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Pioneer DEH-M8047ZT/UC Service Manual
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Pioneer DEH-M8047ZT/UC Service Manual

Pioneer DEH-M8047ZT/UC Service Manual

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SCION AUDIO SYSTEM SINGLE CD DECK
DEH-M8047
VEHICLE
DESTINATION
xA, xB, tC
U.S.A., CANADA
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.
Order No.
DEH-M8037ZT/UC
CRT3062
CX-3057
CRT3026
EXPLODED VIEWS AND PARTS LIST
PACKING(Page 5)
- PACKING SECTION PARTS LIST
Mark No.
Description
8
Contain Box
11 Owner's Manual
PIONEER CORPORATION
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
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 EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2004
PIONEER CORPORATION 2004
TOYOTA
PRODUCED AFTER
TOYOTA PART No.
May 2004
86120-0W100
Mech.Module
S10MP3
CD Mech. Module:Circuit Description, Mech. Description, Disassembly
DEH-M8037ZT/UC
CHL5058
CRB1826
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
ZT
ID No.
PIONEER MODEL No.
T1804
DEH-M8047ZT/UC
Remarks
DEH-M8047ZT/UC
CHL5227
CRB1933
K-ZZD. APR. 2004 printed in Japan
ORDER NO.
CRT3251
/UC

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  • Page 1 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan 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 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 EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.
  • Page 2 EXTERIOR(Page 6) - EXTERIOR SECTION PARTS LIST Mark No. Description DEH-M8037ZT/UC DEH-M8047ZT/UC CD Mechanism Module(S10MP3) CXK5680 CXK5682 Case CNB2842 CNB3036 12 Main Unit CWM8737 CWM9479 50 Keyboard Unit CWM8738 CWM9481 58 Grille Unit CXC1323 CXC3124 CD MECHANISM MODULE(Page 8) - CD MECHANISM MODULE SECTION PARTS LIST Mark No.
  • Page 3 CD Core Unit (S10MP3) Circuit Symbol & No. Part Name DEH-M8037ZT/UC DEH-M8047ZT/UC IC701 PE5370B PE5441A R735 Not used RS1/16SS473J Page 23 6-A DEH-M8047ZT/UC...
  • Page 4 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 2003 K-ZZD. APR. 2003 Printed in Japan...

  • Page 5: Safety Information

    [ Important symbols for good services ] In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them: 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.

  • Page 6: 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 CD MECHANISM MODULE ............................8 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM......................10 3.1 BLOCK DIAGRAM .................................10 3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) ....................12 3.3 KEYBOARD UNIT ................................18 3.4 CD MECHANISM MODULE(GUIDE PAGE)........................20 4.

  • Page 7: Specifications

    1. SPECIFICATIONS General AM tuner Power source ... . . 13.2 V DC Frequency range ..530 1710 kHz – (10.5 16.0 V allowable) –...

  • Page 8: Exploded Views And Parts List

    2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKING 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.

  • Page 9: Exterior

    2.2 EXTERIOR DEH-M8037ZT/UC...
  • Page 10 - EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ26P050FTC 51 LCD CAW1809 2 Screw BSZ26P140FTC 52 Connector(CN901) CKS4671 3 Screw BSZ30P080FTC 53 Holder CND1423 4 ••••• 54 Sheet CNM8437 5 Connector CDE7172 55 Lighting Conductor CNV7540...

  • Page 11: Cd Mechanism Module

    2.3 CD MECHANISM MODULE 1GEM1024 2GEM1045 3GEM1035 DEH-M8037ZT/UC...
  • Page 12 - CD MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 CD Core Unit(S10MP3) CWX2810 46 Rack CNV7199 2 Connector(CN101) CKS4182 47 Holder CNV7201 3 Connector(CN901) CKS4017 48 Holder CNV7202 4 Screw BMZ20P035FTC 49 Arm CNV7203 5 Screw...

  • Page 13: Block Diagram And Schematic Diagram

    3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM MAIN UNIT FM/AM TUNER UNIT FM/AM 1ST IF 10.7MHz MPXREF 41kHz CN501 AMRF T51 Q51 CF51 CF52 CF53 AMDET AMANT ANTENNA L ch FM L JACK IC 2 FM MPX R ch AMIN ANT ADJ COMP...
  • Page 14 RESET Q441 IC 782 AUDIO+B RESET S-80835CNNB-B8U 1/2VCC Q442 Q421 Q422 SYSPW SWVDD swvdd IC 421 S-812C56AUA-C3K Q404 B SENSE bsen Q563 asen AUDIO+B A SENSE Q402 SYSTEM CONTROL AMPW isen IC 701(1/2) Q565 PD5861A ANT +B I SENSE Q403 Q454 locl CN471...

