Pioneer DEH-1450 Service Manual
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3 7 63 1515 0
Service
Manual
HIGH POWER CD PLAYER WITH FM/AM TUNER
DEH-1450
DEH-1450B
- This service manual should be used together with the following manual(s):
Model No.
TE
L 13942296513
CX-977
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST .......................2
4. PCB CONNECTION DIAGRAM ................................22
5. ELECTRICAL PARTS LIST ........................................30
6. ADJUSTMENT..........................................................34
www
.
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) INC.
PIONEER EUROPE NV
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2001
http://www.xiaoyu163.com
Order No.
Mech. Module Remarks
CRT2624
S9
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
8
DEH-1450/XM/ES
XM/ES
Q Q
3
6 7
1 3
CD Mech. Module:Circuit Description, Mech.Description, Disassembly
7. GENERAL INFORMATION .......................................38
7.1 DIAGNOSIS ........................................................38
7.1.1 DISASSEMBLY .........................................38
7.1.2
7.2 PARTS .................................................................42
7.2.1 IC................................................................42
7.2.2 DISPLAY ....................................................50
7.3 OPERATIONAL FLOW CHART ...........................51
u163
8. OPERATIONS AND SPECIFICATIONS.....................52
.
2 9
9 4
2 8
XM/ES
1 5
0 5
8
2 9
9 4
m
co
K-ZZD. OCT. 2001 Printed in Japan
9 9
ORDER NO.
CRT2756
2 8
9 9
.......41

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Summary of Contents for Pioneer DEH-1450

  • Page 1: Table Of Contents

    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 2001 K-ZZD. OCT. 2001 Printed in Japan http://www.xiaoyu163.com...
  • Page 2: Safety Information

    DEH-1450,1450B 3 7 63 1515 0 - CD Player Service Precautions 3. Please checking the grating after changing the pickup 1. For pickup unit(CXX1480) handling, please refer unit(see page 35). to"Disassembly"(see page 38). 4. In this product, because the memory capacity of the...
  • Page 3: Http://Www.xiaoyu163.Com

    CXB3520 8 Handle CNC5395 9 Bush CNV3930 10 Polyethylene Bag CEG-162 (2) CONTRAST TABLE DEH-1450/XM/ES and DEH-1450B/XM/ES are constructed the same except for the following: Part No. Mark No. Symbol and Description DEH-1450/XM/ES DEH-1450B/XM/ES 12 Carton CHG4487 CHG4490 L 13942296513...
  • Page 4: Http://Www.xiaoyu163.Com 3

    DEH-1450,1450B 2.2 EXTERIOR 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 5: Deh-1450,1450B

    69 Sheet See Contrast table(2) 35 Button(SELECT) CAC7181 70 Panel CNS6344 (2) CONTRAST TABLE DEH-1450/XM/ES and DEH-1450B/XM/ES are constructed the same except for the following: Part No. Mark No. Symbol and Description DEH-1450/XM/ES DEH-1450B/XM/ES 31 Detach Grille Assy CXB8036 CXB8038...
  • Page 6: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 2.3 CD MECHANISM MODULE L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 7: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 - CD MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Control Unit CWX2481 46 Gear CNV6320 2 Connector(CN701) CKS1959 47 Arm CNV6322 3 Connector(CN101) CKS3486...
  • Page 8: Block Diagram And Schematic Diagram

