Pioneer DEHP-20, DEHP-2050, DEHP-2000 Service manual

PIONEER ELECTRONIC 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 ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER ELECTRONIC CORPORATION 1998

K-ZZD. DEC. 1998 Printed in Japan

ORDER NO.

CRT2311

MULTI-CD CONTROL HIGH POWER CD PLAYER WITH FM/AM TUNER

DEH-P2000 X1N/UC

CONTENTS

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

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

3. SCHEMATIC DIAGRAM ...........................................12

4. PCB CONNECTION DIAGRAM ................................28

5. ELECTRICAL PARTS LIST ........................................38

6. ADJUSTMENT..........................................................45

7. GENERAL INFORMATION .......................................49

7.1 PARTS .................................................................49

7.1.1 IC................................................................49

7.1.2 DISPLAY....................................................56

7.2 DIAGNOSIS ........................................................57

7.2.1 DISASSEMBLY .........................................57

7.2.2 TEST MODE..............................................58

7.3 BLOCK DIAGRAM ..............................................62

8. OPERATIONS AND SPECIFICATIONS.....................63

- See the separate manual CX-916(CRT2300) for the CD mechanism description, disassembly and circuit
description.

- The CD mechanism employed in this model is one of S8 series.

DEH-P20 X1N/UC
DEH-P2050 X1N/ES,ES

DEH-P2000/X1N/UC

2

DEH-P2000,P20,P2050

- CD Player Service Precautions

1. For pickup unit(CXX1285) handling, please refer
to"Disassembly"(CX-916 Service Manual CRT2300).
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 47).

CAUTION

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.

W

ARNING

This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of
California to cause cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 - Proposition 65

1. SAFETY INFORMATION

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

20

19

15

12

16

17

4

7

11

3

10

9

8

6

5

2

14

1

3

DEH-P2000,P20,P2050

- Owner’s Manual

Model Part No. Language
DEH-P2000/X1N/UC, DEH-P20/X1N/UC CRD2851 English, French, Spanish
DEH-P2050/X1N/ES, DEH-P2050/ES CRD2855 English, Spanish, Portuguese

CRD2856 Arabic, Chinese

- Installation Manual

Model Part No. Language
DEH-P2000/X1N/UC, DEH-P20/X1N/UC CRD2852 English, French, Spanish
DEH-P2050/X1N/ES, DEH-P2050/ES CRD2857 English, Spanish, Portuguese, Arabic, Chinese

1 Cord Assy CDE5874

* 2 Accessory Assy CEA2395

3 Spring CBH1650
4 Screw Assy CEA2396
5 Screw CBA1002

* 6 Polyethylene Bag CEG-127

7 Screw CRZ50P090FMC
8 Screw TRZ50P080FMC

* 9 Polyethylene Bag CEG-158

10 Handle CNC5395

11 Bush CNV3930
12 Polyethylene Bag

See Contrast table(2)

13 •••••
14 Carton

See Contrast table(2)

15 Contain Box See Contrast table(2)

16 Protector CHP2101
17 Protector CHP2102
18 •••••
19 Case Assy CXB3520

20-1 Owner’s Manual

See Contrast table(2)

20-2 Owner’s Manual See Contrast table(2)
20-3 Installation Manual See Contrast table(2)
20-4 Polyethylene Bag CEG1116

* 20-5 Card

See Contrast table(2)

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

(1) PACKING SECTION PARTS LIST

NOTE:

- Parts marked by “*” and | can not be supplied.

- Screws adjacent to ∇ mark on the product are used for disassembly.

Part No.

Mark No. Symbol and Description DEH-P2000/X1N/UC DEH-P20/X1N/UC DEH-P2050/X1N/ES DEH-P2050/ES

12 Polyethylene Bag CEG1173 CEG1173 CEG-162 CEG-162
14 Carton CHG3657 CHG3656 CHG3659 CHG3762

15 Contain Box CHL3657 CHL3656 CHL3659 CHL3762
20-1 Owner’s Manual CRD2851 CRD2851 CRD2855 CRD2855
20-2 Owner’s Manual Not used Not used CRD2856 CRD2856

