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Pioneer MEH-P7300R Manual

Multi-cd/dab control high power md player with tuner
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Service
Manual
MULTI-CD/DAB CONTROL HIGH POWER MD PLAYER WITH RDS TUNER
MEH-P7300R
MULTI-CD CONTROL HIGH POWER MD PLAYER WITH FM/AM TUNER
MEH-P7350
- This service manual should be used together with the following manual(s):
Model No.
Order No.
CX-1020
CRT2653
- US and foreign patents licensed from Dolby Laboratories Licensing Corporation.
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST .......................2
4. PCB CONNECTION DIAGRAM ................................42
5. ELECTRICAL PARTS LIST ........................................52
6. ADJUSTMENT..........................................................63
PIONEER CORPORATION
PIONEER ELECTRONICS SERVICE INC.
PIONEER EUROPE NV
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2001
MEH-P7300R/EW
EQ
SOURCE
DISP
Mech. Module Remarks
MD-4LP
MD Mech. Module:Circuit Description, Mech.Description, Disassembly
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
SELECT
SFEQ
1
2
3
4
5
6
E
B
FUNC
AUDIO
ES
7. GENERAL INFORMATION .......................................67
7.1 DIAGNOSIS ........................................................67
7.1.1 TEST MODE ..............................................67
7.1.2 DISASSEMBLY .........................................71
7.1.3
7.2 IC ........................................................................76
7.3 OPERATIONAL FLOW CHART ...........................84
8. OPERATIONS AND SPECIFICATIONS.....................85
ORDER NO.
CRT2660
EW
.......74
K-ZZS. MAR. 2001 Printed in Japan
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  • Page 1: Table Of Contents

    PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER CORPORATION 2001 K-ZZS. MAR. 2001 Printed in Japan...

  • Page 2: Safety Information

    MEH-P7300R,P7350 1. SAFETY INFORMATION 1.1 MEH-P7300R/EW, P7350/ES This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual.

  • Page 3: Exploded Views And Parts List

    MEH-P7300R.P7350 2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKING(KEH-P7300R/EW) 23 23 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.
  • Page 4 MEH-P7300R,P7350 2.2 PACKING(MEH-P7350/ES)
  • Page 5 MEH-P7300R.P7350 - PACKING SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Carton CHG4319 16 Protector CHP2347 2 Cord Assy CDE6438 17 Protector CHP2346 3 Accessory Assy CEA2395 18 Case Assy CXB3520 4 Spring CBH1650...
  • Page 6 MEH-P7300R,P7350 2.3 EXTERIOR(MEH-P7300R/EW)
  • Page 7 MEH-P7300R.P7350 - EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BMZ30P040FZK 46 Holder CNC9258 2 Screw BMZ30P100FMC 47 Panel CNS6350 3 Screw BSZ26P060FMC 48 Pin CNV6486 4 Screw BSZ30P040FMC 49 Holder CNC9259...
  • Page 8 MEH-P7300R,P7350 2.4 EXTERIOR(MEH-P7350/ES)
  • Page 9 MEH-P7300R.P7350 - EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BMZ30P040FZK 46 Holder CNC9258 2 Screw BMZ30P100FMC 47 Panel CNS6350 3 Screw BSZ26P060FMC 48 Pin CNV6486 4 Screw BSZ30P040FMC 49 Holder CNC9259...
  • Page 10 MEH-P7300R,P7350 2.5 MD MECHANISM MODULE...
  • Page 11 MEH-P7300R.P7350 - MD MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 MD Unit(MD-4LP) CWX2505 46 Rack CNV5624 2 Connector(CN401) CKS4055 47 Rack CNV5625 3 Connector(CN101) CKS4056 48 Roller CNV5626 4 ••••• 49 Collar...

