Pioneer Super Tuner III DEH-P7400MP User 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 2001 K-ZZD. DEC. 2001 Printed in Japan
-This service manual should be used together with the following manual(s):
Model No. Order No. Mech. Module Remarks
CX-3007 CRT2820 S9MP3 CD Mech. Module:Circuit Description, Mech.Description, Disassembly
CONTENTS
1. SAFETY INFORMATION ............................................3
2. EXPLODED VIEWS AND PARTS LIST.......................4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...10
4. PCB CONNECTION DIAGRAM ................................28
5. ELECTRICAL PARTS LIST ........................................36
6. ADJUSTMENT..........................................................42
7. GENERAL INFORMATION .......................................51
7.1 DIAGNOSIS ........................................................51
7.1.1 DISASSEMBLY .........................................51
7.1.2 CONNECTOR FUNCTION DESCRIPTION.......55
7.2 IC ........................................................................56
7.3 OPERATIONAL FLOW CHART...........................68
7.4 CLEANING ..........................................................69
8. OPERATIONS AND SPECIFICATIONS.....................70
For details, refer to "Important symbols for good services".
ORDER NO.
CRT2784
MULTI-CD/DAB CONTROL HIGH POWER CD/MP3 PLAYER WITH RDS TUNER
Service
Manual
DEH-P7400MP XN/EW

2
DEH-P7400MP
-CD Player Service Precautions
1. For pickup unit(CXX1550) handling, please refer
to"Disassembly"(see page 51)
During replacement, handling precautions shall be
taken to prevent an electrostatic discharge(protection
by a jumper-solder).
2. During disassembly, be sure to turn the power off
since an internal IC might be destroyed when a con-
nector is plugged or unplugged.
3. Please checking the grating after changing the ser-
vice pickup unit(see page 45).
[ 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.

3
DEH-P7400MP
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.
1. Safety Precautions for those who Service this Unit.
• When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable
results.
Caution:
1. During repair or tests, minimum distance of 13cm from the focus lens must be kept.
2. During repair or tests, do not view laser beam for 10 seconds or longer.
2. A “CLASS 1 LASER PRODUCT” label is affixed to the
bottom of the player.
3. The triangular label is attached to the mechanism
unit frame.
4. Specifications of Laser Diode
Specifications of laser radiation fields to which human access is possible during service.
Wavelength = 800 nanometers
CLASS 1
LASER PRODUCT

4
DEH-P7400MP
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
10
14
16
13 1
9
12
15
2
7
5
6
4
3
8
11

5
DEH-P7400MP
1 Cord Assy CDE6435
2 Accessory Assy CEA3062
3 Screw BPZ20P060FZK
4 Screw CBA1002
5 Handle CNC5395
6 Earth Plate CNC9450
7 Bush CNV3930
* 8 Polyethylene Bag E36-615
9 Polyethylene Bag CEG-162
10 Carton CHG4613
11 Contain Box CHL4613
12 Protector CHP2251
13 Protector CHP2252
14 Inner Box CHW1754
15-1 Owner’s Manual CRD3506
15-2 Owner’s Manual CRD3507
15-3 Owner’s Manual CRD3508
15-4 Installation Manual CRD3525
* 15-5 Caution Card CRP1207
* 15-6 Passport CRY1013
* 15-7 Warranty Card CRY1157
15-8 Polyethylene Bag CEG1116
16 Case Assy CXB3520
Mark No. Description Part No. Mark No. Description Part No.
-PACKING SECTION PARTS LIST
-Owner's Manual, Installation Manual
Part No. Language
CRD3506 English, Spanish
CRD3507 German, French
CRB3508 Italian, Dutch
CRD3525 English, Spanish, German, French, Italian, Dutch
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.)

