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Pioneer DEH-MG2047 Service Manual
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Pioneer DEH-MG2047 Service Manual

6 disc in-dash cd changer with fm/am tuner
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6 DISC IN-DASH CD CHANGER WITH FM/AM TUNER
DEH-MG2047
VEHICLE
DESTINATION
F-250, F-350
U.S.A., CANADA
This service manual should be used together with the following manual(s):
Model No.
Order No.
CX-951
CRT2872
For details, refer to "Important symbols for good services".
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 2004
FORD
PRODUCED
AFTER
July 2004
Mech.Module
G2
CD Mech. Module:Circuit Description, Mech. Description, Disassembly
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
DEH-MG2047ZF/XU/UC
OEM PARTS No.
ID No.
5C3T-18C815-AG
-
Remarks
ORDER NO.
CRT3266
ZF
/XU/UC
PIONEER MODEL No.
DEH-MG2047ZF/XU/UC
K-ZZW. MAY 2004 printed in Japan

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Summary of Contents for Pioneer DEH-MG2047

  • 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 2004 K-ZZW.

  • 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 MECHANISM ASSY(G2B)(SERVICE)(1) ....................8 2.4 MECHANISM ASSY(G2B)(SERVICE)(2) ....................10 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..................12 3.1 BLOCK DIAGRAM............................12 3.2 TUNER AMP UNIT ...........................16 3.3 KEYBOARD UNIT ............................22 3.4 CD MECHANISM MODULE(GUIDE PAGE) .....................24 4.

  • Page 4: Specifications

    1. SPECIFICATIONS General Power source ................14.4V DC(14.2V-14.6V allowable) Grounding system ............... Negative type Backup current ................3mA or less Dimensions ................. 198(W) x 130(H) x 202(D)mm Weight ..................2.7kg CD player System ..................Compact disc audio system Usable discs ................Compact disc Signal format ................

  • Page 5: 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. • Screw adjacent to mark on the product are used for disassembly. •...

  • Page 6: Exterior

    2.2 EXTERIOR 62 62 DEH-MG2047ZF/XU/UC...
  • Page 7 EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. Button(1,3) CAC7983 Screw BMZ50P080FTC Screw BSZ26P060FTC Button(2) CAC7984 Screw BSZ26P080FTC Button(5) CAC7985 Screw BSZ26P180FTC Button(4,6) CAC7986 Screw(M2.6x14) CBA1632 Holder Unit CXC3509 Screw BSZ26P060FTC Connector CDE7271 Chassis CNA2626 Screw(M2x2.5) CBA1624...

  • Page 8: Mechanism Assy(G2B)(Service)(1)

    2.3 MECHANISM ASSY(G2B)(SERVICE)(1) 1:GEM1043 2:GEM1042 3:GEM1024 DEH-MG2047ZF/XU/UC...
  • Page 9 MECHANISM ASSY(G2B)(SERVICE)(1) PARTS LIST Mark No. Description Part No. Mark No. Description Part No. Holder CND1668 Screw BMZ20P020FZB Screw BMZ20P025FTC Gear CNV6634 Screw(M2x2) CBA1556 Gear CNV6635 Screw(M2x2.5) CBA1626 PCB Unit(LED) CWX2614 Screw(M2x2.5) CBA1609 Connector(CN31) CKS4523 Motor Unit(-A)(M2) CXC1145 Screw(M2x4.5) CBA1629 Spring CBH2460 Screw...

  • Page 10: Mechanism Assy(G2B)(Service)(2)

    2.4 MECHANISM ASSY(G2B)(SERVICE)(2) 1:GEM1043 2:GEM1042 DEH-MG2047ZF/XU/UC...
  • Page 11 MECHANISM ASSY(G2B)(SERVICE)(2) PARTS LIST Mark No. Description Part No. Mark No. Description Part No. Shaft Unit(-C) CXB7528 Service CRG Mechanism Assy(G2)CXX1767 Screw(M2x2) CBA1556 Screw JFZ20P020FTC Screw(M2x6) CBA1628 PU Unit(Service)(PX1) CXX1568 Washer CBF1038 Gear CNV6620 Spring CBH2453 Gear CNV6621 Switch(S7,8) CSN1057 Spring CBH2480 Spring...

