Pioneer XWHTP-550 Service manual

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 2005

÷ Ask user to bring the Transmitter and Wireless Speaker pair set together when servicing.

SX-315/KUCXCN

HTP-4600/KUCXCN

RRV3071

S-FCRW4500/XTW/UC

XW-HTP550/KUCXJ

RRV3112

AUDIO MULTI-CHANNEL RECEIVER

HOME THEATER SYSTEM

SPEAKER SYSTEM

DIGITAL WIRELESS SPEAKER SYSTEM

This manual

Component System

Service Manual Remarks

RRV3090

SX-315/KUCXCN

HTP-4550DVR/KUCXCN

RRV3071

S-FCW4550/XTW/UC

XW-HTP550/KUCXJ

RRV3118

AUDIO MULTI-CHANNEL RECEIVER

HOME THEATER SYSTEM

SPEAKER SYSTEM

DIGITAL WIRELESS SPEAKER SYSTEM

This manual

Component System

Service Manual Remarks

RRV3090

DVR-231-AV/KUXV/CA

DVD RECORDER

RRV3124

DIGITAL WIRELESS SPEAKER

TRANSMITTER

CHANNEL

1

2

3

4

ORDER NO.

RRV3090

XW-HTP550

DIGITAL WIRELESS SPEAKER SYSTEM

XW-HTP550

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

Model Type Power Requirement Remarks

XW-HTP550 KUCXJ AC120V

For details, refer to "Important Check Points for Good Servicing".

T-ZZV FEB. 2005 printed in Japan

1234

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 contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to

B

cause cancer, birth defects or other reproductive harm.

Health & Safety Code Section 25249.6 – Proposition 65

NOTICE

Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement

parts must be of identical designation.

REMARQUE

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.

C

(FOR USA MODEL ONLY)

1. SAFETY PRECAUTIONS

The following check should be performed for the
continued protection of the customer and service
technician.

LEAKAGE CURRENT CHECK

Measure leakage current to a known earth ground
(water pipe, conduit, etc.) by connecting a leakage
current tester such as Simpson Model 229-2 or

D

equivalent between the earth ground and all exposed
metal parts of the appliance (input/output terminals,
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.

Leakage
current

E

Device
under
test

Also test with
plug reversed
(Using AC adapter
plug as required)

Test all
exposed metal
surfaces

AC Leakage Test

tester

Reading should
not be above

0.5 mA

Earth
ground

ANY MEASUREMENTS NOT WITHIN THE
LIMITS OUTLINED ABOVE ARE INDICATIVE
OF A POTENTIAL SHOCK HAZARD AND
MUST BE CORRECTED BEFORE RETURN­ING 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 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 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
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

F

2

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[Important Check Points for Good Servicing]

In this manual, procedures that must be performed during repairs are marked with the below symbol.
Please be sure to confirm and follow these procedures.

1. Product safety

Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by
following the safety instructions described in this manual.

1 Use specified parts for repair.

Use genuine parts. Be sure to use important parts for safety.

2 Do not perform modifications without proper instructions.

Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as
radio/TV interference and foreign noise.

3 Make sure the soldering of repaired locations is properly performed.

When you solder while repairing, please be sure that there are no cold solder and other debris.
Soldering should be finished with the proper quantity. (Refer to the example)

4 Make sure the screws are tightly fastened.

Please be sure that all screws are fastened, and that there are no loose screws.

5 Make sure each connectors are correctly inserted.

Please be sure that all connectors are inserted, and that there are no imperfect insertion.

6 Make sure the wiring cables are set to their original state.

Please replace the wiring and cables to the original state after repairs.
In addition, be sure that there are no pinched wires, etc.

7 Make sure screws and soldering scraps do not remain inside the product.

Please check that neither solder debris nor screws remain inside the product.

8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.

Damaged power cords may lead to fire accidents, so please be sure that there are no damages.
If you find a damaged power cord, please exchange it with a suitable one.

9 There should be no spark traces or similar marks on the power plug.

When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure
connections and suitable usage. Please exchange the power cord if necessary.

0 Safe environment should be secured during servicing.

When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries.
Please pay attention to your surroundings and repair safely.

A

B

C

D

2. Adjustments

To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.
Adjustments should be performed in accordance with the procedures/instructions described in this manual.

