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.
CRT2981
MULTI-CD CONTROL HIGH POWER CD PLAYER WITH FM/AM TUNER
DEH-P250XM/UC, XN/UC
DEH-P250/XM/UC
- 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
DEH-P2500
XM/UC, XN/UC
DEH-P25
XM/UC, XN/UC
For details, refer to "Important symbols for good services".
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DEH-P250/XM/UC
SAFETY INFORMATION
CAUTION
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.
Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair
complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.
If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so
and refer the repair to a qualified service technician.
W
ARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of
California to cause cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 - Proposition 65
[ 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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5
6
7
8
DEH-P250/XM/UC
- 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 45.
3. After replacing the pickup unit, be sure to check the
grating.(See p.42.)
CONTENTS
SAFETY INFORMATION ............................................................................................................................................2
1. SPECIFICATIONS .......................................................................................................................................................4
2. EXPLODED VIEWS AND PARTS LIST.......................................................................................................................6
2.1 PACKING...............................................................................................................................................................6
2.2 EXTERIOR.............................................................................................................................................................8
2.3 CD MECHANISM MODULE ...............................................................................................................................12
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM...................................................................................................14
3.1 BLOCK DIAGRAM ..............................................................................................................................................14
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) ........................................................................................16
3.3 KEYBOARD UNIT ...............................................................................................................................................22
3.4 CD MECHANISM MODULE ...............................................................................................................................24
4. PCB CONNECTION DIAGRAM ................................................................................................................................28
4.1 TUNER AMP UNIT .............................................................................................................................................28
4.2 PANEL UNIT .......................................................................................................................................................32
4.3 KEYBOARD UNIT ...............................................................................................................................................33
4.4 CD MECHANISM MODULE ...............................................................................................................................34
5. ELECTRICAL PARTS LIST ........................................................................................................................................36
6. ADJUSTMENT .........................................................................................................................................................40
6.1 CD ADJUSTMENT .............................................................................................................................................40
6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT................................................................42
6.3 ERROR MODE ....................................................................................................................................................44
7. GENERAL INFORMATION .......................................................................................................................................45
7.1 DIAGNOSIS ........................................................................................................................................................45
7.1.1 DISASSEMBLY ..............................................................................................................................................45
7.1.2 CONNECTOR FUNCTION DESCRIPTION ....................................................................................................47
7.2 PARTS .................................................................................................................................................................48
7.2.1 IC ....................................................................................................................................................................48
7.2.2 DISPLAY.........................................................................................................................................................56
7.3 OPERATIONAL FLOW CHART...........................................................................................................................58
7.4 CLEANING ..........................................................................................................................................................59
8. OPERATIONS ...........................................................................................................................................................60
1. SPECIFICATIONS
4
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A
DEH-P250/XM/UC
- DEH-P250/XM/UC, DEH-P250/XN/UC
5
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
- DEH-P2500/XM/UC, DEH-P2500/XN/UC, DEH-P25/XM/UC, DEH-P25/XN/UC
6
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12
34
F
E
D
C
B
A
DEH-P250/XM/UC
1 Cord Assy CDE7060
2 Accessory Assy CEA3376
3 Spring CBH1650
4 Screw Assy CEA3445
5 Fixing Screw BPZ20P060FZK
6 Screw CBA1002
* 7 Polyethylene Bag CEG-127
8 Screw CRZ50P090FTC
9 Screw TRZ50P080FTC
* 10 Polyethylene Bag CEG-158
11 Handle CNC5395
12 Holder CND1249
13 Holder CND1250
14 Bush CNV3930
15 Polyethylene Bag CEG1173
* 16 Battery CEX1065
17 Carton
See Contrast table(2)
18 Contain Box
See Contrast table(2)
19 Protector CHP2663
20 Protector CHP2664
21-1 Owner’s Manual
See Contrast table(2)
21-2 Installation Manual
See Contrast table(2)
* 21-3 Warranty Card
See Contrast table(2)
* 21-4 Card
See Contrast table(2)
* 21-5 Caution Card
See Contrast table(2)
22 Case Assy
See Contrast table(2)
23 Remote Control Unit CXC1265
Mark No. Description Part No. Mark No. Description Part No.
(1) 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
7
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6
7
8
DEH-P250/XM/UC
- Owner's Manual, Installation Manual
Model Part No. Language
DEH-P250/XM/UC CRD3686 English, French, Spanish
DEH-P250/XN/UC CRD3687
DEH-P2500/XM/UC CRD3688 English, French, Spanish
DEH-P2500/XN/UC
DEH-P25/XM/UC CRD3689
DEH-P25/XN/UC
Part No.
Mark No. Symbol and Description DEH-P250/XM/UC DEH-P2500/XM/UC DEH-P25/XM/UC
17 Carton CHG4958 CHG4959 CHG4960
18 Contain Box CHL4958 CHL4959 CHL4960
21-1 Owner’s Manual CRD3686 CRD3688 CRD3688
21-2 Installation Manual CRD3687 CRD3689 CRD3689
* 21-3 Warranty Card CRY1070 Not used Not used
* 21-4 Card Not used ARY1048 ARY1048
* 21-5 Caution Card Not used Not used CRP1294
22 Case Assy CXB3520 Not used Not used
(2) CONTRAST TABLE
DEH-P250/XM/UC, DEH-P250/XN/UC, DEH-P2500/XM/UC, DEH-P2500/XN/UC, DEH-P25/XM/UC and
DEH-P25/XN/UC are constructed the same except for the following:
Part No.
Mark No. Symbol and Description DEH-P250/XN/UC DEH-P2500/XN/UC DEH-P25/XN/UC
17 Carton CHG4972 CHG4973 CHG4974
18 Contain Box CHL4972 CHL4973 CHL4974
21-1 Owner’s Manual CRD3686 CRD3688 CRD3688
21-2 Installation Manual CRD3687 CRD3689 CRD3689
* 21-3 Warranty Card CRY1070 Not used Not used
* 21-4 Card Not used ARY1048 ARY1048
* 21-5 Caution Card Not used Not used CRP1294
22 Case Assy CXB3520 Not used Not used
8
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12
34
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E
D
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A
DEH-P250/XM/UC
2.2 EXTERIOR
9
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
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
See Contrast table(2)
17 Tuner Amp Unit CWM8618
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
See Contrast table(2)
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
See Contrast table(2)
64 Screw BPZ20P100FZK
65 Button(DISP) CAC7779
66 Button(PAUSE) CAC7780
67 Button(AUDIO) CAC7781
68 Button(OPEN) CAC7782
69 Button(VOLUME) CAC7783
70 Button(SELECT) CAC7784
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
See Contrast table(2)
80 LCD(LCD1901)
See Contrast table(2)
81 Connector(CN1901) CKS4524
82 Holder CNC9757
83 Sheet CNM7647
84 Cushion CNM8092
85 Connector CNV6440
86 Lighting Conductor CNV7495
87 Grille Unit
See Contrast table(2)
88 Transistor(Q752, 901, 911) 2SD2375
89 IC(IC301) PAL007A
90 IC(IC1902) TSOP4840SB1
91 Holder
See Contrast table(2)
92 Screw
See Contrast table(2)
93 Choke Coil(L981) CTH1280
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
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DEH-P250/XM/UC
Part No.
