PIONEER DEH-P750MP, DEH-P7500MP, DEH-P7550MP Service Manual
PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) 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 2003
K-ZZD. APR. 2003 Printed in Japan
ORDER NO.
CRT3050
MULTI-CD CONTROL HIGH POWER CD/MP3/WMA PLAYER WITH FM/AM TUNER
DEH-P750MPXN/UC
DEH-P750MP/XN/UC
For details, refer to "Important symbols for good services".
DEH-P7500MPXN/UC
DEH-P7550MPXN/ES
- This service manual should be used together with the following manual(s):
Model No. Order No. Mech. Module Remarks
CX-3057 CRT3026 S10MP3 CD Mech. Module:Circuit Description, Mech.Description, Disassembly
2
1
234
12
34
F
E
D
C
B
A
DEH-P750MP/XN/UC
[ Important symbols for good services ]
In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely.
When you find the procedures bearing any of the symbols, be sure to fulfill them:
2. Adjustments
To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable.
In accordance with the procedures or instructions described in this manual, adjustments should be performed.
3. Cleaning
For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning,
proper cleaning should be performed to restore their performances.
5. Lubricants, glues, and replacement parts
Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying
glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the
prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed
ones should be used.
4. Shipping mode and shipping screws
To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or
the shipping screws should be installed before shipping out in accordance with this manual, if necessary.
1. Product safety
You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and
should keep the safety during servicing by following the safety instructions described in this manual.
SAFETY INFORMATION
- CD Section Precaution
1. Before disassembling the unit, be sure to turn off
the power. Unplugging and plugging the connectors
during power-on mode may damage the ICs inside
the unit.
2. To protect the pickup unit from electrostatic discharge
during servicing, take an appropriate treatment
(shorting-solder) by referring to "the DISASSEMBLY"
on page 64.
3. After replacing the pickup unit, be sure to check the
grating. (See p.60.)
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
3
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P750MP/XN/UC
CONTENTS
SAFETY INFORMATION......................................................................................................................................................2
1. SPECIFICATIONS.................................................................................................................................................................4
2. EXPLODED VIEWS AND PARTS LIST ................................................................................................................................6
2.1 PACKING..........................................................................................................................................................................6
2.2 EXTERIOR(DEH-P750MP/XN/UC,DEH-P7500MP/XN/UC).............................................................................................8
2.3 EXTERIOR(DEH-P7550MP/XN/ES)...............................................................................................................................12
2.4 CD MECHANISM MODULE..........................................................................................................................................14
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM.............................................................................................................16
3.1 BLOCK DIAGRAM .........................................................................................................................................................16
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) ...................................................................................................18
3.3 KEYBOARD UNIT..........................................................................................................................................................24
3.4 CD MECHANISM MODULE(GUIDE PAGE)..................................................................................................................26
4. PCB CONNECTION DIAGRAM..........................................................................................................................................36
