Pioneer MEH-P5350 User 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
Service
Manual
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
1234
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
22
25 10 14 12 15 16 8 13 2 3 4
CF202
VCC
LOCL
VDD
Q401
VCC VDD
DI/DO CE2 CK CE1 SDBW SL FMSD
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
393
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
DSW1 PCB
CMD 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
2
12 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
ATUNER AMP UNIT
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM

9
MEH-P5350
5678
5678
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
12
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
BKEYBOARD 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-bA-b
A-bA-b
A-aA-a
Large size
SCH diagram
Guide page
Detailed page
10
MEH-P5350
1234
1234
D
C
B
A
A-a
MD:+1dBs
IP-BUS:+2.2dBs
FM:-19.5dBs AM:-30.0dBs
CMD UNIT
CN301
FM/AM TUNER UNIT
IP-BUS
The >
the im
Theref
identic
S
N
d
NOTE :
S
N
d
A

11
MEH-P5350
5678
5678
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
ATUNER AMP UNIT
BKEYBOARD UNIT
CN701
CEK1136
10A
FUSE
>
Decimal points for resistor
and capacitor fixed values
are expressed as :
2.2 2R2
0.022 R022
←
←
>mark found on some component parts indicates
mportance of the safety factor of the part.
efore, when replacing, be sure to use parts of
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
1234
1234
D
C
B
A
MD:+1dBs
IP-BUS:+2.2dBs
FM:-19.5dBs
AM:-30.0dBs
CMD UNIT
CN301
FM/AM TUNER UNIT
IP-BUS
A-a
A-a A-b
1 2

13
MEH-P5350
5678
5678
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
1234
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
ATUNER AMP UNIT
CEK1136 10A
FUSE
A-a A-b
A-b
1 2

15
MEH-P5350
5678
5678
D
C
B
A
FM:+31.6dBs
AM: -21.1dBs
MD:+36.1dBs
IP-BUS:+36.3dBs
BKEYBOARD UNIT
CN701
CEK1136 10A
FUSE
>
Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022
←
←
ark found on some component parts indicates
tance of the safety factor of the part.
, when replacing, be sure to use parts of
designation.
bol indicates a resistor.
ifferentiation is made between chip resistors and ete resistors.
bol indicates a capacitor.
ifferentiation is made between chip capacitors and ete capacitors.
600µH
A-b
A-a A-b
3 4

KEY MICROCOMPUTER
RESET
560
R47
2R7K
16
MEH-P5350
1234
1234
D
C
B
A
3.3 KEYBOARD UNIT
B

B
LCD BACK LIGTH
B
A
KEYBOARD UNIT
CN831
17
MEH-P5350
5678
5678
D
C
B
A

18
MEH-P5350
1234
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
5678
5678
D
C
B
A
CK SELECT
ACN991
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
1234
1234
D
C
B
A
C-a
FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE
F
T
C
S
S S
C
C
F
T
T
F
1
·
*
RF AMP
C-a C-b
1 2 3 4 5