Pioneer DEH-P25 Service Manual Download Page 1

Page: 1 / 67

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

PIONEER CORPORATION 2002

K-ZZA. OCT. 2002 Printed in Japan

ORDER NO.

CRT2981

MULTI-CD CONTROL HIGH POWER CD PLAYER WITH FM/AM TUNER

This service manual should be used together with the following manual(s):

CD Mech. Module:Circuit Description, Mech.Description, Disassembly

DEH-P2500

XM/UC, XN/UC

For details, refer to "Important symbols for good services".

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

Summary of Contents for DEH-P25

Page 1: ...D PLAYER WITH FM AM TUNER DEH P250XM UC XN UC Service Manual 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 P2500XM UC XN UC For details refer to Important symbols for good services DEH P25XM UC XN UC www xiaoyu163 com QQ376315150 9 9...

Page 2: ...during transit the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual if necessary 1 Product safety You should conform to the regulations governing the product safety radio and noise and other regulations and should keep the safety during servicing by following the safety instructions described in this manual CAUTION This servi...

Page 3: ...ND 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 GEN...

Page 4: ...UC DEH P250 XM UC DEH P250 XN UC www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 5: ...P2500 XN UC DEH P25 XM UC DEH P25 XN UC www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 6: ...ble 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 app...

Page 7: ...94 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 CRD3...

Page 8: ...UC 2 2 EXTERIOR www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 9: ...400 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 CAC7...

Page 10: ...2500 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...

Page 11: ...250 XM UC www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 12: ... 1 1 1 2 2 2 2 1 1 1 1 1 2 2 1 3 2 3 CD MECHANISM MODULE www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 13: ...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 ...

Page 14: ...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 2 4 XSI 66 6 80 VDSENS VDSENS ANTENNA FLPILM 9 Q601 83 AVREF 22 adpw V FMRF ANT adj RF adj FM ANT T51 CF52 C...

Page 15: ... 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 FL FL RL RL 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...

Page 16: ... 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 a A a A b A b A b A b A a A a Large size SCH diagram Guide page Detailed page A B A a www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376...

Page 17: ...stors 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 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ...

Page 18: ...IP BUS IP BUS 2 2dBs CD 0dBs FM 31 0dBs AM 31 0dBs IP BUS 2 2dBs CD 0dBs www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 19: ... C CN1901 FM AM TUNER UNIT DETACH SENSE SW EJECT FM 30 30 0dBs AM 30 30 0dBs www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 20: ...AM 5 9dBs IP BUS 10 3dBs CD 10 1dBs FM 6 66dBs AM 6 66dBs IP BUS 9 54dBs CD 9 34dBs www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 21: ...ferentiation 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 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 ht...

Page 22: ...OARD UNIT C C KEYBOARD UNIT www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 23: ...01 1802 CEL1651 CEL1662 LCD1901 CAW1759 CAW1760 D1803 1814 SML 310PT SML 310VT www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 24: ...ervice 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 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 25: ...he 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 5 4 2 9 CN721 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com htt...

Page 26: ...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 Sou...

Page 27: ...OEJ 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 500...

Page 28: ... 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 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 ...

Page 29: ...9403 B CN1950 ANTENNA PRE OUT FM AM TUNER UNIT www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 30: ...A TUNER AMP UNIT IC Q www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 31: ...XM UC A SIDE B www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 32: ...DE A SIDE B C CN1901 A CN831 EJECT 4 2 PANEL UNIT www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 33: ...E AUDIO 1 2 3 4 5 EQ 5 6 7 8 F E D C B A 5 6 7 8 DEH P250 XM UC 4 3 KEYBOARD UNIT www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 34: ...PICKUP UNIT SERVICE P10 HOME M1 SPINDLE MOTOR M2 LOADING CARRIAGE MOTOR CN721 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 35: ...T S10 SIDE B CLAMP DSCSNS 8EJ 12EJ www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 36: ...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 CPV1...

Page 37: ... 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 CK...

Page 38: ...16 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 ...

Page 39: ...1 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 ...

Page 40: ...en 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 res...

Page 41: ... xxMIN xxSEC xx Tracking Open TRK 8xMIN 8xSEC 8x or TRK 9xMIN 9xSEC 9x Tracking Open TRK8x MIN8x SEC8x or TRK9xMIN9xSEC9x 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 SP...

Page 42: ...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 ...

Page 43: ... AC 5 6 7 8 F E D C B A 5 6 7 8 DEH P250 XM UC www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 44: ...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 excessiv...

Page 45: ...y 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 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7...

Page 46: ...mpers 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 ...

Page 47: ...GND 7 BUS L INPUT 8 ASENB 9 BUS R INPUT 10 BUS R INPUT 11 BUS L INPUT 11 10 9 8 7 6 5 4 3 2 1 5 6 7 8 F E D C B A 5 6 7 8 DEH P250 XM UC 7 1 2 CONNECTOR FUNCTION DESCRIPTION www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 co...

Page 48: ...ut 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 ...

Page 49: ...ense 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 30 31 50 51 80 81 100 1 Format Meaning C CMOS IC s marked by are MOS type Be careful in handling them because they are very liable...

Page 50: ... 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 2 3 4 1 2 3 4 F E D C B A DEH P250 XM UC PAL007A www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 3763151...

Page 51: ...ODA 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 49 48 33 32 17 16 1 64 OUT GND VCC PIN 1 2 3 Control Circuit Band Pass AGC Input Demodu lator www xiaoyu163 com...

Page 52: ...orrection 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 L...

Page 53: ...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 fo...

Page 54: ...ver 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 inve...

Page 55: ... connected with a power supply of micro computer 14 DO O data out Data output 15 DGND digital ground Ground of digital block 16 NC non connection Not used 17 VDD_3 3 power supply The power supply for digital block 3 3V 0 2V 18 NC non connection Not used 19 NC non connection Not used 20 NC non connection Not used 21 NC non connection Not used 22 AUDIOGND audio ground Ground of audio block 23 L ch O...

Page 56: ... SEG5 SEG4 SEG3 SEG2 SEG1 SEG0 COM3 COMMON SEGMENT COM2 COM1 COM0 1 2 3 4 1 2 3 4 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 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 co...

Page 57: ...EG10 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 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com...

Page 58: ...n 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 2 3 4 1 2 3 4 F E D C B A DEH P250 XM UC 7 3 OPERATIONAL FLOW CHART www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0...

Page 59: ...ls 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 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 60: ... UC 8 OPERATIONS www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 61: ...250 XM UC www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 62: ...250 XM UC www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 63: ...250 XM UC www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 64: ...250 XM UC www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 65: ...250 XM UC www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 66: ...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 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 htt...

Page 67: ...hat are not connected to speakers Yellow To terminal always supplied with power regardless of ignition switch position Black ground To vehicle metal body Red To electric 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...

Search results

Summary of Contents for DEH-P25

Reviews:

Pioneer DEH-P25, Service Manual, Page: 1 / 67

Search results

Summary of Contents for DEH-P25

Reviews: