Pioneer GEX-FM903XM/UC Service Manual
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Pioneer GEX-FM903XM/UC Service Manual

Pioneer GEX-FM903XM/UC Service Manual

Universal xm satellite digital tuner system
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Service
Manual
UNIVERSAL XM SATELLITE DIGITAL TUNER SYSTEM
GEX-FM903XM
- This service manual should be used together with the manual(s) listed below.
For the parts numbers, adjustments, etc. which are not shown in this manual,
refer to the following manual(s).
Model No.
GEX-FM903XM/UC
EXPLODED VIEWS AND PARTS LIST
PACKING(Page 2)
- PACKING SECTION PARTS LIST
Mark No. Description
21 Carton
22 Sub Carton
23 Contain Box
24 Protector
25 Inner Box
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
Order No. Mech. Module Remarks
CRT2743
GEX-FM903XM/UC
CHG4468
CHG4469
CHL4468
CHP2443
CHW1920
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
Part No.
GEX-FM903XM/XN/UC
CHG4631
(Carton)CHG4632
CHL4631
CHP2527
Not used
ORDER NO.
CRT2831
XN/UC
K-ZZY. FEB. 2002 Printed in Japan

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Summary of Contents for Pioneer GEX-FM903XM/UC

  • 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-ZZY. FEB. 2002 Printed in Japan...
  • Page 2 GEX-FM903XM ELECTRICAL PARTS LIST(Page 36) RF Module Part No. Symbol and Description GEX-FM903XM/UC GEX-FM903XM/XN/UC Transistor 2SA1774 Not used Transistor UMX2N Not used Inductor LCYB1N8S1005 LCYB1N2S1005 Inductor LCYB3N9S1005 LCYB2N2S1005 Inductor LCYB2N7S1005 LCYB82NJ1005 RS1/16SS101J RS1/16SS431J RS1/16SS680J RS1/16SS120J RS1/16SS751J RS1/16SS122J RS1/16SS101J RS1/16SS431J RS1/16SS751J...

  • Page 3: 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-ZZY. AUG. 2001 Printed in Japan...

  • Page 4: Safety Information

    GEX-FM903XM 1. 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.
  • Page 5 GEX-FM903XM 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 Mark No. Description Part No.
  • Page 6 GEX-FM903XM 2.2 EXTERIOR 36 35...
  • Page 7 GEX-FM903XM - EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ30P060FZK 46 Button CAC6881 2 Chassis CNA2387 47 Button CAC7255 3 Case CNB2660 48 Button CAC7256 49 Button CAC7257 4 Holder CNC9329 5 Insulator CNM7196 50 Cord...

  • Page 8: Block Diagram And Schematic Diagram

    GEX-FM903XM 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM MAIN UNIT RF MODULE RF AGC DETECTOR IC 7 AD8314ARM 3.3V(RF) ANTENNA TERRESTRIAL BRANCH SELECT CIRCUIT IC 1 IC 3 IC 6 IC 9 TER_IN AT-119 MAX2644EXT MAX2644EXT MAX2682EUT ANT5V IC 451 IC 19 NJM2904...
  • Page 9 GEX-FM903XM EF802 Q808 IC 803 IC 802 PQ30RV1 UPC7805AHF EF803 IC 805 3.3V(DSP) ANT5V BP5250 Q809 IC 451 NJM2904M EF804 2.5V(DSP) DISPLAY UNIT SAT_ANT LCD 901 EF801 Q817 Q451 IC 807 DAC5V CAW1666 HA178L05UA X901 Q818 4.91MHz XMPW CN802 CN901 KYDT KEYDT KYDT...
  • Page 10 GEX-FM903XM 3.2 MAIN UNIT Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. MAIN UNIT Level:1.1V Level:1.1V > SYSTEM µ-COM > FUSE 2A CEK1018 1K(1/2W)
  • Page 11 GEX-FM903XM Multiplex Composite FM Mod. Signal Level:1.0V 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 ←...
  • Page 12 GEX-FM903XM 3.3 RF MODULE(GUIDE PAGE) RF MODULE Large size SCH diagram Guide page Detailed page...
  • Page 13 GEX-FM903XM CN502...
  • Page 14 GEX-FM903XM...
  • Page 15 GEX-FM903XM...
  • Page 16 GEX-FM903XM...
  • Page 17 GEX-FM903XM...
  • Page 18 GEX-FM903XM 3.4 DSP MODULE(GUIDE PAGE) DSP MODULE CDEC CN503...
  • Page 19 GEX-FM903XM SDRAM ST19AF08BR20QMAA SSDEC...
  • Page 20 GEX-FM903XM...
  • Page 21 GEX-FM903XM...
  • Page 22 GEX-FM903XM...
  • Page 23 GEX-FM903XM...
  • Page 24 GEX-FM903XM 3.5 DISPLAY UNIT DISPLAY UNIT KEY CONTROL LCD DRIVER...
  • Page 25 GEX-FM903XM...
  • Page 26 GEX-FM903XM 3.6 ANTENNA SELECT UNIT ANTENNA SELECT UNIT CN501 TUNER ANTENNA...
  • Page 27 GEX-FM903XM...