Mark No. Symbol and Description DEH-P250/XM/UC DEH-P2500/XM/UC DEH-P25/XM/UC
16 Panel CNS6935 CNS7309 CNS7309
35 Holder Unit CXB6681 CXB6681 CXB6681
63 Detach Grille Assy CXB9601 CXB9602 CXB9603
79 Keyboard Unit CWM8635 CWM8635 CWM8636
80 LCD(LCD1901) CAW1759 CAW1759 CAW1760
87 Grille Unit CXB9629 CXB9630 CXB9631
91 Holder Not used Not used CNV7619
92 Screw Not used Not used BMZ40P140FTC
(2) CONTRAST TABLE
DEH-P250/XM/UC, DEH-P250/XN/UC, DEH-P2500/XM/UC, DEH-P2500/XN/UC, DEH-P25/XM/UC and
DEH-P25/XN/UC are constructed the same except for the following:
Part No.
Mark No. Symbol and Description DEH-P250/XN/UC DEH-P2500/XN/UC DEH-P25/XN/UC
16 Panel CNS6935 CNS7309 CNS7309
35 Holder CNC8659 CNC8659 CNC8659
63 Detach Grille Assy CXB9601 CXB9602 CXB9603
79 Keyboard Unit CWM8635 CWM8635 CWM8636
80 LCD(LCD1901) CAW1759 CAW1759 CAW1760
87 Grille Unit CXB9629 CXB9630 CXB9631
91 Holder Not used Not used CNV7619
92 Screw Not used Not used BMZ40P140FTC
11
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
12
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12
34
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E
D
C
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A
DEH-P250/XM/UC
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-P250/XM/UC
13
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
14
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
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
15
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
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
16
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
R4721
0R0
R9101
0R0
R9403
0R0
PE5
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
17
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
5341C
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.
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
18
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
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
19
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
A-a
A-b
A-a
A-a
A-b
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
20
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
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
21
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
A-a
A-b
A-b
3
4
1C
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.
FM:+30dBs
AM:+20dBs
IP-BUS:+36dBs
CD:+36dBs
22
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
3.3 KEYBOARD UNIT
C
C
KEYBOARD UNIT
23
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
C
B
CN1951
R1805,1808,1811,1814
P250
P2500
P25
150
180
IL1801,1802
CEL1651
CEL1662
LCD1901
CAW1759
CAW1760
D1803-1814
SML-310PT
SML-310VT
24
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
D
M1 CXB6007
M2 CXB8933
LOADING/CARRIAGE
MOTOR
SPINDLE MOTOR
MOTOR DRIVER
3.3V
REGULATOR
Pickup Unit(Service)(P10)
F
T
F
T
F
T
T
F
F
F
T
T
F
T
S
C
F
F
T
T
S
S
C
C
S
S
C
C
T
T
F
F
F
F
T
T
1
7
8
3
6
5
@
9
0
!
#
3.4 CD MECHANISM MODULE
25
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
D
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
D
CD CORE UNIT (S10)
A
CN???
F
T
C
S
SIGNAL LINE
FOCUS SERVO LINE
TRACKING SERVO LINE
CARRIAGE SERVO LINE
SPINDLE SERVO LINE
S
C
T
F
S
C
3
$
%
4
2
9
CN721
26
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
- Waveforms Note : 1. The encircled numbers denote measuring points in the circuit diagram.
2. Reference voltage REFO1(1.65V)
1 DSCSNS
2 CLCONT
3 LOEJ
4 VD
5V/div
5V/div
5V/div
10V/div
500ms/div
When loading a 12cm CD
Ref.:
GND
Mode:
Normal
5 SIN
6 CIN
7 TIN
1V/div
500mV/div
500mV/div
2s/div
When setting up after loading a 12cm CD-DA
disc
Ref.:
REFO
Mode:
Normal
1 DSCSNS
2 CLCONT
3 LOEJ
4 VD
5V/div
5V/div
5V/div
10V/div
500ms/div
When loading an 8cm CD
Ref.:
GND
Mode:
Normal
@ MDX
5 SIN
500mV/div
1V/div
5ms/div
Spindle waveform during "Play"
Ref.:
REFO
Mode:
Normal
# RFAGC 500mV/div 0.5µs/div
Ref.:
REFO
Mode:
Normal
@ MDX
5 SIN
500mV/div
1V/div
5µs/div
Spindle waveform during "Play"(Magnified) RF eye pattern
Ref.:
REFO
Mode:
Normal
8 FIN
! FE
500mV/div
500mV/div
200ms/div
Focus Search
Ref.:
REFO
Mode:
TEST
# RFAGC
0 TE
7 TIN
1V/div
500mV/div
500mV/div
500µs/div
Ref.:
REFO
Mode:
TEST
0 TE
# RFAGC
500mV/div
500mV/div
2ms/div
When "Tracking Open" 1 Track Jump
Ref.:
REFO
Mode:
TEST
8 FIN
9 RFOK
5 SIN
200mV/div
2V/div
2V/div
500ms/div
When setting up "Source On"(12cm CD-DA) During "Play"(CD-DA)
Ref.:
REFO
Mode:
Normal
! FE
8 FIN
0 TE
7 TIN
500mV/div
500mV/div
500mV/div
500mV/div
20ms/div
Ref.:
REFO
Mode:
Normal
0 TE
! FE
500mV/div
500mV/div
200ms/div
When setting up "Source On"
Ref.:
REFO
Mode:
Normal
27
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
# RFAGC
0 TE
7 TIN
1V/div
500mV/div
500mV/div
500ms/div
32 Track Jump
Ref.:
REFO
Mode:
TEST
# RFAGC
7 TIN
0 TE
8 FIN
1V/div
1V/div
1V/div
1V/div
500µs/div
Ref.:
REFO
Mode:
Normal
# RFAGC
0 TE
7 TIN
1V/div
500mV/div
500mV/div
5ms/div
100(32x3) Track Jump When reproducing black dots(1mm)
Ref.:
REFO
Mode:
TEST
$ LOUT
% ROUT
1V/div
1V/div
200µs/div
Analog Audio
Ref.:
AGND
Mode:
Normal
1 DSCSNS
2 CLCONT
3 LOEJ
5V/div
5V/div
5V/div
200ms/div
Ref.:
GND
Mode:
Normal
1 DSCSNS
2 CLCONT
3 LOEJ
5V/div
5V/div
5V/div
200ms/div
When "Eject"(12cm CD) When "Eject"(8cm CD)
Ref.:
GND
Mode:
Normal
# RFAGC
0 TE
6 CIN
5 SIN
1V/div
1V/div
500mV/div
2V/div
500µs/div
When reproducing scratch(1mm)
During inside/outside search
(outer circumference → inner circumference)
Ref.:
REFO
Mode:
Normal
# RFAGC
0 TE
6 CIN
5 SIN
1V/div
1V/div
500mV/div
2V/div
500µs/div
Ref.:
REFO
Mode:
Normal
# RFAGC
0 TE
6 CIN
5 SIN
1V/div
1V/div
500mV/div
2V/div
5ms/div
When reproducing fingerprint(65µm)
Ref.:
REFO
Mode:
Normal
28
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
4. PCB CONNECTION DIAGRAM
4.1 TUNER AMP UNIT
Capacitor
Connector
P.C.Board
Chip Part
A
A
TUNER AMP UNIT
SIDE B
SIDE A
NOTE FOR PCB DIAGRAMS
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.