4.1 TUNER AMP UNIT ........................................................................................................................................................36
4.2 KEYBOARD UNIT..........................................................................................................................................................40
4.3 PANEL UNIT ..................................................................................................................................................................41
4.4 CD MECHANISM MODULE..........................................................................................................................................42
5. ELECTRICAL PARTS LIST..................................................................................................................................................44
6. ADJUSTMENT ...................................................................................................................................................................56
6.1 JIG CONNECTION DIAGRAM ......................................................................................................................................56
6.2 OEL UNIT ADJUSTMENT.............................................................................................................................................57
6.3 SYSTEM MICROCOMPUTER TEST PROGRAM..........................................................................................................58
6.4 CD ADJUSTMENT ........................................................................................................................................................58
6.5 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT...........................................................................60
6.6 ERROR MODE ...............................................................................................................................................................62
6.7 OEL SCREENSAVER STUDIO IKA TO LKD APPLICATION : GGV1131 ......................................................................63
7. GENERAL INFORMATION.................................................................................................................................................64
7.1 DIAGNOSIS ...................................................................................................................................................................64
7.1.1 DISASSEMBLY .......................................................................................................................................................64
7.1.2 CONNECTOR FUNCTION DESCRIPTION.............................................................................................................67
7.2 IC ....................................................................................................................................................................................68
7.3 OPERATIONAL FLOW CHART......................................................................................................................................81
7.4 CLEANING.....................................................................................................................................................................82
8. OPERATIONS.....................................................................................................................................................................83
4
1
234
12
34
F
E
D
C
B
A
DEH-P750MP/XN/UC
1. SPECIFICATIONS
- DEH-P750MP/XN/UC, DEH-P7500MP/XN/UC
5
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P750MP/XN/UC
- DEH-P7550MP/XN/ES
6
1
234
12
34
F
E
D
C
B
A
DEH-P750MP/XN/UC
1 Polyethylene Bag See Contrast table(2)
2 Cord Assy CDE7154
3 Accessory Assy
See Contrast table(2)
4 Spring CBH1650
5 Screw Assy
See Contrast table(2)
6 Fixing Screw See Contrast table(2)
7 Screw CBA1650
* 8 Polyethylene Bag CEG-127
9 Screw CRZ50P090FTC
10 Screw TRZ50P080FTC
* 11 Polyethylene Bag CEG-158
12 Handle CNC5395
13 Holder
See Contrast table(2)
14 Holder See Contrast table(2)
15 Bush CNV3930
16 Remote Control Unit
See Contrast table(2)
* 17 Battery See Contrast table(2)
18 Carton See Contrast table(2)
19 Contain Box See Contrast table(2)
20 Protector CHP2663
21 Protector CHP2664
22-1 Owner’s Manual
See Contrast table(2)
22-2 Owner’s Manual See Contrast table(2)
22-3 Installation Manual See Contrast table(2)
* 22-4 Caution Card See Contrast table(2)
* 22-5 Card See Contrast table(2)
* 22-6 Caution Card CRP1207
* 22-7 Warranty Card
See Contrast table(2)
23 Case Assy CXB3520