20-3 Installation Manual CRD2852 CRD2852 CRD2857 CRD2857

* 20-5 Card ARY1048 ARY1048 Not used Not used

(2) CONTRAST TABLE
DEH-P2000/X1N/UC, DEH-P20/X1N/UC, DEH-P2050/X1N/ES and DEH-P2050/ES are constructed the same
except for the following:

4

DEH-P2000,P20,P2050

2.2 EXTERIOR

- DEH-P2000/X1N/UC

5

DEH-P2000,P20,P2050

1 Screw BMZ26P120FMC
2 Screw BSZ26P060FMC
3 Screw BSZ30P060FMC
4 Screw BSZ30P120FMC
5 Cable CDE6018

6 Cord Assy CDE5874
7 Resistor RS1/2PMF102J
8 •••••
9 Cap CNS1472

10 •••••

11 Fuse(10A) CEK1136
12 Holder CNC6798
13 Cover CNC8367
14 Earth Plate CNC8368
15 Transistor(Q981,991) 2SD2396

16 Spacer CNM4913
17 Insulator CNM6006
18 Insulator CNM6224
19 Panel CNS5132

| 20 Tuner Amp Unit CWM6085

21 Screw ASZ26P080FMC
22 Screw BPZ26P080FMC
23 Screw BSZ26P160FMC
24 IC(IC551) PAL005A
25 Connector(CN551) CDE5996

26 Antenna Cable(CN502) CDH1254
27 Clamper CEF1006
28 Pin Jack(CN431) CKB1028
29 Terminal(CN501) CKF1059
30 Connector(CN951) CKM1299

* 31 Connector(CN681) CKS2227

32 Connector(CN411) CKS3408
33 Connector(CN651) CKS3581
34 •••••
35 Holder CNC7533

36 Holder CNC8039
37 Holder CNC8041
38 Holder CNC8043
39 Insulator CNM5967
40 Heat Sink CNR1506

41 FM/AM Tuner Unit CWE1501
42 Holder CNC7532
43 Chassis Unit CXB3167
44 •••••
45 •••••

46 Case Assy CXB3520
47 Button CAC4836
48 Spring CBH1835
49 Spring CBH1996
50 Spring CBH2208

51 Bracket CNC6791
52 Holder CNC8042
53 Cover CNM6276
54 Panel CNS5355
55 Arm CNV4692

56 Arm CNV4728
57 Arm CNV5576
58 Screw IMS20P030FZK
59 Detach Grille Assy CXB3607
60 Screw BPZ20P060FMC

61 Screw BPZ20P100FZK
62 Button(DETACH) CAC5789
63 Button(+) CAC5834
64 Button(-) CAC5837
65 Button(SOURCE) CAC5983

66 Button(BAND) CAC5984
67 Button(1-6) CAC5840
68 Button(PGM,CL) CAC5841
69 Button(UP,DOWN) CAC5846
70 Button(<,>) CAC5849

71 Button(F,A) CAC5852
72 Button(EJECT) CAC5853
73 Button(EQ) CAC6132
74 Spring CBH2210
75 Cover CNM6290

76 Cover CNS5187
77 •••••
78 •••••
79 •••••
80 •••••

81 Housing CNV5575
82 Keyboard Unit CWM6098
83 LCD(LCD1801) CAW1500
84 Connector(CN1801) CKS3580
85 Holder CNC8036

86 Sheet CNM6026
87 •••••
88 CD Mechanism Module CXK5200
89 Lighting Conductor CNV5570
90 Connector CNV5571

91 Grille Unit CXB3496
92 Case Unit CXB4033
93 Screw ISS26P055FUC
94 •••••
95 Cushion CNM6373

- EXTERIOR SECTION PARTS LIST

Mark No. Description Part No.

Mark No. Description Part No.

