIVER

IC

DRIVERICDRIVER

IC

DRIVERICDRIVER

678

PDU-50WX2

DRIVER

IC

DRIVER

IC

IC

DRIVERICDRIVER

IC

DRIVERICDRIVER

IC

DRIVERICDRIVER

IC

DRIVERICDRIVER

IC

DRIVERICDRIVER

IC

DRIVERICDRIVER

IC

Q6706 to Q6711

2

+60

SAA1 SAA2

Switching

Q119

T103

VADR

H

K

IC4002-IC4009

TB5V

VADR_GEN

P5

CN4016

ADR_CO

K3

SUB ADDRESS A
ASSY

SAA3

K1

POWER SUPPLY MODULE

M111

Q122

Switching

T104

T105

VSUS_CONT

VSUS

M114

P6

DE

HD

VD

VD DELAY

BLOCK
IC4012

CLK CLK

CLK DELAY

BLOCK

IC4010

3V

IC4011

LED

D4001

VADR2

RC101

LIVE

NEAUTRAL

PRIMARY

T105

SECONDARY

STB5V

POWER(RELAY)

P3 P4

CN4010

BUFFER

IC4001

IC3200

Pulse

Module

+Reset

Pulse
Block

IC3201

Pulse

Module

CLK/LE

ADDRESS CONNECT D
ASSY

+15V+5V

VCP

X_SUS

MASK

+15V

VCP

+15V+5VV_SUS

X_SUS

MASK

IC6901

BUFFER IC

P_SUS

X3

P_SUS

X4

VADR2

CLB1

CLAMP B
ASSY

X CONNECTOR

A ASSY

X CONNECTOR

B ASSY

CLAMP

A

B

C

CLK/LE

IC6801

BUFFER IC

AC1

RL101

3V,STB5V

ADDRESS CONNECT C
ASSY

VM2
V MID CLAMP U
V MID CLAMP L

VM1

AC IN

P7

R4

VADR2 VADR2

CLAM

BGB1

BRIDGE B
ASSY

AD1

V_RN

V_SUS

DC/DC
CONV

BLOCK

Drive
Signal

X 1

+5V

LOGIC

BLOCK

Drive

Signal

V_RN

X2

X DRIVE ASSY

6.5V,15V

CN4005

R1

SAB2

SAB3

2

K1

Q6706 to Q6711

VADR_GEN

ADR RESONANCE ASSY

ER DRIVER

IC

ASSY

+60

K3

DRIVERICDRIVER

IC

AB1

VADR2

DRIVERICDRIVERICDRIVERICDRIVERICDRIVERICDRIVER

SUB ADDRESS B

SAB1

ADR_C

Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".

5

ADDRESS CONNECT B ASSY

IC6601

BUFFER IC

CLK/LE

IC

6

BRIDGE D ASSY

BGD1

CLAMP

VADR2 VADR2

DRIVERICDRIVERICDRIVERICDRIVERICDRIVERICDRIVER

ADDRESS CONNECT A ASSY

IC

7

AA1

DRIVERICDRIVER

CLAMP D ASSY

CLD1

IC6501

BUFFER IC

CLK/LE

IC

DRIVERICDRIVER

VADR2

IC

DRIVERICDRIVER

D

CLAM

IC

25

8

1

PDU-50WX2

3.1.2 DIGITAL VIDEO ASSY

A

23

4

INTERFACE
ASSY

RGB 2 phase 10 bit

VD

HD

DE

CLK

B

RXDO

PM_ST
PN_MUTE
MAX_PLS

DITHER

MOD_SW

POWER
LIN_PIC

TXDO
LED_G
LED_R

C

DIGITAL VIDEO ASSY

Reflesh-rate

Det.

AND

CN1201

EXT_RXD
EXT_TXD

RXDO

TXDO

WE_PN

3.3V

Line

Buffer

HD

RESET

EXD RXD
EXD TXD

RESET

Address BUS

Control Signal

3.3V

IC1191

Flash ROM

3.3V

VD

Reset IC

Data BUS

Panel Microcomputer

RST PU

(M30624FGAFP)

Module Microcomputer

TEMP1

THERMAL

SENSOR

Assy

3.3V

2.5V

APLR

VD 31

IC1101

(HD64F2328VF)

3.3V → 5.0V5.0V → 3.3VReset IC

IC1207

AC_OFF

PD_TRIGGER

IC1301 (IC31 L)

(PD6358)

DRAM

IC1401 (IC31 R)

(PD6358)

DRAM

3.3V

RXD

BUSY

REQ_PU

RST2

IC1703 (IC23)

(PE5064)

Address

Resonance

STOPB

Control

PC_VIDEO

ADR_K_EMG

AND

APD MUTE

STB5V

RELAY

Address Data

Address Data

Sustain
Control

5V

OR

ADR K PD U

ADR K PD D

Panel W/B ADJ.

