Pioneer XWHT-1 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 2004

÷

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

DIGITAL WIRELESS SPEAKER

V O

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C S

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IN

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E M

C H

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.S T

E R

E O

W I

R E

L E

S S

ATT

/ O F

TRANSMITTER

F

M UTE

ORDER NO.

RRV3009

XW-HT1

Digital Wireless Speaker System

XW-HT1

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

Model Type Power Requirement Remarks

XW-HT1

KUCXJ

AC120V

For details, refer to "Important symbols for good services" .

T-ZZR AUG. 2004 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 and certain electrical parts contain chemicals which are known to the state of California to cause cancer,

B

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

C

les pièces de remplacement doivent avoir la même désignation.

(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

1234

XW-HT1

5678

[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.

56

XW-HT1

E

F

3

7

8

1234

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 Ω 47k Ω

0.5 Ω 1 Ω

56 x 10 47 x 10 R50 1R0

1

3

Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).

5.62k Ω

Mark No. Description Part No.

B

LIST OF ASSEMBLIES

NSP 1..COMPLEX ASSY AWM7954

2..AMP ASSY AWU8246

2..PRIMARY ASSY AWU8247

2..AMP-LED ASSY AWU8248

2..BINDER ASSY AWU8251

NSP 1..MAIN ASSY AWM7951

2..DSP ASSY AWU8244

2..DSP-LED ASSY AWU8245

1..TX MODULE AXF7010

C

1..RX MODULE AXF7011

Mark No. Description Part No.

DSP ASSY

A

SEMICONDUCTORS

IC1201 AK5357VT

>

IC1501 BA09SFP IC1152, IC1632, IC1662 BA4558F-HT IC1151 BU4052BCF IC1751 LC75342M

D

IC1602 NJM2115M IC1503 NJM2391DL1-25 IC1502 NJM78M05DL1A IC1301 NJU26150 IC1601, IC1631, IC1661 PCM1754DBQ

IC1401 PDC118A IC1303 PDL019A8 IC1451, IC1511 PST3242 IC1202 TC74VHCT08AFT IC1302 TC7SET08FU

E

IC1203 TC7SH08FU Q1801, Q1802, Q1831, Q1861, Q1862 2SD2114K Q1803, Q1833, Q1866 DTA143EUA Q1511, Q1804, Q1834, Q1867 DTC114TUA Q1151, Q1152, Q1805, Q1835 DTC124EUA

Q1864, Q1865, Q1868 DTC124EUA

>

D1501, D1502 1SR154-400 D1801, D1802, D1831, D1861, D1862 1SS355 D1503 UDZS4R7(B)

SWITCHES AND RELAYS

S1401-S1403, S1861 VSG1024

F

CAPACITORS

C1212, C1213, C1218, C1311 CCSRCH100D50

561 473

RD1/4PU J RD1/4PU J RN2H K RS1P K

1

5621

RN1/4PC F562 x 10

561 473

R50

1R0

5621

Mark No. Description Part No.

C1401 CCSRCH101J50 C1103, C1104, C1133, C1134 CCSRCH470J50 C1352 CCSRCH471J50 C1302, C1303 CCSRCH7R0D50

C1105, C1106, C1135, C1136 CEAT100M50 C1152-C1154, C1201, C1205, C1305 CEAT100M50 C1410, C1602, C1603, C1605, C1606 CEAT100M50 C1614, C1632, C1633, C1635, C1644 CEAT100M50 C1662, C1663, C1665, C1666 CEAT100M50

C1674-C1676, C1751, C1752, C1754 CEAT100M50 C1801, C1802, C1831, C1861, C1862 CEAT100M50 C1756 CEAT101M25 C1203 CEAT2R2M50 C1156 CEAT470M25

C1504, C1508 CEAT470M50 C1501 CEAT471M25 C1505, C1510 CEAT471M6R3 C1208, C1803, C1804 CKSRYB102K50 C1151, C1155, C1207, C1209, C1210 CKSRYB103K50

C1220, C1223-C1225, C1227, C1304 CKSRYB103K50 C1309, C1331, C1332, C1334 CKSRYB103K50 C1402-C1404, C1408, C1409, C1506 CKSRYB103K50 C1521-C1523, C1533, C1534, C1601 CKSRYB103K50 C1604, C1611-C1613, C1631, C1634 CKSRYB103K50

C1641-C1643, C1661, C1664 CKSRYB103K50 C1671-C1673, C1753, C1755, C1833 CKSRYB103K50 C1863 CKSRYB103K50 C1202, C1204, C1206, C1301 CKSRYB104K25 C1306-C1308, C1310, C1453, C1502 CKSRYB104K25

C1511, C1512 CKSRYB104K25 C1531, C1532 CKSRYB105K10 C1609, C1610, C1667-C1670 CKSRYB152K50 C1866, C1867 CKSRYB152K50 C1607, C1608 CKSRYB222K50

C1637, C1639 CKSRYB473K50

RESISTORS

R1531 RS1/16S1003D R1532 RS1/16S5602D Other Resistors RS1/16S###J

OTHERS

CN1861 FJ CONNECTOR 12P 12PL-FJ JA1501 DC POWER JACK AKN7038 X1401 X’TAL OSC. ASS7034 JA1101, JA1131, JA1801 2P PIN JACK BKB1017 JA1831 1P PIN JACK VKB1159

50

XW-HT1

1234

5678

Mark No. Description Part No.

CN1471 19P FFC CONNECTOR VKN1423 X1301 X’TAL OSC. (36.8MHz) VSS1085

Mark No. Description Part No.

C13 CEAT682M25 C3301, C3302 CEATR47M50 C3311, C3386, C3391, C3392 CKSRYB103K50 C3303, C3304 CKSRYB222K50 C3375, C3376 CKSRYB223K50

A

DSP-LED ASSY

B

SEMICONDUCTORS

Q1471-Q1483 DTC143EUA D1471-D1476, D1478-D1482 (LED) SLR-343MC D1477, D1483 (LED) SLR-343VC

CAPACITORS

C1452 CEAL470M10 C1451 CKSRYB103K50

RESISTORS

Other Resistors RS1/16S###J

OTHERS

CN1472 CONNECTOR CKS3833 1471 REMOTE RECEIVER UNIT GP1UM26XK

AMP-LED ASSY

E

SEMICONDUCTORS

D5901, D5902 (LED) SLR-343MC

OTHERS

CN5902 5P FFC CONNECTOR 52044-0545

AMP ASSY

C

SEMICONDUCTORS

>

IC12, IC13 AEK7047

>

IC11, IC14 AEK7049

IC3301 BA4558F-HT

>

IC3302 LA4663

>

IC15 NJM78M09FA

Q3451, Q3452 2SA1576A Q3454 2SC2412K Q3453, Q3511, Q5901 2SC4081 Q3455 2SD1858X Q3305 DTC114YK

D12-D16, D3451, D3503, D3511 1SS355

>

D11 D3SBA20(B)

