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Pioneer CDX-FM677-X1N/ES Service Manual
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Pioneer CDX-FM677-X1N/ES Service Manual

Universal multi-cd system
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Service
Manual
UNIVERSAL MULTI-CD SYSTEM
CDX-FM677
CDX-FM673
- This service manual should be used together with the following manual(s):
Model No.
Order No.
CX-892
CRT2356
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST .......................3
4. PCB CONNECTION DIAGRAM ................................26
5. ELECTRICAL PARTS LIST ........................................34
6. ADJUSTMENT..........................................................38
PIONEER CORPORATION
PIONEER ELECTRONICS SERVICE 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 2000
CDX-FM677/X1N/UC
Mech. Module
Remarks
C7
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.
X1N/UC
7. GENERAL INFORMATION .......................................46
7.1 DIAGNOSIS ........................................................46
7.1.1 TEST MODE ..............................................46
7.1.2 DISASSEMBLY .........................................52
7.2 PARTS .................................................................55
7.2.1 IC................................................................55
7.2.2 DISPLAY ....................................................59
7.3 OPERATIONAL FLOW CHART ...........................60
8. OPERATIONS AND SPECIFICATIONS.....................61
ORDER NO.
CRT2588
X1N/UC,ES
K-ZZY. NOV. 2000 Printed in Japan

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Summary of Contents for Pioneer CDX-FM677-X1N/ES

  • Page 1: Table Of Contents

    PIONEER ELECTRONICS SERVICE 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 2000 K-ZZY. NOV. 2000 Printed in Japan...

  • Page 2: Safety Information

    CDX-FM677,FM673 - CD Player Service Precautions 2. During disassembly, be sure to turn the power off since an internal IC might be destroyed when a con- 1. For pickup unit(CXX1285) handling, please refer nector is plugged or unplugged. to"Disassembly"(see page 52). 3.

  • Page 3: Exploded Views And Parts List

    CDX-FM677,FM673 2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKING...
  • Page 4 CDX-FM677,FM673 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 - PACKING SECTION PARTS LIST Part No. Mark No. Description CDX-FM677/X1N/UC CDX-FM673/X1N/UC CDX-FM677/X1N/ES...
  • Page 5 CDX-FM677,FM673 - Owner’s Manual Model Part No. Language CDX-FM677/X1N/UC CRD3323 English, French CDX-FM673/X1N/UC CRD3321 English, French CDX-FM677/X1N/ES CRD3325 English, Spanish, Portuguese(B), Arabic - Installation Manual Model Part No. Language CDX-FM677/X1N/UC CRD3324 English, French CDX-FM673/X1N/UC CRD3322 English, French CDX-FM677/X1N/ES CRD3326 English, Spanish, Portuguese(B), Arabic...
  • Page 6 CDX-FM677,FM673 2.2 EXTERIOR...
  • Page 7 CDX-FM677,FM673 (1) EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BMZ26P040FMC 31 Connector(CN201) CKS3920 2 Screw BMZ30P040FZK 32 Holder CNC8056 3 Button CAC6363 33 Holder CNC8070 4 Screw CBA1460 34 Remote Control Unit See Contrast table(2) 5 Spring CBH1859...
  • Page 8 CDX-FM677,FM673 2.3 CD MECHANISM MODULE...
  • Page 9 CDX-FM677,FM673 (1) CD MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Connector CDE6069 46 Spacer CNM6428 2 CD Core Unit 47 Sheet CNM6296 See Contrast table(2) 3 Connector(CN701) CKS1963 48 PCB CNP5227 4 Connector(CN101) CKS2272 49 PCB...
  • Page 10 CDX-FM677,FM673 Mark No. Description Part No. 91 Screw JGZ17P025FZK 92 Pickup Unit(Service) CXX1285 93 ••••• 94 ••••• 95 Screw IMS26P040FMC 96 Screw JFZ20P025FNI 97 Photo-transistor(Q851) PT4800 CSN1051 Spring Switch(S851,S853) 99 LED(D851) CN504-2 100 Spring Switch(S852) CSN1052 (2) CONTRAST TABLE CDX-FM677/X1N/UC, CDX-FM673/X1N/UC and CDX-FM677/X1N/ES are constructed the same except for the following: Part No.
  • Page 11 CDX-FM677,FM673 2.4 MAGAZINE ASSY - MAGAZINE ASSY SECTION PARTS LIST Mark No. Description Part No. 1 Magazine Assy CXB4027 2 Label CRW1418 3 Tray CNV5341...