6
DEH-P7400MP
2.2 EXTERIOR

7
DEH-P7400MP
1 Screw BMZ30P040FZK
2 Screw BMZ30P100FMC
3 Screw BSZ26P060FMC
4 Screw BSZ30P040FMC
5 Cord Assy CDE6435
6 Cap CKX-003
7 Cord Assy CDE6717
8 Cable CDE6718
9 Cord Assy CDE6747
10 Fuse(10A) CEK1136
11 Case CNB2686
12 Holder CNC5704
13 Holder CNC8659
14 Cushion CNM4870
15 Insulator CNM7214
16 Insulator CNM7629
17 Insulator CNM7682
18 Tuner Amp Unit CWM7982
19 Screw ASZ26P060FMC
20 Screw BPZ26P120FMC
21 Screw BSZ26P160FMC
22 Clamper CEF1007
23 Pin Jack(CN351) CKB1035
24 Plug(CN901) CKM1330
25 Plug(CN451) CKS1049
26 Connector(CN101) CKS3408
27 Plug(CN801) CKS3537
28 Connector(CN352) CKS3602
29 Connector(CN653) CKS3833
30 Antenna Jack(CN401) CKX1056
31 Holder CNC5399
32 Holder CNC8615
33 Holder CNC9468
34 Insulator CNM6949
35 Heat Sink CNR1583
36 FM/AM Tuner Unit CWE1562
37 Holder CNC8815
38 Button(EJECT) CAC6839
39 Screw(M2x2) CBA1176
40 Washer CBF1038
41 Washer CBF1039
42 Spring CBH2428
43 Spring CBH2429
44 Spring CBL1512
45 Holder CNC9096
46 Cover CNM6854
47 Panel CNS6930
48 Pin CNV6486
49 Lighting Conductor CNV6487
50 Gear CNV6507
51 Arm CNV6508
52 Panel Unit CWM7986
53 Socket(CN1850) CKS3550
54 Connector(CN1851) CKS4462
55 Damper Unit CXB5070
56 Holder Unit CXB6356
57 Holder Unit CXB6357
58 Clutch Unit CXB6358
59 Screw IMS20P045FZK
60 Detach Grille Assy CXB7912
61 Screw BPZ20P080FMC
62 Screw BPZ20P100FZK
63 Button(SELECT) CAC7220
64 Button(SFEQ) CAC7221
65 Button(TA) CAC7223
66 Button(AUDIO) CAC7224
67 Button(1-6) CAC7225
68 Button(DISP) CAC7226
69 Button(OPEN) CAC7227
70 Button(EQ) CAC7231
71 Button(FUNC) CAC7489
72 Spring CBH2630
73 Spring CBH2431
74 Spring CBH2430
75 Spring CBL1470
76 Cover CNS6740
77 Holder CNV6505
78 Holder CNV6506
79 Holder CNV6909
80 Keyboard Unit CWM7988
81 Connector(CN1901) CKS4524
82 Holder CNC9642
83 Cushion CNM6633
84 Cushion CNM7469
85 Spacer CNM7697
86 Spacer CNM7698
87 Holder CNV6910
88 IC(IC1903) TSOP1840SB3V
89 OEL Unit MXS8017
90 Sub Grille Assy CXB8814
91 IC(IC301) PAL007A
92 Chassis Unit CXB8479
93 CD Mechanism Module(S9MP3) CXK5555
94 Screw ISS26P055FUC
95 Transistor(Q921,999) 2SD2396
* 96 Knob CAA2697
97 Spacer CNM7807
98 Cushion CNM7808
Mark No. Description Part No. Mark No. Description Part No.
-EXTERIOR SECTION PARTS LIST

8
DEH-P7400MP
2.3 CD MECHANISM MODULE
D
GEM1035
GEM1035
GEM1040

9
DEH-P7400MP
Mark No. Description Part No. Mark No. Description Part No.
1 CD Core Unit(S9MP3) CWX2617
2 Connector(CN901) CKS4186
3 Connector(CN101) CKS3486
4 Screw BMZ20P025FMC
5 Screw BSZ20P040FMC
6 Screw(M2x4) CBA1362
7 Screw(M2x3) CBA1527
8 Screw CBA1545
9 Washer CBF1037
10 Washer CBF1038
11 Washer CBF1039
12 Washer CBF1060
13 Spring CBH2378
14 Spring CBH2379
15 Spring CBH2514
16 Spring CBH2533
17 Spring CBH2382
18 Spring CBH2383
19 Spring CBH2384
20 Spring CBH2527
21 Spring CBH2386
22 Spring CBH2537
23 Spring CBH2390
24 Spring CBH2391
25 Spring CBH2523
26 Spring CBH2426
27 Spring CBH2444
28 Spring CBL1561
29 Spring CBL1553
30 Shaft CLA3845
31 Roller CLA3910
32 Frame CNC9654
33 Lever CNC9664
34 Lever CNC8949
35 Arm CNC9661
36 Arm CNC9016
37 Arm CNC9017
38 Bracket CNC9123
39 Frame CNC9656
40 Belt CNT1086
41 Gear CNV6886
42 Gear CNV6316
43 Gear CNV6317
44 Gear CNV6318
45 Gear CNV6319
46 Gear CNV6320
47 Arm CNV6322
48 Arm CNV6323
49 Arm CNV6324
50 Arm CNV6888
51 Arm CNV6889
52 Guide CNV6327
53 Arm CNV6924
54 Guide CNV6921
55 Rack CNV6923
56 Clamper CNV6331
57 Arm CNV6332
58 Guide CNV6333
59 Cover CNV6334
60 Arm CNV6335
61 Guide CNV6336
62 Roller CNV6338
63 Damper CNV6175
64 Damper CNV6662
65 Guide CNV6925
66 Chassis Unit CXB7980
* 67 Arm Unit CXB7983
68 Arm Unit CXB7984
69 Arm Unit CXB7985
70 Motor Unit(M2) CXB5903
71 Screw Unit CXB5904
72 Gear Unit CXB8076
73 Bracket Unit CXB7982
74 Motor Unit(M1) CXB6007
75 Arm Unit CXB8504
76 Screw(M2x5) EBA1028
77 Screw JFZ20P020FMC
78 Screw JGZ17P020FZK
79 Washer YE15FUC
80 Washer YE20FUC
81 Pickup Unit(Service)(P9MP3) CXX1550
82 Screw IMS26P030FMC
83 Guide CNV6922
84 Roller CNV6887
85 Spring CBH2509
86 Spring CBH2512
87 Spring CBH2536
88 Collar CNV6906
-CD MECHANISM MODULE SECTION PARTS LIST