>

D17 S1WB(A)60SD D3304, D3371 UDZS4R7(B) D3453 UDZS9R1(B)

SWITCHES AND RELAYS

RY3301 ASR7019

C3355-C3362 CKSRYB224K16 C3373, C3374 CKSRYB682K50

RESISTORS

Other Resistors RS1/16S###J

OTHERS

CN5901 5P FFC CONNECTOR 52045-0545 CN3701 12P PLUG 53290-1210 CN11 4P POST B4PS-VH CN3401 5P-VH CONNECTOR B5P-VH 1, 2 PCB BINDER VEF1040

KN11 TERMINAL VNF1084

PRIMARY ASSY

D

SWITCHES AND RELAYS

>

S1 PUSH SWITCH ASG7024

CAPACITORS

>

C3 CKA (10000P/AC250V) ACG7034

OTHERS

H1, H2 FUSE CLIP AKR7001

>

CN2 CONNECTOR B2P3-VH

>

AN1 AC CORD SOCKET XKP3042

BINDER ASSY

F

OTHERS

10 PCB BINDER VEF1040

TX MODULE

G

SEMICONDUCTORS

IC7 EEPROM(PAIR SET)* AXX7198 IC1 FS2105-A01 IC3 AIC1680N-22CU IC22 REGULATOR IC(3.3V) AIC1734-33CXA IC21 REGULATOR IC(5V) AIC1734-50CXA

IC9 ADC AK5380VT IC6 REGULATOR IC NCP1117ST50T3 IC23 RF MODULE(TX/EU) SPE9104-1005 D10 DIODE LL4148 D2 DIODE S5688G

B

C

D

E

CAPACITORS

C3310 CEAL101M25 C3451 CEANP101M10 C15, C3306, C3312, C3371, C3372 CEAT100M50 C19 CEAT101M25 C12, C3512 CEAT1R0M50

C3462, C3464 CEAT221M6R3 C16 CEAT222M25 C3383, C3384 CEAT2R2M50 C3313, C3463, C3511 CEAT470M25 C3387 CEAT471M6R3

56

COILS

XW-HT1

D5,D6 DIODE HSM107S

L15 CHIP SOLID INDUCTOR DTL1067 L16 CHIP SOLID INDUCTOR DTL1067 L43 CHIP SOLID INDUCTOR QTL1011 L6 CHIP SOLID INDUCTOR DTL1067 L7 CHIP SOLID INDUCTOR DTL1067

L74 CHIP SOLID INDUCTOR DTL1067 L131,L132 CHIP SOLID INDUCTOR VTL1145

7

F

51

8

1234

Mark No. Description Part No. CAPACITORS

C1, C2 CAPACITOR CCSSCH330J50 C5, C11 ELECT. CAPACITOR CEAL101M16

A

C113 CAPACITOR CCSSYB102K50 C12 CAPACITOR CCSSYB103K16 C122,C148 CAPACITOR CCSSYB102K50

C49, C129 CAPACITOR CCSSYB471K50 C16 CAPACITOR CCSSYB103K16 C131 CAPACITOR CCSSYB103K16 C9, C17 ELECT. CAPACITOR CEAL100M16 C18, C19 CAPACITOR CCSSCH151J50

C37, C42 CAPACITOR CCSSYB102K50 C4, C6 CAPACITOR CCSSYB103K16 C43, C62 CAPACITOR CCSSYB102K50

B

C46, C48 ELECT. CAPACITOR CEAL100M16 C47, C52 CAPACITOR CCSSYB103K16

C69 CAPACITOR CKSSYB103K50 C54 ELECT. CAPACITOR CEAL100M16 C149,C147 CAPACITOR CCSSYB103K16 C51, C53 CAPACITOR CCSSYB103K16 C150,C152 CAPACITOR CCSSYB104K10

RESISTORS

Other Resistors RS1/16S###J

OTHERS

C

X1 X’TAL OSC.(24.576MHz) ANT1 ANTENNA ANT0100-0016 CN2 FJ CONNECTOR 12P 12R-FJ CN10 9P FFC CONNECTOR VKN1185

RX MODULE

H

R49SDA-024576-F1-25C

SEMICONDUCTORS

IC11 EEPROM(PAIR SET)* AXX7198 IC24 IC NJM4558MD IC28 DAC PCM1742KE IC20 IC AIC1680N-22CU

D

IC19 REGULATOR IC(3.3V) AIC1734-33CXA

IC12 REGULATOR IC(5V) AIC1734-50CXA IC17 REGULATOR IC NCP1117ST50T3 IC25 IC NC7SPU04P5X IC2 IC(Audio) FS2105-A01 IC16 RF MODULE(RX) SPE9104-1006

D16 DIODE S5688G D9 DIODE LL4148 D1,D2 DIODE BB149

E

COILS

L23 CHIP SOLID INDUCTOR DTL1067 L104 CHIP SOLID INDUCTOR DTL1067 L105 CHIP SOLID INDUCTOR DTL1067 L52 CHIP SOLID INDUCTOR DTL1067 L41 CHIP SOLID INDUCTOR QTL1011

L7 CHIP COIL LCTAW100J2520 L71 CHIP SOLID INDUCTOR DTL1067 L8 CHIP SOLID INDUCTOR DTL1067 L9 CHIP COIL LCTAW100J2520 L99 CHIP SOLID INDUCTOR DTL1067

F

CAPACITORS

C10 ELECT. CAPACITOR CEAL101M10 C100 CAPACITOR CKSSYB102K50

Mark No. Description Part No.

C101 CAPACITOR CKSSYB102K50 C102 ELECT. CAPACITOR CEAL100M16 C103,C134 CAPACITOR CKSSYB472K25

C105 ELECT. CAPACITOR CEAL100M16 C107 ELECT. CAPACITOR CEAL100M16 C108 ELECT. CAPACITOR CEAL100M16 C109 ELECT. CAPACITOR CEAL100M16 C30, C31 CAPACITOR CCSSCH101J50

C110,C111 CAPACITOR CCSSCH300J50 C114 CAPACITOR CKSSYB102K50 C120 CAPACITOR CKSSYB102K50 C121,C60 CAPACITOR CKSSYB102K50 C127,C145 CAPACITOR CKSSYB102K50

C13, C142 CAPACITOR CKSSYB103K16 C132,C143 CAPACITOR CKSSYB103K16 C104,C146 CAPACITOR CKSSYB103K16 C106,C134 CAPACITOR CKSRYB103K16 C137 CAPACITOR CKSSYB473K10

C145 CAPACITOR CKSSYB102K50 C15,C27 CAPACITOR CKSSYB103K16 C28 ELECT. CAPACITOR CEAL101M10 C29 CAPACITOR CKSSYB103K16 C134 CAPACITOR CKSSYB472K25