  • Page 12: Block Diagram And Schematic Diagram

    CDX-FM677,FM673 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM(CDX-FM677/X1N/UC) CD CORE UNIT MECHANISM IC 603 BA4560F PICKUP UNIT (SERVICE) (P8) CN701 IC 604 LOUT CN101 BA4560F MONITOR Q771 DIODE IC 705 RF AMP, SERVO, DSP, DAC TC7SH32F AC/F/E/BD HOLOGRAM IC 201 UNIT SRAM...
  • Page 13 CDX-FM677,FM673 EXTENSION UNIT ANTENNA SELECT UNIT RELAY CN401 STEREO MODULATOR CN201 CN501 VR302 RY501 Q403 Q404 LOUT IC 302 CDRFIN IC 301 L201 L402 LOUT MPXOUT RF OUT CTF1333 CTC1079 BA4560F BA1404F Q301 PRE-ENPHASIS Q402 TP30 IC 201 BU4066BCF IC 401 BU2611FS RF IN Q401...
  • Page 14 CDX-FM677,FM673 3.2 CD MECHANISM MODULE Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. MECHANISM PICKUP UNIT(SERVICE) CXX1285 RF AMP, M854 CXB3004 M851 CXB3003 SWITCH PCB CSN1051 CN504-2 PT4800 CSN1052 CSN1051 M853 CXB4421...
  • Page 15 CDX-FM677,FM673 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. ← No differentiation is made between chip capacitors and 0.022 R022 discrete capacitors.
  • Page 16 CDX-FM677,FM673 SYSTEM CONTROLLER FM677 : PD5638A FM673 : PD5639A...
  • Page 17 CDX-FM677,FM673 SRAM IP-BUS DRIVER : FM677 model only : FM673 model only...
  • Page 18 CDX-FM677,FM673 Note:1. The encircled numbers denote measuring pointes in the circuit diagram. 2. Reference voltage REFO:2.5V - Waveforms 1 RFI 1 CH1: RFI 1 CH1: RFI 0.5V/div. 0.5µs/div. 1V/div. 1V/div. 0.5ms/div. 0.5ms/div. 2 CH2: MIRR 2 CH2: MIRR Normal mode: play 5V/div.
  • Page 19 CDX-FM677,FM673 8 CH1: TE 0 MD 8 CH1: TE 0.2V/div. 0.5V/div. 0.5V/div. 0.1s/div. 5ms/div. 20ms/div. 9 CH2: TD ! CH2: SD 0.2V/div. 0.5V/div. Normal mode: play TEST mode:100Tracks jump(FWD) Normal mode: Play (12cm) → REFO → REFO → REFO → →...
  • Page 20 CDX-FM677,FM673 ( CH1: R OUT 8 CH1: TE 6 CH1: FE 2V/div. 0.2V/div. 0.2V/div. 1ms/div. 500µs/div. 1ms/div. ) CH2: L OUT 3 CH2: FD 9 CH2: TD 2V/div. 0.5V/div. 0.5V/div. Normal mode: Play (1kHz 0dB) Normal mode: During AGC Normal mode: During AGC →...
  • Page 21 CDX-FM677,FM673...
  • Page 22 CDX-FM677,FM673 3.3 EXTENSION UNIT ADD ON MODE 19kHz LPF LOOP FILTER 6V REG. 3V REG. 5V REG. VD REGULATOR...
  • Page 23 CDX-FM677,FM673 MAX AMP PILOT BUFFER AMP 33KΩ(B) FILTER CN501 EXTENSION UNIT IP-BUS 8 9 10 11 : FM677 model only 1 2 3 4 CN901 FUSE 2A CEK1018 1K(1/2W)
  • Page 24 CDX-FM677,FM673 3.4 ANTENNA SELECT UNIT ANTENNA SELECT UNIT CN401 TUNER ANTENNA...
  • Page 25 CDX-FM677,FM673 3.5 DISPLAY ASSY...