6

DEH-P2000,P20,P2050

- DEH-P20/X1N/UC

7

DEH-P2000,P20,P2050

1 Screw BMZ26P120FMC
2 Screw BSZ26P060FMC
3 Screw BSZ30P060FMC
4 Screw BSZ30P120FMC
5 Cable CDE6018

6 Cord Assy CDE5874
7 Resistor RS1/2PMF102J
8 •••••
9 Cap CNS1472

10 •••••

11 Fuse(10A) CEK1136
12 Holder CNC6798
13 Cover CNC8367
14 Earth Plate CNC8368
15 Transistor(Q981,991) 2SD2396

16 Spacer CNM4913
17 Insulator CNM6006
18 Insulator CNM6224
19 Panel CNS5132

| 20 Tuner Amp Unit CWM6085

21 Screw ASZ26P080FMC
22 Screw BPZ26P080FMC
23 Screw BSZ26P160FMC
24 IC(IC551) PAL005A
25 Connector(CN551) CDE5996

26 Antenna Cable(CN502) CDH1254
27 Clamper CEF1006
28 Pin Jack(CN431) CKB1028
29 Terminal(CN501) CKF1059
30 Connector(CN951) CKM1299

* 31 Connector(CN681) CKS2227

32 Connector(CN411) CKS3408
33 Connector(CN651) CKS3581
34 •••••
35 Holder CNC7533

36 Holder CNC8039
37 Holder CNC8041
38 Holder CNC8043
39 Insulator CNM5967
40 Heat Sink CNR1506

41 FM/AM Tuner Unit CWE1501
42 Holder CNC7532
43 Chassis Unit CXB3167
44 •••••
45 •••••

46 Case Assy CXB3520
47 Button CAC4836
48 Spring CBH1835
49 Spring CBH1996
50 Spring CBH2208

51 Bracket CNC6791
52 Holder CNC8042
53 Cover CNM6276
54 Panel CNS5355
55 Arm CNV4692

56 Arm CNV4728
57 Arm CNV5576
58 Screw IMS20P030FZK
59 Detach Grille Assy CXB3606
60 Screw BPZ20P060FMC

61 Screw BPZ20P100FZK
62 Button(DETACH) CAC5789
63 Button(+) CAC5834
64 Button(-) CAC5837
65 Button(SOURCE) CAC5983

66 Button(BAND) CAC5984
67 Button(1-6) CAC5840
68 Button(PGM,CL) CAC5841
69 Button(UP,DOWN) CAC5846
70 Button(<,>) CAC5849

71 Button(F,A) CAC5852
72 Button(EJECT) CAC5853
73 Button(EQ) CAC6132
74 Spring CBH2210
75 Cover CNM6290

76 Cover CNS5187
77 •••••
78 •••••
79 •••••
80 •••••

81 Housing CNV5575
82 Keyboard Unit CWM6095
83 LCD(LCD1801) CAW1500
84 Connector(CN1801) CKS3580
85 Holder CNC8036

86 Sheet CNM6026
87 •••••
88 CD Mechanism Module CXK5200
89 Lighting Conductor CNV5570
90 Connector CNV5571

91 Grille Unit CXB3495
92 Case Unit CXB4033
93 Screw ISS26P055FUC
94 •••••
95 Cushion CNM6373

- EXTERIOR SECTION PARTS LIST

Mark No. Description Part No.

Mark No. Description Part No.

8

DEH-P2000,P20,P2050

- DEH-P2050/X1N/ES, DEH-P2050/ES

9

DEH-P2000,P20,P2050

1 Screw BMZ26P120FMC
2 Screw BSZ26P060FMC
3 Screw BSZ30P060FMC
4 Screw BSZ30P120FMC
5 Cable CDE6018

6 Cord Assy CDE5874
7 Resistor RS1/2PMF102J
8 •••••
9 Cap CNS1472

10 •••••

11 Fuse(10A) CEK1136
12 Holder CNC6798
13 Cover CNC8367
14 Earth Plate CNC8368
15 Transistor(Q981,991) 2SD2396

16 Spacer CNM4913
17 Insulator

(DEH-P2050/X1N/ES) CNM6006

Insulator

(DEH-P2050/ES) CNM6386

18 Insulator CNM6224
19 Panel CNS5132

| 20 Tuner Amp Unit CWM6090

21 Screw ASZ26P080FMC
22 Screw BPZ26P080FMC
23 Screw BSZ26P160FMC
24 IC(IC551) PAL005A

25 Connector(CN551) CDE5996
26 Antenna Cable(CN502) CDH1254
27 Clamper CEF1006
28 Pin Jack(CN431) CKB1028
29 Terminal(CN501) CKF1059

