Pioneer DEH-M8037ZT Service Manual Download Page 73

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DEH-M8037ZT/UC

VCC=5V

Pin 62

Power ON

bsen

asen

YES

VCC=5V

Pin 16

bsen

Pin 19

asen

Pin 20

SYSPW

←

Pin 49

IPPW

←

Pin 47

swvdd

←

Pin 73

Source keys
operative

Completes power-on operation.
(After that, proceed to each source operation)

Source ON

7.3.2 OPERATIONAL FLOW CHART

Summary of Contents for DEH-M8037ZT

Page 1: ...K ZZD APR 2003 Printed in Japan ORDER NO CRT3062 SCION AUDIO SYSTEM SINGLE CD DECK DEH M8037ZTUC Service Manual TOYOTA DEH M8037ZT UC For details refer to Important symbols for good services VEHICLE DESTINATION PRODUCED AFTER TOYOTA PART No ID No PIONEER MODEL No xA xB U S A April 2003 86120 0W080 T1801 DEH M8037ZT UC This service manual should be used together with the following manual s Model No...

Page 2: ...y be caused during transit the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual if necessary 1 Product safety You should conform to the regulations governing the product safety radio and noise and other regulations and should keep the safety during servicing by following the safety instructions described in this manual SAFETY...

Page 3: ...ONNECTION DIAGRAM 30 4 1 MAIN UNIT 30 4 2 KEYBOARD UNIT 34 4 3 CD MECHANISM MODULE 36 5 ELECTRICAL PARTS LIST 38 6 ADJUSTMENT 45 6 1 CONNECTION DIAGRAM 45 6 2 TEST MODE 46 6 3 CD ADJUSTMENT 47 6 4 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT 49 6 5 ERROR MODE 51 6 6 AVC LAN DIAGNOSIS MODE 52 7 GENERAL INFORMATION 56 7 1 DIAGNOSIS 56 7 1 1 DISASSEMBLY 56 7 1 2 CONNECTOR FUNCTION DESCRIPTION ...

Page 4: ...kg Audio Tone controls Bass Frequency 55 Hz Level 11 dB 13 dB Treble Frequency 14080 Hz Level 8 dB 10 dB Maximum power output 40 W 4 Load impedance 4 Ω CD player System Compact disc audio system Usable discs Compact disc Signal format Sampling frequency 44 1 kHz Number of quantization bits 16 linear Number of channels 2 stereo MP3 decoding format MPEG1 2 Audio Layer 3 AM tuner Frequency range 530 ...

Page 5: ... CHP2140 10 Protector CHP2141 11 Owner s Manual CRB1826 English Mark No Description Part No Mark No Description Part No NOTE Parts marked by are generally unavailable because they are not in our Master Spare Parts List Screws 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 instruc...

Page 6: ...6 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC 2 2 EXTERIOR ...

Page 7: ...nit CWE1630 29 Holder CNC8855 30 Chassis Unit CXC1012 31 Screw BPZ20P100FTC 32 Button EJECT CAC7884 33 Button PWR CAC7885 34 Button HOME CAC7887 35 Button SSP CAC7889 36 Button 1 2 CAC7890 37 Button 3 4 CAC7891 38 Button 5 6 CAC7892 39 Button SCAN TEXT CAC7893 40 Button A CAC7894 41 Button UP CAC7895 42 Button M CAC8074 43 Button DOWN CAC8075 44 Cover CNM7433 45 Cushion CNM8306 46 Lighting Conduct...

Page 8: ...1GEM1024 2GEM1045 3GEM1035 1 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 2 2 1 3 8 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC 2 3 CD MECHANISM MODULE ...

Page 9: ... Arm CNC9968 39 Arm CNC9973 40 Lever CNC9983 41 Lever CNC9984 42 Sheet CNM8134 43 Collar CNV6906 44 Guide CNV6925 45 Arm CNV7198 46 Rack CNV7199 47 Holder CNV7201 48 Holder CNV7202 49 Arm CNV7203 50 Gear CNV7207 51 Gear CNV7208 52 Gear CNV7209 53 Gear CNV7210 54 Gear CNV7211 55 Gear CNV7212 56 Rack CNV7214 57 Arm CNV7215 58 Arm CNV7216 59 Guide CNV7217 60 Roller CNV7218 61 Gear CNV7219 62 Arm CNV7...

Page 10: ...X1 X2 31 reset 15 IC 781 HA12187FP AVC LAN DRIVER 42 SYSMUTE XOUT XIN SYSTEM CONTROL IC 701 2 2 PD5861A CN501 SWVDD AUDIO B ANTENNA JACK 1 2 BUS BUS BUS L BUS L 1 2 8 6 5 TX RX IPPW CN1601 13 X701 15 dsprst dsperr I 49 SYSPW ILLPWM 28 CN473 IC 331 NJM4558MD 7 5 6 IC 561 HA12181FP 9 16 3 BLDA 3 cdej 74 AM NOISE CANCELER AM FM L Q502 LOCL PDIO A C MAIN UNIT FM AM TUNER UNIT Q561 3 10 5 4 19 2 VD Q14...

Page 11: ...DD 3 3V REGULATOR VDD 3 8 18 27 37 49 76 77 96 ILL pck ce 89 DMI Q561 6 20 VCC BU S 812C56AUA C3K IC 421 3 2 Q421 Q422 swvdd 73 VDD BU Q805 SYSPW Q802 Q804 Q803 SYSPW Q441 Q442 BU SYSPW AUDIO B Q850 Q852 PWM BKLTB 9 Q410 ILL SWVDD BU Q451 Q452 SYSPW AMP Q806 SWVDD TLMT 43 TELMUTE IC 782 1 2VCC BU Q454 Q455 Q453 44 FMPW 45 AMPW ANT Q807 AUDIO B Q808 SVR 10 Q563 Q565 AUDIO B AMB AMPW 45 LCE LRST LOF...

Page 12: ...AL PARTS LIST A a A BDATA FM AM TUNER UNIT B CN901 C CN901 2 4 1 5 6 3 DIGITAL SOUND P SOURCE SELE ELECTRIC VO SYSTEM CONTROLLER AM PNS ANTENNA JACK 2 4 1 5 3 CD 0 1dBs 1kHz 0dB AM 12 7dBs FM 27dBs 400Hz 30 mod AM 13 2dBs FM 27dBs AM 28dBs CD 0dBs AVC LAN 0dBs FM AM 9 CD AVC LAN 12 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC 3 2 OVERALL CONNECTION DIAGRAM GUIDE PAGE ...

Page 13: ...ion Symbol indicates a resistor No differentiation is made between chip resistors and discrete resistors NOTE Symbol indicates a capacitor No differentiation is made between chip capacitors and discrete capacitors 2 4 1 5 6 3 2 4 1 5 6 3 2 4 1 5 6 3 2 4 1 5 6 3 AL SOUND PROCESSOR SOURCE SELECTOR ELECTRIC VOLUME LER POWER AMP AVC LAN 8 23dBs 1kHz 0dB FM 12dBs AM 9 2dBs CD 1dBs AVC LAN 1dBs FM 14dBs...

Page 14: ...3 DIGITAL SOUND PROCESSOR SOURCE SELECTOR ELECTRIC VOLUME AM PNS ANTENNA JACK 2 4 1 5 3 AM 12 7dBs FM 27dBs 400Hz 30 mod AM 13 2dBs FM 27dBs AM 28dBs CD 0dBs AVC LAN 0dBs FM 12dBs AM 9 2dBs CD 1dBs AVC LAN 1dBs 14 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC ...

Page 15: ...A a A b A a A a A b 5 6 7 BDATA B CN901 C CN901 SYSTEM CONTROLLER CD 0 1dBs 1kHz 0dB 15 5 6 7 8 F E D C B A 5 6 7 8 DEH M8037ZT UC ...

Page 16: ...A a A b A b 1 2 3 4 A MAIN UNIT ESSOR OR ME POWER AMP AVC LAN 8 23dBs 1kHz 0dB FM 14dBs AM 16 8dBs CD 27dBs AVC LAN 27dBs 16 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC ...

Page 17: ...factor of the part Therefore when replacing be sure to use parts of identical designation Symbol indicates a resistor No differentiation is made between chip resistors and discrete resistors NOTE Symbol indicates a capacitor No differentiation is made between chip capacitors and discrete capacitors 2 4 1 5 6 3 2 4 1 5 6 3 2 4 1 5 6 3 2 4 1 5 6 3 17 5 6 7 8 F E D C B A 5 6 7 8 DEH M8037ZT UC ...

Page 18: ... B KEYBOARD UNIT DISC AUDIO CONTROL AM FM1 2 UP VOL SAT 6 MUTE 5 SCAN DOWN VOL 4 2 UP TUNE TEXT UP FOL 1 3 DOWN TUNE SSP DOWN FOL HOME PWR EJECT 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC 3 3 KEYBOARD UNIT ...

Page 19: ...19 B A CN479 5 1 3 2 6 4 5 6 7 8 F E D C B A 5 6 7 8 DEH M8037ZT UC ...

Page 20: ... SWITCH ON OFF S903 DSCSNS SWITCH ON OFF S904 12EJ SWITCH ON OFF S905 8EJ SWITCH ON OFF The underlined indicates the original switch position 5 3 3 CD DRIVER SW 3 3 REGULATOR 1 2 3 5 6 7 8 0 F T T F T T F F F F T T F F T T S S C T F C T F S C T F F F T T C C S S S S C C T T F F 20 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC 3 4 CD MECHANISM MODULE GUIDE PAGE ...

Page 21: ...RE UNIT S10MP3 C A CN1601 CN901 D RAM 3 3 REGULATOR MICRO COMPUTER 4 9 F T C S SIGNAL LINE FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE 21 5 6 7 8 F E D C B A 5 6 7 8 DEH M8037ZT UC ...

Page 22: ...A a C b C a C a C b CN101 PICKUP UNIT SERVICE P10 0 F T T F T T F F F F T T F F T T S S C T F C T F T T F F 22 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC ...

Page 23: ... S10MP3 S901 HOME SWITCH ON OFF S902 CLAMP SWITCH ON OFF S903 DSCSNS SWITCH ON OFF S904 12EJ SWITCH ON OFF S905 8EJ SWITCH ON OFF The underlined indicates the original switch position 5 3 3 CD DRIVER SW 3 3 REGULATOR 1 2 3 5 6 7 8 S C T F F F T T C C S S S S C C 23 5 6 7 8 F E D C B A 5 6 7 8 DEH M8037ZT UC ...

Page 24: ...C a C b C b CD CORE UNIT S10MP3 C D RAM 9 F T C S SIGNAL LINE FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE 24 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC ...

Page 25: ...C a C b C b 1 2 3 A CN1601 CN901 3 3 REGULATOR MICRO COMPUTER 4 25 5 6 7 8 F E D C B A 5 6 7 8 DEH M8037ZT UC ...

Page 26: ...tting up Source On Ref REFO Mode Normal FE 8 FIN 0 TE 7 TIN 500mV div 500mV div 500mV div 500mV div 20ms div Ref REFO Mode Normal FE 8 FIN 0 TE 7 TIN 500mV div 500mV div 500mV div 500mV div 20ms div During Play CD DA During Play CD ROM Track Jump is generated periodically Refer to Track Jump waveform Ref REFO Mode Normal MDX 5 SIN 500mV div 200mV div 50ms div Spindle waveform during Play Ref REFO ...

Page 27: ...ND Mode Normal RFAGC 0 TE 7 TIN 1V div 500mV div 500mV div 1ms div 32 Track Jump Ref REFO Mode TEST RFAGC 7 TIN 0 TE 8 FIN 1V div 1V div 1V div 1V div 500µs div Ref REFO Mode Normal RFAGC 0 TE 7 TIN 1V div 500mV div 500mV div 5ms div 100 Track Jump When passing black dots 800µm Ref REFO Mode TEST During inside outside search outer circumference inner circumference LOUT ROUT 1V div 1V div 200µs div...

Page 28: ... div 500ms div Ref REFO Mode Normal 5 SIN 6 CIN 7 TIN 1V div 500mV div 500mV div 500ms div Ref REFO Mode Normal When switching to CD ROM from CD DA BAND key When switching to CD DA from CD ROM BAND key 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC ...

Page 29: ...29 5 6 7 8 F E D C B A 5 6 7 8 DEH M8037ZT UC ...

Page 30: ...unted 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 2 Viewpoint of PCB diagrams B CN901 CAR HARNESS CAR HARNESS 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC 4 PCB CONNECTION DIAGRAM 4 1 MAIN UNIT ...

Page 31: ...31 A SIDE A FRONT C CN901 ANTENNA FM AM TUNER UNIT CAR HARNESS MAIN 5 6 7 8 F E D C B A 5 6 7 8 DEH M8037ZT UC ...

Page 32: ...32 A A MAIN UNIT 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC ...

Page 33: ...33 A SIDE B 5 6 7 8 F E D C B A 5 6 7 8 DEH M8037ZT UC ...

Page 34: ...R TEXT HOME SCAN 6 5 4 SAT FM1 2 3 DISC 2 MUTE DOWN VOL AUDIO CONTROL UP VOL SSP 1 EJECT DOWN FOL UP FOL DOWN TUNE UP TUNE AM B G COM R B G COM R B G COM R B G COM R 34 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC 4 2 KEYBOARD UNIT ...

Page 35: ...B B KEYBOARD UNIT SIDE B A CN479 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 35 5 6 7 8 F E D C B A 5 6 7 8 DEH M8037ZT UC ...

Page 36: ...36 C C CD CORE UNIT S10MP3 SIDE A A CN1601 PICKUP UNIT SERVICE P10 M2 LOADING CARRIAGE MOTOR M1 SPINDLE MOTOR HOME 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC 4 3 CD MECHANISM MODULE ...

Page 37: ...37 C C CD CORE UNIT S10MP3 SIDE B CLAMP DSCSNS 8EJ 12EJ 5 6 7 8 F E D C B A 5 6 7 8 DEH M8037ZT UC ...

Page 38: ...R5 B3 D 442 Diode 1SS355 D 451 Diode DAN202K D 452 Diode 1SS355 D 471 Diode P300JL 6059 D 472 Diode MPG06G 6415G50 D 473 Diode MPG06G 6415G50 D 474 Diode 1SS355 D 475 Diode 1SS355 D 702 Diode 1SS355 D 781 Diode UDZS18 B D 782 Diode UDZS18 B D 802 Diode HZU8R2 B3 D 804 Diode 1SS355 D 876 Diode UDZS5R6 B D 1411 Diode HZU6R2 B2 L 351 Inductor CTF1379 L 352 Inductor CTF1379 L 353 Inductor CTF1379 L 35...

Page 39: ...RS1 16S473J R 471 RS1 4S101J R 472 RS1PMF680J R 473 RS1 16S0R0J R 522 RS1 16S222J R 524 RS1 16S222J R 525 RS1 16S473J R 526 RS1 16S681J R 527 RS1 16S681J R 528 RS1 16S681J R 529 RS1 16S103J R 530 RS1 16S681J R 531 RS1 16S473J R 532 RS1 16S473J R 533 RS1 16S472J R 534 RS1 16S393J R 535 RS1 16S473J R 536 RS1 16S473J R 537 RS1 16S473J R 538 RS1 16S681J R 539 RS1 16S681J R 541 RS1 16S0R0J R 542 RS1 16...

Page 40: ...3J R 810 RS1 16S104J R 811 RS1 16S103J R 812 RS1 16S223J R 813 RS1 16S472J R 814 RS1 16S103J R 815 RS1 10S681J R 816 RS1 16S473J R 817 RS1 16S473J R 818 RS1 16S473J R 819 RS1 16S473J R 853 RS1 16S102J R 854 RS1 16S471J R 855 RS1 16S222J R 856 RS1 16S242J R 857 RS1 16S102J R 858 RS1 16S471J R 859 RS1 16S152J R 860 RS1 16S222J R 870 RS1 16S472J R 871 RS1 8S222J R 872 RS1 10S103J R 873 RS1 16S123J R ...

Page 41: ...EJQ3R3M50 C 562 CKSRYB333K25 C 563 CEJQNP1R0M50 C 564 CQMA683J50 C 565 CQMA333J50 C 566 CQMA333J50 C 567 CQMA333J50 C 568 CKSRYB224K10 C 569 CKSRYB473K50 C 570 CKSRYB153K50 C 571 CKSRYB472K50 C 572 CEJQ101M10 C 573 CKSRYB392K50 C 574 CKSRYB334K10 C 575 CKSRYB102K50 C 585 CKSRYB223K50 C 713 CSZS100M16 C 781 CKSRYB104K25 C 782 CKSRYB223K50 C 783 CKSRYB103K50 C 801 CFTNA224J50 C 802 CFTNA224J50 C 803...

