Pioneer DEHP-4300-R, DEHP-4300-RB Service manual

PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS SERVICE 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

C PIONEER CORPORATION 2000

K-ZZB. DEC. 2000 Printed in Japan

ORDER NO.

CRT2578

MULTI-CD CONTROL HIGH POWER CD PLAYER WITH RDS TUNER

DEH-P4300R X1N/EW

DEH-P4300RB X1N/EW

DEH-P4300R/X1N/EW

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

Model No. Order No. Mech. Module Remarks CX-958 CRT2423 S8.1 CD Mech. Module:Circuit Description, Mech. Description, Disassembly

CONTENTS

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

2. EXPLODED VIEWS AND PARTS LIST.......................3

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM.....8

4. PCB CONNECTION DIAGRAM ................................26

5. ELECTRICAL PARTS LIST ........................................34

6. ADJUSTMENT..........................................................39

7. GENERAL INFORMATION .......................................43

7.1 DIAGNOSIS ........................................................43

7.1.1 TEST MODE..............................................43

7.1.2 DISASSEMBLY .........................................47

7.1.3 CONNECTOR FUNCTION DESCRIPTION ...51

7.2 PARTS .................................................................52

7.2.1 IC................................................................52

7.2.2 DISPLAY....................................................57

7.3 OPERATIONAL FLOW CHART ...........................58

8. OPERATIONS AND SPECIFICATIONS.....................59

2

DEH-P4300R,P4300RB

- CD Player Service Precautions

1. For pickup unit(CXX1285) handling, please refer to"Disassembly"(see page 47). During replacement, handling precautions shall be taken to prevent an electrostatic discharge(protection by a short pin).

2. During disassembly, be sure to turn the power off since an internal IC might be destroyed when a connector is plugged or unplugged.

3. Please checking the grating after changing the service pickup unit(see page 41).

1. 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 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.

1. 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.

Caution:

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

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

2. A “CLASS 1 LASER PRODUCT” label is affixed to the bottom of the player.

3. The triangular label is attached to the mechanism unit frame.

4. Specifications of Laser Diode

Specifications of laser radiation fields to which human access is possible during service. Wavelength = 800 nanometers

CLASS 1 LASER PRODUCT

DEH-P4300R,P4300RB

3

1 Cord Assy CDE6435 2 Inner Box CHW1754

* 3 Accessory Assy CEA2397

4 Screw CBA1002 5 Handle CNC5395

6 Bush CNV3930

* 7 Polyethylene Bag E36-615

8 Polyethylene Bag CEG-162 9 Carton(P4300R) CHG4263

Carton(P4300RB) CHG4264

10 Contain Box(P4300R) CHL4263

Contain Box(P4300RB) CHL4264 11 Protector CHP2251 12 Protector CHP2252

13-1 Polyethylene Bag CEG1116

13-2 Owner's Manual CRD3297 13-3 Owner's Manual CRD3298 13-4 Owner's Manual CRD3299 13-5 Installation Manual CRD3308

* 13-6 Passport CRY1013

* 13-7 Warranty Card CRY1157 * 13-8 Caution Card CRP1241

14 Case Assy CXB3520

Mark No. Description Part No. Mark No. Description Part No.

- PACKING SECTION PARTS LIST

NOTE:

- Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List.

- Screws adjacent to

∇ mark on the product are used for disassembly.

- Owner's Manual, Installation Manual

Model Part No. Language DEH-P4300R/X1N/EW CRD3297 English, Spanish DEH-P4300RB/X1N/EW CRD3298 German, French