  • Page 15: Overall Connection Diagram(Guide Page)

    3.2 OVERALL CONNECTION DIAGRAM(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 FM/AM TUNER UNIT ANTENNA JACK FM:-27dBs AM:-28dBs FM:-27dBs Detailed page (400Hz,30% mod) CD: 0dBs AVC-LAN: 0dBs...
  • Page 16 MAIN UNIT POWER AMP FM: +14dBs AM:+16.8dBs CD: +27dBs AVC-LAN: +27dBs AL SOUND PROCESSOR, SOURCE SELECTOR, ELECTRIC VOLUME FM: -12dBs AM:-9.2dBs CD: +1dBs AVC-LAN: +1dBs > AVC-LAN:+8.23dBs (1kHz,0dB) 5.0V NOTE : Symbol indicates a resistor. Decimal points for resistor No differentiation is made between chip resistors and and capacitor fixed values discrete resistors.
  • Page 17 DEH-M8037ZT/UC...
  • Page 18 CN901 DEH-M8037ZT/UC...
  • Page 19 DEH-M8037ZT/UC...
  • Page 20 DEH-M8037ZT/UC...

  • Page 21: Keyboard Unit

    3.3 KEYBOARD UNIT KEYBOARD UNIT DISC MUTE AUDIO CONTROL UP(TUNE) DOWN(TUNE) FM1/2 SCAN TEXT UP(VOL) DOWN(VOL) UP(FOL) DOWN(FOL) HOME EJECT DEH-M8037ZT/UC...
  • Page 22 DEH-M8037ZT/UC...

  • Page 23: Cd Mechanism Module(Guide Page)

    3.4 CD MECHANISM MODULE(GUIDE PAGE) PICKUP UNIT (SERVICE)(P10) CN101 SWITCHES: CD CORE UNIT(S10MP3) S901 : HOME SWITCH..ON-OFF S902 : CLAMP SWITCH..ON-OFF S903 : DSCSNS SWITCH..ON-OFF 5/3.3 S904 : 12EJ SWITCH..ON-OFF S905 : 8EJ SWITCH..ON-OFF The underlined indicates the original switch position. SPINDLE MOTOR M1 CXB6007 LOADING/CARRIAGE...
  • Page 24 CD CORE UNIT(S10MP3) D-RAM SIGNAL LINE FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE & CN901 3.3 REGULATOR MICRO COMPUTER CN1601 DEH-M8037ZT/UC...
  • Page 25 DEH-M8037ZT/UC...
  • Page 26 DEH-M8037ZT/UC...
  • Page 27 DEH-M8037ZT/UC...
  • Page 28 DEH-M8037ZT/UC...
  • Page 29 - Waveforms Note : 1. The encircled numbers denote measuring points in the circuit diagram. 2. Reference voltage REFO1(1.65V) 1 DSCSNS 1 DSCSNS 5 SIN 5V/div 500ms/div 5V/div 500ms/div 1V/div 2s/div 2 CLCONT 2 CLCONT 6 CIN 5V/div 5V/div 500mV/div 3 LOEJ 3 LOEJ 7 TIN...
  • Page 30 8 FIN 0 TE # RFAGC 500mV/div 200ms/div 500mV/div 2ms/div 1V/div 500µs/div ! FE # RFAGC 0 TE 500mV/div 500mV/div 500mV/div 7 TIN 500mV/div Focus Search When "Tracking Open" 1 Track Jump Ref.: Ref.: Ref.: REFO REFO REFO Mode: Mode: Mode: TEST TEST...
  • Page 31 5 SIN 5 SIN 1V/div 500ms/div 1V/div 500ms/div 6 CIN 6 CIN 500mV/div 500mV/div 7 TIN 7 TIN 500mV/div 500mV/div When switching to CD-ROM from CD-DA When switching to CD-DA from CD-ROM (BAND key) (BAND key) Ref.: Ref.: REFO REFO Mode: Mode: Normal...
  • Page 32 DEH-M8037ZT/UC...

