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Pioneer DEH-P680MP Service Manual

Multi-cd control high power cd/mp3/wma/aac player with fm/am tuner.
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MULTI-CD CONTROL HIGH POWER CD/MP3/WMA/AAC PLAYER WITH FM/AM TUNER
DEH-P680MP
DEH-P6800MP
DEH-P6850MP
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 Description, Mech. Description, Disassembly
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
DEH-P680MP/XN/UC
Remarks
ORDER NO.
CRT3569
/XN/UC
/XN/UC
/XN/ES
K-ZZA.NOV. 2005 Printed in Japan

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   Summary of Contents for Pioneer DEH-P680MP

  • 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.NOV.
  • Page 2: Table Of Contents

    6.4 FREQUENCY CHECK FOR CLOCK ....................... 58 7. GENERAL INFORMATION ..........................59 7.1 DIAGNOSIS ............................. 59 7.1.1 DISASSEMBLY ............................. 59 7.1.2 CONNECTOR FUNCTION DESCRIPTION ..................63 7.2 IC ................................64 7.3 OPERATIONAL FLOW CHART ....................... 75 8. OPERATIONS ..............................76 DEH-P680MP/XN/UC...
  • Page 3: Specifications

    1. SPECIFICATIONS DEH-P680MP/XN/UC...
  • Page 4 DEH-P680MP/XN/UC...
  • Page 5 DEH-P680MP/XN/UC...
  • Page 6: Exploded Views And Parts List

    • Screw adjacent to mark on the product are used for disassembly. • For the applying amount of lubricants or glue, follow the instructions in this manual. (In the case of no amount instructions,apply as you think it appropriate.) 2.1 PACKING DEH-P680MP/XN/UC...
  • Page 7 PACKING SECTION PARTS LIST Mark Description DEH-P680MP/XN/UC DEH-P6800MP/XN/UC DEH-P6850MP/XN/ES Polyethylene Bag CEG1173 CEG1173 CEG-162 Cord Assy XDE7007 XDE7007 XDE7007 Case Assy XXA7417 XXA7417 XXA7417 Owner's Manual XRD7109 XRD7111 XRD7113 Installation Manual XRD7110 XRD7112 XRD7115 Caution Card XRP7002 XRP7002 XRP7002 Caution Card...
  • Page 8: Exterior

    2.2 EXTERIOR 64 66 23 16 DEH-P680MP/XN/UC...
  • Page 9 SUB GRILLE ASS'Y See Contrast table(2) Heat Sink XNR7001 COVER UNIT XXA7428 DRIVE UNIT XXA7406 IC(IC301) PAL007B Screw BMZ26P040FTC Choke Coil(L841) CTH1280 Screw(M2x2) CBA1871 Screw See Contrast table(2) Cord CDE7392 Holder See Contrast table(2) Gear CNV7752 100 Arrestor(AR401) DSP-201M-S00B DEH-P680MP/XN/UC...
  • Page 10 (2) CONTRAST TABLE DEH-P680MP/XN/UC , DEH-P6800MP/XN/UC and DEH-P6850MP/XN/ES are constructed the same except for the following: Mark Description DEH-P680MP/XN/UC DEH-P6800MP/XN/UC DEH-P6850MP/XN/ES Panel XNS7145 XNS7144 XNS7144 Tuner Amp Unit XWM7116 XWM7115 XWM7114 Connector(CN161) CKS4124 CKS4124 Not used Holder XNC7022 XNC7022 XNC7012...
  • Page 11: Cd Mechanism Module

    2.3 CD MECHANISM MODULE DEH-P680MP/XN/UC...
  • Page 12 Bracket CND2583 CND2584 Lever CND2585 CND2586 Bracket CND2587 CND2588 Lever CND2589 Holder CNV7201 Gear CNV7207 Gear CNV7208 Gear CNV7209 Gear CNV7210 Gear CNV7211 Gear CNV7212 Rack CNV7214 CNV7216 Roller CNV7218 Gear CNV7219 Guide CNV7361 Gear CNV7595 Guide CNV7799 CNV7805 DEH-P680MP/XN/UC...
  • Page 13: Block Diagram And Schematic Diagram