C96 CAPACITOR CKSSYB472K25 C32 CAPACITOR CKSSYB103K16 C142 CAPACITOR CKSSYB103K16 C34 CAPACITOR CKSSYB471K50 C39 CAPACITOR CKSSYB102K50

C40 CAPACITOR CKSSYB102K50 C41 CAPACITOR CKSSYB102K50 C44 CAPACITOR CKSSYB103K16 C55 CAPACITOR CKSSYB103K16 C65 CAPACITOR CKSSYB103K16

C66 CAPACITOR CKSSYB102K50 C68 CAPACITOR CKSSYB103K16 C7 CAPACITOR CKSSYB103K16 C70 CAPACITOR CKSSYB103K16 C71 ELECT. CAPACITOR CEAL100M16

C72 CAPACITOR CKSSYB103K16 C146 CAPACITOR CKSSYB103K16 C75 CAPACITOR CKSSYB103K16 C76 CAPACITOR CKSSYB471K50 C77 CAPACITOR CKSSYB103K16

C79 ELECT. CAPACITOR CEAL100M16 C81 CAPACITOR CKSSYB103K16 C87 CAPACITOR CKSSYB103K16 C90 CAPACITOR CKSSYB102K50 C82 ELECT. CAPACITOR CEAL100M16

C80 CAPACITOR CKSSYB103K16 C85 CAPACITOR CKSSYB471K50 C86 ELECT. CAPACITOR CEAL100M16 C88 ELECT. CAPACITOR CEAL100M16 C92 ELECT. CAPACITOR CEAL4R7M16

C91 CAPACITOR CKSSYB102K50 C60 CAPACITOR CKSSYB102K50 C97 ELECT. CAPACITOR CEAL100M16 C94 ELECT. CAPACITOR CEJQ221M16

52

XW-HT1

1234

5678

Mark No. Description Part No.

RESISTORS

R120 RESISTOR RS1/16S4701F

R121 RESISTOR RS1/16S4701F

R2 RESISTOR RS1/16S1002F

R64 RESISTOR RS1/16S1002F

R65 RESISTOR RS1/16S1002F

R66 RESISTOR RS1/16S1002F

R67 RESISTOR RS1/16S1002F

R68 RESISTOR RS1/16S1002F

R69 RESISTOR RS1/16S1002F

R70 RESISTOR RS1/16S1002F

R90 RESISTOR RD1/4PUF5R6J

Other Resistors RS1/16S###J

A

OTHERS

X2 X’TAL OSC.(12.288MHz)

X3 X’TAL OSC.(24.576MHz)

ANT3 ANTENNA ANT0100-0016

CN3 12P SOCKET 52418-1210

CN6 9P FFC CONNECTOR VKN1213

*The AXX7198 on TX MODULE/RX MODULE is a service part containing two EEPROMs,both of which must be re placed when either needs to be replaced.

A49US-12288-F1-14D R49SDA-024576-F1-25D

6. ADJUSTMENT

There is no information to be shown in this chapter.

B

C

D

56

XW-HT1

E

F

53

7

8

1234

7. GENERAL INFORMATION

7.1 DIAGNOSIS

7.1.1 DIAGNOSIS NOTE

A

They are notes at the time of XW-HT1 diagnosis.

• If a radio module(TX Module) is removed, a problem is in connection of GND. (GNDA and GNDRF are separated.)

When you remove and examine a radio module, please be sure to connect GNDA and GNDRF.

B

• EEPROM PDL 019A8 of IC1303 writes a program in general-purpose EEPROM. Therefore,

marking of IC is the maker part number (M24C64-RMN6) of EEPROM. A white dot mark sticks. (The PDL number is not printed on IC.)

(Just to short-circuit the standby cell of R1892.)

C

• The thing for XW-HT1 should be used for an adapter. By the adapter of an old wireless model

Capacity is insufficient and an adapter breaks. Moreover, in XW-HT1, the protection circuit when there is input voltage more than regulation is carried. In input about 14v or more, a protection circuit (IC1511) operates and the CTL terminal of IC1501 is controlled. A power supply is not supplied after IC1501.

D

• Be careful of DSP ASSY not to burn oneself, since IC1501 generates heat at the time of

examination. (Heat is usually radiated using a chassis.) If possible, please let me radiate heat. Be careful for there to be no failure of a heat dissipation sheet to attach at the time of a service end.

• Receiver side AMP is BTL amplifier. SP output - side is appearance to which

it does not short-circuit as GND (chassis etc.) at the time of diagnosis since

E

it is not GND. Be careful.

F

54

1234

XW-HT1

5678

7.1.2 TROUBLESHOOTING

(1) In a case where the power is not turned on (the POWER LED does not light)

TX side

The protection circuit may have

been activated. Use the adaptor dedicated to the

XW-HT1.

Insert the FFC

correctly.

Narrow down the point in failure.

No power (The POWER LED does not light.)

No

Check the communication between IC1301 and IC1303 and that between IC1301 and IC1401.

Is the

AC adaptor for the

XW-HT1 being

used?

Yes

Is the

FFC correctly

inserted?

Yes

Are electric

potentials at each

measuring point

normal?

Yes

• Communication between IC1301 and IC1303 is initiated only immediately after the power is turned on.

• Communication between IC1301 and IC1401 is initiated immediately after the power is turned on and when modes are changed.

A

B

C

(2) In a case where no sound is output

TX side

Check the power and input/output voltages at IC1501, IC1502, and IC1503.

The DSP may not be operating properly. Check the communication between IC1301 and IC1303 and that between IC1301 and IC1401.

Check the communication lines for the clock (such as, IC1202, IC1203, and resistors).

No sound

No

(18.432 MHz) correctly

No

BCKO, and LRO that are

output from the DSP properly

input to IC1201, IC1601,

Check the audio lines to narrow down the point in failure.

Is the

voltage at each

IC correct?

Yes

Is MCK

output from Pin 30

of IC1301?

Yes

Are MCK,

IC1631, and IC1661?

Yes

D

E

F

56

XW-HT1

55

7

8

1234

(1) In a case where the power is not turned on (the POWER LED does not light)

RX side

A

No power (The POWER LED does not light.)

Insert the FFC

correctly.

Is the

B

C

POWER LED lit?

Yes

No

Is the

FFC correctly

inserted?

Yes

Is the fuse blown?

Yes

Replace the F1 fuse.

Yes

Is the POWER

LED lit?

Yes

Inspection completed.

No

Is the

protection circuit in

IC11 and/or IC14

broken?

Yes

Replace IC11 and/or

IC14.

Yes

Is the POWER

LED lit?

Yes

No

Check that the circuits are not short-circuited.

As the circuit for +9 V is most likely to have been shortcircuited, check the circuits around IC15.

(2) In a case where no sound is output

D

E

F

RX side

Check the electric potentials at each point of the module.

Check the circuits around Q3455 and Q3454.

Replace IC12

and IC13.

No

No sound

Is TUNED lit?

Yes

Is the relay on?