  • Page 26: Pcb Connection Diagram

    CDX-FM677,FM673 4. PCB CONNECTION DIAGRAM SIDE A 4.1 CD CORE UNIT M852 NOTE FOR PCB DIAGRAMS 1. The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic dia- gram.
  • Page 27 CDX-FM677,FM673 SIDE B...
  • Page 28 CDX-FM677,FM673 4.2 EXTENSION UNIT SIDE A EXTENSION UNIT CN701 IC, Q ADJ CORD IP-BUS CN901 CN501...
  • Page 29 CDX-FM677,FM673 SIDE B EXTENSION UNIT IC, Q...
  • Page 30 CDX-FM677,FM673 4.3 MECHANISM PCB MECHANISM PCB PICKUP UNIT M851 (SERVICE) SPDL HOME M854 CN101 4.4 SWITCH PCB SWITCH PCB D851...
  • Page 31 CDX-FM677,FM673 4.5 MOTOR PCB MOTOR PCB 4.6 ANTENNA SELECT UNIT ANTENNA SELECT UNIT CN401 TUNER ANTENNA...
  • Page 32 CDX-FM677,FM673 4.7 DISPLAY ASSY SIDE A...
  • Page 33 CDX-FM677,FM673 SIDE B...

  • Page 34: Electrical Parts List

    CDX-FM677,FM673 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..=====Circuit Symbol and No.===Part Name Part No.
  • Page 35 CDX-FM677,FM673 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S470J CKSRYB104K16 RAB4C471J CCSRCH180J50 RS1/16S183J CCSRCH100D50 RS1/16S822J CCSRCH330J50 RS1/16S204J CCSRCH180J50 RS1/16S913J CCSRCK1R0C50 RS1/8S391J CKSRYB103K50 RS1/16S681J CCSRCK1R0C50 (FM677 model) RS1/16S0R0J CKSRYB103K50 RS1/4S152J CKSRYB103K50...
  • Page 36 CDX-FM677,FM673 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S222J RS1/16S393J RS1/16S473J RS1/16S182J RS1/16S222J RS1/16S103J RS1/16S103J RS1/16S103J RS1/16S433J RS1/16S123J (FM677 model) RS1/16S104J RS1/16S681J RS1/8S1R0J RS1/16S681J RS1/8S2R0J RS1/16S681J RS1/16S102J RS1/16S681J RS1/16S104J RS1/16S681J...
  • Page 37 CDX-FM677,FM673 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CKSRYB224K16 CAPACITORS CEV101M10 CKSRYB224K16 CKSRYB473K16 CCSRSL391J50 CSZSR100M16 CCSRSL391J50 CSZSR100M16 CKSRYB104K16 CCSRCH181J50 CKSRYB104K16 CCSRCH181J50 CCSRCH181J50 CKSRYB104K16 CCSRCH181J50 CKSRYB104K16 Unit Number : CWX2580 Unit Name : Antenna Select Unit CKSRYB103K25...