    FLPCLS OUT2 RIN +3.3V REGULATOR FM01 FLPOPN OUT1 B.UP14.4V FLAP MOTOR Q851 9.2V Q852 FOPNSW FOPNSW FOPNSW FCLSSW FCLSSW FCLSSW IC851 A:DEH-P680MP/XN/UC NJM2360M Q801 6.3V B.UP14.4V B:DEH-P6800MP/XN/UC SWITCH UNIT DC-DC CONVERT C:DEH-P6850MP/XN/ES OEL+B REGULATOR Q841 Q802 FLPPW 6.3V REGULATOR DEH-P680MP/XN/UC...
  • Page 14 DPDT KEY/OEL CONTROLLER KYDT KYDT KYDT X1831 OEL UNIT IC1841 DSENS 16.000MHz DSENS XOUT PEG144A 10,11 OEL+B18.0V LS,CKD, Q851 OELD,D_SEL 9.2V OEL+B OEL+B 5.1V S1802 5.1V (RESET) IC851 RST1 NJM2360M Q1881 Q1882 DC-DC CONVERTER 12V REGULATOR Q841 VDD5.2V CDILM DEH-P680MP/XN/UC...
  • Page 15: Tuner Amp Unit(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 Detailed page CN901 CD:-19.7dBs IP-Bus: -17.72dBs FM:-24.7dBs AM:-24.8dBs CSN1051 : OPEN SENSE CSN1052 : CLOSE SENSE FLAP MOTOR CN1801 SWITCH UNIT DEH-P680MP/XN/UC...
  • Page 16 10k ohms discrete resistors. Therefore, when replacing, be sure to use parts of *Capacitors Symbol indicates a capacitor. identical designation. Code Practical value No differentiation is made between chip capacitors and 0.01uF 101/10 100uF/10V discrete capacitors. DEH-P680MP/XN/UC...
  • Page 17 A-a A-b CN901 CD:-19.7dBs IP-Bus: -17.72dBs...
  • Page 18 IP-Bus: -17.72dBs FM:-24.7dBs AM:-24.8dBs CSN1051 : OPEN SENSE CSN1052 : CLOSE SENSE FLAP MOTOR CN1801 SWITCH UNIT A-a A-b...
  • Page 19 A-a A-b TUNER AMP UNIT FM:-6.6dBs AM:-6.7dBs IP-Bus:-10.56dBs FM:-6.1dBs CD:-10.56dBs AM:-6.2dBs IP-Bus:-9.68dBs CD:-9.68dBs > REAR R ch REAR L ch >...
  • Page 20 > FUSE CEK1208 BACK UP 600µH FM:19.9dBs AM:19.8dBs IP-Bus:16.32dBs CD:16.32dBs For resistors and capacitors in the circuit diagrams, their resistance values or capacitance values are expressed in codes: NOTE : Ex. *Resistors The > mark found on some component parts indicates Symbol indicates a resistor.
  • Page 21: Keyboard Unit

    3.3 KEYBOARD UNIT DEH-P680MP/XN/UC...
  • Page 22 KEYBOARD UNIT PD8153A (P680MP) PD8154A (P6800MP, P6850MP) OEL UNIT DEH-P680MP/XN/UC...
  • Page 23: Cd Mechanism Module

