DEH-P2550 [ETC]
MULTI-CO CONTROL HIGH POWER CD PLAYER WITH FM/AM TUNER; MULTI -CO控制大功率CD播放器， FM / AM调谐器
| 型号： | DEH-P2550 |
| 厂家： | 
ETC |
| 描述： | MULTI-CO CONTROL HIGH POWER CD PLAYER WITH FM/AM TUNER |
| 文件： | 总59页 (文件大小：4164K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Service
ORDER NO.
DEH-P2550/XM/ES
CRT2983
MULTI-CD CONTROL HIGH POWER CD PLAYER WITH FM/AM TUNER
DEH-P2550XM/ES, XN/ES
- This service manual should be used together with the following manual(s):
Model No.
CX-3026
Order No.
CRT2944
Mech. Module Remarks
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-ZZA. OCT. 2002 Printed in Japan
1
2
3
4
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.
A
B
C
D
E
F
[ 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.
2
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
CONTENTS
A
B
C
D
E
F
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
- CD Player Service Precautions
3. After replacing the pickup unit, be sure to check the
grating.(See p.38.)
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
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
1. SPECIFICATIONS
A
B
C
D
E
F
Backup current
5 mA or less
4
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
A
B
C
D
E
F
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.)
- PACKING SECTION PARTS LIST
Mark No. Description
Part No.
Mark No. Description
14 Bush
Part No.
1 Cord Assy
2 Accessory Assy
3 Spring
CDE7060
CEA3439
CBH1650
CEA3437
CRD3690
CNV3930
CEG1173
CEX1065
15 Polyethylene Bag
16 Battery
*
4 Screw Assy
5-1 Owner’s Manual
17 Carton(DEH-P2550/XM/ES) CHG4961
Carton(DEH-P2550/XN/ES) CHG4975
5-2 Owner’s Manual
5-3 Installation Manual
6 Screw
CRD3691
CRD3692
CBA1002
CEG-127
CRZ50P090FTC
18 Contain Box(DEH-P2550/XM/ES) CHL4975
Contain Box(DEH-P2550/XN/ES) CHL4961
19 Protector
20 Protector
CHP2663
CHP2664
*
*
7 Polyethylene Bag
8 Screw
9 Screw
10 Polyethylene Bag
11 Handle
12 Case Assy
13 Remote Control Unit
TRZ50P080FTC
CEG-158
CNC5395
CXB3520
)
CXC1265
- Owner's Manual, Installation Manual
Model
DEH-P2550/XM/ES
DEH-P2550/XN/ES
Part No.
CRD3690
CRD3691
CRD3692
Language
English, Spanish, Portuguese(B)
Traditional Chinese, Arabic
English, Spanish, Portuguese(B), Traditional Chinese, Arabic
5
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
2.2 EXTERIOR
A
B
C
D
E
F
6
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
- EXTERIOR SECTION PARTS LIST
A
B
C
D
E
F
Mark No. Description
Part No.
Mark No. Description
Part No.
1 Remote Control Unit
CXC1265
46 Cover
47 Panel
48 Gear
49 Pin
CNM6854
CNS7245
CNV5997
CNV6486
CNV6487
2 Cover
3 Screw
4 Screw
5 Screw
CNS7068
ISS26P055FTC
BMZ30P040FZK
BSZ26P060FTC
50 Lighting Conductor
6 Screw
7 Screw
8 Cord Assy
9 Cable
BSZ30P060FTC
BSZ30P200FTC
CDE7060
51 Arm
52 Arm
53 Arm
54 Arm
CNV7400
CNV7401
CNV7402
CNV7403
CWM8758
CDE7188
10 CD Mechanism Module(S10) CXK5600
55 Panel Unit
11 Case
CNB2793
CNC8915
CNM4870
CNM7935
CNM8174
56 Socket(CN1950)
57 Connector(CN1951)
58 Holder Unit
59 Holder Unit
60 Damper Unit
CKS3550
CKS4462
CXB9501
CXB9502
CXB9503
12 Earth Plate
13 Cushion
14 Insulator
15 Insulator
16 Panel
CNS6935
61 Service Panel Unit
62 Screw
63 Detach Grille Assy
64 Screw
CXX1691
IMS20P045FZK
CXB9604
BPZ20P100FZK
CAC7779
17 Tuner Amp Unit
18 Screw
19 Screw
CWM8619
ASZ26P060FTC
BPZ26P080FTC
BSZ26P160FTC
20 Screw
65 Button(DISP)
21 Fuse(10A)
22 FM/AM Tuner Unit
23 Holder
24 Pin Jack(CN351)
25 Plug(CN981)
CEK1208
CWE1646
CND1054
CKB1059
CKM1376
66 Button(PAUSE)
67 Button(AUDIO)
68 Button(OPEN)
69 Button(VOLUME)
70 Button(SELECT)
CAC7780
CAC7781
CAC7782
CAC7810
CAC7812
26 Connector(CN101)
27 Plug(CN831)
28 Connector(CN721)
29 Antenna Jack(CN401)
30 Holder
CKS3408
CKS3537
CKS3835
CKX1056
CND1237
71 Button(SRC)
72 Button(FUNC)
73 Button(1-6)
74 Button(CLK, EQ)
75 Spring
CAC7785
CAC7786
CAC7787
CAC7808
CBH2630
31 Holder
32 Insulator
33 Heat Sink
34 Terminal(CN402)
CND1352
CNM8245
CNR1668
VNF1084
76 Cover
77 Lighting Conductor
78 Rubber
79 Keyboard Unit
80 LCD(LCD1901)
CNS7269
CNV7421
CNV7422
CWM8635
CAW1759
35 Holder Unit(DEH-P2550/XM/ES) CXB6681
Holder(DEH-P2550/XN/ES) CNC8659
81 Connector(CN1901)
82 Holder
83 Sheet
84 Cushion
85 Connector
CKS4524
CNC9757
CNM7647
CNM8092
CNV6440
36 Chassis Unit
37 Button(EJECT)
38 Screw(M2x2)
39 Washer
CXB9528
CAC7752
CBA1176
CBF1038
CBH2650
40 Spring
86 Lighting Conductor
87 Grille Unit
88 Transistor(Q752, 901, 911) 2SD2375
89 IC(IC301)
90 IC(IC1902)
CNV7495
CXB9632
41 Spring
42 Spring
43 Spring
44 Spring
45 Holder
CBH2651
CBH2652
CBH2653
CBL1512
CND1254
PAL007A
TSOP4840SB1
91 •••••
92 •••••
93 Choke Coil(L981)
CTH1280
7
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
2.3 CD MECHANISM MODULE
A
B
C
D
E
F
1
1
1
2
1
2
1
2
1
1
2
1
1
3
1
2
2
1
1
1
1
1GEM1024
2GEM1045
3GEM1035
8
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
- CD MECHANISM MODULE SECTION PARTS LIST
A
B
C
D
E
F
Mark No. Description
1 CD Core Unit(S10)
Part No.
Mark No. Description
Part No.