  • Page 12: Block Diagram And Schematic Diagram

    MEH-P7300R,P7350 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM(MEH-P7300R/EW) TUNER AMP UNIT FM/AM TUNER UNIT Q153 Q151 Q155 FM/AM 1ST IF 10.7MHz MPXREF 41kHz CN401 AMRF T51 Q51 CF51 CF52 CF53 AMDET AMANT L ch IC 2 FM MPX...
  • Page 13 MEH-P7300R,P7350 HIGH OUT RESET CN351 IC 961 OUT1 PRE OUT L S-80735ANDZI Q351 IC 271 Q155 PA2028A CN352-1 OUT3 TMUTE Q352 OUT5 fm/AM SYSTEM µ-COM Q353 IC 601(1/2) CN352-2 PD5619A ldet Q911 NL2DT Q931 bsens SDBW TUNPCE asens TUNPCK tunpce@...
  • Page 14 MEH-P7300R,P7350 3.2 BLOCK DIAGRAM(MEH-P7350/ES) TUNER AMP UNIT FM/AM TUNER UNIT FM/AM 1ST IF 10.7MHz MPXREF 41kHz CN401 AMRF T51 Q51 CF51 CF52 CF53 AMDET AMANT L ch IC 2 FM MPX R ch ANT1 ADJ COMP MIXER, IF AMP, DET.
  • Page 15 MEH-P7300R,P7350 HIGH OUT RESET CN351 IC 961 OUT1 PRE OUT L S-80735ANDZI Q351 IC 271 PA2028A OUT5 SYSTEM µ-COM Q353 IC 601(1/2) CN352 PD5619A Q911 Q931 bsens TUNPCE asens TUNPCK tunpce@ TUNPDO ASENBO CN901 30 29 81 ELECTRONIC VOLUME/ POWER AMP...
  • Page 16 MEH-P7300R,P7350 3.3 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)(MEH-P7300R/EW) Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. Large size SCH diagram NOTE : Symbol indicates a resistor. Decimal points for resistor No differentiation is made between chip resistors and...
  • Page 17 MEH-P7300R,P7350 MD UNIT TUNER AMP UNIT CN301 MD:+1.6dBs PRE OUT REAR FRONT FM(100%):-16.5dBs FM(100%):+12.1dBs AM(30%):-27.0dBs AM(30%): +3.6dBs IP-BUS: +2.2dBs FM(100%):+4.6dBs IP-BUS:+14.8dBs MD: +1.6dBs AM(30%): -3.9dBs MD:+16.2dBs IP-BUS:+7.3dBs MD:+8.7dBs 600µH > FUSE CEK1136 FM(100%):+30.6dBs AM(30%):+22.1dBs IP-BUS:+33.3dBs MD:+34.7dBs RR– BACK UP FR–...
  • Page 18 MEH-P7300R,P7350...
  • Page 19 MEH-P7300R,P7350 A-a B...
  • Page 20 DEH-P7300R,P6300R...
  • Page 21 MEH-P7300R,P7350...
  • Page 22 MEH-P7300R,P7350 3.4 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)(MEH-P7350/ES) Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. > FM(10 AM(3 R252 BSCK R253 RIMUTE BRXEN R262 PLAY BSCK BSCK VDSEL ANTENNA PANEL UNIT NOTE : Symbol indicates a resistor.
  • Page 23 MEH-P7300R,P7350 MD UNIT CN301 TUNER AMP UNIT MD:+1.6dBs PRE OUT FRONT 100%):-20.5dBs (30%):-31.0dBs FM(100%):+10.1dBs P-BUS: +2.2dBs AM(30%): -0.4dBs FM(100%):+2.6dBs IP-BUS:+14.8dBs MD: +1.6dBs AM(30%): -7.9dBs MD:+16.2dBs IP-BUS:+7.3dBs MD:+8.7dBs 600µH > FUSE CEK1136 FM(100%):+28.6dBs AM(30%):+18.1dBs IP-BUS:+33.3dBs MD:+34.7dBs...
  • Page 24 MEH-P7300R,P7350...
  • Page 25 MEH-P7300R,P7350 A-a B...
  • Page 26 DEH-P7300R,P6300R...
  • Page 27 MEH-P7300R,P7350...
  • Page 28 MEH-P7300R,P7350 3.5 KEYBOARD UNIT(MEH-P7300R/EW) REMOTE CONTROL SENSOR VOLUME S1930 CSD1059 CSG1113 TA/NEWS SFEQ BAND/ESC...
  • Page 29 MEH-P7300R,P7350 KEYBOARD UNIT GRILLE µ-COM OEL CONTROLLER OEL UNIT MXS8016...
  • Page 30 MEH-P7300R,P7350 3.6 KEYBOARD UNIT(MEH-P7350/ES) REMOTE CONTROL SENSOR VOLUME S1930 CSD1059 CSG1112 PAUSE SFEQ...
  • Page 31 MEH-P7300R,P7350 KEYBOARD UNIT GRILLE µ-COM OEL CONTROLLER OEL UNIT MXS8016...
  • Page 32 MEH-P7300R,P7350 3.7 MD MECHANISM MODULE(GUIDE PAGE) · FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE RF AMP & 5ch Pow-Driver ⁄ ‹ fl ¤ fi ›...
  • Page 33 MEH-P7300R,P7350 MD UNIT ° 3V Reg DIGITAL SERVO ATRAC,ATRAC3 DECODER ‡ 3-5V LEVEL SHIFT CK SELECT MD SYSTEM CONTROLLER...
  • Page 34 MEH-P7300R,P7350...
  • Page 35 MEH-P7300R,P7350...
  • Page 36 MEH-P7300R,P7350...
  • Page 37 MEH-P7300R,P7350...
  • Page 38 MEH-P7300R,P7350 Notes: 1. Circled figures represent the measuring points in the circuit diagram. - Waveforms 2. Reference voltage VC: 1.65V < · VC > 3. Premastered MD, Make measurements using the MMD110. Nonetheless, waveforms indicated as “Recordable MD” should be measured using the MMD212.
  • Page 39 MEH-P7300R,P7350 *1 Use the AGND pin for grounding. < ‡ GND > *2 Use the GND pin for grounding. < ° GND > Due to dispersion in electrical and mechanical characteristics of the MD MECH module, observed waveforms for TEY, TIN, FEY and FIN signals might be a little different from those shown below.
  • Page 40 MEH-P7300R,P7350 *1 Cautions on measuring While measuring, keep the leads from the measuring terminals (ADFM, ADFG and GND on the MD CORE unit) , which is connected to the probe of an oscilloscope, apart from each other. *2 Use the GND pin for grounding. < ° GND >...
  • Page 41 MEH-P7300R,P7350 CN401 SW1 PCB 1 2 3 4 5 6 7 8 9 10 11 12 13 S404 CSN1042 DISC SW S401 CSN1055 CLMP SW S405 CSN1052 LOAD SW S402 CSN1052 HOME SW SW2 PCB S403 CSN1053 EJCT SW LOADING...