    3.4 CD MECHANISM MODULE 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 CXC4166 SPINDLE MOTOR M2 CXC4026 LOADING/CARRIAGE MOTOR DEH-P680MP/XN/UC...
  • Page 24 SIGNAL LINE FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE CD CORE UNIT(S10.5COMP1) + 3.3 V REGULATOR CD CONTROLLER CN651 DEH-P680MP/XN/UC...
  • Page 25 A-a C-b 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.
  • Page 26 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 CXC4166 SPINDLE MOTOR M2 CXC4026 LOADING/CARRIAGE MOTOR A-a C-b...
  • Page 27 C-a C-b SIGNAL LINE FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE CD CORE UNIT(S10.5COMP1) + 3.3 V REGULATOR...
  • Page 28 CD CONTROLLER CN651 C-a C-b...
  • Page 29 200 mV/div 500 mV/div ! TE 500 mV/div 8 TIN 500 mV/div CD-ROM play operation(Regular track Jump) Spindle waveform during play operation Spindle waveform during play operation (Wider) Ref.: Ref.: Ref.: REFO REFO REFO Mode: Mode: Mode: Normal Normal Normal DEH-P680MP/XN/UC...
  • Page 30 500 mV/div 4 LOEJ 3 12SNS 8 TIN 5 V/div 5 V/div 500 mV/div CD-DA → CD-ROM mode change(Band key) 12 cm CD Eject operation 8 cm CD Eject operation Ref.: Ref.: Ref.: REFO Mode: Mode: Mode: Normal Normal Normal DEH-P680MP/XN/UC...
  • Page 31 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 REFO Mode: Mode: Normal Normal DEH-P680MP/XN/UC...
  • Page 32: Pcb Connection Diagram

    CORD ASSY IP-BUS include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic dia- gram. 2.Viewpoint of PCB diagrams Capacitor Connector SIDE A SIDE B P.C.Board Chip Part CN651 DEH-P680MP/XN/UC...
  • Page 33 SIDE A ANTENNA JACK WIRED REMOTE CONTROL AR401 CN651 CN801 CN871 IC801 FLAP MOTOR CSN1052 CSN1051 SWITCH UNIT CN901 CN1801 FRONT DEH-P680MP/XN/UC...
  • Page 34 TUNER AMP UNIT DEH-P680MP/XN/UC...
  • Page 35 SIDE B DEH-P680MP/XN/UC...
  • Page 36: Cd Core Unit(s10. 5comp1)

    4.2 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-P680MP/XN/UC...
  • Page 37 SIDE B CD CORE UNIT(S10.5COMP1) 12EJ DSCSNS DEH-P680MP/XN/UC...
  • Page 38: Keyboard Unit

    4.3 KEYBOARD UNIT SIDE B KEYBOARD UNIT SIDE A KEYBOARD UNIT IC1871 CN1801 CN871 OEL UNIT CN1802 DEH-P680MP/XN/UC...
  • Page 39: Electrical Parts List