CWX2708
46 Rack
47 Holder
48 Holder
49 Arm
CNV7199
CNV7201
CNV7202
CNV7203
CNV7207
2 Connector(CN101)
3 Connector(CN701)
4 Screw
CKS4182
CKS4188
BMZ20P035FTC
BSZ20P040FTC
5 Screw
50 Gear
6 Screw(M2x4)
7 Screw(M2x3)
8 Screw(M2x3)
9 Washer
CBA1362
CBA1511
CBA1527
CBF1037
CBF1038
51 Gear
52 Gear
53 Gear
54 Gear
55 Gear
CNV7208
CNV7209
CNV7210
CNV7211
CNV7212
10 Washer
11 Washer
12 Spring
13 Spring
14 Spring
15 Spring
CBF1060
CBH2390
CBH2606
CBH2607
CBH2608
56 Rack
57 Arm
58 Arm
59 Guide
60 Roller
CNV7214
CNV7215
CNV7216
CNV7217
CNV7218
16 Spring
17 Spring
18 Spring
19 Spring
20 Spring
CBH2609
CBH2610
CBH2611
CBH2612
CBH2613
61 Gear
62 Arm
63 Arm
64 Arm
65 Damper
CNV7219
CNV7221
CNV7220
CNV7222
CNV7313
21 Spring
22 Spring
23 Spring
24 Spring
25 Spring
CBH2614
CBH2615
CBH2616
CBH2617
CBH2620
66 Damper
67 Arm
68 Arm
69 Guide
70 Guide
CNV7314
CNV7341
CNV7342
CNV7360
CNV7361
26 Spring
27 Spring
28 Spring
29 Spring
30 Spring
CBH2621
CBH2641
CBH2642
CBH2643
CBH2659
71 Holder
72 Arm
73 Gear
74 Damper
75 Motor Unit(M1)
CNV7437
CNV7444
CNV7595
CNV7618
CXB6007
31 Spring
32 Spring
33 Shaft
34 Frame
35 Frame
CBH2688
CBL1614
CLA3845
CNC9962
CNC9963
76 Chassis Unit
77 Screw Unit
78 Gear Unit
79 Arm Unit
80 Arm Unit
CXB8728
CXB8729
CXB8731
CXB8732
CXB8735
*
36 Bracket
37 Bracket
38 Arm
39 Arm
40 Lever
CNC9966
CNC9967
CNC9968
CNC9973
CNC9983
81 Arm Unit
82 Motor Unit(M2)
83 Bracket
84 Screw
85 Screw(M2x5)
CXB8852
CXB8933
CNC9985
JFZ20P020FTC
EBA1028
41 Lever
42 Sheet
43 Collar
44 Guide
45 Arm
CNC9984
CNM8134
CNV6906
CNV6925
CNV7198
86 Screw
87 Screw
88 Washer
89 Washer
JFZ20P020FTC
JGZ17P022FTC
YE15FTC
YE20FTC
90 Pickup Unit(Service)(P10) CXX1641
91 Screw
IMS26P030FMC
DEH-P2550/XM/ES
9
5
6
7
8
1
2
3
4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
A
B
C
D
E
F
TUNER AMP UNIT
A
VDD
7
6
13
5
10
9
8
11
14
18 19 20 21
FM/AM TUNER UNIT
IC 5
IC 3 EEPROM
5.0V
←
5V 3.3V
OSC
LPF
CN401
1
ANTENNA
AM ANT
FMRF
1
3
ATT
Rch
2
24
23
IC 2
2.5V
IC 1
3.3V
FM ANT
ATT
Lch
FMRF
MIXER, IF AMP
DET, FM MPX
RF adj
ANT adj
T51
CF52
CF51
IC 4
←
3.3V 2.5V
2.5V
3.3V
2
12
15 22
16
4
17
TUN L
BUS+L
3
5
6
TUN 3.3V
SYS 8.4V
BUS+L
BUS-L
BUS-L
CN101
CD L
4
7
11
5
1
8
EVST,EVCK,EVDT
BUZZER
100
PEE
IP-BUS DRIVER
BUS-
86
85
TX
RX
5
1
2
PICKUP UNIT
(SERVICE)(P10)
TX
RX
IC 101
HA12187FP
37
6
mute
CD CORE UNIT(S10)
D
BUS+
8
24
IPPW
CN101
IPPW
CN701
LOUT
LASER
DIODE
Q101
CN721
LD+
MD
1
20
8
14
14
LD
PD
LOUT
xtal
21
2
23
24
SYSPW
X1
5
Q101
Q102
X201
AC, F, E, BD
BU
71
16
15
HOLOGRAM
UNIT
SERVO XTAL
CONTROL,
DSP,
X601
Q601
SYSTEM CONTROLLER
FOP
TOP
FOP
TOP
1
4
X2
FOCUS ACT.
TRACKING ACT.
ASENBO
IC 601(2/2)
PE5341C
LPF, DAC
MONITOR
DIODE
IC 722
83
22
AVREF
V
12
XSI
66
59
61
79
2
4
SO
IC 201
UPD63712GC
16
6
XSI
FD, TD, SD, MD
42
12
13
FOP
TOP
CDLOEJ
CONT
adpw
TC7SET08FU
LIMIT
ACT,MOTOR
DRIVER
SPINDLE
M
9
8
DSCSNS
XTALEN
VDSENS
MOTOR
FLPILM
63
80
CLMP
HOME
16
15
17
18
SOP
ejectin
SOM
LCOM
LOADING/ CARRIAGE
MOTOR
M
LOEJ
22
9
LCOP
LOEJ
5
7
17
15
CONT
CONT
BU
64 95 90 96 41 20
IC 301
BA5996FP
DSCSNS
CLMP
6
16
11
11
VDD
VDSENS
Q752
Q751
VD
CLAMP
1
2
20
21
VD
BU
12EJ
8EJ
DSCSNS
3.3V REGULATOR
1
3
3R3V
IC 701
S
NJM2391DL1-33
DETACH SENSE
10
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
A
B
C
D
E
F
RESET
1
2
IC 651
BD4834G
VDD
PRE OUT
RL
CN351
4
11
RL
RL
Q351
CE2
CE1
DO
DI
32
99
94
98
97
TUNPCE2
TUNPCE1
TUNPDI
TUNPDO
TUNPCK
CK
VDD REGULATOR
Q901
74
VDD
SL
Q902
SYSTEM CONTROLLER
IC 601(1/2)
10
DALMON
PE5341C
CN981
BACKUP SENSE
Q931
BU
FUSE
10A
93
92
bsens
asens
16
14
16
14
BACK UP
ACC
ACC
ACC SENSE
15
15
GND
FL-
BU
ELECTRONIC VOLUME/
SOURCE SELECTOR
IN2-L
20
POWER AMP
TUN L
+L
3
5
6
23
FL-
7
5
8
6
7
5
8
6
IN4+L
21
3
FL+
RL-
14
12
IC 301
-L
IC 131
FL+
RL-
RL+
10
11
IN4-L
FL
FLIN
PAL007A
PML003AM
RLIN
MUTE
22
RL
5
RL+
B.REMOTE
4
IN3-L
STBY
4
25
11
11
B.REM
MUTE
Q502
VST,EVCK,EVDT
BU
SYS 8.Q49V11REGULATOR
Q912
SYS 8.4V
BU
MUTE
Q301
Q913
Q501
SYSPW
TUNER 3.3V REGULATOR
IC 921
X601
Q601
3
1
TUN 3.3V
SYS 8.4V
BA033FP
VDD
CN831
5
6
5
6
BU
Q831
8
9
8
9
PANEL UNIT
B
KEYBOARD UNIT
C
S1970
EJECT
CN1901
Q961
ILB
ILB
7
9
8
7
4
5
BU
BL+B
10
10
Q962
Q971
SWVDD
DPDT
SWDVDD
DPDT
2
11
3
2
2
VDD
REMOTE CONTROL SENSOR
3
1
IC 1902
OPT IN
11
11
10
TSOP4840SB1
11
55
17
S801
DETACH SENSE
KEY MATRIX
LCD
KEY DATA
18
DPDT
LCD DRIVER/
KYDT
KYDT
KEY CONTROLLER
14
5
14
8
IC 1901
PD6340A
20
KTDT
CN1951
CN1950
11
DEH-P2550/XM/ES
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
B
C
D
E
F
A-a
Large size
SCH diagram
A-a
A-b
A-a
A-b
Guide page
A-a
A-b
Detailed page
FM:-31.0dBs
AM:-31.0dBs
IP-BUS:+2.2dBs
CD:0dBs
R4721
0R0
CD:0dBs
CN701
D
IP-BUS:+2.2dBs
IP-BUS
R9101
0R0
PE5
FM(30%):-30.0dBs
AM(30%):-30.0dBs
R9403
0R0
EJECT
C
CN1901
PANEL
UNIT
B
12
DEH-P2550/XM/ES
A B
3
4
1
2
6
7
8
5
A
B
C
D
E
F
A-b
TUNER AMP UNIT
A
FM:-6.66dBs
AM:-6.66dBs
IP-BUS:+9.54dBs
CD:+9.34dBs
FM:-5.9dBs
AM:-5.9dBs
IP-BUS:+10.3dBs
CD:+10.1dBs
REAR
CH
R
REAR
CH
L
5341C
>
FUSE
10A
600µH
CEK1208
BACKUP
GND
ACC
B.REM
RL—
FL—
RL+
FL+
RR—
FR—
RR+
FR+
FM:+30dBs
AM:+20dBs
IP-BUS:+36dBs
CD:+36dBs
NOTE :
Symbol indicates a resistor.
Decimal points for resistor
No differentiation is made between chip resistors and
discrete resistors.
and capacitor fixed values
are expressed as :
Symbol indicates a capacitor.
No differentiation is made between chip capacitors and
discrete capacitors.
←
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.
13
DEH-P2550/XM/ES
A
5
6
7
8
1
2
3
4
1
2
A-b
A
B
C
D
E
F
A-a
14
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
3
4
A-b
A
B
C
D
E
F
DETACH SENSE SW
FM/AM TUNER UNIT
A-a B
15
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
A
B
C
D
E
F
1
2
A-b
16
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
A
B
C
D
E
F
3
4
A-b
17
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
3.3 KEYBOARD UNIT
A
B
C
D
E
F
KEYBOARD UNIT
C
C
18
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
A
B
C
D
E
F
C
19
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
3.4 CD MECHANISM MODULE
A
B
C
D
E
F
Pickup Unit(Service)(P10)
#
F
T
T
F
T
T
F
F
F
T
T
F
F
T
T
F
F
F
T
T
!
