Pioneer DEH-1550 XU Service Manual
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Pioneer DEH-1550 XU Service Manual

High power cd player with fm/am tuner
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See also: Operating Manual , Installation Manual
Service
Manual
HIGH POWER CD PLAYER WITH FM/AM TUNER
DEH-1550
DEH-1550B
- This service manual should be used together with the following manual(s):
Model No.
Order No.
CX-3026
CRT2944
For details, refer to "Important symbols for good services".
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) INC.
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
XU/ES
Mech. Module Remarks
S10
CD Mech. Module:Circuit Description, Mech.Description, Disassembly
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
DEH-1550/XU/ES
XU/ES
ORDER NO.
CRT2970
K-ZZU. NOV. 2002 Printed in Japan

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Summary of Contents for Pioneer DEH-1550 XU

  • 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-ZZU. NOV. 2002 Printed in Japan...

  • Page 2: Safety Information

    SAFETY INFORMATION 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: Table Of Contents

    CONTENTS SAFETY INFORMATION ............................2 1. SPECIFICATIONS ...............................4 2. EXPLODED VIEWS AND PARTS LIST........................5 2.1 PACKING................................5 2.2 EXTERIOR................................6 2.3 CD MECHANISM MODULE ..........................8 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ....................10 3.1 BLOCK DIAGRAM ..............................10 3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) ..................12 3.3 KEYBOARD UNIT ...............................18 3.4 CD MECHANISM MODULE ..........................20 4.

  • Page 4: Specifications

    1. SPECIFICATIONS DEH-1550/XU/ES...

  • Page 5: Exploded Views And Parts List

    2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKING NOTE: - Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List. ∇ mark on the product are used for disassembly. - Screws adjacent to - For the applying amount of lubricants or glue, follow the instructions in this manual.

  • Page 6: Exterior

    2.2 EXTERIOR DEH-1550/XU/ES...
  • Page 7 - EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ26P060FTC LCD(LCD1801)(DEH-1550B) CAW1734 2 Screw BSZ30P060FTC 46 Connector(CN1801) CKS3580 3 Screw BSZ30P200FTC 47 Holder CNC9617 4 Cord Assy CDE7060 48 Sheet CNM7932 5 Cable CDE7113 49 Lens CNV7060...

  • Page 8: Cd Mechanism Module

    2.3 CD MECHANISM MODULE DEH-1550/XU/ES...
  • Page 9 - CD MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 CD Core Unit(S10) CWX2708 48 Holder CNV7202 2 Connector(CN101) CKS4182 49 Arm CNV7203 3 Connector(CN701) CKS4188 50 Gear CNV7207 4 Screw BMZ20P035FTC 5 Screw BSZ20P040FTC 51 Gear...

  • Page 10: Block Diagram And Schematic Diagram

    3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM TUNER AMP UNIT 10 9 8 IC 5 IC 3 EEPROM 3.3V 5.0V ANTENNA CN402 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...
  • Page 11 CN352 REAR L CH TUNPCE2 Q 352 TUNPCE1 TUNPDI TUNPDO TUNPCK Q453 LDET VDD REGULATOR Q911 SYS 8V REGULATOR Q922 Q921 CN901 SYSTEM CONTROLLER SYSPW BACKUP IC 601 (1/2) Q923 PE5330A BACK UP POWER AMP VST/ VCK/ VDT IN2_L ELECTRONIC VOLUME IC 302 Frontout_L IN3_L...

  • Page 12: 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 CN701 Guide page Detailed page CN1801 DEH-1550/XU/ES...
  • Page 13 TUNER AMP UNIT REAR L CH REAR R CH CEK1136 > NOTE : Symbol indicates a resistor. Decimal points for resistor No differentiation is made between chip resistors and and capacitor fixed values discrete resistors. are expressed as : ← Symbol indicates a capacitor.
  • Page 14 FM/AM TUNER UNIT DEH-1550/XU/ES...
  • Page 15 DEH-1550/XU/ES...
  • Page 16 DEH-1550/XU/ES...
  • Page 17 DEH-1550/XU/ES...