  • Page 42: Pcb Connection Diagram

    MEH-P7300R,P7350 4. PCB CONNECTION DIAGRAM TUNER AMP UNIT 4.1 TUNER AMP UNIT NOTE FOR PCB DIAGRAMS CORD ASSY 1. The parts mounted on this PCB CORD ASSY CORD ASSY include all necessary parts for several destination. For further information for...
  • Page 43 MEH-P7300R,P7350 SIDE A IC, Q PRE OUT IP BUS ANTENNA CN301 FRONT CN1950...
  • Page 44 MEH-P7300R,P7350 TUNER AMP UNIT IC, Q...
  • Page 45 MEH-P7300R,P7350 SIDE B...
  • Page 46 MEH-P7300R,P7350 4.2 PANEL UNIT SIDE B SIDE A CN1901 CN801...
  • Page 47 MEH-P7300R,P7350 4.3 KEYBOARD UNIT(MEH-P7300R/EW) SIDE B SIDE A CN1951 OEL UNIT OEL UNIT...
  • Page 48 MEH-P7300R,P7350 4.4 KEYBOARD UNIT(MEH-P7350/ES) SIDE B SIDE A CN1951 OEL UNIT OEL UNIT...
  • Page 49 MEH-P7300R,P7350 SW1 PCB 4.5 MD MECHANISM MODULE S405 LOAD SW S404 DISC SW2 PCB LOADING S403 MOTOR EJCT S402 SPINDLE HOME MOTOR S401 CLMP CN401...
  • Page 50 MEH-P7300R,P7350 SIDE A MD UNIT CN651 IC, Q PU UNIT...
  • Page 51 MEH-P7300R,P7350 SIDE B MD UNIT IC, Q...