  • Page 28: Pcb Connection Diagram

    GEX-FM903XM 4. PCB CONNECTION DIAGRAM 4.1 MAIN UNIT NOTE FOR PCB DIAGRAMS 1. The parts mounted on this PCB include all necessary parts for several destination. For further information for MAIN UNIT respective destinations, be sure to check with the schematic IC,Q diagram.
  • Page 29 GEX-FM903XM SIDE A CORD CN901 CN501 IP-BUS IP-BUS CN201...
  • Page 30 GEX-FM903XM MAIN UNIT...
  • Page 31 GEX-FM903XM SIDE B...
  • Page 32 GEX-FM903XM 4.2 RF MODULE SIDE A XM ANTENNA RF MODULE...
  • Page 33 GEX-FM903XM SIDE B RF MODULE CN502...
  • Page 34 GEX-FM903XM 4.3 DSP MODULE DSP MODULE SIDE A...
  • Page 35 GEX-FM903XM DSP MODULE SIDE B CN503...
  • Page 36 GEX-FM903XM 4.4 DISPLAY UNIT DISPLAY UNIT DISPLAY UNIT SIDE A SIDE B...
  • Page 37 GEX-FM903XM 4.5 ANTENNA SELECT UNIT ANTENNA SELECT UNIT CN501 TUNER ANTENNA...

  • Page 38: Electrical Parts List

    GEX-FM903XM 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 39 GEX-FM903XM =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16SS562J CCSSCH150J50 RS1/16SS362J CCSSCH150J50 RS1/16SS362J CCSSCH150J50 RS1/16SS101J CCSSCH150J50 RS1/16SS330J CCSSCH101J50 RS1/16SS390J CCSSCH101J50 RS1/16SS330J CCSSCH150J50 RS1/16SS473J CKSSYB103K16 RS1/16SS473J CCSSCH150J50 RS1/16SS102J CCSSCH150J50 RS1/16SS332J CKSQYB225K10...
  • Page 40 GEX-FM903XM =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CCSSCH150J50 Inductor CTF1473 CCSSCH101J50 EMI Filter CCG1142 CCSSCH470J50 EMI Filter CCG1142 CKSSYB102K50 EMI Filter CCG1142 CKSSYB102K50 EMI Filter CCG1142 RESISTORS CKSSYB104K10 CKSSYB104K10...
  • Page 41 GEX-FM903XM =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16SS102J CKSSYB104K10 RS1/16S0R0J CCSSCH101J50 RS1/16SS562J CKSSYB104K10 RS1/16SS332J CCSSCH101J50 RS1/16SS332J CKSSYB104K10 RS1/16SS562J CCSSCH101J50 RS1/16SS103J CKSSYB104K10 RS1/16SS103J CCSSCH101J50 RS1/16SS103J CCSSCH101J50 RS1/16SS681J CKSSYB104K10 RS1/16SS681J CCSSCH101J50...
  • Page 42 GEX-FM903XM =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CSZSR100M16 Transistor IMH10A CKSSYB104K10 Transistor 2SB710A CKSSYB104K10 Transistor 2SB710A CKSSYB104K10 Transistor 2SA1674 CKSSYB104K10 Transistor DTC123EU CCSSCH101J50 Transistor 2SD1664 CCSSCH101J50 Transistor IMD3A CSZSC330M16...
  • Page 43 GEX-FM903XM =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RESISTORS RS1/16SS392J RS1/16SS102J RS1/16SS392J RS1/16SS473J RS1/16SS102J RS1/16SS473J RS1/16SS392J RS1/16SS103J RS1/16SS103J RS1/16SS103J RS1/16SS103J RS1/16SS103J RS1/16SS103J RS1/16SS103J RS1/16SS513J RS1/16SS473J RS1/16SS101J RS1/16SS473J RS1/16SS562J RS1/16SS104J RS1/16SS562J...
  • Page 44 GEX-FM903XM =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16SS473J CKSSYB102K50 RS1/16SS473J CKSSYB103K16 RS1/4SA152J CCSSCH120J50 RS1/16SS223J CEJQ220M10 RS1/16SS223J CKSSYB104K10 RS1/4SA152J CKSSYB103K16 RS1/16SS681J CEALR47M50 RS1/16SS681J CKSSYB103K16 RS1/16SS3601D CCSRCH160J50 RS1/16SS2201D CEAT100M50 RS1/16SS103J CEAT100M50...
  • Page 45 GEX-FM903XM =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CKSSYB102K50 Unit Number : CWX2610 CKSSYB472K25 Unit Name : Antenna Select Unit CKSQYB225K10 470µF/25V CCH1337 MISCELLANEOUS CKSSYB472K25 Transistor 2SC1740S 470µF/25V CCH1337 Diode...