  • Page 12: Block Diagram And Schematic Diagram

    3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM TUNER AMP UNIT FM/AM TUNER UNIT RESET IC 602 RESET FM/AM 1ST IF 10.7MHz MPXREF 41kHz CN726 AMRF T51 Q51 CF51 CF52 CF53 AMDET S-80843CNUA AMANT ANTENNA L ch TUNL JACK IC 2 FM MPX R ch DIAGNOSTICS...
  • Page 13 VCC REGULATOR VDD REGULATOR RESET 1/2VCC REGULATOR Q805 Q811 Q809 Q807 IC 602 B.UP B.UP 1/2VCC 5.0V 8.6V Q804 S-80843CNUA-B84 Q806 Q808 SWVDD SWVDD SWVDD SYSPWR Q810 SYSTEM CONTROL Q826 BUS DRIVER CANH IC 781 IC 601(1/2) PD5872B CANL TJA1041T CN721 MS CAN B RMUTE...
  • Page 14 PU UNIT(SERVICE) CONTROL UNIT(G2F) PCB UNIT (PX1) PCB UNIT(SIDE) CN101 CN11 CN12 CN41 MD 23 L-OUT LRCKIN Q101 SCKIN IC 201 UPD63711GC A+C,B+D, A+C,B+D,E,F CD CONTROL HOLOGRAM UNIT FOCUS ACT TRACKING ACT PCB UNIT(M2 UNIT) MOTOR SERVO DRIVER CN42 XSI,XSO,XS SPINDLE TSI,TSO,TS SIN(EC)
  • Page 15 CN601 L-OUT LOUT 3.3V - 5V CONVERTER Q602 LRCKIN ZLRCK Q603 CD MUTE IC504(1/2) SCKIN ZSCK TC74VHCT08AFT 711GC Q601 IC501 NTROL SM5903BFP 5V - 3.3V CONVERTER SHOCK PROOF BUFFER RAM IC505(1/2) CONTROLLER TC74VHC541FT DOUT,LRCK, IC507 SCKO,RADV, MSM51V17400F6TFT SBSY ZSENSE 9,10 SERVO DSP I/F IC505(2/2) IC504(2/2)

  • Page 16: Tuner Amp Unit

    3.2 TUNER AMP UNIT 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 AM NOISE BLANKER FM:-22.5dBs AM:-32.0dBs CD: -0.8dBs CDDJ: -0.5dBs FM(100%):-19.5dBs AM(30%):-29.0dBs FM: -1.5dBs...
  • Page 17 NOTE : Symbol indicates a resistor. Decimal points for resistor The > mark found on some component parts indicates No differentiation is made between chip resistors and and capacitor fixed values the importance of the safety factor of the part. discrete resistors.
  • Page 18 DEH-MG2047ZF/XU/UC...
  • Page 19 CN601 DEH-MG2047ZF/XU/UC...
  • Page 20 DEH-MG2047ZF/XU/UC...
  • Page 21 DEH-MG2047ZF/XU/UC...

  • Page 22: Keyboard Unit

    3.3 KEYBOARD UNIT VF DRIVER CN724 DEH-MG2047ZF/XU/UC...
  • Page 23 KEYBOARD UNIT POWER/VOLUME DEH-MG2047ZF/XU/UC...

  • Page 24: Cd Mechanism Module(Guide Page)