Yes

Is +B voltage active?

Yes

56

XW-HT1

1234

5678

(2-2) In a case where no sound is output

RX side

A

Are the protection

circuits in IC12 and

IC13 broken?

Yes

The +B and ground circuits are most likely to be short-circuited, or IC3302 is likely to be broken.

7.1.3 POWER ON SEQUENCE

No

To diagnosis of the TX section

Is Pin 5 of IC3302

"H" and Pin 6 "L"?

Yes

Detach the

RX module, then by

inputting an audio signal to the

jumper lead for servicing,

check if sound is

output.

Sound is output.

It is most likely that the RX module or TX section is in failure.

No

Check the circuits around Q3305 and Q3511.

No

sound

Check the audio lines to narrow down the point in failure.

B

C

POWER ON

RESET START

Intitialization of the system microcomputer

Line test mode distinction

Intitialization of the VOLUME IC(IC1751)

DSP starting

Canceling of MUTE

• A pin number is a terminal number of the system microcomputer PDC 118.

XRESET (Pin 2) terminal is set to Hi.

TEST (Pin 4) terminal is Lo, it will become line test mode.

It is a communication start because of initialization of VOLUME IC. (43,44,45pin)

SRESET (Pin13) terminal is set to Hi.

DSP IC and a communication start. (9,10,11,12pin)

In the power ON, it is each MUTE release after about 5 seconds.

XSYSMUTE (38pin) terminal is Hi.

XWMUTE (42pin) terminal is Hi.

XSWMUTE (37pin) terminal is Hi.

However, when volume is "0", it does not cancel MUTE.

D

E

F

56

XW-HT1

57

7

8

1234

R3375

C3395

C3392

Q

7.1.4 NOTES ON REPLACE OF PARTS

(ID-related)

The ID number for an individual product is stored in the EEPROMs (IC7 for the TX module, IC11 for the RX module) of each module (TX module: AXF7010, RX module: AXF7011). It should be noted that wireless communications cannot be performed

A

unless these ID numbers are identical.

1. Replacement of the TX or RX module

Upon replacement of the TX (AXF7010) or RX (AXF7011) module, remove the EEPROM from the original module and mount it on the new one.

2. Replacement of the EEPROMs (IC7 and IC11)

Using service part AXX7198 (a kit containing two EEPROMs with identical ID numbers stored in them,) replace both EEPROMs when either needs to be replaced.

Note : The AXX7198 is a service part containing two EEPROMs, both of which must be replaced when either needs to be

B

replaced.

7.1.5 DIAGNOSIS OF THE AMPLIFIER SECTION

You can diagnose the amplifier section even if the transmitter section is not available. Input audio signals to the Jumper Wire for service use indicated below. At that time remove the RX MODULE.

C

AMP ASSY

C

Jumper Wire for service for signal input

SIDE B

R5903

R5905

R5902

R5904 R5906

Lch

C3373 R3373

VA+9

R5908 R5907

NC NC

STATUS ERROR GND ROUT GND(NC) LOUT GND GND V+9 V+9

R5901

R3996

GNDA

Q5901

R3997 R3995

VREF

D3371

GNDD

LEDPOW

15

LEDTUN2

LEDTUN1

GNDD

Rch

GNDD

R3513

R3514

Q3511

R3372 C3376

C3374 R3378 R3374 R3380 R3376

R3464 R3465

R3512

D14

R3511

D3453

R3459

D15

R15

VD+9

GNDD

D16

R3461

112

C3701

GNDA

For SERVICE

R3458

14

D

E

R12

~~

D17

R11

GNDRF

R16

GNDS

D13

D12

Q3454

D3511

D3452 D3451

Q3453 R3463

R3460

R3371 C3375 R3377 R3379 C3396

D3503

F

58

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1234

5678

7.1.6 PROTECTION CIRCUIT

PROTECT Operation Description

C

SR+ (L+)

SR- (L-)

SL- (R-)

TO SPEAKER

SL+ (R+)

STBY

D3452 D3451

Q3454

2SC2412K(QR)

AMP ASSY (AWU8246)

CN3401

B5P-VH

5

4

3

NC

2

1

Q3455

2SD1858X(QR)

ASR7019

(1/2)

43

RY3301

C

B

E

R3463

56k

SP PROTECT

Q3451

2SA1576A

(QR)

CC

B

EE

10k

R3456

VPRE9

STBY

C

R3461

B

R3464

R3465

47/25

220220

220

D3453

UDZS9R1(B)

R3462

C

E

C3464

220/6.3

E

C3463

-TS

Q3452

2SA1576A

(QR)

R3457

B

10k

VREF5VD+9

R3460

3.9k

Q3453

2SC4081

B

R3459

10k

R3451

C3451

(QR)

C3462

GNDD

4.7k

NP

100/10

220/6.3

R3452

R3455

R3458

10k

4.7k

R3453

4.7k

R3454

4.7k

+B

RY3301

ASR7019

(2/2)

12

IC3302 LA4663

VCC2

VCC1

789

GNDP

MUTE

6

C3312

STANDBY

GNDA

L IN

5

-TS10/50

R IN

2

341

GNDP

RF

R- OUT

R+ OUT

L- OUT

L+ OUT

GNDP

12

10

14

100/25

AL-TS

MUTE

LA4663

IC3302

13

11

SR+ (L+)

SR- (L-)

SL- (R-)

SL+ (R+)

VP

C3311

0.01

C3310

+B

A

-TS47/25

C3313

B

L in

C

DC detection circuit

SP PROTECT is set to "H" Q3453 turns on, next Q3454 turns off.

In connection with it, the power supply (+VP) to IC3302 POWER IC is lost in RY3301 relay turning off.

Therefore, an unusual state (DC output state) is canceled.

In addition, if an unusual state is canceled, since RY3301 relay turns on, DC detection of it will be carried out again, SP PROTECT will be set to "H", and RY3301 will repeat ON/OFF.

Cautions: Since RY3301 relay repeats ON/OFF, a check on a feeling of hearing can be taken at the time of abnormalities.

Since a relay repeats ON/OFF, be careful of +VP voltage at the time of diagnosis.

D

E

F

56

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59

7

8

1234

7.1.7 DISASSEMBLY

Note: Even if the unit shown in the photos and illustrations in this manual may differ from your product, the procedures

A

described here are common.

1

Grille Assy

Remove the four screws.

1

11

1

2

Antenna

Turn a direction of the antenna.

1

Unhook the two hooks of the antenna cover.

2

Remove the antenna cover.

3

1

2

B

Antenna

Rear view

C

Antenna Cover

3

Remove the Grille Assy.

2

Antenna cover

2

-2

D

2

-1

Pull the antenna to upper side, and remove it.

4

Put the antenna which removed in a inside of the product.

Grille Assy

E

Antenna

Rear view

4

Antenna

F

60

1234

XW-HT1

5678

3

Chassis Section

Remove the three screws.