  • Page 46: Adjustment

    GEX-FM903XM 6. ADJUSTMENT 6.1 MODULATOR ADJUSTMENT - Connection Diagram BACK UP DC Regulated Power Supply Antenna Antenna Jack Plug Linear Detector (Spectrum Analyzer) ANTENNA SELECT DC V Meter ANTENNA OUT UNIT FM Tuner S601 RESET CN802 CN801 CN401 CN402 CN501 L505 IC601 CN502...
  • Page 47 GEX-FM903XM 6.2 TEST MODE - Flow Chart B.UP ON ACC ON POWER Select the XM RADIO [XM RADIO] 1(*1) 2(*1) 3(*1) 4(*1) 5(*1) 6(*1) LOCK-DETECT BER INFO AGC INFO RS INFO TUNER INFO ERROR CODE INFO 1(*2) 2(*2) 3(*2) 4(*2) 5(*2) 6(*2) SAT1-BER-INFO...
  • Page 48 GEX-FM903XM Diagnostic mode 1. To Enter the Diagnostic mode Reset while pressing the 4 and 6 keys together. 2. To Exit from the Diagnostic mode Reset the system. 3. Contents of the Diagnostic mode Number Mode name Entry method Summerized Description Press the number 1 key for less Error rate (one effective digit) for the Bitabi signals of BER INFO...
  • Page 49 GEX-FM903XM Number Mode name Entry method Summerized Description Press the number 3 key for less Decryption LOCK/UNLOCK of satellite wave 1 signal, than two seconds while in XM2 decryption rate of Bitabi signal (two effective digits of SAT1 of the Diagnostic mode. decimal value) + RS error correction rate (two effective Message digits of decimal value) + RS error rate (two effective...
  • Page 50 GEX-FM903XM 4.2 LOCK-DETECT INFO Display format: [(1)(2) (3) (4)(5) (6) (7)(8)]. (1) The modulated QPSK signal of satellite wave 1 can be received (L) / cannot be received (-). (2) The modulated TDM signal of satellite wave 1 can be received (L) / cannot be received (-). (3) Spacing character.
  • Page 51 GEX-FM903XM 4.6 ERROR CODE Display format: [ERROR_XX]. _: Spacing character. X: Error occurring (two digits of hexadecimal value). The upper digit is for the major (physical) error, while the lower digit is for the minor error (temporary or partial errors). Refer to the following table for details: Code value Description Error location...
  • Page 52 GEX-FM903XM 4.9 TERR-BER-INFO Display format: [T_X. XXEY]. X: Bitabi signal decryption error rate (effective three digits). Y: Truncated binary exponential (with negative sign abbreviated) of the error rate. _: Spacing character. The information will become effective following the initialization of CDEC. The updating interval is 432 ms. If the wave's modulated signal cannot be received (meaning such a signal cannot be locked on), a hyphen ("-") will be displayed.
  • Page 53 GEX-FM903XM Mode number Mode name Description CHDN_REL Releasing the pre-set channel dial down key. PROG10UP_WAIT Waiting for the rough channel dial up key to be released. PROG10DN_WAIT Waiting for the rough channel dial down key to be released. PROG10UP_REL Releasing the rough channel dial up key. PROG10DN_REL Releasing the rough channel dial down key.
  • Page 54 GEX-FM903XM Mode number Mode name Description INIT8 Initializing SSDEC (Step 8). INIT9 Initializing SSDEC (Step 9). INIT10 Initializing SSDEC (Step 10 - Power Up command issued). SLEEPWT Waiting for a response to the Power Off command. SLEEP Issuing the Power Off command. INIT10WT Initializing SSDEC (waiting for a response to the Power Up command).
  • Page 55 GEX-FM903XM Mode number Mode name Description DIFF_ENS Specified Primary and Secondary PCID do not exist in an identical ensemble. PC_UNDETECT The PC signal of the specified program cannot be received. SID_UNDETECT SID of the specified program cannot be verified. The service component type of the specified program cannot be verified. SCT_UNDETECT Updating the encryption key.
  • Page 56 GEX-FM903XM 4.15 STA1 Message Display format: [3ABBCCDD]. A: The locking status of the satellite wave 1*1. B: The satellite wave 1 Bitabi signal error rate (two effective digits of decimal value)*2. C: The satellite wave 1 Read-Solomon symbol error rate (two-effective digits of decimal value)*3. D: The satellite wave 1 Read-Solomon non-correction code word (two effective digits of decimal value)*4.
  • Page 57 GEX-FM903XM 4.20 SSDEC Status3 Display format: [8___AAAA]. A: The Extract error information 1 of the SSDEC (four effective digits of hexadecimal value). 4.21 SSDEC Status4 Display format: [9____AAAA]. A: The Extract error information 2 of the SSDEC (four effective digits of hexadecimal value). 4.22 MICRO VERSION Display format: [VERAAA.

  • Page 58: General Information

    GEX-FM903XM 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 DISASSEMBLY Removing the Case (Fig.1) Remove the five screws and then remove the Case. Case Fig.1 RF Module Connector Removing the Main Unit (Fig.2) Straight the tabs at four locations indicated. Remove the screw. Remove the screw and then remove the Main Unit.

