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Pioneer DEH-2800 Service Manual
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Pioneer DEH-2800 Service Manual

High power cd/mp3/wma player with fm/am tuner
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HIGH POWER CD/MP3/WMA PLAYER WITH FM/AM TUNER
DEH-2800MP
DEH-2850MP
This service manual should be used together with the following manual(s):
Model No.
Order No.
CX-3164
CRT3583
For details, refer to "Important Check Points for Good Servicing".
PIONEER CORPORATION
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 2005
Mech. Module
S10.5COMP1
CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
DEH-2800MP/XN/UC
/XN/ES
Remarks
ORDER NO.
CRT3554
/XN/UC
K-ZZA. NOV. 2005 Printed in Japan

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  • Page 1 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 2005 K-ZZA.

  • Page 2: Safety Information

    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.
  • Page 3 [Important Check Points for Good Servicing] In this manual, procedures that must be performed during repairs are marked with the below symbol. Please be sure to confirm and follow these procedures. 1. Product safety Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by following the safety instructions described in this manual.

  • Page 4: Table Of Contents

    CONTENTS SAFETY INFORMATION ............................. 2 1. SPECIFICATIONS ............................5 2. EXPLODED VIEWS AND PARTS LIST ......................8 2.1 PACKING(DEH-2800MP/XN/UC)....................... 8 2.2 PACKING(DEH-2850MP/XN/ES) ......................10 2.3 EXTERIOR............................... 12 2.4 CD MECHANISM MODULE........................14 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..................16 3.1 BLOCK DIAGRAM ...........................

  • Page 5: Specifications

    1. SPECIFICATIONS DEH-2800MP/XN/UC...
  • Page 6 DEH-2800MP/XN/UC...
  • Page 7 DEH-2800MP/XN/UC...

  • Page 8: Exploded Views And Parts List

    2. EXPLODED VIEWS AND PARTS LIST OTES : • Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List. • The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.
  • Page 9 PACKING(DEH-2800MP/XN/UC) SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. Polyethylene Bag CEG1173 Accessory Assy CEA4610 Carton CHG5633 Screw Assy CEA6002 Contain Box CHL5633 Fixing Screw(M2 x 4) CBA1994 Protector CHP2664 Screw CBA1650 Protector CHP2868 Polyethylene Bag CEG-127 16-1 Owner's Manual CRD4027...

  • Page 10: Packing(Deh-2850Mp/Xn/Es)

    2.2 PACKING(DEH-2850MP/XN/ES) DEH-2800MP/XN/UC...
  • Page 11 PACKING(DEH-2850MP/XN/ES) SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. Polyethylene Bag CEG-162 Accessory Assy CEA4850 Carton CHG5631 Screw Assy CEA3849 Contain Box CHL5631 ••••• Protector CHP2664 Screw CBA1650 Protector CHP2868 Polyethylene Bag CEG-127 16-1 Owner's Manual CRD4029 Screw CRZ50P090FTC...

  • Page 12: Exterior

    2.3 EXTERIOR DEH-2800MP/XN/UC...
  • Page 13 (1) EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. Screw BSZ26P060FTC Cover CNM6276 Screw BSZ26P100FTC Panel CNS8404 Cord Assy XDE7008 CNV4692 ••••• CNV4728 Cable CDE7985 CNV5576 Case CNB2793 Screw IMS20P030FTB Holder CNC8659 Detach Grille Assy See Contrast table(2) Insulator CNM9145...

  • Page 14: Cd Mechanism Module

    2.4 CD MECHANISM MODULE DEH-2800MP/XN/UC...
  • Page 15 CD MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. Rack CNV8342 CD Core Unit(S10.5COMP1) CWX3176 Connector(CN101) CKS4182 Roller CNV8343 Connector(CN901) CKS5284 Holder CNV8344 Screw BMZ20P025FTC CNV8345 Screw BSZ20P040FTC Guide CNV8347 CNV8348 Screw(M2 x 3) CBA1511 Screw(M2 x 4) CBA1835...

  • Page 16: Block Diagram And Schematic Diagram

    3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM TUNER AMP UNIT 10 9 8 18 19 20 21 FM/AM TUNER UNIT IC 5 IC 3 EEPROM ← 3.3V 5.0V CN401 ANTENNA AM ANT FMRF IC 2 2.5V IC 1 FM ANT 3.3V FMRF...
  • Page 17 RESET IC963 BD4834G CN352 RLch TUNPDO TUNPDI MUTE Q352 TUNPDI TUNPDO TUNPCK TUNPCK VDD REGULATOR TUNPCE1 Q911 TUNPCE2 Q912 SYSTEM CONTROLLER IC601(1/2) PE5518A DALMON CN901 BACKUP SENSE B.UP FUSE BSENS BSENS BACK UP Q931 ASENS ASENS ACC SENSE B.UP POWER AMP 6,20 ELECTRONIC VOLUME/ SOURCE SELECTOR...