3. Lubricants, Glues, and Replacement parts

Use grease and adhesives that are equal to the specified substance.
Make sure the proper amount is applied.

4. Cleaning

For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper
cleaning should be performed to restore their performances.

5. Shipping mode and Shipping screws

To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be
installed before shipment. Please be sure to follow this method especially if it is specified in this manual.

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3

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CONTENTS

SAFETY INFORMATION ..................................................................................................................................... 2

1. SPECIFICATIONS ............................................................................................................................................ 5

2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 6

A

B

C

2.1 PACKING ................................................................................................................................................... 6

2.2 TRANSMITTER SECTION......................................................................................................................... 8

2.3 WIRELESS SPEAKER SECTION............................................................................................................ 10

3. BLOCK DIAGRAM and SCHEMATIC DIAGRAM ........................................................................................... 12

3.1 OVERALL BLOCK DIAGRAM.................................................................................................................. 12

3.2 OVERALL WIRING DIAGRAM................................................................................................................. 14

3.3 MAIN, LED, PRIMARY and BINDER ASSYS........................................................................................... 16

3.4 TX ASSY .................................................................................................................................................. 18

3.5 RX ASSY ................................................................................................................................................. 20

4. PCB CONNECTION DIAGRAM ..................................................................................................................... 22

4.1 MAIN and BINDER ASSYS ..................................................................................................................... 23

4.2 PRIMARY ASSY ...................................................................................................................................... 25

4.3 TX ASSY .................................................................................................................................................. 27

4.4 LED and RX ASSYS ................................................................................................................................ 29

5. PCB PARTS LIST ........................................................................................................................................... 31

6. ADJUSTMENT ............................................................................................................................................... 32

7. GENERAL INFORMATION............................................................................................................................. 33

7.1 DIAGNOSIS ............................................................................................................................................. 33

7.1.1 DIAGNOSIS NOTE ............................................................................................................................... 33

7.1.2 TROUBLE SHOOTING ......................................................................................................................... 35

7.1.3 DIAGNOSIS OF TX and RX MODULES ............................................................................................... 38

7.1.4 DIAGNOSIS OF THE AMPLIFIER SECTION ....................................................................................... 39

7.1.5 PROTECTION CIRCUIT....................................................................................................................... 40

7.1.6 DISASSEMBLY ..................................................................................................................................... 41

7.2 IC ............................................................................................................................................................. 43

8. PANEL FACILITIES ........................................................................................................................................ 45

D

E

F

4

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1. SPECIFICATIONS

General

Digital Wireless Speaker System
(Transmitter/Wireless speaker)

Transmitter

AC adaptor

Power requirements . . . . . . . . AC 120V, 60Hz

Power consumption . . . . . . . . . . . . . . . . . . 8W

Rated output . . . . . . . . . . . . . . . . . 12V/300mA

Power consumption (without AC

adaptor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2W

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . RCA jack

Weight . . . . . . . . . . . . . . . . . . . . . . . 0.3 kg / 11 oz.

Dimensions . . . . . . . 166(W) x 56(H) x 112(D) mm

9/16(W) x 23/16(H) x 47/16(D)in.

6

Wireless speaker

Power requirements . . . . . . . . . . . . AC 120V, 60Hz

Power consumption . . . . . . . . . . . . . . . . . . . . 24W

Amplifier characteristics

Continuous average power output of 7.5
watts* per channel, min., at 4 ohms, from
120Hz to 20,000 Hz with no more than 1.0
% harmonic distortion.

Continuous power output . . . . . . . . . . . . . . . 7.5W/ch

(120Hz–20kHz, 1.0%, 4Ω)

Maximum power output . . . . . . . . . . . . . . . 10W/ch

RMS (1kHz, THD10%, 4Ω)

Music power output . . . . . . . . . . . . . . . . . . 18W/ch

(DIN MUSIC, 10%, 4Ω)

* Measured pursuant to the Federal Trade
Commission’s Trade Regulation rule on Power
Output Claims for Amplifiers.

Speaker unit. . . . . . . . . . . . . . . 7cm cone type x 2

Weight . . . . . . . . . . . . . . . . . . . 2.9 kg / 6 lbs 6 oz

Dimensions

. . . . . . . . . . . . . . 461.5(W) x 176.5(H) x 95(D) mm

3

/16(W) x 615/16(H) x 33/4(D)in.