  • Page 18: Keyboard Unit

    3.3 KEYBOARD UNIT DEH-1550/XU/ES...
  • Page 19 KEYBOARD UNIT LOUD CLOCK 40mA, 14V LOC/BSM DEH-1550/XU/ES...

  • Page 20: Cd Mechanism Module

    3.4 CD MECHANISM MODULE Pickup Unit(Service)(P10) MOTOR DRIVER SPINDLE MOTOR M1 CXB6007 LOADING/CARRIAGE MOTOR M2 CXB8933 3.3V REGULATOR DEH-1550/XU/ES...
  • Page 21 SIGNAL LINE FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE SWITCHES: CD CORE UNIT S901 : HOME SWITCH..ON-OFF 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.
  • Page 22 - Waveforms Note : 1. The encircled numbers denote measuring points in the circuit diagram. 2. Reference voltage REFO1(1.65V) 1 DSCSNS 1 DSCSNS 5 SIN 5V/div 500ms/div 5V/div 500ms/div 1V/div 2s/div 2 CLCONT 2 CLCONT 6 CIN 5V/div 5V/div 500mV/div 3 LOEJ 3 LOEJ 7 TIN...
  • Page 23 # RFAGC # RFAGC # RFAGC 1V/div 500ms/div 1V/div 5ms/div 1V/div 500µs/div 0 TE 0 TE 7 TIN 500mV/div 500mV/div 1V/div 7 TIN 7 TIN 0 TE 500mV/div 500mV/div 1V/div 8 FIN 1V/div 32 Track Jump 100(32x3) Track Jump When reproducing black dots(1mm) Ref.: Ref.: Ref.:...

  • Page 24: Pcb Connection Diagram

    4. PCB CONNECTION DIAGRAM 4.1 TUNER AMP UNIT NOTE FOR PCB DIAGRAMS TUNER AMP UNIT 1.The parts mounted on this PCB include all necessary parts for CORD ASSY several destination. For further information for respective destinations, be sure to check with the schematic dia- gram.
  • Page 25 SIDE A ANTENNA FRONT DEH-1550/XU/ES...
  • Page 26 TUNER AMP UNIT DEH-1550/XU/ES...
  • Page 27 SIDE B DEH-1550/XU/ES...

  • Page 28: Keyboard Unit

    4.2 KEYBOARD UNIT SIDE B SIDE A KEYBOARD UNIT KEYBOARD UNIT CN831 DEH-1550/XU/ES...
  • Page 29 DEH-1550/XU/ES...

  • Page 30: Cd Mechanism Module

    4.3 CD MECHANISM MODULE SIDE A CD CORE UNIT(S10) LOADING /CARRIAGE MOTOR SPINDLE MOTOR CN651 HOME PICKUP UNIT (SERVICE)(P10) DEH-1550/XU/ES...
  • Page 31 SIDE B CD CORE UNIT(S10) 12EJ DSCSNS CLAMP DEH-1550/XU/ES...

  • Page 32: Electrical Parts List

    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.
  • Page 33 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S0R0J CKSRYB103K50 RD1/4PU821J CKSRYB473K50 RD1/4PU122J CEJQ100M16 RS1/16S103J CKSRYB334K10 RS1/16S473J CKSRYB103K50 RS1/16S104J CEJQ220M16 RD1/4PU102J CKSRYB473K50 RS1/16S472J CEJQ101M10 RS1/16S473J Unit Number : CWM8578(DEH-1550) RS1/16S223J : CWM8579(DEH-1550B) RS1/16S104J...
  • Page 34 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Diode 1SR154-400 100µF/6.3V CCH1505 Ceramic Resonator 16.934MHz CSS1603 CKSRYB104K16 Spring Switch(HOME) CSN1051 Spring Switch(CLAMP) CSN1051 CKSRYB104K16 Spring Switch(DSCSNS) CSN1052 CKSRYB104K16 CKSRYB104K16 Spring Switch(12EJ) CSN1051...

  • Page 35: 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 36: 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 37 Ech → Xch 20mV/div, AC Grating waveform Fch → Ych 20mV/div, AC 0° 30° 45° 60° 75° 90° DEH-1550/XU/ES...