30 Connector(CN951) CKM1299

* 31 Connector(CN681) CKS2227

32 Connector(CN411) CKS3408
33 Connector(CN651) CKS3581
34 •••••

35 Holder CNC7533
36 Holder CNC8039
37 Holder CNC8041
38 Holder CNC8043
39 Insulator CNM5967

40 Heat Sink CNR1506
41 FM/AM Tuner Unit CWE1501
42 Holder CNC7532
43 Chassis Unit CXB3167
44 •••••

45 •••••
46 Case Assy CXB3520
47 Button

(DEH-P2050/X1N/ES) CAC4836

Button

(DEH-P2050/ES) CAC5180

48 Spring CBH1835

49 Spring CBH1996
50 Spring CBH2208
51 Bracket CNC6791
52 Holder CNC8042
53 Cover CNM5355

54 Panel CNS5355
55 Arm CNV4692
56 Arm CNV4728
57 Arm CNV5576
58 Screw IMS20P030FZK

59 Detach Grille Assy CXB3613
60 Screw BPZ20P060FMC
61 Screw BPZ20P100FZK
62 Button(DETACH) CAC5789
63 Button(+) CAC5834

64 Button(-) CAC5837
65 Button(SOURCE) CAC5983
66 Button(BAND) CAC5984
67 Button(1-6) CAC5840
68 Button(PGM,CL) CAC5841

69 Button(UP,DOWN) CAC5846
70 Button(<,>) CAC5849
71 Button(F,A) CAC5852
72 Button(EJECT) CAC5853
73 Button(EQ) CAC6132

74 Spring CBH2210
75 Cover CNM6290
76 Cover CNS5187
77 •••••
78 •••••

79 •••••
80 •••••
81 Housing CNV5575
82 Keyboard Unit CWM6098
83 LCD(LCD1801) CAW1500

84 Connector(CN1801) CKS3580
85 Holder CNC8036
86 Sheet CNM6026
87 •••••
88 CD Mechanism Module CXK5200

89 Lighting Conductor CNV5570
90 Connector CNV5571
91 Grille Unit CXB3502
92 Case Unit CXB4033
93 Screw ISS26P055FUC

94 •••••
95 Cushion CNM6373

- EXTERIOR SECTION PARTS LIST

Mark No. Description Part No.

Mark No. Description Part No.

10

DEH-P2000,P20,P2050

2.3 CD MECHANISM MODULE

11

DEH-P2000,P20,P2050

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

1 Control Unit CWX2344
2 Connector(CN802) CKS2192
3 Connector(CN801) CKS2193
4 Connector(CN701) CKS2773
5 Connector(CN101) CKS3486

