Pioneer X-HM10, X-HM20 Schematic

4 (1)

X-HM20-K

ORDER NO.

RRV4220

CD Receiver System

X-HM20-K

X-HM20-S

X-HM10-K

X-HM10-S

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

Model

Type

Power Requirement

Serial No.

Remarks

 

 

 

 

 

 

 

 

 

X-HM20-K

SYXJC8

AC 220 V to 240 V

&&&#####YY

YY: Europe

 

 

 

 

 

 

 

 

 

X-HM20-S

SYXJC8

AC 220 V to 240 V

&&&#####YY

YY: Europe

 

 

 

 

 

 

 

 

 

X-HM10-K

SYXJC8

AC 220 V to 240 V

&&&#####YY

YY: Europe

 

 

 

 

 

 

 

 

 

X-HM10-S

SYXJC8

AC 220 V to 240 V

&&&#####YY

YY: Europe

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, 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 2011

K-IZV SEPT. 2011 Printed in Japan

 

1

 

2

 

3

 

4

 

 

 

 

 

 

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

BThis product may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive harm.

Health & Safety Code Section 25249.6 - Proposition 65

IMPORTANT

THIS PIONEER APPARATUS CONTAINS LASER OF CLASS 1.

SERVICING OPERATION OF THE APPARATUS

CS H O U L D B E D O NE B Y A S P E C I A L LY INSTRUCTED PERSON.

Laser Pickup specifications and Laser characteristics

For CD

Wave length (typ) : 790 nm

 

 

Operation output

: 4 mW CW, Class 1

 

Maximum output

: Class 1

(Under fault condition)

WARNING

The Laser component is capable of emitting radiation exceeding the limit for CLASS 1. A specially instructed person should do servicing operation of the apparatus.

D

LABEL CHECK

E

B

F

2

X-HM20-K

 

1

 

2

 

3

 

4

 

 

 

 

 

 

 

5

 

6

 

7

 

8

 

 

 

 

CONTENTS

SAFETY INFORMATION..........................................................................................................................................................

2

1. SERVICE PRECAUTIONS ....................................................................................................................................................

4

1.1 NOTES ON SOLDERING ...............................................................................................................................................

4

1.2 WHEN REPLACING CD MECHA UNIT..........................................................................................................................

4

2. SPECIFICATIONS.................................................................................................................................................................

5

3. BASIC ITEMS FOR SERVICE ..............................................................................................................................................

6

3.1 PCB LOCATIONS ...........................................................................................................................................................

6

3.2 JIGS LIST .......................................................................................................................................................................

7

4. BLOCK DIAGRAM ................................................................................................................................................................

8

4.1 OVERALL WIRING DIAGRAM .......................................................................................................................................

8

4.2 OVERALL BLOCK DIAGRAM.......................................................................................................................................

10

5. DIAGNOSIS ........................................................................................................................................................................

11

5.1 TROUBLESHOOTING..................................................................................................................................................

11

5.2 PROTECTION CIRCUIT...............................................................................................................................................

12

6. SERVICE MODE .................................................................................................................................................................

12

7. DISASSEMBLY ...................................................................................................................................................................

13

8. EACH SETTING AND ADJUSTMENT ................................................................................................................................

19

8.1 UPDATING OF THE FIRMWARE .................................................................................................................................

19

9. EXPLODED VIEWS AND PARTS LIST...............................................................................................................................

20

9.1 PACKING SECTION .....................................................................................................................................................

20

9.2 EXTERIOR SECTION ..................................................................................................................................................

22

10. SCHEMATIC DIAGRAM....................................................................................................................................................

24

10.1 MAIN PCB ASSY (1/7) ...............................................................................................................................................

24

10.2 MAIN PCB ASSY (2/7) ...............................................................................................................................................

26

10.3 MAIN PCB ASSY (3/7) ...............................................................................................................................................

28

10.4 MAIN PCB ASSY (4/7) ...............................................................................................................................................

30

10.5 MAIN PCB ASSY (5/7) ...............................................................................................................................................

32

10.6 MAIN PCB ASSY (6/7) ...............................................................................................................................................

34

10.7 MAIN PCB ASSY (7/7) ...............................................................................................................................................