  • Page 38: 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 39: General Information

    7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 DISASSEMBLY Removing the Case (not shown) 1. Remove the Case. Removing the CD Mechanism Module (Fig.1) CD Mechanism Module Remove the four screws. Disconnect the connector and then remove the CD Mechanism Module. Removing the Grille Assy (Fig.1) Release the two latches and then remove the Grille Assy.
  • Page 40 - How to assemble Keyboard Unit 1. Assemble them in order from "1" to "8". (See the figure below.) 2. After that, bend the crows (7 in total) until they get the right angles with the marks printed on "8". Note) If "5"...
  • Page 41 - 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. - Removing the Upper and Lower Frames 1. With a disc clamped, remove the four springs (A), Upper Frame the two springs (B), the two springs (C), and the four screws.
  • Page 42 Bevel Gear Bracket - Removing the CD Core Unit(S10) 1. Apply shorting solder to the Pickup flexible cable. Disconnect the cable. 2. Remove the solder from the four leads, and loosen Solder the screw. 3. Remove the CD core unit(S10). Shorting Caution: When assembling the CD core unit(S10), set Solder...
  • Page 43 - Removing the Pickup Unit Washer 1. Set the mechanism to the clamp mode. Pickup Lock Arm 2. Remove the lead wires from the inner holder. Change 3. Remove the two washers, styling holder, change Styling Holder arm, and pickup lock arm. 4.

  • Page 44: Connector Function Description

    7.1.2 CONNECTOR FUNCTION DESCRIPTION 1 0 A DEH-1550/XU/ES...

  • Page 45: Parts

    7.2 PARTS 7.2.1 IC - Pin Functions (PE5330A) Pin No. Pin Name Function and Operation MODEL1 Model port 1 Not used AVSS A/D GND Not used AVREF1 A/D converter reference voltage KYDT Key data input DPDT Display data output adpw A/D converter power supply output TUNPDI PLL IC data input...
  • Page 46 Function and Operation Pin No. Pin Name RDS demodulation clock input asens ACC sense input bsens Back up sense input DSENS Grille detach sense input INTRQ ATAPI HOST interrupt request input VSS0 Power supply VDD1 Crystal oscillator connection pin Crystal oscillator connection pin Connect to GND IC(VPP) Not used...
  • Page 47 - 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 Not used...
  • Page 48 - Pin Functions(UPD63712GC) Pin No. Pin Name Function and Operation Output of LD Input of PD Assignment of pickup polarity AVDD Power supply for the analog system DGND Ground for digital circuits RFOK Output of RFOK INTQ Interruption signals to the external microcomputer Input of reset Command/Parameter discrimination signal input Data strobe signal input...
  • Page 49 Pin No. Pin Name Function and Operation TESTEN Connected to GND 62-66 TEST4-0 Connected to GND ADGND GND for DAC Output of EFM signals Input of asymmetry ADVDD Power supply for DAC Input of RF 72, 73 EQ2, 1 Equalizer 2, 1 Reversal input of RF RF2- Reversal input of RF2...
  • Page 50 - Pin Functions(BA5996FP) 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 OPOUT2 Output pin for CH2 preamplifier OPIN1(+) Input pin for non-inverting input for CH1 preamplifier OPIN1(-) Input pin for inverting input from CH1 preamplifier...
  • Page 51 - 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 CF51 IC 4...

  • Page 52: Display

    7.2.2 DISPLAY - LCD(CAW1733,CAW1734) DEH-1550/XU/ES...

  • Page 53: Operational Flow Chart

    7.3 OPERATIONAL FLOW CHART Power ON VDD1=5V Pin 68 bsens Pin 64 bsens=L asens Pin 63 asens=L DSENS Pin 65 DSENS=L ADPW←H Pin 10 Starts communication with Grille microcomputer. 300ms swvdd←L Pin 21 300ms In case of the above signal, the communication Source keys with Grille microcomputer may fail.

  • Page 54: Cleaning

    7.4 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 DEH-1550/XU/ES...

  • Page 55: Operations

    8. OPERATIONS DEH-1550/XU/ES...
  • Page 56 DEH-1550/XU/ES...
  • Page 57 DEH-1550/XU/ES...
  • Page 58 DEH-1550/XU/ES...
  • Page 59 DEH-1550/XU/ES...

This manual is also suitable for:

Deh-1550 esDeh-1550bDeh-1550b esDeh-1550/xu/esDeh-1550b/xu/es

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