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Service
Manual DEH-1550/XU/ES
ORDER NO.
CRT2970
HIGH POWER CD PLAYER WITH FM/AM TUNER
DEH-1550
DEH-1550B XU/ES
XU/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".
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-ZZU. NOV. 2002 Printed in Japan
1 2 3 4
A 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.
B
C
[ Important symbols for good services ]
D 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
E
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
F prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed
ones should be used.
2 DEH-1550/XU/ES
1 2 3 4
5 6 7 8
CONTENTS A
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
B
3.3 KEYBOARD UNIT ...............................................................................................................................................18
3.4 CD MECHANISM MODULE ...............................................................................................................................20
4. PCB CONNECTION DIAGRAM ................................................................................................................................24
4.1 TUNER AMP UNIT .............................................................................................................................................24
4.2 KEYBOARD UNIT ...............................................................................................................................................28
4.3 CD MECHANISM MODULE ...............................................................................................................................30
5. ELECTRICAL PARTS LIST ........................................................................................................................................32
6. ADJUSTMENT .........................................................................................................................................................35
6.1 CD ADJUSTMENT .............................................................................................................................................35
6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT................................................................36 C
6.3 ERROR MODE ....................................................................................................................................................38
7. GENERAL INFORMATION .......................................................................................................................................39
7.1 DIAGNOSIS ........................................................................................................................................................39
7.1.1 DISASSEMBLY ..............................................................................................................................................39
7.1.2 CONNECTOR FUNCTION DESCRIPTION ....................................................................................................44
7.2 PARTS .................................................................................................................................................................45
7.2.1 IC ....................................................................................................................................................................45
7.2.2 DISPLAY.........................................................................................................................................................52
7.3 OPERATIONAL FLOW CHART...........................................................................................................................53 D
7.4 CLEANING ..........................................................................................................................................................54
8. OPERATIONS ...........................................................................................................................................................55
E
- CD Player Service Precautions
1. Before disassembling the unit, be sure to turn off the 3. After replacing the pickup unit, be sure to check the
power. Unplugging and plugging the connectors dur- grating.(See p.36.)
ing power-on mode may damage the ICs inside the 4. In this product, because the memory capacity of the
unit. microcomputer is insufficient, the test mode is not
2. To protect the pickup unit from electrostatic dis- installed. However grating of the pickup unit can be
charge during serviving, take an appropriate treat- confirmed.
ment(shorting-solder) by referring to "the DISAS-
F
SEMBLY" on page 39.
DEH-1550/XU/ES 3
5 6 7 8
1 2 3 4
A 1. SPECIFICATIONS
B
C
D
E
F
4 DEH-1550/XU/ES
1 2 3 4
5 6 7 8
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
5 A
6
17 3
4
8
2
9
7 11
12
B
16
15
10
1 C
14
13
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. D
- 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.)
- PACKING SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
1 Cord Assy CDE7060 11-2 Installation Manual CRD3669
2 Spring CBH1650 12 Carton(DEH-1550) CHG4991
3 Screw CBA1002 Carton(DEH-1550B) CHG4992
* 4 Polyethylene Bag CEG-127 13 Contain Box(DEH-1550) CHL4991
5 Screw CRZ50P090FTC Contain Box(DEH-1550B) CHL4992 E
6 Screw TRZ50P080FTC 14 Protector CHP2663
* 7 Polyethylene Bag CEG-158 15 Protector CHP2664
8 Handle CNC5395 16 Case Assy CXB3520
9 Bush CNV3930 17 Accessory Assy CEA3439
10 Polyethylene Bag CEG-162
11-1 Owner's Manual CRD3668
- Owner's Manual, Installation Manual
Model Part No. Language
F
DEH-1550/XU/ES CRD3668 English,Spanish,Portuguese(B),
DEH-1550B/XU/ES CRD3669 Arabic,Traditional chinese
DEH-1550/XU/ES 5
5 6 7 8
1 2 3 4
2.2 EXTERIOR
A
B
C
D
E
F
6 DEH-1550/XU/ES
1 2 3 4
5 6 7 8
- EXTERIOR SECTION PARTS LIST A
Mark No. Description Part No. Mark No. Description Part No.
