PIONEER KEH-P5900, KEH-P5950 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 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 CORPORATION 1999

K-ZZS. NOV. 1999 Printed in Japan

ORDER NO.

CRT2431

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

KEH-P5900 X1N/UC

CONTENTS

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

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

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...11

4. PCB CONNECTION DIAGRAM ................................24

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

6. ADJUSTMENT..........................................................41

7. GENERAL INFORMATION .......................................42

7.1 DIAGNOSIS ........................................................42

7.1.1 TEST MODE ..............................................42

7.1.2 DISASSEMBLY .........................................42

7.2 PARTS .................................................................46

7.2.1 IC................................................................46

7.2.2 DISPLAY....................................................50

8. OPERATIONS AND SPECIFICATIONS.....................51

KEH-P5900/X1N/UC

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

Model No. Order No. Mech. Module Remarks

CX-1011 CRT2406 3L Cassette Mech. Module:Mech.Description, Disassembly, Adjustment

KEH-P5950 X1N/ES

NOTE:

- Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.

"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.

2

KEH-P5900,P5950

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

4

7

11

3

10

9

8

6

5

1

19

12

15

18

2

16

17

14

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

3

KEH-P5900,P5950

1 Cord Assy CDE6120
2 Accessory Assy CEA2002
3 Spring CBH1650
4 Screw Assy CEA2003
5 Screw CBA1304

* 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 CHP2251
17 Protector CHP2252

18-1 Owner’s Manual

See Contrast table(2)

18-2 Owner’s Manual See Contrast table(2)
18-3 Installation Manual See Contrast table(2)

* 18-4 Card

See Contrast table(2)

18-5 Polyethylene Bag CEG1116

19 Case Assy CXB3520

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

(1) 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.

Part No.

Mark No. Symbol and Description KEH-P5900/X1N/UC KEH-P5950/X1N/ES

12 Polyethylene Bag CEG1173 CEG-162
14 Carton CHG3945 CHG3944

15 Contain Box CHL3945 CHL3944
18-1 Owner’s Manual CRD3113 CRD3110
18-2 Owner’s Manual Not used CRD3111

18-3 Installation Manual CRD3114 CRD3112

* 18-4 Card ARY1048 Not used

(2) CONTRAST TABLE

KEH-P5900/X1N/UC and KEH-P5950/X1N/ES are constructed the same except for the following:

- Owner's Manual, Installation Manual

Model Part No. Language

KEH-P5950/X1N/ES CRD3110 English, Spanish, Portuguese(B)

CRD3111 Chinese, Arabic
CRD3112 English, Spanish, Portuguese(B),

Chinese, Arabic

KEH-P5900/X1N/UC CRD3113 English, French

CRD3114 English, French

4

KEH-P5900,P5950

2.2 EXTERIOR

5

KEH-P5900,P5950

1 Screw BMZ30P040FZK
2 Screw BSZ26P050FMC
3 Screw BSZ30P050FMC
4 Screw BSZ30P200FMC
5 Cord Assy CDE6120

6 Fuse(10A) CEK1136
7 •••••
8 Screw ISS26P055FUC
9 Case CNB2350

10 Holder CNC6798

11 Holder CNC8357
12 Spacer CNM4913
13 Insulator CNM6530
14 Panel CNS5992
15 •••••

16 Tuner Amp Unit

See Contrast table(2)

17 Screw BPZ26P060FMC
18 Screw BSZ26P060FMC
19 Screw BSZ26P160FMC
20 Pin Jack(CN301) CKB1028

21 Terminal(CN403) CKF1059
22 Plug(CN951) CKM1231
23 Connector(CN751) CKS3408
24 Plug(CN601) CKS3537
25 Connector(CN602) CKS3568

26 •••••
27 Antenna Jack(CN401) CKX1056
28 Panel CNB2360
29 Holder CNC6845
30 Holder CNC7533

31 Holder CNC7996
32 Insulator CNM5967
33 Heat Sink CNR1505
34 FM/AM Tuner Unit CWE1501
35 Holder CNC7532

36 •••••
37 •••••
38 Chassis Unit CXB4693
39 Button(EJECT) CAC6327
40 Door CAT2109

