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Pioneer DEH-P250 Service Manual

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See also: Operating Manual , Installation Manual
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3 7 63 1515 0
Service
Manual
MULTI-CD CONTROL HIGH POWER CD PLAYER WITH FM/AM TUNER
DEH-P250
DEH-P2500
DEH-P25
TE
L 13942296513
- This service manual should be used together with the following manual(s):
Model No.
CX-3026
www
For details, refer to "Important symbols for good services".
.
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) INC.
PIONEER EUROPE NV
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2002
http://www.xiaoyu163.com
XM/UC, XN/UC
Order No.
Mech. Module Remarks
CRT2944
S10
x
ao
y
i
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
http://www.xiaoyu163.com
8
DEH-P250/XM/UC
XM/UC, XN/UC
Q Q
3
6 7
1 3
CD Mech. Module:Circuit Description, Mech.Description, Disassembly
u163
.
2 9
9 4
2 8
XM/UC, XN/UC
1 5
0 5
8
2 9
9 4
m
co
K-ZZA. OCT. 2002 Printed in Japan
9 9
ORDER NO.
CRT2981
2 8
9 9

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  • Page 1 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 http://www.xiaoyu163.com...

  • Page 2: Safety Information

    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. DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 3: Table Of Contents

    Unplugging and plugging the connectors dur- ing power-on mode may damage the ICs inside the unit. u163 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. DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 4: Specifications

    3 7 63 1515 0 1. SPECIFICATIONS - DEH-P250/XM/UC, DEH-P250/XN/UC L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 5 3 7 63 1515 0 - DEH-P2500/XM/UC, DEH-P2500/XN/UC, DEH-P25/XM/UC, DEH-P25/XN/UC L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 6: Exploded Views And Parts List

    10 Polyethylene Bag CEG-158 * 21-5 Caution Card See Contrast table(2) u163 11 Handle CNC5395 22 Case Assy See Contrast table(2) 12 Holder CND1249 23 Remote Control Unit CXC1265 13 Holder CND1250 14 Bush CNV3930 15 Polyethylene Bag CEG1173 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 7: Http://Www.xiaoyu163.Com 6 7

    3 7 63 1515 0 (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/XM/UC DEH-P2500/XM/UC DEH-P25/XM/UC 17 Carton CHG4958 CHG4959 CHG4960 18 Contain Box...

  • Page 8: Exterior

    2.2 EXTERIOR 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 9 87 Grille Unit See Contrast table(2) 43 Spring CBH2653 2SD2375 Transistor(Q752, 901, 911) 44 Spring CBL1512 89 IC(IC301) PAL007A 45 Holder CND1254 90 IC(IC1902) TSOP4840SB1 u163 91 Holder See Contrast table(2) 92 Screw See Contrast table(2) 93 Choke Coil(L981) CTH1280 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 10 3 7 63 1515 0 (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/XM/UC DEH-P2500/XM/UC DEH-P25/XM/UC 16 Panel CNS6935 CNS7309 CNS7309 35 Holder Unit...
  • Page 11 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 12: Cd Mechanism Module

    2.3 CD MECHANISM MODULE 3 7 63 1515 0 L 13942296513 1GEM1024 2GEM1045 3GEM1035 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 13 85 Screw(M2x5) EBA1028 41 Lever CNC9984 86 Screw JFZ20P020FTC 42 Sheet CNM8134 87 Screw JGZ17P022FTC 43 Collar CNV6906 88 Washer YE15FTC 44 Guide CNV6925 89 Washer YE20FTC u163 45 Arm CNV7198 90 Pickup Unit(Service)(P10) CXX1641 91 Screw IMS26P030FMC DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 14: Block Diagram And Schematic Diagram

