Pioneer DEH-P2580 Schematic
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 2002
K-ZZA. OCT. 2002 Printed in Japan
ORDER NO.
CRT2983
MULTI-CD CONTROL HIGH POWER CD PLAYER WITH FM/AM TUNER
DEH-P2550XM/ES, XN/ES
DEH-P2550/XM/ES
- This service manual should be used together with the following manual(s):
Model No. Order No. Mech. Module Remarks
CX-3026 CRT2944 S10 CD Mech. Module:Circuit Description, Mech.Description, Disassembly
For details, refer to "Important symbols for good services".
2
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DEH-P2550/XM/ES
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.
[ 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:
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.
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.
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.
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.
3
5
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7
8
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5
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7
8
DEH-P2550/XM/ES
- CD Player Service Precautions
1. Before disassembling the unit, be sure to turn off the
power. Unplugging and plugging the connectors dur-
ing power-on mode may damage the ICs inside the
unit.
2. To protect the pickup unit from electrostatic dis-
charge during serviving, take an appropriate treat-
ment(shorting-solder) by referring to "the DISAS-
SEMBLY" on page 41.
3. After replacing the pickup unit, be sure to check the
grating.(See p.38.)
CONTENTS
SAFETY INFORMATION ............................................................................................................................................2
1. SPECIFICATIONS .......................................................................................................................................................4
2. EXPLODED VIEWS AND PARTS LIST.......................................................................................................................5
2.1 PACKING...............................................................................................................................................................5
2.2 EXTERIOR.............................................................................................................................................................6
2.3 CD MECHANISM MODULE .................................................................................................................................8
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM...................................................................................................10
3.1 BLOCK DIAGRAM ..............................................................................................................................................10
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) ........................................................................................12
3.3 KEYBOARD UNIT ...............................................................................................................................................18
3.4 CD MECHANISM MODULE ...............................................................................................................................20
4. PCB CONNECTION DIAGRAM ................................................................................................................................24
4.1 TUNER AMP UNIT .............................................................................................................................................24
4.2 PANEL UNIT .......................................................................................................................................................28
4.3 KEYBOARD UNIT ...............................................................................................................................................29
4.4 CD MECHANISM MODULE ...............................................................................................................................30
5. ELECTRICAL PARTS LIST ........................................................................................................................................32
6. ADJUSTMENT .........................................................................................................................................................36
6.1 CD ADJUSTMENT .............................................................................................................................................36
6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT................................................................38
6.3 ERROR MODE ....................................................................................................................................................40
7. GENERAL INFORMATION .......................................................................................................................................41
7.1 DIAGNOSIS ........................................................................................................................................................41
7.1.1 DISASSEMBLY ..............................................................................................................................................41
7.1.2 CONNECTOR FUNCTION DESCRIPTION ....................................................................................................43
7.2 PARTS .................................................................................................................................................................44
7.2.1 IC ....................................................................................................................................................................44
7.2.2 DISPLAY.........................................................................................................................................................52
7.3 OPERATIONAL FLOW CHART...........................................................................................................................53
7.4 CLEANING ..........................................................................................................................................................54
8. OPERATIONS ...........................................................................................................................................................55
1. SPECIFICATIONS
4
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DEH-P2550/XM/ES
Backup current
5 mA or less
5
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P2550/XM/ES
1 Cord Assy CDE7060
2 Accessory Assy CEA3439
3 Spring CBH1650
4 Screw Assy CEA3437
5-1 Owner’s Manual
CRD3690
5-2 Owner’s Manual
CRD3691
5-3 Installation Manual
CRD3692
6 Screw CBA1002
* 7 Polyethylene Bag CEG-127
8 Screw CRZ50P090FTC
9 Screw TRZ50P080FTC
* 10 Polyethylene Bag CEG-158
11 Handle CNC5395
12 Case Assy CXB3520
)
13 Remote Control Unit CXC1265
14 Bush CNV3930
15 Polyethylene Bag CEG1173
* 16 Battery CEX1065
17
Carton(DEH-P2550/XM/ES)
CHG4961
Carton(DEH-P2550/XN/ES)
CHG4975
18 Contain Box(DEH-P2550/XM/ES)
CHL4975
Contain Box(DEH-P2550/XN/ES)
CHL4961
19 Protector CHP2663
20 Protector CHP2664
Mark No. Description Part No. Mark No. Description Part No.