1 Screw BSZ26P060FTC LCD(LCD1801)(DEH-1550B) CAW1734
2 Screw BSZ30P060FTC 46 Connector(CN1801) CKS3580
3 Screw BSZ30P200FTC 47 Holder CNC9617
4 Cord Assy CDE7060 48 Sheet CNM7932
5 Cable CDE7113
49 Lens CNV7060
6 Fuse(10A) CEK1208 50 Lighting Conductor CNV7367
7 CD Mechanism Module(S10)CXK5600 51 Rubber CNV7368
8 Case CNB2793 52 Connector CNV7369
9 Holder CNC8659 53 Grille Unit(DEH-1550) CXB9505 B
10 Earth Plate CNC8915 Grille Unit(DEH-1550) CXB9806
11 Cushion CNM8275 54 Button CAC4836
12 Insulator CNM8059 55 Spring CBH1835
13 Insulator CNM8174 56 Spring CBH2208
14 Panel CNS7239 57 Spring CBH2367
15 Tuner Amp Unit(DEH-1550) CWM8570 58 Bracket CNC6791
Tuner Amp Unit(DEH-1550B) CWM8571
59 Holder CNC8042
16 Screw ASZ26P060FTC 60 Cover CNM6276
17 Screw BPZ26P080FTC 61 Panel CNS7238
18 Screw BSZ26P160FTC 62 Arm CNV4692 C
19 Pin Jack(CN352) CKB1028 63 Arm CNV4728
20 Terminal(CN402) CKF1059
64 Arm CNV5576
21 Plug(CN901) CKM1376 65 Screw IMS20P030FZK
22 Connector(CN831) CKS3581 66 IC(IC302) PAL007A
23 Connector(CN651) CKS3835 67 Screw ISS26P055FTC
24 Antenna Jack(CN401) CKX1056 68 Transistor(Q911,921,991) 2SD1275
25 Holder CND1241
69 Sheet(DEH-1550B) CNM7881
26 Holder CND1328
27 Heat Sink CNR1668
D
28 FM/AM Tuner Unit CWE1646
29 Holder CND1054
30 Chassis Unit CXB9542
31 Detach Grille Assy(DEH-1550) CXB9573
Detach Grille Assy(DEH-1550B) CXB9574
32 Screw BPZ20P100FZK
33 Button(1-6) CAC7739
34 Button(Volume) CAC7740
35 Button(Up) CAC7741
36 Button(Down) CAC7742 E
37 Button(Eject) CAC7743
38 Button(Band) CAC7745
39 Button(Audio) CAC7746
40 Button(SRC-EQ) CAC7749
41 Button(Detach) CAC7753
42 Spring CBH2210
43 Cover CNS7232
44 Keyboard Unit(DEH-1550) CWM8578
Keyboard Unit(DEH-1550B) CWM8579
45 LCD(LCD1801)(DEH-1550) CAW1733 F
DEH-1550/XU/ES 7
5 6 7 8
1 2 3 4
2.3 CD MECHANISM MODULE
A
B
C
D
E
C
F
8 DEH-1550/XU/ES
1 2 3 4
5 6 7 8
- CD MECHANISM MODULE SECTION PARTS LIST
A
Mark No. Description Part No. Mark No. Description Part No.
1 CD Core Unit(S10) CWX2708 48 Holder CNV7202
2 Connector(CN101) CKS4182 49 Arm CNV7203
3 Connector(CN701) CKS4188 50 Gear CNV7207
4 Screw BMZ20P035FTC
5 Screw BSZ20P040FTC 51 Gear CNV7208
52 Gear CNV7209
6 Screw(M2x4) CBA1362 53 Gear CNV7210
7 Screw(M2x3) CBA1511 54 Gear CNV7211
8 Screw(M2x3) CBA1527 55 Gear CNV7212 B
9 Washer CBF1037
10 Washer CBF1038 56 Rack CNV7214
57 Arm CNV7215
11 Washer CBF1060 58 Arm CNV7216
12 Spring CBH2390 59 Guide CNV7217
13 Spring CBH2606 60 Roller CNV7218
14 Spring CBH2607
15 Spring CBH2608 61 Gear CNV7219
62 Arm CNV7221
16 Spring CBH2609 63 Arm CNV7220
17 Spring CBH2610 64 Arm CNV7222
18 Spring CBH2611 65 Damper CNV7313 C
19 Spring CBH2612
20 Spring CBH2613 66 Damper CNV7314
67 Arm CNV7341
21 Spring CBH2614 68 Arm CNV7342
22 Spring CBH2615 69 Guide CNV7360
23 Spring CBH2616 70 Guide CNV7361
24 Spring CBH2617
25 Spring CBH2620 71 Holder CNV7437
72 Arm CNV7444
26 Spring CBH2621 73 Gear CNV7595
27 Spring CBH2641 74 Damper CNV7618 D
28 Spring CBH2642 75 Motor Unit(M1) CXB6007
29 Spring CBH2643
30 Spring CBH2659 76 Chassis Unit CXB8728
77 Screw Unit CXB8729
31 Spring CBH2688 78 Gear Unit CXB8731
* 32 Spring CBL1614 79 Arm Unit CXB8732
33 Shaft CLA3845 80 Arm Unit CXB8735
34 Frame CNC9962
35 Frame CNC9963 81 Arm Unit CXB8852
82 Motor Unit(M2) CXB8933
36 Bracket CNC9966 83 Bracket CNC9985
37 Bracket CNC9967 84 Screw JFZ20P020FTC E
38 Arm CNC9968 85 Screw(M2x5) EBA1028
39 Arm CNC9973
40 Lever CNC9983 86 Screw JFZ20P020FTC
87 Screw JGZ17P022FTC
41 Lever CNC9984 88 Washer YE15FTC
42 Sheet CNM8134 89 Washer YE20FTC
43 Collar CNV6906 90 Pickup Unit(Service)(P10) CXX1641
44 Guide CNV6925
45 Arm CNV7198 91 Screw IMS26P030FMC
46 Rack CNV7199
F
47 Holder CNV7201
DEH-1550/XU/ES 9
5 6 7 8
1 2 3 4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
A A TUNER AMP UNIT
VDD
TUNPCK
TUNPDO
TUNPDI
6 13 5 10 9 8 11 14
CE2
ROM_VDD
SL
DI
CK
CE1
LDET
DO
IC 3 EEPROM IC 5 CE2 55
5.0V 5V 3.3V
CE1 56
11
OSC LPF
12
B ANTENNA CN402 AM ANT FMRF
13
1 ATT
61
76
IC 2
IC 1 2.5V
FM ANT
3 3.3V
ATT Lch
23
FMRF MIXER, IF AMP DET, FM MPX
RF adj
ANT adj
T51 CF52
CF51
IC 4
VDD_3.3
3.3V 3.3V 2.5V 2.5V
VCC
C
4 17
TUN3V 2
IN2_L
VCC
3
IN3_L
PICKUP UNIT
(SERVICE)(P10) C CD CORE UNIT(S10)
D
CN101 Q101 CN701 CN651
LASER
DIODE LD+ 1 20 LOUT LOUT
14 LD LOUT 8 14
MD 2 23
5 PD xtal
AC, F, E, BD X201
HOLOGRAM
24
UNIT SERVO XTAL
CONTROL,
D FOCUS ACT.
