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Pioneer KEH-P7020R X1B/EW Service Manual
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Pioneer KEH-P7020R X1B/EW Service Manual

Pioneer KEH-P7020R X1B/EW Service Manual

Multi-cd/dab control high power cassette player with rds tuner
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Service
Manual
MULTI-CD/DAB CONTROL HIGH POWER CASSETTE PLAYER WITH RDS TUNER
KEH-P7020R
- 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.
KEH-P7020R/XN/EW
CX-1011
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) 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 2002
Order No. Mech. Module Remarks
CRT2817
CRT2406
3L
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
Cassette Mech. Module:Mech.Description, Disassembly, Adjustment
ORDER NO.
CRT2844
X1B/EW
K-ZZA. JAN. 2002 Printed in Japan

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Summary of Contents for Pioneer KEH-P7020R X1B/EW

  • Page 1 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 2002 K-ZZA. JAN. 2002 Printed in Japan...
  • Page 2 KEH-P7020R EXPLODED VIEWS AND PARTS LIST PACKING(Page 4) - PACKING SECTION PARTS LIST * : Non spare part Part No. Mark No. Description KEH-P7020R/XN/EW KEH-P7020R/X1B/EW 1 Cord Assy CDE6435 UDE6435 2 Accessory Assy CEA3062 UEA3062 8 Polyethylene Bag E36-615 CEG-127 9 Polyethylene Bag CEG-162 UEG-012...

  • Page 3: Table Of Contents

    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 2001 K-ZZA. DEC.2001 Printed in Japan 2000.printed in Japan...
  • Page 4 [ 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 5: Safety Information

    1. SAFETY INFORMATION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.

  • Page 6: Exploded Views And Parts List

    2. EXPLODED VIEWS AND PARTS LIST OTES : • Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List. • Screw adjacent to mark on the product are used for disassembly. •...
  • Page 7 PACKING(KEH-P7020R/XN/EW) PARTS LIST Mark No. Description Part No. 1 Cord Assy CDE6435 2 Accessory Assy CEA3062 3 Screw BPZ20P060FZK 4 Screw CBA1002 5 Handle CNC5395 6 Earth Plate CNC9450 7 Bush CNV3930 8 Polyethylene Bag E36-615 9 Polyethylene Bag CEG-162 10 Case Assy CXB3520 11 Carton...
  • Page 8 2.2 PACKING(KEH-P7025/XN/ES) KEH-P7020R...
  • Page 9 PACKING(KEH-P7025/XN/ES) PARTS LIST Mark No. Description Part No. 1 Cord Assy CDE6438 2 Spring CBH1650 3 Remote Control Unit CXB8744 4 Screw CBA1002 5 Polyethylene Bag CEG-127 6 Screw CRZ50P090FMC 7 Screw TRZ50P080FMC 8 Polyethylene Bag CEG-158 9 Handle CNC5395 10 Bush CNV3930 11 Polyethylene Bag...
  • Page 10 2.3 EXTERIOR(KEH-P7020R/XN/EW) KEH-P7020R...
  • Page 11 EXTERIOR(KEH-P7020R/XN/EW) PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 51 Arm CNV6508 1 Screw BMZ30P040FZK 52 Panel Unit CWM7987 2 Screw BMZ30P100FMC 53 Socket(CN1850) CKS3550 3 Screw BSZ26P060FMC 54 Connector(CN1851) CKS4462 4 Screw BSZ30P040FMC 55 Damper Unit CXB5070 5 Cord Assy CDE6435...
  • Page 12 2.4 EXTERIOR(KEH-P7025/XN/ES) KEH-P7020R...
  • Page 13 EXTERIOR(KEH-P7025/XN/ES) PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 52 Panel Unit CWM7987 1 Screw BMZ30P040FZK 53 Socket(CN1850) CKS3550 2 Screw BMZ30P100FMC 54 Connector(CN1851) CKS4462 3 Screw BSZ26P060FMC 55 Damper Unit CXB5070 4 Screw BSZ30P040FMC 56 Holder Unit CXB6356 5 Cord Assy CDE6438...
  • Page 14 2.5 CASSETTE MECHANISM MODULE For grease application, refer to the service manual for CX-1011 (CRT2406). KEH-P7020R...
  • Page 15 CASSETTE MECHANISM MODULE PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 31 Lever ENV1551 1 Screw BSZ20P040FMC 32 Flywheel ENV1554 2 Washer CBF1037 33 Gathering PCB ENX1068 3 Washer CBG1003 34 Switch(S1,S2,S3) ESG1007 4 Screw EBA1028 35 Deck Unit EWM1033 5 Screw...