- 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.
- 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.)
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
- Owner's Manual, Installation Manual
Model Part No. Language
DEH-P2550/XM/ES
CRD3690
English, Spanish, Portuguese(B)
DEH-P2550/XN/ES
CRD3691
Traditional Chinese, Arabic
CRD3692
English, Spanish, Portuguese(B), Traditional Chinese, Arabic
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DEH-P2550/XM/ES
2.2 EXTERIOR
7
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P2550/XM/ES
1 Remote Control Unit CXC1265
2 Cover CNS7068
3 Screw ISS26P055FTC
4 Screw BMZ30P040FZK
5 Screw BSZ26P060FTC
6 Screw BSZ30P060FTC
7 Screw BSZ30P200FTC
8 Cord Assy CDE7060
9 Cable CDE7188
10
CD Mechanism Module(S10)
CXK5600
11 Case CNB2793
12 Earth Plate CNC8915
13 Cushion CNM4870
14 Insulator CNM7935
15 Insulator CNM8174
16 Panel CNS6935
17 Tuner Amp Unit CWM8619
18 Screw ASZ26P060FTC
19 Screw BPZ26P080FTC
20 Screw BSZ26P160FTC
21 Fuse(10A) CEK1208
22 FM/AM Tuner Unit CWE1646
23 Holder CND1054
24 Pin Jack(CN351) CKB1059
25 Plug(CN981) CKM1376
26 Connector(CN101) CKS3408
27 Plug(CN831) CKS3537
28 Connector(CN721) CKS3835
29 Antenna Jack(CN401) CKX1056
30 Holder CND1237
31 Holder CND1352
32 Insulator CNM8245
33 Heat Sink CNR1668
34 Terminal(CN402) VNF1084
35
Holder Unit(DEH-P2550/XM/ES) CXB6681
Holder(DEH-P2550/XN/ES) CNC8659
36 Chassis Unit CXB9528
37 Button(EJECT) CAC7752
38 Screw(M2x2) CBA1176
39 Washer CBF1038
40 Spring CBH2650
41 Spring CBH2651
42 Spring CBH2652
43 Spring CBH2653
44 Spring CBL1512
45 Holder CND1254
46 Cover CNM6854
47 Panel CNS7245
48 Gear CNV5997
49 Pin CNV6486
50 Lighting Conductor CNV6487
51 Arm CNV7400
52 Arm CNV7401
53 Arm CNV7402
54 Arm CNV7403
55 Panel Unit CWM8758
56 Socket(CN1950) CKS3550
57 Connector(CN1951) CKS4462
58 Holder Unit CXB9501
59 Holder Unit CXB9502
60 Damper Unit CXB9503
61 Service Panel Unit CXX1691
62 Screw IMS20P045FZK
63 Detach Grille Assy CXB9604
64 Screw BPZ20P100FZK
65 Button(DISP) CAC7779
66 Button(PAUSE) CAC7780
67 Button(AUDIO) CAC7781
68 Button(OPEN) CAC7782
69 Button(VOLUME) CAC7810
70 Button(SELECT) CAC7812
71 Button(SRC) CAC7785
72 Button(FUNC) CAC7786
73 Button(1-6) CAC7787
74 Button(CLK, EQ) CAC7808
75 Spring CBH2630
76 Cover CNS7269
77 Lighting Conductor CNV7421
78 Rubber CNV7422
79 Keyboard Unit CWM8635
80 LCD(LCD1901) CAW1759
81 Connector(CN1901) CKS4524
82 Holder CNC9757
83 Sheet CNM7647
84 Cushion CNM8092
85 Connector CNV6440
86 Lighting Conductor CNV7495
87 Grille Unit CXB9632
88
Transistor(Q752, 901, 911) 2SD2375
89 IC(IC301) PAL007A
90 IC(IC1902) TSOP4840SB1
91 •••••
92 •••••
93 Choke Coil(L981) CTH1280
- EXTERIOR SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
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DEH-P2550/XM/ES
2.3 CD MECHANISM MODULE
1
1
1
2
1
2
1
2
2
2
1
1
1
1
2
1
3
1
1
1
1
1GEM1024
2GEM1045
3GEM1035
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P2550/XM/ES
9
Mark No. Description Part No. Mark No. Description Part No.
