PIONEER MEH-P5350 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 N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER CORPORATION 2001

K-ZZU. MAR. 2001 Printed in Japan

ORDER NO.

CRT2654

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

MEH-P5350 ES

CONTENTS

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

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

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

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

5. ELECTRICAL PARTS LIST ........................................37

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

7. GENERAL INFORMATION .......................................44

7.1 DIAGNOSIS ........................................................44

7.1.1 TEST MODE ................................................44

7.1.2 DISASSEMBLY............................................48

7.1.3 CONNECTOR FUNCTION DESCRIPTION..50

7.2 PARTS .................................................................51

7.2.1 IC..................................................................51

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

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

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

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

Model No. Order No. Mech. Module Remarks
CX-1020 CRT2653 MD-4LP MD Mech. Module:Circuit Description, Mech.Description, Disassembly

- US and foreign patents licensed from Dolby Laboratories Licensing Corporation.

- The screw is not stopped in this product though there is a stamp of the screw stop in two places of a

full part in the figure below.

2

MEH-P5350

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.

3

MEH-P5350

- Owner's Manual, Installation Manual

Model Part No. Language
MEH-P5350/ES CRD3422 English, Spanish

CRD3423 Portuguese(B), Arabic
CRD3424 English, Spanish, Portuguese(B), Arabic

1 Cord Assy CDE6438
2 Accessory Assy CEA2822
3 Screw CBA1002
4 Handle CNC5395
5 Bush CNV1009

* 6 Polyethylene Bag CEG-158

7 Polyethylene Bag CEG-162
8-1 Owner’s Manual CRD3422
8-2 Owner’s Manual CRD3423
8-3 Installation Manual CRD3424

8-4 Polyethylene Bag CEG1116

9 Spring CBH-865
10 Carton CHG4353
11 Contain Box CHL4353
12 Protector CHP2422

13 Protector CHP2421
14 Screw Assy CEA2396

* 15 Polyethylene Bag CEG-127

16 Screw CRZ50P090FMC
17 Screw TRZ50P080FMC

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

- PACKING SECTION PARTS LIST

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

11

8

5

4

6

3

2

7

12

13

10

1

15

9

16

17

14

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.

4

MEH-P5350

2.2 EXTERIOR

A

B

5

MEH-P5350

1 Screw BMZ30P100FMC
2 Screw BSZ26P060FMC
3 Screw BSZ30P060FMC
4 Cord Assy CDE6438
5 Cable CDE6452

6 Fuse(10A) CEK1136

* 7 Case CNB2609

8 Holder CNC5704
9 Holder CNC8659

10 Cushion CNM4870

11 Insulator CNM6948
12 Panel CNS6581
13 Tuner Amp Unit CWM7778
14 Screw ASZ26P060FMC
15 Screw BPZ26P120FMC

16 Screw BSZ26P160FMC
17 Pin Jack(CN351) CKB1028
18 Plug(CN901) CKM1330
19 Connector(CN101) CKS3408
20 Connector(CN831) CKS3581

21 Connector(CN991) CKS4204
22 Antenna Jack(CN401) CKX1056
23 Holder CNC8615
24 Holder CNC9472
25 Heat Sink CNR1583

26 FM/AM Tuner Unit CWE1563
27 Holder CNC8815
28 Chassis Unit CXB7119
29 Screw BPZ20P100FMC
30 Button(BAND,ESC) CAC6824

31 Button CAC6825
32 Button(SRC) CAC6851
33 Button(1-6) CAC7114
34 Button(DISP,SCRL) CAC7012
35 Button(FUNC,AUDIO) CAC7119

36 Button(VOLUME) CAC7121
37 Keyboard Unit CWM7775
38 LCD(LCD701) CAW1686
39 Connector(CN701) CKS3580
40 Holder CNC9078

41 Sheet CNM7057
42 Cushion CNM7393
43 Lighting Conductor CNV6476
44 Lighting Conductor CNV6689
45 Rubber CNV6690

46 Connector CNV6691
47 Grille Unit CXB7804
48 Holder Unit CXB7439
49 Door CAT2125
50 Spring CBH2329

51

MD Mechanism Module(MD-4LP) CXK3310

52 •••••
53 Transistor(Q921,Q994) 2SD2396
54 IC(IC301) PAL006A
55 IC(IC703) TSOP1840SB1

- EXTERIOR SECTION PARTS LIST

Mark No. Description Part No.

Mark No. Description Part No.