    (A,123,59) IC (P6850MP/XN/ES) PEG143A D 801 (A,141,19) Diode HZS7L(A3) IC 631 (A,154,66) IC S-80835CNMC-B8U D 802 (A,151,15) Diode 1SS133 IC 801 (A,147,26) IC BA6288FS D 803 (A,147,15) Diode 1SS133 IC 851 (B,43,26) IC NJM2360M IC 971 (A,16,96) IC NJM2388F84 DEH-P680MP/XN/UC...
  • Page 40 (A,12,116) RS1/16S472J R 405 (B,169,131) RS1/16S681J R 113 (A,14,113) RS1/16S472J R 114 (B,32,115) RS1/16S223J R 406 (B,167,125) RS1/16S681J R 115 (B,32,113) RS1/16S472J R 407 (B,169,137) RS1/16S681J R 408 (B,167,137) RS1/16S681J R 161 (A,121,127) (P680MP/XN/UC) RS1/16S102J R 501 (A,54,72) RS1/16S683J DEH-P680MP/XN/UC...
  • Page 41 C 210 (A,123,108) CKSRYB104K16 R 871 (A,152,52) RS1/16S102J C 211 (A,123,106) CKSRYB104K16 R 872 (A,113,41) RS1/16S102J C 212 (A,69,94) CEJQ1R0M50 R 873 (A,152,51) RS1/16S0R0J C 213 (A,62,94) CEJQ1R0M50 R 879 (B,108,26) RS1/16S473J C 214 (A,75,80) CEJQ1R0M50 R 880 (B,109,32) RS1/16S104J DEH-P680MP/XN/UC...
  • Page 42 (B,128,125) Transistor IMH3A C 653 (A,36,51) CEJQ101M16 Q 313 (B,142,121) Transistor IMH3A Q 501 (A,49,65) Transistor 2SC4081 C 654 (A,44,59) CEJQ101M16 Q 502 (B,121,123) Transistor DTC124EU C 657 (B,95,32) CKSRYB152K50 Q 503 (A,129,116) Transistor UMD2N C 658 (B,95,30) CKSRYB152K50 DEH-P680MP/XN/UC...
  • Page 43 (A,161,108) Inductor LAU1R0K R 311 (B,153,109) RS1/16S821J L 601 (A,96,50) Ferri-Inductor LAU100K R 312 (B,143,110) RS1/16S821J L 651 (A,76,45) Ferri-Inductor LAU100K R 313 (B,134,121) RS1/16S0R0J L 831 (A,131,27) Ferri-Inductor LAU100K R 314 (B,126,119) RS1/16S821J L 852 (A,42,21) Inductor CTF1660 DEH-P680MP/XN/UC...
  • Page 44 (B,19,87) RS1/16S103J R 665 (B,73,39) RS1/16S104J R 972 (B,54,66) RS1/16S102J R 666 (B,90,44) RS1/16S104J R 667 (B,94,26) RS1/16S104J CAPACITORS R 668 (B,73,36) RS1/16S682J C 101 (B,21,135) CKSRYB104K16 R 669 (B,73,38) RS1/16S682J C 102 (A,25,119) CKSRYB473K25 R 801 (A,137,19) RD1/4PU561J DEH-P680MP/XN/UC...
  • Page 45 C 402 (A,144,71) CEJQ1R0M50 Unit Name : Keyboard Unit C 403 (A,153,71) CEJQ470M6R3 C 407 (A,161,113) CEJQ101M16 MISCELLANEOUS C 408 (B,175,140) CKSRYB103K50 C 409 (B,165,131) CCSRCH470J50 IC 1811 (A,12,74) IC GP1UX31RK IC 1831 (A,38,109) IC S-1200B33-M5 C 411 (A,157,95) CEJQ470M6R3 DEH-P680MP/XN/UC...
  • Page 46 R 1821 (B,23,15) RS1/16S181J R 1822 (B,23,9) RS1/16S221J C 1820 (A,4,52) CKSRYF104Z25 R 1823 (B,16,15) RS1/16S181J C 1821 (A,38,60) CKSRYF104Z25 R 1824 (B,16,8) RS1/16S221J C 1822 (A,16,38) CKSRYF104Z25 C 1823 (A,37,154) CKSRYF104Z25 R 1825 (B,14,34) RS1/16S181J C 1824 (B,31,67) CKSRYB473K25 DEH-P680MP/XN/UC...
  • Page 47 C 237 (A,31,67) CKSSYB104K10 C 239 (A,46,74) CCSSCH220J50 R 229 (A,44,72) RS1/16SS472J R 232 (A,46,75) RS1/16SS122J C 246 (A,42,80) CKSSYB104K10 R 241 (B,26,63) RS1/16SS333J C 250 (A,42,81) CKSRYB102K50 R 243 (B,26,62) RS1/16SS333J C 251 (A,41,83) CKSRYB102K50 R 245 (B,26,69) RS1/16SS333J DEH-P680MP/XN/UC...
  • Page 48 C 703 (B,28,42) CKSSYB103K16 C 706 (B,34,43) CKSSYB104K10 C 707 (A,36,57) CKSSYB104K10 C 714 (A,24,41) CKSSYB104K10 C 722 (B,29,45) CKSQYB475K6R3 C 903 (B,14,54) CKSSYB471K50 C 907 (B,14,62) CKSSYB103K16 Miscellaneous Parts List Pickup Unit(P10.5)(Service) CXX1942 Motor Unit(SPINDLE) CXC4166 Motor Unit(LOADING/CARRIAGE) CXC4026 DEH-P680MP/XN/UC...
  • Page 49: Adjustment

