PIONEER DEH-4000UB, DEH- 3050UB Service Manual

CD RDS RECEIVER

ORDER NO.

CRT4052

DEH-4000UB/XS/EW5

DEH-4000UB

CD RECEIVER

DEH-3050UB
DEH-3050UB

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

Model No. Order No. Mech.Module Remarks

CX-3240 CRT4050 S10.5COMP2-iPod/USB CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly

/XS/ES

/XU/CN5

/XS/EW5

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

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 2007

K-ZZA. NOV. 2007 Printed in Japan

1234

SAFETY INFORMATION

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

A

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.

- Safety Precautions for those who Service this Unit.
When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable
results.

B

Caution:

1. During repair or tests, minimum distance of 13 cm from the focus lens must be kept.

2. During repair or tests, do not view laser beam for 10 seconds or longer.

CAUTION:

USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

C

CLASS 1

D

The AEL (accessible emission level )of the laser power output is less than CLASS 1
but the laser component is capable of emitting radiation exceeding the limit for
CLASS 1.

E

A specially instructed person should do servicing operation of the apparatus.

LASER PRODUCT

WARNING!

Laser diode characteristics

Wave length : 785 nm to 814 nm

Maximum output : 1 190 W(Emitting period : unlimited)

Additional Laser Caution

Transistors Q101 in PCB drive the laser diodes.

F

2

When Q101 is shorted between their terminals, the laser diodes will radiate beam.
If the top cover is removed with no disc loaded while such short-circuit is continued,
the naked eyes may be exposed to the laser beam.

DEH-4000UB/XS/EW5

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CAUTION

Danger of explosion if battery is incorrectly replaced.
Replaced only with the same or equivalent type recommended by the manufacture.

Discord used batteries according to the manufacture's instructions.

A

B

C

D

E

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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.

A

B

C

D

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.

a 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.

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.

E

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.

F

4

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CONTENTS

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

1. SERVICE PRECAUTIONS................................................................................................................................6

1.1 SERVICE PRECAUTIONS.........................................................................................................................6

1.2 NOTES ON SOLDERING...........................................................................................................................6

2. SPECIFICATIONS.............................................................................................................................................7

2.1 SPECIFICATIONS ......................................................................................................................................7

2.2 DISC/CONTENT FORMAT.........................................................................................................................9

2.3 PANEL FACILITIES ..................................................................................................................................10

2.4 CONNECTION DIAGRAM........................................................................................................................13

3. BASIC ITEMS FOR SERVICE........................................................................................................................15

3.1 CHECK POINTS AFTER SERVICING.....................................................................................................15

3.2 PCB LOCATIONS.....................................................................................................................................15

3.3 JIGS LIST.................................................................................................................................................16

3.4 CLEANING ...............................................................................................................................................16

4. BLOCK DIAGRAM ..........................................................................................................................................18

4.1 BLOCK DIAGRAM....................................................................................................................................18

5. DIAGNOSIS ....................................................................................................................................................23

5.1 OPERATIONAL FLOWCHART.................................................................................................................23

5.2 ERROR CODE LIST.................................................................................................................................24

5.3 CONNECTOR FUNCTION DESCRIPTION .............................................................................................26

6. SERVICE MODE.............................................................................................................................................27

6.1 CD TEST MODE.......................................................................................................................................27

7. DISASSEMBLY...............................................................................................................................................30

8. EACH SETTING AND ADJUSTMENT............................................................................................................35

8.1 PCL OUTPUT CONFIRMATION ..............................................................................................................35

8.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT ....................................................36

9. EXPLODED VIEWS AND PARTS LIST ..........................................................................................................38

9.1 PACKING..................................................................................................................................................38

9.2 EXTERIOR(1)...........................................................................................................................................40

9.3 EXTERIOR(2)...........................................................................................................................................42

9.4 CD MECHANISM MODULE.....................................................................................................................44

10. SCHEMATIC DIAGRAM................................................................................................................................46

10.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)............................................................................46

10.2 KEYBOARD UNIT ..................................................................................................................................52

10.3 CD MECHANISM MODULE(GUIDE PAGE)...........................................................................................54

10.4 WAVEFORMS.........................................................................................................................................60

11. PCB CONNECTION DIAGRAM ....................................................................................................................64

11.1 TUNER AMP UNIT .................................................................................................................................64

11.2 KEYBOARD UNIT...................................................................................................................................68

11.3 CD CORE UNIT(S10.5COMP2-USB).....................................................................................................70

12. ELECTRICAL PARTS LIST...........................................................................................................................72

A

B

C

D

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1. SERVICE PRECAUTIONS

1.1 SERVICE PRECAUTIONS

A

- Service Precaution

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

2. Before disassembling the unit, be sure to turn off
the power. Unplugging and plugging the connectors
during power-on mode may damage the ICs inside
the unit.