Mark No. Description Part No. Mark No. Description Part No.
(1) PACKING SECTION PARTS LIST
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
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.
- For the applying amount of lubricants or glue, follow the instructions in this manual.
( In the case of no amount instructions, apply as you think it appropriate.)
- Owner's Manual, Installation Manual
Model Part No. Language
DEH-P750MP/XN/UC CRD3767 English, Spanish
CRD3768 English, Spanish
DEH-P7500MP/XN/UC CRD3769 English, Spanish
CRD3770 English, Spanish
DEH-P7550MP/XN/ES CRD3771 English, Spanish, Portuguese(B)
CRD3772 Traditional chinese, Arabic
CRD3773 English, Spanish, Portuguese(B), Traditional chinese, Arabic
7
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P750MP/XN/UC
Part No.
Mark No. Symbol and Description DEH-P750MP/XN/UC DEH-P7500MP/XN/UC DEH-P7550MP/XN/ES
1 Polyethylene Bag CEG1173 CEG1173 CEG-162
3 Accessory Assy CEA3376 CEA3376 CEA3439
5 Screw Assy CEA3848 CEA3848 CEA3849
6 Fixing Screw BPZ20P060FZK BPZ20P060FZK Not used
13 Holder CND1249 CND1249 Not used
14 Holder CND1250 CND1250 Not used
16 Remote Cotrol Unit CXC1361 CXC1361 CXC1265
* 17 Battery Not used Not used CEX1065
18 Carton CHG5089 CHG5088 CHG5087
19 Contain Box CHL5089 CHL5088 CHL5087
22-1 Owner’s Manual CRD3767 CRD3769 CRD3771
22-2 Owner’s Manual Not used Not used CRD3772
22-3 Installation Manual CRD3768 CRD3770 CRD3773
* 22-4 Caution Card Not used Not used CRP1216
* 22-5 Card Not used ARY1048 Not used
* 22-7 Warranty Card CRY1070 Not used Not used
(2) CONTRAST TABLE
DEH-P750MP/XN/UC, DEH-P7500MP/XN/UC and DEH-P7550MP/XN/ES are constructed the same except
for the following:
8
A
A
B
B
C
C
8
10
9
5
2
2
2
7
6
91
2
96
97
67
67
17
32
94
33
27
23
21
30
22
31
19
34
95
18
36
35
92
13
16
4
26
25
29
93
93
67
90
80
79
14
67
59
48
28
60
58
43
41
63
54
47
52
40
15
40
61
51
49
53
39
42
12
11
37
20
20
4
4
38
1
1
3
50
40
56
45
44
62
57
46
64
55
82
86
82
83
84
81
85
66
78
77
89
65
73
74
70
72
88
71
69
76
87
68
75
A
B
D
1
234
12
34
F
E
D
C
B
A
DEH-P750MP/XN/UC
2.2 EXTERIOR(DEH-P750MP/XN/UC,DEH-P7500MP/XN/UC)
1 Screw BMZ30P040FZK
2 Screw BSZ26P060FTC
3 Screw BSZ30P060FTC
4 Screw BSZ30P200FTC
5 Cord Assy CDE7129
6 Flat Cable CDE7149
7 Cord Assy CDE7150
8 Cord Assy CDE7154
9 Case CNB2870
10 Holder CNC8659
11 Earth Plate CNC8915
12 Cushion CNM4870
13 Insulator CNM7935
14 Insulator CNM8174
15 Panel
See Contrast table(2)
16 Tuner Amp Unit
See Contrast table(2)
17 Screw ASZ26P060FTC
18 Screw BPZ26P080FTC
19 Screw BSZ26P160FTC
20 Clamper CEF1035
21 Fuse(10A) CEK1208
22 Pin Jack(CN361) CKB1051
23 Plug(CN981) CKM1376
24 •••••
25 Plug(CN704) CKS-783
26 Plug(CN362) CKS1238
27 Connector(CN101) CKS3408
28 Plug(CN801) CKS3537
29 Connector(CN701) CKS3837
30 Antenna Jack(CN401) CKX1056
31 Holder CND1239
32 Holder CND1352
33 Insulator CNM8245
34 Heat Sink CNR1668
35 FM/AM Tuner Unit CWE1646
36 Holder CND1054
37 Terminal(CN402) VNF1084
38 Chassis Unit CXB9528
39 Button(EJECT) CAC7752
40 Screw(M2x4.5) CBA1647
41 Screw(M2x4) CBA1649
42 Washer CBF1038
43 Spring CBH2650
44 Spring CBH2651
45 Spring CBH2652
46 Spring CBH2653
47 Spring CBL1512
48 Holder CND1254
49 Cover CNM6854
50 Panel CNS7245
51 Gear CNV5997
52 Pin CNV6486
53 Lighting Conductor CNV6487
54 Arm CNV7400
55 Arm CNV7401
56 Arm CNV7402
57 Arm CNV7403
58 Panel Unit CWM8758
59 Socket(CN1950) CKS3550
60 Connector(CN1951) CKS4462
61 Holder Unit CXB9501
62 Holder Unit CXB9502
63 Damper Unit CXB9503
64 Panel Unit(Service) CXX1691
65 Detach Grille Assy
See Contrast table(2)
66 Screw BPZ20P060FTC
67 Screw BPZ20P100FZK
68 Knob
See Contrast table(2)
69 Button(CLK) CAC7751
70 Button(OPEN) CAC7728
71 Button(TEXT/SCRL) CAC7737
72 Button(AUDIO/FUNC) CAC7738
73 Button(1-6) CAC7750
74 Button(CROSS)
See Contrast table(2)
75 Spring CBH2654
76 Spring CBL1470
77 Cushion CNM8291
78 Holder CNV7405
79 Keyboard Unit CWM8713
80 Connector(CN1901) CKS4524
81 Holder CND1354
82 Cushion CNM6633
83 Spacer CNM7697
84 Spacer CNM7698
85 Holder CNV6910
86 OEL Unit MXS8045
87 Grille Unit
See Contrast table(2)
88 Button Unit(SRC/EQ) CXB9924
89 Button Unit
(EQ-EX/BAND) CXB9925
90 Cover XNS7014
91
CD Mechanism Module(S10MP3)CXK5662
92 Screw ISS26P055FTC
93 Transistor(Q742,901,921) 2SD2375
94 Choke Coil(L981) CTH1280
95 IC(IC301) PAL007A
96 Remote Control Unit CXC1361
97 Cover CZN5357
9
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P750MP/XN/UC
Mark No. Description Part No. Mark No. Description Part No.
(1) EXTERIOR(DEH-P750MP/XN/UC, DEH-P7500MP/XN/UC) SECTION PARTS LIST
10
1
234
12
34
F
E
D
C
B
A
DEH-P750MP/XN/UC
Part No.