  • Page 18: Overall Connection Diagram(Guide Page)

    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". Large size SCH diagram Guide page CN901 Detailed page R602 68K(DEH-2800MP/XN/UC) NM(DEH-2850MP/XN/ES) R601 33K(DEH-2800MP/XN/UC) 47K(DEH-2850MP/XN/ES) STRKEY2 CN1801 NOTE :...
  • Page 19 TUNER AMP UNIT CN901 > CEK1208 10A > 600µH STRKEY2 DEH-2800MP/XN/UC...
  • Page 20 SOURCE DEH-2800MP/XN/UC...
  • Page 21 CDRESET DEH-2800MP/XN/UC...
  • Page 22 DEH-2800MP/XN/UC...
  • Page 23 DEH-2800MP/XN/UC...

  • Page 24: Keyboard Unit

    3.3 KEYBOARD UNIT KEYBOARD UNIT LCD DRIVER DEH-2800MP/XN/UC...
  • Page 25 CN831 LCD : CAW1906(DEH-2800MP/XN/UC) CAW1905(DEH-2850MP/XN/ES) DEH-2800MP/XN/UC...

  • Page 26: Cd Mechanism Module(Guide Page)

    3.4 CD MECHANISM MODULE(GUIDE PAGE) PICKUP UNIT(P10.5)(SERVICE) SWITCHES: CD CORE UNIT(S10.5COMP1) S901:HOME SWITCH..ON-OFF S903:DSCSNS SWITCH..ON-OFF S904:12EJ SWITCH.....ON-OFF S905:8EJ SWITCH....ON-OFF The underlined indicates the switch position. CD DRIVER M1 CXC6742 SPINDLE MOTOR M2 CXC4026 LOADING/CARRIAGE MOTOR DEH-2800MP/XN/UC...
  • Page 27 SIGNAL LINE FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE CD CORE UNIT(S10.5COMP1) + 3.3 V REGULATOR CD3VON(MCKRQ) SRAMLEVEL2 ADENA SRAMLEVEL1 SRAMLEVEL0 (S904) CD CONTROLLER (S905) CN651 DEH-2800MP/XN/UC...
  • Page 28 DEH-2800MP/XN/UC...
  • Page 29 DEH-2800MP/XN/UC...
  • Page 30 DEH-2800MP/XN/UC...
  • Page 31 DEH-2800MP/XN/UC...
  • Page 32 - Waveforms Note : 1. The encircled numbers denote measuring points in the circuit diagram. 2. Reference voltage REFO1(1.65 V) 1 DSCSNS 1 DSCSNS 1 DSCSNS 5 V/div 500 ms/div 5 V/div 500 ms/div 5 V/div 500 ms/div 2 8SNS 4 CLCONT 2 8SNS 5 V/div...
  • Page 33 500 µs/div 9 FIN ! TE $ RFAGC 500 mV/div 200 ms/div 500 mV/div 2 ms/div 1 V/div @ FE $ RFAGC ! TE 500 mV/div 500 mV/div 500 mV/div 8 TIN 500 mV/div Focus Search waveform Track Open waveform 1 Track Jump waveform Ref.: Ref.:...
  • Page 34 500 µs/div 6 SIN $ RFAGC 1 V/div 500 ms/div 1 V/div 7 CIN 8 TIN 500 mV/div 1 V/div 8 TIN ! TE 500 mV/div 1 V/div 9 FIN 1 V/div CD-ROM → CD-DA mode change(Band key) Black dot(800 µm) during play Ref.: Ref.: REFO...
  • Page 35 DEH-2800MP/XN/UC...

  • Page 36: Pcb Connection Diagram

    4. PCB CONNECTION DIAGRAM 4.1 TUNER AMP UNIT TUNER AMP UNIT NOTE FOR PCB DIAGRAMS 1.The parts mounted on this PCB include all necessary parts for several destination. For further information for CORD ASSY respective destinations, be sure to check with the schematic dia- gram.
  • Page 37 SIDE A REAR OUTPUT ANTENNA JACK FRONT DEH-2800MP/XN/UC...
  • Page 38 TUNER AMP UNIT IC151 TEST DEH-2800MP/XN/UC...
  • Page 39 SIDE B IC963 TEST DEH-2800MP/XN/UC...

  • Page 40: Keyboard Unit

    4.2 KEYBOARD UNIT SIDE B SIDE A KEYBOARD UNIT KEYBOARD UNIT R1815 R1814 R1813 R1812 CN831 D1810 R1808 R1809 R1807 DEH-2800MP/XN/UC...
  • Page 41 DEH-2800MP/XN/UC...