  • Page 38: Adjustment

    CDX-FM677,FM673 6. ADJUSTMENT 6.1 CD ADJUSTMENT - Precautions • Disc detection during tray extraction and return oper- • This unit uses a single power supply (+5V) for the reg- ations is performed by means of the photo transistor ulator. The signal reference potential, therefore, is in this unit.
  • Page 39 CDX-FM677,FM673 6.2 CHECKING THE GRATING - Checking the Grating After Changing the Pickup Unit • Note : CD mechanism modules the grating angle of the pickup unit cannot be adjusted after the pickup unit is changed. The pickup unit in the CD mechanism module is adjusted on the production line to match the CD mechanism module and is thus the best adjusted pickup unit for the CD mechanism module.
  • Page 40 CDX-FM677,FM673 Grating waveform Echt Xch 20mV/div, AC Fcht Ych 20mV/div, AC 0˚ 30˚ 45˚ 60˚ 75˚ 90˚...
  • Page 41 CDX-FM677,FM673 6.3 ADJUSTMENT OF ELEVATION WHEN THE CD CORE UNIT HAS BEEN REMOVED FOR MAINTENANCE - Adjustment When Error Code 60 is Displayed Because of Malfunctioning Elevation • Note : This mechanisms is detects the height of the stage using slide-variable resistance. To absorb dislocation of the stage height caused by differences in the mechanism and the CD core unit, adjustment must be made for each CD-mechanism module using a variable resistor.
  • Page 42 CDX-FM677,FM673 Examples of display 4. Press key 9 to set ELV/TRAY mode to TRAY. TRACK FUNCTION 01' 02" 5. Press key FF to release the clamp and return the tray to the magazine. Release the clamp 6. Press key 9 to enter Elevation Move mode. TRACK FUNCTION 00' 02"...
  • Page 43 CDX-FM677,FM673 12. To see the amount of dislocation, place the mechanism upside-down. If the stopper bend has been dislocated in the direction of the first CD, turn VR802 to the left(Fig. 2). VR802 EREF To lower the stage toward the sixth step by 0.1 mm, reduce the volt- age of EREF (adjusted in step 8) by 20 mV.
  • Page 44 CDX-FM677,FM673 Stopper bend of the clamp lever Frame stopper Dislocated toward the first CD. Fig. 2 Adjust the insertion gate of magazine to the third scale. Fig. 1 Engaged in the center and pressed downward. Fig. 3 Dislocated toward the sixth CD. Fig.
  • Page 45 CDX-FM677,FM673 6.4 MODULATOR ADJUSTMENT - Connection Diagram Antenna Antenna Jack Plug Linear Detector (Spectrum Analyzer) ANTENNA SELECT ANTENNA OUT UNIT FM Tuner DC V Meter VR302 Oscilloscope VR301 L302 CN401 L402 CN801 CN201 CN803 CN802 EXTENSION UNIT BACK UP DC Regulated Power Supply - Adjustment Note: When ajusting, the frequency is made 89.1MHz.

  • Page 46: General Information

    CDX-FM677,FM673 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 TEST MODE - CD Test mode • The following head units are exceptional so that their This mode is used for adjusting the CD mechanism entering ways to the test mode are different from oth- module of the device.
  • Page 47 CDX-FM677,FM673 - Flow Chart Test Mode In Reset SOURCE Sourse CD New test mode BAND Power ON (Adjustment for T.Offset) Power ON RF AMP Gain Select (Not adjustment for T.Offset) 00 00 00 Display 99 99 99 GG GG GG Display Power OFF TRK+...
  • Page 48 CDX-FM677,FM673 - 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 49 CDX-FM677,FM673 Code Class Displayed error code Description of the code and potential cause(s) Mecha- An error upon Elevation time has time out. nism elevation Mecha- An error with an em- No disc is available. nism pty magazine inserted Remarks: Unreadable TOC does not constitute an error. An intended operation continues in this case. A newly designed head unit must conform to the example given above.
  • Page 50 CDX-FM677,FM673 Mechanism Test Mode (Example) BAND Back to the test mode Playing the mechanism DOWN Playing the mechanism Mechanism test mode in – TRAY/ELV select – – Operation step select Note: Eject and CD on/off is performed in the same procedure as that for the normal mode. (3) Cause of Error and Error Code Code Class Contents...
  • Page 51 CDX-FM677,FM673 Status No. Contents Protective action Focus search preprocessing is in None progress while focus recovery is turned on. Wait time after focus close is set up. Off focus. Standing by after focus close is over. Off focus. Setup (1/2) before T balance adjustment is started. Off focus.