Page 42: ... 16S102J R 930 RS1 16S820J R 931 RS1 16S820J R 932 RS1 16S820J R 933 RS1 16S820J R 936 RS1 16S820J R 937 RS1 16S820J R 938 RS1 16S820J R 939 RS1 16S820J R 940 RS1 16S820J R 941 RS1 16S820J R 942 RS1 16S820J R 943 RS1 16S820J R 944 RS1 16S820J R 945 RS1 16S820J R 949 RS1 16S910J R 950 RS1 16S910J R 951 RS1 16S910J R 955 RS1 16S910J R 956 RS1 16S910J R 957 RS1 16S910J R 960 RS1 16S102J R 961 RS1 16S...

Page 43: ... 16SS0R0J R 242 RAB4CQ221J R 243 RAB4CQ221J R 244 RAB4CQ221J R 245 RAB4CQ221J R 246 RAB4CQ221J R 247 RAB4CQ221J R 248 RS1 16SS221J R 249 RS1 16SS221J R 301 RS1 16SS183J R 302 RS1 16SS822J R 303 RS1 16SS0R0J R 304 RS1 16SS183J R 305 RS1 16SS822J R 306 RS1 16SS0R0J R 307 RS1 16SS183J R 308 RS1 16SS822J R 309 RS1 16SS183J R 310 RS1 16SS822J R 311 RS1 16SS0R0J R 601 RS1 16S101J R 602 RS1 16S101J R 603...

Page 44: ...KSSYB104K10 C 238 CKSSYB104K10 C 239 CCSSCH9R0D50 C 242 CKSSYB104K10 C 243 CKSSYB104K10 C 245 CKSSYB104K10 C 246 CKSSYB104K10 C 301 CKSSYB331K50 C 302 CKSSYB331K50 C 303 CKSSYB472K25 C 304 CKSSYB472K25 C 305 CEV101M16 C 306 CKSRYB224K16 C 601 CCSRCH102J50 C 602 CCSRCH102J50 C 603 4 7µF 25V CCH1508 C 604 4 7µF 25V CCH1508 C 701 CKSSYB104K10 C 702 CKSSYB471K50 C 703 CKSSYB103K16 C 704 CEV1R0M50 C 70...

Page 45: ...6 7 8 DEH M8037ZT UC 6 ADJUSTMENT 6 1 CONNECTION DIAGRAM Head unit DEH M8037ZT UC 12P AVC LAN cable 82372 AA010 HDE0058 or HDE0060 GEX M8087XMZT XN UC GGF 146 Power supply cable XM antenna unit AN 90XM or TOYOTA model XM tuner ...

Page 46: ...rmal display Rest the Microcomputer to returning to the normal mode 1 Notes 1 Note that the test mode is cancelled in the system microcomputer by switching the ACC OFF and ON but that it is not in the CD microcomputer Use the reset function for complete cancellation of the test mode SAT SAT SAT3 SAT3 1 6 DISC for 5 seconds XM Error displayed To XM Error displayed mode BAND Select ACCOFF Source Sel...

Page 47: ... will not work Avoid applying any mechanical or electrical shock to the mechanism during adjustment The RFI and RFO signals with a wide frequency range are easy to oscillate When observing the signals insert a resistor of 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 t...

Page 48: ...imeter Tracking close and AGC and Applicable servo AGC AGC display switching RF gain select Offset adjustment display Tracking balance adjustment Tracking open Focus Close S Curve Rough Servo RF AGC F T RF AGC CRG TR Jump Toward inner perimeter TEXT 5 Focus open Jump off MIN SEC TRK MIN SEC TRK 00 00 00 MIN SEC TRK 99 99 99 3 RF AMP Gain Select 1 MIN SEC TRK 00 00 00 MIN SEC TRK MIN SEC TRK MIN SE...

Page 49: ...uttons move the PU unit to the innermost track 3 Press key 4 to close focus the display should read 91 Press key 3 to implement the tracking balance adjustment the display should now read 81 Press key 4 The display will change returning to 81 on the fourth press 4 As shown in the diagram above monitor the LPF outputs using the oscilloscope and check that the phase difference is within 75 Refer to ...

Page 50: ...50 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC Grating waveform 45 0 75 60 30 90 Ech Xch 20mV div AC Fch Ych 20mV div AC ...