  • Page 33: Pcb Connection Diagram

    4. PCB CONNECTION DIAGRAM 4.1 MAIN UNIT NOTE FOR PCB DIAGRAMS MAIN 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 34 SIDE A CAR HARNESS ANTENNA MAIN CN901 FRONT DEH-M8037ZT/UC...
  • Page 35 MAIN UNIT DEH-M8037ZT/UC...
  • Page 36 SIDE B DEH-M8037ZT/UC...

  • Page 37: Keyboard Unit

    4.2 KEYBOARD UNIT KEYBOARD UNIT SIDE A DEH-M8037ZT/UC...
  • Page 38 KEYBOARD UNIT SIDE B CN479 DEH-M8037ZT/UC...

  • Page 39: Cd Mechanism Module

    4.3 CD MECHANISM MODULE SIDE A CD CORE UNIT(S10MP3) LOADING /CARRIAGE MOTOR SPINDLE MOTOR CN1601 HOME PICKUP UNIT (SERVICE)(P10) DEH-M8037ZT/UC...
  • Page 40 SIDE B CD CORE UNIT(S10MP3) 12EJ DSCSNS CLAMP DEH-M8037ZT/UC...

  • Page 41: Electrical Parts List

    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 42 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S102J RS1/16S222J RS1/16S102J RS1/16S473J RS1/16S102J RS1/16S681J RS1/16S472J RS1/16S681J RS1/16S472J RS1/16S681J RS1/16S473J RS1/16S103J RS1/16S473J RS1/16S681J RS1/16S473J RS1/16S473J RS1/16S473J RS1/16S473J RS1/16S183J RS1/16S472J RS1/16S183J RS1/16S393J RS1/16S183J...
  • Page 43 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S0R0J RS1/10S681J RS1/16S473J RS1/16S473J RS1/16S102J RS1/16S473J RS1/16S0R0J RS1/16S473J RS1/16S0R0J RS1/16S473J RS1/16S0R0J RS1/16S102J RS1/16S102J RS1/16S471J RS1/16S473J RS1/16S222J RS1/16S472J RS1/16S242J RS1/16S0R0J RS1/16S102J RS1/16S471J RS1/16S471J RS1/16S0R0J...
  • Page 44 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CEALNP4R7M35 CQMA333J50 CEAL101M10 CQMA333J50 CKSRYB104K25 CKSRYB224K10 CEALNP4R7M35 CKSRYB473K50 CKSRYB104K25 CKSRYB153K50 CKSRYB222K50 CKSRYB472K50 CKSRYB105K10 CEJQ101M10 CKSRYB103K50 CKSRYB392K50 CEJQ470M10 CKSRYB334K10 CKSRYB104K25 CKSRYB102K50 CKSRYB104K25 CKSRYB223K50 CKSRYB104K25...
  • Page 45 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- SML-310YT RS1/16S820J SML-310YT RS1/16S820J SML-310YT RS1/16S820J SML-310YT RS1/16S820J SML-310YT RS1/16S820J SML-310YT RS1/16S820J SML-310YT RS1/16S820J SML-310YT RS1/16S910J SML-310YT RS1/16S910J Inductor CTF1379 RS1/16S910J Inductor CTF1379...
  • Page 46 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Inductor CTF1386 RS1/16SS0R0J Inductor CTF1386 RS1/16SS183J Inductor CTF1386 RS1/16SS822J Inductor CTF1386 RS1/16SS0R0J Inductor CTF1386 RS1/16SS183J Inductor CTF1386 RS1/16SS822J Inductor CTF1386 RS1/16SS183J Inductor CTF1386...
  • Page 47 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CCSRCH101J50 Miscellaneous Parts List CKSSYB104K10 CEV100M16 Pickup Unit(Service)(P10) CXX1664 CKSSYB471K50 Motor Unit(SPINDLE) CXB6007 CKSSYB104K10 Motor Unit(LOADING/CARRIAGE) CXB8933 CKSSYB104K10 CEV220M6R3 CKSSYB103K16 CKSSYB103K16 CEV221M4 CKSSYB104K10...

  • Page 48: Adjustment

    6. ADJUSTMENT 6.1 CONNECTION DIAGRAM GGF-146 Power supply cable Head unit DEH-M8037ZT/UC 12P AVC-LAN cable 82372-AA010(HDE0058 or HDE0060) XM tuner GEX-M8087XMZT/XN/UC XM antenna unit AN-90XM or TOYOTA model DEH-M8037ZT/UC...

