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

ORDER NO.

CRT4052

DEH-4000UB/XS/EW5

CD RDS RECEIVER

DEH-4000UB/XS/EW5

CD RECEIVER

DEH-3050UB/XS/ES

DEH-3050UB/XU/CN5

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

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

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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

Arepair 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 OTHERTHANTHOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

C

D

CLASS 1

LASER PRODUCT

WARNING!

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.

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

E

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.

FWhen 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.

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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.

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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	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.

B3 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.

CIn 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.

Da 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.

Make sure the proper amount is applied.

E

4. Cleaning

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

5. Shipping mode and Shipping screws

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

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	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

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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

Bduring 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.
D		Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 C.
		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.

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2. SPECIFICATIONS

2.1SPECIFICATIONS

-EW5 Model

A

Backup current

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

B

C

D

E

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- ES Model

A

Backup current

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

B

C

D

E

F

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- CN5 Model

A

Backup current

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

B

C

D

E

2.2 DISC/CONTENT FORMAT

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2.3 PANEL FACILITIES

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B

C

D

E

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B

C

D

E

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B

C

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2.4CONNECTION DIAGRAM

-EW5 Model

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B

C

D

E

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- ES, CN5 Model

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B

C

D

E

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3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

To keep the product quality after servicing, please confirm following check points.

No.		Procedures	Item to be confirmed
1		Confirm whether the customer complain has been	The customer complain must not be reappeared.
		solved.	Display, audio and operations must be normal.
		If the customer complain occurs with the specific
		media, use it for the operation check.
2	CD	Play back a CD.	No malfunction on display, audio and operation.
		(Track search)	Display, audio and operations must be normal.
3	FM/AM tuner	Check FM/AM tuner action.	Display, audio and operations must be normal.
		(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
			ejected.
5		Appearance check	No scratches or dirt on its appearance after
			receiving it for service.

See the table below for the items to be checked regarding audio:

Item to be checked regarding audio

Distortion

Noise

Volume too low

Volume too high

Volume fluctuating

Sound interrupted

A

B

C

3.2 PCB LOCATIONS

C CD Core Unit

(S10.5COMP2-USB)

			D
	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	E
	Unit Name	: CD Core Unit
		(S10.5COMP2-USB)

A Tuner Amp Unit

B Keyboard Unit

F

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3.3 JIGS LIST

- Jigs List

Name

Jig No.

A

Remarks

Test Disc

TCD-782

Checking the grating

L.P.F.

Checking the grating (Two pieces)

	- Grease List
			Name		Grease No.
							Remarks
B		Grease			GEM1024		CD Mechanism Module
		Grease			GEM1045		CD Mechanism Module

	3.4 CLEANING
	- Jigs List
	Name	Jig No.	Remarks
	Test Disc	TCD-782	Checking the grating
C	Before shipping out the product, be sure to clean the		Checking the grating (Two pieces)
	L.P.F.
	following portions by using the prescribed cleaning
	tools:
	Portions to be cleaned	Cleaning tools
	CD pickup lenses	Cleaning liquid : GEM1004
		Cleaning paper : GED-008
	- Grease List
	Name	Grease No.	Remarks
	Grease	GEM1024	CD Mechanism Module
	Grease	GEM1045	CD Mechanism Module
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	Cleaning liquid : GEM1004
		Cleaning paper : GED-008