C

D

E

6

MEH-P5350

2.3 MD MECHANISM MODULE

7

MEH-P5350

1 MD Unit(MD-4LP) CWX2505
2 Connector(CN401) CKS4055
3 Connector(CN101) CKS4056
4 •••••
5 Screw CBA1537

6 Screw CBA1538
7 Screw CBA1539
8 Screw CBA1540
9 Screw CBA1541

10 Screw CBA1542

11 Washer CBF1037
12 Washer CBF1038
13 Washer CBF1039
14 Spring CBH2213
15 Spring CBH2440

16 Spring CBH2243
17 Spring CBH2441
18 Spring CBH2217
19 Spring CBH2218
20 Spring CBH2437

21 Spring CBH2438
22 Spring CBH2214
23 Spring CBH2442
24 Spring CBH2289
25 Spring CBL1405

26 Spring CBL1406
27 Spring CBL1519
28 •••••
29 PU Unit CGY3000
30 Shaft CLA3489

31 Shaft CLA3490
32 Shaft CLA3491
33 Bracket CNC8082
34 Arm CNC8269
35 Arm CNC8270

36 Cushion CNM6301
37 Sheet CNM6323
38 Sheet CNM6324

* 39 Sheet CNM6653

40 Sheet CNM7172

41 Sheet CNM6727
42 Sheet CNM6728
43 PCB CNP5335
44 Gear CNV5616
45 Holder CNV5623

46 Rack CNV5624
47 Rack CNV5625
48 Roller CNV5626
49 Collar CNV5627
50 Damper CNV5629

51 Guide CNV5630
52 Gear CNV5631
53 Gear CNV5633
54 Gear CNV5634
55 Gear CNV5635

56 Gear CNV5636
57 Guide CNV5746
58 Lever CNV5747
59 Lever CNV5748
60 Gear CNV5834

61 Gear CNV5837
62 Gear CNV5838
63 Gear CNV5839
64 Gear CNV5913
65 Composite PCB CNX3127

66 Chassis Unit CXB4399
67 Spring Unit CXB4047
68 Holder Unit CXB6415
69 Bracket Unit CXB4049
70 Frame Unit CXB4401

71 Bracket Unit CXB4051
72 Bracket Unit CXB6407
73 Motor Unit(-C)(M1)(CRG) CXB4054
74 Screw IMS20P025FMC
75 Screw Unit(-C) CXB4055

76

Motor Unit(-A)(M2)(Loading) CXB7603

77 Motor(M3)(SPDL) CXM1181
78 Screw JGZ14P018FZK
79 Washer WB16FMC
80 Washer YE12FUC

81 Connector(CN301) CKS4060
82 Guide CNC9597
83 •••••
84 Lever CNV6670
85 Spring CBH2477

86 Arm CNV6541
87 Spring CBH2443

- MD MECHANISM SECTION PARTS LIST

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

8

MEH-P5350

1

23

4

1234

D

C

B

A

ANT1 TV

ANT2 TV

RF TV

IC 3

BR9010FV

AM 2ND IF 450kHz

ANTENNA

CN401

27

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

25 24

32DI/DO

19

46

6

21
18

LDET

COMP

34 33 41 44 11 12 13

69
70
54
78
65
71

75746157554533

35

22

222510 14 12 15 16 8 13 2 3 4

CF202

VCC

LOCL

VDD

Q401

VCC

VDD

DI/DO

CE2CKCE1

SDBWSLFMSD

TUNPCE2

TUNPCK

SL

SD

TUNPDIO

NL1

NL2

EEPROM

5
6

4
3

IC 2 PM4008A

FM MPX

IP-BUS

8

5
1
7

11

ASENBO

TX
RX

IPPW

1

8

2

5
6

IP-BUS DRIVER

IC 101

HA12187FP
B–
B+

BL+
BL–

SD
SL

TUNPCE
TUNPCK
TUNPCE2
TUNPDO
TUNPDI
LOCL
ASENBO
TX
RX
IPPW

IN2_L
IN4+_L
IN4–_L
IN3_L

38
74

99
97
52
98
94
31
25
86
85
24

40
42
44
41

BSCK

65

BSO

67

BRST

68

BRXEN

63

BSRQ

64

X1

16

X2

15

SYSTEM

CONTROLLER

IC 601(1/2)

PE5213A

DA

ELECT

SOUR

SYSTEM

CONTROLLER

IC 601(2/2)

PE5213A

SY

L

S

X601

B.U

Q993

RESET

BSI

66

VDSEL

7

TUNPCE

CN101

32

Q202

Q991

Q994

M

MM

LASER
DIODE

MONITOR

DIODE

FOCUS ACT.

LOADING

MOTOR

DISC SW
LOAD SW
HOME SW
CLMP SW

SPDL

MOTOR

EJCT

SW

CRG

MOTOR

TRACKING ACT.

LD+

MON

F+
T+

LO–
LO+
SO–

SO+

EJECT

DISC
LOAD
HOME
CLMP

14

19

1,2

3

10

12

11

9

10

14

13

15

17

32

34
33

XOUT

AUX2
AUX1

XIN

ESW
DISC
LSW
HOME
CSW

7

25

15

1

5
3

93

20

AOOTL

28

XRST

FEA
AUX

96

VREF

86

VDDSW

75

MUTE

95

VDSENSE

44

VDON

34

BSI

33

BSO

37

bsrq

17

brst

35

BSCK

38

BRXEN

10

reset

MDVD

VDCONT

MDVD

BDAT

BRQ

BRST

BCK
BRX

BDATA

BRXEN

MRST

21

84

10

11

9
7
6
5
4
3
1

13

10

9
7
6
5
4
3
1

13

14

19

1,2

3

D

SW1 PCB

C

MD UNIT

E

SW2 PCB

PU UNIT

CN101

IC 101

CXA2523AR

IC 401

BA5985FM

IC 201

CXD2667R

CN401

Q101

Q102

UMD2N

IC 102

NJM2115V

IC 304

TC7WH34FU

IC 301

PD5655A

IC 302, 303

TC7WT125FU

X201

11

81
82
79
83
80

13

LDCNT

43

X301

Q301

Q602

Q601

VDD

3VD

PVD

13

IC 701

BA033FP

5

11

4

3

7
9
6
8

10

5

11

4

3

PVD

PVD

212

1

MDL

16 16

7
9
6
8

10

CN301 CN991

HOLOGRAM

UNIT

RF AMP

DIGITAL
SERVO
RTRAC

5ch Pow-Driver

MD SYSTEM CONTROLLER

D RAM

3V Regulator

A

TUNER AMP UNIT

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

9

MEH-P5350

5

6

78

5

6

78

D

C

B

A

IC 703

TSOP1840SB1

REMOTE CONTROL

SENSOR

OPT IN

RESET

REM
S0
S1

KEY CONTROLLER,

LCD DRIVER

IC701

PD2068A

ILB

SW5V

5
3

8
4

4

6

1
5

KEY MATRIX

1

10

E
K
E2
O
I

O

SYSTEM

CONTROLLER

IC 601(1/2)

PE5213A

Q912

B.U

VDD1

DALMON

Q959

B.U

BUP1

GND1

RL–
RL+
FL–
FL+

B.REM

ILL

ACC

TEL
MUTE

TEL1

2
1

10
12

9

11

5

6

4

7

ELECTRICAL VOLUME/

SOURCE SELECTOR

IC 151

PML008A

SYSTEM

CONTROLLER

IC 601(2/2)

PE5213A

asens

92

bsens

93

isens

asens

bsens

isens

4

TELIN

27

SYSPWR

21

MUTE

28

KYDT

95

DPDT

96

RESET

11

LCDPW

23

SWVDD

1

ILMPW

20

FL

10

RL

11

POWER AMP

IC 301

PAL005A

11
15

22 4 25

21

23

5

3

FL

MUTE STBY B.REM

RL

B.U

TELIN

bsens

asens

ISENS

Q951

Q931

Q932

Q301 MUTE

Q351

CN351

REAR
L CH

4
3

CN701

CN831

ILB

LCD701

23

X701

8
9

Q352

Q924

Q923Q921

Q932

B.U

VCC

SYSPW

Q811

Q812

Q821

Q822

B.U

Q801

VDD

B.U

RESET

IC 961

S–80735ANDZI

VDD

1

2

RESET

SYSPW

TELIN

SYSPW

CN901

26

VCC

LCD
BACK
LIGHT

Q701

DIM

7

27

BACKUP
GND

RL–
RL+
FL–
FL+

B.REM

ILL

ACC

IC 702

S-80734ANDYI

RESET

B

KEYBOARD UNIT

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

10

MEH-P5350

1

23

4

1234

D

C

B

A

A-a

MD:+1dBs

IP-BUS:+2.2dBs

FM:-19.5dBs

AM:-30.0dBs

C

MD UNIT

CN301

FM/AM TUNER UNIT

IP-BUS

The >
the im
Theref
identic

S
N
d

NOTE :