0
1
9
MOTOR DRIVER
@
S
T
F
5
SPINDLE MOTOR
S
7
C
M1 CXB6007
S
8
LOADING/CARRIAGE
MOTOR
M2 CXB8933
C
C
6
3
F
F
T
T
3.3V
REGULATOR
D
20
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
A
B
C
D
E
F
SIGNAL LINE
F
FOCUS SERVO LINE
TRACKING SERVO LINE
CARRIAGE SERVO LINE
SPINDLE SERVO LINE
T
C
S
SWITCHES:
CD CORE UNIT
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 switch position.
RF AMP / SERVO / DSP
DAC / LPF
CD CORE UNIT (S10)
D
9
4
CN721
A
2
@
S
5
C
3
$
%
D
21
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
- Waveforms
Note : 1. The encircled numbers denote measuring points in the circuit diagram.
2. Reference voltage REFO1(1.65V)
A
B
C
D
E
F
1 DSCSNS 5V/div
2 CLCONT 5V/div
500ms/div 1 DSCSNS 5V/div
2 CLCONT 5V/div
500ms/div 5 SIN
6 CIN
1V/div
500mV/div
500mV/div
2s/div
3 LOEJ
4 VD
5V/div
10V/div
3 LOEJ
4 VD
5V/div
10V/div
7 TIN
When setting up after loading a 12cm CD-DA
disc
When loading a 12cm CD
When loading an 8cm CD
Ref.:
GND
Ref.:
GND
Ref.:
REFO
Mode:
Normal
Mode:
Mode:
Norma
Norma
8 FIN
200mV/div 500ms/div 0 TE
500mV/div 200ms/div ! FE
500mV/div 20ms/div
500mV/div
500mV/div
9 RFOK
5 SIN
2V/div
2V/div
! FE
500mV/div
8 FIN
0 TE
7 TIN
500mV/div
When setting up "Source On"(12cm CD-DA)
When setting up "Source On"
During "Play"(CD-DA)
Ref.:
REFO
Ref.:
Ref.:
REFO
REFO
Mode:
Normal
Mode:
Mode:
Norma
Norma
@ MDX
5 SIN
500mV/div 5ms/div
1V/div
@ MDX
5 SIN
500mV/div 5µs/div
1V/div
# RFAGC
500mV/div 0.5µs/div
Spindle waveform during "Play"
Spindle waveform during "Play"(Magnified)
RF eye pattern
Ref.:
REFO
Ref.:
Ref.:
REFO
REFO
Mode:
Normal
Mode:
Mode:
Norma
Normal
8 FIN
! FE
500mV/div 200ms/div 0 TE
500mV/div # RFAGC
500mV/div 2ms/div
500mV/div
# RFAGC
0 TE
7 TIN
1V/div
500mV/div
500mV/div
500µs/div
Focus Search
When "Tracking Open"
1 Track Jump
Ref.:
REFO
Ref.:
Ref.:
REFO
REFO
Mode:
TEST
Mode:
TEST
Mode:
TEST
22
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
A
B
C
D
E
F
# RFAGC
0 TE
7 TIN
1V/div
500mV/div
500mV/div
500ms/div # RFAGC
1V/div
500mV/div
500mV/div
5ms/div
# RFAGC
7 TIN
0 TE
1V/div
1V/div
1V/div
1V/div
500µs/div
0 TE
7 TIN
8 FIN
32 Track Jump
100(32x3) Track Jump
When reproducing black dots(1mm)
Ref.:
REFO
Ref.:
REFO
Ref.:
REFO
Mode:
TEST
Mode:
TEST
Mode:
Normal
# RFAGC
0 TE
6 CIN
5 SIN
1V/div
1V/div
500mV/div
2V/div
500µs/div # RFAGC
1V/div
1V/div
500mV/div
2V/div
5ms/div
# RFAGC
0 TE
1V/div
1V/div
500mV/div
2V/div
500µs/div
0 TE
6 CIN
5 SIN
6 CIN
5 SIN
During inside/outside search
When reproducing scratch(1mm)
When reproducing fingerprint(65µm)
(outer circumference → inner circumference)
Ref.:
REFO
Ref.:
REFO
Ref.:
REFO
Mode:
Norma
Mode:
Norma
Mode:
Normal
$ LOUT
% ROUT
1V/div
1V/div
200µs/div 1 DSCSNS 5V/div
2 CLCONT 5V/div
3 LOEJ 5V/div
200ms/div 1 DSCSNS 5V/div
2 CLCONT 5V/div
3 LOEJ 5V/div
200ms/div
Analog Audio
When "Eject"(12cm CD)
When "Eject"(8cm CD)
Ref.:
AGND
Ref.:
GND
Ref.:
GND
Mode:
Norma
Mode:
Norma
Mode:
Normal
23
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
4. PCB CONNECTION DIAGRAM
4.1 TUNER AMP UNIT
A
B
C
D
E
F
NOTE FOR PCB DIAGRAMS
TUNER AMP UNIT
A
1.The parts mounted on this PCB
include all necessary parts for
several destination.
For further information for
respective destinations, be sure
to check with the schematic dia-
gram.
CORD ASSY
2.Viewpoint of PCB diagrams
WIRED
REMOTE
Capacitor
Connector
IP-BUS
SIDE A
SIDE B
Chip Part
P.C.Board
L981
R9101
R4721
CN701
D
DETACH SENSE
A
24
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
A
B
C
D
E
F
SIDE A
IC,Q
PRE OUT
ANTENNA
CN1950
B
FRONT
A
25
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
A
B
C
D
E
F
TUNER AMP UNIT
A
IC,Q
A
26
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
A
B
C
D
E
F
SIDE B
A
27
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
4.2 PANEL UNIT
A
B
C
D
E
F
SIDE A
PANEL UNIT
B
CN1901
C
EJECT
SIDE B
PANEL UNIT
B
CN831
A
B
28
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
4.3 KEYBOARD UNIT
SIDE A
SIDE B
KEYBOARD UNIT
KEYBOARD UNIT
C
C
A
B
C
D
E
F
IC,Q
IC,Q
↓
CN1951
B
↓
C
29
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
4.4 CD MECHANISM MODULE
SIDE A
CD CORE UNIT(S10)
D
A
B
C
D
E
F
M2
LOADING
/CARRIAGE MOTOR
M1
SPINDLE MOTOR
A
CN721
HOME
PICKUP UNIT
(SERVICE)(P10)
D
30
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
SIDE B
CD CORE UNIT(S10)
D
A
B
C
D
E
F
8EJ
12EJ
DSCSNS
CLAMP
D
31
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
5. ELECTRICAL PARTS LIST
A
B
C
D
E
F
NOTES:
- Parts whose parts numbers are omitted are subject to being not supplied.
- The part numbers shown below indicate chip components.
Chip Resistor
RS1/_S___J,RS1/__S___J
Chip Capacitor (except for CQS.....)
CKS....., CCS....., CSZS.....
=====Circuit Symbol and No.===Part Name
Part No.
-------------------------
=====Circuit Symbol and No.===Part Name
--- ------ ------------------------------------------
Part No.