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B

C

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4. BLOCK DIAGRAM

4.1 BLOCK DIAGRAM

A TUNER AMP UNIT

FM/AM TUNER UNIT

ANTENNA CN401		AM ANT	FMRF
1
	1	ATT

2,3

FM ANT

3 ATT FMRF

RF adj

ANT adj

3

4

VDD

TUNPDI TUNPCK

CE1

LDET

TUNPDO

CE2

SL

7

6

13

5

10

9

8

11

14

18

19

20

21

NC

CE2

ROM VDD

SL

DI

CK

CE1

LDET

DO

RDS CK

RDS DATA

RDS LOCK

RDS HSLK

IC3 EEPROM

IC5

5.0V

5V →3.3V

OSC

LPF

IC2

IC1

2.5V

3.3V

Lch 23

MIXER, IF AMP

DET, FM MPX,

RDS DECODER

OSCGND

AUDIOGND

T51

CF52

RFGND

DGND

NC

VCC

3.3VDD

IC4

2

12

15

22

16

4

17

3.3V

3.3V →2.5V

2.5V

A

VD

TUNL

CDL

VDD3.3V

VCC

AUXL

AUXGND

A : DEH-4000UB/XS/EW5

SYSTEM

CONTROLLER

B : DEH-3050UB/XS/ES

IC 601(2/2)

PEG475A: A

C : DEH-3050UB/XU/CN5

PEG409A: B , C

CN621

6

REAR

5 AUXL

MUTE

40

AUX

4 AUXGND

WIRED

3 KEY1

34

KEYD

2 KEY2

94

KEYAD

REMOTE

1

A

C CD CORE UNIT(S10.5COMP2-USB)

SYSPW

48

PICKUP UNIT

RF-AMP, CD DECODER,

USB5V REGUL

(P10.5)(SERVICE)

MP3/WMA DECODER,

IC501

DIGITAL SERVO / DATA PROCESSOR CPU,

BD9781HF

LASER

CN101

VDD2

USB HOST CONTROLLER

DIODE

LD- 15

15

141

LD

1

B.UP

1 VIN

Q101

USBXTAL

S

MD

142

X205

SYNC

28

7

F

5

5

PD

EN

REFO

48MHz

IN

VREF

8

8

133

REFOUT

/USBXTAL 2

Q102

HOLOGRAM

AC,BD,E,F

USBCTL

24

VCC

VDD2

25

UNIT

FLG

FOM

FOM

3

3

CD

/PUEN

39

E

FOP

FOP

MONITOR

FOCUS ACT.

2

2

DRIVER

ILM

TRACKING ACT.

TOP

1

1

TOP

CN701

CN701

D

DIODE

TOM

4

4

TOM

IC301

5

DP 16

DP

Q841

IC201

DP

4

B. UP

LD+

BA5839FP

TD,FD

14

14

DM 17

12

FOM

PE5611B

DM

4

3

DM

11

FOP

SD,MD

LOUT

55

LOUT

13

7

CDL

ILMPW

51

14

TOP

13

TOM

VDD2

CD 3.3V REGULATOR

Q842

SPINDLE

M

4

MOTOR

16

VDD 9

CDVDD

3

IC702

1

ROT0

SOP

LOEJ

22

28

LOEJ

VDD

11

VDD

3

15

SOM

21

20

NJM2885DL1-33

ROT1

LOAD/ CARRIAGEMOTOR

M

18

LCOP

CLCONT

CLCONT

17

CONT

9

41

CONT

82

LCOM

/RESET

16

/RESET

8

12

CDRST

23

CDRST

JOYST

BRST,BRXEN,BSRQ

BRST,BRXEN,BSRQ,BDATA,BSCK

8

12EJ

BDATA,BSCK

Q702

VD 7.5V REGULATOR

VDD

7

8EJ

VD

VD

10

DSCSNS

50

VD

2

18

Q701

B.UP

SWVDD

49

9

HOME

XTAL

1

19

S904

S905

S901

X201

/XTAL

52

16.93MHz

12EJ

8EJ

HOME

22

VD

VDCONT

S903

DPDT

35

11

DSCSNS

VDSENS

36

KYDT

DSENS

19

18

DEH-4000UB/XS/EW5

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2

3

4

5

6

7

8

A

MUTE

CN351

SWL

SWL

5

SYSTEM

Q351

RCA OUT

CONTROLLER

IC 601(1/2)