  • Page 52: Electrical Parts List

    CKS.., CCS.., CSZS..=====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Unit Number : CWM7463(MEH-P7300R) Diode Network DA204U Diode DAN202U Unit Name : Tuner Amp Unit Diode DAP202U Diode DAN202U...
  • Page 53 DEH-M6156ZH,M6356ZH =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S562J RS1/16S471J RS1/16S332J RS1/16S471J RS1/16S150J RS1/16S471J RS1/16S181J RS1/16S473J RS1/16S181J RS1/16S473J RS1/16S223J RS1/16S681J RS1/16S223J RS1/16S681J RS1/16S102J RS1/16S681J RS1/16S102J RS1/16S102J RS1/16S224J RS1/16S473J RS1/16S224J RS1/16S681J...
  • Page 54 MEH-P7300R,P7350 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S682J CAPACITORS RS1/16S682J RS1/16S104J CKSRYB104K16 RS1/16S104J CKSRYB104K16 RS1/16S104J CKSRYB104K16 CKSRYB104K16 RS1/16S104J CKSRYB224K16 RS1/16S102J RS1/16S102J CKSRYB103K50 RS1/16S104J CEJQ1R0M50 RS1/16S222J CKSRYB104K16...
  • Page 55 CEJQ100M16 CKSRYB222K50 CEJQ100M16 CKSRYB222K50 CEJQ2R2M50 CKSRYB222K50 CKSRYB473K25 CKSRYB222K50 CKSRYB102K50 CKSRYB222K50 CEJQ101M10 CKSRYB222K50 1000µF/10V CCH1184 CKSRYB182K50 Unit Number : CWM7466(MEH-P7300R) CKSRYB473K25 Unit Name : Keyboard Unit CEJQ101M6R3 CKSRYB103K50 MISCELLANEOUS CEJQ220M10 CKSQYB103K50 IC 1901 PD5627A IC 1902 PD8074A CKSRYB223K25 IC 1903 TSOP1840SB1...
  • Page 56 MEH-P7300R,P7350 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- 1924 Push Switch CSG1113 1908 CKSRYB473K16 1930 Encoder(VOLUME) CSD1059 1913 CSZSR100M16 VR 1902 Semi-fixed 20kΩ(B) CCP1231 1922 CKSRYB104K16 OEL Unit...
  • Page 57 MEH-P7300R,P7350 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Diode DAN202U RS1/16S822J Diode DAP202U RS1/16S0R0J Diode HZS11L(A1) RS1/16S0R0J Diode HZS9L(B2) RS1/16S272J Diode SB05-03C RS1/16S272J Diode MPG06G-6415G50 RS1/16S162J Diode...
  • Page 58 MEH-P7300R,P7350 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S103J RS1/16S472J RS1/16S152J RS1/16S472J RS1/16S223J RS1/16S102J RS1/16S0R0J RS1/16S102J RS1/16S0R0J RS1/16S822J RS1/16S473J RS1/16S473J RS1/16S0R0J RS1/16S104J RS1/16S104J RS1/16S473J RS1/16S102J RD1/4PU102J RS1/16S102J...
  • Page 59 MEH-P7300R,P7350 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CFTNA224J50 Unit Number : CWM7467(MEH-P7350) CFTNA224J50 Unit Name : Keyboard Unit CEJQ100M35 CEJQ100M35 MISCELLANEOUS CEJQ100M35 IC 1901 PD5627A CEJQ100M35...
  • Page 60 MEH-P7300R,P7350 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- 1915 RAB4C101J Unit Number : CWM7627 1918 RAB4C101J Unit Name : Panel Unit 1921 RAB4C102J 1922 RS1/16S121J MISCELLANEOUS 1923...
  • Page 61 MEH-P7300R,P7350 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RN1/16SE1002D CKSRYB473K25 RN1/16SE1002D CKSRYB223K25 RS1/16S105J CKSRYB472K50 RS1/16S102J CKSRYB104K16 RS1/16S332J CKSRYB102K50 RS1/16S123J CKSRYB473K25 RS1/16S221J CKSRYB102K50 RS1/16S123J CKSRYB105K10 RS1/16S123J CKSRYB472K50 RS1/16S123J...
  • Page 62 MEH-P7300R,P7350 =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- PCB Unit Consists SW1 PCB SW2 PCB Unit Number : Unit Name : PCB Unit Spring Switch(CLMP SW) CSN1055 Spring Switch(HOME SW) CSN1052 Spring Switch(EJCT SW) CSN1053 Spring Switch(DISC SW)