-------------------------
--- ------
------------------------------------------
L
405
601
971
981
601
Inductor
LAU2R2K
LAU2R2K
LAU2R2K
CTH1280
CSS1402
Unit Number : CWM8619
L
L
L
X
Inductor
A
Unit Name
: Tuner Amp Unit
Inductor
Choke Coil 600µH
Radiator 12.58291MHz
MISCELLANEOUS
IC
IC
IC
IC
IC
101
131
301
601
651
IC
IC
IC
IC
IC
HA12187FP
PML003AM
PAL007A
S
831
Switch(DETACH SENSE)
Buzzer
CSN1039
CPV1062
CEK1208
CWE1646
SP 601
Fuse 10A
PE5341C
FM/AM Tuner Unit
BD4834G
RESISTORS
IC
IC
Q
Q
Q
722
921
101
102
301
IC
TC7SET08FU
BA033FP
2SA1037K
DTC124EK
DTC124EK
IC
R
R
R
R
R
101
102
103
104
105
RS1/16S150J
RS1/16S470J
RS1/16S101J
RS1/16S101J
RS1/16S181J
Transistor
Transistor
Transistor
Q
Q
Q
Q
Q
351
501
502
601
751
Transistor
Transistor
Transistor
Transistor
Transistor
IMH3A
2SC2412K
IMD2A
R
R
R
R
R
106
107
108
109
110
RS1/16S181J
RS1/16S223J
RS1/16S223J
RS1/16S102J
RS1/16S102J
DTA114EK
IMD2A
Q
Q
Q
Q
Q
752
831
901
902
911
Transistor
Transistor
Transistor
Transistor
Transistor
2SD2375
DTC143EK
2SD2375
IMD2A
R
R
R
R
R
111
112
113
114
131
RS1/16S222J
RS1/16S103J
RS1/16S332J
RS1/16S562J
RS1/16S0R0J
2SD2375
Q
Q
Q
Q
Q
912
913
931
961
962
Transistor
Transistor
Transistor
Transistor
Transistor
2SB1238
DTC114EK
IMX1
2SB1238
DTC114EK
R
R
R
R
R
132
133
137
138
139
RS1/16S0R0J
RAB4C102J
RS1/16S101J
RS1/16S101J
RS1/16S101J
Q
D
D
D
D
971
501
502
571
572
Transistor
Diode
2SA1036K
DAN202U
R
R
R
R
R
140
141
142
301
302
RS1/16S101J
RS1/16S0R0J
RS1/16S0R0J
RS1/16S153J
RS1/16S103J
Diode
HZS9L(A2)
MPG06G-6415G50
MPG06G-6415G50
Diode
Diode
D
D
D
D
D
751
831
832
833
834
Diode
Diode
Diode
Diode
Diode
HZS9L(B1)
DAN202U
DAN202U
DAP202U
DAP202U
R
R
R
R
R
303
304
351
352
359
RS1/16S103J
RS1/16S331J
RS1/16S821J
RS1/16S821J
RS1/16S223J
D
D
D
D
D
901
902
911
921
922
Diode
Diode
Diode
Diode
Diode
HZS6L(B1)
MPG06G-6415G50
HZS9L(B3)
R
R
R
R
R
360
401
403
404
405
RS1/16S223J
RS1/16S681J
RS1/16S122J
RS1/16S681J
RS1/16S681J
1SR154-400
1SR154-400
D
D
D
D
D
923
931
932
981
982
Diode
Diode
Diode
Diode
Diode
1SR154-400
HZS7L(C3)
R
R
R
R
R
406
501
502
504
601
RS1/16S681J
RS1/16S103J
RS1/16S473J
RS1/16S102J
RS1/16S102J
HZS7L(A1)
MPG06G-6415G50
MPG06G-6415G50
ZNR 401
Arrester
DSP-201M
LCTA2R2J2520
LAU4R7K
L
L
L
L
131
401
402
404
Inductor
R
R
R
R
R
603
605
606
607
617
RS1/16S473J
RS1/16S102J
RS1/16S473J
RS1/16S104J
RS1/16S104J
Ferri-Inductor
Inductor
Inductor
LAU1R0K
LAU1R0K
32
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
=====Circuit Symbol and No.===Part Name
Part No.
=====Circuit Symbol and No.===Part Name
Part No.
A
B
C
D
E
F
--- ------
------------------------------------------
-------------------------
--- ------
------------------------------------------
-------------------------
R
R
R
R
R
619
620
621
622
623
RS1/16S1602D
RS1/16S473J
RS1/16S473J
RS1/16S473J
RS1/16S473J
R
R
R
R
R
965
971
972
973
981
RS1/16S182J
RS1/16S153J
RS1/16S153J
RS1/16S222J
RD1/4PU102J
R
R
R
R
R
624
625
626
627
628
RS1/16S473J
RS1/16S473J
RS1/16S681J
RS1/16S681J
RS1/16S681J
R
R
R
4721
9101
9403
RD1/4PU0R0J
RD1/4PU0R0J
RD1/4PU0R0J
CAPACITORS
R
R
R
R
R
640
651
652
713
716
RS1/16S0R0J
RS1/16S102J
RS1/16S183J
RS1/16S104J
RS1/16S221J
C
C
C
C
C
101
131
132
133
134
CKSRYB104K25
CEJQ1R0M50
CEJQ1R0M50
CKSRYB104K25
CKSRYB104K25
R
R
R
R
R
724
727
728
729
730
RS1/16S104J
RS1/16S0R0J
RS1/16S0R0J
RS1/16S221J
RS1/16S221J
C
C
C
C
C
135
136
137
138
139
CEJQ1R0M50
CEJQ1R0M50
CEJQ1R0M50
CEJQ1R0M50
CEJQ470M16
R
R
R
R
R
731
732
733
735
736
RS1/16S221J
RS1/16S221J
RS1/16S102J
RS1/16S221J
RS1/16S221J
C
C
C
C
C
140
143
145
146
147
CKSRYB104K25
CEJQ100M16
CKSRYB105K10
CKSRYB105K10
CKSRYB153K50
R
R
R
R
R
737
740
741
742
749
RS1/16S221J
RS1/16S102J
RS1/16S221J
RS1/16S221J
RS1/16S0R0J
C
C
C
C
C
148
301
302
303
304
CKSRYB153K50
CKSRYB474K10
CKSRYB474K10
CKSRYB474K10
CKSRYB474K10
R
R
R
R
R
751
752
753
754
757
RD1/4PU821J
RD1/4PU221J
RS1/16S222J
RS1/16S472J
RD1/4PU0R0J
C
C
C
C
C
305
306
307
308
309
CKSRYB474K10
CKSRYB474K10
CKSRYB474K10
CKSRYB474K10
CEHAR330M10
R
R
R
R
R
831
832
833
834
835
RS1/16S222J
RS1/16S222J
RS1/16S222J
RS1/16S222J
RS1/16S473J
C
C
C
C
C
310
311
312
313
314
3300µF/16V
CCH1486
CKSRYB104K25
CEHAR100M16
CKSQYB225K10
CKSQYB225K10
R
R
R
R
R
836
837
838
839
840
RS1/16S473J
RD1/4PU391J
RS1/16S102J
RS1/16S102J
RS1/16S102J
C
C
C
C
C
351
352
401
402
403
CEJQ100M16
CEJQ100M16
CKSRYB103K50
CEJQ470M6R3
CKSRYB103K50
R
R
R
R
R
841
845
901
902
903
RS1/16S102J
RS1/16S102J
RD1/4PU221J
RS1/16S223J
RS1/16S821J
C
C
C
C
C
404
405
407
602
603
CKSRYB103K50
CEJQ101M16
CKSYB475K10
CKSRYB105K10
CCSRCH200J50
R
R
R
R
R
904
905
911
914
915
RS1/16S821J
RS1/16S0R0J
RS1/16S223J
RS1/16S152J
RD1/4PU152J
C
C
C
C
C
604
605
606
608
609
CCSRCH200J50
CEJQ4R7M35
CKSRYB104K25
CCSRCH101J50
CCSRCH470J50
R
R
R
R
R
916
921
931
932
933
RS1/16S223J
RD1/4PU1R8J
RS1/16S104J
RS1/16S473J
RS1/16S103J
C
C
C
C
C
611
652
729
751
752
CKSRYB104K25
CKSRYB105K10
CKSRYB473K50
CKSRYB224K10
CKSRYB102K50
R
R
R
R
R
934
935
961
962
963
RS1/16S473J
RS1/16S472J
RS1/16S223J
RS1/16S182J
RD1/4PU1R0J
C
C
C
C
C
753
901
902
903
904
CEJQ101M16
CEJQ470M10
CKSRYB103K50
CKSRYB472K50
CCH1331
470µF/16V
33
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
=====Circuit Symbol and No.===Part Name
Part No.
=====Circuit Symbol and No.===Part Name
Part No.