Page 51: ... or WMA file present in a disc No MP3 or WMA file exists in a CD ROM disc inserted 17 Electricity Setup NG AGC protection doesn t work out of Focus soon Scratch on Disc Severe dirt and vibration 12 Electricity Spindle Lock NG Not spindle lock Wrong subcode can t read Subcode NG RF amp NG Defective Spindle Scratch and dirt on Disc Intense vibration The appropriate gain of the RF amp cannot be obtai...

Page 52: ...rom the details display mode The diagnosis memory data for devices selected is cleared After memory clearance is completed the mode is automatically shifted to the service check mode 6 Key operations for Memory clearance 6 Key operations for Memory clearance Memory clearance automatically ends 3 Key operations for entering Service check mode 4 Key operations for entering the details display mode 5...

Page 53: ...Physical address for selected devices The physical address number is displayed whose check result details will follow it Ex P360 Physical address number CD CH Diagnosis data source The detailed items depend on the data source Ex SyS The data was obtained from system check Logical address The logical address number for the device with failure is displayed Ex 1L_63 Logical address number CD CH The l...

Page 54: ...ion DISP M U Rear TV with movie mode Navigation with controls MONET ECU Vehicle Information ECU 1 DIN Navigation DISPLAY with SW Europe GW ECU Consolidated inside panel Gateway ECU FM multiplex DISPLAY Steering SW Navigation remote controller Fr controlled SW Simple LCD Consolidated SW MD CH commander Body computer 0 8 1 7 9 F 0 8 1 7 9 F 0 1 F 0 8 C 1 7 9 8 D F 0 1 F Navigation computer ATIS VICS...

Page 55: ...n no response Last mode abnormal Command order no response Mode status abnormal Transmission fault Master reset Slave reset Master abnormal Registration completion acknowledgement error Voice processor ON abnormal ON OFF command or parameter abnormal Registration command transmission Multiple frames intermit Diagnosis no response 00 01 10 11 12 13 20 21 22 23 24 25 26 27 28 29 2A 30 31 D0 D1 D2 D4...

Page 56: ...he Case Removing the Case not shown 2 Disconnect the connector and then remove the CD Mechanism Module 1 Fig 1 Release the two latches Removing the Grille Assy Fig 1 3 3 Grille Assy 2 2 1 1 4 4 2 Release the two latches 3 Release the two latches 4 Release the two latches and then remove the Grille Assy 7 GENERAL INFORMATION 7 1 DIAGNOSIS 7 1 1 DISASSEMBLY ...

Page 57: ... five locations indicated 2 1 1 1 2 1 Main Unit 2 Remove the two screws and then remove the Main Unit 1 1 Fig 2 Removing the Chassis Fig 2 Remove the two screws 3 2 1 2 2 Chassis 2 Remove the three screws and then remove the Heat Sink 3 Remove the five screws and then remove the Chassis 1 3 3 3 3 Heat Sink ...

Page 58: ...e two springs C and the four screws 2 To remove the upper frame open it on the fulcrum A 3 While lifting the carriage mechanism remove the three dampers 4 With the frames removed insert the connectors coming from the main unit and eject the disc Caution Before installing the carriage mechanism in the frames be sure to apply some alcohol to the dampers and set the mechanism to the clamp mode Do not...

Page 59: ...wires from the inner holder 4 Remove the two washers styling holder change arm and pickup lock arm 5 While releasing from the hook of the inner holder lift the end of the feed screw Caution In assembling move the planet gear to the load eject position before setting the feed screw in the inner holder Planet Gear Change Arm Inner Holder Styling Holder Feed Screw Washer Pickup Lock Arm Shorting Sold...

Page 60: ... DEH M8037ZT UC FM AM ANTENNA POWER SUPPLY SPEAKER OUTPUT AVC LAN EXTENSION RR TLMT ILL RL FR FL GND ANT AMP ILL ACC B RR RL FR FL SLD R R L L MUTE B GND TX TX ACC CMP GND SW1 SW2 TX1 TX1 CMP SLD 7 1 2 CONNECTOR FUNCTION DESCRIPTION ...

Page 61: ...Tuner FM stereo input 27 locl O Local L output 28 ILLPWM O Phase width modulation output for illumination dimmer control 29 RX1 I IP BUS Data input 30 TX O IP BUS Data output 31 BSO O P BUS Serial data output 32 BSI I P BUS Serial data input 33 BSCK O P BUS Serial clock output 34 DSPOK I DSP Interface monitor input 35 DSPDO O DSP Data output 36 DSPDI I DSP Data input 37 DSPCK O DSP Serial clock ou...