    3.4 CD MECHANISM MODULE(GUIDE PAGE) @) 8 1 PCB UNIT (SIDE) PCB UNIT (M2 UNIT) CN11 ELVSENSE CCW1023 MOTOR DRIVER 1K(B) PCB UNIT CD CONTROL SPINDLE MOTOR LOAD3 CN42 CSN1051 CN12 CSN1057 CLAMP HOME CSN1057 CRG MOTOR M3 CXC1143 CN41 CN14 PU UNIT(SERVICE)(PX1) 3+3ch...
  • Page 25 CONTROL UNIT(G2F) MA152WA MUTE 3.3V-5V CONVERTER BUFFER RAM SHOCK PROOF MEMORY CONTROLLER & 5V-3.3V CONVERTER 3.3V REGULATOR 5V REGULATOR PD5890A MECHANISM CONTROLLER 8R2K DEH-MG2047ZF/XU/UC...
  • Page 26 F G H DEH-MG2047ZF/XU/UC...
  • Page 27 DEH-MG2047ZF/XU/UC...
  • Page 28 CN725 DEH-MG2047ZF/XU/UC...
  • Page 29 DEH-MG2047ZF/XU/UC...
  • Page 30 Note: The encircled numbers denote measuring points in the circuit diagram. CH1 : 1 FDX CH1 : 5 RFO Mode:Test Mode:Test CH2 : 2 FOP CH2 : 6 TE CH3 : 3 FOM CH3 : 7 TEC CH4 : 4 EC Focus search mode Tracking open CH1 : 5 RFO...
  • Page 31 CH1 : 6 TE CH1 : 1 FDX Mode:Normal Mode:Normal CH2 : 9 FE CH2 : ! FOK CH3 : 0 RFI CH3 : @ MDX CH4 : # FG Focus close Setup CH1 : 9 FE Mode:Normal CH1 : $ STSMO Mode:Normal CH2 : 1 FDX CH2 : 6 TE...
  • Page 32 CH1 : * LOUT CH1 : 6 TE Mode:Normal Mode:Normal CH2 : ( ROUT CH2 : 8 TDX CH3 : ) SD CH4 : 4 EC Audio output(1kHz , 0dB) During inside / outside search CH1 : 1 FDX Mode:Normal CH2 : ! FOK CH3 : @ MDX CH4 : # FG...
  • Page 33 DEH-MG2047ZF/XU/UC...

  • Page 34: 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 several destination. For further information for respective destinations, be sure to check with the schematic dia- gram.
  • Page 35 SIDE A IC,Q FM/AM ANTENNA CAR HARNESS CN951 FRONT DEH-MG2047ZF/XU/UC...
  • Page 36 TUNER AMP UNIT IC,Q DEH-MG2047ZF/XU/UC...
  • Page 37 SIDE B DEH-MG2047ZF/XU/UC...

  • Page 38: Keyboard Unit

    4.2 KEYBOARD UNIT KEYBOARD UNIT SIDE A DEH-MG2047ZF/XU/UC...
  • Page 39 KEYBOARD UNIT SIDE B IC,Q CN724 DEH-MG2047ZF/XU/UC...

  • Page 40: Cd Mechanism Module

    4.3 CD MECHANISM MODULE SIDE A CONTROL UNIT (G2F) IC,Q CN725 CN11 REFO DEH-MG2047ZF/XU/UC...
  • Page 41 SIDE B CONTROL UNIT (G2F) IC,Q DEH-MG2047ZF/XU/UC...
  • Page 42 PCB UNIT (LED) PCB UNIT (LOAD) LOAD2 CN13 CN14 ELEVATION CAMOK CAMLOAD LOAD1 DEH-MG2047ZF/XU/UC...
  • Page 43 SIDE B PCB UNIT (SIDE) SIDE A PCB UNIT (SIDE) CN31 LOADING CAMGEAR ELV SENSE CN101 DEH-MG2047ZF/XU/UC...
  • Page 44 PCB UNIT PU UNIT(SERVICE)(PX1) M3 CRG CN41 LOAD3 CN42 CN12 DEH-MG2047ZF/XU/UC...
  • Page 45 PCB UNIT(M2 UNIT) HOME CLAMP SPINDLE CN42 R4 R3 DEH-MG2047ZF/XU/UC...