    1k ohms in series. • The load and eject operation is not guarantied with the mechanism upside down. If the mechanism is blocked due to mistaken eject operation, reset the product or turn off and on the ACC to restore it. DEH-P680MP/XN/UC...
  • Page 50 • When the power is turned on/off the jump mode is reset to the Single TR (91) while the gain of the RFAMP is reset to 0 dB. At the same time all the self-adjusting values shall return to the default setting. DEH-P680MP/XN/UC...
  • Page 51: Checking The Grating After Changing The Pickup Unit

    Because of eccentricity in the disc and a slight misalignment of the clamping center the grating waveform may be seen to "wobble" ( the phase difference changes as the disc rotates). The angle specified above indicates the average angle. • Hint Reloading the disc changes the clamp position and may decrease the "wobble". DEH-P680MP/XN/UC...
  • Page 52 Ech → Xch 20mV/div, AC Grating waveform Fch → Ych 20mV/div, AC 0° 30° 45° 60° 75° 90° DEH-P680MP/XN/UC...
  • Page 53: Error Mode

    Remarks: Mechanical errors are not displayed (because a CD is turned off in these errors). Unreadable TOC does not constitute an error. An intended operation continues in this case. Upper digits of an error code are subdivided as shown below: 1x: Setup relevant errors, 3x: Search relevant errors, Ax: Other errors. DEH-P680MP/XN/UC...
  • Page 54: Frequency Check For Clock

    The frequency of the clock signal is 625.0kHz that is one 32th of the fundamental frequency. The clock signal should be 625.0kHz. If the clock signal is out of the range, the X'tal (X601) should be replaced with new one. DEH-P680MP/XN/UC...
  • Page 55: General Information

    - Removing the CD Mechanism Module (Fig.1) Remove the four screws. Disconnect the connector and then remove the CD Mechanism Module. Fig.1 - Removing the Grille Assy (Fig.2) Remove the four screws. Disconnect the connector and then remove the Grille Assy. Grille Assy Fig.2 DEH-P680MP/XN/UC...
  • Page 56 - Removing the Tuner Amp Unit (Fig.3) Remove the two screws. Straighten the tabs at three locations indicated. Remove the screw and then remove the Tuner Amp Unit. Tuner Amp Unit Fig.3 DEH-P680MP/XN/UC...
  • Page 57 Upper Frame. 3. While lifting the Carriage Mechanism, remove it from the three Dampers. Caution: When assembling, be sure to apply some alcohol to the Dampers and assemble the mechanism in a clamped state. Damper Damper Carriage Mechanism Lower Frame DEH-P680MP/XN/UC...
  • Page 58 Assemble the sub unit side of the Pickup, taking the plate (Chassis) in-between. When treating the leads of the Load Carriage Motor Assy, do not make them loose over the Feed Screw. Poly Washer Change Arm Pickup Lock Arm Inner Holder Feed Screw Planet Gear Pickup Rack Chassis Pickup DEH-P680MP/XN/UC...
  • Page 59 ANTENNA JACK REAR OUTPUT WIRED REMOTE CONTROL SUBWOOFER OUTPUT (P680MP,P6800MP) FRONT OUTPUT 1. BUS+ 2. GND 3. GND 16 14 12 10 8 4. NC 5. BUS- 15 13 11 9 7 6. GND 7. BUS L+ 8. ASENB 9 RL- 9.
  • Page 60: Deh-p680mp/xn/uc 3