Page 62: ...ata output 87 DDCK O LED driver Clock output 88 DDST O LED driver Strobe input 89 DMI I Rheostat signal input 90 NC Not used 91 SRSSW1 I Steering switch 1 input 92 93 NC Not used 94 TEMP Temperature detect input 95 SRSSW2 I Steering switch 2 input 96 AVSS GND 97 SL I Tuner SD level input 98 VREF I A D converter reference voltage 99 AVCC Analog power supply 100 PDI I Tuner Data input 30 31 50 51 80...

Page 63: ...29 DACO6 O DAC6 output 30 AOUT6 O DAC6 volume output 31 GNDA6 DAC6GND 32 GND Digital section GND 33 36 TEST0 3 I Test setting 0 3 37 VDD Digital section VDD 38 41 TP0 3 O Test port 0 3 42 CKI0 I DAC clock input 0 43 TP4 O Test port 4 44 CKI1 I DAC clock input 1 45 TP5 O Test port 5 46 CKO0 O General purpose clock output 0 47 TP6 O Test port 6 48 CKO1 O General purpose clock output 1 49 VDD Digital...

Page 64: ... ADC microphone input 80 GNDM ADC microphone input GND 81 86 LIN 1 6 I ADC Lch input 1 6 87 92 RIN 1 6 I ADC Rch input 1 6 93 GNDAL ADC Lch input GND 94 OUTL O ADC Lch selector output 95 VRAL ADC Lch operation amp reference potential 96 VDA ADC input power supply 97 VRAR ADC Rch operation amp reference potential 98 OUTR O ADC Rch selector output 99 GNDAR ADC Rch input GND 100 GNDX Crystal oscillat...

Page 65: ...34 REGC Connected to the capacity stabilizing output of the regulator an electrolytic capacitor of about 1µF 35 X2 Oscillator connection for mainclock 36 X1 I Oscillator connection for mainclock 37 VSS GND 38 VDD Positive power supply 5V 39 CLKOUT O C Internal system clock output Open 40 xwrite O CD LSI write control signal output 41 42 NC Not used Open 43 xread O CD LSI read control signal output...

Page 66: ... P Bus reset input 90 ejsw I Eject key input 91 4 16 I C DRAM 4M 16M selection L 4M H 16M 92 NC Open 93 CLAMP I C CLAMP SW sense input 94 ROMDATA I O C E2PROM data input output 95 ROMCS O C E2PROM chip selection output 96 ROMCK O C E2PROM clock output 97 FRXD I For flash rewriting received signal 98 FTXD O C For flash rewriting transmitted signal 99 NC Open 100 BSI I P Bus serial data input PE5370...

Page 67: ...tal oscillator 38 XTAL1 Connected to the crystal oscillator 16 9344MHz 39 xtal Connected to the crystal oscillator 16 9344MHz 40 41 X GND Ground for the crystal oscillator 42 xtal Connected to the crystal oscillator 24 576MHz 43 XTAL2 Connected to the crystal oscillator 24 576MHz 44 X VDD Power supply for the crystal oscillator 45 D GND GND for digital circuits 46 DIN I Input of audio data 47 DOUT...

Page 68: ... 115 RFI I Input of RF 116 AGCO O Output of RF 117 AGCI I Input of AGC 118 RFO O Output of RF AGC 119 120 EQ2 1 Equalizer 2 1 121 RF2 I Reversal input of RF2 122 RF I Reversal input of RF 123 A GND Ground for the analog system 124 A I Input of A 125 C I Input of C 126 B I Input of B 127 D I Input of D 128 F I Input of F 129 E I Input of E 130 A VDD Power supply for the analog system 131 REFOUT O O...

Page 69: ...Q12 37 DQ11 36 DQ10 35 DQ9 32 NC 31 lcas 30 hcas 29 oe 28 A8 27 A7 26 A6 25 A5 24 A4 23 VSS VCC 1 43 DQ16 44 VSS A0 A8 Address input ras Row address strobe lcas Lower column address strobe ucas Upper column address strobe DQ1 DQ16 Data input data output oe Output enable we Write enable VCC Power supply VSS GND NC No connection 1 2 3 VIN VOUT VSS Reference Voltage MSM51V4265EP 70TS S 812C33AUA C2N ...