    DSCSNS DRIVER MOTOR FLPILM HOME CLMP XTALEN ejectin VDSENS LCOM LOADING/ CARRIAGE LOEJ MOTOR LCOP LOEJ CONT CONT IC 301 BA5996FP DSCSNS CLMP VDSENS Q752 CLAMP 12EJ DSCSNS 3.3V REGULATOR 3R3V IC 701 Q751 NJM2391DL1-33 DETACH SENSE u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 15 CN1901 Q961 BL+B Q962 Q971 SWVDD SWDVDD REMOTE CONTROL SENSOR IC 1902 DPDT OPT IN DPDT TSOP4840SB1 S801 KEY MATRIX KEY DATA DETACH SENSE DPDT LCD DRIVER/ KYDT KYDT KEY CONTROLLER IC 1901 u163 KTDT PD6340A CN1951 CN1950 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 16: Overall Connection Diagram(Guide Page)

    Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. Large size SCH diagram Guide page Detailed page FM:-31.0dBs AM:-31.0dBs R4721 IP-BUS:+2.2dBs CD:0dBs CD:0dBs CN701 IP-BUS:+2.2dBs IP-BUS L 13942296513 R9101 FM(30%):-30.0dBs AM(30%):-30.0dBs R9403 EJECT CN1901 u163 PANEL UNIT DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 17 Decimal points for resistor u163 No differentiation is made between chip resistors and and capacitor fixed values discrete resistors. are expressed as : Symbol indicates a capacitor. ← No differentiation is made between chip capacitors and ← 0.022 R022 discrete capacitors. DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 18 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 19 3 7 63 1515 0 DETACH SENSE SW L 13942296513 u163 FM/AM TUNER UNIT DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 20 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 21 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 22: Keyboard Unit

    3 7 63 1515 0 3.3 KEYBOARD UNIT KEYBOARD UNIT L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 23 3 7 63 1515 0 L 13942296513 P250 P2500 CAW1760 LCD1901 CAW1759 D1803-1814 SML-310PT SML-310VT IL1801,1802 CEL1651 CEL1662 R1805,1808,1811,1814 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 24: Cd Mechanism Module

    3.4 CD MECHANISM MODULE 3 7 63 1515 0 Pickup Unit(Service)(P10) L 13942296513 MOTOR DRIVER SPINDLE MOTOR M1 CXB6007 LOADING/CARRIAGE MOTOR M2 CXB8933 3.3V u163 REGULATOR DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 25 S902 : CLAMP SWITCH..ON-OFF S903 : DSCSNS SWITCH..ON-OFF RF AMP / SERVO / DSP S904 : 12EJ SWITCH..ON-OFF S905 : 8EJ SWITCH..ON-OFF DAC / LPF The underlined indicates the switch position. L 13942296513 CD CORE UNIT (S10) CN721 CN??? u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 26 200ms/div 500mV/div 2ms/div 1V/div 500µs/div ! FE # RFAGC 0 TE 500mV/div 500mV/div 500mV/div 7 TIN 500mV/div Focus Search When "Tracking Open" 1 Track Jump Ref.: Ref.: Ref.: u163 REFO REFO REFO Mode: Mode: Mode: TEST TEST TEST DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 27 5V/div 200ms/div 5V/div 200ms/div % ROUT 2 CLCONT 2 CLCONT 1V/div 5V/div 5V/div 3 LOEJ 3 LOEJ 5V/div 5V/div Analog Audio When "Eject"(12cm CD) When "Eject"(8cm CD) Ref.: Ref.: Ref.: AGND Mode: Mode: Mode: Normal Normal Normal u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 28: Pcb Connection Diagram

    For further information for respective destinations, be sure to check with the schematic dia- gram. 2.Viewpoint of PCB diagrams WIRED Capacitor Connector IP-BUS REMOTE SIDE A SIDE B Chip Part P.C.Board L981 L 13942296513 R9101 R4721 CN701 u163 DETACH SENSE DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 29 3 7 63 1515 0 SIDE A IC,Q PRE OUT ANTENNA L 13942296513 u163 CN1950 FRONT DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 30 3 7 63 1515 0 TUNER AMP UNIT IC,Q L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 31 3 7 63 1515 0 SIDE B L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 32: Panel Unit