A
B
C
D
E
F
--- ------
------------------------------------------
-------------------------
--- ------
------------------------------------------
-------------------------
C
C
C
C
C
911
912
913
921
922
CEJQ221M10
CKSRYB103K50
CEJQ101M16
CEJQ220M10
CKSRYB103K50
Unit Number : CWM8758
B
Unit Name
: Panel Unit
MISCELLANEOUS
D
S
1970
1970
LED
Push Switch(EJECT)
CL220PGC
CSG1112
C
C
C
923
931
961
CKSYB475K10
CKSRYB104K25
CKSRYB473K50
RESISTORS
Unit Number : CWM8635
R
R
R
1970
1971
1972
RS1/16S101J
RS1/16S101J
RS1/16S0R0J
C
Unit Name
: Keyboard Unit
MISCELLANEOUS
CAPACITORS
IC 1901
IC 1902
IC
PD6340A
C
1970
CKSRYB104K16
IC
TSOP4840SB1
NSSW440-9159
NSSW440-9159
SML-310PT
D
D
D
1801
1802
1803
LED
LED
LED
Unit Number : CWX2708
D
Unit Name
: CD Core Unit(S10)
D
D
D
D
D
1804
1805
1806
1807
1808
LED
LED
LED
LED
LED
SML-310PT
SML-310PT
SML-310PT
SML-310PT
SML-310PT
MISCELLANEOUS
IC
IC
IC
Q
201
301
701
101
101
IC
UPD63712GC
BA5996FP
IC
IC
NJM2391DL1-33
2SB1132
Transistor
Diode
D
D
D
D
D
1809
1810
1811
1812
1813
LED
LED
LED
LED
LED
SML-310PT
SML-310PT
SML-310PT
SML-310PT
SML-310PT
D
1SS355
D
X
S
S
S
701
201
901
902
903
Diode
1SR154-400
CSS1603
CSN1051
CSN1051
CSN1052
Ceramic Resonator 16.934MHz
Spring Switch(HOME)
Spring Switch(CLAMP)
Spring Switch(DSCSNS)
D
D
D
X
1814
1901
1902
1901
LED
SML-310PT
DAN202U
DAP202U
CSS1422
CEL1651
Diode
Diode
S
S
904
905
Spring Switch(12EJ)
Spring Switch(8EJ)
CSN1051
CSN1051
Ceramic Resonator 4.97MHz
Lamp 14V 40mA
IL 1801
RESISTORS
IL 1802
LCD1901
Lamp 14V 40mA
LCD
CEL1651
CAW1759
R
R
R
R
R
101
102
103
104
105
RS1/10S1R5J
RS1/10S1R5J
RS1/10S1R5J
RS1/10S1R5J
RS1/10S1R5J
RESISTORS
R
R
R
R
R
1801
1802
1803
1804
1805
RS1/16S151J
RS1/16S151J
RS1/16S151J
RS1/16S181J
RS1/16S151J
R
R
R
R
R
201
202
203
204
205
RS1/16S102J
RS1/16S1002D
RS1/16S1002D
RS1/16S1002D
RS1/16S1002D
R
R
R
R
R
1806
1807
1808
1809
1810
RS1/16S181J
RS1/16S181J
RS1/16S151J
RS1/16S181J
RS1/16S181J
R
R
R
R
R
206
207
208
209
214
RS1/16S1002D
RS1/16S1002D
RS1/16S1002D
RS1/16S1002D
RS1/16S103J
R
R
R
R
R
1811
1812
1813
1814
1815
RS1/16S151J
RS1/16S181J
RS1/16S181J
RS1/16S151J
RS1/16S181J
R
R
R
R
R
215
216
217
218
234
RS1/16S393J
RS1/16S122J
RS1/16S562J
RS1/16S472J
RS1/16S0R0J
R
R
R
R
R
1901
1902
1904
1905
1906
RS1/16S121J
RS1/16S2R2J
RS1/16S222J
RS1/16S222J
RS1/16S473J
R
R
R
R
R
235
236
301
302
303
RS1/16S103J
RS1/16S103J
RS1/16S183J
RS1/16S822J
RS1/16S183J
CAPACITORS
C
C
C
C
1801
1802
1901
1902
CKSRYB104K16
CKSRYB104K16
CKSRYB224K10
CSZS4R7M16
R
R
R
R
R
304
305
306
307
308
RS1/16S822J
RS1/16S183J
RS1/16S183J
RS1/16S183J
RS1/16S183J
34
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
=====Circuit Symbol and No.===Part Name
Part No.
A
B
C
D
E
F
--- ------
------------------------------------------
-------------------------
R
R
R
R
R
501
503
505
506
507
RS1/16S102J
RS1/16S102J
RS1/16S102J
RS1/16S221J
RS1/16S221J
R
R
R
R
R
508
509
601
602
603
RS1/16S221J
RS1/16S221J
RS1/16S101J
RS1/16S101J
RS1/16S0R0J
R
R
R
901
902
903
RS1/16S104J
RS1/16S473J
RS1/16S273J
CAPACITORS
C
C
C
C
C
101
102
103
104
106
CKSRYB104K16
CKSRYB104K16
CCH1504
CCH1506
CCSRCH101J50
100µF/16V
47µF/6.3V
C
C
C
C
C
108
109
201
202
203
CKSRYB224K16
CKSRYB224K16
CKSRYB104K16
CKSRYB471K50
CKSRYB104K16
C
C
C
C
C
205
206
207
208
209
22µF/6.3V
CCH1507
CKSRYB103K25
CKSRYB104K16
CCH1505
100µF/6.3V
CKSRYB104K16
C
C
C
C
C
210
211
212
213
214
CKSRYB104K16
CKSRYB104K16
CKSRYB104K16
CKSRYB332K50
CKSRYB473K25
C
C
C
C
C
215
216
217
218
219
CKSRYB104K16
CKSRYB103K25
CCSRCH560J50
CCSRCH5R0C50
CKSRYB104K16
C
C
C
C
C
220
221
222
223
224
CKSRYB104K16
CKSRYB104K16
CKSRYB103K25
CCSRCH680J50
CCSRCH470J50
C
C
C
C
C
225
231
232
301
302
CKSRYB682K50
CKSRYB102K50
CKSRYB102K50
CCH1504
100µF/16V
CCSRCH221J50
C
C
C
C
C
303
304
305
306
501
CCSRCH221J50
CKSRYB472K50
CKSRYB103K25
CKSRYB104K16
CKSRYB103K25
C
C
C
C
C
502
702
703
704
705
CKSRYB103K25
CCH1504
CKSRYB224K16
CKSRYB104K16
CCH1470
100µF/16V
10µF/6.3V
Miscellaneous Parts List
Pickup Unit(Service)(P10)
Motor Unit(SPINDLE)
Motor Unit(LOADING/CARRIAGE) CXB8933
CXX1641
CXB6007
M
M
1
2
35
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
6. ADJUSTMENT
6.1 CD ADJUSTMENT
1) Cautions on adjustments
• In this product the single voltage (3.3V) is used for the
regulator. The reference voltage is the REFO1 (1.65V)
instead of the GND.
If you should mistakenly short the REFO1 with the GND
during adjustment, accurate voltage will not be obtained,
and the servo’s misoperation will apply excessive shock
to the pickup. To avoid such problems:
a. Do not mix up the REFO1 with the GND when
connecting the (-) probe of measuring instruments.
Especially on an oscilloscope, avoid connecting the (-)
probe for CH1 to the GND.
A
B
C
D
E
F
2) Test mode
This mode is used to adjust the CD mechanism module.
• To enter the test mode.
While pressing the 4 and 6 keys at the same time, reset.
• To exit from the test mode.
Turn off the ACC and back up.
Notes:
a. During ejection, do not press any other keys than the
EJECT key until the loaded disc is ejected.
b. If you have pressed the (→) key or (←) key during focus
search, turn off the power immediately to protect the
actuator from damage caused by the lens stuck.
c. For the TR jump modes except 100TR, the track jump
operation will continue even if the key is released.
d. For the CRG move and 100TR jump modes, the tracking
loop will be closed at the same time when the key is
released.
b. In many cases, measuring instruments have the same
potential as that for the (-) probe. Be sure to set the
measuring instruments to the floating state.
c. If you have mistakenly connected the REFO1 to the GND,
turn off the regulator or the power immediately.
• Before mounting and removing filters or leads for
adjustment, be sure to turn off the regulator.
e. When the power is turned off and on, the jump mode
is reset to the single TR (91), the RF amp gain is set to 0dB,
and the auto-adjustment values are reset to the default
settings.
• For stable circuit operation, keep the mechanism
operating for about one minute or more after the
regulator is turned on.
• In the test mode, any software protections will not
work. Avoid applying any mechanical or electrical
shock to the mechanism during adjustment.
• The RFI and RFO signals with a wide frequency range
are easy to oscillate. When observing the signals,
insert a resistor of 1k ohms in series.
• The load and eject operation is not guarantied with the
mechanism upside down. If the mechanism is blocked
due to mistaken eject operation, reset the product or
turn off and on the ACC to restore it.
36
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
- Flow Chart
A
B
C
D
E
F
[4]+[6]+Reset
Test Mode In
[KEY]
Contents
Display
[CD]or[SOURCE]
Source On
TRK
MIN
[BAND]
[3]
Power On
(T.Offset is adjusted)
TRK00MIN00SEC00
Power On
(T.Offset is not adjusted)
TRK99MIN99SEC99
[→]
[←]
[2]
[BAND]
[3]
[6]
[1]
*3
Tracking Servo
Close
Focus Close /
S curve check
TRK91MIN91SEC91
Automatic adjustment
display switching
*8
*8
Focus Mode
switching
TRK0xMIN0xSEC0x
*2
CRG+
CRG-
Power Off
TRK
MIN
SEC
TRK00 MIN00 SEC00
TRK00MIN00SEC00
TRK00MIN00SEC00
TRK?? MIN?? SEC??
or TRK99MIN99SEC99
or TRK99MIN99SEC99
or TRK99MIN99SEC99
[BAND]
[1]
[6]
[3]
[→]
[←]
[2]
T.Close and F,T AGC
and RF AGC
T.Close and
Applicable servomechanism
RF AGC /
RF AGC coefficient display
T.Balance adjustment
T.Balance coefficient display
CRG+
CRG-
Power Off
Applicable servomechanism
TRK
MIN
SEC
TRKxxMINxxSECxx
TRKxxMINxxSECxx
TRK??MIN??SEC??