3. To protect the pickup unit from electrostatic discharge

B

during servicing, take an appropriate treatment
(shorting-solder) by referring to "the DISASSEMBLY".

4. After replacing the pickup unit, be sure to check the
grating.

5. Be careful in handling ICs. Some ICs such as MOS
type are so fragile that they can be damaged by
electrostatic induction.

6. The sheet (Mechanism cover) can not be reused if you
removed it.

C

1.2 NOTES ON SOLDERING

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 C.

D

Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 C 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.

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

E

GYP1008 0.3 in dia.

F

6

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2. SPECIFICATIONS

2.1 SPECIFICATIONS

- EW5 Model

Backup current

.................................... 5 mA or less

A

B

C

D

E

F

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7

- ES Model

A

B

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Backup current

.................................... 5 mA or less

C

D

E

F

8

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- CN5 Model

Backup current

.................................... 5 mA or less

A

B

C

D

E

2.2 DISC/CONTENT FORMAT

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F

7

8

9

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2.3 PANEL FACILITIES

A

B

C

D

E

F

10

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A

B

C

D

E

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11

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A

B

C

D

E

F

12

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2.4 CONNECTION DIAGRAM

- EW5 Model

A

B

C

D

E

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8

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- ES, CN5 Model

A

B

C

D

E

F

14

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ejected

g

g

g

g

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

To keep the product qualityafter servicing, please confirm followingcheck points.

No. Procedures Item to be c onfirmed

1 Confirm whether the customer complain has been

solved.
If the customer complain occurs with the specific
media, use it for the operation check.

2 CD Play back a CD.

(Track search)

3 FM/AM tuner Check FM/AM tuner action.

(Seek, Preset)
Switch band to check both FM and AM.

4 Check whether no disc is inside the product. The media used for the operating check must be

5 Appearance check No scratches or dirt on its appearance after

See the table below for the items to be checked re

Item to be checked re

Distortion
Noise

Volume too low
Volume too hi
Volume fluctuatin
Sound interrupted

h

ardingaudio

ardingaudio:

The customer complain must not be reappeared.
Display, audio and operations must be normal.

No malfunction on display, audio and operation.
Display, audio and operations must be normal.

Display, audio and operations must be normal.

.

receiving it for service.

A

B

C

3.2 PCB LOCATIONS

CD Core Unit

C

(S10.5COMP2-USB)

Unit Number : YWM5203(EW5)
Unit Number : YWM5205(ES)
Unit Number : YWM5207(CN5)
Unit Name : Tuner Amp Unit
Unit Number : (EW5)
Unit Number : (ES)
Unit Name : Keyboard Unit
Unit Number : (CN5)
Unit Name : Keyboard Unit
Unit Number : CWX3527
Unit Name : CD Core Unit
(S10.5COMP2-USB)

Tuner Amp Unit

A

D

E

Keyboard Unit

B

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7

8

15

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Name

Jig

e

e

e

3.3 JIGS LIST

- Jigs List

Name

A

Test Disc
L.P.F.

- Grease List

Name

m

Grease

B

Grease

3.4 CLEANING

- Jigs List

Name

m

Test Disc

C

Before shipping out the product, be sure to clean the

L.P.F.

following portions by using the prescribed cleaning
tools:

Portions to be cleaned Cleaning tools
CD pickup lenses Cleaning liquid : GEM1004

Jig No.

No.

TCD-782

Grease No.

rease No.

GEM1024
GEM1045

Jig No.

ig No.

TCD-782

Cleaning paper : GED-008

emarks

Remarks

Checking the grating
Checking the grating (Two pieces)

emarks

Remarks

CD Mechanism Module
CD Mechanism Module

emarks

Remarks

Checking the grating
Checking the grating (Two pieces)

- Grease List

Name

Grease
Grease

D

Before shipping out the product, be sure to clean the
following portions by using the prescribed cleaning
tools:

E

Portions to be cleaned Cleaning tools
CD pickup lenses

m

Grease No.

rease No.