41 Screw(M2x2) CBA1176
42 Washer CBF1038
43 Spring CBH1838
44 Spring CBH2310
45 Spring CBH2311

46 Spring CBH2312
47 Spring CBH2313
48 Spring CBL1492
49 Holder CNC8560
50 Cushion CNM5486

51 Panel CNS5728
52 Arm CNV5991
53 Arm CNV5992
54 Arm CNV5993
55 Lever CNV5994

56 Gear CNV5995
57 Gear CNV5996
58 Gear CNV5997
59 Pin CNV6027
60 Panel PCB Unit CWM6720

61 Socket(CN605) CKS3550
62 Connector(CN604) CKS4206
63 Damper Unit CXB5070
64 Holder Unit CXB5736
65 Holder Unit CXB5737

66 Screw IMS20P045FZK
67 Detach Grille Assy

See Contrast table(2)

68 Screw BPZ20P100FZK
69 Knob(EQ) CAA1525
70 Button(SOURCE) CAC6331

71 Button(OPEN) CAC6333
72 Button(FUNC,AUDIO) CAC6337
73 Button(DISP,LOUD) CAC6340
74 Button(BAND) CAC6343
75 Spring CBH2316

76 Spring CBH2320
77 Cushion CNM6542
78 Cover CNS5737
79 Holder CNV6177
80 Keyboard Unit CWM6711

81 LCD(LCD901) CAW1565
82 Connector(CN901) CKS4205
83 Holder CNC8562
84 Spacer CNM6710
85 Spacer CNM6711

86 Spacer CNM6733
87 Spacer CNM6734
88 •••••
89 Connector CNV5990
90 Lighting Conductor CNV6001

91 Grille Unit

See Contrast table(2)

92 Knob Unit(VOL) CXB5350
93 IC(IC301) PAL005A
94 Transistor(Q951) 2SD2396
95

Cassette Mechanism Module See Contrast table(2)

(1) EXTERIOR SECTION PARTS LIST

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

6

KEH-P5900,P5950

Part No.

Mark No. Symbol and Description KEH-P5900/X1N/UC KEH-P5950/X1N/ES

16 Tuner Amp Unit CWM6707 CWM6708
67 Detach Grille Assy CXB5356 CXB5354
80 Keyboard Unit CWM6711 CWM6718
91 Grille Unit CXB5346 CXB5344
95 Cassette Mechanism Module

EXK4015 EXK4005

(2) CONTRAST TABLE

KEH-P5900/X1N/UC and KEH-P5950/X1N/ES are constructed the same except for the following:

2.3 CASSETTE MECHANISM MODULE(KEH-P5900)

7

KEH-P5900,P5950

1 Screw BSZ20P040FMC
2 Washer CBF1037
3 Washer CBG1003
4 Screw EBA1028
5 Screw CBA1037

6 Spring EBH1531
7 Spring EBH1624
8 Spring EBH1625
9 Spring EBH1626

10 Spring EBH1627

11 Spring EBH1629
12 Cord EDD1024
13 Photo-reflector(EGN1) EGN1004
14 Arm ENC1526
15 Lever ENC1530

16 Lever ENC1531
17 Arm ENC1532
18 Frame ENC1533
19 Holder ENC1534
20 Gear ENC1535

21 Arm ENC1536
22 Roller ENR1040
23 Belt ENT1027
24 Collar ENV1508
25 Arm ENV1539

26 Arm ENV1540
27 Gear ENV1544
28 Gear ENV1547
29 Gear ENV1548
30 Worm Wheel ENV1550

31 Lever ENV1551
32 Flywheel ENV1554
33 Gathering PCB ENX1054
34 Switch(S1,S2,S3) ESG1007
35 Deck Unit EWM1024

36 Plug(CN251) CKS3540
37 Gathering PCB ENX1053
38 Motor Unit(M1) EXA1490
39 Motor EXM1027
40 Head Assy(HD1) EXA1589

41 Motor Unit(M2) EXA1580
42 Screw BMZ20P022FMC
43 Bracket ENC1528
44 Chassis Unit EXA1582
45 Pinch Holder Unit EXA1584

46 Pinch Roller ENV1518
47 Pinch Holder Unit EXA1583
48 Pinch Roller ENV1518
49 Reel Unit EXA1585
50 Head Base Unit EXA1586