36

10.8 iPOD PCB ASSY (X-HM20 ONLY) .............................................................................................................................

38

10.9 RADIO PCB ASSY .....................................................................................................................................................

40

10.10 DISPLAY PCB ASSY ................................................................................................................................................

42

10.11 KEY-SWITCH PCB ASSY.........................................................................................................................................

44

10.12 HEADPHONE PCB ASSY ........................................................................................................................................

45

10.13 POWER PCB ASSY .................................................................................................................................................

46

10.14 USB PCB ASSY .......................................................................................................................................................

48

11. PCB CONNECTION DIAGRAM ........................................................................................................................................

50

11.1 MAIN and iPOD PCB ASSYS.....................................................................................................................................

50

11.2 DISPLAY and KEY-SWITCH PCB ASSYS .................................................................................................................

54

11.3 RADIO PCB ASSY .....................................................................................................................................................

56

11.4 HEADPHONE and USB PCB ASSYS ........................................................................................................................

57

11.5 POWER PCB ASSY ...................................................................................................................................................

58

A

B

C

D

E

F

X-HM20-K

3

 

5

 

6

 

7

 

8

 

 

 

 

 

 

 

1

 

2

 

3

 

4

 

 

 

 

 

 

1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

A • For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.

Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs accompanied by reworking of soldering.

Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 ºC. Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 ºC in general, although

the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of the soldering iron.

Do NOT use a soldering iron whose tip temperature cannot be controlled.

Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting

Btemperatures (hard to melt/easy to harden).

The following lead-free solders are available as service parts:

Parts numbers of lead-free solder: GYP1006 1.0 in dia.

GYP1007 0.6 in dia. GYP1008 0.3 in dia.

C

1.2 WHEN REPLACING CD MECHA UNIT

D

It is necessary to remove the soldering on the short circuit point after connecting the flexible cable.

E

Short circuit point

F

4

X-HM20-K

 

1

 

2

 

3

 

4

 

 

 

 

 

 

5

2. SPECIFICATIONS

As part of our policy of continuous improvement, PIONEER reserves the right to make design and specification changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these values in individual units.

g General

 

 

 

 

 

Power source

AC 220 V to 240 V, 50 Hz/60 Hz

 

 

 

 

Power

Power on:

 

consumption

45 W (X-HM20)

 

 

30 W (X-HM10)

 

 

Power stand-by: 0.4 W

 

 

 

 

Dimensions

Width: 215 mm

 

 

Height: 99 mm

 

 

Depth: 300 mm

 

 

 

 

Weight

3.8 kg (X-HM20)

 

 

3.7 kg (X-HM10)

 

 

 

 

g Amplifier

Output power

RMS: 15 W + 15 W (1 kHz, 10 %

 

T.H.D., 4 ohms)

 

 

Output terminals

Speakers: 4 ohms

 

20 Hz to 20 kHz

 

Video output (X-HM20 only): 1 Vp-p

 

Headphones: 16 ohms

 

(recommended: 32 ohms)

 

 

Input terminals

Line in (Analog input):

 

500 mV/47 k ohms

 

 

6

 

7

 

8

 

 

g USB

 

 

 

USB host interface

k Complies with USB 1.1 (Full

 

Speed)/2.0 Mass Storage

 

Class.

 

k Support Bulk only and CBI

 

protocol.

 

 

Support file

k MPEG 1 Layer 3

 

k WMA (Non DRM)

 

 

Bitrate support

k MP3 (32 kbps to 320 kbps)

 

k WMA (64 kbps to 160 kbps)

Other

k Maximum total number of

 

MP3/WMA files is 999.

 

k Maximum total number of

 

folders is 99 INCLUSIVE of

 

root directory.

 

k The ID3TAG information

 

supported are TITLE, ARTIST

 

and ALBUM only.

 

k Supports ID3TAG version 1

 

and version 2.

 

 

File system

k Support USB devices with

support

Microsoft Windows/DOS/FAT

 

12/FAT 16/ FAT 32.

 

k 2 kbyte block length for sector.