1

A

Rear view

1

11

Remove the two screws.

2

Disconnect the one connector and the one flexible cable.

3

Pull out the chassis section.

4

3

2 2

4

Chassis section

AMP Assy

C

AMP-LED Assy

E

B

C

D

BINDER Assy

F

RX Module

H

56

XW-HT1

PRIMARY Assy

D

7

E

F

61

8

1234

7.1.8 The style of a wire rod

Wire rod

A

Attachment of a binder

1

Rear view

Power supply section style of a wire rod

4

binder

PCB binder

1

B

Speaker section style of a wire rod

2

C

2

D

The style of a wire rod

3

E

F

A wire rod cannot be touched at an antenna.

62

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1234

5678

7.2 IC

• The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.

IC List

AK5380VT (TX Module : IC9)

• AD Converter

AK5380VT, PCM1742KE, FS2105TX, FS2105RX, NJU26150, LA4463, PDC118A

A

Blockdiagram

AINL

AINR

VCOM

6

2

1

Voltage Reference

4

AGNDVA

5

∆Σ

Modulator

∆Σ

Modulator

DGNDVD

7

16

TST

Pin function

.oNemaNniPO/InoitcnuFniP

1RNIAI niptupnigolanahcR 2LNIAI niptupnigolanahcL 3CN 4MOCVO niptuptuoegatlovnommoC 5DNGA

6AV 7DV 8DNGD 9OTDSO niptuptuoatadlaireS

01KCRLI )kcolcsftupnI(nipkcolclennahcR/L 11KLCMI niptupnikcolcretsaM 21KLCSI niptupnikcolcatadlaireS 31NDPI .norewopnehwecnoteseroteruseB]edomnwodrewop:"L"[nipnwodrewoP 41FIDI ]SII:"H",drawroftrohstuc:"L"[niptamrofecafretnilaireS

51LTTI

61TSTI )nwodlluplanretni(niptseT

−

nipdnuorggolanA

nipdnuorglatigiD

8

Decimation

Filter

Decimation

Filter

)gnidnoblanretnioN(nipCN

leveltupnilatigidrofnipnoitceleS

PDN

V5.5+–5.4+,nipylppusrewopgolanA

13

MCLK

11

Clock Divider

Serial I/O

Interface

14

DIF

TTL

15

10 12

LRCK SCLK

B

9

SDTO

C

D

)zHk69=sf(V5.5+–5.4+,)zHk84=sf(V5.5+–7.2+,nipylppusrewoplatigiD

])V5.5–5.4=DV(levelLTT:"H",)V5.5–7.2=DV(levelSOMC:"L"[

E

56

XW-HT1

F

63

7

8

1234

PCM1742KE (RX Module : IC28)

• DA Converter

A

B

C

Blockdiagram

1

BCK

ML

MC

MD

SCK

3

2

15

14

13

16

LRCK

DATA

Audio Serial

Port

Serial

Control

Port

System Clock

Manager

Oversampling

Digital Filter

System Clock

4x/8x

with

Function

Controller

12

ZEROL

Enhanced

Multilevel

Delta-Sigma

Modulator

Zero Detect

11

ZEROR

DAC

Output Amp and

Low-Pass Filter

Output Amp and

Low-Pass Filter

Power Supply

54

DD

V

DGND

V

L

OUT

7

V

COM

10

V

R

OUT

8

9

6

CC

V

AGND

Pin functionPin layout

.oNemaNniPO/InoitcnuFniP

D

TOP VIEW

1

BCK

2

DATA

3

LRCK

4

DGND

5

V

DD

6

V

E

CC

7

V

L

OUT

8

V

R

OUT

PCM1742

16

SCK

15

ML

14

MC

13

MD

12

ZEROL/NA

11

ZEROR/ZEROA

10

V

COM

9

AGND

1KCBI )tupnireggirttdimhcS(atadoiduaroftupnikcolctiB 2ATADI )tupnireggirttdimhcS(atadoiduaroftupnilatigiD 3KCRLI atadoiduafolennahcR/LroftupnielbanehctaL 4DNGD

5V

DD

6VCC 7V

TUO LO hcLroftuptuogolanA

−

8VTUO RO hcRroftuptuogolanA 9DNGA

01V

MOC

−

11AOREZ/ROREZO hcR/Lroftuptuogalforez/hcRroftuptuogalforeZ 21AN/LOREZO desutoN/hcLroftuptuogalforeZ 31DMI lortnocedomroftupniataD 41CMI lortnocedomroftupnikcolC 51LMI lortnocedomroftupnihctaL 61KCSI tupnikcolcmetsyS

dnuorglatigiD

V3.3+,ylppusrewoplatigiD

V5+,ylppusrewopgolanA

dnuorggolanA

egatlovesahpemasrofgnilpuoceD

F

64

XW-HT1

1234

5678

FS2105TX (TX Module : IC1)

• DSP for Transmitter

Blockdiagram

FS 2105 -Tx

FS 21 -Tx

RF BE

MOD In

EEPROM

RF

I/O

Controller

Jitter

Management

Audio

Processor

Audio

In

ECC Engine

Dat a /Clocks

ADC

A

B

SOFT KEYS

Pin Assignment

AUDIOEN ABLE1

AUDIOEN ABLE2

AUDIOS TAT US

CHANNELBIT1

PLDO1

PLDO2

LRNIN

SRCSCLK

GND

SRCDATAIN

VCC

SDTO

LRN

MCLK

GND

SCLK

PLDC

PLDD

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

2345678

AUDIOMODE1

AUDIOMODE2

GND

PLDB

PLDA

45

44

46

VCCC0C1

41

42

43

FS2105TX

Transmitter Rev A01

64-pin LQFP

C

NC

PLL_DATA

PLL_CLK

RFENABLE

GND

38

37

39

40

9

10

36

11

1213141516

PLL_LE

33

35

34

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

RESERVED

RFOUT

GND

ECS

ESK

EDI

EDO

VCC

TVKEY4

TVKEY3

TVKEY2

TVKEY1

GND

CAL

GND

READYI_ERRORI

D

E

PD

GND

CLKIN

EEPROM

CLKOUT

VCC

TESTN

VOLUP

RESETN

VOLDOWN

GND

CHANNELSEL

CHAN NELBIT0

XW-HT1

56

IDTX

READY

ERRORIN

F

65

7

8

1234

Pin Function (1/2)

A

Pin No

Name

Functional

Grouping

IO Type

Description

1 EEPROM System Input Indicate the usage of a external

serial EEPROM, 1 => serial EEPROM is present 0 => serial EEPROM is absent, use system default settings upon power up

2 PD Power

Input Power Down pin

Management

B

3 CLKIN System Input 24.576MHz crystal pad input 4 GND Ground NA Ground 5 CLKOUT System Output 24.576MHz crystal pad output 6 TESTN TEST Input Test Mode Select 7 RESETN System Input Master reset ñ Active Low 8 VCC Power NA 3.3 V 9 VOLUP System Input Push button Digital Volume Up pin