GEM1024
GEM1045

Cleaning liquid : GEM1004
Cleaning paper : GED-008

emarks

Remarks

CD Mechanism Module
CD Mechanism Module

F

16

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A

B

C

D

E

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K

M

V

W

1

2

L

F

D

4. BLOCK DIAGRAM

4.1 BLOCK DIAGRAM

A

B

ANTENNA

C

A

TUNER AMP UNIT

CN401

1

2,3

1

3

FM/AM TUNER UNIT

AM ANT

FM ANT

ATT

ATT

ANT adj

FMRF

FMRF

RF adj

VDD

SL

3.3V

TUNPDI

SL

5V 3.3V

3.3V 2.5V

TUNPCK

DI

IC5

→

IC4

→

VDD3.3V

VCC

CE1

LDET

CK

CE1

LDET

2.5V

CE2

76 13 5 1098 11 14 18192021

NC

CE2

ROM_VDD

IC3 EEPROM

5.0V

OSC

LPF

IC1

3.3V

MIXER, IF AMP

T51

CF52

RFGND

OSCGND

DGND

212 1522 16 4 17

AUDIOGNDNCVCC

VDD_3.3

TUNPDO

DO

RDS_CK

RDS_DATA

RDS_LOCK

RDS_HSLK

DET, FM MPX,

RDS DECODER

IC2

2.5V

Lch

23

A

V

TUNL

CDL

AUXL

AUXGND

D

PICKUP UNIT
(P10.5)(SERVICE)

LASER
DIODE

E

F

MONITOR

DIODE

LOAD/

HOLOGRAM

UNIT

FOCUS ACT.

TRACKING ACT.

SPINDLE

MOTOR

CARRIAGE

MOTOR

34
94

23

22

SYSTEM

CONTROLLER

IC 601(2/2)
PEG475A:
PEG409A:

KEYD

KEYAD

CDRST

VDCONT

A
B ,

C

MUTE

SYSPW

SYNC

USBCTL

FLG

ILMPW

ROT0

ROT1

JOYST

SWVDD

DPDT

KYDT

DSENS

40

48

B.UP

28

24

25

51

4

3

82

49

35

36

19

USB5V REGU

BD9781H

1

7

B. UP

VST,VC

IC501

VIN

EN

VDD

S

F

IN

IL

Q84

Q84

A :

DEH-4000UB/XS/EW5

B :

DEH-3050UB/XS/ES

C :

DEH-3050UB/XU/CN5

A

CD CORE UNIT(S10.5COMP2-USB)

C

RF-AMP, CD DECODER,

MP3/WMA DECODER,

DIGITAL SERVO / DATA PROCESSOR CPU,

USB HOST CONTROLLER

CD

TD,FD

SD,MD

22

LOEJ

21

CLCONT

9

CONT

S901

HOME

141

LD

142

PD

133

REFOUT

IC201

PE5611B

28

LOEJ

20

CLCONT

41

CONT

8

12EJ

7

8EJ

10

DSCSNS

9

HOME

USBXTAL

/USBXTAL

/PUEN

LOUT

/RESET

XTAL

/XTAL

VDSENS

DP

DM

1

X205

48MHz

2

VCC

39

5

4

55

VDD2

VDD

16

BRST,BRXEN,BSRQ

BDATA,BSCK

50

X201

16.93MHz

52

11

Q102

VD

VD

Q101

S905

VDD2

REFO

AC,BD,E,F

DRIVER

IC301

BA5839FP

12

FOM

11

FOP

14

TOP

13

TOM

16

SOP

15

SOM

18

LCOP

17

LCOM

8EJ

S903

DSCSNS

CN101

LD-

15

15

MD

5

5

VREF

88

FOM

FOM

33

FOP

FOP

2

2

TOP

TOP

1

1

TOM

TOM

44

LD+

14

14

M

M

S904
12EJ

REAR

AUX

WIRED

REMOTE

VDD2

CN701

DM

LOUT

VDD

/RESET

CN621

6

AUXL

5

AUXGND

4

3

KEY1

2

KEY2

1

CN701

DP

DP

4

16

DM

3

17

CDL

7

13

E

D

CD 3.3V REGULATOR

CDVDD

3

IC702

9

11

NJM2885DL1-33

CDRST

12

8

VD

2

1

BRST,BRXEN,BSRQ,BDATA,BSCK

Q702

VD

18

19

1

VD 7.5V REGULATOR

Q701

VDD

B.UP

18

DEH-4000UB/XS/EW5

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A

CN351

SWL

SYSTEM

CONTROLLER

IC 601(1/2)