BZ601

FL

RCFL

6

PEG475A: A

PEG409A: B , C

BUZZER

Q353

26

CE2

65

PEE

B , C

TUNPCE2

CE1

66

TUNPCE1

TUNPDO

68

TUNPDI

XIN

15

B

TUNPDI

69

TUNPDO

X601

TUNPCK

67

13

TUNPCK

XOUT

15MHz

VDD REGULATOR

LDET

74

LDET

Q911

VDD

SL

97

Q912

SL

Q401

RDS_CK

73

RCK

DALMON

47

Lch 23

RDS_HSLK

78

RDS57K

BSENS

B.UP

CN901

RDS_DATA

Q402

77

BSENS

18

B.UP

16

16

BACK UP

RDSDT

Q931

75

ACC

RDS_LOCK

ASENS

14

14

ACC

76

RDSLK

ASENS

A

TEL MUTE

RESET

Q951

VDD

2

IC961

1

12

RESET

TELIN

42

TEL

9

9

A

S-80835CNMC-B8U

C

ELECTRONIC VOLUME/

SOURCE SELECTOR

BUP

15

15

GND

TUNL

6

IN2_L

POWER AMP

6,20

12

VCC

FL-

23

FL-

FL2

CDL

7

Pre/SW_L

7

7

IN1_L

21

FL+

FL1

FL−

IC 301

Front_L

10

14

FLIN

FL+

5

5

PAL007C

RL-

3

RL-

RL2

8

8

FL+

11

12

IC151

Rear_L

RLIN

RL+

5

RL+

RL1

6

6

RL−

AUXL

2

PML018A

MUTE

STBY

B.REM

RL+

IN5+_L

22

4

25

BREM 11

AUXGND

1

IN5-_L

11

B.REM

MUTE

Q453

VST,VCK,VDT

B.UP

3.3V REGULATOR

MUTE

VDD3.3V

3

IC401

1

VCC

Q451

NJM2885DL1-33

MUTE

40

D

VCC8.4V REGULATOR

RR

RR

2

IC921

1

−

+

VCC

B.UP

BACK

FR

FR

NJM2388F84

UP

−

+

4

B.

FL

FL

YSPW

48

REM

−

+

GND

ACC

RL

RL

−

+

USB5V REGULATOR

B KEYBOARD UNIT

IC501

BD9781HFP

IC251

R5523N001B

CN803

CN1801

CN1802

1

2

4

VIN VOUT 5

US5V

US5V

B.UP

VIN

SW

11

11

1

SYNC

28

7

FB

5

DM 13

USDM

USB

EN

6

13

2

INV

DP

12

12

USDP

3

BCTL

24

1

EN

25

3

FLG

FLG

ILM

D

E

E

ILLUMI

Q841

ILM+

ILM+

B. UP

10

10

KEY MATRIX

MPW

51

S1801

S1802

S1803

S1804

(RED)

(GREEN)

ROTARY COMMANDER

EJECT

SOURSE

LIST

BAND/ESC

Q842

S1827

S1805

S1806

S1807

OT0

4

ROT0

9

9

ROT0

Phase_B

10

REGION1

DISP/BACK

RDM

A , B

C

ROT1

3

ROT1

8

8

ROT1

Phase_A

1

S1808

S1809

S1810

REGION2

RPT

S Rtrv

OYST

82

JOYST

3

3

JOYST

SWVDD

SWVDD

SWVDD

KST1-4

KDT1-3

VDD

Q851

2

2

VDD

49

47

VDD

X0

54

Q852

OPT IN

IC1802

3

46

V3

X1801

GP1UX51RK

1

57

X1

55

5MHz

B , C

REM

LCD DRIVER/

REMOTE CONTROL

KEY CONTROLLER

F

35

DPDT

5

DPDT

SENSOR

50

IC1801

PDT

5

SI

PD6538A

LCD

YDT

36

KYDT

6

6

KYDT

49

SO

LCD1801

ENS

19

DSENS 14

14 DSENS

DEH-4000UB/XS/EW5

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- FM/AM Tuner Unit (EW5)