  • Page 59: Connector Function Description

    GEX-FM903XM Removing the RF Module (Fig.3) Straight the tabs at two locations indicated DSP Module and then remove the Holder. Remove the solder and then straight the tabs at four locations indicated. Remove the RF Module from the Main Unit. Note)Hold the RF Module at the connector side marked with white arrows in the Fig.2.

  • Page 60: Parts

    GEX-FM903XM 7.2 PARTS 7.2.1 IC *STA-400 FTESTOUT10 MFP_CLK FTESTOUT11 FTESTOUT12 MADD9 FTESTOUT13 MADD8 FTESTOUT14 MADD7 FTESTOUT15 MADD6 VDD3 Terr TAGC VDD3 TREFM MADD5 TREFP TADCREF TREFM MADD4 TINCM TVCMO External TREFP MADD3 IF2TA_P Terr. FIFO BER Meas. 10bit Memory Controller TADCREF IF2TA_N Terrestrial...
  • Page 61 GEX-FM903XM *K4S640832E-TL1H *TC7SH86FU 1 IN B 5 VCC VDDQ VSSQ A0-A11 : Address input BA0-BA1 : Bank select address 2 IN A VSSQ VDDQ DQ0-DQ7 : Data input/output CLK : Clock input CKE : Clock enable cs : Chip select ras : Row address strobe VDDQ 3 GND...
  • Page 62 GEX-FM903XM *STA-450 NU(IT_1) GND1 VDD1 VDD9 TEST0 GND9 CLK_IN EVENT_IRQ(GPIO_0) NU(IT_2) RESET_N TESTB TEST1 12C MASTER 12C SLAVE GPIO EXTERNAL RS232 (CAP I/F) (SYSCON I/F) INTERFACE INTERRUPT CAP_RST(GPIO_4) NU(IT_0) SPDIFF I958_OUT OUTPUT GND2 VDD_IO3 VDD2 VDD8 PC BITSTREAM AUDIO PORT PCDC INPUT INPUT...
  • Page 63 GEX-FM903XM *PCM1716E-3 LOW PASS MODE CONTROL I/F FILTER MODULATOR DIGITAL FILTER BPZ-Cont SERIAL INPUT POWER LOW PASS CRYSTAL OSC SUPPLY FILTER AT-119 MAX2644EXT RF-1 BIAS BIAS RFOUT RF-3 Vcrl RFIN *AD8314ARM RFIN VPOS ∑ ENBL V_DN ∑ 10dB 10dB 10dB 10dB VSET V_UP...
  • Page 64 GEX-FM903XM *MAX2682EUT RF2326 LO : Local oscillator input shdn GND : Ground RF OUT RFIN : Radio Frequency input IFOUT : Intermediate frequency output VCC : Power supply voltage RFIN IFOUT shdn : Active low shutdown RF IN *S-81225SG-QH RF2325 RF OUT RF IN Refernce...
  • Page 65 GEX-FM903XM *AD61009ARS LOIP RFHI VMID IOUT MXOP IFHI FDIN DMIP IFOP VQFO RFLO FLTR VMID IFLO QOUT MIDPOINT BIAS GENERATOR GAIN VPS1 GREF BIAS PTAT VPS2 GENERATOR VOLTAGE PRUP COM1 COM2 *TC7W14FK SW-475 AD8061ART VOUT...
  • Page 66 GEX-FM903XM - Pin Functions (PD5680A) Pin No. Pin Name Function and Operation XMDATA RF Unit communication data output XMCLK RF Unit communication clock output Not used Digital Unit communication data output SDAIN Digital Unit communication data input Digital Unit communication clock output BYTE External bus width select input CNVSS...
  • Page 67 GEX-FM903XM Pin No. Pin Name Function and Operation 65,66 Not used RESETN SDEC reset output 68-71 Not used TEST2 IP-FLASH urgent write control input ASENSFM ACC sense input (FM modulator) ASENS ACC sense input BSENS Back up sense input 76,77 Not used ROMDATA External ROM data output...
  • Page 68 GEX-FM903XM *S-80827ANUP-EDQ BP5250 CONTROL CIRCUIT TRIANGLE OSCILATOR Fosc = 190kHz OVER CURRENT DRIVE VREF DETECTION CIRCUIT CIRCUIT VOUT HA178L06UA REGULATOR BU2611AFS VDD2 VDD1 FMIN AMIN PHASE CHARGE REFERENCE DIVIDER PUMP XOUT MAIN COUNT FMIN PRESCALER SHIFT REGISTER LATCH AMIN...

  • Page 69: Display

    GEX-FM903XM 7.2.2 DISPLAY - CAW1666...