CRD3299 Italian, Dutch CRD3308 English, Spanish, German, French, Italian, Dutch

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

13

14

10

8

12

11

9

1

2

6

5

7

4

3

4

DEH-P4300R,P4300RB

A

C

B

2.2 EXTERIOR

5

DEH-P4300R,P4300RB

1 Screw BMZ30P040FZK 2 Screw BMZ30P100FMC 3 Screw BSZ26P060FMC 4 Screw BSZ30P060FMC 5 Cord Assy CDE6435

6 Cap CKX-003 7 Cable CDE6444 8 Cord Assy CDE6494 9 Cord Assy CDE6495

10 Fuse(10A) CEK1136

11 IC(IC361) PAL006A 12 Case CNB2686 13 Holder CNC5704 14 Holder CNC8659 15 Cushion CNM4870

16 Insulator CNM6948 17 Panel CNS6332 18 Tuner Amp Unit(P4300R) CWM7377

Tuner Amp Unit

(P4300RB) CWM7380

19 Screw ASZ26P060FMC

20 Screw BPZ26P100FMC 21 Screw BSZ26P160FMC 22 Clamper CEF1007 23 Pin Jack(CN351) CKB1035 24 Plug(CN901) CKM1330

* 25 Plug(CN201) CKS1052

26 Connector(CN701) CKS3408 27 Plug(CN750) CKS3537 28 Connector(CN331) CKS3598 29 Connector(CN501) CKS4398

30 Antenna Jack(CN402) CKX1056 31 Holder(CN403) CNC5399 32 Holder CNC8615 33 Holder CNC9469 34 Insulator CNM6949

35 Heat Sink CNR1583 36 FM/AM Tuner Unit CWE1562 37 Holder CNC8815 38 Chassis Unit(P4300R) CXB6098

Chassis Unit(P4300RB) CXB6099

39

Detach Grille Assy(P4300R) CXB6289 Detach Grille Assy(P4300RB) CXB6292

40 Screw BPZ20P100FZK 41 Button(1-6) CAC6773 42 Knob(VOLUME) CAC6775

43 Button(FUNC/AUDIO) CAC6776 44 Button(SOURCE/DISP) CAC6777 45 Button(EQ) CAC6778 46 Button(SFEQ) CAC6779 47 Button(OPEN) CAC6780

* 48 Badge CAH1754

49 Spring CBH2430 50 Spring CBH2431 51 Spring CBH2491 52 Cover CNS6282

53 Holder CNV6505 54 Holder CNV6506 55 Keyboard Unit(P4300R) CWM7399

Keyboard Unit(P4300RB) CWM7402

56 LCD(P4300R) CAW1624

LCD(P4300RB) CAW1625 57 Connector(CN1901) CKS4205 58 Holder CNC9053 59 Sheet CNM6969 60 Cushion CNM6984

61 Connector CNV6440 62 Lighting Conductor CNV6441 63 Sub Grille Assy(P4300R) CXB7150

Sub Grille Assy(P4300RB)CXB7151 64 Button(EJECT) CAC6839

65 Screw(M2x2) CBA1176 66 Washer CBF1038 67 Washer CBF1039 68 Spring CBH2428 69 Spring CBH2429

70 Spring CBL1512 71 Holder CNC9096 72 Cover CNM6854 73 Panel CNS6278 74 Pin CNV6486

75 Lighting Conductor CNV6487 76 Gear CNV6507 77 Arm CNV6508 78 Panel Unit CWM7375 79 Socket(CN1950) CKS3550

80 Connector(CN1951) CKS4206 81 Damper Unit CXB5070 82 Holder Unit CXB6356 83 Holder Unit CXB6357 84 Clutch Unit CXB6358

85 Screw IMS20P045FZK 86

CD Mechanism Module(S8.1)CXK5201

87 Screw ISS26P055FUC 88 Transistor(Q510,Q910) 2SD2396 89 IC(IC1902) SBX8035-H

90 Film(P4300RB) CNM6983

- EXTERIOR SECTION PARTS LIST

Mark No. Description Part No.