10 VOLDOWN System Input Push button Digital Volume Down

pin 11 CHANNELSEL System Input Push button Channel Select pin 12 CHANNELBIT0 System Output Channel Number Bit 0

C

13 GND Ground NA Ground 14 READY System Output Chip ready status signal (active

high) ñ Open Drain 15 IDTX System Input ID Broadcast mode 16 ERRORIN System Input Audio Error signal ñ Active High

(default) 17 READYI/ERRORI System Output Configurable READYN or ERRORN

signal 18 GND Ground NA Ground 19 CAL ADC Output ADC Calibration Signal 20 GND Ground NA Ground

D

21 TVKEY1 Forward

Input Input Forward Virtual Key 1

Link

22 TVKEY2 Forward

Input Input Forward Virtual Key 2

Link

23 TVKEY3 Forward

Input Input Forward Virtual Key 3

Link

24 TVKEY4 Forward

Input Input Forward Virtual Key 4

Link 25 VCC Power NA 3.3 V 26 EDO Serial

EEPROM

E

27 EDI Serial

Input Serial Data Output from Serial

EEPROM

Output Serial Data Input to Serial EEPROM

EEPROM

28 ESK Serial

EEPROM

29 ECS Serial

EEPROM

Output Serial Clock Input to Serial

EEPROM

Output Chip Select to Serial EEPROM

(active low)

30 GND Ground NA Ground

F

66

1234

XW-HT1

5678

Pin Function (2/2)

31 RFOUT Front-End Output RF Digital Output to RF Front End

Module 32 RESERVED System Input Must be tied to VCC 33 PLL_LE Front-End Output RF Module PLL Latch Enable 34 PLL_CLK Front-End Output RF Module PLL Clock 35 PLL_DATA Front-End Output RF Module PLL Data 36 NC System Output Not used. Left it floating 37 GND Ground NA Ground 38 RFENABLE Power

Management

Output RF Power Enable,

0 => Turn off RF module power

Tri-state => Turn on RF module

power

Open Drain Output 39 C0 Front-End Input Manual Channel Select Bit 0 40 C1 Front-End Input Manual Channel Select Bit 1 41 VCC Power NA 3.3 V 42 AUDIOMODE1 System Input Audio Mode 1 43 AUDIOMODE2 System Input Audio Mode 2 44 GND Ground NA Ground 45 PLDA Programmabl

Input Programmable Input Logic A

e Logic

46 PLDB Programmabl

Input Programmable Input Logic B

e Logic

47 PLDC Programmabl

Input Programmable Input Logic C

e Logic

48 PLDD Programmabl

Input Programmable Input Logic D

e Logic

49 PLDO1 Programmabl

e Logic

50 PLDO2 Programmabl

e Logic

Output Programmable Output Logic 1,

PLDO1 = f(A,B)

Output Programmable Output Logic 2,

PLDO1 = f(C,D) 51 LRNIN SRC Input SRC LRN Input 52 SRCSCLK SRC Input/Output SRC SCLKOUT or SRC SCLKIN

signal 53 GND Ground NA Ground 54 SRCDATAIN SRC Input SRC DATAOUT to FS2105TX 55 AUDIOENABLE1 Power

Management

Output Audio Circuit Power Enable 1,

0 => Turn off Audio Circuit 1 power

Tri-state => Turn on Audio Circuit 1

power

Open Drain Output 56 AUDIOENABLE2 Power

Management

Output Audio Circuit Power Enable 2,

0 => Turn off Audio Circuit 2 power

Tri-state => Turn on Audio Circuit 2

power

Open Drain Output 57 VCC Power NA 3.3 V 58 SDTO ADC Input ADC-SDTO (ADC Data input) 59 LRN ADC Output ADC-LRN, ASRC-LRN (48K) 60 MCLK ADC Output ADC-MCLK (12.288 MHz) 61 GND Ground NA Ground 62 SCLK ADC Output ADC-SCLK (3.072 MHz) 63 AUDIOSTATUS System Output Audio Status Indicate,

0 => Low level audio or no audio

Tri-State => Audio present

Open Drain Output 64 CHANNELBIT1 System Output Channel Number Bit 1

A

B

C

D

E

F

56

XW-HT1

67

7

8

1234

FS2105RX (RX Module : IC2)

• DSP for Receiver

A

B

Blockdiagram

RF FE

Antenna Control

DEMOD Out

EEPROM

FS21 Rx

FS2105Rx

Diversity

Control

RF

I/O

Controller

Jitter

Manageme nt

Audio

Processor

Audio

IO

ECC Engine

Data/Clocks

DAC

SOFT KEYS

C

Pin Assignment

LRSEL

ANT-FORCE

VCXO4

VCXO3

47

48

VCXO5

D

E

VCXO6 VCXO7 VCXO8

GND

VCLKIN AUDI OENABLE1 AUDI OENABLE2

VCC

SDTI

LRN

MCLK

GND

SCLK

AUDI OSTATUS

RFNODETECT

49 50 51 52 53 54 55 56 57 58 59

60 61 62

63 64

2

GND

VCXO2

VCXO1

45

44

46

Receiver Rev A01

34567

VCC

41

43

42

FS2105RX

64-pin LQFP

8

RFENABLE

ANTENNA

ANTENNAI

40

9

39

10

GND

37

38

111213

NC

36

PLL_DATA

PLL_CLK

35

34

141516

PLL_LE

33

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

RESERVED

RFIN

GND

ECS ESK EDI EDO

VCC RV K E Y4

RV K E Y3 RV K E Y2 RV K E Y1 GND PCLKOUT

GND READ YI_ERRORI

PD

GND

CLKIN

EEPROM

CLK OUT

VCC

TESTN

VOLUP

RESETN

VOLDOWN

GND

IDRX

READY

RFSCANMODE

CH AN NELSCAN

ERROROUT

F

68

XW-HT1

1234

5678

Pin Function (1/2)

No

Name

Functional

Grouping

IO Type

Description

1 EEPROM System Input Indicate the usage of a external

serial EEPROM, 1 => serial EEPROM is present 0 => serial EEPROM is absent, use system default settings upon power up

2 PD Power

Input Power Down pin

Management 3 CLKIN System Input 24.576MHz crystal pad input 4 GND Ground NA Ground 5 CLKOUT System Output 24.576MHz crystal pad output 6 TESTN TEST Input Test Mode Select 7 RESETN System Input Master reset ñ Active Low 8 VCC Power NA 3.3 V 9 VOLUP System Input Push button Digital Volume Up pin