2.Viewpoint of PCB diagrams
L981
R9101
R4721
IP-BUS
CORD ASSY
D
CN701
WIRED
REMOTE
DETACH SENSE
29
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
A
SIDE A
IC,Q
FRONT
R9405
R9403
B
CN1950
ANTENNA
PRE OUT
FM/AM TUNER UNIT
30
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
A
A
TUNER AMP UNIT
IC,Q
31
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
A
SIDE B
32
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
B
B
PANEL UNIT
B
PANEL UNIT
SIDE A
SIDE B
C
CN1901
A
CN831
EJECT
4.2 PANEL UNIT
33
C
C
KEYBOARD UNIT
C
KEYBOARD UNIT
SIDE A
SIDE B
IC,Q
IC,Q
B
CN1951
CLK
DISP
SRC 6 LOUD BAND/ESC FUNC
PAUSE AUDIO
1234 5
EQ
↓
↓
↓
↓
↓
↓
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
4.3 KEYBOARD UNIT
34
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
4.4 CD MECHANISM MODULE
CN721
CD CORE UNIT(S10)
D
M2
LOADING
/CARRIAGE MOTOR
SPINDLE MOTOR
M1
SIDE A
A
CN???
HOME
PICKUP UNIT
(SERVICE)(P10)
D
35
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
CD CORE UNIT(S10)
D
CLAMP
DSCSNS
8EJ
SIDE B
12EJ
D
36
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
5. ELECTRICAL PARTS LIST
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.
--- ------ ------------------------------------------ -------------------------
Unit Number : CWM8618
Unit Name : Tuner Amp Unit
MISCELLANEOUS
IC 101 IC HA12187FP
IC 131 IC PML003AM
IC 301 IC PAL007A
IC 601 IC PE5341C
IC 651 IC BD4834G
IC 722 IC TC7SET08FU
IC 921 IC BA033FP
Q 101 Transistor 2SA1037K
Q 102 Transistor DTC124EK
Q 301 Transistor DTC124EK
Q 351 Transistor IMH3A
Q 501 Transistor 2SC2412K
Q 502 Transistor IMD2A
Q 601 Transistor DTA114EK
Q 751 Transistor IMD2A
Q 752 Transistor 2SD2375
Q 831 Transistor DTC143EK
Q 901 Transistor 2SD2375
Q 902 Transistor IMD2A
Q 911 Transistor 2SD2375
Q 912 Transistor 2SB1238
Q 913 Transistor DTC114EK
Q 931 Transistor IMX1
Q 961 Transistor 2SB1238
Q 962 Transistor DTC114EK
Q 971 Transistor 2SA1036K
D 501 Diode DAN202U
D 502 Diode HZS9L(A2)
D 571 Diode MPG06G-6415G50
D 572 Diode MPG06G-6415G50
D 751 Diode HZS9L(B1)
D 831 Diode DAN202U
D 832 Diode DAN202U
D 833 Diode DAP202U
D 834 Diode DAP202U
D 901 Diode HZS6L(B1)
D 902 Diode MPG06G-6415G50
D 911 Diode HZS9L(B3)
D 921 Diode 1SR154-400
D 922 Diode 1SR154-400
D 923 Diode 1SR154-400
D 931 Diode HZS7L(C3)
D 932 Diode HZS7L(A1)
D 981 Diode MPG06G-6415G50
D 982 Diode MPG06G-6415G50
ZNR 401 Arrester DSP-201M
L 131 Inductor LCTA2R2J2520
L 401 Ferri-Inductor LAU4R7K
L 402 Inductor LAU1R0K
L 404 Inductor LAU1R0K
L 405 Inductor LAU2R2K
L 601 Inductor LAU2R2K
L 971 Inductor LAU2R2K
L 981 Choke Coil 600µH CTH1280
X 601 Radiator 12.58291MHz CSS1402
S 831 Switch(DETACH SENSE) CSN1039
SP 601 Buzzer CPV1062
Fuse 10A CEK1208
FM/AM Tuner Unit CWE1646
RESISTORS
R 101 RS1/16S150J
R 102 RS1/16S470J
R 103 RS1/16S101J
R 104 RS1/16S101J
R 105 RS1/16S181J
R 106 RS1/16S181J
R 107 RS1/16S223J
R 108 RS1/16S223J
R 109 RS1/16S102J
R 110 RS1/16S102J
R 111 RS1/16S222J
R 112 RS1/16S103J
R 113 RS1/16S332J
R 114 RS1/16S562J
R 131 RS1/16S0R0J
R 132 RS1/16S0R0J
R 133 RAB4C102J
R 137 RS1/16S101J
R 138 RS1/16S101J
R 139 RS1/16S101J
R 140 RS1/16S101J
R 141 RS1/16S0R0J
R 142 RS1/16S0R0J
R 301 RS1/16S153J
R 302 RS1/16S103J
R 303 RS1/16S103J
R 304 RS1/16S331J
R 351 RS1/16S821J
R 352 RS1/16S821J
R 359 RS1/16S223J
R 360 RS1/16S223J
R 401 RS1/16S681J
R 403 RS1/16S122J
R 404 RS1/16S681J
R 405 RS1/16S681J
R 406 RS1/16S681J
R 501 RS1/16S103J
R 502 RS1/16S473J
R 504 RS1/16S102J
R 601 RS1/16S102J
R 603 RS1/16S473J
R 605 RS1/16S102J
R 606 RS1/16S473J
R 607 RS1/16S104J
R 618 RS1/16S104J
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
A
37
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
R 619 RS1/16S1602D
R 620 RS1/16S473J
R 621 RS1/16S473J
R 622 RS1/16S473J
R 623 RS1/16S473J
R 624 RS1/16S473J
R 625 RS1/16S473J
R 626 RS1/16S681J
R 627 RS1/16S681J
R 628 RS1/16S681J
R 640 RS1/16S0R0J
R 651 RS1/16S102J
R 652 RS1/16S183J
R 713 RS1/16S104J
R 716 RS1/16S221J
R 724 RS1/16S104J
R 727 RS1/16S0R0J
R 728 RS1/16S0R0J
R 729 RS1/16S221J
R 730 RS1/16S221J
R 731 RS1/16S221J
R 732 RS1/16S221J
R 733 RS1/16S102J
R 735 RS1/16S221J
R 736 RS1/16S221J
R 737 RS1/16S221J
R 740 RS1/16S102J
R 741 RS1/16S221J
R 742 RS1/16S221J
R 749 RS1/16S0R0J