S
N
d

A

11

MEH-P5350

5

6

78

5

6

78

D

C

B

A

A-b

L151

FM:+0.6dBs
AM: -9.9dBs
MD:+5.1dBs

IP-BUS:+5.3dBs

FM:+4.75dBs

AM: -5.75dBs

MD:+19.25dBs

IP-BUS:+9.45dBs

FM:+31.6dBs
AM: -21.1dBs
MD:+36.1dBs

IP-BUS:+36.3dBs

FM:+5.6dBs

AM: -4.9dBs

MD:+10.1dBs

IP-BUS:+10.3dBs

FM:+5.6dBs

AM: -4.9dBs

MD:+10.1dBs

IP-BUS:+10.3dBs

A

TUNER AMP UNIT

B

KEYBOARD UNIT

CN701

CEK1136
10A

FUSE

>

Decimal points for resistor
and capacitor fixed values
are expressed as :

2.2 2R2

0.022 R022

←

←

ical designation.

Symbol indicates a resistor.
No differentiation is made between chip resistors and
discrete resistors.

:

Symbol indicates a capacitor.
No differentiation is made between chip capacitors and
discrete capacitors.

600µH

A

12

MEH-P5350

1

23

4

1234

D

C

B

A

MD:+1dBs

IP-BUS:+2.2dBs

FM:-19.5dBs

AM:-30.0dBs

C

MD UNIT

CN301

FM/AM TUNER UNIT

IP-BUS

A-a

A-a

A-b

1

2

13

MEH-P5350

5

6

78

5

6

78

D

C

B

A

The > mark foun

the importance of

Therefore, when r

identical designat

Symbol indic

No differenti

discrete resis

NOTE :

Symbol indic

No differenti

discrete capa

A-a

A-b

A-a

3

4

14

MEH-P5350

1

23

4

1234

D

C

B

A

L151

FM:+0.6dBs

AM: -9.9dBs

MD:+5.1dBs

IP-BUS:+5.3dBs

FM:+4.75dBs

AM: -5.75dBs

MD:+19.25dBs

IP-BUS:+9.45dBs

FM:+5.6dBs

AM: -4.9dBs

MD:+10.1dBs

IP-BUS:+10.3dBs

FM:+5.6dBs

AM: -4.9dBs

MD:+10.1dBs

IP-BUS:+10.3dBs

A

TUNER AMP UNIT

CEK1136

10A

FUSE

A-a

A-b

A-b

1

2

15

MEH-P5350

5

6

78

5

6

78

D

C

B

A

FM:+31.6dBs

AM: -21.1dBs

MD:+36.1dBs

IP-BUS:+36.3dBs

B

KEYBOARD UNIT

CN701

CEK1136

10A

FUSE

>

Decimal points for resistor

and capacitor fixed values

are expressed as :

2.2 2R2

0.022 R022

←

←

600µH

A-b

A-a

A-b

3

4

KEY MICROCOMPUTER

RESET

560

R47

2R7K

16

MEH-P5350

1

23

4

1234

D

C

B

A

3.3 KEYBOARD UNIT

B

B

LCD BACK LIGTH

B

A

KEYBOARD UNIT

CN831

17

MEH-P5350

5

6

78

5

6

78

D

C

B

A

18

MEH-P5350

1

23

4

1234

D

C

B

A

3.4 MD MECHANISM MODULE(GUIDE PAGE)

C

M1

D

FOCUS SERVO LINE
TRACKING SERVO LINE
CARRIAGE SERVO LINE
SPINDLE SERVO LINE

F

T

C

S

S

S

C

T

T

F

F

C

C

S

S

T

T

F

F

S
S
C
C

C

C

S

S

F

T

T

F

1

(

0

4

6
5

#

@

)

fi

‹
fl

¤
›

⁄

·

*

RF AMP

&

5ch Pow-Driver

C-a

19

MEH-P5350

5

6

78

5

6

78

D

C

B

A

CK SELECT

A

CN991

MD UNIT

C

MD SYSTEM

CONTROLLER

3-5V
LEVEL SHIFT

S

S
C

C

F

F

T

T

2

37

$

8

9

°

%

^

‡

3V Reg

DIGITAL SERVO
ATRAC,ATRAC3 DECODER

!

C

C-b

20

MEH-P5350

1

23

4

1234

D

C

B

A

C-a

FOCUS SERVO LINE

TRACKING SERVO LINE

CARRIAGE SERVO LINE

SPINDLE SERVO LINE

F

T

C

S

S

SCC

F

TTF

1

·

*

RF AMP

&

C-a

C-b

1

2

3

4

5