    DEH-1450,1450B 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3 7 63 1515 0 3.1 BLOCK DIAGRAM TUNER AMP UNIT FM/AM TUNER UNIT FM/AM 1ST IF 10.7MHz MPXREF 41kHz AMRF T51 Q51 CF51 CF52 CF53 ANTENNA CN402 AMDET AMANT L ch...
  • Page 9: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 CN351 REAR L CH Q 351 SYSTEM CONTROLLER Q359 IC 610 (1/2) PE5262A VDD REGULATOR Q913 TUNPCE PCE1 TUNPCK TUNPCE2 PCE2 TUNPDO PDIO VCC REGULATOR TUNPDI Q911 LOCL Q910 CN901 SYSPW BACKUP Q912...
  • Page 10: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) 3 7 63 1515 0 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 ELECTRONIC...
  • Page 11: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 TUNER AMP UNIT VOLUME FM(100%):+3.6dBs AM(30%):-6.9dBs CD:+9.4dBs CD:+10.2dBs PRE OUT MUTE EM CONTROLLER L 13942296513 POWER AMP FM(100%):+29.6dBs AM(30%):+19.1dBs CD:+36.2dBs CEK1136 > BACK UP B.REM VDD REGULATOR VCC REGULATOR SYS+B REGULATOR BACK UP SENSE...
  • Page 12: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 13: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 14: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 15: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 16: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 3.3 KEYBOARD UNIT KEYBOARD UNIT LCD DRIVER L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 17: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 CN751 IL1700,1701:14V 40mA L 13942296513 CLOCK LOC/BSM DEH-1450/XM/ES DEH-1450B/XM/ES D1702-1708 SML-310PT SML-310VT IL1700,1701 CEL1651 CEL1662 CAW1723 CAW1688 R1711 R1715,1719 u163 http://www.xiaoyu163.com...
  • Page 18: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3.4 CD MECHANISM MODULE 3 7 63 1515 0 CONTROL UNIT PICKUP UNIT(SERVICE)(P9) RF AMP CN101 L 13942296513 ACT/MOTOR DRIVER SPINDLE M1 CXB6007 LOADING/CARRIAGE M2 CXB5903 u163 5V REGULATOR http://www.xiaoyu163.com...
  • Page 19: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 SERVO CONTROL/DSP/DAC/LPF L 13942296513 16.934MHz SWITCHES: CONTROL 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.
  • Page 20: Http://Www.xiaoyu163.Com

    DEH-1450,1450B Note:1. The encircled numbers denote measuring pointes in the circuit diagram. 3 7 63 1515 0 2. Reference voltage VREF:2.1V - Waveforms 5 CH1:FD 1 CH1:DSCSNS 5V/div. 1 CH1:DSCSNS 5V/div. 500mV/div. 6 CH2:FOK 2 CH2:CLCONT 2 CH2:CLCONT 5V/div.
  • Page 21: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 % CH1:RFO 5 CH1:FD % CH1:RFO 1V/div. 1V/div. 1V/div. 200ms/div. ^ CH2:FOP 0 CH2:TE 0 CH2:TE 500µs/div. 1V/div. 5ms/div. 2V/div. 500mV/div. ! CH3:TD ! CH3:TD 1V/div. 1V/div. With no disk inserted 32 Track Jump During "Focus Close"...
  • Page 22: Pcb Connection Diagram

    DEH-1450,1450B 4. PCB CONNECTION DIAGRAM 3 7 63 1515 0 4.1 TUNER AMP UNIT TUNER AMP UNIT CORD ASSY NOTE FOR PCB DIA- GRAMS 1. The parts mounted on this PCB include all nec- essary parts for several destination.
  • Page 23: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 SIDE A ANTENNA JACK L 13942296513 u163 FRONT CN1800 http://www.xiaoyu163.com...
  • Page 24: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 TUNER AMP UNIT L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 25 DEH-1450,1450B 3 7 63 1515 0 SIDE B L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 26: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 4.2 KEYBOARD UNIT 3 7 63 1515 0 SIDE A SIDE B KEYBOARD UNIT KEYBOARD UNIT ← L 13942296513 CN751 u163 http://www.xiaoyu163.com...
  • Page 27: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 28: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 4.3 CD MECHANISM MODULE 3 7 63 1515 0 SIDE A CONTROL UNIT L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 29: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 SIDE B CONTROL UNIT L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 30: Electrical Parts List

    DEH-1450,1450B 3 7 63 1515 0 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..
  • Page 31: Http://Www.xiaoyu163.Com