18

A

B

C

Accessories

Accessoriess

AC adaptor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

RCA stereo cord . . . . . . . . . . . . . . . . . . . . . . . 1

Power cord. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Warranty card . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Operating instructions

. . . . . . . . . . . . . . . . . . . 1

Note

•

The specifications and design of this
product are subject to change without
notice, due to improvement.

• RCA stereo cord (XDE3045)

• Power cord (ADG7021)

• AC adaptor (AWR7006)

• Operating instructions

• Warranty card

D

E

F

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2. EXPLODED VIEWS AND PARTS LIST

NOTES:

A

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

B

C

2

6

Transmitter

9

7

3

1

10

8

D

5

E

4

10

7

11

F

6

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PACKING parts List

No. Description Part No.

Mark

1Power Cord ADG7021

2AC Adaptor AWR7006

3 RCA Stereo Cord XDE3045

4 Operating Instructions ARE7353

(English, French)

NSP 5 Warranty Card ARY7045

NSP 6 Literature Bag AHG1180

7Polyethylene Bag VHL1051

8Packing Sheet AHG7015

9 Accessory Box NW AHB7104

10 Pad (L/R) AHA7440

11 Packing Case AHD8338

A

B

C

D

E

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7

7

8

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2.2 TRANSMITTER SECTION

A

B

13

3

4

5

G

C

12

9

11

1

D

11

6

E

8

11

11

2

E

11

7

7

10

F

8

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11

*

5678

TRANSMITTER SECTION parts List

No. Description Part No.

Mark

1 TX Assy AWU8260

2 TX Module AXF7015

3Top Panel AAK8283

4 CS Lens AAK8133

5 CS Button T AAD7729

6 Chassis T ANA7157

7 Leg AEB7090

NSP 8 PCB Spacer(3x6) AEC7156

9 PCB Spacer AEC7546

NSP 10 Name Label T (KU) AAL7389

A

11 TORX Screw *

12 Screw with Washer ABA7124

NSP 13 Getter KU AAX8066

Use TORX driver GGK1028 or GGK1071.

ABA7111

B

C

D

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9

7

8

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2.3 WIRELESS SPEAKER SECTION

A

24

33

H

4

B

B

D

F

33

5

34

6

19

A

33

7

13

Lubricating Oil
GYA-009

37

18

10

C

D

29

A

1

NON-CONTACT

SIDE

CONTACT SIDE

A

33

13

C

33

35

34

14

33

31

33

22

33

36

27

3

36

30

33

36

26

20

35

C

8

21

36

33

16

B

2

9

B

28

11

36

15

23

16

35

D

12

D

36

11

E

36

F

C

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WIRELESS SPEAKER SECTION parts List

No. Description Part No.

Mark

1 MAIN Assy AWU8261

2 LED Assy AWU8263

3 PRIMARY Assy AWU8266

4 BINDER Assy AWU8264

5 RX Assy AWU8262

6 RX Module AXF7016

7Power Transformer ATS7388

8 Fuse (FU1 : 1.25A) REK1108

9 5P FFC Cable (J2) ADD7505

10 4P Cable Assy (J1) ADX7470

A

11 Speaker B70AC50-53C

12 Chassis ANA7176

13 FET Bracket A ANG7432

14 Heat Sink ANH7178

15 Spring K ABH7239

16 Rubber Leg AEB7353

17 • • • • • • •

18 Mini Clamp AEC7373

19 PCB Spacer AEC7546

20 Baffle L AMD7015

21 Baffle R AMD7016

22 Operation Panel AAK8260

23 PWR Button Assy AXG7245

24 Grille Assy AXG7254

25 Name Plate 36 AAM7013

26 Rear Case Assy AXG7255

27 Cover AAK8282

NSP 28 Angle B

NSP 29 Angle A

NSP 30 Name Label (KU) AAL7388

31 ICP Label XAX3121

32 • • • • • • •

33 Screw BBZ30P080FNI

34 Screw BBZ40P060FTC

35 Screw BPZ30P080FTC

B

C

D

36 Screw BPZ40P100FNI

37 Lubricating Oil GYA-009

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3. BLOCK DIAGRAM and SCHEMATIC DIAGRAM

3.1 OVERALL BLOCK DIAGRAM

A

TRANSMITTER SECTION

TX ASSY

E

Ch.1 Ch.2 Ch.3 Ch.4

IC8101

NJM12904M

JA8202

L

INPUT

R

Analog Audio

B

JA8001

DC IN

12V

3

5

IC8051

NJM2374AM

5V REG.