7

6

13

5

10

9

8

11

14

18

19

20

21

A

NC

CE2

ROMVDD

SL

DI CK

CE1

LDET

DO

RDS CK

RDSDATA

RDSLOCK

RDSHSLK

IC 3 EEPROM

IC 5

5.0V

5V t3.3V

OSC

LPF

AM ANT

FMRF

1

ATT

Rch 24

IC 2

FM ANT

IC 1

2.5V

3.3V

3

ATT

Lch 23

FMRF

MIXER, IF AM P

B

DET, FM MPX,

RF adj

RDS DECODER

ANT adj

T51

CF52

RFGND

OSCGND

DGND

AUDIOGND

NC

VCC

3.3VDD

IC 4

3.3V

3.3V t2.5V 2.5V

2

12

15

22

16

4

17

C

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

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

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

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

external transistor . “Low” active)

21

RDS_HSLK

O

RDS high speed

Output unit “High” active(2.5 V)(RDS_HSLK turns over by the

lock

external transistor. “Low” active)

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

F

20	DEH-4000UB/XS/EW5

1

2

3

4

5

6

7

8

- FM/AM Tuner Unit (ES, CN5)

7

6

13

5

10

9

8

11

14

18

19

20

21

NC

CE2

VDD

SL

DI CK

CE1

NC

DO

NC

NC

NC

NC

A

_

ROM

IC 3 EEPROM

IC 5

5.0 V

5 V

3.3 V

OSC

LPF

AM ANT

FMRF

1

AT T

Rch 24

IC 2

FM ANT

IC 1

2.5 V

3.3 V

3

AT T

Lch 23

FMRF

MIXER, IF AM P

DET, FM MPX

B

RF adj

ANT adj

T51

CF52

RFGND

OSCGND

DGND

AUDIOGND

NC

VCC

VDD3.3

3.3 V

2.5 V

2

12

15

22

16

4

17

	No.	Symbol	I/O	Explain				C
	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			D
	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			E
	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

F

				DEH-4000UB/XS/EW5					21
						7
	5		6						8

1

- LCD(YAW5091)

A

B

C

D

E

SEGMENT

F

22

1

2

3

4

DEH-4000UB/XS/EW5

2

3

4

5

6

7

8

5. DIAGNOSIS

5.1 OPERATIONAL FLOWCHART

Power ON

Vcc = 5 V

Pin 16

bsens

Pin 18

bsens = L

asens

Pin 75

asens = L

DSENS

Pin 19

DSENS = L

ASENBOH

Pin 40

SWVDDH

Pin 49

Source keys operative

Starts communication with Grille microcomputer.

300 ms

300 ms

In case of the above signal, the communication 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					23
						7
	5		6						8

A

B

C

D

E

F

1 2 3 4

5.2 ERROR CODE LIST

- Error Messages

	A	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

B

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

Class

Displayed error code

Description of the code and potential cause(s)

10

Electricity

Carriage Home NG

CRG can't be moved to inner diameter.

SERVO LSI Com-

CRG can't be moved from inner diameter.

C

munication Error

-> Failure on home switch or CRG move mechanism.

Communication error between microcomputer and SERVO LSI.

11

Electricity

Focus Servo NG

Focusing not available.

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

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.

A disc not containing CD-R data is found.

Turned over disc are found, though rarely.

CD signal error.

17

Electricity

Setup NG

AGC protection doesn't work. Focus can be easily lost.

D

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

30

Electricity

SearchTime Out

Failed to reach target address.

-> CRG tracking error or damages on disc.

44

Electricity

ALL Skip

Skip setting for all track.

(CD-R/RW)

50

Mechanism

CD On Mech Error

Mechanical error during CD ON.

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

A0

System

Power Supply NG

Power (VD) is ground faulted.

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

E

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

UnreadableTOC 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.

F

24	DEH-4000UB/XS/EW5

1

2

3

4