Hour/Pulse meter

DEW DET

STB5V

ADR PD

IIC BUS

EEP

ROM

DCC_PD

5V

OR

DIG. ADR. PD

SW POWER SUPPLY Module

ADR CONNECT A - D

Assy (Left section)

ADR CONNECT A - D

Assy (Right section)

Y DRIVE Assy

X DRIVE Assy

RESONANCE

Assy

pn

5V

3.3V

2.5V

DC/DC

Converter

Block

12V

STB5V

STB5V

D

26

1234

23

21

5

7

9

11

13

15

17

19

PN_MUTE

XNR-U

XSUS-B

XSUS-U

XSUS-D

XSUS-G

XSUS-MSK

XCP-MSK

XNR-D1

XNR-D2

CN3001

X2

1

2

3

4

8

11

CN3101

X1

XNR_U

XNR_U

2

4

5

3

6

6

5

2

3

4

9

IC3004

TC74ACT540FT

IC3008

TC74ACT541FT

18

17

14

14

15

18

17

16

16

15

1

5

2

3

4

6

8

9

7

10

IC3008

PE1012A

20

23

22

21

19

17

16

18

15

2

3

4

5

7

8

6

9

IC3001

TC74ACT541FT

IC3102

HCPL-M611

IC3101

TC74ACT541FT

IC3200

STK795-460

Pulse Module

IC3201

STK795-460

Pulse Module

T3701

VRN D-D CONV.

XCP-MSK

XSUS-MSK

VCP

PLD

SUSOUT A

37-40

29,30

K3105

PSUS

K3107

IC3103,IC3104

TND301S

Q3103,

Q3107

Q3104,

Q3109

Q3105,

Q3124

Q3106,

Q3125

SUSOUT B

37-40

29,30

K3106

IC3106,IC3107

TND301S

Q3110,

Q3114

Q3111,

Q3115

Q3112,

Q3126

Q3113,

Q3127

To

X CONNECTOR

ASSY

IC3110

TND301S

IC3113

TND301S

charge pump

circuit

From DIGITAL VIDEO ASSY

Photo

coupler

2-9 11-18

+15V

DGND

XDRIVE_PD

XDC_DC_PD

VSUS

SUSGND

SUSGND

SUSGND

P.D.

DET.

18

17

16

15

13

12

14

11

14

16

18

20

14

16

18

20

VSUS 225V

VRN UVP

VRN OVP

Q3116

Q3120

Q3122

Q3128

XNR P.D.

DET.

XNR-D1

XNR-D2

VRN-300V

XDRIVE P.D

3.1.3 X DRIVE ASSY

1

234

PDU-50WX2

A

B

C

1

2

3

D

27

4

1

PDU-50WX2

3.1.4 Y DRIVE ASSY

23

4

A

CLR

27

CLK

25

OC1

LE

AB
SI1
SI2

30
31
40
42
43
45

IC2001

TC74ACT541FT

OC2-1

B

33
24
19
21

9
10
12
18
13
16
15
22
46

Y2

1

2

3

4

5

6

7
10
11
13
14

TC74ACT541FT

TC74ACT540FT

Vsus

D. GND

SUSGND

OC2-2

PN_MUTE

YPR-U1
YPR-U2
YSUS-B
YSUS-U
YSUS-D

YOFS

YSUS-G

C

YCP-MSK

YSUS-MSK

YSOFT-D

DEW_DET

+15V

D. GND

+13.5V

-9V

YDRIVE_PD

D

YDC_DC_PD

VOFS_ADJ

VSUS

VSUS
SUSGND
SUSGND

28

1234

OC2-2

IC2005

IC2007

Q2102

Photo Coupler

Photo Coupler

Photo Coupler

Photo Coupler

Photo Coupler

Photo Coupler

Photo Coupler

Photo Coupler

IC2501,IC2502,
IC2505,IC2510,
IC2512,IC2513,
IC2514,IC2525,

HCPL-M611

Photo Coupler

IC2516

HCPL-M611

SUS muteDET.

circuit

IC2006

PE1013

Dew DET.

circuit

P.D.
DET.

IC5V UVP

VOFS UVP

VOFS OVP

VH UVP

VH OVP

IC2504

TC74ACT540FT

IC2506

TC74ACT540FT

IC2004

TC74ACT541FT

IC2005

TC74ACT541FT

IC5V, VF

D-D CONV.

VOFS D-D

CONV.

VH D-D CONV.

IC5V

IC2503

TC74ACT540FT

+13.5V

-9V

YPR-U1

YOFS

IC5V

VF+
VF-

VOFS

VH

VH

YCP-MSK

YPR-U2

YSUS-MSK

YSOFT-D

Y5

VH

Y3

Pulse Module

14

(STK795-460)

16

18

20

Pulse Module

14

(STK795-460)

16

18

20

charge pump

To SCAN ASSY
(Lower)

CN2501CN2502

To SCAN ASSY
(Upper)

IC2206

IC2214

circuit

Photo Coupler

IC2202

HCPL-M611

Photo Coupler

IC2208

HCPL-M611

5

678

PDU-50WX2

A

SUSOUT A

37-40

29,30

5V
15V

Vsus

SUSOUT B

37-40

29,30

5V
15V

Vsus

YPR-U1
YPR-U2

K2203

K2212

VCP

IC2203

TND301S

IC2212

TND301S

IC2213

TND301S

IC2216

TND301S

IC2217

TND301S

VSUS

Q2218

Q2220

Q2226

Q2232

Q2204

Q2219

Q2221

Q2217

Q2233

Q2215

Q2228

Q2227

Q2216

Q2205

K2220

PSUS

B

TO

Y CONNECTOR

ASS'Y

C

IC2201

TC74ACT541FT

2-9

5

11-18

IC2204

TND301S

IC2210

TND301S

6

SUSGND

Q2210

Q2211

Q2212

PSUS

D

29

7

8