A

PEG475A:
PEG409A:

CE2

CE1

TUNPDO

TUNPDI

TUNPCK

LDET

SL

Q401

RDS_CK

ch

23

RDS_HSLK

RDS_DATA

RDS_LOCK

Q402

65

66

68

69

67

74

97

73

78

77

76

TUNPCE2

TUNPCE1

TUNPDI

TUNPDO

TUNPCK

LDET

SL

RCK

RDS57K

RDSDT

RDSLK

B ,

DALMON

BSENS

ASENS

C

XOUT

BZ601

BUZZER

26

PEE

15

XIN

X601

13

15MHz

47

18

75

A

TUNL

CDL

AUXL

AUXGND

2

VDD

S-80835CNMC-B8U

ELECTRONIC VOLUME/

SOURCE SELECTOR

6

IN2_L

7

IN1_L

2

IN5+_L

1

IN5-_L

RESET
IC961

IC151

PML018A

Pre/SW_L

Front_L

Rear_L

1

12

RESET

12

10

11

TELIN

42

FL

C

B ,

VDD REGULATOR

Q931

Q911

BSENS

Q912

B.UP

VDD

ASENS

TEL MUTE

Q951

A

14

12

POWER AMP

FLIN

RLIN

22 4

IC 301

PAL007C

STBYMUTE

VCC

B.REM

25

BUP

6,20

FL-

FL+

RL-

RL+

MUTE

Q351

Q353

SWL

RCFL

5

RCA OUT

6

B

CN901

B.UP

16

16

ACC

TEL

14

9

BACK UP

14

ACC

9

C

15

15

GND

23

21

3

5

FL- FL2

FL+ FL1

RL- RL2

RL+ RL1

BREM

7

7

5

8

6

11

FL−

5

FL+

8

RL−

6

RL+

11

B.REM

VDD

SPW

YNC

FLG

OT0

OT1

PDT

YDT

ENS

MUTE

VST,VCK,VDT

40

UTE

48

USB5V REGULATOR

IC501

BD9781HFP

1

B. UP

VIN

7

EN

INV

ILM

Q841

Q842

VDD

B.UP

28

24

CTL

25

51

PW

4

3

82

YST

49

35

36

19

SW

FB

2
5
6

SWVDD

Q852

IC251

R5523N001B

4

VIN

VOUT

1

EN

3

FLG

D

E

Q851

CN803

5

JOYST

SWVDD

DSENS

US5V

ROT0

ROT1

DPDT

KYDT

ILM+

VCC

11

DM

13

DP

12

10

9

8

3

2

5

6

14

VCC8.4V REGULATOR

2

IC921

NJM2388F84

4

B

KEYBOARD UNIT

CN1801

US5V

11

USDM

13

USDP

12

ILM+

10

ROT0

Phase_B

9

Phase_A

ROT1

8

JOYST

3

SWVDD

2

OPT IN

C

B ,

DPDT

5

KYDT

6

DSENS

14

B.UP

1

B.UP

ROTARY COMMANDER

S1827

10

1

IC1802

GP1UX51RK

REMOTE CONTROL

SENSOR

Q453

3.3V REGULATOR

13

MUTE

Q451

VDD3.3V

IC401

NJM2885DL1-33

ILLUMI

VCC

BACK

GND

CN1802

D

RR

RR

+

−

FR

REM

ACC

FR

+

−

B.