    Ground for 1.6 V digital circuits D1.GND C33M Output of 33.8688 MHz(CLK for SDRAM) DRAM cs (rcs) Output of DRAM address 11 RA11 Output of DRAM CKE (CKE) Output of DRAM ras Output of DRAM lower cas(LDQM) cas)(LDQM) cas!(UDQM) Output of DRAM upper cas(UDQM) DEH-P680MP/XN/UC...
  • Page 61 Output of TE Output of LD Input of PD Ground for digital circuits D.GND IC's marked by * are MOS type. * UPD63763CGJ Be careful in handling them because they are very liable to be damaged by electrostatic induction. DEH-P680MP/XN/UC...
  • Page 62 VDCONT VD power supply control output CD LSI serial data input CD LSI serial data output CD LSI serial clock output xwait CD LSI wait control signal output CD LSI address strobe output XASTB Address/data Bus 0 Not used DEH-P680MP/XN/UC...
  • Page 63 77-90 Not used 91-93 csens Not used Not used TYPE_A/D 96,97 Not used Not used TEMP VD power supply short sense input VDSENS Not used DSCSNS * PE5505A Format meaning C MOS * NJM2886DL3-33 Thermal Protection Bandgap Reference CONTROL DEH-P680MP/XN/UC...
  • Page 64 For consumption current reduction Not Used TUNPCE2 TUNER : Chip enable output TUNPCE1 TUNER : Chip enable output ROMCS ROM correction : Chip select output ASENS ACC sense input BSENS Back up sense input ROMCK ROM correction : Clock output DEH-P680MP/XN/UC...
  • Page 65 AD translation power supply input terminal TUNER : Signal level input Vref AD translation reference voltage AVcc AD translation power supply input terminal PBUS input PBUS output BSCK PBUS clock output *PEG142A,*PEG143A S-1200B33-M5 VOUT SHORT CIRCUIT PROTECT ON/OFF CIRCUIT REFERENCE VOLTAGE ON/OFF DEH-P680MP/XN/UC...
  • Page 66 *PAL007B sw_vcc amp_vcc sw_vcc stby 12 13 14 15 16 17 20 21 22 23 24 25 10 11 18 19 *PML016A - Pin Layout DEH-P680MP/XN/UC...
  • Page 67 - Block Diagram DEH-P680MP/XN/UC...
  • Page 68 Address bus output VCC2 Address bus output VSS2 63-70 A7-0 Address bus output 71-86 D15-0 Data bus input/output Not used JOYST Joystick input 89,90 Not used kd#-! 91-93 Key data input AVSS Key data input VREF AVCC 98-100 Not used DEH-P680MP/XN/UC...
  • Page 69 * PEG144A * PD8153A,*PD8154A HA12241FP -BUS +BUS BIAS DRIVER OUTPUT (current) A0-A19 :Address input D0-D15 :Data output RECEIVER CS1, 2 :Bank address OUTPUT ROMCE :Chip enable input :Read strobe AVCC :Power supply ROMCE AVCC :GND R out GP1UX31RK AVCC Vout DEH-P680MP/XN/UC...
  • Page 70 22 AUDIOGND audio ground Ground of audio block 23 L ch O L channel output FM stereo “L-ch” signal output or AM audio output 24 R ch O R channel output FM stereo “R-ch” signal output or AM audio output DEH-P680MP/XN/UC...
  • Page 71: Operational Flow Chart

    In case of the above signal, the communication with Grille microcomputer may fail. Source keys If the time interval is not 300msec, the oscillator operative may be defective. Source ON SYSPW←H Pin 1 Completes power-on operation. (After that, proceed to each source operation) DEH-P680MP/XN/UC...
  • Page 72: Operations

    8. OPERATIONS DEH-P680MP/XN/UC...
  • Page 73 DEH-P680MP/XN/UC...
  • Page 76 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 Cleaning tools CD pickup lenses Cleaning liquid : GEM1004 Cleaning paper : GED-008 g p p DEH-P680MP/XN/UC...

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