1 CD Core Unit(S10) CWX2708
2 Connector(CN101) CKS4182
3 Connector(CN701) CKS4188
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 Spring CBL1614
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 Screw JFZ20P020FTC
85 Screw(M2x5) EBA1028
86 Screw JFZ20P020FTC
87 Screw JGZ17P022FTC
88 Washer YE15FTC
89 Washer YE20FTC
90 Pickup Unit(Service)(P10) CXX1641
91 Screw IMS26P030FMC
- CD MECHANISM MODULE SECTION PARTS LIST
10
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12
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DEH-P2550/XM/ES
CN701
CN101
Q101
M
LASER
DIODE
MONITOR
DIODE
CLAMP
HOME
X201
12EJ 8EJ DSCSNS
FOCUS ACT.
SPINDLE
MOTOR
M
CARRIAGE
MOTOR
LOADING/
TRACKING ACT.
LD+
MD
FOP
TOP
14
5
4
1
PICKUP UNIT
(SERVICE)(P10)
HOLOGRAM
UNIT
IC 301
BA5996FP
IC 201
UPD63712GC
IC 701
NJM2391DL1-33
3.3V REGULATOR
SERVO
CONTROL,
DSP,
LPF, DAC
ACT,MOTOR
DRIVER
1
VD
VD
3R3V
7
CONT
11
CLMP
5
LOEJ
6
DSCSNS
8
LOUT
TOP
FOP
16
SOP
15
SOM
17
LCOM
18
LCOP
22
1
LOEJ
23
20
LOUT
XTAL
xtal
24
9
CONT
12
FOP
FD, TD, SD, MD
AC, F, E, BD
1
LD
2
PD
42
LIMIT
3
13
TOP
D
CD CORE UNIT(S10)
D
2
16
SO
12
XSI
ASENBO
37
mute
X1
X2
3
PEE
100
41
5
6
4
71
86
85
24
SYSTEM CONTROLLER
IC 601(2/2)
PE5341C
CN401
1
2
BUS-
BUS+
BUS+L
BUS-L
TX
RX
IPPW
swvdd
BU
VDD
BU
CN721
Q751
Q752
TUNER AMP UNIT
16
X601
15
EVST,EVCK,EVDT
TUN L
BUS+L
BUS-L
CD L
96
DPDT
95
KYDT
21
SYSPW
ejectin
8
20
ILMPW
S
DETACH SENSE
90
dsens
A
5
8
1
7
CN101
11
BUZZER
20
15
11
17
16
14
21
IC 101
HA12187FP
IP-BUS DRIVER
1
2
8
6
5
TX
RX
IPPW
BU
Q101
Q102
CDLOEJ
59
CONT
61
DSCSNS
79
XTALEN
63
TUN 3.3V
SYS 8.4V
VDD
64
VDCONT
CLMP
TC7SET08FU
IC 722
24
XSI
66
6
80
VDSENS
VDSENS
ANTENNA
FLPILM
9
Q601
83
AVREF
22
adpw
V
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 1522 16 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
24
23
Rch
Lch
FM/AM TUNER UNIT
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
11
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P2550/XM/ES
11
1
bsens
asens
VDD
BU
92
93
10
FL
11
RL
ILB
SWVDD
ILB
SWDVDD
23
21
3
5
FL-
FL+
RL-
RL+
ACC
IN2-L
3
IN4+L
5
IN4-L
6
IN3-L
4
FLIN
14
RLIN
12
22 4
RESET
POWER AMP
IC 601(1/2)
PE5341C
IC 131
PML003AM
IC 651
BD4834G
IC 301
PAL007A
reset
VDD
Q901
Q931
SYSPW
ELECTRONIC VOLUME/
SOURCE SELECTOR
BU
VDD
STBYMUTE
IC 1901
PD6340A
LCD DRIVER/
KEY CONTROLLER
KEY MATRIX
9
11
KEY DATA
VDD
55
CN1901
Q961
Q962
Q971
KEYBOARD UNIT
X601
2
TUN L
DPDT
3
5
DPDT
KYDT
SYS 8.4V
BU
Q912
Q913
BU
Q301
MUTE
RL
RL
Q351
7
2
11
14
7
2
11
14
CN1950
CN1951
KYDT
4
2
10
8
IC 1902
TSOP4840SB1
REMOTE CONTROL SENSOR
OPT IN
3
1
17
RFM
18
20