  • Page 70: Operational Flow Chart

    GEX-FM903XM 7.3 OPERATIONAL FLOW CHART Power ON VCC=3V Pin 16 RESET Pin 12 RESET=H BSENS Pin 75 BSENS=L ASENSFM Pin 73 ASENSFM=L ACCPW←H Pin 40 Starts communication with Grille microcomputer. 500ms DISPPW←H Pin 24 300ms In case of the above signal, the communication POWER key valid with Grille microcomputer may fail.

  • Page 71: Operations And Specifications

    GEX-FM903XM 8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATIONS Basic Operation (ADD-ON MODE) Key Finder 5/∞/2/3 buttons DISPLAY button MODE button Buttons 1–6 POWER button BAND button...
  • Page 72 GEX-FM903XM...
  • Page 73 GEX-FM903XM...
  • Page 74 GEX-FM903XM 8.2 SPECIFICATIONS Specifications General Power source ..14.4 V DC (10.8 – 15.1 V allowable) Grounding system ........Negative type Max. current consumption ........2.0 A Backup current .......... 2.0 mA or less Dimensions Hide-away tuner ..220 (W) × 28 (H) × 145 (D) mm [8-5/8 (W) ×...

  • Page 75: 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 C PIONEER CORPORATION 2001 K-ZZY. AUG. 2001 Printed in Japan...

  • Page 76: Safety Information

    GEX-FM903XM 1. 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.
  • Page 77 GEX-FM903XM 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 Mark No. Description Part No.
  • Page 78 GEX-FM903XM 2.2 EXTERIOR 36 35...
  • Page 79 GEX-FM903XM - EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ30P060FZK 46 Button CAC6881 2 Chassis CNA2387 47 Button CAC7255 3 Case CNB2660 48 Button CAC7256 49 Button CAC7257 4 Holder CNC9329 5 Insulator CNM7196 50 Cord...

  • Page 80: Block Diagram And Schematic Diagram

    GEX-FM903XM 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM MAIN UNIT RF MODULE RF AGC DETECTOR IC 7 AD8314ARM 3.3V(RF) ANTENNA TERRESTRIAL BRANCH SELECT CIRCUIT IC 1 IC 3 IC 6 IC 9 TER_IN AT-119 MAX2644EXT MAX2644EXT MAX2682EUT ANT5V IC 451 IC 19 NJM2904...
  • Page 81 GEX-FM903XM EF802 Q808 IC 803 IC 802 PQ30RV1 UPC7805AHF EF803 IC 805 3.3V(DSP) ANT5V BP5250 Q809 IC 451 NJM2904M EF804 2.5V(DSP) DISPLAY UNIT SAT_ANT LCD 901 EF801 Q817 Q451 IC 807 DAC5V CAW1666 HA178L05UA X901 Q818 4.91MHz XMPW CN802 CN901 KYDT KEYDT KYDT...
  • Page 82 GEX-FM903XM 3.2 MAIN UNIT Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. MAIN UNIT Level:1.1V Level:1.1V > SYSTEM µ-COM > FUSE 2A CEK1018 1K(1/2W)
  • Page 83 GEX-FM903XM Multiplex Composite FM Mod. Signal Level:1.0V 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 ←...
  • Page 84 GEX-FM903XM 3.3 RF MODULE(GUIDE PAGE) RF MODULE Large size SCH diagram Guide page Detailed page...
  • Page 85 GEX-FM903XM CN502...
  • Page 86 GEX-FM903XM...
  • Page 87 GEX-FM903XM...
  • Page 88 GEX-FM903XM...
  • Page 89 GEX-FM903XM...
  • Page 90 GEX-FM903XM 3.4 DSP MODULE(GUIDE PAGE) DSP MODULE CDEC CN503...
  • Page 91 GEX-FM903XM SDRAM ST19AF08BR20QMAA SSDEC...
  • Page 92 GEX-FM903XM...
  • Page 93 GEX-FM903XM...
  • Page 94 GEX-FM903XM...
  • Page 95 GEX-FM903XM...
  • Page 96 GEX-FM903XM 3.5 DISPLAY UNIT DISPLAY UNIT KEY CONTROL LCD DRIVER...
  • Page 97 GEX-FM903XM...
  • Page 98 GEX-FM903XM 3.6 ANTENNA SELECT UNIT ANTENNA SELECT UNIT CN501 TUNER ANTENNA...
  • Page 99 GEX-FM903XM...

  • Page 100: Pcb Connection Diagram

    GEX-FM903XM 4. PCB CONNECTION DIAGRAM 4.1 MAIN UNIT NOTE FOR PCB DIAGRAMS 1. The parts mounted on this PCB include all necessary parts for several destination. For further information for MAIN UNIT respective destinations, be sure to check with the schematic IC,Q diagram.
  • Page 101 GEX-FM903XM SIDE A CORD CN901 CN501 IP-BUS IP-BUS CN201...
  • Page 102 GEX-FM903XM MAIN UNIT...
  • Page 103 GEX-FM903XM SIDE B...
  • Page 104 GEX-FM903XM 4.2 RF MODULE SIDE A XM ANTENNA RF MODULE...
  • Page 105 GEX-FM903XM SIDE B RF MODULE CN502...
  • Page 106 GEX-FM903XM 4.3 DSP MODULE DSP MODULE SIDE A...
  • Page 107 GEX-FM903XM DSP MODULE SIDE B CN503...
  • Page 108 GEX-FM903XM 4.4 DISPLAY UNIT DISPLAY UNIT DISPLAY UNIT SIDE A SIDE B...
  • Page 109 GEX-FM903XM 4.5 ANTENNA SELECT UNIT ANTENNA SELECT UNIT CN501 TUNER ANTENNA...