 

 

g Tuner

Frequency range

FM: 87.5 MHz to 108 MHz

 

AM: 522 kHz to 1,620 kHz

 

 

Preset

40 (FM and AM station)

 

 

g CD player

Type

Single disc multi-play compact disc

 

player

 

 

Signal readout

Non-contact, 3-beam

 

semiconductor laser pickup

 

 

D/A converter

Multi bit D/A converter

 

 

Frequency

20 Hz to 20 000 Hz

response

 

 

 

Dynamic range

90 dB (1 kHz)

 

 

g Speaker

 

X-HM20

 

 

Type

2-way type speaker system

 

5 cm Tweeter

 

10 cm Woofer

 

 

Maximum input

15 W

power

 

 

 

Impedance

4 ohms

 

 

Dimensions

Width: 132 mm

 

Height: 260 mm

 

Depth: 173 mm

 

 

Weight

2.0 kg/each

 

 

 

X-HM10

 

 

Type

2-way type speaker system

 

Piezoelectric Tweeter

 

10 cm Woofer

 

 

Maximum input

15 W

power

 

 

 

Impedance

4 ohms

 

 

Dimensions

Width: 132 mm

 

Height: 260 mm

 

Depth: 158 mm

 

 

Weight

1.6 kg/each

 

 

Accessories

 

 

 

 

 

Power Cord

 

 

 

 

 

(92L20018200101)

 

 

 

 

 

Warranty card

iPhone adapters x3

Remote control

“AA” size battery

AM loop aerial

FM aerial

Operation instructions

(X-HM20 only)

(92L34900101001)

 

(92L50100680101)

(92L28101510501)

(92L43200033101)

 

 

 

 

(92L87500200101)

 

 

 

 

 

(92L43200033201)

 

 

 

 

 

(92L43200033301)

 

 

 

 

 

X-HM20-K

5

A

B

C

D

E

F

 

5

 

6

 

7

 

8

 

 

 

 

 

 

 

1

 

2

 

3

 

4

 

 

 

 

 

 

3. BASIC ITEMS FOR SERVICE

3.1 PCB LOCATIONS

A

 

 

C

RADIO PCB ASSY

G

POWER PCB ASSY

B

iPOD PCB ASSY

 

 

 

 

 

 

 

 

 

(X-HM20 ONLY)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

Bottom view

 

MAIN

A

 

 

 

 

 

PCB ASSY

 

 

 

C

 

USB

H

 

 

 

 

CD MECHA UNIT

 

 

 

 

 

 

PCB ASSY

 

 

 

 

 

LOADER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ASSY

 

 

 

 

 

 

 

 

 

 

 

Bottom view

 

F

 

E

 

D

HEADPHONE

KEY-SWITCH

 

DISPLAY

PCB ASSY

 

PCB ASSY

 

 

 

 

PCB ASSY

D

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.

 

Mark No. Description

Part No.

Mark No. Description

Part No.

 

 

 

 

 

 

 

 

 

 

E LIST OF ASSEMBLIES

 

 

 

 

 

 

 

 

 

 

1..MAIN PCB ASSY (X-HM20)

 

92L36100201011

 

 

1..iPOD PCB ASSY (X-HM20 ONLY)

 

92L36600201010

 

 

1..MAIN PCB ASSY (X-HM10)

 

92L36100101011

 

 

1..KEY-SWITCH PCB ASSY (X-HM20)

 

92L37200201010

>

1..POWER PCB ASSY (X-HM20)

 

92L36800201010

 

 

1..KEY-SWITCH PCB ASSY (X-HM10)

 

92L37200101011

>

1..POWER PCB ASSY (X-HM10)

 

92L36800101010

 

 

 

 

 

 

 

1..DISPLAY PCB ASSY (X-HM20)

 

92L36500201010

 

 

1..CD MECHA UNIT

 

92L28700220301

 

 

1..DISPLAY PCB ASSY (X-HM10)

 

92L36500101010

 

 

1..LOADER ASSY

 

92L5150020071T

 

 

 

 

 

 

1..RADIO PCB ASSY (X-HM20)

 

92L36400201010

 

 

 

 

 

 

 

1..RADIO PCB ASSY (X-HM10)

 

92L36400101010

 

 

 

 

 

 

 

1..HEADPHONE PCB ASSY (X-HM20)

 

92L37100201011

 

 

 

 

 

 

 

1..HEADPHONE PCB ASSY (X-HM10)

 

92L37100101011

 

 

 

 

 

F

1..USB PCB ASSY (X-HM20)

 

92L36900201011

 

 

 

 

 

1..USB PCB ASSY (X-HM10)

 

92L36900101011

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

X-HM20-K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

2

 

3

 

4

 

 

 

 

 

 

5

6

7

8

3.2 JIGS LIST

 

 

 

Lubricants and Glues List

 

A

 

 

 

Name

Part No.