  • Page 42: Cd Core Unit(S10.5Comp1)

    4.3 CD CORE UNIT(S10.5COMP1) SIDE A CD CORE UNIT(S10.5COMP1) PICKUP UNIT(P10.5)(SERVICE) CN651 REFO1 HOME CN901 LOADING /CARRIAGE MOTOR SPINDLE MOTOR IC203 IC301 DEH-2800MP/XN/UC...
  • Page 43 SIDE B CD CORE UNIT(S10.5COMP1) 12EJ DSCSNS DEH-2800MP/XN/UC...

  • Page 44: Electrical Parts List

    5. ELECTRICAL PARTS LIST NOTE: 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..The > mark found on some component parts indicates the importance of the safety factor of the part. •...
  • Page 45 Circuit Symbol and No. Part No. Circuit Symbol and No. Part No. R 454 (B,135,127) RS1/16S103J C 151 (B,160,73) CKSRYB224K10 R 455 (B,140,130) RS1/16S153J C 152 (B,160,75) CKSRYB224K10 R 456 (B,140,133) RS1/16S221J C 153 (B,130,69) CKSRYB105K6R3 R 457 (B,99,50) RS1/16S681J C 154 (B,142,74) CKSRYB105K6R3...
  • Page 46 Circuit Symbol and No. Part No. Circuit Symbol and No. Part No. IC 1801 (B,32,100) IC PD6340A D 1803 (A,43,67) LED SML-310PT S 904 (B,42,87) Switch(12EJ) CSN1068 D 1804 (A,43,79) LED SML-310PT S 905 (B,28,88) Switch(8EJ) CSN1068 D 1805 (A,43,91) LED SML-310PT D 1806 (A,28,29) LED...
  • Page 47 Circuit Symbol and No. Part No. C 204 (B,35,48) CEVW220M6R3 C 205 (A,34,63) CKSSYB104K10 C 208 (B,34,54) CKSSYB104K10 C 209 (B,31,57) CKSSYB104K10 C 210 (A,31,66) CKSRYB105K10 C 216 (B,53,77) CKSSYB332K50 C 217 (B,52,79) CKSSYB104K10 C 218 (B,52,76) CKSSYB473K10 C 219 (B,52,74) CKSSYB104K10 C 220...

  • Page 48: Adjustment

    6. ADJUSTMENT 6.1 CD ADJUSTMENT 1) Cautions on adjustments 2) Test mode • In this product the single voltage (3.3V) is used for the This mode is used to adjust the CD mechanism module. regulator. The reference voltage is the REFO1 (1.65V) •...
  • Page 49 - Flow Chart [Key] [4] + [6] + Reset or [4] + [6] + BU + ACC Contents Test Mode In Display [CD] or [SOURCE] Source On [BAND] Power On Power On RF AMP SPINDLE (T.Offset is adjusted) (T.Offset is not adjusted) Gain switching Speed switching 00 00 00...

  • Page 50: Checking The Grating After Changing The Pickup Unit

    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 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.
  • Page 51 Ech → Xch 20mV/div, AC Grating waveform Fch → Ych 20mV/div, AC 0° 30° 45° 60° 75° 90° DEH-2800MP/XN/UC...

  • Page 52: Error Mode

    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 53: System Microcomputer Test Program

    6.4 SYSTEM MICROCOMPUTER TEST PROGRAM - PCL Output In the normal operation mode (with the detachable panel installed, the ACC switched ON, the standby mode cancelled), shift the TESTIN IC601(Pin 15) terminal to H. The clock signal is output from the PCL terminal IC601(Pin 14). The frequency of the clock signal is 786.432 kHz that is one 16th of the fundamental frequency.

  • Page 54: General Information

    7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 DISASSEMBLY Removing the Case (not shown) 1. Remove the Case. CD Mechanism Module Removing the CD Mechanism Module (Fig.1) Remove the four screws. Disconnect the connector and then remove the CD Mechanism Module. Removing the Grille Assy (Fig.1) Release the two latchs and then remove the Grille Assy.
  • Page 55 - How to hold the Mechanism Unit 1. Hold the Upper and Lower Frames. 2. Do not hold the front portion of the Upper Frame, because it is not very solid. Do not squeeze this area. - Removing the Upper and Lower Frames 1.
  • Page 56 - How to remove the CD Core Unit Shorting Solder 1. Apply Shorting Solder to the flexible cable of the Pickup, and disconnect it from the connector. 2. Unsolder the four leads, and loosen the Screw. 3. Remove the CD Core Unit. Caution: When assembling the CD Core Unit, assemble it with the SW in a clamped state so as not to damage it.