6 Screw BMZ20P030FZK
7 Screw BSZ20P040FZK
8 Screw(M2×3) CBA1077
9 Screw(M2×6) CBA1230

10 Screw CBA1243
11 Screw(M2×4) CBA1362

12 Washer CBF1037
13 Washer CBF1038
14 Washer CBF1060

* 15 Washer CBF1075

16 Spring CBH2079
17 Spring CBH2117
18 Spring CBH2082
19 Spring CBH2110
20 Spring CBH2111

21 Spring CBH2114
22 Spring CBH2115
23 Spring CBH2080
24 Spring CBH2118
25 Spring CBH2161

26 Spring CBH2163
27 Spring CBH2189
28 Spring CBH2249
29 Spring CBH2260
30 Spring CBH2262

31 Spring CBL1367
32 Spring CBL1369
33 Connector CDE5531
34 Connector CDE5532
35 Shaft CLA3304

36 Screw(M2.6×6) CBA1458
37 Frame CNC7544
38 Frame CNC7545
39 Lever CNC7546
40 Arm CNC7739

41 Bracket CNC7798
42 Plate CNC8090
43 Spacer CNM3315
44 Sheet CNM6170
45 Cushion CNM6204

46 Sheet CNM6215
47 Ball CNR1189
48 Belt CNT1086
49 Roller CNV4509
50 Arm CNV5246

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

56 Gear CNV5257
57 Gear CNV5256
58 Guide CNV5259
59 Damper CNV5266
60 Arm CNV5359

61 Arm CNV5360
62 Arm CNV5361
63 Guide CNV5509
64 Guide CNV5510
65 Holder CNV5578

66 Guide CNV5751
67 Clamper CNV5758
68 Gear CNV5813
69 Motor Unit(M1) CXB2190
70 Screw Unit CXB2191

71 Chassis Unit CXB2192
72 Gear Unit CXB2193
73 Arm Unit CXB2194
74 Motor Unit(M2) CXB2195
75 Lever Unit CXB2553

76 Arm Unit CXB2554
77 Motor Unit(M3) CXB2562
78 Arm Unit CXB2795
79 Bracket Unit CXB4071
80 Screw JFZ20P025FMC

81 Screw JGZ17P025FZK
82 Washer YE15FUC
83 Pickup Unit(Service)(P8) CXX1285
84 Screw IMS26P030FMC

* 85 PCB CNX2982

86 Photo-transistor(Q1, 2) CPT230SX-TU

- CD MECHANISM MODULE SECTION PARTS LIST

12

DEH-P2000,P20,P2050

1

23

4

1234

D

C

B

A

3. SCHEMATIC DIAGRAM

3.1 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-aA-a

A-b A-b

A-b A-b

A-a A-a

Large size

SCH diagram

Guide page

Detailed page

A

A-a

ANTENNA
CABLE

A

IP BUS IN

SO
ELE

VD REGULATOR

IP BUS
DRIVER

4.3V

4.3V

4.3V

4.3V

4.3V

4.3V

4.3V

4.3V

A

B

E

D

13

DEH-P2000,P20,P2050

5

6

78

5

6

78

D

C

B

A

A-b

A

RESET

CEK1136

DEH-P2000/X1N/UC
DEH-P20/X1N/UC
DEH-P2050/X1N/ES
DEH-P2050/ES

R612
DELETED

100K

R613
0R0

33K

4.3V

4.3V

4.3V

4.3V

C

14

DEH-P2000,P20,P2050

1

23

4

1234

D

C

B

A

A

IP BUS IN

SOURCE SELECTOR,

ELECTRONIC VOLUME

IP BUS

DRIVER

4.3V

4.3V

4.3V

4.3V

4.3V

4.3V

4.3V

4.3V

4.3V

4.3V

4.3V

4.3V

A-a

A-a

A-b

A

B

15

DEH-P2000,P20,P2050

5

6

78

5

6

78

D

C

B

A

ANTENNA

CABLE

VD REGULATOR

DDD

D

A-a

A-a

A-b

E

D

C

16

DEH-P2000,P20,P2050

1

23

4

1234

D

C

B

A

RESET

4.3V

4.3V

A-a

A-b

A-b

17

DEH-P2000,P20,P2050

5

6

78

5

6

78

D

C

B

A

CEK1136

DEH-P2000/X1N/UC

DEH-P20/X1N/UC

DEH-P2050/X1N/ES

DEH-P2050/ES

R612

DELETED

100K

R613

0R0

33K

A-b

A-a

A-b

18

DEH-P2000,P20,P2050

1

23

4

1234

D

C

B

A

B

KV1410(23)

Voltage of IC Terminals

Mark
None
F0
F65
F125
A0
A74
A125

Band
–
FM
FM
FM
AM
AM
AM

Input Level
–
0dBf
65dBf
125dBf
0dBµ
74dBµ
125dBµ

3.2 FM/AM TUNER UNIT

B

A

19

DEH-P2000,P20,P2050

5

6

78

5

6

78

D

C

B

A

KV1410(23)

B

20

DEH-P2000,P20,P2050

1

23

4

1234

D

C

B

A

CLOCK

PGM

DEH-P2000/X1N/UC
DEH-P2050/X1N/ES
DEH-P20/X1N/UC

IL1801-1805
CEL1549

CEL1508

C

C

3.3 KEYBOARD UNIT

C

A

CN651

KEYBOARD UNIT

21

DEH-P2000,P20,P2050

5

6

78

5

6

78

D

C

B

A

PD6294A

CAW1500

C

DEH-P2000,P20,P2050

1

23

4

1234

D

C

B

A

PICKUP UNIT(SERVICE)

PHOTO UNIT

CONTROL UNIT

3.4 CD MECHANISM MODULE

D

22

E

D

E

DEH-P2000,P20,P2050

5

6

78

5

6

78

D

C

B

A

SWITCHES:
CONTROL UNIT

S801 : HOME SWITCH.....ON-OFF

S802 : CLAMP SWITCH....ON-OFF

The underlined indicates the switch position.

23

D

A

CN681