6

DEH-P4300R,P4300RB

D

E

2.3 CD MECHANISM MODULE

7

DEH-P4300R,P4300RB

1 Control Unit CWX2411 2 Connector(CN802) CKS2192 3 Connector(CN801) CKS2193 4 Connector(CN701) CKS2773 5 Connector(CN101) CKS3486

6 Screw BMZ20P030FMC 7 Screw BSZ20P040FMC 8 Screw(M2x3) CBA1077 9 Screw(M2x5) EBA1028

10 Screw CBA1243

11 Screw(M2x4) CBA1362 12 Washer CBF1037 13 Washer CBF1038 14 Washer CBF1060 15 •••••

16 Spring CBH2079 17 Spring CBH2117 18 Spring CBH2314 19 Spring CBH2110 20 Spring CBH2282

21 Spring CBH2318 22 ••••• 23 Spring CBH2324 24 Spring CBH2118 25 Spring CBH2161

26 Spring CBH2163 27 Spring CBH2189 28 Spring CBH2377 29 Spring CBH2260 30 Spring CBH2262

31 Bracket CNC8568 32 Spring CBL1531 33 Connector CDE5531 34 Connector CDE5532 35 Shaft CLA3894

36 Screw(M2.6x6) CBA1458 37 Frame CNC8565 38 Frame CNC8749 39 Lever CNC9265 40 Arm CNC8663

41 Bracket CNC8567 42 ••••• 43 Spacer CNM3315 44 Sheet CNM6659 45 •••••

46 ••••• 47 Ball CNR1189 48 Belt CNT1086 49 Roller CNV4509 50 Arm CNV6037

51 Arm CNV5247 52 Arm CNV5248 53 Arm CNV5249 54 Guide CNV5254 55 Guide CNV5255

56 Gear CNV5257 57 Gear CNV5256 58 Guide CNV6272 59 Damper CNV6010 60 Arm CNV6096

61 Arm CNV6031 62 Arm CNV6211 63 Guide CNV6012 64 Guide CNV5510 65 •••••

66 Guide CNV5751 67 Clamper CNV6013 68 Gear CNV5813 69 Motor Unit(M1) CXB2190 70 Screw Unit CXB5892

71 Chassis Unit CXB4797 72 Gear Unit CXB4728 73 Arm Unit CXB5753 74 Motor Unit(M2) CXB2195 75 Lever Unit CXB4730

76 Arm Unit CXB4731 77 Motor Unit(M3) CXB2562 78 Arm Unit CXB4732 79 Bracket Unit CXB4795 80 Screw JFZ20P025FMC

81 Screw JGZ17P025FZK 82 Washer YE20FUC 83 Pickup Unit(Service)(P8) CXX1285 84 Screw IMS26P030FMC

* 85 PCB CNX2982

86 Photo-transistor(Q1, 2) CPT230SX-TU 87 Damper CNV6011 88 Rack CNV6014 89 Spring CBH2315

Mark No. Description Part No. Mark No. Description Part No.

- CD MECHANISM MODULE SECTION PARTS LIST

Q420

Q415

Q413

Q416

Q710

Q711

Q411

Q481

IC 481

PM4009A

IC 710

HA12187FP

X481

RDS DECODER

IP-BUS DRIVER

1211

20

8

37

MUTE

X1

X2

ILB+

EJECT

CSENS

SW5V

DPDT KYDT

ROT1 ROT0

BL+B

CDLOAD

clamp PEE

64

56

100

EJECT

53

CONT

63

EJTSNS

78

DSCSNS

79

CD5VON

55

VDCONT

57

LCDPW

6

EJECTIN

4

DPDT

96

KYDT

95

ROT0

29

ROT1

25

23 20

SYSTEM

CONTROLLER

IC 601(2/2)

PE5202A

CN402

6

21 18

22 19 12 15 16 8

13 3

2

4

ANT

28

27

BUS—

B.U

BUS+ BUS+L

5

8

1 7

1 2

8

6

5

TX RX

IPPW

SWVDD

77

CSENS

ILMPW

B.U

VDD

B.U

7

10

11 14

12 13

2

8 5

FILM—

6

4

CN750

CN501

CN701

Q751

B.U

Q754

Q755

Q753

Q750

Q752

Q511

Q510

A

TUNER AMP UNIT

FM/AM TUNER UNIT

BZ610

ALARM

BUZZER

16

TEMP

81

X610

TH601

15

17

4

19 20 14

3 2

18

1

FLPILM

9

FILM+

5

1

6

72

mute

S750

CN201

5

Q215

Q216

VDD

IC 212

NJM2068MD

2

1

IC 3

EEPROM

FM/AM 1ST IF 10.7MHz

T51 Q51 CF51

CF52 CF53

IC1

MIXER, IF AMP, DET.