  • Page 49: Test Mode

    6.2 TEST MODE [1] + [6] + [DISC]: 3 times Key to be pressed [SAT] DIAG IN Operation All-element lighting Display [3] + [TUNE DOWN] [DISC] + [TUNE UP] [SAT] Error number displayed PBUS Test Mode In SAT3 CD ERRXX PBUS TEST SAT3 [DISC]: for 3 seconds...

  • Page 50: Cd Adjustment

    6.3 CD ADJUSTMENT 1) Cautions on adjustments 2) Test mode • In this product the single voltage (3.3V) is used for the This mode is used to adjust the CD mechanism module. regulator. The reference voltage is the REFO1 (1.65V) •...
  • Page 51 - Flow Chart [1]+[6]+[DISC]3times Diag Mode In [DISC]+[TUNE UP] Test Mode In PBUS TEST [Key] [DISC] 3sec Diag off Contents Display [DISC] Source CD Power ON Power ON RF AMP Gain Select *1 (T.OFFSET adjustment required) (T.OFFSET adjustment not required) [TUNE UP] [TUNE DOWN] Power Off...

  • Page 52: Checking The Grating After Changing The Pickup Unit

    6.4 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 mechanism 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 53 Ech → Xch 20mV/div, AC Grating waveform Fch → Ych 20mV/div, AC 0° 30° 45° 60° 75° 90° DEH-M8037ZT/UC...

  • Page 54: Error Mode

    6.5 ERROR MODE - Error Messages Error is displayed with number for Error cause when CD is inoperative or stops with Error during operation. The purpose is to reduce nonsense calls from users as well as to assist all related analysis and repair for defects at service station.

  • Page 55: Avc-Lan Diagnosis Mode

    6.6 AVC-LAN DIAGNOSIS MODE DEH-M8037ZT/UC...
  • Page 56 DEH-M8037ZT/UC...
  • Page 57 DEH-M8037ZT/UC...
  • Page 58 DEH-M8037ZT/UC...

  • Page 59: General Information

    7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 DISASSEMBLY Removing the Grille Assy (Fig.1) Grille Assy Release the two latches. Release the two latches. Release the two latches. Release the two latches and then remove the Grille Assy. Fig.1 Removing the Case (not shown) 1.
  • Page 60 Removing the Chassis (Fig.2) Heat Sink Remove the two screws. Remove the three screws and then remove the Heat Sink. Remove the five screws and then remove the Chassis. Chassis Fig.2 Removing the Main Unit (Fig.3) Straighten the tabs at five locations indicated.
  • Page 61 - How to hold the Mechanism Unit 1. Hold the top and bottom frame. 2. Do not squeeze top frame's front portion too tight, because it is fragile. Do not squeeze. - Removing the Upper and Lower Frames 1. With a disc clamped, remove the four springs (A), Upper Frame the two springs (B), the two springs (C), and the four screws.
  • Page 62 - Removing the Pickup Unit 1. Apply shorting solder to the Pickup flexible cable. Shorting Disconnect the cable. Solder 2. Set the mechanism to the clamp mode. 3. Remove the lead wires from the inner holder. 4. Remove the two washers, styling holder, change arm, and pickup lock arm.