51 Lever Unit EXA1587
52 Gear Unit EXA1588
53 Motor Unit(Service) EXX1055
54 Washer HBF-179
55 Screw CBA1250

56 Bracket ENC1542
57 Arm ENC1537

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

- CASSETTE MECHANISM MODULE SECTION PARTS LIST

8

KEH-P5900,P5950

2.4 CASSETTE MECHANISM MODULE(KEH-P5950)

9

KEH-P5900,P5950

1 Screw BSZ20P040FMC
2 Washer CBF1037
3 Washer CBG1003
4 Screw EBA1028
5 Screw CBA1037

6 Spring EBH1531
7 Spring EBH1624
8 Spring EBH1625
9 Spring EBH1626

10 Spring EBH1627

11 Spring EBH1628
12 Cord EDD1024
13 Photo-reflector(EGN1) EGN1004
14 Arm ENC1526
15 Lever ENC1530

16 Lever ENC1531
17 Arm ENC1532
18 Frame ENC1533
19 Holder ENC1534
20 Gear ENC1535

21 Arm ENC1536
22 Roller ENR1040
23 Belt ENT1027
24 Collar ENV1508
25 Arm ENV1539

26 Arm ENV1540
27 Gear ENV1544
28 Gear ENV1547
29 Gear ENV1548
30 Worm Wheel ENV1550

31 Lever ENV1551
32 Flywheel ENV1554
33 Gathering PCB ENX1054
34 Switch(S1,S2) ESG1007
35 Deck Unit EWM1023

36 Plug(CN251) CKS3540
37 Gathering PCB ENX1053
38 Motor Unit(M1) EXA1491
39 Motor EXM1028
40 Head Assy(HD1) EXA1592

41 Motor Unit(M2) EXA1580
42 Screw BMZ20P022FMC
43 Bracket ENC1528
44 Chassis Unit EXA1582
45 Pinch Holder Unit EXA1584

46 Pinch Roller ENV1518
47 Pinch Holder Unit EXA1583
48 Pinch Roller ENV1518
49 Reel Unit EXA1585
50 Head Base Unit EXA1586

51 Lever Unit EXA1587
52 Gear Unit EXA1588
53 Motor Unit(Service) EXX1055
54 Washer HBF-179
55 Screw CBA1250

56 Bracket ENC1542

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

- CASSETTE MECHANISM MODULE SECTION PARTS LIST

10

KEH-P5900,P5950

11

KEH-P5900,P5950

1

2

34

1

2

34

D

C

B

A

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

TUNER Lch

B.U

VDD

Q952

SYSPW

SYSPW

VDD

AVDD

51 82

19

SYSTEM

CONTROLLER

PE5084A

IC601(1/2)

TUN-L

TUN-L

ELECTRONIC VOLUME

PML003AM

IC201

11

10

2
5

6
4

BUS-L1
BUS-L2

TAPE-L

RL

FL

PEE

Q205

Q201

MUTE

MUTE

POWER AMP

PAL005A

IC301

11

15

MUTE

STBY

FL

RL

FL+

FL-

RL+

RL-

22 4

9

7

19
17

SYSPW

B.U

B.U

SYSPW

Q302

Q951

Q959

Q301

Q953

Q601

Q602

MUTE

8V

REGULATOR

RESET

IC604

S-80734AN

VCC

VDD

1

2

8

5

6

B.U

TX

TX

RX

RX

ASENBO

ASENBO

IP-BUS DRIVER

IC751

HA12187FP

BUSL+

BUSL­BUS-

BUS+

Q751

Q752

8

1

5

11

7

86
85
47

100

33

11

1

2

92 93

16

15

65

55

64

MUTE

PEE

RESET

BSENS

ASENS

SWVDD

DPDT

KYDT

ILMPW

DSENS

ASEMBO

RIMUTE

STBY

MTL
LOADSW

X1

X2

SYSTEM

CONTROLLER

IC601(2/2)

PE5084A

X601

Q954

BSENS

ASENS

ACC

FUSE

10A

B.U

STBY

B.U

MUTE

MTL

LOAD

69

44

25 95

96

46

VDD

Q957

Q958

ILMPW

DSENSE

Q609

SWVDD

VDD

SW5V

ILL1

KYDT

DPDT

SW5V

VDD SWITCH

5

1

4

2
1

3

4

11

9

20

19

8

3

4

11

9

20

19

8

11

9

5

8

10

14

A

TUNER AMP UNIT

E

DECK UNIT

212

11

10

10 5

6

8

LCD DRIVER

IC901

PD6279A

DPDT
KYDT

VDD

LCDB

XO

XI

REM

IN

REMOTE CONTROL

SENSOR

IC902

RS-140

X901

53

52

50

10

4

1

60

57

58

IC251
CXA2559Q(KEH-P5950)
CXA2560Q(KEH-P5900)