Page 70: ...ble Active at High To be grounded at 47kΩ 17 AMPNS AM PNS IF signal IF signal output for AM PNS circuit 18 LDET O lock detector Active at Low To be pulled up to the VDD at 47kΩ 19 CREQ I current request Active at Low To be grounded at 47kΩ 20 AMINI AM audio input The frequency response and the level are set by connecting an external CR network with terminal AMIN as terminal AMDET r in 50kΩ 21 COMP...

Page 71: ...SEG13 SEG14 SEG15 SEG16 SEG17 COM 0A SEG18 SEG19 SEG20A SEG62A SEG21 SEG22A SEG23A SEG24A SEG25A SEG26A SEG27 SEG28A SEG29A SEG30A SEG31 SEG32A SEG33A SEG34A SEG35A SEG36 SEG37 SEG38 SEG39 SEG40 SEG41 SEG42 SEG43 SEG44 SEG45 SEG46 SEG47 SEG48 SEG49 SEG50 SEG51 SEG52 SEG53 SEG54 SEG55 SEG56 SEG57 SEG58 SEG59 SEG60 COM 0A COM 1 COM 2 COM 3 COM 4 COM 5 COM 6 COM 7 COM 0A COM 0A COM 0A COM 0A COM 0A C...

Page 72: ...72 1 2 3 4 1 2 3 4 F E D C B A DEH M8037ZT UC DEH M8037ZT UC GEX M8087XMZT XN UC XM ANTENNA PIONEER H U XM TUNER VEHICLE B ACC BUS SIGNAL SOUND 7 3 EXPLANATION 7 3 1 SYSTEM BLOCK DIAGRAM ...

Page 73: ...5V Pin 62 Power ON bsen L asen L YES VCC 5V Pin 16 bsen Pin 19 asen Pin 20 SYSPW H Pin 49 IPPW H Pin 47 swvdd L Pin 73 Source keys operative Completes power on operation After that proceed to each source operation Source ON 7 3 2 OPERATIONAL FLOW CHART ...

Page 74: ...M8037ZT UC 7 4 CLEANING Before shipping out the product be sure to clean the following portions by using the prescribed cleaning tools Portions to be cleaned Cleaning tools CD pickup lenses Cleaning liquid GEM1004 Cleaning paper GED 008 ...

Page 75: ...st low pitched tones The display ranges from 5 to 5 TRE Adjust high pitched tones The display ranges from 5 to 5 FAD Adjust the sound balance between the rear and front speakers The dis play ranges from R7 to F7 BAL Adjust the sound balance between the left and right speakers The dis play ranges from L7 to R7 4 SSP Scion Sound Processing SSP is a modified DSP Digital Signal Processing system that ...

Page 76: ... is object outside 2FM1 2 1AM 4TUNE 3TUNE5 5PRESET1 6 6SCAN 4 TUNE DOWN Press to manually select one step at a time the station with the next lower frequency Press and hold until you hear a beep and automatic station selection begins to select stations in order of decreasing frequency 5 PRESET 1 6 Press to recall previously memorized stations Preset Channels Press and hold until you hear a beep an...

Page 77: ...in to cancel RND is always displayed regard less of this operation 6 PRESET 2 Repeat If you press this is indicated in the display and starts to repeat the track being played Press again to cancel RPT is always displayed regardless of this operation 7 PRESET 5 1 While this is pressed play of the track is reversed 8 PRESET 6 While this is pressed play of the track is fast forwarded 9 SCAN If you pr...

Page 78: ... operation 7 PRESET 2 Repeat If you press this is indicated in the display and starts to repeat the file being played Press again to cancel If you press and hold until you hear a beep is indicated in the dis play and starts to repeat the folder being played Press again to cancel RPT is always displayed regardless of this operation 8 PRESET 5 1 While this is pressed play of the track is reversed Th...

Page 79: ...eceived When Channel Category is displayed TYPE is indicated press again to switch to the next category 5 TYPE DOWN Press to see Channel Category of channel that is currently received When Channel Category is displayed TYPE is indicated press again to switch to the previous category 6 PRESET 1 6 Press to recall previously memorized channels Preset Channels Press and hold until you hear a beep and ...

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