  • Page 63: Connector Function Description

    7.1.2 CONNECTOR FUNCTION DESCRIPTION DEH-M8037ZT/UC...

  • Page 64: Parts

    7.2 PARTS 7.2.1 IC - Pin Functions (PD5861A) Pin No. Pin Name Function and Operation Tuner : Data output Tuner : Serial clock output BLDA Dimmer control DA output for back light LCD driver : Chip enable output LCD driver : Data output LCD driver : Data input LCD driver : Clock output BYTE...
  • Page 65 Pin No. Pin Name Function and Operation POWER POWER key input 65– 72 Not used swvdd Switched VDD control output cdej CD eject key sense input 75– 80 Not used TESTIN Test program mode input BSREQ P-BUS : Service request input BRXEN P-BUS : Reception enable input BRST...
  • Page 66 - Pin Function (PM2010A) Pin No. Pin Name Function and Operation Crystal oscillator connection or clock input Crystal oscillator connection Crystal oscillator power supply GNDA1 DAC1GND AOUT1 DAC1 volume output DACO1 DAC1 output VLI1 DAC1 volume input VDD12 DAC1, DAC2 power supply VLI2 DAC2 volume input DACO2...
  • Page 67 Pin No. Pin Name Function and Operation Reset Digital section VDD VDAM ADC microphone input power supply VARM ADC microphone input operation amp reference potential ADC microphone input GNDM ADC microphone input GND 81-86 LIN-1-6 ADC Lch input 1-6 87-92 RIN-1-6 ADC Rch input 1-6 GNDAL...
  • Page 68 - Pin Functions (PE5370B) Pin No. Pin Name Format Function and Operation P-Bus serial data output bsck P-Bus serial clock input/output Not used (Open) EVDD E power supply Positive power supply EVSS E power supply GND 8-10 Not used (Open) 11-13 MEMO0-2 Shock proof memory buffer quantity output 0-2...
  • Page 69 Pin No. Pin Name Format Function and Operation Connected to EVDD or EVSS via the resistor xint CD LSI interruption signal input wint Connected to EVDD or EVSS via the resistor brst P-Bus reset input ejsw Eject key input 4/16 DRAM 4M/16M selection (L : 4M, H : 16M) Open CLAMP...
  • Page 70 - Pin Functions (UPD63760GJ) Pin No. Pin Name Function and Operation R.GND GND for DRAM I/F Input of reset AB12-8 Address bus 12-8 from the microcomputer 8-15 AD7-0 Address/data bus 7-0 to the microcomputer Chip selection ASTB Address strobe read Control signals (read) write Control signals (write)
  • Page 71 Pin No. Pin Name Function and Operation 73-88 RDB0-15 Input/output of DRAM Data0-15 D.GND Ground for digital circuits 90-99 RA0-9 Output of DRAM Address0-9 D.VDD Power supply for digital circuits 101-104 TEST0-3 Connected to GND Output of focus drive PWM Output of tracking drive PWM Output of thread drive PWM Output of spindle drive PWM...
  • Page 72 * MSM51V4265EP-70TS * S-812C33AUA-C2N 44 VSS 43 DQ16 42 DQ15 41 DQ14 Reference Voltage 40 DQ13 39 VSS A0-A8 :Address input 38 DQ12 ras : Row address strobe 37 DQ11 lcas : Lower column address strobe ucas : Upper column address strobe 36 DQ10 DQ1-DQ16 : Data input/data output oe : Output enable...
  • Page 73 - 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 74: Display

    7.2.2 DISPLAY - LCD(CAW1809) DEH-M8037ZT/UC...

  • Page 75: Explanation

    7.3 EXPLANATION 7.3.1 SYSTEM BLOCK DIAGRAM XM ANTENNA DEH-M8037ZT/UC GEX-M8087XMZT/XN/UC VEHICLE PIONEER XM TUNER +B, ACC SIGNAL(SOUND) DEH-M8037ZT/UC...

  • Page 76: Operational Flow Chart

    7.3.2 OPERATIONAL FLOW CHART Power ON VCC=5V Pin 62 VCC=5V Pin 16 bsen Pin 19 bsen=L asen Pin 20 asen=L swvdd←L Pin 73 IPPW←H Pin 47 SYSPW←H Pin 49 Source keys operative Source ON Completes power-on operation. (After that, proceed to each source operation) DEH-M8037ZT/UC...

  • Page 77: Cleaning

    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 DEH-M8037ZT/UC...