LDET

COMP

CF202

VCC

DI/DO

CE2CKCE1

SDBWSLFMSD

NL1

NL2

IC 2 FM MPX

AMANT

FMANT

ATT

AMRF

FMRF

IMG ADJ

RF ADJ

X901

10.25MHz

ANT ADJ

LOCL

LOCH

AMDET

MPXREF 41kHz

AM 2ND IF

450kHz

CREQ

STIND

L ch

1

14

25

23

Q410

LOCL

VCC

LOCH

VDD

Q414

B.U

5

R ch

7

17 20

24

26

WC

NC

NC FMLOCL RFGND

11

DGND

10

VDD

9

NC

PDIO

CURRQ

mute

Q36

VCC

SYSPW

21

SYSPW

DETACH SENSE SW

M

8

21

6 5

11

22 23

7

24

2

1

4

2

1

3

4

3

FO + TO +

16

23

X201

S801 HOME

S802

CLAMP

CDLOAD

CDEJET

CONT

EJTSNS DSCSNS CD5VON

VD

V+5

VD

FD/TD/SD/MD

97

14

5

4 3

98

16

LD

LIMIT

L.OUT

PD

FOP TOP

SOP

F

MUTE

R

SOM COP COM LOP LOM

6 LOUT

24 39

18

12 11 14 13 10

9

21

D802

DISC SENSE

EJECT

SENSE

LOADING

MOTOR

CARRIAGE

MOTOR

SPINDLE

MOTOR

D801

28 CDEJET

CD5VON

1 CDLOAD

LD +

MD

LD

2

1

HOLOGRAM

UNIT

FOCUS ACT

TRACKING ACT

IC 201

UPD63711GC

IC 301

BA5985FM

CD DRIVER

RF-AMP,SERVO,DSP,DAC,LPF

CN701

CN802

CN801

CN101

5V REGULATOR

IC 701

BA05SFP

PICKUP UNIT(SERVICE)(P8)

D

CONTROL UNIT

E

PHOTO UNIT

(S8)