Mark No. Symbol and Description DEH-P750MP/XN/UC DEH-P7500MP/XN/UC
15 Panel CNS6935 CNS6934
16 Tuner Amp Unit CWM8707 CWM8708
65 Detach Grille Assy CXB9914 CXB9913
68 Knob CAA2764 CAA2761
74 Button(CROSS) CAC7843 CAC7863
87 Grille Unit CXB9855 CXB9853
(2) CONTRAST TABLE
DEH-P750MP/XN/UC and DEH-P7500MP/XN/UC are constructed the same except for the following:
11
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P750MP/XN/UC
12
1
234
12
34
F
E
D
C
B
A
DEH-P750MP/XN/UC
A
A
B
B
C
C
8
10
9
5
2
2
2
7
6
91
2
96
97
67
67
17
32
94
33
27
23
21
30
22
31
19
34
95
18
36
35
92
13
16
4
26
25
29
93
93
67
90
80
79
14
67
59
48
28
60
58
43
41
63
54
47
52
40
15
40
61
51
49
53
39
42
12
11
37
20
20
4
4
38
1
1
3
50
40
56
45
44
62
57
46
64
55
82
86
82
83
84
81
85
66
78
77
89
65
73
74
70
72
88
71
69
76
87
68
75
A
B
D
2.3 EXTERIOR(DEH-P7550MP/XN/ES)
13
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P750MP/XN/UC
1 Screw BMZ30P040FZK
2 Screw BSZ26P060FTC
3 Screw BSZ30P060FTC
4 Screw BSZ30P200FTC
5 Cord Assy CDE7129
6 Flat Cable CDE7149
7 Cord Assy CDE7150
8 Cord Assy CDE7154
9 Case CNB2870
10 Holder CNC8659
11 Earth Plate CNC8915
12 Cushion CNM4870
13 Insulator CNM7935
14 Insulator CNM8174
15 Panel CNS6935
16 Tuner Amp Unit CWM8709
17 Screw ASZ26P060FTC
18 Screw BPZ26P080FTC
19 Screw BSZ26P160FTC
20 Clamper CEF1035
21 Fuse(10A) CEK1208
22 Pin Jack(CN361) CKB1051
23 Plug(CN981) CKM1376
24 •••••
25 Plug(CN704) CKS-783
26 Plug(CN362) CKS1238
27 Connector(CN101) CKS3408
28 Plug(CN801) CKS3537
29 Connector(CN701) CKS3837
30 Antenna Jack(CN401) CKX1056
31 Holder CND1239
32 Holder CND1352
33 Insulator CNM8245
34 Heat Sink CNR1668
35 FM/AM Tuner Unit CWE1646
36 Holder CND1054
37 Terminal(CN402) VNF1084
38 Chassis Unit CXB9528
39 Button(EJECT) CAC7752
40 Screw(M2x4.5) CBA1647
41 Screw(M2x4) CBA1649
42 Washer CBF1038
43 Spring CBH2650
44 Spring CBH2651
45 Spring CBH2652
46 Spring CBH2653
47 Spring CBL1512
48 Holder CND1254
49 Cover CNM6854
50 Panel CNS7245
51 Gear CNV5997
52 Pin CNV6486
53 Lighting Conductor CNV6487
54 Arm CNV7400
55 Arm CNV7401
56 Arm CNV7402
57 Arm CNV7403
58 Panel Unit CWM8758
59 Socket(CN1950) CKS3550
60 Connector(CN1951) CKS4462
61 Holder Unit CXB9501
62 Holder Unit CXB9502
63 Damper Unit CXB9503
64 Panel Unit(Service) CXX1691
65 Detach Grille Assy CXB9915
66 Screw BPZ20P060FTC
67 Screw BPZ20P100FZK
68 Knob CAA2764
69 Button(CLK) CAC7751
70 Button(OPEN) CAC7728
71 Button(TEXT/SCRL) CAC7737
72 Button(AUDIO/FUNC) CAC7738
73 Button(1-6) CAC7750
74 Button(CROSS) CAC7843
75 Spring CBH2654
76 Spring CBL1470
77 Cushion CNM8291
78 Holder CNV7405
79 Keyboard Unit CWM8713
80 Connector(CN1901) CKS4524
81 Holder CND1354
82 Cushion CNM6633
83 Spacer CNM7697
84 Spacer CNM7698
85 Holder CNV6910
86 OEL Unit MXS8045
87 Grille Unit CXB9854
88 Button Unit(SRC/EQ) CXB9924
89 Button Unit
(EQ-EX/BAND) CXB9925
90 Cover XNS7014
91
CD Mechanism Module(S10MP3)CXK5662
92 Screw ISS26P055FTC
93 Transistor(Q742,901,921) 2SD2375
94 Choke Coil(L981) CTH1280
95 IC(IC301) PAL007A
96 Remote Control Unit CXC1265
97 Cover CNS7068
Mark No. Description Part No. Mark No. Description Part No.
- EXTERIOR(DEH-P7550MP/XN/ES) SECTION PARTS LIST
14
1
234
12
34
F
E
D
C
B
A
DEH-P750MP/XN/UC
2.4 CD MECHANISM MODULE
1
1
1
2
2
1
2
2
1
1
1
1
1
1
2
2
3
1
1
1
1
1GEM1024
2GEM1045
3GEM1035
C
15
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P750MP/XN/UC
Mark No. Description Part No. Mark No. Description Part No.