  • Page 78: Operations

    8. OPERATIONS Basic Operation Your audio system works when the 3AUDIO CONTROL ignition switch is in the “ ACC” or “ ON” position. NOTICE 1POWER In order to prevent too much electric discharge, do not leave the car audio on longer 4SSP than necessary when the engine is not running.
  • Page 79 Listening to the RADIO NOTICE 5PRESET1–6 Attaching any film or window tint film (especially conduc- tive or metallic type) on the 6SCAN rear glass will noticeably reduce the sensitivity of the radio. 3TUNE5 *The car with a pole antenna 4TUNE∞ is object outside.
  • Page 80 Listening to a CD NOTICE 8¡ 6Repeat • Never try to disassemble or oil any part of the compact disc player. Do not insert anything except a compact 2EJECT disc into the slot. 9SCAN • You can load an 8 cm disc 5Random without using an adaptor.
  • Page 81 Listening to a MP3 DISC If you select a MP3 disc, 7Repeat 9¡ indicated in the display. < > 1 FILE 5 Press to proceed to the next file. < > 2 FILE ∞ 0SCAN DOWN 6Random Pressing once takes you back to the !TEXT start of the file currently playing.
  • Page 82 Listening to a XM Satellite Radio broad- 6PRESET1–6 cast 1 SAT 7SCAN Switches between the SAT 1/2/3 8TEXT modes. < > 2 TUNE 2TUNE5 Pressing this lets you select the next higher channel. 3TUNE∞ If you press and hold, you can rapidly scroll forward through the channels.
  • Page 83 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 2003 K-ZZA. FEB. 2003 Printed in Japan...
  • Page 84 1. CIRCUIT DESCRIPTIONS Recently, most CD LSI's have included DAC, RF amplifier and other peripheral circuits, as well as the core circuit DSP. This series of mechanisms employ a multi-task LSI UPD63760GJ, which has CD-ROM decoder and MP3 decoder in addition to the CD block as shown in the Fig.1.0.1.
  • Page 85 1.1 PREAMPLIFIER BLOCK (UPD63760GJ: IC201) In the preamplifier block, the pickup output signals are processed to generate signals that are used for the next-stage blocks: the servo block, demodulator, and control. After I/V-converted by the preamplifier with built-in photo detectors (inside the pickup), the signals are applied to the preamplifier block in the CD LSI UPD63760GJ (IC201).
  • Page 86 1.1.2 RF and RFAGC amplifiers The photo-detector outputs (A + C) and (B + D) are added, amplified, and equalized inside this LSI, and then provided as the RF signal from the RFI terminal. The RF signal can be used for eye-pattern check. The low frequency component of the RFO voltage is: RFO = (A + B + C + D) x 2 The RFO is used for the FOK generation circuit and RF offset adjustment circuit.
  • Page 87 1.1.3 Focus error amplifier The photo-detector outputs (A + C) and (B + D) are applied to the differential amplifier and the error amplifier to obtain the (A + C - B - D) signal, which is then provided from the pin 91 as the FE signal. The low frequency component of the FE voltage is: FE = (A + C - B - D) x 8.8/10k x 111k/61k x 160k/64k = (A + C - B - D) x 6.0...
  • Page 88 1.1.6 Tracking zero-cross amplifier The tracking zero-cross signal (hereinafter TEC signal) is obtained by amplifying the TE signal 4 times, and used to detect the tracking-error zero-cross point. By using the information on this point, the following two operations can be performed: 1.
  • Page 89 1.2 SERVO BLOCK (UPD63760GJ: IC201) The servo block controls the servo systems for error signal equalizing, in-focus, track jump and carriage move and so on. The DSP block is a signal-processing block, where data decoding, error correction, and compensation are per- formed.
  • Page 90 Search start Output from FD terminal The broken line in the figure is assumed in the case A blind period without focus servo. FE controlling signals You can ignore this for blind periods. FSS bit of SRVSTS1 resistor RFOK signals The status of focus close is judged from the statuses of FSS and RFOK after about 10mS.
  • Page 91 UPD63760GJ BA5996FM DIG. 13 TOP LENS CONTROL JUMP PARAMETERS Fig. 1.2.3 Block diagram of the tracking servo system BRAKE KICK T. BRAKE GAIN UP EQUALIZER GAIN NORMAL NORMAL OPEN T. SERVO CLOSED Fig. 1.2.4 Single-track jump CX-3057...
  • Page 92 (10 TRACK) GAIN UP EQUALIZER 50mS NORMAL T. BRAKE OPEN SERVO CLOSED 2.9mS (4.10 TRACK JUMP) 5.8mS (32 TRACK JUMP) Fig. 1.2.5 Multi-track jump LENS MOVING FORWARDS LENS MOVING BACKWARDS (INNER TRACK TO OUTER) (TEC "SQUARED UP" ) (INTERNAL SIGNAL ) MIRR MIRR LATCHED AT TZC EDGES...
  • Page 93 1.2.3 Carriage servo system In the carriage servo system, the low frequency component from the tracking equalizer (the information on the lens position) is transferred to the carriage equalizer, where the gain is increased to a certain level, and then sent out from the LSI as the carriage drive signal.