  • Page 63: Adjustment

    MEH-P7300R,P7350 6. ADJUSTMENT 6.1 OEL UNIT ADJUSTMENT - Adjustment point KEYBOARD UNIT (SIDE B) 1. Use VR1902 to adjust the resistance between TP1 and TP2 to 5.85kΩ.
  • Page 64 MEH-P7300R,P7350 6.2 ADJUSTING THE MD SECTION 1) Precautions Since the single voltage (3.3V) system is being employed for the regulator of this equipment, the reference potential for the servo signals becomes Vc (1.65V, approximately). In this manual, the Vc reference potential will be indicated as **Vc (e.g. 1.5Vc) and the reference GND will be indicat- ed as **V.
  • Page 65 MEH-P7300,P7350 - Grating adjustment 1) Regarding the TEST Disc When performing grating adjustment and grating confirmations, use the high reflection Disc (MMD-110). When confirming the operation state and automatic adjustment state, us the high reflection Disc (MMD-110) and low reflection Disc (MMD-212), respectively. 2) When the pickup unit or the spindle motor has been replaced, be sure to perform the grading adjust- ment and grating confirmation.
  • Page 66 MEH-P7300R,P7350 Ech → Xch 50mV/div, AC Grating waveform Fch → Ych 50mV/div, AC 0° 30° 45° 60° 75° 90°...

  • Page 67: General Information

    MEH-P7300,P7350 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 TEST MODE (1) When entering into the TEST MODE 1 Pressing and holding the "4" key and "6" key simultaneously, turn ON the "ACC" and "B.UP" (Reset Start) at the same time. 2 Select the MD using the [SOURCE] key. 3 Insert the Disc or press the POWER ON [BAND] key.
  • Page 68 MEH-P7300R,P7350 err-n-xx The larger the "n" is, the newer the error is. err-n+1-xx err-n+1-xx xx:err code, NG code appear. (The NG code is of the internal mode which is not indicated under the actual product mode.) ** Once the "Test Normal" is executed, the adjusted value and the play address will be stored into the micro- computer as the LAST values.
  • Page 69 MEH-P7300,P7350 - Flow Chart(Mechanism Section) ACC,Back-up ON SOURCE MD select BAND POWER ON Repetition of LOAD and EJECT, Display of number of times. The first 1bit is for load. TEST MECHA Type of EJECT, L : LOAD, E : EJECT BAND TRK + TRK –...
  • Page 70 MEH-P7300R,P7350 - Flow Chart(Servo Section) Reset BAND MD select POWER ON TEST MD The displays of the the aboves two and BAND TRK + TRK – three digits are disk modes LDON OFF SET DISP1 HOME DISC identified with MODE...

  • Page 71: Disassembly

    MEH-P7300R,P7350 7.1.2 DISASSEMBLY Removing the Case (not shown) 1. Remove the Case. MD Mechanism Module Removing the MD Mechanism Module (Fig.1) Remove the four screws. Disconnect the connector and then remove the MD Mechanism Module. Removing the Grille Panel Assy (Fig.1) Remove the two screws and then remove the Grille Panel Assy.
  • Page 72 MEH-P7300R,P7350 - Removing the OEL Unit 1. Apply hot air to the cable pins for the anode terminal using a Anode terminal blower used for removing a flat-packaged IC or something like that. When all the pins are peeling off from the PCB, pinch the cable with a pair of tweezers and remove it slowly from the PCB.
  • Page 73 MEH-P7300,P7350 - Removing the PU Unit 1. Provide short solder in section A, then remove the connector 2. Remove the two screws, then erect the board in the direction indicated by the white arrow head. 3. Remove the two screws and two springs. 4.