R 751 RD1/4PU821J
R 752 RD1/4PU221J
R 753 RS1/16S222J
R 754 RS1/16S472J
R 757 RD1/4PU0R0J
R 831 RS1/16S222J
R 832 RS1/16S222J
R 833 RS1/16S222J
R 834 RS1/16S222J
R 835 RS1/16S473J
R 836 RS1/16S473J
R 837 RD1/4PU391J
R 838 RS1/16S102J
R 839 RS1/16S102J
R 840 RS1/16S102J
R 841 RS1/16S102J
R 845 RS1/16S102J
R 901 RD1/4PU221J
R 902 RS1/16S223J
R 903 RS1/16S821J
R 904 RS1/16S821J
R 905 RS1/16S0R0J
R 911 RS1/16S223J
R 914 RS1/16S152J
R 915 RD1/4PU152J
R 916 RS1/16S223J
R 921 RD1/4PU1R8J
R 931 RS1/16S104J
R 932 RS1/16S473J
R 933 RS1/16S103J
R 934 RS1/16S473J
R 935 RS1/16S472J
R 961 RS1/16S223J
R 962 RS1/16S182J
R 963 RD1/4PU1R0J
R 965 RS1/16S182J
R 971 RS1/16S153J
R 972 RS1/16S153J
R 973 RS1/16S222J
R 981 RD1/4PU102J
R 4721 RD1/4PU0R0J
R 9101 RD1/4PU0R0J
R 9403 RD1/4PU0R0J
CAPACITORS
C 101 CKSRYB104K25
C 131 CEJQ1R0M50
C 132 CEJQ1R0M50
C 133 CKSRYB104K25
C 134 CKSRYB104K25
C 135 CEJQ1R0M50
C 136 CEJQ1R0M50
C 137 CEJQ1R0M50
C 138 CEJQ1R0M50
C 139 CEJQ470M16
C 140 CKSRYB104K25
C 143 CEJQ100M16
C 145 CKSRYB105K10
C 146 CKSRYB105K10
C 147 CKSRYB153K50
C 148 CKSRYB153K50
C 301 CKSRYB474K10
C 302 CKSRYB474K10
C 303 CKSRYB474K10
C 304 CKSRYB474K10
C 305 CKSRYB474K10
C 306 CKSRYB474K10
C 307 CKSRYB474K10
C 308 CKSRYB474K10
C 309 CEHAR330M10
C 310 3300µF/16V CCH1486
C 311 CKSRYB104K25
C 312 CEHAR100M16
C 313 CKSQYB225K10
C 314 CKSQYB225K10
C 351 CEJQ100M16
C 352 CEJQ100M16
C 401 CKSRYB103K50
C 402 CEJQ470M6R3
C 403 CKSRYB103K50
C 404 CKSRYB103K50
C 405 CEJQ101M16
C 407 CKSYB475K10
C 602 CKSRYB105K10
C 603 CCSRCH200J50
C 604 CCSRCH200J50
C 605 CEJQ4R7M35
C 606 CKSRYB104K25
C 608 CCSRCH101J50
C 609 CCSRCH470J50
C 611 CKSRYB104K25
C 652 CKSRYB105K10
C 729 CKSRYB473K50
C 751 CKSRYB224K10
C 752 CKSRYB102K50
C 753 CEJQ101M16
C 901 CEJQ470M10
C 902 CKSRYB103K50
C 903 CKSRYB472K50
C 904 470µF/16V CCH1331
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
38
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
C 911 CEJQ221M10
C 912 CKSRYB103K50
C 913 CEJQ101M16
C 921 CEJQ220M10
C 922 CKSRYB103K50
C 923 CKSYB475K10
C 931 CKSRYB104K25
C 961 CKSRYB473K50
Unit Number :
CWM8635(DEH-P250/XM/UC, DEH-
P250/XN/UC, DEH-P2500/XM/UC, DEH-P2500/XN/UC)
Unit Name : Keyboard Unit
MISCELLANEOUS
IC 1901 IC PD6340A
IC 1902 IC TSOP4840SB1
D 1801 LED NSSW440-9159
D 1802 LED NSSW440-9159
D 1803 LED SML-310PT
D 1804 LED SML-310PT
D 1805 LED SML-310PT
D 1806 LED SML-310PT
D 1807 LED SML-310PT
D 1808 LED SML-310PT
D 1809 LED SML-310PT
D 1810 LED SML-310PT
D 1811 LED SML-310PT
D 1812 LED SML-310PT
D 1813 LED SML-310PT
D 1814 LED SML-310PT
D 1901 Diode DAN202U
D 1902 Diode DAP202U
X 1901 Ceramic Resonator 4.97MHz CSS1422
IL 1801 Lamp 14V 40mA CEL1651
IL 1802 Lamp 14V 40mA CEL1651
LCD1901 LCD CAW1759
RESISTORS
R 1801 RS1/16S151J
R 1802 RS1/16S151J
R 1803 RS1/16S151J
R 1804 RS1/16S181J
R 1805 RS1/16S151J
R 1806 RS1/16S181J
R 1807 RS1/16S181J
R 1808 RS1/16S151J
R 1809 RS1/16S181J
R 1810 RS1/16S181J
R 1811 RS1/16S151J
R 1812 RS1/16S181J
R 1813 RS1/16S181J
R 1814 RS1/16S151J
R 1815 RS1/16S181J
R 1901 RS1/16S121J
R 1902 RS1/16S2R2J
R 1904 RS1/16S222J
R 1905 RS1/16S222J
R 1906 RS1/16S473J
CAPACITORS
C 1801 CKSRYB104K16
C 1802 CKSRYB104K16
C 1901 CKSRYB224K10
C 1902 CSZS4R7M16
Unit Number : CWM8636(DEH-P25/XM/UC,
DEH-P25/XN/UC)
Unit Name : Keyboard Unit
MISCELLANEOUS
IC 1901 IC PD6340A
IC 1902 IC TSOP4840SB1
D 1801 LED NSSW440-9159
D 1802 LED NSSW440-9159
D 1803 LED SML-310VT
D 1804 LED SML-310VT
D 1805 LED SML-310VT
D 1806 LED SML-310VT
D 1807 LED SML-310VT
D 1808 LED SML-310VT
D 1809 LED SML-310VT
D 1810 LED SML-310VT
D 1811 LED SML-310VT
D 1812 LED SML-310VT
D 1813 LED SML-310VT
D 1814 LED SML-310VT
D 1901 Diode DAN202U
D 1902 Diode DAP202U
X 1901 Ceramic Resonator 4.97MHz CSS1422
IL 1801 Lamp 14V 40mA CEL1662
IL 1802 Lamp 14V 40mA CEL1662
LCD1901 LCD CAW1760
RESISTORS
R 1801 RS1/16S151J
R 1802 RS1/16S151J
R 1803 RS1/16S151J
R 1804 RS1/16S181J
R 1805 RS1/16S181J
R 1806 RS1/16S181J
R 1807 RS1/16S181J
R 1808 RS1/16S181J
R 1809 RS1/16S181J
R 1810 RS1/16S181J
R 1811 RS1/16S181J
R 1812 RS1/16S181J
R 1813 RS1/16S181J
R 1814 RS1/16S181J
R 1815 RS1/16S181J
R 1901 RS1/16S121J
R 1902 RS1/16S2R2J
R 1904 RS1/16S222J
R 1905 RS1/16S222J
R 1906 RS1/16S473J
CAPACITORS