  • Page 110: Electrical Parts List

    GEX-FM903XM 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 111 GEX-FM903XM =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16SS562J CCSSCH150J50 RS1/16SS362J CCSSCH150J50 RS1/16SS362J CCSSCH150J50 RS1/16SS101J CCSSCH150J50 RS1/16SS330J CCSSCH101J50 RS1/16SS390J CCSSCH101J50 RS1/16SS330J CCSSCH150J50 RS1/16SS473J CKSSYB103K16 RS1/16SS473J CCSSCH150J50 RS1/16SS102J CCSSCH150J50 RS1/16SS332J CKSQYB225K10...
  • Page 112 GEX-FM903XM =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CCSSCH150J50 Inductor CTF1473 CCSSCH101J50 EMI Filter CCG1142 CCSSCH470J50 EMI Filter CCG1142 CKSSYB102K50 EMI Filter CCG1142 CKSSYB102K50 EMI Filter CCG1142 RESISTORS CKSSYB104K10 CKSSYB104K10...
  • Page 113 GEX-FM903XM =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16SS102J CKSSYB104K10 RS1/16S0R0J CCSSCH101J50 RS1/16SS562J CKSSYB104K10 RS1/16SS332J CCSSCH101J50 RS1/16SS332J CKSSYB104K10 RS1/16SS562J CCSSCH101J50 RS1/16SS103J CKSSYB104K10 RS1/16SS103J CCSSCH101J50 RS1/16SS103J CCSSCH101J50 RS1/16SS681J CKSSYB104K10 RS1/16SS681J CCSSCH101J50...
  • Page 114 GEX-FM903XM =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CSZSR100M16 Transistor IMH10A CKSSYB104K10 Transistor 2SB710A CKSSYB104K10 Transistor 2SB710A CKSSYB104K10 Transistor 2SA1674 CKSSYB104K10 Transistor DTC123EU CCSSCH101J50 Transistor 2SD1664 CCSSCH101J50 Transistor IMD3A CSZSC330M16...
  • Page 115 GEX-FM903XM =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RESISTORS RS1/16SS392J RS1/16SS102J RS1/16SS392J RS1/16SS473J RS1/16SS102J RS1/16SS473J RS1/16SS392J RS1/16SS103J RS1/16SS103J RS1/16SS103J RS1/16SS103J RS1/16SS103J RS1/16SS103J RS1/16SS103J RS1/16SS513J RS1/16SS473J RS1/16SS101J RS1/16SS473J RS1/16SS562J RS1/16SS104J RS1/16SS562J...
  • Page 116 GEX-FM903XM =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16SS473J CKSSYB102K50 RS1/16SS473J CKSSYB103K16 RS1/4SA152J CCSSCH120J50 RS1/16SS223J CEJQ220M10 RS1/16SS223J CKSSYB104K10 RS1/4SA152J CKSSYB103K16 RS1/16SS681J CEALR47M50 RS1/16SS681J CKSSYB103K16 RS1/16SS3601D CCSRCH160J50 RS1/16SS2201D CEAT100M50 RS1/16SS103J CEAT100M50...
  • Page 117 GEX-FM903XM =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CKSSYB102K50 Unit Number : CWX2610 CKSSYB472K25 Unit Name : Antenna Select Unit CKSQYB225K10 470µF/25V CCH1337 MISCELLANEOUS CKSSYB472K25 Transistor 2SC1740S 470µF/25V CCH1337 Diode...