Remarks

 

Adhesive (No. 1600B)

GYL1007

Refer to "7. DISASSEMBLY".

 

B

C

D

E

F

X-HM20-K

7

 

5

 

6

 

7

 

8

 

 

 

 

 

 

 

1

 

2

 

3

 

4

 

 

 

 

 

 

4. BLOCK DIAGRAM

4.1 OVERALL WIRING DIAGRAM

A

C

RADIO PCB ASSY

B(X-HM20: 92L36400201010) (X-HM10: 92L36400101010)

C

F

DHEADPHONE PCB ASSY (X-HM20: 92L37100201011) (X-HM10: 92L37100101011)

E

H

USB PCB ASSY

(X-HM20: 92L36900201011) (X-HM10: 92L36900101011)

F

8

X-HM20-K

A A 1/7- A 7/7

MAIN PCB ASSY (X-HM20: 92L36100 (X-HM10: 92L36100

E K(X (X

 

1

 

2

 

3

 

4

 

 

 

 

 

 

 

5

 

6

 

7

 

8

 

 

 

 

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

 

-

: The power supply is shown with the marked box.

D

 

 

DISPLAY PCB ASSY (X-HM20: 92L36500201010) (X-HM10: 92L36500101010)

(X-HM20 ONLY)

B

iPOD PCB ASSY (92L36600201010)

A

B

C

D

1/7- A 7/7

B ASSY

:92L36100201011)

:92L36100101011)

E KEY-SWITCH PCB ASSY (X-HM20: 92L37200201010) (X-HM10: 92L37200101011)

G

POWER PCB ASSY (X-HM20: 92L36800201010) (X-HM10: 92L36800101010)

E

F

X-HM20-K

9

 

5

 

6

 

7

 

8

 

 

 

 

 

 

Pioneer X-HM10, X-HM20 Schematic

 

1

 

2

 

3

 

4

 

 

 

 

 

 

4.2 OVERALL BLOCK DIAGRAM

A

SPK Terminal Jack

AUX IN Video Out AM Cone FM Coaxial

G POWER PCB ASSY

C RADIO PCB

 

PRIMARY

 

 

AC INLET

ASSY

 

 

 

(JACK701)

(JACK702)

SECTION

 

RELAY

 

 

(JACK703) (CON703) (JACK704)

 

 

F405

 

 

TUNER

 

 

(RL401)

 

 

 

 

 

 

 

 

 

 

 

 

 

Si4730

 

 

 

 

 

 

IC701

 

 

 

SUB.

 

 

 

 

 

 

 

 

 

MAIN TRANS.

TRANS

 

 

 

T401

CON701(4P)

CON702 (12P)

CON704(2P)

 

 

 

 

 

 

 

B

 

F401

F402

F403

F404

~D404

 

 

 

 

 

 

D401

 

 

KBU802

 

D407

 

D411

 

D415

 

D419

 

 

 

 

~D410

 

~D414

 

~D418

 

~D421

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REG.8V

 

 

 

REG.5V

 

 

 

 

 

 

 

IC402

 

 

 

IC401

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CON 401 (11P)

CON 402 (9P)

 

A MAIN PCB ASSY

J6 (4P)

 

J1 (12P)

(10P)

 

 

 

 

 

 

 

 

 

 

 

 

U2

 

 

 

 

Power Supply

 

 

 

C

 

 

U900

 

J11

 

 

 

PI5V331W

 

 

 

8V (Motor Supply)

 

 

 

 

MULTIPLEXER

 

 

 

 

 

 

 

 

 

 

 

POWER AMP IC

 

iPod 5V [U501]

 