    4.2 PANEL UNIT 3 7 63 1515 0 SIDE A PANEL UNIT CN1901 EJECT L 13942296513 SIDE B PANEL UNIT CN831 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 33: Keyboard Unit

    4.3 KEYBOARD UNIT 3 7 63 1515 0 SIDE A KEYBOARD UNIT SIDE B KEYBOARD UNIT IC,Q IC,Q CN1951 ↓ L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 34: Cd Mechanism Module

    4.4 CD MECHANISM MODULE 3 7 63 1515 0 SIDE A CD CORE UNIT(S10) LOADING /CARRIAGE MOTOR SPINDLE MOTOR L 13942296513 CN721 CN??? HOME PICKUP UNIT (SERVICE)(P10) u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 35 3 7 63 1515 0 SIDE B CD CORE UNIT(S10) 12EJ DSCSNS CLAMP L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 36: Electrical Parts List

    RS1/16S122J Diode 1SR154-400 RS1/16S681J RS1/16S681J Diode 1SR154-400 Diode HZS7L(C3) RS1/16S681J Diode HZS7L(A1) RS1/16S103J Diode MPG06G-6415G50 RS1/16S473J Diode MPG06G-6415G50 u163 RS1/16S102J RS1/16S102J ZNR 401 Arrester DSP-201M Inductor LCTA2R2J2520 RS1/16S473J Ferri-Inductor LAU4R7K RS1/16S102J Inductor LAU1R0K RS1/16S473J Inductor LAU1R0K RS1/16S104J RS1/16S104J DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 37 RD1/4PU221J CKSYB475K10 RS1/16S223J CKSRYB105K10 RS1/16S821J CCSRCH200J50 RS1/16S821J CCSRCH200J50 RS1/16S0R0J CEJQ4R7M35 RS1/16S223J CKSRYB104K25 RS1/16S152J CCSRCH101J50 RD1/4PU152J CCSRCH470J50 RS1/16S223J CKSRYB104K25 RD1/4PU1R8J CKSRYB105K10 RS1/16S104J CKSRYB473K50 RS1/16S473J CKSRYB224K10 RS1/16S103J CKSRYB102K50 RS1/16S473J CEJQ101M16 RS1/16S472J CEJQ470M10 RS1/16S223J u163 CKSRYB103K50 RS1/16S182J CKSRYB472K50 RD1/4PU1R0J 470µF/16V CCH1331 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 38 CEJQ220M10 CKSRYB103K50 MISCELLANEOUS CKSYB475K10 IC 1901 PD6340A CKSRYB104K25 IC 1902 TSOP4840SB1 CKSRYB473K50 1801 NSSW440-9159 1802 NSSW440-9159 Unit Number : CWM8635(DEH-P250/XM/UC, DEH- 1803 SML-310VT P250/XN/UC, DEH-P2500/XM/UC, DEH-P2500/XN/UC) Unit Name : Keyboard Unit 1804 SML-310VT 1805 SML-310VT MISCELLANEOUS 1806 SML-310VT 1807 SML-310VT...
  • Page 39 CCH1504 CKSRYB224K16 RS1/16S103J CKSRYB104K16 RS1/16S103J 10µF/6.3V CCH1470 RS1/16S183J RS1/16S822J Miscellaneous Parts List RS1/16S183J Pickup Unit(Service)(P10) CXX1641 RS1/16S822J Motor Unit(SPINDLE) CXB6007 RS1/16S183J Motor Unit(LOADING/CARRIAGE) CXB8933 RS1/16S183J RS1/16S183J RS1/16S183J RS1/16S102J RS1/16S102J RS1/16S102J RS1/16S221J RS1/16S221J u163 RS1/16S221J RS1/16S221J RS1/16S101J RS1/16S101J RS1/16S0R0J DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 40: Adjustment