  • Page 46: 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..Circuit Symbol and No. Part No.
  • Page 47 Circuit Symbol and No. Part No. Circuit Symbol and No. Part No. D 915 Diode 1SS355 R 118 RS1/16S223J R 119 RS1/16S103J L 301 Inductor CTF1379 R 120 RS1/16S103J L 303 Inductor CTF1379 R 121 RS1/16S124J L 304 Inductor CTF1379 L 305 Inductor CTF1379...
  • Page 48 Circuit Symbol and No. Part No. Circuit Symbol and No. Part No. R 368 RS1/16S473J R 627 RS1/16S473J R 369 RS1/16S473J R 628 RS1/16S471J R 370 RS1/16S473J R 629 RS1/16S102J R 371 RS1/16S473J R 630 RS1/16S102J R 372 RS1/16S473J R 631 RS1/16S473J R 401 RS1/10S222J...
  • Page 49 Circuit Symbol and No. Part No. Circuit Symbol and No. Part No. R 722 RS1/16S0R0J R 901 RS1/16S473J R 723 RS1/16S0R0J R 902 RS1/16S473J R 724 RS1/16S0R0J R 903 RS1/16S103J R 725 RS1/16S473J R 904 RD1/4PU102J R 726 RS1/16S223J R 905 RS1/16S223J R 727 RS1/16S223J...
  • Page 50 Circuit Symbol and No. Part No. Circuit Symbol and No. Part No. C 165 CCSRCH470J50 C 368 CCSRCH271J50 C 166 CCSRCH470J50 C 369 CCSRCH560J50 C 167 CCSRCH470J50 C 370 CCSRCH560J50 C 168 CCSRCH470J50 C 371 CCSRCH560J50 C 169 CKSRYB473K50 C 372 CCSRCH560J50 C 170 CKSRYB473K50...
  • Page 51 Circuit Symbol and No. Part No. Circuit Symbol and No. Part No. Unit Name:Keyboard Unit C 738 CKSRYB102K50 C 739 CKSRYB102K50 C 740 CKSRYB102K50 MISCELLANEOUS C 741 CKSRYB102K50 IC 951 LC75750EHS C 742 CKSRYB102K50 Q 951 Transistor DTC124EU C 743 CKSRYB103K50 Q 952 Transistor...
  • Page 52 Circuit Symbol and No. Part No. Circuit Symbol and No. Part No. R 956 RS1/16S471J Q 603 Transistor DTC314TK R 957 RS1/16S473J Q 604 Transistor DTC314TK R 961 RS1/16S101J Q 702 Transistor UMD3N R 962 RS1/16S151J R 963 RS1/16S101J D 101 Diode 1SS355 D 301...
  • Page 53 Circuit Symbol and No. Part No. Circuit Symbol and No. Part No. R 324 RS1/16S103J C 203 CKSRYB473K25 R 325 RS1/16S103J R 501 RS1/16S0R0J C 204 CKSRYB182K50 R 504 RS1/16S331J C 205 CKSRYB104K25 R 508 RS1/16S392J C 206 CKSRYB152K50 C 207 CKSRYB224K16 R 511 RS1/16S0R0J...
  • Page 54 Circuit Symbol and No. Part No. Circuit Symbol and No. Part No. Miscellaneous Parts List S 22 Spring Switch(LOAD2) CSN1052 Motor Unit(-A)(CAMGEAR) CXC1144 Motor Unit(-B)(ELEVATION) CXC1145 Motor Unit(-A)(CRG) CXC1143 Unit Number:CWX2614 Variable Resistor 10kΩ CCW1023 Unit Name:PCB Unit(LED) PU Unit(Service)(PX1) CXX1568 Fan Motor CXM1268...

  • Page 55: Adjustment

    6. ADJUSTMENT 6.1 CD ADJUSTMENT 1) Precautions on Adjustment 2) Description of the Test Mode • Turning on the Test Mode • The unit employs a single voltage (+5V) for the regu- See page 56. lator, thus the reference potential of the signal is •...
  • Page 56 - Flow Chart [Key] [4]+[6] Contents Test Mode In Display [CD] Source CD [SCAN] Power ON Power ON RF AMP Gain Select *1 Mechanism Test Mode (T.OFFSET adjustment required) (T.OFFSET adjustment not required) Initial State [SCAN] [SEEK UP] [SEEK DOWN] Focus Close/S-curve/ Power Off Tracking Servo...

  • Page 57: 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 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 58 Ech → Xch 20mV/div, AC Grating waveform Fch → Ych 20mV/div, AC 0° 30° 45° 60° 75° 90° DEH-MG2047ZF/XU/UC...