1 CD Core Unit(S10MP3) CWX2792
2 Connector(CN101) CKS4182
3 Connector(CN901) CKS4017
4 Screw BMZ20P035FTC
5 Screw BSZ20P040FTC
6 Screw(M2x4) CBA1362
7 Screw(M2x3) CBA1511
8 Screw(M2x3) CBA1527
9 Washer CBF1037
10 Washer CBF1038
11 Washer CBF1060
12 Spring CBH2390
13 Spring CBH2606
14 Spring CBH2607
15 Spring CBH2608
16 Spring CBH2609
17 Spring CBH2610
18 Spring CBH2611
19 Spring CBH2612
20 Spring CBH2613
21 Spring CBH2614
22 Spring CBH2615
23 Spring CBH2616
24 Spring CBH2617
25 Spring CBH2620
26 Spring CBH2621
27 Spring CBH2641
28 Spring CBH2642
29 Spring CBH2643
30 Spring CBH2659
31 Spring CBH2688
32 •••••
33 Shaft CLA3845
34 Frame CNC9962
35 Frame CNC9963
36 Bracket CNC9966
37 Bracket CNC9967
38 Arm CNC9968
39 Arm CNC9973
40 Lever CNC9983
41 Lever CNC9984
42 Sheet CNM8134
43 Collar CNV6906
44 Guide CNV6925
45 Arm CNV7198
46 Rack CNV7199
47 Holder CNV7201
48 Holder CNV7202
49 Arm CNV7203
50 Gear CNV7207
51 Gear CNV7208
52 Gear CNV7209
53 Gear CNV7210
54 Gear CNV7211
55 Gear CNV7212
56 Rack CNV7214
57 Arm CNV7215
58 Arm CNV7216
59 Guide CNV7217
60 Roller CNV7218
61 Gear CNV7219
62 Arm CNV7221
63 Arm CNV7220
64 Arm CNV7222
65 Damper CNV7313
66 Damper CNV7314
67 Arm CNV7341
68 Arm CNV7342
69 Guide CNV7360
70 Guide CNV7361
71 Holder CNV7437
72 Arm CNV7444
73 Gear CNV7595
74 Damper CNV7618
75 Motor Unit(M1) CXB6007
76 Chassis Unit CXB8728
77 Screw Unit CXB8729
78 Gear Unit CXB8731
79 Arm Unit CXB8732
80 Arm Unit CXB8735
81 Arm Unit CXB8852
82 Motor Unit(M2) CXB8933
83 Bracket CNC9985
84 •••••
85 Screw(M2x5) EBA1028
86 Screw JFZ20P020FTC
87 Screw JGZ17P022FTC
88 Washer YE15FTC
89 Washer YE20FTC
90 Pickup Unit(Service)(P10) CXX1641
91 Screw IMS26P030FTC
92 Connector(CN902) CKS2191
- CD MECHANISM MODULE SECTION PARTS LIST
16
ASENBO
85
MUTE
XIN
XOUT
PEE
22
38
80
28
27
79
SYSTEM CONTROLLER
IC 601(2/2)
PD5804A
CN401
1
2
BUS-
BUS+
BUS+L
BUS-L
TX
RX
IPPW
SWVDD
TUNER AMP UNIT
13
X601
11
EVST,EVCK
TUN L
BUS+L
BUS-L
CD L
33
DPDT
34
KYDT
1
SYSPW
EJTIN
42
41
ILMPW
S80
DSENS
39
dsens
A
5
8
1
7
CN101
11
BUZZER
IC 101
HA12187FP
IP-BUS DRIVER
1
2
8
6
5
TX
RX
IPPW
BU
Q101
TUN 3.3V
SYS+B
VDD
ANTENNA
92
LVLINL
LEVEL IN
BU
Q821
20
OELPW
BU
SP 601
IC 801(2/2)
1211
35
ROT136ROT0
VDD
AS
FLPILM
40
CN701
3
5
16
10
4
BRST,BRXEN,BSRQ
BDATA,BSCK,
CD5VON,DSPMUTE,
DSPOKOUT,CDA/D
VD
Q743
2
CD5VON
BU
Q741
Q742
VDD
VD
TC74VHCT125AFT
98
IC 801(1/2)
2
5
CDRX
CDTX
GDTC1
GDTC2
1
4
GDTC1
GDTC2
13
10
TC74VHCT125AFT
1
2
SYS
89
SYSPW2
Q321
VDD
SYSPW
47
gdtc@
GDTC2
43
gdtc!