    RS1/16S472J CEJQ101M16 RS1/16S102J CEJQ101M10 RS1/16S473J CKSRYB473K50 RS1/16S0R0J CKSRYB103K50 RS1/16S0R0J 470µF/16V CCH1331 RS1/16S0R0J CKSQYB473K50 RS1/16S152J CKSRYB103K50 RS1/16S0R0J Unit Number : CWM7957(DEH-1450/XM/ES) Unit Name : Keyboard Unit CAPACITORS MISCELLANEOUS CEJQ470M10 CEJQ100M16 IC 1800 PD6340A CKSRYB104K25 1700 NSSW440-9159 CKSRYB105K6R3 1701 NSSW440-9159 CKSRYB104K25 u163...
  • Page 32: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- 1704 SML-310PT 1709 RS1/16S151J 1705 SML-310PT 1710 RS1/16S151J 1706 SML-310PT 1711 RS1/16S121J 1707...
  • Page 33: Http://Www.xiaoyu163.Com

    DEH-1450,1450B 3 7 63 1515 0 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S331J CKSRYB221K50 RS1/16S0R0J CKSRYB153K25 RS1/16S332J CKSRYB103K50 RS1/16S684J CEV101M10 RS1/16S103J CKSRYB104K16 RS1/16S103J CKSRYB104K16 RS1/16S183J 10µF/10V...
  • Page 34: Adjustment

    DEH-1450,1450B 3 7 63 1515 0 6. ADJUSTMENT 6.1 CD ADJUSTMENT 1) Precautions 2) Test Mode • This unit uses a single power supply (+5V) for the reg- This mode is used for adjusting the CD mechanism ulator. The signal reference potential, therefore, is module of the device.
  • Page 35: Checking The Grating After Changing The Pickup Unit

    DEH-1450,1450B 3 7 63 1515 0 6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT • Note : The grating angle of the PU unit cannot be adjusted after the PU unit is changed. The PU unit in the CD mecha- nism 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.
  • Page 36 DEH-1450,1450B 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 http://www.xiaoyu163.com...
  • Page 37: Error Mode

    DEH-1450,1450B 3 7 63 1515 0 6.3 ERROR MODE - 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.
  • Page 38: General Information

    DEH-1450,1450B 7. GENERAL INFORMATION 3 7 63 1515 0 7.1 DIAGNOSIS 7.1.1 DISASSEMBLY Removing the Case (not shown) 1. Remove the Case. CD Mechanism Module Panel Assy (Fig.1) Take the two stoppers off the Chassis and then remove the Panel Assy.
  • Page 39 DEH-1450,1450B 3 7 63 1515 0 - 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. Do not squeeze. - How to remove the Top and Bottom Frame 1.
  • Page 40 DEH-1450,1450B 3 7 63 1515 0 - How to remove the Control Unit 1. Give jumper-solder treatment to the Flexible Wire of Jumper-Solder the Pickup unit, then remove the wire from the Connector. Control Unit 2. Remove all 4 points of solder-treatment on the Lead Wire.
  • Page 41: Connector Function Description

    DEH-1450,1450B 3 7 63 1515 0 7.1.2 CONNECTOR FUNCTION DESCRIPTION ANTENNA PRE OUT L 13942296513 1. GND 2. BACK UP 3. ACC 4. NC 5. NC 6. B.REM 7. NC 8. NC 9. RL- 10. FL- 11. RL+ 12. FL+ 13.
  • Page 42: Parts