    • 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. u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 41 *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 u163 Forcus Mode switching / Tracking Close / CRG, TR Jump switching DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 42: Checking The Grating After Changing The Pickup Unit

    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". u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 43 3 7 63 1515 0 Ech → Xch 20mV/div, AC Grating waveform Fch → Ych 20mV/div, AC 0° 30° 45° 60° L 13942296513 75° 90° u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 44: Error Mode

    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. u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 45: General Information

    Grille Assy Fig.1 Removing the Tuner Amp Unit (Fig.2) Remove the screw. Remove the three screws. Straight the tabs at three locations indicated. Remove the screw and then remove the Tuner Amp Unit. u163 Tuner Amp Unit Fig.2 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 46 4. While releasing from the hook of the inner holder, lift the end of the feed screw. Feed Screw Caution: In assembling, move the planet gear to the load/eject position before setting the feed screw in the inner holder. u163 Inner Holder Planet Gear DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 47: Connector Function Description

    7.1.2 CONNECTOR FUNCTION DESCRIPTION 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 48: Parts

    CD : LSI reset control output u163 xstb CD LSI strobe output ASENBO IP-BUS : Slave power supply control output EMUTE E.VOL : Mute control output TEST TUNER : Signal level input STRKEY1 Steering remote controller input DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 49 PLL chip enable output Beep tone output L 13942296513 * PE5341C 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 CMOS BD4834G Vref u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 50 OUT2- Offset Protector; STBY Detection Thermal OUT2+ OUT1- Offset P-GND1 Detection OUT1+ Protector; S-GND Short circuit L 13942296513 AC-GND OUT3+ Offset P-GND3 Detection OUT3- OUT4+ Offset MUTE Detection OUT4- P-GND4 SWITCH Protector; Over current limit Mute circuit u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 51 25,26 KDT2,3 Key data input Not used KST4 Key strobe output 29-32 Not used 33-55 SEG35-13 LCD segment output Power supply 57-64 SEG12-5 LCD segment output *PD6340A L 13942296513 TSOP4840SB1 Control Input Circuit Band Demodu- lator Pass u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 52 Output of focus drive PWM Output of tracking drive PWM Output of tracking drive PWM u163 Output of thread drive PWM Output of thread drive PWM Output of spindle drive PWM Output of spindle drive PWM DGND Ground for digital circuits DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 53 Connected to the capacitor for output of REFOUT Reversal input of FE L 13942296513 Output of FE ADCIN TEST Reversal input of TE Output of TE AGND Ground for the analog system PWMSW Servo PWM mode switching * UPD63712GC u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 54 Input pin for preamplifier for thread OPOUT3 CH3 preamplifier output pin OPIN3(-) Input pin for inverting input for CH3 preamplifier OPIN3(+) Input pin for non-inverting input for CH3 preamplifier L 13942296513 PREVCC PreVcc BA5996FP NJM2391DL1-33 VREF Over current Thermal protector Shutdown u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 55 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 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 56: Display

    7.2.2 DISPLAY 3 7 63 1515 0 - LCD(CAW1759)(DEH-P250/XM/UC, DEH-P250/XN/UC, DEH-P2500/XM/UC, DEH-P2500/XN/UC) L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 57 - LCD(CAW1760)(DEH-P25/XM/UC, DEH-P25/XN/UC) 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 58: Operational Flow Chart

    In case of the above signal, the communication with Grille microcomputer may fail. Source keys If the time interval is not 300msec, the oscillator operative may be defective. Source ON SYSPW←H u163 Pin 21 Completes power-on operation. (After that, proceed to each source operation) DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 59: Cleaning

    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 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

  • Page 60: Operations

    8. OPERATIONS 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 61 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 62 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 63 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 64 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 65 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 66 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...
  • Page 67 3 7 63 1515 0 L 13942296513 u163 DEH-P250/XM/UC http://www.xiaoyu163.com...

This manual is also suitable for:

Deh-p2500Deh-p25Deh-p2550

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