GDTC1
CN704
BRST,BRXEN,BSRQ
Q602
Q603
MUTE
C
CN901
Q101
M
LASER
DIODE
MONITOR
DIODE
CLAMP
SENSE
DISC
SENSE
FOCUS ACT.
SPINDLE
MOTOR
M
CARRIAGE
MOTOR
LOAD/
TRACKING ACT.
LD-
MD
FO+
TO+
15
5
1
4
PICKUP UNIT
(SERVICE)(P10)
HOLOGRAM
UNIT
IC 301
BA5996FM
IC 201
UPD63760GJ
IC 703
+3.3V REGULATOR
RF-AMP,CD DECODER,
MP3 DECODER,
DIGITAL SERVO / DATA PROCESSOR
CD
DRIVER
3
VD1
VD1
3VDD
10
L-OUT
5
CN101
TOP
FOP
16
SOP
15
SOM
18
LCOP
17
LCOM
22
4,5
LOEJ
43
35
LOUT
42
9
CONT
12
FOP
TD/FD
AC,BD
F,E
SD/MD
1
13
TOP
HOME
12EJ
SENSE
8EJ
SENSE
LD+
14
142
LD
141
PD
CD CORE UNIT(S10MP3)
X202
DSCSNS
CONT
LOEJ
HOME
75
77
28
26
VDD
IC 203
BA033SFP
+3.3V REGULATOR
V3R3D
2
4
VD2
CD3VON
25
VDCONT
24
1
S-818A33AUC-BGN
CD CONTROLLER
IC 701
PE5385A
33
CDMUTE
4
V3R3D
WINT,
WAIT,
RFOK
IC 501(2/2)
UPD61002GC
DRAM
IC 202
MSM51V4265EP-70TS
WMA DECODER
TC74VHCT08AFT
IC 702
XWINT,
XWAIT,
FOK
16
BDATA,BSCK,
CD5VON,DSPMUTE,
DSPOK,CDA/D
IC 502
BA25BC0WFP
+2.5V REGULATOR
V2R5
2
4
VD2
1
2
Q701
17
ADENA
14 VCC
VDD
15
5
1
4
14
CLAMP
93
VD2
VDCONT
38
XTAL1
3635
X2 X1
X701
2
1
TX
RX
98
FTXD
TX
97
FRXD
RX
CN902
FMRF
ANT adj
RF adj
FM ANT
T51
CF52
CF51
RFGND
OSCGND
DGND
AUDIOGNDNCVCC
VDD_3.3
3.3V
2.5V
IC 4
3.3V 2.5V
←
IC 2
2.5V
WC
CE2
ROM_VDD
SL
DI
CK
CE1
NC
DO
NCNCNC
NC
7 6 13 5 10 9 8 11 14 18 19 20 21
1
3
212 152216 4 17
IC 1
3.3V
AM ANT
FMRF
ATT
LPF
OSC
IC 3 EEPROM
5.0V
IC 5
5V 3.3V
←
ATT
MIXER, IF AMP
DET, FM MPX,
RDS DECODER
24
23
Rch
Lch
FM/AM TUNER UNIT
1
234
12
34
F
E
D
C
B
A
DEH-P750MP/XN/UC
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
17
10
1
BSENS
ASENS
VDD
BU
72
73
10
FL
11
RL
ILB
SWDVDD
23
21
3
5
FLFL+
RLRL+
ACC
IN3-L
42
IN4+L
43
IN4-L
44
IN2-L
41
FLIN
14
RLIN
12
22 4
RESET
POWER AMP
IC 601(1/2)
PD5804A
IC 131
PML009A
IC 652
IC 301
PAL007A
reset
VDD
Q901
Q931
SYSPW
ELECTRONIC VOLUME/
SOURCE SELECTOR
STBYMUTE
Q831
2
EVST,EVCK,EVDT
TUN L
S+L
S-L
L
DPDT
KYDT
SYS+B
BU
Q922
Q923
BU
Q301
MUTE
PL
NON-FAD/SW L
FL
Q361
FRONT L
12
PL
7
2
11
14
7
2
11
14
CN1950
CN1951
4
2
10
8
PANEL UNIT
MUTE
S801
DSENS
SYSTEM CONTROLLER
Q951
VDD
TELIN
8
25
B.REMOTE
VDD REGULATOR
BACKUP SENSE
ACC SENSE
TELEPHONE MUTE
SYS +B REGULATOR
14
8
6
5
7
16
9
11
14
8
6
5
7
16
9
11
15 15
D
CN981
Q364
BU
CN361
FUSE
10A
SL
tunpce@
TUNPCE1
TUNPDI
TUNPDO
95
69
70
98
99
TUNPCK
100
ce@
CE1
6
2
BA033FP
IC 861
13
SYS+B
TUN 3.3V
TUNER 3.3V REGULATOR
Q921
DO
DI
CK
Q902
DALMON
67
BU
6,20
Q501
10 10 5
Q362
PL
FL
Q941
isens
81
ILM SENSE
12
12
NJM4558MD
IC 171
57
1
SEL_OUT_L
LEVEL INDICATOR
MIC
13
MICIN
MICROPHONE
1
Q821
Q822
ILB
BU
Q841
Q842
IC 841