10
DEH-P7400MP
A
1234
B
C
D
1234
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
Q153 Q151
Q402
Q155
Q501
IC 501
PM4009A
IC 101
HA12187FP
X501
RDS
DECODER
IP-BUS DRIVER
1211
20
8
87
MUTE
XOUT
XIN
PEE
24
OELPW
22
40
SYSTEM CONTROLLER
IC 601(2/2)
PD5702A
CN401
VDD
VCC
ANT 1
2
BUS-
BU
BUS+
BUS+L
BUS-L
1
2
8
6
5TX
RX
IPPW
SWVDD
BU
CN653
BU
Q852
Q991
Q999
TUNER AMP UNIT
13
X
15
14
24
VDD
SWDACC
T
BUS+L
BUS-L
CD L
Q851
35
DPDT
36
KYDT
23
SYSPW
Q101
Q102
IC 851
NJM2360
6
EJTIN 44
43
ILMPW
41
DSENS
TEL
FUSE
200mA
2
1
CN451
TEL
P-BUS
P-BUS
VDD
Q602
Q603
MUTE
TC7SET
IC 80
4
94
LVLINL
L
A
D
5
8
1
7
CN101
11
BUZZER
IC 3
EEPROM
FM/AM TUNER UNIT
28
27
FM/AM 1ST IF 10.7MHz
T51 Q51 CF51 CF52 CF53
IC1
MIXER, IF AMP, DET.
6
21
18
LDET
COMP
22
25 10 14 12 15 16 8 13 2 3 4
CF202
VDD
VCC
DI/DO CE2 CK CE1 SDBW SL FMSD NL1 NL2
IC 2 FM MPX
AMANT
FMANT
ATT
ATT
AMRF
FMRF
RF ADJ
ANT2 ADJ
X901
10.25MHz
ANT1 ADJ
LOCL
23 LOCH
AMDET
MPXREF 41kHz
AM 2ND IF
450kHz
19
CREQ
11
DGND
1
STIND
L ch
5
R ch
924
NC FMLOCL
20177
NC NC WC
26 RFGND
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)(P9MP3)
HOLOGRAM
UNIT
IC 301
BA5996FM
IC 201
UPD63760GJ
IC 703
+3.3V REGULATOR
RF-AMP,CD DECODER,
MP3 DECODER,
DIGITAL SERVO / DATAPROCESSOR
CD
DRIVER
2
VD
VD
3VDD
12
L-OUT
1
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
S901
HOME
12EJ
SENSE 8EJ
SENSE
LD+ 14
142 LD
141 PD
2
12
1
CD CORE UNIT(S9MP3)
3938
X201 X202
DSCSNS
CONT
LOEJ
HOME
78
80
31
29
5VDD
IC 203
BA033SFP
+3.3V REGULATOR
V3R3D 2
4VD
CD3VON
28
VDCONT
27
1
S-818A33AUC-BGN
CD CONTROLLER
IC 701
PE5268A
33
CDMUTE
33
V3R3D
WAIT,
RFOK
IC 704
PDH043A
DRAM
IC 202
MSM51V4265EP-70TS
ROM
TC74VHCT08AFT
IC 702
XWINT,
XWAIT,
FOK
13 13