IC351

PA2020A

EQ

MOTOR

DRIVER

CN251

CN252

CN254

CN255

CN253

7

5

TAPE+B

Lch

17

18

FWD
L-ch

REV
L-ch

37

36

39

18

19

17

3

15 6

8

7

10

CN256

3

15 6

S1

LOAD

S2

MODE

EGN1

REEL

SENSE

M

M

M2

SUB

MOTOR

M1

MAIN

MOTOR

5
2

1

F

REEL SENSE PCB

CN602

CN751

IP-BUS

CN301

CN951

CN601

CN1901

VCK/VDT/VST

ACC

BACK UP

FL+
FL-

RL­RL+

B.REMOTE

3

VCC

LOUT

RIMUTE

LDSW

MTL

STBY

KEY MATRIX

LCD

ANT1 TV

ANT2 TV

RF TV

IC 3

BR9010FV

AM 2ND IF 450kHz

CN401

B

FM/AM TUNER UNIT

28

FM FRONT END

Q3

Q201 Q204

AM RF

FM/AM 1ST IF 10.7MHz

T51 Q51 CF51 CF52 CF53

MIXER.IF AMP DET

IC 1

PML002A

38 39 42 44 46 63

32 19

46

6

21

18

LDET

COMP

34 33 41 44 11 12 13

69

70

54

78

65

71

75746157554533

35

22

2225 10 14 12 15 16 8 13 2 3 4

CF202

VDD

LOCL

VCC

Q401

VCC

VDDT

DI/DO

CE2CKCE1

SDBLSLFMSD

TUNPCE2

TUNPCK

TUNPCE

SDBW

SL

SD

PDIO

NL1

NL2

EEPROM

5

6

4

3

IC 2 PM4008A

FM MPX

25 24

NL

Q202

32

78

NL

SD

SL

SDBW

TUNPCE

TUNPCK

TUNPCE2

LOCL

31

75

22

99

97

52

49

4

4

S3

70µS

S601

212

11

10

38

7

5

C

PANEL PCB UNIT

BZ601

ALARM

BUZZER

25

11

9

5

8

10

14

3

KEH-P5900/UC
only

TUNPDI,O

94,98

ANTENNA

D

KEYBOARD UNIT

27

Q952

VDD

B.U

S-81250PGPD

VDDT

1

3

IC951

28

12

KEH-P5900,P5950

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-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

KEYBOARD UNIT

AM:-30dBs
FM:-30dBs

TAPE:-9dBs

D

E F

B

D

13

KEH-P5900,P5950

5

6

78

5

6

78

D

C

B

A

A-b

C

Not used

PANEL

PCB UNIT

TAPE:22.1dBs
AM:21.1dBs
FM:21.1dBs
CD:36.3dBs

TAPE:-8.9dBs
AM:-9.9dBs
FM:-9.9dBs
CD:5.3dBs

ELECTRONIC VOLUME

POWER AMP

ACC SENSE

ILM SENSE

BACKUP SENSE

RESET

8V REGULATOR

5V REGULATOR

A

C

A

14

KEH-P5900,P5950

1

23

4

1234

D

C

B

A

ANTENNA

AM:-30dBs

FM:-30dBs

TAPE:-9dBs

B

A-a

A-a

A-b

1

2

3

4

5

6

8

7

15

KEH-P5900,P5950

5

6

78

5

6

78

D

C

B

A

PAN

KEYBOARD UNIT

PCB

C

D

E F

A-a

A-a

A-b

9

10

D

C

16

1

23

4

1234

D

C

B

A

TAPE:22.1dBs

AM:21.1dBs

FM:21.1dBs

CD:36.3dBs

TAPE:-8.9dBs

AM:-9.9dBs

FM:-9.9dBs

CD:5.3dBs

ELECTRONIC VOLUME

POWER AMP

RESET

8V REGULATOR

5V REGULATOR

A

A-a

A-b

A-b

1

2

3

4

5

6

8

7

KEH-P5900,P5950

17

5

6

78

5

6

78

D

C

B

A

Not used

PANEL

PCB UNIT

ACC SENSE

ILM SENSE

BACKUP SENSE

A-b

A-a

A-b

9

10

KEH-P5900,P5950

C