10 VOLDOWN System Input Push button Digital Volume Down

pin 11 CHANNELSCAN System Input Push button Channel AutoScan pin 12 RFSCANMODE System Output RF Scan Mode Status Output 13 GND Ground NA Ground 14 READY System Output Chip ready status signal (active

high) ñ Open Drain 15 IDRX System Input Push button ID Receive mode 16 ERROROUT System Output System Error signal Output 17 READYI/ERRORI System Output Configurable READYN or ERRORN

signal 18 GND Ground NA Ground 19 PCLKOUT System Output Programmable Clock Output 20 GND Ground NA Ground 21 RVKEY1 Forward

Output Received Forward Virtual Key 1

Link

22 RVKEY2 Forward

Output Received Forward Virtual Key 2

Link

23 RVKEY3 Forward

Output Received Forward Virtual Key 3

Link

24 RVKEY4 Forward

Output Received Forward Virtual Key 4

Link 25 VCC Power NA 3.3 V 26 EDO Serial

EEPROM

27 EDI Serial

Input Serial Data Output from Serial

EEPROM

Output Serial Data Input to Serial EEPROM

EEPROM

28 ESK Serial

EEPROM

29 ECS Serial

EEPROM

Output Serial Clock Input to Serial

EEPROM

Output Chip Select to Serial EEPROM

(active low) 30 GND Ground NA Ground 31 RFIN Front-End Input RF Front End Digital Output 32 RESERVED System Input Must be tied to GND 33 PLL_LE Front-End Output RF Module PLL Latch Enable 34 PLL_CLK Front-End Output RF Module PLL Clock 35 PLL_DATA Front-End Output RF Module PLL Data

A

B

C

D

E

F

56

XW-HT1

69

7

8

1234

Pin Function (2/2)

A

37 GND Ground NA Ground 38 RFENABLE Power

Management

Output RF Power Enable,

0 => Turn off RF module power Tri-state => Turn on RF module power

Open Drain Output 39 ANTENNA Front-End Output Antenna Switch Logic 40 ANTENNAI Front-End Output Antenna Switch Logic Inverted 41 VCC Power NA 3.3 V 42 LRSEL System Input Left Right Audio Channel Select

36 NC System Output Not used. Left it floating

B

43 ANT-FORCE System Input Antenna Force Control. 44 GND Ground NA Ground 45 VCXO1 DAC Output VCXO Control Bit 1 46 VCXO2 DAC Output VCXO Control Bit 2 47 VCXO3 DAC Output VCXO Control Bit 3 48 VCXO4 DAC Output VCXO Control Bit 4 49 VCXO5 DAC Output VCXO Control Bit 5 50 VCXO6 DAC Output VCXO Control Bit 6 51 VCXO7 DAC Output VCXO Control Bit 7 52 VCXO8 DAC Output VCXO Control Bit 8 53 GND Ground NA Ground

C

54 VCLKIN DAC Input VCXO 12.288 MHz clock input 55 AUDIOENABLE1 Power

Management

Output Audio Circuit Power Enable 1,

0 => Turn off Audio Circuit 1 power

Tri-state => Turn on Audio Circuit 1

power

Open Drain Output 56 AUDIOENABLE2 Power

Management

Output Audio Circuit Power Enable 2,

0 => Turn off Audio Circuit 2 power

Tri-state => Turn on Audio Circuit 2

power

Open Drain Output

D

57 VCC Power NA 3.3 V 58 SDTI DAC Output DAC-SDTI (I2S format) 59 LRN DAC Output DAC-LRN (48K) 60 MCLK DAC Output DAC-MCLK (12.288 MHz) 61 GND Ground NA Ground 62 SCLK DAC Output DAC-SCLK (3.072 MHz) 63 AUDIOSTATUS System Output Audio Status Indicate,

0 => Low level audio or no audio

Tri-State => Audio present

Open Drain Output 64 RFNODETECT System Output RF Status Indicate

E

F

70

1234

XW-HT1

5678

NJU26150 (DSP ASSY : IC1301)

• DSP IC

Blockdiagram

A

B

Pin Arrangement(Top view)

C

D

E

56

XW-HT1

F

71

7

8

1234

NJU26150 (DSP ASSY : IC1301)

• DSP IC

A

Pin Function

B

C

D

E

F

72

1234

XW-HT1

5678

PDC118A (DSP ASSY : IC1401)

• System Control Microcomputer

No. Pin Name

1 REMOCON 2 3 KEY1 4 5 6 7 8

9 10 SD IN 11 SCK 12 SSX 13 SRESET 14 15 CHIN1 16 CHIN2 17 18 19 20 21 VOLLED1 22 VOLLED4 23 VOLLED2 24 VOLLED5 O 25 VOLLED3 26 ATT 27 CS2CLED 28 WOFFLED O WIARELESS OFF 29 CS2MLED 30 FLASHE/D 31 FLASHDO 32 FLASHCLK 33 TVCLED 34 TVMLED 35 CS2STLED 36 TVSTLED 37 XSWMUTE 38 XSYSMUTE 39 40 41 A / D PDOWN 42 XWMUTE 43 WVOL DAT 44 WVOL CLK 45 WVOL CE 46 47 48

XRESET

TEST

Vss1 CF1 CF2

VDD1

SDOUT

DACMUTE

PWM1 PWM0 VDD2 Vss2

VDD3

VSS3

IN PUT SEL A IN PUT SEL B

STAN BY

I/O

I

REMOCON signal input(Interruption) I I

Key1 input I

– –

Main Clock

–

Main Clock

–

I

NJU26108 (S R S Decoder)

O

NJU26109 (S R S Decoder)

O

NJU26108 (S R S Decoder)

O O O

DAC Out put Mute CH Input Select 1

I I

CH Input Select 2 – – –

–

O O O

O O

Control ATT for AUDIO IN

O

-

for FLASH writing

-

for FLASH writing

-

for FLASH writing

O

TV SURR1

O

TV SURR2 O O

TV/LINE W.STEREO O

SUB WOFFER MUTE O

Control mute of system (FRONT MUTE)

– –

O O

WIRE LESS MUTE request

O O O O

O

Function

A

/ forces.

B

C

D

E

DBGP2(CLK)

DBGP1(DAT)

DBGP0(POC#)

56

XW-HT1

F

73

7

8

1234

LA4663 (AMP ASSY : IC3302)

• POWER IC

A

Blockdiagram

SIGNAL

R1

MUTE

22kΩ

+

+5V

B

C

C1

4.7uF 10V

–+

C2

4.7uF 10V

–+

C4 10uF

–

10V

IN1

PRE GND

IN2

+5V

5

STAND BY VCC1VCC2

6

CH 1

2

+

Output Amplifier

–

Ri=

3

4

20kΩ

Input

Ri= 20kΩ

Input Amplifier

Amplifier

+

–

CH 2

Output Amplifier

7 8

+OUT1

PWR GND1

–OUT1

+OUT2

PWR GND2

–OUT2

V

CC

+

C5 2200uF

–

25V

C6

RL=4~8Ω

0.1uF

14

R2

2.2Ω

13

R3

2.2Ω

12

C7

0.1uF

C8

RL=4~8Ω

0.1uF

9

R4

2.2Ω

10

R5

2.2Ω

11

C9

0.1uF

D

Pin Function

Pin Name

No.