  • Page 118: Adjustment

    GEX-FM903XM 6. ADJUSTMENT 6.1 MODULATOR ADJUSTMENT - Connection Diagram BACK UP DC Regulated Power Supply Antenna Antenna Jack Plug Linear Detector (Spectrum Analyzer) ANTENNA SELECT DC V Meter ANTENNA OUT UNIT FM Tuner S601 RESET CN802 CN801 CN401 CN402 CN501 L505 IC601 CN502...
  • Page 119 GEX-FM903XM 6.2 TEST MODE - Flow Chart B.UP ON ACC ON POWER Select the XM RADIO [XM RADIO] 1(*1) 2(*1) 3(*1) 4(*1) 5(*1) 6(*1) LOCK-DETECT BER INFO AGC INFO RS INFO TUNER INFO ERROR CODE INFO 1(*2) 2(*2) 3(*2) 4(*2) 5(*2) 6(*2) SAT1-BER-INFO...
  • Page 120 GEX-FM903XM Diagnostic mode 1. To Enter the Diagnostic mode Reset while pressing the 4 and 6 keys together. 2. To Exit from the Diagnostic mode Reset the system. 3. Contents of the Diagnostic mode Number Mode name Entry method Summerized Description Press the number 1 key for less Error rate (one effective digit) for the Bitabi signals of BER INFO...
  • Page 121 GEX-FM903XM Number Mode name Entry method Summerized Description Press the number 3 key for less Decryption LOCK/UNLOCK of satellite wave 1 signal, than two seconds while in XM2 decryption rate of Bitabi signal (two effective digits of SAT1 of the Diagnostic mode. decimal value) + RS error correction rate (two effective Message digits of decimal value) + RS error rate (two effective...
  • Page 122 GEX-FM903XM 4.2 LOCK-DETECT INFO Display format: [(1)(2) (3) (4)(5) (6) (7)(8)]. (1) The modulated QPSK signal of satellite wave 1 can be received (L) / cannot be received (-). (2) The modulated TDM signal of satellite wave 1 can be received (L) / cannot be received (-). (3) Spacing character.
  • Page 123 GEX-FM903XM 4.6 ERROR CODE Display format: [ERROR_XX]. _: Spacing character. X: Error occurring (two digits of hexadecimal value). The upper digit is for the major (physical) error, while the lower digit is for the minor error (temporary or partial errors). Refer to the following table for details: Code value Description Error location...
  • Page 124 GEX-FM903XM 4.9 TERR-BER-INFO Display format: [T_X. XXEY]. X: Bitabi signal decryption error rate (effective three digits). Y: Truncated binary exponential (with negative sign abbreviated) of the error rate. _: Spacing character. The information will become effective following the initialization of CDEC. The updating interval is 432 ms. If the wave's modulated signal cannot be received (meaning such a signal cannot be locked on), a hyphen ("-") will be displayed.
  • Page 125 GEX-FM903XM Mode number Mode name Description CHDN_REL Releasing the pre-set channel dial down key. PROG10UP_WAIT Waiting for the rough channel dial up key to be released. PROG10DN_WAIT Waiting for the rough channel dial down key to be released. PROG10UP_REL Releasing the rough channel dial up key. PROG10DN_REL Releasing the rough channel dial down key.
  • Page 126 GEX-FM903XM Mode number Mode name Description INIT8 Initializing SSDEC (Step 8). INIT9 Initializing SSDEC (Step 9). INIT10 Initializing SSDEC (Step 10 - Power Up command issued). SLEEPWT Waiting for a response to the Power Off command. SLEEP Issuing the Power Off command. INIT10WT Initializing SSDEC (waiting for a response to the Power Up command).
  • Page 127 GEX-FM903XM Mode number Mode name Description DIFF_ENS Specified Primary and Secondary PCID do not exist in an identical ensemble. PC_UNDETECT The PC signal of the specified program cannot be received. SID_UNDETECT SID of the specified program cannot be verified. The service component type of the specified program cannot be verified. SCT_UNDETECT Updating the encryption key.
  • Page 128 GEX-FM903XM 4.15 STA1 Message Display format: [3ABBCCDD]. A: The locking status of the satellite wave 1*1. B: The satellite wave 1 Bitabi signal error rate (two effective digits of decimal value)*2. C: The satellite wave 1 Read-Solomon symbol error rate (two-effective digits of decimal value)*3. D: The satellite wave 1 Read-Solomon non-correction code word (two effective digits of decimal value)*4.
  • Page 129 GEX-FM903XM 4.20 SSDEC Status3 Display format: [8___AAAA]. A: The Extract error information 1 of the SSDEC (four effective digits of hexadecimal value). 4.21 SSDEC Status4 Display format: [9____AAAA]. A: The Extract error information 2 of the SSDEC (four effective digits of hexadecimal value). 4.22 MICRO VERSION Display format: [VERAAA.

  • Page 130: General Information

    GEX-FM903XM 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 DISASSEMBLY Removing the Case (Fig.1) Remove the five screws and then remove the Case. Case Fig.1 RF Module Connector Removing the Main Unit (Fig.2) Straight the tabs at four locations indicated. Remove the screw. Remove the screw and then remove the Main Unit.

  • Page 131: Connector Function Description

    GEX-FM903XM Removing the RF Module (Fig.3) Straight the tabs at two locations indicated DSP Module and then remove the Holder. Remove the solder and then straight the tabs at four locations indicated. Remove the RF Module from the Main Unit. Note)Hold the RF Module at the connector side marked with white arrows in the Fig.2.