TRK8xMIN8xSEC8x
TRK8xMIN8xSEC8x
TRK?? MIN?? SEC??
or TRK9xMIN9xSEC9x
or TRK9xMIN9xSEC9x
[BAND]
[1]
[3]
[6]
[→]
*4
[←]
*4
[2]
*7
*5
F,T,RF AGC /
F.Bias display switching
F,T AGC /F.Bias
RF AGC
TRKxxMINxxSECxx
CRG/TR Jump value
switching
Tracking Open
Power Off
CRG/TR Jump +
CRG/TR Jump -
TRK?? MIN?? SEC??
TRKxxMINxxSECxx
TRK xxMINxxSEC xx
TRK xxMIN xxSEC xx
TRK8xMIN8xSEC8x
TRK
MIN
SEC
or TRK 9xMIN9xSEC 9x
*6
[BAND]
[2]
Tracking Open
Power Off
TRK
MIN
SEC
TRK8xMIN8xSEC8x
or TRK9xMIN9xSEC9x
*1)
TYP
→
-12dB
Operation
Test Mode
TRK MIN SEC
TRK 12 MIN 12 SEC 12
[Key]
[BAND] Power On / Off
*2) Focus Close
→
S.Curve
→
F EQ measurement setting
TRK 00 MIN 00 SEC 00 TRK 01 MIN 01 SEC 01 TRK 02 MIN 02 SEC 02
(TRK 99 MIN 99 SEC 99)
CRG + / TR Jump +
(Direction of the external surface)
[→]
*3) F.Offset Display → RF.Offset Display → T.Offset Display
CRG - / TR Jump -
(Direction of the internal surface)
[←]
[1]
[2]
[3]
-
*4) 1TR/32TR/100TR
CLS and AGC and Applicable servomechanism /
AGC, AGC display switching
*5) Single TR → 32TR → 100TR → CRG Move
RF Gain switching / Offset adjustment display /
T.Balance adjustment / T.Open
9x(8x) : 91(81)
92(82)
93(83)
94(84)
Close, S.Curve /
Rough Servo and RF AGC / F, T, RF AGC
*6) Only at the time of CRG Move or 100TR Jump
*7) TRK/MIN/SEC → F.AGC → T.AGC Gain → F.bias → RF AGC
SPDL 1X / 2X switching
(Double-speed compatibility only)
*8) CRG motor voltage = 2[V]
-
Gop measurement
Forcus Mode switching / Tracking Close
/ CRG, TR Jump switching
[6]
37
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT
A
B
C
D
E
F
• Note :
The grating angle of the PU unit cannot be adjusted after the PU unit is changed. The PU unit in the CD mechanism
module is adjusted on the production line to match the CD mechanism module and is thus the best adjusted PU
unit for the CD mechanism module. Changing the PU unit is thus best considered as a last resort. However, if the
PU unit must be changed, the grating should be checked using the procedure below.
• Purpose :
To check that the grating is within an acceptable range when the PU unit is changed.
• Symptoms of Mal-adjustment :
If the grating is off by a large amount symptoms such as being unable to close tracking, being unable to perform
track search operations, or taking a long time for track searching.
• Method :
• Measuring Equipment
• Measuring Points
• Disc
• Oscilloscope, Two L.P.F.
• E, F, REFO1
• ABEX TCD-782
• TEST MODE
• Mode
CD CORE UNIT(S10)
L.P.F.
Xch
Ych
E
100kΩ
390pF
Oscilloscope
VREF
F
100kΩ
390pF
VREF
L.P.F.
• Checking Procedure
1. In test mode, load the disc and switch the 3V regulator on.
2. Using the → and ← buttons, move the PU unit to the innermost track.
3. Press key 3 to close focus, the display should read "91". Press key 2 to implement the tracking balance
adjustment the display should now read "81". Press key 3. The display will change, returning to "81" on the
fourth press.
4. As shown in the diagram above, monitor the LPF outputs using the oscilloscope and check that the phase
difference is within 75° . Refer to the photographs supplied to determine the phase angle.
5. If the phase difference is determined to be greater than 75° try changing the PU unit to see if there is any
improvement. If, after trying this a number of times, the grating angle does not become less than 75° then the
mechanism should be judged to be at fault.
• Note
Because of eccentricity in the disc and a slight misalignment of the clamping center the grating waveform may be
seen to "wobble" ( the phase difference changes as the disc rotates). The angle specified above indicates the
average angle.
• Hint
Reloading the disc changes the clamp position and may decrease the "wobble".
38
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
Grating waveform
Ech → Xch 20mV/div, AC
Fch → Ych 20mV/div, AC
A
B
C
D
E
F
0°
30°
60°
90°
45°
75°
39
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
6.3 ERROR MODE
- Error Messages
A
B
C
D
E
F
If a CD is not operative or stopped during operation due to an error, the error mode is turned on and cause(s) of
the error is indicated with a corresponding number. This arrangement is intended at reducing nonsense calls from
the users and also for facilitating trouble analysis and repair work in servicing.
(1) Basic Indication Method
1) When SERRORM is selected for the CSMOD (CD mode area for the system), error codes are written to DMIN
(minutes display area) and DSEC (seconds display area). The same data is written to DMIN and DSEC. DTNO
remains in blank as before.
2) Head unit display examples
Depending on display capability of LCD used, display will vary as shown below. xx contains the error number.
8-digit display
6-digit display
4-digit display
ERROR–xx
ERR–xx
E–xx
(2) Error Code List
Code Class
Displayed error code Description of the code and potential cause(s)
Electricity Carriage Home NG CRG can't be moved to inner diameter.
10
SERVO LSI Com-
munication Error
CRG can't be moved from inner diameter.
→ Failure on home switch or CRG move mechanism.
Communication error between microcomputer and SERVO LSI.
Focusing not available.
11
12
Electricity Focus Servo NG
→ Stains on rear side of disc or excessive vibrations on REWRITABLE.
Spindle not locked. Sub-code is strange (not readable).
→ Failure on spindle, stains or damages on disc, or excessive vibrations.
A disc not containing CD-R data is found.
Turned over disc are found, though rarely.
CD signal error.
Electricity Spindle Lock NG
Subcode NG
17
30
44
50
A0
Electricity Setup NG
AGC protection doesn't work. Focus can be easily lost.
→ Damages or stains on disc, or excessive vibrations on REWRITABLE.
Failed to reach target address.
Electricity Search Time Out
Electricity ALL Skip
→ CRG tracking error or damages on disc.
Skip setting for all track.
(CD-R/RW)
Mechanism CD On Mech Error
Mechanical error during CD ON.
→ Defective loading motor, mechanical lock and mechanical sensor.
Power (VD) is ground faulted.
System
Power Supply NG
→ Failure on SW transistor or power supply (failure on connector).
Remarks: Mechanical errors are not displayed (because a CD is turned off in these errors).
Unreadable TOC does not constitute an error. An intended operation continues in this case.
Upper digits of an error code are subdivided as shown below:
1x: Setup relevant errors, 3x: Search relevant errors, Ax: Other errors.
40
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
7. GENERAL INFORMATION
7.1 DIAGNOSIS
A
B
C
D
E
F
7.1.1 DISASSEMBLY
- Removing the Case (not shown)
1. Remove the Case.
- Removing the CD Mechanism Module (Fig.1)
CD Mechanism Module
1
Remove the four screws.
Disconnect the connector and then remove the
CD Mechanism Module.
1
1
1
- Removing the Grille Assy (Fig.1)
2
Remove the two screws and then remove
the Grille Assy.
1
2
2
Grille Assy
Fig.1
- Removing the Tuner Amp Unit (Fig.2)
2
1
2
3
4
Remove the screw.
2
2
Remove the three screws.
Straight the tabs at three locations
indicated.
4
Remove the screw and then remove
the Tuner Amp Unit.
1
3
3
3
Tuner Amp Unit
Fig.2
41
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
- How to hold the Mechanical Unit
1. Hold the top and bottom frame.
2. Do not squeeze top frame's front portion too tight,
because it is fragile.
A
B
C
D
E
F
Do not squeeze.
- Removing the Upper and Lower Frames
1. With a disc clamped, remove the four springs (A),
the two springs (B), the two springs (C), and the
four screws.
2. To remove the upper frame, open it on the fulcrum
A.