1RFORF connection 2R IN I R ch Audio data input 3 GND A − Ground A 4L IN I L ch Audio data input 5 STANDBY I Standby input

E

6 MUTE I Signal Mute Input 7 VCC1 − 8 VCC2 −

9 L+OUT O L ch + Amplifier Output 10 GND P − Ground P 11 L- OUT O L ch - Audio data Output 12 R- OUT O R ch - Audio data Output 13 GND P − Ground P 14 R+ OUT O R ch + Amplifier Output

F

I/O Pin Function

Power supply 1 Power supply 2

Ripple Filter/ Starting Time

1

+

C3 47uF

–

25V

74

XW-HT1

1234

5678

8. PANEL FACILITIES

TRANSMITTER

TOP

A

B

VOLUME

CHANNEL

1

DISPLAY / FRONT

4

VOLUM E

123

CHANNEL

VOLUME

123

CHANNEL

4

2

SURROUND MODE

3

5

CS

CINEMA M USIC

DVD

CS

CINEMA MUSIC

DVD

W.STEREO W.STEREO

6

TV

CINEMA MUSIC

W.STEREO W.STEREO

TV

CINEMA MUSIC

WIRELESS

OFF

C

7

8

9

10

D

ATT /

WIRELESS

MUTE

OFF

ATT/

MUTE

E

56

XW-HT1

F

75

7

8

1234

A

1 VOLUME +/–

Press to adjust the volume of the wireless speaker (and subwoofer, if connected).

2 CHANNEL

In case of poor reception due to interference from other electrical devices, you can improve reception by selecting another channel. Each time you press the button, the channel

Note

• The step level for each LED in the volume indicator is shown below.

VOLUME

(1–10) (11–20) (21–30) (31–40) (MAX)

changes sequentially:

B

CH1

CH 2 CH 3

CH4

5 DVD input mode indicators

Light to indicate the surround mode set for the DVD input (

CS II CINEMA, CS II MUSIC

or W.STEREO).

Note

• Poor reception may cause the audio to be interrupted or stopped. This is not a malfunction. Try changing the location or orientation of the transmitter and/or the

6 TV input mode indicators

Light to indicate the surround mode set for the TV input (

CINEMA, MUSIC or W.STEREO).

wireless speaker to improve reception.

C

system Radio wave reflections Scope of operation on troubleshooting.

• See also Placing the wireless speaker

7 WIRELESS OFF indicator

Lights when sound from the wireless speaker is switched off.

8 ATT/MUTE indicator

Lights when output to the wireless speaker is

3 SURROUND MODE

being attenuated. Blinks when output is muted.

Press to switch the surround mode.

9 Remote sensor

Receives the signals from the remote control.

Note

• Since the surround modes work in

D

conjunction with the corresponding input (

DVDor TV), make sure the mode you’ve

selected corresponds with the input source.

4 VOLUME / CHANNEL indicators

Shows the volume level of the wireless speaker; blinks when the volume is changed (does not light when

OFF

is selected).

WIRELESS

• Make sure that there are no obstacles between the remote and the remote sensor on the unit.

• The remote has a range of about 7 meters, within 30° either side of the remote sensor.

• Remote operation may become unreliable if strong sunlight or fluorescent light is shining on the unit's remote sensor.

10 Transmitter antenna

Transmits signals to the wireless speaker.

When a channel is selected, the

E

corresponding channel indicator blinks for five seconds before returning to the volume display.

F

76

1234

XW-HT1

5678

Wireless Speaker

Upper

Back

A

2

1

TUNED

POWER

OFF ON

POWER

TUNED

OFF ON

5

3

Adjustable antenna

°

150150

B

°

C

AC IN

4

1 TUNED indicator

Lights when the signal from the transmitter is properly received.

2 POWER indicator

Lights when the wireless speaker is switched on.

3 POWER

Press to switch the unit on or off.

4 AC IN cord inlet

5 Wireless speaker antenna

Receives signals from the transmitter.

• Note that if you choose to adjust the antenna, turning it too far to the left or right (shown above) may damage the unit.

D

E

56

XW-HT1

F

77

7

8

1234

A

Remote control

1

SURR OUND MODE

∏

B

CS CINEMA CS∏MUSIC

2

3

C

1 VOLUME +/–

Press to adjust the wireless speaker volume.

D

2 SURROUND MODE buttons

Press to switch the surround mode.

VOLUME

DV D

TV

MUSICCINEMA

MUTE

4

W.STEREO

W. STEREO

INPUT AT TWIRELESS OFF

5

4 MUTE

Press to mute/restore sound from the wireless speaker.

5 INPUT ATT

Press to attenuate high level signals to

3 WIRELESS OFF

Press to switch off sound from the wireless speaker (the TV or mini component outputs sound in stereo). Use one of the SURROUND MODE buttons to enjoy surround sound from

prevent distortion from the wireless speaker (press again to switch the attenuator off).

You can set the input attenuator on or off separately for the DVD and TV inputs.

the wireless speaker again.

E

Note

• The DVD input is automatically selected when WIRELESS OFF is pressed.

F

78

1234

XW-HT1

Pioneer XWHT-1 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

XW-HT1

SAFETY INFORMATION

CONTENTS

1. SPECIFICATIONS

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING SECTION

2.2 TRANSMITTER SECTION

2.3 WIRELESS SPEAKER SECTION

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

3.2 OVERALL WIRING DIAGRAM

3.3 DSP(1/2) and DSP-LED ASSYS

3.4 DSP(2/2) ASSY

3.5 AMP, PRIMARY, BINDER and LED ASSYS

3.6 TX MODULE(1/3)

3.7 TX MODULE(2/3)

3.8 TX MODULE(3/3)

3.9 RX MODULE(1/4)

3.10 RX MODULE(2/4)

3.11 RX MODULE(3/4)

3.12 RX MODULE(4/4)

3.13 WAVEFORMS

4. PCB CONNECTION DIAGRAM

4.1 DSP ASSY

4.2 DSP-LED ASSY

4.3 AMP and BINDER ASSY

4.4 PRIMARY and AMP-LED ASSYS

4.5 TX MODULE

4.6 RX MODULE

5. PCB PARTS LIST

6. ADJUSTMENT

7. GENERAL INFORMATION

7.1 DIAGNOSIS

7.1.1 DIAGNOSIS NOTE

7.1.2 TROUBLESHOOTING

7.1.3 POWER ON SEQUENCE

7.1.4 NOTES ON REPLACE OF PARTS

7.1.5 DIAGNOSIS OF THE AMPLIFIER SECTION

7.1.6 PROTECTION CIRCUIT

7.1.7 DISASSEMBLY

7.1.8 The style of a wire rod

7.2 IC

8. PANEL FACILITIES