1

2

3

USB

FL

FL

+

−

RL

RL

+

−

UP

E

KEY MATRIX

S1801

S1802

S1803 S1804

SOURSE

LIST

S1810
S Rtrv

KDT1-3

BAND/ESC

S1807

RDM

X0

X1

EJECT

S1805 S1806

DISP/BACK

REGION1

S1809

S1808

VDD

V3

REM

SI

SO

RPT

KST1-4

LCD DRIVER/

KEY CONTROLLER

IC1801

PD6538A

REGION2

47

46

3

1

57

50

49

(RED)

A ,

B

54

X1801
5MHz

55

LCD

LCD1801

(GREEN)

C

F

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- FM/AM Tuner Unit (EW5)

A

7 6 13 5 10 9 8 11 14 18 19 20 21

NC

CE2

ROM_VDD

DI

SL

CK

CE1

LDET

DO

RDS_CK

RDS_DATA

RDS_HSLK

RDS_LOCK

AM ANT

1

ATT

FM ANT

3

ATT

B

No. Symbol I/O Explain

C

1 AMANT I AM antenna input AM antenna input high impedance AMANT pin is connected with

ANT adj

2 RFGND RF ground Ground of antenna block
3 FMANT I FM antenna input Input of FM antenna 75 ohm Surge absorber
4 VCC power supply The power supply for analog block. D.C 8.4 V ± 0.3 V
5 SL O signal level Output of FM/AM signals level
6 CE2 I chip enable-2 Chip enable for EEPROM ”Low” active
7 NC non connection Not used
8 CE1 I chip enable-1 Chip enable for AF•RF ”High” active

D

9 CK I clock Clock
10 DI I data in Data input
11 LDET O lock detector “Low” active
12 OSCGND osc ground Ground of oscillator block
13 ROM_VDD power supply Power supply for EEPROM pin 13 is connected with a power supply of

14 DO O data out Data output
15 DGND digital ground Ground of digital block
16 NC non connection Not used
17 VDD_3.3 power supply The power supply for digital block. 3.3 V ± 0.2 V
18 RDS_CK O RDS clock Output of RDS clock(2.5 V)
19 RDS_DATA O RDS data Output of RDS data(2.5 V)

E

20 RDS_LOCK O RDS lock Output unit “High” active(2.5 V) (RDS_LOCK turns over by the

21 RDS_HSLK O RDS high speed Output unit “High” active(2.5 V)(RDS_HSLK turns over by the

22 AUDIOGND audio ground Ground of audio block
23 L ch O L channel output FM stereo “L-ch” signal output or AM audio output

24 R ch O R channel output FM stereo “R-ch” signal output or AM audio output

3.3V

IC 5

t

5V

3.3V

IC 4

t

3.3V 2.5V

FMRF

FMRF

RF adj

IC 3 EEPROM

5.0V

OSC

LPF

IC 1

3.3V

MIXER, IF AM P

T51

CF52

RFGND

OSCGND

DGND

212 1522 16 4 17

AUDIOGNDNCVCC

VDD_3.3

an all antenna by way of 4.7 µH. (LAU type inductor) A series circuit
including an inductor and a resistor is connected with RF ground for
the countermeasure against the hum of power transmission line.

micro computer.

external transistor . “Low” active)

lock external transistor. “Low” active)

2.5V

Rch

IC 2

2.5V

DET, FM MPX,

RDS DECODER

24

Lch

23

(DSP-201M-S00B)is necessary.

F

20

1234

DEH-4000UB/XS/EW5

5678

- FM/AM Tuner Unit (ES, CN5)

7 6 13 5 10 9 8 11 14 18 19 20 21

NC

CE2

ROM_VDD

DI

SL

CK

CE1

NC

DO

NCNCNC

NC

A

IC 5

5 V 3.3 V

Rch

IC 2

2.5 V

DET, FM MPX

3.3 V

VDD_3.3

2.5 V

Lch

1

3

AM ANT

FM ANT

AT T

AT T

ANT adj

FMRF

FMRF

RF adj

IC 3 EEPROM

5.0 V

OSC

LPF

IC 1

3.3 V

MIXER, IF AM P

T51

CF52

RFGND

OSCGND

DGND

212 1522 16 4 17

AUDIOGNDNCVCC

No. Symbol I/O Explain

1 AMANT I AM antenna input AM antenna input high impedance AMANT pin is connected with

an all antenna by way of 4.7 µH. (LAU type inductor) A series circuit
including an inductor and a resistor is connected with RF ground for

the countermeasure against the hum of power transmission line.
2 RFGND RF ground Ground of antenna block
3 FMANT I FM antenna input Input of FM antenna 75 ohm Surge absorber

(DSP-201M-S00B) is necessary.