    DEH-1450,1450B 3 7 63 1515 0 7.2 PARTS 7.2.1 IC Pin Functions(PE5262A) Pin No. Pin Name Format Function and Operation MODEL1 Model select input Not used AVSS A/D GND FM stereo input SD input AVREF1 A/D converter reference voltage...
  • Page 43 DEH-1450,1450B 3 7 63 1515 0 Pin No. Pin Name Format Function and Operation Power supply Crystal oscillator connection pin Crystal oscillator connection pin IC(VPP) Connect to GND Not used TESTIN Test program mode input AVDD Positive power supply terminal for analog circuit...
  • Page 44 DEH-1450,1450B 3 7 63 1515 0 - Pin Functions (PD6340A) Pin No. Pin Name Function and Operation SEG4-0 LCD segment output COM3-0 LCD common output VLCD LCD drive power supply 11-14 KST3-0 Key strobe output 15,16 KDT0,1 Key data input (analogue input)
  • Page 45 DEH-1450,1450B 3 7 63 1515 0 - Pin Functions(TA2153FN) Pin No. Pin Name Function and Operation Power supply voltage terminal RFGC RF amplitude adjustment control signal terminal GMAD AGC amplifier frequency characteristic adjustment terminal Main beam amplifier input terminal...
  • Page 46 DEH-1450,1450B 3 7 63 1515 0 - Pin Functions(TC9495F2) Pin No. Pin Name Function and Operation TESTO Test mode terminal Replay speed flag output terminal uhso Replay speed flag output terminal EMPH Emphasis flag output terminal for sub code Q data LRCK Channel clock (44.1 kHz) output terminal...
  • Page 47 DEH-1450,1450B 3 7 63 1515 0 Pin No. Pin Name Function and Operation 58-61 FLGA-D External flag output terminal for internal signal monitor Digital + power supply terminal (5 V) Digital ground terminal RF amplifier gain switching terminal Not used...
  • Page 48 DEH-1450,1450B 3 7 63 1515 0 - Pin Functions(BA5996FM) Pin No. Pin Name Function and Operation Input pin for reference voltage OPIN2(+) Input pin for non-inverting input for CH2 preamplifier OPIN2(-) Input pin for inverting input for CH2 preamplifier...
  • Page 49 DEH-1450,1450B 3 7 63 1515 0 - FM/AM Tuner Unit FM/AM 1ST IF 10.7MHz MPXREF 41kHz AMRF T51 Q51 CF51 CF52 CF53 AMDET AMANT L ch IC 2 FM MPX R ch ANT ADJ COMP MIXER, IF AMP, DET.
  • Page 50: Display

    DEH-1450,1450B 3 7 63 1515 0 7.2.2 DISPLAY - CAW1723(DEH-1450/XM/ES), CAW1688(DEH-1450B/XM/ES) L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 51: Operational Flow Chart

    DEH-1450,1450B 3 7 63 1515 0 7.3 OPERATIONAL FLOW CHART Power ON VDD=5V Pin 68 bsens Pin 63 BSENS=L asens Pin 64 ASENS=L dsens Pin 65 L 13942296513 DSENS=L ADPW←H Pin 66 Starts communication with Grille microcomputer. 300ms swvdd←L...
  • Page 52: Operations And Specifications

    DEH-1450,1450B 3 7 63 1515 0 8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATIONS What’s what L 13942296513 1 VOLUME button 7 LOUDNESS button Press to increase or decrease the volume. Press to switch loudness function on or off. 2 CD EJECT button 8 SOURCE button Press to eject a CD from your built-in CD player.
  • Page 53 DEH-1450,1450B 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 54 DEH-1450,1450B 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 55 DEH-1450,1450B 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 56 DEH-1450,1450B 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 57: Specifications

    DEH-1450,1450B 3 7 63 1515 0 8.2 SPECIFICATIONS General CD player Power source ....14.4 V DC (10.8 – 15.1 V System ......Compact disc audio allowable) system Grounding system ..Negative type Usable discs ....Compact disc Max. current consumption Signal format: .........
  • Page 58 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 2001 K-ZZD. NOV. 2001 Printed in Japan http://www.xiaoyu163.com...
  • Page 59 DEH-1450 3 7 63 1515 0 EXTERIOR(Page 4) - EXTERIOR SECTION PARTS LIST Part No. Mark No. Symbol and Description DEH-1450/XM/ES DEH-1450/XR/ES 13 Tuner Amp Unit CWM7944 HWM0069 29 Holder Unit CXB6681 CNC8659(Holder) 31 Detach Grille Assy CXB8036 HXB0045...

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