 

 

 

 

 

 

 

STA 339BW/S

 

USB 5V [U551]

 

 

 

 

 

 

 

 

 

 

 

AMP IC 18V

 

 

 

 

 

U8

 

 

 

 

 

VDD 3.3V [IC8]

(8P)

 

 

 

 

AUDIO_CODEC

 

 

 

 

VDD1.8V [U4]

 

 

 

 

 

 

 

 

OTHER 3.3V [IC6]

J9

 

 

 

 

WM8781

 

 

 

 

 

 

 

 

 

 

 

 

FL (F1, F2, VP- )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC902

 

IC 1

 

 

 

U5

3(16P)

 

 

 

 

SDRAM

 

OPTEK OTK 5256

 

Philip

 

 

 

 

1Mx16bit

 

Microprocessor

 

SAA7824HL

 

 

 

 

IC 7

 

Audio DSP

 

 

SERVO DSP

CN

 

 

 

 

 

 

 

 

 

 

 

 

 

Audio Decoder

 

 

 

 

 

 

 

FLASH_IC

 

 

(6P)

 

 

 

D

 

 

 

 

 

PU in

 

 

8M

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U7

J13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DRIVER_IC

 

SLIDE

 

 

 

IC13

 

U3

 

IC901

 

SA1469

(5P)

MOTOR

 

 

 

TDA1308

 

 

 

iPod

 

IC800

 

 

 

 

HP AMP

MULTIPLEXER

certification

 

 

 

 

 

 

 

 

FSUSB30MUX

 

 

SA6208

J10

 

PICK UP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPIN

 

 

 

J3(4P)

J12(5P)

J2 (10P)

J5(2P)

J14 (16P)

 

MOTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOADING

 

 

 

 

 

 

 

 

 

 

 

MOTOR

 

 

 

 

 

 

 

 

 

 

 

LOADER ASSY

E

 

 

 

 

 

 

 

 

Open /Close SW

 

 

 

J802 (10P)

J803 (2P)

DOCK CONNECTOR

B iPOD PCB ASSY

(X-HM20 ONLY)

SCN802(4P)

SCN801(6P)

F

USB CONNECTOR

 

HP (JACK801)

 

CON 201 (16P)

 

 

 

 

 

IR

 

FL

 

 

 

 

 

 

DRIVER

 

FL DISPLAY LCD201

 

 

 

 

 

 

 

( IC 201)

 

 

 

 

POWER ON

LED

 

 

 

VOLUME VR

 

 

 

D

 

 

(VOL201)

 

 

 

 

 

 

 

 

FUNCTION

DISPLAY PCB ASSY

SCN201(2P)

 

 

 

KEY BUTTON

 

 

 

PLAY

STOP

UP

DOWN

OPEN/CLOSE

 

 

 

 

 

 

 

 

F

HEADPHONE

H

USB PCB ASSY

 

 

E

KEY-SWITCH PCB ASSY

10

PCB ASSY

 

 

 

 

 

 

 

 

 

 

 

 

 

X-HM20-K

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

2

 

3

 

4

 

 

 

 

 

 

 

5

 

6

 

7

 

8

 

 

 

 

5. DIAGNOSIS

5.1 TROUBLESHOOTING

No Power

 

 

Is the voltage of MCU+5V

No

Check the IC401, D401 to D404, T401, F405

 

(POWER PCB Assy CON402-1 pin)

(POWER PCB Assy). At abnormal, replace

 

 

 

 

 

5 V?

 

 

POWER PCB Assy.

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is the VDD3.3V (MAIN PCB Assy

No

 

 

 

Check the IC8, U4 (MAIN PCB Assy).

 

 

IC8-3 pin), VDD1.8V (MAIN PCB Assy

 

 

At abnormal, replace MAIN PCB Assy.

 

 

U4-5 pin) output?

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

After having pressed STANDBY/ON

 

No

 

 

 

button, is the voltage of RELAY_CTL

 

Check the RELAY_CTL line.

 

(POWER PCB Assy CON402-3 pin) 3.3V

 

 

 

 

 

 

 

 

 

 

and is RELAY (RL401) on?

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Does the voltages output in CON401?