NJM2360M
65
13
13
9
12
12
7
ROT1
ROT0
VDD
MIC 321
BD4835G
15
ASLIN
93
ASLIN
NOISEDET
CN801
8
8
S1970
EJECT
9
9
DGND
BU
5
6
5
6
Q801
PA2028A
IC 341
1411
HIGH OUTPUT
187
169
RL
Q363
2
CN362
RL
REAR L
OEL+B
OEL+B
32
65
1
1
4
SYSPW2
SYSPW2
SYS+B
VOLUME
RL-
RL+
BACK UP
GND
ACC
B.REM
ILM
TEL MUTE
FL-
FL+
ILB
SWVDD
OELB
IC 1940
PD5808A
OEL CONTROLLER/
KEY CONTROLLER
9
11
8
KEY DATA
OEL DATA
AVCC
97
CN1901
KEYBOARD UNIT
3
5
DPDT
KYDT
IC 1990
PD8105A
FONT ROM
IC 1901
RS-140
REMOTE CONTROL
SENSOR
OPT IN
4
1
5
REM
27
28
DPDT
KTDT
OEL UNIT
4,16
2,8
IC 1902
S-818A33AUC-BGN
3.3V REGULATOR
15
B
S1901
3
2
1
4
6
ROT1
ROT0
ROT1
ROT0
KEY MATRIX
ILLUMINATION
Q1960
Q1961
IC1970 IC1971
VDD114VDD2
60
23
VCC
16V
9V
IC 1980
PD6405A
FLASH MEMORY
37
VCC
ILB
ILB
TC7WH32FU
IC 1981
12
26
ce
ce
cs#45cs)
48
Q1981
Q1980
3
7
6
5
2
flbusy
98
16V
16V
12
reset
Q1982
3.3V
flstsy
93
3.3V
XIN
XOUT
13
X1940
11
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P750MP/XN/UC
A-a A-b
A-a
A-b
A-b
A-a
Large size
SCH diagram
Guide page
Detailed page
Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or
"ELECTRICAL PARTS LIST".
A-a
A D
Decimal points for resistor
and capacitor fixed values
are expressed as :
2.2 2R2
0.022 R022
←
←
The > mark found on some component parts indicates
the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of
identical designation.
Symbol indicates a resistor.
No differentiation is made between chip resistors and
discrete resistors.
NOTE :
Symbol indicates a capacitor.
No differentiation is made between chip capacitors and
discrete capacitors.
C
CN901
CN902
FM/AM TUNER UNIT
B
CN1901
D
PANEL UNIT
A
TUNER AMP UNIT
111098
65
2143
7
EJECT
DSENSE
FM(100%):-19.5dBs
AM(30%):-30.0dBs
CD:0dBs
IP-BUS:+2.2dBs
FM:-20.5dBs
AM:-31.0dBs
IP-BUS: +2.2dBs
CD: 0dBs
FM:+2.6dBs
AM: -7.9dBs
IP-BUS:+8.3dBs
CD:+8.1dBs
18
1
234
12
34
F
E
D
C
B
A
DEH-P750MP/XN/UC
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)
A-b
A
REAR
L CH
CEK1208
10A
>
REAR
R CH
FRONT
R CH
FRONT
L CH
SUBWOOFER
R CH
SUBWOOFER
L CH
>
>
600µH
BACKUP
GND
RL—
RL+
FL—
FL+
B.REM
ILL
ACC
TEL
RR—
RR+
FR—
FR+
4
3
1
2
8
7
5
6
FM:+10.1dBs
AM: -0.4dBs
IP-BUS:+15.8dBs
CD:+15.6dBs
FM:+28.6dBs
AM:+18.1dBs
IP-BUS:+34.3dBs
CD:+34.1dBs
19
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P750MP/XN/UC
A-a
A-b
A-a
A-a
A-b
1
2
3
4
Decimal points for resistor
and capacitor fixed values
are expressed as :
2.2 2R2
0.022 R022
←
←
The > mark found on some component parts indicates
the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of
identical designation.