FOP
TOP
1
FOP
TOP
DSP, SYS
MONITOR TRACKING ACT. 4 LPF, DAC
DIODE CONTR
IC 201
12
FOP
FD, TD, SD, MD
UPD63712GC IC 60
13
TOP 42 PE5
LIMIT
SPINDLE
ACT,MOTOR
MOTOR M DRIVER
HOME
16
SOP
15
SOM
17
LOADING/ CARRIAGE LCOM LOEJ
MOTOR M 18
LCOP LOEJ
22 LOEJ 29 LOEJ
5 17
9 CONT CONT 28
CONT 7 15 CONT
IC 301
BA5996FP
DSCSNS DSCSNS 65
6 16 DSCSNS
CLMP CLAMSW 27
11 11 CLAMSW
Q991 VDD
CLAMP VD 1 21 VD 1 5
E 12EJ 8EJ DSCSNS
VD
2 20 B.U
4
16
XSI
3.3V REGULATOR
IC652
3R3V 3 IC 701 1 TC7SET08FU
Q992
NJM2391DL1-33
VDCONT 41
VDCONT
F
10 DEH-1550/XU/ES
1 2 3 4
5 6 7 8
A
CN352
CE2 55
TUNPCE2
REAR L CH
Q 352
CE1 56 TUNPCE1
11
TUNPDI
12
TUNPDO
13
TUNPCK
B
Q453
61
LDET
76
SL
VDD REGULATOR
Q911
VDD B.U
VCK
VDT
SYS 8V REGULATOR
VST Q921 Q922
VCC B.U
CN901
SYSTEM
CONTROLLER SYSPW
BACKUP
B.U 16
IC 601 (1/2) Q923
FUSE
PE5330A
10A
C
16
BACK UP
15 15
GND
2
IN2_L
VST/ VCK/ VDT POWER AMP
ELECTRONIC VOLUME 23 FL-
7 7
FL-
10 14 21 FL+
3
IN3_L Frontout_L FL IC 302 5 5 FL+
IC 151 11 12 RL PAL007A 3 RL-
8 8
Rearout_L
PML003AM 5 RL+
RL-
6 6
RL+
MUTE STBY
22 4 25
Q452 MUTE
SYSPW
Q931
TUN 3V asens ACC 14 14
1 ACC
TUN3V
4 IC 901 bsens D
SYSTEM BA033SFP 4
VCC
B.U
64
CONTROLLER ASENS
IC 601(2/2) BSENS
63
PE5330A
29 LOEJ
28 43
CONT SYSPW B.REM
11 11
B.REM
65
DSCSNS
27
CLAMSW 48
MUTE
16
XSI
B KEYBOARD UNIT E
CN831 CN1801
41
VDCONT KEY CONTROLLER
LCD DRIVER
8 KYDT 20
KYDT 3 3 KYDT
9 DPDT
DPDT 4 4 18
DPDT LCD
RESET
60 1 IC 961
603 2
VDD
RESET
S-80834CNY
S-80834ANY
VDD
SW5V 56
5 5 VDD
10 VLCD
21
SWVDD Q801
IC 1801
PD6340A
F
KEY MATRIX
DEH-1550/XU/ES 11
5 6 7 8
1 2 3 4
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 A-b
Large size
SCH diagram
A-a
C CN701
A-a A-b Guide page
A-a A-b Detailed page
B
C
FM/AM TUNER UNIT
D
E
B
CN1801
F
A
12 DEH-1550/XU/ES
1 2 3 4
5 6 7 8
A-b A
A TUNER AMP UNIT
REAR
L CH
REAR
R CH
B
C
CEK1136
>
600