4 VCC power supply The power supply for analog block. D.C 8.4 V ± 0.3 V
5 SL O signal level Output of FM/AM signals level
6 CE2 I chip enable-2 Chip enable for EEPROM ”Low” active
7 NC non connection Not used

8 CE1 I chip enable-1 Chip enable for AF•RF ”High” active
9 CK I clock Clock

10 DI I data in Data input
11 NC non connection Not used
12 OSCGND osc ground Ground of oscillator block
13 ROM_VDD power supply Power supply for EEPROM pin 13 is connected with a power supply of

micro computer.

14 DO O data out Data output
15 DGND digital ground Ground of digital block
16 NC non connection Not used
17 VDD_3.3 power supply The power supply for digital block. 3.3 V ± 0.2 V
18 NC non connection Not used
19 NC non connection Not used
20 NC non connection Not used
21 NC non connection Not used
22 AUDIOGND audio ground Ground of audio block
23 L ch O L channel output FM stereo “L-ch” signal output or AM audio output

24 R ch O R channel output FM stereo “R-ch” signal output or AM audio output

24

23

B

C

D

E

56

DEH-4000UB/XS/EW5

F

7

8

21

1234

- LCD(YAW5091)

A

B

C

D

E

SEGMENT

F

22

1234

DEH-4000UB/XS/EW5

COMMON

5678

5. DIAGNOSIS

5.1 OPERATIONAL FLOWCHART

Power ON

Vcc = 5 V
Pin 16

A

bsens

Pin 18

bsens = L

asens

Pin 75

asens = L

DSENS
Pin 19

DSENS = L

ASENBO H
Pin 40

B

C

D

Starts communication with Grille microcomputer.

300 ms

SWVDD

H

Pin 49

300 ms

In case of the above signal, the communication

Source keys
operative

with Grille microcomputer may fail.
If the time interval is not 300 msec, the oscillator
may be defective.

Source ON

SYSPW H
Pin 48

Completes power-on operation.(After that, proceed to each source operation.)

DEH-4000UB/XS/EW5

56

E

F

7

8

23

1234

5.2 ERROR CODE LIST

- Error Messages

A

B

C

D

E

If a CD is not operative or stopped during operation due to an error, the error mode is turned on and cause(s) of
the error is indicated with a corresponding number. This arrangement is intended at reducing nonsense calls from
the users and also for facilitating trouble analysis and repair work in servicing.

(1) Basic Indication Method

1) When SERRORM is selected for the CSMOD (CD mode area for the system), error codes are written to DMIN
(minutes display area) and DSEC (seconds display area). The same data is written to DMIN and DSEC. DTNO
remains in blank as before.

2) Head unit display examples
Depending on display capability of LCD used, display will vary as shown below. xx contains the error number.

8-digit display 6-digit display 4-digit display

ERROR-xx ERR-xx E-xx

(2) Error Code List

Code
10

Class Displayed error code Description of the code and potential cause(s)
Electricity Carriage Home NG CRG can't be moved to inner diameter.

SERVO LSI Com­munication Error -> Failure on home switch or CRG move mechanism.

11 Electricity Focus Servo NG Focusing not available.

12 Electricity Spindle Lock NG Spindle not locked. Sub-code is strange (not readable).

Subcode NG -> Failure on spindle, stains or damages on disc, or excessive vibrations.

17 Electricity Setup NG AGC protection doesn't work. Focus can be easily lost.

30 Electricity Search Time Out Failed to reach target address.

44 Electricity ALL Skip Skip setting for all track.

50

Mechanism

CD On Mech Error Mechanical error during CD ON.

A0 System Power Supply NG Power (VD) is ground faulted.

Remarks: Mechanical errors are not displayed (because a CD is turned off in these errors).

Unreadable TOC does not constitute an error. An intended operation continues in this case.
Upper digits of an error code are subdivided as shown below:
1x: Setup relevant errors, 3x: Search relevant errors, Ax: Other errors.

CRG can't be moved from inner diameter.

Communication error between microcomputer and SERVO LSI.

-> Stains on rear side of disc or excessive vibrations on REWRITABLE.

A disc not containing CD-R data is found.
Turned over disc are found, though rarely.
CD signal error.

-> Damages or stains on disc, or excessive vibrations on REWRITABLE.

-> CRG tracking error or damages on disc.

(CD-R/RW)

-> Defective loading motor, mechanical lock and mechanical sensor.

-> Failure on SW transistor or power supply (failure on connector).

F

24

1234

DEH-4000UB/XS/EW5