Upper Frame
A
A
C
A
3. While lifting the carriage mechanism, remove the
three dampers.
4. With the frames removed, insert the connectors
coming from the main unit and eject the disc.
Caution: Before installing the carriage mechanism in
the frames, be sure to apply some alcohol to the
dampers and set the mechanism to the clamp mode.
A
Carriage Mechanism
C
B
A
Damper
Lower Frame
Damper
B
Damper
- Removing the Pickup Unit
1. Set the mechanism to the clamp mode.
2. Remove the lead wires from the inner holder.
3. Remove the two washers, styling holder, change
arm, and pickup lock arm.
4. While releasing from the hook of the inner holder,
lift the end of the feed screw.
Caution: In assembling, move the planet gear to the
load/eject position before setting the feed screw
in the inner holder.
Washer
Pickup Lock Arm
Change
Arm
Styling Holder
Feed Screw
Inner Holder
Planet Gear
42
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
7.1.2 CONNECTOR FUNCTION DESCRIPTION
A
B
C
D
E
F
10A
43
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
7.2 PARTS
7.2.1 IC
- Pin Functions(PE5341C)
A
B
C
D
E
F
Pin No.
1
Pin Name
swvdd
NC
I/O
O
Format Function and Operation
C
Grille : Chip enable output
Not used
2-4
5
6
7
8
TESTIN
LCDPW
TELIN
ejectin
FLPILM
DALMON
reset
XT2
I
O
I
I
I
Test program mode input
LCD back light power supply control output
Telephone mute input
Eject sense input
C
9
Flap illumination input
For consumption low-current
Reset input
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29-31
32
33
34
35
36
37
38, 39
40
41
42
43
44
45
46
47-57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
I/O
I
C
Not used
Clock connection pin
GND
Crystal oscillator connection pin
Crystal oscillator connection pin
Regulator operation specification signal
Capacitor for regulator connect pin
Power supply
XT1
VSS
X2
X1
I
I
I
REGOFF
REGC
VDD
ILMPW
SYSPW
adpw
NC
O
O
O
Illumination power supply control output
System power control output
A/D converter power supply control output
Not used
C
C
IPPW
NC
ROMDATA
ROMCLK
ROMCS
NC
O
C
Power supply control output for IP BUS interface IC
Not used
O
O
O
C
C
ROM correction data output
ROM correction clock output
ROM correction chip select output
Not used
tunpce@
VST
VCK
VDT
O
O
O
O
O
O
PLL chip enable output2
E.VOL : Strobe output
E.VOL : Clock output
E.VOL : Data output
ANTPW
MUTE
NC
VSS
VDD
Antenna power output
System mute output
C
Not used
GND
Power supply
RDS57K
drst
rdslk
RDT
DORAON
NC
I
O
I
O
O
57kHz count pulse input
RDS : Decoder reset output
RDS : Decoder clock input
RDS : Decoder data input
TUNER : 3V power supply
Not used
C
C
C
C
STRKEY2
CDLOEJ
CLCONT
CONT
PCL
I
O
I
O
O
I
O
O
I
O
O
O
O
O
O
Steering remote controller input
CD : Load Moter Load/Eject output
CD : Driver input switch output
CD : Servo driver power supply control output
Clock adjustment
C
C
C
CLAMPSW
VDCONT
xsck(TSCK)
XSI(TSI)
XSO(TSO)
XAO
Clamp SW input
C
CD : VD power control output
CD LSI clock output
CD LSI data input
C
C
C
CD LSI data output
CD LSI command/data control output
CD : LSI reset control output
CD LSI strobe output
xrst
xstb
ASENBO
EMUTE
TEST
IP-BUS : Slave power supply control output
E.VOL : Mute control output
GND
SL
STRKEY1
I
I
C
C
TUNER : Signal level input
Steering remote controller input
44
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
Pin No.
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Pin Name
MODELIN
CSENS
NC
DSCSNS
VDSENS
TEMP
AVDD
AVREF
AVSS
RX
TX
NMI
ldet
rck
dsens
PACK
I/O
I
I
Format Function and Operation
Model select input
A
B
C
D
E
F
Flap close sense input
Not used
CD : Disc insert sense input
I
I
I
CD : VD voltage sense input
CD : Temperature sense input
A/D converter power supply terminal
A/D converter reference voltage terminal
GND
IP-BUS : Data input
IP-BUS : Data output
GND
PLL lock sense input
RDS : Clock input
Grille detach sense input
PACK input
I
O
I
I
I
I
I
I
I
I
O
O
O
O
O
asens
bsens
TUNPDI
KYDT
ACC power sense input
Back up power sense input
PLL IC data input
Grille data input
DPDT
C
Grille data output
TUNPCK
TUNPDO
TUNPCE
PEE
PLL clock output
C
C
C
PLL data output
PLL chip enable output
Beep tone output
* PE5341C
IC's marked by * are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
30
51
Format
C
Meaning
CMOS
BD4834G
80
1
5
4
Vref
1
2
3
45
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
PAL007A
A
B
C
D
E
F
Protector;
Over voltage
TAB
P-GND2
OUT2-
STBY
Reference
amp_vcc
Stand-by
Circuit
Offset
Detection
Protector;
Thermal
OUT2+
VCC
OUT1-
P-GND1
OUT1+
SVR
Offset
Detection
IN1
IN2
Protector;
Short circuit
S-GND
IN4
IN3
AC-GND
OUT3+
P-GND3
OUT3-
VCC
Offset
Detection
OUT4+
MUTE
OUT4-
P-GND4
SWITCH
Offset
Detection
Protector;
Over current limit
Mute circuit
46
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
- Pin Functions (PD6340A)
A
B
C
D
E
F
Pin No.
1-5
Pin Name
SEG4-0
COM3-0
VLCD
KST3-0
KDT0,1
REM
I/O
O
O
Function and Operation
LCD segment output
LCD common output
LCD drive power supply
Key strobe output
Key data input (analogue input)
Remote control reception input
Display data input
Not used
Key data output
GND
Crystal oscillator connection pin
Crystal oscillator connection pin
GND
Key data input
Not used
Key strobe output
Not used
LCD segment output
Power supply
6-9
10
11-14
15,16
17
O
I
I
18
19
DPDT
NC
I
20
21
22
KYDT
MODA
X0
O
23
X1
24
VSS
25,26
27
KDT2,3
NC
I
28
KST4
NC
SEG35-13
VDD
O
O
O
29-32
33-55
56
57-64
SEG12-5
LCD segment output
*PD6340A
32
49
17
64
TSOP4840SB1
Control
Circuit
Input
PIN
Band
Pass
Demodu-
lator
AGC
2
3
1
OUT
GND
VCC
47
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
- Pin Functions(UPD63712GC)
A
B
C
D
E
F
Pin No.
1
Pin Name
LD
PD
I/O
Function and Operation
Output of LD
Input of PD
Assignment of pickup polarity
Power supply for the analog system
Ground for digital circuits
Output of RFOK
Interruption signals to the external microcomputer
Input of reset
Command/Parameter discrimination signal input
Data strobe signal input
Serial data clock input
Serial data output
Serial data input
Power supply for digital circuits
Power supply for DAC
Output of audio for the right channel
GND for DAC
Connected to the capacitor for band gap
GND for DAC
Output of audio for the left channel
Power supply for DAC
Power supply for the crystal oscillator
Connected to the crystal oscillator
Connected to the crystal oscillator
Ground for the crystal oscillator
Power supply for digital circuits
Information on error correction
Information on error correction
Information on error correction
Information on error correction
Information on error correction
Output of LOCK
O
I
2
3
PN
I
4
5
6
7
AVDD
DGND
RFOK
INTQ
rst
O
O
I
8
9
A0
I
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
stb
sck
SO
SI
I
I
O
I
DVDD
DAVDD
ROUT
DAGND
REGC
DAGND
LOUT
DAVDD
XVDD
xtal
XTAL
XGND
DVDD
C1D1
C1D2
C2D1
C2D2
C2D3
LOCK
MIRR
HOLD
PLCK
C16M
DGND
TX
EMPH
FLAG
DVDD
LIMIT
xtalen
DGND
DIN
DOUT
SCKIN
SCKO
LRCKIN
LRCK
DVDD
FD+
O
O
O
I
O
O
O
O
O
O
O
O
O
O
MIRR signal
HOLD signal
Output of PLCK
Output of 16.9344MHz
Ground for digital circuits
DAI output
Pre-emphasis information output
The flag for which output sound data cannot be corrected is outputted
Power supply for digital circuits
Signal is inputted when the register can be read
Permission to oscillate
O
O
O
I
I
Ground for digital circuits
Input of audio data
Output of audio data
Clock input for audio data
I
O
I
O
I
Clock output for audio data
Input of LRCK for audio data
Output LRCK for audio data
Power supply for digital circuits
Output of focus drive PWM
O
O
O
O
O
O
O
O
O
FD-
TD+
TD-
SD+
SD-
MD+
MD-
DGND
Output of focus drive PWM
Output of tracking drive PWM
Output of tracking drive PWM
Output of thread drive PWM
Output of thread drive PWM
Output of spindle drive PWM
Output of spindle drive PWM
Ground for digital circuits
48
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
Pin No.