  • Page 59: Test Mode(Cd)

    6.3 TEST MODE(CD) CD Mech. Test Mode [Key] [4] + [6] Test Mode In Operation Display [CD] Source CD Mech Test In [SCAN] CAM MOTOR LOAD MOTOR ELV MOTOR DISC CLAMP SELECTION Mech Test In Selection Selection Selection SELECTION RESET Note: The mechanical operations such as loading, ejection and disc change are controlled by the highly sophisticated method.
  • Page 60 - Electrical and servo errors AVC-LAN Mode Digit Code Name Descriptions error code VD power NG VD power abnormal ERROR 4 Electrical error Mech Vref NG Mech elevation reference voltage abnormal ERROR 4 At the occurrence of error, motor control output (*6) Carriage home NG The CRG cannot move to inner tracks or move from inner tracks.
  • Page 61 AVC-LAN Digit Code Mode Name Descriptions error code MREV2TO Overrun error during CAMRST operation ERROR 3 The CAM SW value (3 bits) before operation The ELV stop position before operation (*5) Claw Err MSPDERR The claws do not close during DSKFREE operation. ERROR 3 MSPDERR ERROR 3...
  • Page 62 Notes: *1) Insertion/ejection error is output only when door open/close error occurs with forced eject. *2) LIFT error is output under the following conditions: LIFTDN --> TLFTUP --> forced eject --> door open/close error *3) The values of m2stat: B.upNg=0, FwdTo=1, RevTo=2, Chata=3, OverCnt=4, SwNg=5, SpdNg=6, Fwd2To=7, Rev2To=8, Sw2Ng=9 *4) The last results of chatter check (compared with the target center): +8LSB=1, +7LSB=2, +6LSB=3, +5LSB=4, +4LSB=5, +3LSB=6, +2LSB=7,...

  • Page 63: General Information

    7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 DISASSEMBLY Removing the Grille Assy (Fig.1) Remove the four screws and then remove the Grille Assy. Fig.1 Grille Assy Removing the Holder Unit (Fig.2) Remove the four screws and then remove the Holder Unit. Holder Unit Fig.2 DEH-MG2047ZF/XU/UC...
  • Page 64 Removing the Chassis Unit (Fig.3) Remove the four screws and then remove the Chassis Unit. Chassis Unit Fig.3 Removing the Tuner Amp Unit (Fig.4) Remove the two screws. Remove the three screws. Straighten the tabs at two locations indicated. Remove the three screws and then remove the Tuner Amp Unit.
  • Page 65 Removing the Case(Fig.5) 1. Remove the eight screws A and then remove the Case. Removing the Control Unit(G2F) (Fig.5) 1. Apply shorting solder to the PU flexible cable before disconnecting it from the connector. 2. Disconnect the two connectors. 3. Remove the two screws B. 4.
  • Page 66 - Cautions on replacing the CD mechanism unit <Initial mode setting method> The CD mechanism units available as service parts 1. Keep a CD mechanism unit out of the product to be have been set in the shipment mode at the factory. serviced as shown below.
  • Page 67 4. Apply shorting solder to the PU flexible cable before disconnecting it from the connector CN12. 5. Disconnect the flexible cable from the connector CN12, and remove the flexible cable Holder. 6. Remove the washer and Arm. (Be careful not to lose the spring B.) (PX1) 7.

  • Page 68: Connector Function Description

    7.1.2 CONNECTOR FUNCTION DESCRIPTION FM/AM ANTENNA J3 CONNECTOR J1 CONNECTOR CDDJ L+ B. UP CDDJ L- RUN/ACC (CDDJ SHIELD) ILL+ MONO+ ILL- MONO- (EHAM) (ASYSON) CDDJ R+ CDDJ R- (CDDJ GND) (CDDJ BATT) (MONO SHIELD) POW GND SPEED MS CAN A START MS CAN B SWC+...