 

 

No

 

 

 

 

 

Check the F401 to F404 power lines.

(POWER PCB Assy: +B: 18V, USB_VCC: 12

V,

 

 

At abnormal, replace POWER PCB Assy.

 

 

iPod_VCC: 12V, +8V)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace MAIN PCB Assy.

 

 

 

 

 

 

 

 

 

 

 

 

A

B

C

Although a CD is inserted and the Tray is closed, "NO DISC" is displayed.

Press the Tray CD Eject Button without inserting a disc, and try starting the playback operation.

1.Does the pickup move to the PICKUP-IN Switch position?

Yes

2. Does the focus (lens) move up and down?

Yes

3. Is the laser lit?

Yes

4. Is the turntable rotating?

Yes

5. Is the Laser power, Focus, Tracking circuit OK?

No

No

No

No

No

Check Sled circuit. U7 (pin 17,18,19,20)

Check Focus peripheral circuit.

U5 (pin 65) U7 (pin 1 to 4)

Check the laser diode at U5 pin 80 and R128 peripheral circuit.

Check Spindle circuit.

U5 (pin 68), U7 (pin 9,10,11,12)

Check the Laser power, Focus, Tracking peripheral circuit. U5 (pin 64, 65, 80), U7 (pin 1 to 4 24 to 27)

D

E

F

X-HM20-K

11

 

5

 

6

 

7

 

8

 

 

 

 

 

 

 

1

 

2

 

3

 

4

 

 

 

 

 

 

5.2 PROTECTION CIRCUIT

The protection circuit is activated when a failure in power or voltage is generated in the D-AMP circuit. If the protection circuit is activated, the unit will shut itself off and the TIMER indicator on the front panel will start flashing. The indicator will continue to

A

flash until the problem is resolved. After a shutdown, to turn the unit back on, unplug the AC power cord then plug it back into the AC outlet.

B

6. SERVICE MODE

There is no information to be shown in this chapter.

C

D

E

F

12

X-HM20-K

 

1

 

2

 

3

 

4

 

 

 

 

 

 

 

5

 

6

 

7

 

8

 

 

 

 

7. DISASSEMBLY

Note:

(1)Do NOT look directly into the pickup lens. The laser beam may cause eye injury.

(2)Even if the unit shown in the photos and illustrations in this manual may differ from your product, the procedures described here are common.

[1] Top Cabinet

(1)Remove the four screws.

(2)Remove the four screws.

(3) Remove the top cabinet.

Note (X-HM20 only):

Please do not damage the cables when removing the top cabinet.

[2] iPOD PCB Assy (X-HM20 only)

(1)Remove the top cabinet.

(See procedure "[1] Top Cabinet".)

(1)Disconnect the one flexible cable and one connectors. (J802, J803)

(2)Remove the two screws.

(3)Remove the iPOD PCB Assy.

1

1

1

1

2 2

2

2

 

• Rear view

3

Top cabinet

Top cabinet

iPOD PCB Assy

3

22

J803 J802

1 1

• Bottom view

X-HM20-K

13

A

B

C

D

E

F

 

5

 

6

 

7

 

8

 

 

 

 

 

 

 

1

 

2

 

3

 

4

 

 

 

 

 

 

A [3] Front Panel Section

(1)Remove the top cabinet.

(See procedure "[1] Top Cabinet".)

(1)Remove the two screws.

(2)Remove the two screws.

(3)Unhook the two hooks.

3

3

1

1

2

2

• Bottom view

B

(4)

Disconnect the one flexible cable and three

 

MAIN PCB Assy

 

 

 

 

connectors. (J3, J5, J12, J14)

 

 

 

 

 

 

 

 

(5)

Release the jumper wires from hook.

 

 

 

 

 

 

 

 

(6)

Remove the one screw.

4

J3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

J14

 

 

4

J12

 

 

 

 

 

J5

 

 

 

 

 

 

C

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

4

(7)

Remove the volume knob.

 

(8) Remove the nut and washers.

D (9)

Remove the front panel section.

 

 

 

 

 

 

(10) Remove the two screws.

E(11) Remove the 12 screws.

(12)Remove the DISPLAY, KEY-SWITCH, HEADPHONE and USB PCB Assemblies.