C 1801 CKSRYB104K16
C 1802 CKSRYB104K16
C 1901 CKSRYB224K10
C 1902 CSZS4R7M16
Unit Number : CWM8758
Unit Name : Panel Unit
MISCELLANEOUS
D 1970 LED CL220PGC
S 1970 Push Switch(EJECT) CSG1112
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
C
C
B
39
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
RESISTORS
R 1970 RS1/16S101J
R 1971 RS1/16S101J
R 1972 RS1/16S0R0J
CAPACITORS
C 1970 CKSRYB104K16
Unit Number : CWX2708
Unit Name : CD Core Unit(S10)
MISCELLANEOUS
IC 201 IC UPD63712GC
IC 301 IC BA5996FP
IC 701 IC NJM2391DL1-33
Q 101 Transistor 2SB1132
D 101 Diode 1SS355
D 701 Diode 1SR154-400
X 201 Ceramic Resonator 16.934MHz CSS1603
S 901 Spring Switch(HOME) CSN1051
S 902 Spring Switch(CLAMP) CSN1051
S 903 Spring Switch(DSCSNS) CSN1052
S 904 Spring Switch(12EJ) CSN1051
S 905 Spring Switch(8EJ) CSN1051
RESISTORS
R 101 RS1/10S1R5J
R 102 RS1/10S1R5J
R 103 RS1/10S1R5J
R 104 RS1/10S1R5J
R 105 RS1/10S1R5J
R 201 RS1/16S102J
R 202 RS1/16S1002D
R 203 RS1/16S1002D
R 204 RS1/16S1002D
R 205 RS1/16S1002D
R 206 RS1/16S1002D
R 207 RS1/16S1002D
R 208 RS1/16S1002D
R 209 RS1/16S1002D
R 214 RS1/16S103J
R 215 RS1/16S393J
R 216 RS1/16S122J
R 217 RS1/16S562J
R 218 RS1/16S472J
R 234 RS1/16S0R0J
R 235 RS1/16S103J
R 236 RS1/16S103J
R 301 RS1/16S183J
R 302 RS1/16S822J
R 303 RS1/16S183J
R 304 RS1/16S822J
R 305 RS1/16S183J
R 306 RS1/16S183J
R 307 RS1/16S183J
R 308 RS1/16S183J
R 501 RS1/16S102J
R 503 RS1/16S102J
R 505 RS1/16S102J
R 506 RS1/16S221J
R 507 RS1/16S221J
R 508 RS1/16S221J
R 509 RS1/16S221J
R 601 RS1/16S101J
R 602 RS1/16S101J
R 603 RS1/16S0R0J
R 901 RS1/16S104J
R 902 RS1/16S473J
R 903 RS1/16S273J
CAPACITORS
C 101 CKSRYB104K16
C 102 CKSRYB104K16
C 103 100µF/16V CCH1504
C 104 47µF/6.3V CCH1506
C 106 CCSRCH101J50
C 108 CKSRYB224K16
C 109 CKSRYB224K16
C 201 CKSRYB104K16
C 202 CKSRYB471K50
C 203 CKSRYB104K16
C 205 22µF/6.3V CCH1507
C 206 CKSRYB103K25
C 207 CKSRYB104K16
C 208 100µF/6.3V CCH1505
C 209 CKSRYB104K16
C 210 CKSRYB104K16
C 211 CKSRYB104K16
C 212 CKSRYB104K16
C 213 CKSRYB332K50
C 214 CKSRYB473K25
C 215 CKSRYB104K16
C 216 CKSRYB103K25
C 217 CCSRCH560J50
C 218 CCSRCH5R0C50
C 219 CKSRYB104K16
C 220 CKSRYB104K16
C 221 CKSRYB104K16
C 222 CKSRYB103K25
C 223 CCSRCH680J50
C 224 CCSRCH470J50
C 225 CKSRYB682K50
C 231 CKSRYB102K50
C 232 CKSRYB102K50
C 301 100µF/16V CCH1504
C 302 CCSRCH221J50
C 303 CCSRCH221J50
C 304 CKSRYB472K50
C 305 CKSRYB103K25
C 306 CKSRYB104K16
C 501 CKSRYB103K25
C 502 CKSRYB103K25
C 702 100µF/16V CCH1504
C 703 CKSRYB224K16
C 704 CKSRYB104K16
C 705 10µF/6.3V CCH1470
Miscellaneous Parts List
Pickup Unit(Service)(P10) CXX1641
M 1 Motor Unit(SPINDLE) CXB6007
M 2 Motor Unit(LOADING/CARRIAGE) CXB8933
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
D
40
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.
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.
• 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.
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.
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.
1
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DEH-P250/XM/UC
6. ADJUSTMENT
6.1 CD ADJUSTMENT
41
[BAND]
[BAND]
[BAND]
[BAND]
[BAND]
Power On
(T.Offset is adjusted)
TRK
00
MIN
00
SEC
00
[CD]or[SOURCE]
Source On
TRK MIN
[4]+[6]+Reset
Test Mode In
[3]
[1]
[1]
Power On
(T.Offset is not adjusted)
TRK
99
MIN
99
SEC
99
[2]
[2]
[2]
[2]
Power Off
TRK MIN SEC
Power Off
TRK MIN SEC
Power Off
TRK MIN SEC
Power Off
TRK MIN SEC
Focus Close /
S curve check
TRK
91
MIN
91
SEC
91
[6] [1]
[3]
[6]
[3]
Focus Mode
switching
*2
TRK
0x
MIN0xSEC
0x
Tracking Servo
Close
TRK
00
MIN
00
SEC
00
or
TRK
99
MIN
99
SEC
99
CRG-
*8
TRK
00
MIN
00
SEC
00
or
TRK
99
MIN
99
SEC
99
[→][←]
[→][←]
[→] [←]
CRG+
*8
TRK
00
MIN
00
SEC
00
or
TRK
99
MIN
99
SEC
99
Automatic adjustment
display switching
*3
TRK
??
MIN
??
SEC
??
T.Close and F,T AGC
and RF AGC
Applicable servomechanism
TRK
xx
MIN
xx
SEC
xx
[6]
[3]
T.Close and
Applicable servomechanism
TRK
xx
MIN
xx
SEC
xx
RF AGC /
RF AGC coefficient display
TRK
??
MIN
??
SEC
??
CRG+
TRK8xMIN8xSEC
8x
or
TRK9xMIN9xSEC
9x
CRG-
TRK8xMIN8xSEC
8x
or
TRK9xMIN9xSEC
9x
T.Balance adjustment
T.Balance coefficient display
TRK
??
MIN
??
SEC
??
F,T,RF AGC /
F.Bias display switching
*7
TRK
??
MIN
??
SEC
??