1 2

1

ALC

7

V+5RF

L Ch

R Ch

VD+5 VA+5

D8501-D8504

Q8501-Q8504

C

RECEIVER SECTION

RX MODULE

H

D

E

F

EEPROM

Ch. select

ANT2

LED ASSY

B

12

10

8

7

6

2

1

CN8203

(12P)

TUNED

POWER

ID Learn

CN5902

CN5901

V+5RF

(5P)

(5P)

ID Learn

F

1 2 3 4

LEDP

GNDD

LEDTUN2

LEDTUN1

1 2 3 4

IC8003

3

REG 5V

NJM78M05FA

RX ASSY

5

GNDD

5

1

VD+9

12

11

8

6

CN8204

(12P)

V+9

V+9

LOUT

ROUT

RF IC + PA

BBIC

DAC

3.3V REG.3.3V REG.

2.8V REG.

ROUT

12

LOUT

10

ID Learn

8

ID State

7

Sync

6

V+5RF

2

V+5RF

1

12

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5678

A

TX MODULE

G

CN8201

(12P)

1

2

5

6

7

8

9

11

12

V+5RF

V+5RF

Ch1

Ch2

Ch3

Ch4

Ch

RIN

LIN

1

2

5

6

7

8

9

11

12

ANT1

+5V

Ch1

Ch2

Ch3

Ch4

3.3V REG.

3.3V REG.

2.8V REG.

B

BBIC

Ch

ADC

RF IC + PA

EEPROM

C

V+9RF

1

2

5

7

CN3701

(12P)

Lch

Rch

MAIN ASSY

A

IC3301

BA4558

OP AMP

X0

3

Y0

5

V+9RF

VA+9

8

4

VD+9

X (Lch)

Y (Rch)

VA+9

1

7

IC15

3

REG 9V

NJM78M09FA

VPRE9

1

INSIDE

SPEAKER

D

E

F

SP

PROTECT

Q3451 Q3452

AN1CN2

NEUTRAL

LIVE

CN3401

(5P)

2

1

5

L +

4

L -

1

R +

2

R-

AC IN

IC3302

LA4663

Power IC

L IN

4

R IN

2

VP(+B)

8

POWER

+B

RELAY

RY3301

+B

D13

POWER Supply

D11

D12

D17

CN11

MAIN

1

1

MAIN

2

2

3

3

4

4

T1

POWER

TRANSFORMER

VCC2

VCC1

7

5 6

Q3511

GND

RELAY
DRIVE

Q3455

Q3454 Q3453

PRIMARY ASSY

C

1

1

2

2

MUTE

L +OUT

9

L –OUT

11

R +OUT

14

R –OUT

12

Relay Control

FU1

S1

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3.2 OVERALL WIRING DIAGRAM

Transmitter Section

A

WIRELESS

IN

DC IN

B

12V

Reciever Section

C

SR+ (L+)

SR- (L-)

SL- (R-)

TO SPEAKER

SL+ (R+)

CN8201

AKP7200-

V+5RF

1

V+5RF

L

E

R

1ch 2ch 3ch 4ch

CN3401

B5P-VH

5

4

NC

3

2

1

TX ASSY
(AWU8260)

channel

2

RFGND

3

RFGND

4

Ch1

5

Ch2

6

Ch3

7

Ch4

8

Ch

9

GNDA

10

AIR

11

AIL

12

A

1

2

3

4

5

6

7

8

9

10

11

12

G

TX MODULE
(AXF7015)

No circuit diagram

MAIN ASSY (AWU8261)

D

C

E

AC CORD

/KUCXJ

XKP3042

F

PRIMARY ASSY
(AWU8266)

S1

ASG7024-

AC POWER SW

AN1

2

NEUTRAL

1

LIVE

CN2

B2P3-VH

T1

CN11

MAIN

1

1

2

2

MAIN

B4PS-VH

1

1

2

2

3

3

4

4

14

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