  • Page 69: Parts

    7.2 PARTS 7.2.1 IC TJA1041T VBAT TEMPERATURE TIME-OUT PROTECTION CANH LEVEL ADAPTOR CANH DRIVER CANL CANL VBAT WAKE WAKE COMPARATOR MODE SPLIT CONTROL SPLIT SPLIT FAILURE DETECTOR WAKE-UP VBAT DETECTOR VBAT LOW POWER RECESSIVE RECEIVER DETECTION WAKE NORMAL RECEIVER * S-80843CNUA-B84 * PDH069C :Not used :Power supply...
  • Page 70 - Pin Functions(PD5872B) Pin No. Pin Name Function and operation input/output CAN communication output CAN communication input VFPWR VF display : back light power ILMOUT ILM D/A output VF_DT VF display : data output PWMIN ILM PWM input VF_CLK VF display : clock output Not used SCLKIN Sub clock input...
  • Page 71 Pin No. Pin Name Function and Operation EVST Not used FMUTE Front mute output rpain Reverse parking aid input Tuner stereo input wakeup Wake up sens input ptain PTA interrupt input EHAMPWR EHAM control output pllce2 Tuner : PLL chip eneble output 2 PLLCE Tuner : PLL chip eneble output LOCL...
  • Page 72 - Pin Functions (PD5890A) Pin No. Pin Name Function and Operation STSMO STS test output SPDLFG Spindle FG pulse input TXTSO TEXT control parameter serial output TXTSI TEXT data serial input TXTSCK TEXT clock output BYTE VCC connected CNVSS VSS connected POWER CD : +5V control output CONT...
  • Page 73 Pin No. Pin Name Function and Operation HOME2 Disc clamp claw sense input SBSY Sub code synchronous interrupt signal input CDMUTE CD : Mute output LOAD motor control 2 output LOAD motor control 1 output ELV2 ELV Motor control 2 output ELV1 ELV Motor control 1 output HOME...
  • Page 74 - Pin Functions (SM5903BFP) Pin No. Pin Name Function and Operation VDD2 Power supply terminal UC1-UC5 Micro computer interface : Extension input / output Not used NTEST Test input Clock input (16.9344MHz) Ground terminal YSRDATA Audio : Serial data input YLRCK Audio : Serial LR clock input YSCK...
  • Page 75 - 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 AMIN ANT ADJ COMP MIXER, IF AMP, DET. LDET FMANT RFGND FMRF CF202 IC 3 AM 2ND IF X901 IMG ADJ...

  • Page 76: Display

    7.2.2 DISPLAY - VF (CAW1806) DEH-MG2047ZF/XU/UC...

  • Page 77: Explanation

    7.3 EXPLANATION 7.3.1 SYSTEM BLOCK DIAGRAM Batt Antenna PTA Phone DEH-MG2047ZF/XU/UC Rear Parking Aide Speed Signal Start DEH-MG2047ZF/XU/UC...

  • Page 78: Operational Flow Chart

    7.3.2 OPERATIONAL FLOW CHART Power ON VCC=5V Pin 16,62 bsens Pin 27 bsens=L asens Pin 21 asens=L VFPWR←H Pin 3 Rotary encoder, VF operative SYSPWR←H Pin 40 DSP, AMP operative Source ON Completes power-on operation. (After that, proceed to each source operation) DEH-MG2047ZF/XU/UC...

  • Page 79: Notes On Servicing

    7.4 NOTES ON SERVICING 7.4.1 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 Portions to be cleaned Cleaning tools Fans...

  • Page 80: Operations

    8. OPERATIONS - RADIO SEEK TUNING MANUAL TUNING UP/DOWN UP/DOWN SCAN PRESET CHANNEL RECALL POWER ON/OFF PRESET CHANNEL MEMORY VOLUME - CD TRACK SEARCH CD EJECT CD LOAD UP/DOWN DISC SELECT SCAN FAST POWER ON/OFF REVERSE FORWARD REPEAT COMPRESSION SHUFFLE VOLUME DEH-MG2047ZF/XU/UC...
  • Page 81 - AUDIO AUDIO MODE ADJUSTMENT MUTE CLOCK ADJUSTMENT AUDIO MODE SELECT POWER ON/OFF BALANCE VOLUME • • FADER BASS • TREBLE • CLOCK ADJUST MODE DEH-MG2047ZF/XU/UC...
  • Page 82 - Jigs List Name Jig No. Remarks Test Disc TCD-784 Checking the grating L.P.F. Checking the grating g (Two pieces) Cleaning liquid GEM1004 Cleaning CD pickup lenses Cleaning paper GED-008 Cleaning CD pickup lenses and fans Extension cable GGD1250 Cautions on replacing the CD mechanism unit DEH-MG2047ZF/XU/UC...

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