Q101

8

DEH-P4300R,P4300RB

1

23

4

1234

D

C

B

A

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

C

88

ldet

42

fM/AM

48

11

1

tmute

adpw

bsens

asens

NL2DT

VDD

B.U

NL1

7

8

92

93

83 10

22

SD

SL

SDBW

PCE1

PCK

pce@

PDO

ASENBO

10

Fout L

11

Rout L

IL+B

µGND

CSENS

SW5V

DPDT KYDT

RDT1 RDT0

BL+B

3

7 5 8 6

RL— 5 RL+ 23 FL— 21 FL+

RL— RL+

FL— FL+

12

B.REM

Lch

TEL

10

ILM

13

ACC

16

GND

15

BACK UP

GND

TELIN

isens

AVREF

DALMON

47

75

38

74

TUN L

41

BUS+L

44

CD L

42

49

99

97

32

98

71

86 85 24

FLIN

14

RLIN

12

22 4 25

SYSTEM

CONTROLLER

RESET

POWER AMP

IC 301

PML008A

IC 603

S-80834ANY

IC 361

PAL006A

IC 1902

SBX8035-H

reset

VDD

Q610

Q913

Q914

Q916

Q359

Q351

SYSPW

Q1901 Q1903

Q1904Q1902

Q1905

Q917

TXRXIPPW

ELECTRONIC VOLUME/

SOURCE SELECTOR

B.REMSTBYMUTE

REMOTE CONTROL

SENSOR

IC 1903

PD6294A

LCD DRIVER

KEY MATRIX

LCD

OPT IN

1

9

8

7

10

3 5

6 4

11

7

8

4

5

6

10

11 14

12 13

2

4

3 6

5

10

8

7 9

2

3

DPDT KYDT X0

X1

DIMMER

KEY DATA

LCD DATA

GRN

REMIN

VDD

9 8

3

X1901

2

7

23 10 11

CN1951

CN1901

CN1950

S1950

KEYBOARD UNIT

B

PANEL UNIT

REAR/SW

CN351

ACC

RL— RL+

ILM

TEL

FL— FL+

B.REM

RR—

FR—

FL—

RL—

RR+

FR+

FL+

RL+

BACK UP

ILL

GND

B.REM

ACC

2

CN901

12

AMB

S1922

1

CN331

IC 601(1/2)

PE5202A

5

1

Q909

6

Q915

10

20

MUTE

Q341

HFPW

1

40

IN1L

st

39 46

currq

50 51

LOCL LOCH

VDD

CELLULAR MUTE

P4300R

7 5 8 6

12

10

13

16

15

10

B.U

SYSPW

Q361

Q910

Q911

mute

Q362

Q912

Q918

VCC

EJECT SENSE SW

2

FRONT

9

DEH-P4300R,P4300RB

5

6

78

5

6

78

D

C

B

A

CN1901

CN701

200mA

P

DSP-201M

SYSTEM

CL220PGC

R454

0R0

R455

0R0

R784

392 (1/10W)

R789

R788

R787

4

C765

103

C624

223

C634

472

DETACH

IMH3A

EJECT SENSE SW

ANTENNA

C799

473

>

MIC, TEL

For resistors and capacitors in the circuit diagrams, their resistance values or capacitance values are expressed in codes:

Ex. *Resistors Code Practical value 123 12k ohms 103 10k ohms

*Capacitors Code Practical value 103 0.01uF 101/10 100uF/10V

B

PANEL UNIT

C

KEYBOARD UNIT

D

CONTROL UNIT

FM/AM TUNER UNIT

The the The ide

P4300R

P4300RB

FM(100%):-15.5dBs

AM(30%): -26dBs

CD:+4.1dBs

10

DEH-P4300R,P4300RB

1

23

4

1234

D

C

B

A

3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)

Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS

LIST”.

A-a A-b

A-a

A-b

A-a

Large size

SCH diagram

Guide page

Detailed page

A

A-a

B

11

DEH-P4300R,P4300RB

5

6

78

5

6

78

D

C

B

A

A-b

A

472/16

600µH

>

CEK1136

10A

FUSE

RR—

FR—

FL—

RL—

RR+

FR+

FL+

RL+

BACK UP

ILL

GND

B.REM

ACC

Q918

2SC2412K

R934

103

R935

223

R936

152 (1/4W)

D926

HZS9L(A2)

D320

DAN202U

IMH3A

DTC124EK

222 (1/10W)

R786

102

R781

104

A

TUNER AMP UNIT

e > mark found on some component parts indicates

erefore, when replacing, be sure to use parts of

FM(100%): +6.6dBs

AM(30%): -3.9dBs

CD:+10.2dBs

IP-BUS:+10.3dBs

FM(100%):+32.6dBs

AM(30%):+23.1dBs

CD:+36.2dBs

IP-BUS:+36.3dBs

CD:+9.4dBs

FM(100%):-15.5dBs

AM(30%): -26dBs

CD: +4.1dBs

IP-BUS: +2.2dBs

IP-BUS:+2.2dBs

200mA

PE5202A

DSP-201M

SYSTEM CONTROLLER

R454

0R0

R455

0R0

C624

223

C634

472

ANTENNA

>

MIC, TEL

FM/AM TUNER UNIT

P4300R

P4300RB

FM(100%):-15.5dBs

AM(30%): -26dBs

12

DEH-P4300R,P4300RB

1

23

4

1234

D

C

B

A

A-a

A-b

1

13

DEH-P4300R,P4300RB

5

6

78

5

6

78

D

C

B

A

A-a

A-b

B

2

3

4

CN1901

CN701

CL220PGC

R784

392 (1/10W)