Symbol indicates a resistor.
No differentiation is made between chip resistors and
discrete resistors.
NOTE :
Symbol indicates a capacitor.
No differentiation is made between chip capacitors and
discrete capacitors.
A
TUNER AMP UNIT
CD:0dBs
FM:-20.5dBs
AM:-31.0dBs
IP-BUS: +2.2dBs
CD: 0dBs
FM:+2.6dBs
AM: -7.9dBs
IP-BUS:+8.3dBs
CD:+8.1dBs
20
1
234
12
34
F
E
D
C
B
A
DEH-P750MP/XN/UC
A-a
A-b
A-a
A-a
A-b
D
5
6
7
C
CN901
CN902
FM/AM TUNER UNIT
B
CN1901
D
PANEL UNIT
111098
65
2143
7
EJECT
DSENSE
FM(100%):-19.5dBs
AM(30%):-30.0dBs
IP-BUS:+2.2dBs
21
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P750MP/XN/UC
A-a
A-b
A-b
1
2
3
4
REAR
L CH
REAR
R CH
FRONT
R CH
FRONT
L CH
SUBWOOFER
R CH
SUBWOOFER
L CH
>
>
4312875
6
FM:+10.1dBs
AM: -0.4dBs
IP-BUS:+15.8dBs
CD:+15.6dBs
22
1
234
12
34
F
E
D
C
B
A
DEH-P750MP/XN/UC
A-a
A-b
A-b
5
6
7
CEK1208
10A
>
600µH
BACKUP
GND
RL—
RL+
FL—
FL+
B.REM
ILL
ACC
TEL
RR—
RR+
FR—
FR+
FM:+28.6dBs
AM:+18.1dBs
IP-BUS:+34.3dBs
CD:+34.1dBs
23
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P750MP/XN/UC
24
B
CN1951
D
VOLUME
REMOTE CONTROL SENSOR
3.3V REGULATOR
1
234
12
34
F
E
D
C
B
A
DEH-P750MP/XN/UC
3.3 KEYBOARD UNIT
25
B
B
KEYBOARD UNIT
OEL UNIT
MXS8045
15K(B)
20K(B)
OEL/KEY CONTROLLER
FONT ROM
FLASH MEMORY
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P750MP/XN/UC
C-a
C
6R8K6R8K
PICKUP UNIT(SERVICE)(P10)
1R8K
9P
100P
R756
100K
R752 220
R751
TX
RX
220
R757 100K
47K
M1 CXB6007
M2 CXB8933
LOADING/CARRIAGE
MOTOR
SPINDLE MOTOR
SWITCHES:
CD CORE UNIT(S10MP3)
S901 : HOME SWITCH.....ON-OFF
S902 : CLAMP SWITCH....ON-OFF
S903 : DSCSNS SWITCH....ON-OFF
S904 : 12EJ SWITCH....ON-OFF
S905 : 8EJ SWITCH....ON-OFF
The underlined indicates the original switch position.
CN902
A
CN704
1
8
6
5
0
!
2
)
3
(
7
@
#
F
F
T
T
T
T
T
T
T
T
F
F
F
F
F
F
C
S
T
F
C
S
T
F
C
S
T
F
F
F
T
T
S
S
C
C
S
S
C
C
F
F
T
T
D-RAM
CD DRIVER
SW 3.3 REGULATOR
5/3.3
26
1
234
12
34
F
E
D
C
B
A
DEH-P750MP/XN/UC
3.4 CD MECHANISM MODULE(GUIDE PAGE)
C-b
C
PE5385A
MA152WA
4R7/25
4R7/25
R240
0R0
R241
220
0R0
R755
CD3VON
C717
X702
CSS1627
16.000MHz
8P
C718
8P
C
CD CORE UNIT (S10MP3)
A
CN701
4
9
$
%
^
&
*
F
T
C
S
SIGNAL LINE
FOCUS SERVO LINE
TRACKING SERVO LINE
CARRIAGE SERVO LINE
SPINDLE SERVO LINE
SW 2.5 REGULATOR
3.3 REGULATOR
MICRO COMPUTER
27
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P750MP/XN/UC
A-a
C-b
C-a
C-a
C-b
6R8K6R8K
PICKUP UNIT(SERVICE)(P10)
1R8K
9P
100P
D-RAM
0
!
#
F
F
T
T
T
T
T
T
T
T
F
F
F
F
F
F
C
S
T
F
C
S
T
F
F
F
T
T
28
1
234
12
34
F
E
D
C
B
A
DEH-P750MP/XN/UC
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