  • Page 57: Connector Function Description

    7.1.2 CONNECTOR FUNCTION DESCRIPTION Pin No. Pin No. B.UP B.REMOTE DEH-2800MP/XN/UC...

  • Page 58: Parts

    7.2 PARTS 7.2.1 IC - Pin Functions (PE5518A) Function and Operation Pin No. Pin Name Model select input MODEL1 Not used AVSS Not used AREF1 Display microcomputer data input KYDT Display microcomputer communication data output DPDT Not used TUNPDI PLL data input PLL data output TUNPDO PLL clock output...
  • Page 59 Function and Operation Pin No. Pin Name Crystal oscillator connection pin 69,70 X2,1 IC(VPP) Not used AVDD AVREF1 Signal level input 77,78 Not used Bus slave service request BSRQ STRKEY1 Wired remote control input 1 *PE5518A IC's marked by * are MOS type. Be careful in handling them because they are very liable to be damaged by electrostatic induction.

  • Page 60: Block Diagram

    PML014A - Block Diagram - Pin Layout IN1_L IN1_R IN2_R IN2_L IN3_L IN3_R Vref IN4+_L IN4+_R IN4-_L IN4-_R Front_L Front_R Rear_R Rear_L DATA Vref DATA Selector Input DEH-2800MP/XN/UC...
  • Page 61 NJM2885DL1-33 Thermal Protection Bandgap Reference - 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) Remote control reception input DPDT Display data input...
  • Page 62 - Pin Functions (UPD63763CGJ) Function and Operation Pin No. Pin Name Power supply for digital circuits D.VDD D1.GND Ground for 1.6 V digital circuits reset Input of reset Address bus 12-8 from the microcomputer AB12-8 Address/data bus 7-0 to the microcomputer 9-16 AD7-0 Chip selection...
  • Page 63 Function and Operation Pin No. Pin Name Output of DRAM we Output of DRAM oe(cas) oe(cas) D.GND Ground for digital circuits Input/output of DRAM data0-15 73-88 RDB0-15 Output of DRAM address0-10 89-99 RA0-10 Power supply for digital circuits D.VDD Output of focus drive PWM + Output of focus drive PWM - Output of tracking drive PWM + Output of tracking drive PWM -...
  • Page 64 - Pin Functions (PE5505A) Function and Operation Pin No. Pin Name Format A power supply / Positive power supply(5V) AVREF AVSS A power supply GND testin Chip check test program starting input Not used CLAMP E power supply / Positive power supply EVDD For flash rewriting / L : flash rewriting mode FMODE...
  • Page 65 Function and Operation Pin No. Pin Name Format E2PROM data input/output ROMDATA E2PROM clock output ROMCK ROMCS E2PROM chip selection output Not used 60,61 Not used CLKOUT Spindle lock input LOCK Not used 64-68 BVSS B power supply GND B power supply / Positive power supply BVDD 71-75 Not used...
  • Page 66 - FM/AM Tuner Unit 10 9 8 18 19 20 21 IC 5 IC 3 EEPROM ← 3.3V 5.0V AM ANT FMRF IC 2 2.5V IC 1 FM ANT 3.3V FMRF MIXER, IF AMP DET, FM MPX RF adj ANT adj CF52 IC 4 ←...

  • Page 67: Display

    7.2.2 DISPLAY - LCD(CAW1906)(DEH-2800MP/XN/UC) - LCD(CAW1905)(DEH-2850MP/XN/ES) SEG39 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG33 SEG34 SEG35 SEG36 SEG37 SEG38 DEH-2800MP/XN/UC...

  • Page 68: Operational Flow Chart

    7.3 OPERATIONAL FLOW CHART Power ON AREF1, VDD, AVDD, AVREF1=5 V Pin 7, 68, 74, 75 bsens Pin 64 bsens=L asens Pin 63 asens=L Starts communication with Grille microcomputer. 300 ms swvdd←L Pin 21 300 ms In case of the above signal, the communication Source keys with Grille microcomputer may fail.

  • Page 69: Operations

    8. OPERATIONS DEH-2800MP/XN/UC...
  • Page 70 About the fixing screws for 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. Fixing screw (CBA1994)(DEH-2800MP/XN/UC) (CXX1982)(DEH-2850MP/XN/ES) Fixing screw (CBA1994)(DEH-2800MP/XN/UC) (CXX1982)(DEH-2850MP/XN/ES) DEH-2800MP/XN/UC...
  • Page 71 DEH-2800MP/XN/UC...
  • Page 72 - Jigs List Name Jig No. Remarks Test Disc TCD-782 Checking the grating L.P.F. Checking the grating g (Two pieces) - Grease List Name Grease No. Remarks Grease GEM1024 CD Mechanism Module Grease GEM1045 CD Mechanism Module Before shipping out the product, be sure to clean the following portions by using the prescribed cleaning tools: Portions to be cleaned...

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