F,T AGC /F.Bias
RF AGC
TRK
xx
MIN
xx
SEC
xx
CRG/TR Jump value
*5
switching
TRK
xx
MIN
xx
SEC
xx
CRG/TR Jump +
*4
TRK
xx
MIN
xx
SEC
xx
CRG/TR Jump -
*4
*6
TRK
xx
MIN
xx
SEC
xx
Tracking Open
TRK8xMIN8xSEC
8x
or
TRK9xMIN9xSEC
9x
Tracking Open
TRK8xMIN8xSEC
8x
or
TRK9xMIN9xSEC
9x
[Key]
[BAND]
[→]
[6]
[1]
[2]
[3]
-
-
Power On / Off
CRG + / TR Jump +
(Direction of the external surface)
CRG - / TR Jump (Direction of the internal surface)
CLS and AGC and Applicable servomechanism /
AGC, AGC display switching
RF Gain switching / Offset adjustment display /
T.Balance adjustment / T.Open
Close, S.Curve /
SPDL 1X / 2X switching
(Double-speed compatibility only)
Gop measurement
Forcus Mode switching / Tracking Close
/ CRG, TR Jump switching
Test Mode
Operation
[KEY]
Contents
Display
Rough Servo and RF AGC / F, T, RF AGC
*1) TYP → -12dB
TRK MIN SEC TRK 12 MIN 12 SEC 12
*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)
*3) F.Offset Display → RF.Offset Display → T.Offset Display
*4) 1TR/32TR/100TR
*5) Single TR → 32TR → 100TR → CRG Move
9x(8x) : 91(81) 92(82) 93(83) 94(84)
*6) Only at the time of CRG Move or 100TR Jump
*7) TRK/MIN/SEC → F.AGC → T.AGC Gain → F.bias → RF AGC
*8) CRG motor voltage = 2[V]
[←]
- Flow Chart
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
42
• 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
• Oscilloscope, Two L.P.F.
• E, F, REFO1
• Disc • ABEX TCD-782
• Mode • TEST MODE
• 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".
100kΩ
390pF
100kΩ
390pF
E
VREF
F
VREF
Xch Ych
L.P.F.
L.P.F.
REFO1
F
E
CD CORE UNIT(S10)
Oscilloscope
1
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F
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D
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B
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DEH-P250/XM/UC
6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT
43
Grating waveform
45°
0°
75°
60°
30°
90°
Ech → Xch 20mV/div, AC
Fch → Ych 20mV/div, AC
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
44
- Error Messages
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)
10
Electricity Carriage Home NG CRG can't be moved to inner diameter.
SERVO LSI Com-
CRG can't be moved from inner diameter.
munication Error → Failure on home switch or CRG move mechanism.
Communication error between microcomputer and SERVO LSI.
11 Electricity Focus Servo NG Focusing not available.
→ Stains on rear side of disc or excessive vibrations on REWRITABLE.
12 Electricity Spindle Lock NG Spindle not locked. Sub-code is strange (not readable).
Subcode NG → 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.
17 Electricity Setup NG AGC protection doesn't work. Focus can be easily lost.
→ Damages or stains on disc, or excessive vibrations on REWRITABLE.
30 Electricity Search Time Out
Failed to reach target address.
→ CRG tracking error or damages on disc.
44 Electricity ALL Skip Skip setting for all track.
(CD-R/RW)
50 Mechanism CD On Mech Error Mechanical error during CD ON.
→ Defective loading motor, mechanical lock and mechanical sensor.
A0 System Power Supply NG
Power (VD) is ground faulted.
→ 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.
1
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DEH-P250/XM/UC
6.3 ERROR MODE
45
1
1
Fig.1
Fig.2
-
Removing the CD Mechanism Module (Fig.1)
- Removing the Tuner Amp Unit (Fig.2)
Remove the four screws.
Remove the screw.
1. Remove the Case.
-
Removing the Case (not shown)
Disconnect the connector and then remove the
CD Mechanism Module.
-
Removing the Grille Assy (Fig.1)
2
Remove the two screws and then remove
the Grille Assy.
1
1
2 2
CD Mechanism Module
Grille Assy
1
2
2
2
3
3
3
4
Tuner Amp Unit
2
Remove the three screws.
3
Straight the tabs at three locations
indicated.
4
Remove the screw and then remove
the Tuner Amp Unit.
1
1
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 DISASSEMBLY
46
1
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12
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F
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A
DEH-P250/XM/UC
- 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.
- 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.
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.
Do not squeeze.
Lower Frame
Damper
Carriage Mechanism
A
C
A
B
B
Damper
Damper
C
A
A
A
Upper Frame
- 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.
Planet Gear
Change
Arm
Inner Holder
Styling Holder
Feed Screw
Washer
Pickup Lock Arm
47
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
7.1.2 CONNECTOR FUNCTION DESCRIPTION
7
111098
4321
65
10A
1. BUS+
2. GND
3. GND
9. NC
10. NC
11. B.REM
4. NC
5. BUS-
12. NC
13. NC
6. GND
7. BUS L+ INPUT
8. ASENB
9. BUS R+ INPUT
10. BUS R- INPUT
11. BUS L- INPUT
14. ACC
15. GND
16. BACK UP
11535 79 1113
216468 101214
1. FR+
2. RR-
3. FR-
4. RR+
5. FL+
6. RL+
7. FL-
8. RL-
ANTENNA JACK REAR OUTPUT
48
- Pin Functions(PE5341C)
Pin No. Pin Name I/O Format Function and Operation
1 swvdd O C Grille : Chip enable output
2-4 NC Not used
5 TESTIN I Test program mode input
6 LCDPW O C LCD back light power supply control output
7 TELIN I Telephone mute input
8 ejectin I Eject sense input
9 FLPILM I Flap illumination input
10 DALMON I/O C For consumption low-current
11 reset I Reset input
12 XT2 Not used
13 XT1 I Clock connection pin
14 VSS GND
15 X2 Crystal oscillator connection pin
16 X1 I Crystal oscillator connection pin
17 REGOFF I Regulator operation specification signal
18 REGC Capacitor for regulator connect pin
19 VDD Power supply
20 ILMPW O Illumination power supply control output
21 SYSPW O C System power control output
22 adpw O C A/D converter power supply control output
23 NC Not used
24 IPPW O C Power supply control output for IP BUS interface IC
25 NC Not used
26 ROMDATA O C ROM correction data output
27 ROMCLK O C ROM correction clock output
28 ROMCS O ROM correction chip select output
29-31 NC Not used
32 tunpce@ O PLL chip enable output2
33 VST O E.VOL : Strobe output
34 VCK O E.VOL : Clock output
35 VDT O E.VOL : Data output
36 ANTPW O Antenna power output
37 MUTE O C System mute output
38, 39 NC Not used
40 VSS GND
41 VDD Power supply
42 RDS57K I 57kHz count pulse input
43 drst O C RDS : Decoder reset output
44 rdslk I C RDS : Decoder clock input
45 RDT O C RDS : Decoder data input
46 DORAON O C TUNER : 3V power supply
47-57 NC Not used
58 STRKEY2 I Steering remote controller input
59 CDLOEJ O C CD : Load Moter Load/Eject output
60 CLCONT I CD : Driver input switch output
61 CONT O C CD : Servo driver power supply control output
62 PCL O C Clock adjustment
63 CLAMPSW I Clamp SW input
64 VDCONT O C CD : VD power control output
65 xsck(TSCK) O CD LSI clock output
66 XSI(TSI) I CD LSI data input
67 XSO(TSO) O C CD LSI data output
68 XAO O C CD LSI command/data control output
69 xrst O C CD : LSI reset control output
70 xstb O CD LSI strobe output
71 ASENBO O IP-BUS : Slave power supply control output
72 EMUTE O E.VOL : Mute control output
73 TEST GND
74 SL I C TUNER : Signal level input
75 STRKEY1 I C Steering remote controller input
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DEH-P250/XM/UC
7.2 PARTS
7.2.1 IC
49
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
Pin No. Pin Name I/O Format Function and Operation
76 MODELIN I Model select input
77 CSENS I Flap close sense input
78 NC Not used
79 DSCSNS I CD : Disc insert sense input
80 VDSENS I CD : VD voltage sense input
81 TEMP I CD : Temperature sense input
82 AVDD A/D converter power supply terminal
83 AVREF A/D converter reference voltage terminal
84 AVSS GND
85 RX I IP-BUS : Data input
86 TX O IP-BUS : Data output
87 NMI GND
88 ldet I PLL lock sense input
89 rck I RDS : Clock input
90 dsens I Grille detach sense input
91 PACK I PACK input
92 asens I ACC power sense input
93 bsens I Back up power sense input
94 TUNPDI I PLL IC data input
95 KYDT I Grille data input
96 DPDT O C Grille data output
97 TUNPCK O PLL clock output
98 TUNPDO O C PLL data output
99 TUNPCE O C PLL chip enable output
100 PEE O C Beep tone output
* PE5341C
51
80
50
81
31
100
30
1
IC's marked by * are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
Format Meaning
C CMOS
BD4834G
N.C.