  • Page 132: Parts

    GEX-FM903XM 7.2 PARTS 7.2.1 IC *STA-400 FTESTOUT10 MFP_CLK FTESTOUT11 FTESTOUT12 MADD9 FTESTOUT13 MADD8 FTESTOUT14 MADD7 FTESTOUT15 MADD6 VDD3 Terr TAGC VDD3 TREFM MADD5 TREFP TADCREF TREFM MADD4 TINCM TVCMO External TREFP MADD3 IF2TA_P Terr. FIFO BER Meas. 10bit Memory Controller TADCREF IF2TA_N Terrestrial...
  • Page 133 GEX-FM903XM *K4S640832E-TL1H *TC7SH86FU 1 IN B 5 VCC VDDQ VSSQ A0-A11 : Address input BA0-BA1 : Bank select address 2 IN A VSSQ VDDQ DQ0-DQ7 : Data input/output CLK : Clock input CKE : Clock enable cs : Chip select ras : Row address strobe VDDQ 3 GND...
  • Page 134 GEX-FM903XM *STA-450 NU(IT_1) GND1 VDD1 VDD9 TEST0 GND9 CLK_IN EVENT_IRQ(GPIO_0) NU(IT_2) RESET_N TESTB TEST1 12C MASTER 12C SLAVE GPIO EXTERNAL RS232 (CAP I/F) (SYSCON I/F) INTERFACE INTERRUPT CAP_RST(GPIO_4) NU(IT_0) SPDIFF I958_OUT OUTPUT GND2 VDD_IO3 VDD2 VDD8 PC BITSTREAM AUDIO PORT PCDC INPUT INPUT...
  • Page 135 GEX-FM903XM *PCM1716E-3 LOW PASS MODE CONTROL I/F FILTER MODULATOR DIGITAL FILTER BPZ-Cont SERIAL INPUT POWER LOW PASS CRYSTAL OSC SUPPLY FILTER AT-119 MAX2644EXT RF-1 BIAS BIAS RFOUT RF-3 Vcrl RFIN *AD8314ARM RFIN VPOS ∑ ENBL V_DN ∑ 10dB 10dB 10dB 10dB VSET V_UP...
  • Page 136 GEX-FM903XM *MAX2682EUT RF2326 LO : Local oscillator input shdn GND : Ground RF OUT RFIN : Radio Frequency input IFOUT : Intermediate frequency output VCC : Power supply voltage RFIN IFOUT shdn : Active low shutdown RF IN *S-81225SG-QH RF2325 RF OUT RF IN Refernce...
  • Page 137 GEX-FM903XM *AD61009ARS LOIP RFHI VMID IOUT MXOP IFHI FDIN DMIP IFOP VQFO RFLO FLTR VMID IFLO QOUT MIDPOINT BIAS GENERATOR GAIN VPS1 GREF BIAS PTAT VPS2 GENERATOR VOLTAGE PRUP COM1 COM2 *TC7W14FK SW-475 AD8061ART VOUT...
  • Page 138 GEX-FM903XM - Pin Functions (PD5680A) Pin No. Pin Name Function and Operation XMDATA RF Unit communication data output XMCLK RF Unit communication clock output Not used Digital Unit communication data output SDAIN Digital Unit communication data input Digital Unit communication clock output BYTE External bus width select input CNVSS...
  • Page 139 GEX-FM903XM Pin No. Pin Name Function and Operation 65,66 Not used RESETN SDEC reset output 68-71 Not used TEST2 IP-FLASH urgent write control input ASENSFM ACC sense input (FM modulator) ASENS ACC sense input BSENS Back up sense input 76,77 Not used ROMDATA External ROM data output...
  • Page 140 GEX-FM903XM *S-80827ANUP-EDQ BP5250 CONTROL CIRCUIT TRIANGLE OSCILATOR Fosc = 190kHz OVER CURRENT DRIVE VREF DETECTION CIRCUIT CIRCUIT VOUT HA178L06UA REGULATOR BU2611AFS VDD2 VDD1 FMIN AMIN PHASE CHARGE REFERENCE DIVIDER PUMP XOUT MAIN COUNT FMIN PRESCALER SHIFT REGISTER LATCH AMIN...

  • Page 141: Display

    GEX-FM903XM 7.2.2 DISPLAY - CAW1666...

  • Page 142: Operational Flow Chart

    GEX-FM903XM 7.3 OPERATIONAL FLOW CHART Power ON VCC=3V Pin 16 RESET Pin 12 RESET=H BSENS Pin 75 BSENS=L ASENSFM Pin 73 ASENSFM=L ACCPW←H Pin 40 Starts communication with Grille microcomputer. 500ms DISPPW←H Pin 24 300ms In case of the above signal, the communication POWER key valid with Grille microcomputer may fail.

  • Page 143: Operations And Specifications

    GEX-FM903XM 8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATIONS Basic Operation (ADD-ON MODE) Key Finder 5/∞/2/3 buttons DISPLAY button MODE button Buttons 1–6 POWER button BAND button...
  • Page 144 GEX-FM903XM...
  • Page 145 GEX-FM903XM...
  • Page 146 GEX-FM903XM 8.2 SPECIFICATIONS Specifications General Power source ..14.4 V DC (10.8 – 15.1 V allowable) Grounding system ........Negative type Max. current consumption ........2.0 A Backup current .......... 2.0 mA or less Dimensions Hide-away tuner ..220 (W) × 28 (H) × 145 (D) mm [8-5/8 (W) ×...

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