  • Page 94 1.2.4 Spindle servo system In the spindle servo system, the following seven modes are available: 1) Kick Used to accelerate the disc rotation in the setting-up mode. 2) Offset a. Used in the setting-up mode until the AGC completes after the kick mode. b.
  • Page 95 Insert DISC Setup Spindle speed : 2X Discriminate DISC DA/ROM CD-DA CD-ROM(MP3,WMA) Playing Playing Spindle speed : 1X Spindle speed : 2X SOURCE OFF / ACC OFF SOURCE ON / ACC ON Setup Setup Spindle speed : 1X Spindle speed : 2X Playing Playing Spindle speed : 1X...
  • Page 96 1.3 AUTOMATIC ADJUSTMENT FUNCTION This system automatically handles the circuit adjustment inside the CD LSI. All adjustments are performed whenever a disc is inserted or the CD mode is selected by pressing the source key. Each adjustment will be explained below. 1.3.1 TE, FE, and RF offset auto-adjustment This adjustment is made to adjust the offsets of the TE, FE, and RF amplifiers in the preamplifier block to their target values on the basis of the REFO when the power is turned on.
  • Page 97 1.3.5 RF level auto-adjustment (RFAGC) This adjustment minimizes the dispersion of the RF level (RFO), which may be caused by disc-related errors, for more stable signal transmission by changing the amp gain between RFI and RFO. <Adjusting procedures> 1) The microcomputer sends the command to the servo LSI to read out the output from the RF level detecting circuit inside the servo LSI.
  • Page 98 1.3.7 Initial values in adjustment For each auto-adjustment, the last adjustment results are basically used as the initial settings of the next adjustment unless the microcomputer is turned off (or the backup is off). When the microcomputer (or the backup) is turned off, the last adjustment results are not used, but the factory settings.
  • Page 99 1.4 POWER SUPPLY AND LOADING BLOCK The VD (8.3 ± 0.5V), the VD2 (5.6 ± 0.5V) and the VDD (5.0 ± 0.25V), which are supplied from the mother PC board, are used for the power supply. In this system, the following four power-supply signals are available: the VD (for the drive system), the V3R3 obtained from the VD2 via the 3.3V regulator (for the control system: 3.3V), the VDD (for the micro- computer: 5V), and the 3VDD obtained from the VDD via the 3.3V regulator (for the microcomputer: 3.3V).
  • Page 100 To control the load and eject operations, the clamp switch located in the mechanism unit and the three detecting switches located in the control unit are used. Depending on the combination of these switches' ON/OFF status, the DSCSNS voltage changes. The microcomputer can detect the status (A to E) by observing the voltage at the A/D port.
  • Page 101 • EJECT 12 cm DSCSNS signal E = 5 V B = 3.18 V A = 2.13 V C = 1.06 V D = 0 V 12EJ DSCSNS CLAMP CLCONT LOEJ MOTOR STOP EJECT STOP 8 cm DSCSNS signal A o r B 12EJ DSCSNS CLAMP...
  • Page 102 2. MECHANISM DESCRIPTIONS - Loading actions 1. When a disc is inserted, SW Arm L and R rotate. Due to the rotation of Arm L, SW1 is switched from ON to OFF and the Load Carriage Motor starts. 2. If the disc is 12cm-disc, when it is carried to the position shown with the dotted line in the drawing, SW 3 switches to ON due to such rotation of Arm.
  • Page 103 - Clamp actions 1. When an 8 or 12cm disc is placed on the center of the spindle, the detection arm starts moving. 2. The movement of the detection arm engages the loading rack with the 2-stage gear. 3. The clamp lever slides to lower the clamp arm. At this time, the roller up arm rotates to separate the roller arm from the disc.
  • Page 104 3. DISASSEMBLY - How to hold the Mechanism Unit 1. Hold the top and bottom frame. 2. Do not squeeze top frame's front portion too tight, because it is fragile. Do not squeeze. - Removing the Upper and Lower Frames 1.
  • Page 105 Bevel Gear Bracket - Removing the CD Core Unit(S10MP3) 1. Apply shorting solder to the Pickup flexible cable. Disconnect the cable. 2. Remove the solder from the four leads, and loosen Solder the screw. 3. Remove the CD core unit(S10MP3). Shorting Caution: When assembling the CD core unit(S10MP3), Solder...
  • Page 106 - Removing the Pickup Unit Washer 1. Set the mechanism to the clamp mode. Pickup Lock Arm 2. Remove the lead wires from the inner holder. Change 3. Remove the two washers, styling holder, change Styling Holder arm, and pickup lock arm. 4.
  • Page 107 - Removing the Clamp Arm Assy 1. Remove the five springs. 2. While lifting the clamp arm assy, slide it in the Spring direction marked with the arrow (2) to remove it. Clamp Arm Assy Spring Spring Spring Spring - Removing the Spindle Motor 1.

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