  • Page 52: Disassembly

    CDX-FM677,FM673 7.1.2 DISASSEMBLY Removing the Upper Case (not shown) 1. Remove the nine screws. 2. Remove the Upper Case. CD Mechanism Module Removing the CD Mechanism Module (Fig.5) Remove the four dampers. Remove the two springs. Disconnect the connector and then remove the CD Mechanism Module.
  • Page 53 CDX-FM677,FM673 Door(A) 2. The slide is done in the direction of arrow5 and remove the Door(B) while spread out the Door(A) in the Door(B) direction of arrow4. (Fig.8) *) The illustration of the text for 12-Disc type but disas- sembling method is the same for 6-Disc type. Fig.8 - Removing the Pickup Unit 1.

  • Page 54: Connector Function Description54

    CDX-FM677,FM673 7.1.3 CONNECTOR FUNCTION DESCRIPTION ANTENNA DISPLAY IP-BUS POWER SUPPLY 8 9 10 11 1 2 3 4 1.GND 1.SWDACC 1.BUS+ 7.LCH 2.ACC 2.KYDT 2.GND 8.ASENB 3.BATT. 3.DPDT 9.RCH 3.GND 4.FMIPSW 10.SGNDR 4.NC 5.GND 11.SGNDL 5.BUS- 6.GND...

  • Page 55: Parts

    CDX-FM677,FM673 7.2 PARTS 7.2.1 IC - Pin Functions (PD5638A) Pin No. Pin Name Format Function and Operation PLDT PLL data output PLCK PLL clock output adena A/D reference voltage output TXTSTB TEXT parameter output TXTSO TEXT control parameter serial output TXTSI TEXT data serial input TXTSCK...
  • Page 56 CDX-FM677,FM673 Pin No. Pin Name Format Function and Operation SRAM address bus output 65–68 A6-A3 SRAM address bus output SRAM address bus output A2 & (EPSK) SRAM address bus output and (E2PROM clock output) A1 & (EPDI) SRAM address bus output and (E2PROM data input) A0 &...
  • Page 57 CDX-FM677,FM673 - Pin Functions (PD5639A) Pin No. Pin Name Format Function and Operation PLDT PLL data output PLCK PLL clock output adena A/D reference voltage output 4–7 Not used BYTE VCC joint CNVSS VSS joint POWER CD +5V control output CONT Servo driver output control reset...
  • Page 58 CDX-FM677,FM673 Pin No. Pin Name Format Function and Operation disk Disc detector input ELVPVO Voltage input from ELV position sense ELVREF ELV reference voltage input Tray position input AVSS A/D GND VDIN Power supply short sensor input VREF A/D converter reference voltage input AVCC A/D VCC EPCS...

  • Page 59: Display

    CDX-FM677,FM673 7.2.2 DISPLAY - CAW1514...

  • Page 60: Operational Flow Chart

    CDX-FM677,FM673 7.3 OPERATIONAL FLOW CHART BATT ON VDD=5V Pin16 bsens Pin18 bsens=L POWER←H Pin10 adena←L Pin3 VD IN Error message "A0" Pin96 1.3V VD IN 2.1V POWER←L Pin75 Stand-by mag=L DISC Search POWER←L Pin10 asens Pin19 Starts communication with Grille microcomputer. DISPPW←H Pin23 Source keys operative...

  • Page 61: Operations And Specifications

    CDX-FM677,FM673 8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATIONS Start the CD player 1. Switch the radio on and tune to Modulating Frequencies. • The initial value is 89.1 MHz. • If your radio does not have muting, there may be some noise before power switch of control unit is ON.
  • Page 62 CDX-FM677,FM673...
  • Page 63 CDX-FM677,FM673 8.2 SPECIFICATIONS CD Player unit Antenna Switching unit Remote Controller unit System ... Compact disc audio system Weight ........140 g (0.3 lbs) Power source Usable discs ......Compact Disc Dimensions ........Battery (CR2025) ...... 45 (W) × 25 (H) × 43 (D) mm Signal format Weight (including battery) [1-3/4 (W) ×...

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