DPDT
KTDT
LCD
PANEL UNIT
MUTE
RL
S801
DETACH SENSE
SYSTEM CONTROLLER
25
B.REMOTE
FLFL+
RLRL+
VDD REGULATOR
BACKUP SENSE
ACC SENSE
SYS 8.4V REGULATOR
14
8
6
5
7
16
11
14
8
6
5
7
16
11
15 15
B
C
CN981
Q502
BU
CN351
BACK UP
GND
FUSE
10A
ACC
B.REM
SL
TUNPCE2
TUNPCE1
TUNPDI
TUNPDO
74
32
99
94
98
TUNPCK
97
CE2
CE1
4
BA033FP
IC 921
13
SYS 8.4V
TUN 3.3V
TUNER 3.3V REGULATOR
Q911
DO
DI
CK
Q902
DALMON
10
BU
20
Q501
VLCD
11
810
10
5
BL+B
PRE OUT
CN831
8
8
S1970
EJECT
9
9
BU
5
6
5
6
Q831
Q601
VDD
12
1
234
12
34
F
E
D
C
B
A
DEH-P2550/XM/ES
PE5
R4721
0R0
R9101
0R0
R9403
0R0
B
PANEL
UNIT
C
CN1901
D
CN701
FM/AM TUNER UNIT
IP-BUS
DETACH SENSE SW
EJECT
FM(30%):-30.0dBs
AM(30%):-30.0dBs
IP-BUS:+2.2dBs
CD:0dBs
FM:-31.0dBs
AM:-31.0dBs
IP-BUS:+2.2dBs
CD:0dBs
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-b
A-a
A B
A-a
Large size
A-b
SCH diagram
Guide page
A-a A-b
A-a
A-b
Detailed page
A-a
13
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P2550/XM/ES
REAR
R CH
REAR
L CH
A
TUNER AMP UNIT
BACKUP
GND
RL—
RL+
FL—
FL+
B.REM
ACC
RR—
RR+
FR—
FR+
600µH
Decimal points for resistor
and capacitor fixed values
are expressed as :
2.2 2R2
0.022 R022
←
←
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.
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.
FUSE
10A
CEK1208
>
FM:-5.9dBs
AM:-5.9dBs
IP-BUS:+10.3dBs
CD:+10.1dBs
FM:-6.66dBs
AM:-6.66dBs
IP-BUS:+9.54dBs
CD:+9.34dBs
FM:+30dBs
AM:+20dBs
IP-BUS:+36dBs
CD:+36dBs
A-b
A
14
1
234
12
34
F
E
D
C
B
A
DEH-P2550/XM/ES
A-a
A-b
A-a
A-a
A-b
1
2
R4721
0R0
R9101
0R0
D
CN701
IP-BUS
IP-BUS:+2.2dBs
CD:0dBs
FM:-31.0dBs
AM:-31.0dBs
IP-BUS:+2.2dBs
CD:0dBs
15
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P2550/XM/ES
A-a
A-b
A-a
A-b
A-a
B
3
4
PE5341C
R9403
0R0
B
PANEL
UNIT
C
CN1901
FM/AM TUNER UNIT
DETACH SENSE SW
EJECT
FM(30%):-30.0dBs
AM(30%):-30.0dBs
16
1
234
12
34
F
E
D
C
B
A
DEH-P2550/XM/ES
A-a
A-b
A-b
1
2
REAR
R CH
REAR
L CH
A
TUNER AMP UNIT
FM:-5.9dBs
AM:-5.9dBs
IP-BUS:+10.3dBs
CD:+10.1dBs
FM:-6.66dBs
AM:-6.66dBs
IP-BUS:+9.54dBs
CD:+9.34dBs
17
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P2550/XM/ES
A-a
A-b
A-b
3
4
1C
BACK
G
RL—
RL+
FL—
FL+
B.RE
A
RR—
RR+
FR—
FR+
600µH
Decimal points for resistor
and capacitor fixed values
are expressed as :
2.2 2R2
0.022 R022
←
←
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.
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.
FUSE
10A
CEK1208
>
FM:+30dBs
AM:+20dBs
IP-BUS:+36dBs
CD:+36dBs
18
1
234
12
34
F
E
D
C
B
A
DEH-P2550/XM/ES
3.3 KEYBOARD UNIT
C
C
KEYBOARD UNIT
CAW1759
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