F

Volume knob

7 8

9

Front panel section

HEADPHONE PCB Assy

KEY-SWITCH PCB Assy

 

 

10 USB PCB Assy

11

 

11

11

 

 

 

 

10

 

 

 

 

 

 

 

11

 

 

 

 

 

 

11

12

11

12

11

12

11

 

 

11

 

 

 

11

 

11

 

12

 

11

 

 

 

 

DISPLAY PCB Assy

14

X-HM20-K

 

1

 

2

 

3

 

4

 

 

 

 

 

 

 

5

 

6

 

7

 

8

 

 

 

 

 

 

How to open the tary when the power cannot be on

 

A

(1)

Insert the thin minus screwdriver to the slit.

 

 

 

 

 

Thin minus screwdriver

(2)

Slide the lever in the arrow direction.

 

 

 

(3)

Pull out the tray by hand.

 

 

 

 

 

 

 

Slit

 

 

 

 

 

 

 

 

 

 

 

 

1

2

 

2

1

B

 

3

 

Lever

• Bottom view

Tray Thin minus screwdriver

[4] RADIO PCB Assy

C

(1)Remove the top cabinet.

(See procedure "[1] Top Cabinet".)

(1)Remove the five screws.

(2)Disconnect the one flexible cable and one connectors. (J1, J6)

(3)Remove the RADIO PCB Assy.

1 1 1 1 1

D

• Rear view

MAIN PCB Assy

2

J6

E

J1

2

3

F

RADIO PCB Assy

X-HM20-K

15

 

5

 

6

 

7

 

8

 

 

 

 

 

 

 

1

 

2

 

3

 

4

 

 

 

 

 

 

A[5] POWER PCB Assy

(1)Remove the top cabinet.

(See procedure "[1] Top Cabinet".)

(1)Remove the two screws.

B

(2) Remove the one screw.

C

1

1

• Bottom view

2

• Rear view

D

(3) Remove the three screws.

POWER PCB Assy

3

3 3

E

(4)Remove the two screws.

(5)Disconnect the two connectors. (J9, J11)

(6)Remove the POWER PCB Assy.

F

16

MAIN PCB Assy

4 4

J9 J11

6 5 5

POWER PCB Assy

X-HM20-K

 

1

 

2

 

3

 

4

 

 

 

 

 

 

 

5

 

6

 

7

 

8

 

 

 

 

[6] MAIN PCB Assy, LOADER Assy, CD MECHA Unit

(1)Remove the top cabinet.

(See procedure "[1] Top Cabinet".)

(2)Remove the front panel section.

(See procedure "[3] Front Panel Section".)

(1)Disconnect the two flexible cables and five connectors. (J1, J6, J9, J10, J11, J13, J19)

(2)Remove the four screws.

(3)Remove the MAIN PCB Assy.

MAIN PCB Assy

 

2

1

 

2

 

 

 

 

 

 

 

J1

1

J11

1

 

 

 

 

1

J6

 

J19

 

 

 

 

 

 

J9

1

 

 

 

 

J13

1

 

 

 

3

J10

1

2

2

(4)Remove the three screws.

(5)Remove the LOADER Assy.

4

4

5

4

LOADER Assy

A

B

C

D

E

F

X-HM20-K

17

 

5

 

6

 

7

 

8

 

 

 

 

 

 

 

1

 

2

 

3

 

4

 

 

 

 

 

 

A(6) Remove the four screws.

(7) Remove the CD MECHA Unit.

Note:

Removal of the disc tray cover is not required during disassembly/reassembly of the front panel section, because this cover does not interfere with the front panel.

B

C

D

CD MECHA Unit

6

6

7

6

6

• Bottom view Disc tray cover

The Application Position of Adhesive

X-HM20 ONLY

Adhesive (No.1600B)

GYL1007

E

Adhesive (No.1600B)

GYL1007

F

Ferrite core

iPOD PCB Assy

RADIO PCB Assy

Gasket

18

 

 

 

 

 

 

 

X-HM20-K

 

 

 

 

 

 

 

 

 

1

 

2

 

3

 

4

 

 

 

 

 

 

Loading...
+ 41 hidden pages