  • Page 74: Connector Function Description

    MEH-P7300R,P7350 7.1.3 CONNECTOR FUNCTION DESCRIPTION - MEH-P7300R/EW FRONT OUTPUT REAR OUTPUT FUSE 10A PRE OUTPUT 4 6 8 12 14 11 13 3 5 7 1. BUS+ 1. RR+ 2. GND 2. FR+ ANTENNA 3. GND 3. RR- 4. NC 4.
  • Page 75 MEH-P7300R,P7350 - MEH-P7350/ES FUSE 10A PRE OUTPUT 4 6 8 12 14 3 5 7 11 13 1. RR+ 1. BUS+ ANTENNA 2. FR+ 2. GND 3. RR- 3. GND 4. FR- 4. NC 5. RL+ 5. BUS- 6. FL+ 6.
  • Page 76 MEH-P7300R,P7350 7.2 IC - Pin Functions (PD5619A) Pin No. Pin Name Function and Operation TUNPDO TUNER:Data output(PLL) TUNPCK TUNER:Clock output(PLL) EMUTE EVOL:Mute output EVOL:Strobe output EVOL:Data output Not used EVOL:Clock output BYTE CNVSS TELIN TEL:Cellular mute input HTELPW TEL:Microphone control output...
  • Page 77 MEH-P7300R,P7350 Pin No. Pin Name Function and Operation Power supply input(Vcc) Not used(OPEN) Power supply input(Vss) 65-69 Not used(OPEN) htelm TEL:Mute output for handsfree tunpce@ TUNER:Chip enable output(EEPROM) TUNPCE TUNER:Chip enable output(PLL) bsens Backup sense asens ACC sense currq RDS:Voltage FIX output...
  • Page 78 MEH-P7300R,P7350 - Pin Functions (PD5627A) Pin No. Pin Name Function and Operation Not used OPEN Remote control reception BYTE GND connection CNVSS GND connection 8, 9 Not used OPEN RESET Pull up XOUT Crystal oscillating element connection pin VSS connection...
  • Page 79 MEH-P7300R,P7350 PML009A Isolator SEL_out_L SEL_out_R Treble Middle Bass Source Gain adjuster Primary PV_in_L Anti PV_in_R Loudness Volume Alias Volume Filter Tone_out_FL Tone_out_FR Treble_2 Anti Radiation SV_in_FL Filter SV_in_FR Anti Radiation Filter Bass_2 Tone_out_RL Tone_out_RR Zero Cross SV_in_RL detector SV_in_RR Tone_out_PreL...
  • Page 80 MEH-P7300R,P7350 *PD8074A A0-A19 :Address input D0-D15 :Data output byte :8/16 bit mode select :Chip enable input :Output enable input :Power supply :GND byte D15(A)
  • Page 81 MEH-P7300R,P7350 CXD2667R D1/GFS Generator DVSS Analog AUX2 Auto ADIP DVDD Sequencer Decoder DCHG DRAM Spindle XRAS Servo DDIN Converter DDOUT XCAS ASYO ASYI VSIO1 AVDI Shock Resistant COMP Memory Controller BIAS AVSI EFM/ACIRC Decoder FILI Subcode Processor FILO CLTV VDC3...
  • Page 82 MEH-P7300R,P7350 Pin Functions(PD5655A) Pin No. Pin Name Format Function and Operation Open BYTE CNVSS Open reset Resetting input XOUT Main clock oscillation pin VSS1 Main clock oscillation pin VCC1 Not used SQSY DISC sub-code Q sink/ADIP sink brst P-BUS resetting input...
  • Page 83 MEH-P7300R,P7350 - FM/AM Tuner Unit 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 ANT ADJ COMP MIXER, IF AMP, DET. LDET FMANT RFGND...

  • Page 84: Operational Flow Chart

    MEH-P7300R,P7350 7.3 OPERATIONAL FLOW CHART Power ON VCC=5V 16pin bsens 73pin bsens=L asens 74pin asens=L dsens 41pin dsens=L ASENBO←H 82pin csens < < - CSENS 2V , 3V CSENS 93pin Source returns to the original one(before you open). 2V

  • Page 85: Operations And Specifications

    ENTERTAINMENT button DISPLAY button TEXT button SOURCE button TA button Steering Remote Controller(MEH-P7300R/EW) A steering remote controller that enables remote operation of the head unit is supplied. Operation is the same as when using buttons on the head unit. ATT button...
  • Page 86 MEH-P7300R,P7350 Head Unit(MEH-P7350/ES) VOLUME OPEN button 5/∞/2/3 buttons EQ button SFEQ button SELECT SFEQ AUDIO button SOURCE DISP FUNC AUDIO FUNCTION button Buttons 1–6 BAND button ENTERTAINMENT button DISPLAY button CLOCK button SOURCE button PAUSE button Remote Controller(MEH-P7350/ES) A remote controller that enables remote operation of the head unit is supplied.
  • Page 87 MEH-P7300R,P7350...
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  • Page 89 MEH-P7300R,P7350...
  • Page 90 MEH-P7300R,P7350...

  • Page 91: Specifications

    MEH-P7300R,P7350 8.2 SPECIFICATIONS - MEH-P7300R/EW General MD player Power source ..14.4 V DC (10.8 – 15.1 V allowable) System ........ Mini disc digital audio system Grounding system ........Negative type Usable discs ............Mini disc Backup current .......... Less than 5 mA Signal format ....
  • Page 92 MEH-P7300R,P7350 - MEH-P7350/ES General MD player Power source ..14.4 V DC (10.8 – 15.1 V allowable) System ........ Mini disc digital audio system Grounding system ........Negative type Usable discs ............Mini disc Max. current consumption ........10.0 A Signal format ....

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