R789

222 (1/10W)

R788

222 (1/10W)

R787

472 (1/10W)

C765

103

DETACH SENSE SW

IMH3A

EJECT SENSE SW

C799

473

For resistors and capacitors in the circuit diagrams, their resistance values or

capacitance values are expressed in codes:

Ex. *Resistors

Code Practical value

123 12k ohms

103 10k ohms

*Capacitors

Code Practical value

103 0.01uF

101/10 100uF/10V

B

PANEL UNIT

C

KEYBOARD UNIT

D

CONTROL UNIT

The > mark found

the importance of t

Therefore, when re

identical designatio

CD:+4.1dBs

14

1

23

4

1234

D

C

B

A

A-a

A-b

DEH-P4300R,P4300RB

472/16

600µH

IMH3A

A

TUNER AMP UNIT

FM(100%): +6.6dBs

AM(30%): -3.9dBs

CD:+10.2dBs

IP-BUS:+10.3dBs

FM(100%):+32.6dBs

AM(30%):+23.1dBs

CD:+36.2dBs

IP-BUS:+36.3dBs

CD:+9.4dBs

FM(100%):-15.5dBs

AM(30%): -26dBs

CD: +4.1dBs

IP-BUS: +2.2dBs

IP-BUS:+2.2dBs

1

15

DEH-P4300R,P4300RB

5

6

78

5

6

78

D

C

B

A

A-b

A-a

A-b

2

3

4

>

CEK1136

10A

FUSE

RR—

FR—

FL—

RL—

RR+

FR+

FL+

RL+

BACK UP

ILL

GND

B.REM

ACC

Q918

2SC2412K

R934

103

R935

223

R936

152 (1/4W)

D926

HZS9L(A2)

D320

DAN202U

DTC124EK

R786

102

R781

104

FM(100%):+32.6dBs

AM(30%):+23.1dBs

CD:+36.2dBs

IP-BUS:+36.3dBs

REMOTE CON

SENSOR

TA

BAND

DOWN

CAW1624

16

DEH-P4300R,P4300RB

1

23

4

1234

D

C

B

A

C

3.3 KEYBOARD UNIT(DEH-P4300R/X1N/EW)

17

DEH-P4300R,P4300RB

5

6

78

5

6

78

D

C

B

A

C

OTE CONTROL

SENSOR

CL170UBX

C

KEYBOARD UNIT

B

CN1951

PANEL UNIT

AUDIOSFEQ

DISPFUNC

EQ

SOURCE

PTY

TA

CH3

CH2 CH1

CH4

CH5

CH6

BAND

DOWN

UP

RIGHT

LEFT

R1927

472

18

DEH-P4300R,P4300RB

1

23

4

1234

D

C

B

A

REMOTE CONTROL

SENSOR

SUPER RED

TA

BAND

DOWN

CAW1625

C

3.4 KEYBOARD UNIT(DEH-P4300RB/X1N/EW)

SOR

CL170UBX

151

C

KEYBOARD UNIT

B

CN1951

PANEL UNIT

AUDIOSFEQ

DISPFUNC

EQ

SOURCE

PTY

CH3

CH2 CH1

CH4

CH5

CH6

ND

UP

RIGHT

LEFT

R1927

472

19

DEH-P4300R,P4300RB

5

6

78

5

6

78

D

C

B

A

C

BA05SFP

(SERVICE)(P8)

PICKUP UNIT

PHOTO UNIT(S8)

CL203IRXTU CL203IRXTU

CONTROL UNIT

SPINDLE MOTOR

Q2 CPT230SX-TUQ1 CPT230SX-TU

M3 CXB2562

CARRIAGE MOTOR

M1 CXB2190

M2 CXB2195

LOADING MOTOR

RF-AMP, SE

5V REGULATOR

CD DRIVER

CN101

CN802

CN801

20

DEH-P4300R,P4300RB

1

23

4

1234

D

C

B

A

3.5 CD MECHANISM MODULE

E

D

E