54
Vref
N.C.
123
VOUT
VDD
GND
50
1
TAB
2
P-GND2
3
OUT2-
4
STBY
5
OUT2+
6
VCC
7
OUT1-
8
P-GND1
9
OUT1+
10
SVR
11
IN1
12
IN2
13
S-GND
14
IN4
15
IN3
16
AC-GND
17
OUT3+
18
P-GND3
19
OUT3-
20
VCC
21
OUT4+
22
MUTE
23
OUT4-
24
P-GND4
SWITCH
25
+
-
+
-
Offset
Detection
+
-
+
-
Offset
Detection
+
-
+
-
Offset
Detection
+
-
+
-
Offset
Detection
Protector;
Over current limit
sw_vcc
stby
Protector;
Short circuit
Mute circuit
amp_vcc
Stand-by
Circuit
Protector;
Over voltage
sw_vcc
Protector;
Thermal
Reference
amp_vcc
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
PAL007A
51
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
TSOP4840SB1
- Pin Functions (PD6340A)
Pin No. Pin Name I/O Function and Operation
1-5 SEG4-0 O LCD segment output
6-9 COM3-0 O LCD common output
10 VLCD LCD drive power supply
11-14 KST3-0 O Key strobe output
15,16 KDT0,1 I Key data input (analogue input)
17 REM I Remote control reception input
18 DPDT I Display data input
19 NC Not used
20 KYDT O Key data output
21 MODA GND
22 X0 Crystal oscillator connection pin
23 X1 Crystal oscillator connection pin
24 VSS GND
25,26 KDT2,3 I Key data input
27 NC Not used
28 KST4 O Key strobe output
29-32 NC Not used
33-55 SEG35-13 O LCD segment output
56 VDD Power supply
57-64 SEG12-5 O LCD segment output
*PD6340A
OUT GND VCC
PIN
1
2
3
Control
Circuit
Band
Pass
AGC
Input
Demodu-
lator
32
17
33
16
48
1
49
64
52
- Pin Functions(UPD63712GC)
Pin No. Pin Name I/O Function and Operation
1 LD O Output of LD
2 PD I Input of PD
3 PN I Assignment of pickup polarity
4 AVDD Power supply for the analog system
5 DGND Ground for digital circuits
6 RFOK O Output of RFOK
7 INTQ O Interruption signals to the external microcomputer
8 rst I Input of reset
9 A0 I Command/Parameter discrimination signal input
10 stb I Data strobe signal input
11 sck I Serial data clock input
12 SO O Serial data output
13 SI I Serial data input
14 DVDD Power supply for digital circuits
15 DAVDD Power supply for DAC
16 ROUT O Output of audio for the right channel
17 DAGND GND for DAC
18 REGC Connected to the capacitor for band gap
19 DAGND GND for DAC
20 LOUT O Output of audio for the left channel
21 DAVDD Power supply for DAC
22 XVDD Power supply for the crystal oscillator
23 xtal O Connected to the crystal oscillator
24 XTAL I Connected to the crystal oscillator
25 XGND Ground for the crystal oscillator
26 DVDD Power supply for digital circuits
27 C1D1 O Information on error correction
28 C1D2 O Information on error correction
29 C2D1 O Information on error correction
30 C2D2 O Information on error correction
31 C2D3 O Information on error correction
32 LOCK O Output of LOCK
33 MIRR O MIRR signal
34 HOLD O HOLD signal
35 PLCK O Output of PLCK
36 C16M O Output of 16.9344MHz
37 DGND Ground for digital circuits
38 TX O DAI output
39 EMPH O Pre-emphasis information output
40 FLAG O The flag for which output sound data cannot be corrected is outputted
41 DVDD Power supply for digital circuits
42 LIMIT I Signal is inputted when the register can be read
43 xtalen I Permission to oscillate
44 DGND Ground for digital circuits
45 DIN I Input of audio data
46 DOUT O Output of audio data
47 SCKIN I Clock input for audio data
48 SCKO O Clock output for audio data
49 LRCKIN I Input of LRCK for audio data
50 LRCK O Output LRCK for audio data
51 DVDD Power supply for digital circuits
52 FD+ O Output of focus drive PWM
53 FD- O Output of focus drive PWM
54 TD+ O Output of tracking drive PWM
55 TD- O Output of tracking drive PWM
56 SD+ O Output of thread drive PWM
57 SD- O Output of thread drive PWM
58 MD+ O Output of spindle drive PWM
59 MD- O Output of spindle drive PWM
60 DGND Ground for digital circuits
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
53
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
Pin No. Pin Name I/O Function and Operation
61 TESTEN I Connected to GND
62-66 TEST4-0 I Connected to GND
67 ADGND GND for DAC
68 EFM O Output of EFM signals
69 ASY I Input of asymmetry
70 ADVDD Power supply for DAC
71 RFI I Input of RF
72, 73 EQ2, 1 Equalizer 2, 1
74 RF- I Reversal input of RF
75 RF2- I Reversal input of RF2
76 AGCO O Output of RF
77 AGCI I Input of AGC
78 RFO O Output of RF
79 ATEST O Analog tests
80 C3T Connection to the capacitor for detecting 3T
81 AGND Ground for the analog system
82 A I Input of A
83 C I Input of C
84 B I Input of B
85 D I Input of D
86 F I Input of F
87 E I Input of E
88 VREFIN I Photo-detector input bias voltage
89 AVDD Power supply for the analog system
90 REFOUT O Output of reference voltage
91 REFC Connected to the capacitor for output of REFOUT
92 FE- I Reversal input of FE
93 FEO O Output of FE
94 ADCIN I TEST
95 TE- I Reversal input of TE
96 TEO O Output of TE
97 TE2 O TE2
98 TEC I TEC
99 AGND Ground for the analog system
100 PWMSW I Servo PWM mode switching
* UPD63712GC
50
51
75
76
26
25
1
100
54
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
IN
OUT
GND
13
2
Thermal
Shutdown
Over current
protector
VREF
+
-
NJM2391DL1-33
- Pin Functions(BA5996FP)
Pin No. Pin Name Function and Operation
1 VR Input pin for reference voltage
2 OPIN2(+) Input pin for non-inverting input for CH2 preamplifier
3 OPIN2(-) Input pin for inverting input for CH2 preamplifier
4 OPOUT2 Output pin for CH2 preamplifier
5 OPIN1(+) Input pin for non-inverting input for CH1 preamplifier
6 OPIN1(-) Input pin for inverting input from CH1 preamplifier
7 OPOUT1 Output pin for CH1 preamplifier
8 GND Ground pin
9 MUTE Mute control pin
10 POWVCC1 Power supply pin for CH1, CH2, and CH3 at "Power" stage
11 VO1(-) Driver CH1 - Negative output