61
62-66
67
Pin Name
TESTEN
TEST4-0
ADGND
EFM
ASY
ADVDD
RFI
EQ2, 1
RF-
RF2-
AGCO
AGCI
RFO
ATEST
C3T
I/O
I
I
Function and Operation
Connected to GND
Connected to GND
GND for DAC
Output of EFM signals
Input of asymmetry
Power supply for DAC
Input of RF
A
B
C
D
E
F
68
69
70
71
O
I
I
72, 73
74
Equalizer 2, 1
I
I
O
I
O
O
Reversal input of RF
Reversal input of RF2
Output of RF
Input of AGC
Output of RF
Analog tests
Connection to the capacitor for detecting 3T
Ground for the analog system
Input of A
Input of C
Input of B
Input of D
Input of F
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
AGND
A
C
B
D
I
I
I
I
I
I
I
F
E
Input of E
VREFIN
AVDD
REFOUT
REFC
FE-
FEO
ADCIN
TE-
TEO
TE2
TEC
AGND
PWMSW
Photo-detector input bias voltage
Power supply for the analog system
Output of reference voltage
Connected to the capacitor for output of REFOUT
Reversal input of FE
Output of FE
TEST
Reversal input of TE
Output of TE
O
I
O
I
I
O
O
I
TE2
TEC
99
100
Ground for the analog system
Servo PWM mode switching
I
* UPD63712GC
25
51
75
1
49
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
- Pin Functions(BA5996FP)
A
B
C
D
E
F
Pin No.
1
Pin Name
VR
Function and Operation
Input pin for reference voltage
2
3
4
5
6
7
8
OPIN2(+)
OPIN2(-)
OPOUT2
OPIN1(+)
OPIN1(-)
OPOUT1
GND
Input pin for non-inverting input for CH2 preamplifier
Input pin for inverting input for CH2 preamplifier
Output pin for CH2 preamplifier
Input pin for non-inverting input for CH1 preamplifier
Input pin for inverting input from CH1 preamplifier
Output pin for CH1 preamplifier
Ground pin
Mute control pin
Power supply pin for CH1, CH2, and CH3 at "Power" stage
Driver CH1 - Negative output
Driver CH2 - Positive output
Driver CH2 - Negative output
Driver CH2 - Positive output
Driver CH2 - Positive output
Driver CH2 - Negative output
Driver CH4 - Positive output
Driver CH4 - Negative output
Power supply pin for CH4 at "Power" stage
Ground pin
9
MUTE
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
POWVCC1
VO1(-)
VO1(+)
VO2(-)
VO2(+)
VO3(+)
VO3(-)
VO4(+)
VO4(-)
POWVCC2
GND
CNT
Control pin
Loading input
LDIN
OPOUTSL
OPINLSL
OPOUT3
OPIN3(-)
OPIN3(+)
PREVCC
Output pin for preamplifier for thread
Input pin for preamplifier for thread
CH3 preamplifier output pin
Input pin for inverting input for CH3 preamplifier
Input pin for non-inverting input for CH3 preamplifier
PreVcc
BA5996FP
NJM2391DL1-33
14
1
15
28
VREF
Over current
protector
Thermal
Shutdown
2
1
3
IN
OUT
GND
50
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
- FM/AM Tuner Unit
A
B
C
D
E
F
7
6
13
5
10
9
8
11
14
18 19 20 21
IC 5
IC 3 EEPROM
5.0V
←
5V 3.3V
OSC
LPF
AM ANT
FMRF
1
3
ATT
Rch
Lch
24
23
IC 2
2.5V
IC 1
3.3V
FM ANT
ATT
FMRF
MIXER, IF AMP
DET, FM MPX
RF adj
ANT adj
T51
CF52
CF51
IC 4
←
3.3V 2.5V
2.5V
3.3V
2
12
15 22
16
4
17
No. Symbol
1 AMANT
I/O Explain
I
AM antenna input AM antenna input high impedance AMANT pin is connected with
an all antenna by way of 4.7µH. (LAU type inductor) A series circuit
including an inductor and a resistor is connected with RF ground for
the countermeasure against the ham of power transmission line.
2 RFGND
3 FMANT
4 VCC
5 SL
6 CE2
7 WC
RF ground
Ground of antenna block
Input of FM antenna 75Ω Surge absorber(DSP-201M-S00B) is necessary.
The power supply for analog block. D.C 8.4V ± 0.3V
Output of FM/AM signals level
Chip enable for EEPROM ”Low” active
You can write EEPROM, when EEPROM write control is “Low”.
Ordinary non connection
Chip enable for AF•RF ”High” active
Clock
Data input
Not used
Ground of oscillator block
Power supply for EEPROM pin 13 is connected with a power supply of
micro computer.
Data output
Ground of digital block
I
FM antenna input
power supply
signal level
chip enable-2
write control
O
I
I
8 CE1
9 CK
10 DI
11 NC
12 OSCGND
13 ROM_VDD
I
I
I
chip enable-1
clock
data in
non connection
osc ground
power supply
14 DO
O
data out
15 DGND
16 NC
17 VDD_3.3
18 NC
19 NC
20 NC
digital ground
non connection
power supply
non connection
non connection
non connection
non connection
audio ground
L channel output
R channel output
Not used
The power supply for digital block. 3.3V ± 0.2V
Not used
Not used
Not used
Not used
Ground of audio block
FM stereo “L-ch” signal output or AM audio output
FM stereo “R-ch” signal output or AM audio output
21 NC
22 AUDIOGND
23 L ch
24 R ch
O
O
51
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
7.2.2 DISPLAY
- LCD(CAW1759)
A
B
C
D
E
F
S E G 0
S E G 1
S E G 2
S E G 3
S E G 4
S E G 5
S E G 6
S E G 7
S E G 8
S E G 9
S E G 1 0
S E G 1 1
S E G 1 2
S E G 1 3
S E G 1 4
S E G 1 5
S E G 1 6
S E G 1 7
S E G 1 8
S E G 1 9
S E G 2 0
S E G 2 1
S E G 2 2
S E G 2 3
S E G 2 4
S E G 2 5
S E G 2 6
S E G 2 7
S E G 2 8
S E G 2 9
S E G 3 0
S E G 3 1
S E G 3 2
S E G 3 3
S E G 3 4
S E G 3 5
C O M 0
C O M 1
C O M 2
C O M 3
S E G 3 6
S E G 3 7
S E G 3 8
S E G 3 9
C O M 0
C O M 1
C O M 2
C O M 3
52
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
7.3 OPERATIONAL FLOW CHART
A
B
C
D
E
F
Power ON
VDD=5V
Pin 41
bsens
Pin 93
bsens=L
asens
Pin 92
asens=L
dsens
Pin 90
dsens=L
ASENBO←H
Pin 71
CSENS
Pin 77
<
<
- CSENS 2V, 3V CSENS
=
=
Last source returns.
CD loading functions are available.
Keys except for EJECT key are not available.
2V < CSENS < 3V
Starts
communication
with Grille
microcomputer.
300ms
swvdd←H
Pin 1
300ms
In case of the above signal, the communication
with Grille microcomputer may fail.
If the time interval is not 300msec, the oscillator
may be defective.
Source keys
operative
Source ON
SYSPW←H
Pin 21
Completes power-on operation.
(After that, proceed to each source operation)
53
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
7.4 CLEANING
Before shipping out the product, be sure to clean the
following portions by using the prescribed cleaning
tools:
A
B
C
D
E
F
Portions to be cleaned
CD pickup lenses
Cleaning tools
Cleaning liquid : GEM1004
Cleaning paper : GED-008
54
DEH-P2550/XM/ES
2
3
4
1
6
7
8
5
8. OPERATIONS
A
B
C
D
E
F
55
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
A
B
C
D
E
F
56
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
A
B
C
D
E
F
57
DEH-P2550/XM/ES
5
6
7
8
1
2
3
4
A
B
C
D
E
F
58
DEH-P2550/XM/ES
3
4
1
2
6
7
8
5
A
B
C
D
E
F
59
DEH-P2550/XM/ES
5
6
7
8
相关型号：
DEH09P102
D Subminiature Connector, 9 Contact(s), Male, Screw and Solder Terminal, Receptacle
AMPHENOL
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