12 VO1(+) Driver CH2 - Positive output
13 VO2(-) Driver CH2 - Negative output
14 VO2(+) Driver CH2 - Positive output
15 VO3(+) Driver CH2 - Positive output
16 VO3(-) Driver CH2 - Negative output
17 VO4(+) Driver CH4 - Positive output
18 VO4(-) Driver CH4 - Negative output
19 POWVCC2 Power supply pin for CH4 at "Power" stage
20 GND Ground pin
21 CNT Control pin
22 LDIN Loading input
23 OPOUTSL Output pin for preamplifier for thread
24 OPINLSL Input pin for preamplifier for thread
25 OPOUT3 CH3 preamplifier output pin
26 OPIN3(-) Input pin for inverting input for CH3 preamplifier
27 OPIN3(+) Input pin for non-inverting input for CH3 preamplifier
28 PREVCC PreVcc
BA5996FP
15
114
28
55
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
- FM/AM Tuner Unit
7 6 13 5 10 9 8 11 14 18 19 20 21
WC
CE2
ROM_VDD
IC 3 EEPROM
5.0V
OSC
LPF
1
3
AM ANT
FM ANT
ATT
ATT
ANT adj
FMRF
FMRF
RF adj
IC 1
3.3V
MIXER, IF AMP
T51
RFGND
OSCGND
DGND
212 1522 16 4
AUDIOGNDNCVCC
CF52
VDD_3.3
17
No. Symbol I/O Explain
1 AMANT 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 RF ground
Ground of antenna block
3 FMANT I FM antenna input Input of FM antenna 75Ω Surge absorber
4 VCC power supply The power supply for analog block. D.C 8.4V ± 0.3
5 SL O signal level
Output of FM/AM signals level
6 CE2 I chip enable-2 Chip enable for EEPROM ”Low” active
7 WC I write control Y
ou can write EEPROM, when EEPROM write control is “Low”.
Ordinary non connection
8 CE1 I chip enable-1 Chip enable for AF•RF ”High” activ
9 CK I clock
10 DI I data in
11 NC non connection
Clock
Data input
Not used
12 OSCGND osc ground Ground of oscillator block
13 ROM_VDD power supply Power supply for EEPROM pin 13 is connected with a power supply of
micro computer.
14 DO O data out
15 DGND digital ground
16 NC non connection
Data output
Ground of digital block
Not used
17 VDD_3.3 power supply The power supply for digital block. 3.3V ± 0.2
18 NC non connection
Not used
19 NC non connection Not used
20 NC non connection
21 NC non connection
Not used
Not used
22 AUDIOGND audio ground Ground of audio block
23 L ch O L channel output FM stereo “L-ch” signal output or AM audio output
24 R ch O R channel output FM stereo “R-ch” signal output or AM audio output
CF51
3.3V
SL
DI
CK
IC 5
←
5V 3.3V
IC 4
3.3V 2.5V
NC
CE1
←
2.5V
DO
NCNCNC
NC
IC 2
2.5V
DET, FM MPX
Rch
24
Lch
23
(DSP-201M-S00B) is necessary.
V
e
V
56
SEG39
SEG38
SEG37
SEG36
COM3
COM2
COM1
COM0
SEG35
SEG34
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
COM3
COMMON
SEGMENT
COM2
COM1
COM0
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
7.2.2 DISPLAY
- LCD(CAW1759)(DEH-P250/XM/UC, DEH-P250/XN/UC, DEH-P2500/XM/UC, DEH-P2500/XN/UC)
57
SEG39
SEG38
SEG37
SEG36
COM3
COM2
COM1
COM0
SEG35
SEG34
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
COM3
COMMON
SEGMENT
COM2
COM1
COM0
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
- LCD(CAW1760)(DEH-P25/XM/UC, DEH-P25/XN/UC)
58
VDD=5V
Pin 41
ASENBO←H
Pin 71
Power ON
bsens=L
asens=L
dsens=L
bsens
Pin 93
asens
Pin 92
dsens
Pin 90
swvdd←H
Pin 1
Source keys
operative
Completes power-on operation.
(After that, proceed to each source operation)
SYSPW←H
Pin 21
Starts
communication
with Grille
microcomputer.
Source ON
300ms
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.
CSENS
Pin 77
2V < CSENS < 3V
- CSENS 2V, 3V CSENS
Last source returns.
CD loading functions are available.
Keys except for EJECT key are not available.
<<
==
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
7.3 OPERATIONAL FLOW CHART
59
Before shipping out the product, be sure to clean the
following portions by using the prescribed cleaning
tools:
Portions to be cleaned Cleaning tools
CD pickup lenses Cleaning liquid : GEM1004
Cleaning paper : GED-008
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
7.4 CLEANING
60
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
8. OPERATIONS
61
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
62
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
63
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
64
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
65
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
66
1
234
12
34
F
E
D
C
B
A
DEH-P250/XM/UC
Fixing the Front Panel
If you do not operate the Detaching and Replacing the Front Panel Function, use the supplied fixing screws
and fix the front panel to this unit.
1. Attach the holders to both sides of the front panel.
2. Replace the front panel to the unit.
3. Flip the holders into upright positions.
4. Fix the front panel to the unit using fixing screws.
Fixing screw
Holder
CND1249
BPZ20P060FZK
Holder
CND1250
67
+
≠
+
≠
+
≠
+
≠
+
≠
+
≠
IP-BUS input (Blue)
This Product
Blue/white
Tosystem control terminal of the power amp
or Auto-antenna relay control terminal
(max. 300 mA 12 V DC).
Connecting cords
with RCApin plugs
(sold separately)
System remote control
Rear speakerRear speaker
Right
Front speaker
Rear speaker
White Gray
White/black
Green
Green/black
Gray/black
Violet
Violet/black
Front speaker
Rear speaker
Left
With a 2 speaker system, do not connect
anything to the speaker leads that are not
connected to speakers.
Yellow
Toterminal always supplied
with power regardless of
ignition switch position.
Black (ground)
Tovehicle (metal) body.
Red
Toelectric terminal controlled
by ignition switch (12 V DC)
ON/OFF.
Power amp
(sold separately)
Antenna jack
Rear output
Perform these connections when using
the optional amplifier.
IP-BUS cable
Multi-CD player
(sold separately)
Fuse
5
6
7
8
F
E
D
C
B
A
5
6
7
8
DEH-P250/XM/UC
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