  • Page 16: Block Diagram And Schematic Diagram

    3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM(KEH-P7020R/XN/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 Q501 R ch DECODER ANT1 ADJ...
  • Page 17 RESET CN351 IC 961 S-80735ANDZI Q351 CN352-1 TMUTE Q352 FM/AM Q353 SYSTEM CONTROLLER IC 601(1/2) PD5698B CN352-2 VDD REGULATOR LDET Q911 NL2DT CN901 BACKUP SENSE FUSE BSENS BACK UP SDBW Q931 TUNPCE ASENS TUNPCK ACC SENSE Q932 TUNPCE2 ILL SENSE TUNPDO ISENS ASENBO...
  • Page 18 3.2 BLOCK DIAGRAM(KEH-P7025/XN/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. LDET FMANT RFGND FMRF...
  • Page 19 RESET CN351 IC 961 S-80735ANDZI Q351 CN352-1 Q352 Q353 SYSTEM CONTROLLER IC 601(1/2) PD5698B CN352-2 VDD REGULATOR Q911 CN901 BACKUP SENSE FUSE BSENS BACK UP Q931 TUNPCE ASENS TUNPCK ACC SENSE Q932 TUNPCE2 ILL SENSE TUNPDO ISENS ASENBO Q951 TELMUTE TELIN TELEPHONE MUTE 30 29 81...
  • Page 20 3.3 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)(KEH-P7020R/XN/EW) Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST". CN251 IP-BUS TAPE:-11.2dBs IP-BUS:+2.2dBs Large size SCH diagram Guide page ELEC Detailed page > HANDSFREE IP-BUS DRIVER CN451...
  • Page 21 TUNER AMP UNIT 10K(B) LEVEL INDICATOR ELECTRONIC VOLUME, SOURCE SELECTOR MUTE FM:+14.1dBs AM: +0.6dBs IP-BUS:+14.9dBs TAPE:+1.36dBs REAR R CH MUTE REAR L CH PML009A L CH FM: +6.6dBs R CH AM: -1.9dBs IP-BUS: +9.3dBs TAPE:-4.14dBs FRONT L CH MUTE FRONT FM: -16.5dBs R CH AM: -27.0dBs...
  • Page 22 KEH-P7020R...
  • Page 23 KEH-P7020R...
  • Page 24 KEH-P7020R...
  • Page 25 KEH-P7020R...
  • Page 26 3.4 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)(KEH-P7025/XN/ES) CN251 IP-BUS TAPE:-11.2dBs IP-BUS:+2.2dBs IP-BUS DRIVER NOTE : Symbol indicates a resistor. Decimal points for resistor No differentiation is made between chip resistors and and capacitor fixed values FM: -20.5dBs discrete resistors. are expressed as : AM: -31.0dBs Symbol indicates a capacitor.
  • Page 27 TUNER AMP UNIT 10K(B) LEVEL INDICATOR ELECTRONIC VOLUME, SOURCE SELECTOR MUTE FM:+10.1dBs AM: -0.4dBs IP-BUS:+14.9dBs TAPE:+1.36dBs REAR R CH MUTE REAR L CH PML009A L CH FM: +2.6dBs R CH AM: -7.9dBs IP-BUS: +7.3dBs TAPE:-6.14dBs FRONT L CH MUTE FRONT FM: -20.5dBs R CH AM: -31.0dBs...
  • Page 28 KEH-P7020R...
  • Page 29 KEH-P7020R...
  • Page 30 KEH-P7020R...
  • Page 31 KEH-P7020R...
  • Page 32 3.5 KEYBOARD UNIT(KEH-P7020R/XN/EW) CN1851 3.3V REGULATOR REMOTE CONTROL SENSOR VOLUME DISP/SCRL TEXT SFEQ ← BAND/ESC KEH-P7020R...
  • Page 33 KEYBOARD UNIT FONT ROM KEY CONTROL AND OEL CONTROL OEL UNIT MXS8017 KEH-P7020R...
  • Page 34 3.6 KEYBOARD UNIT(KEH-P7025/XN/ES) CN1851 3.3V REGULATOR REMOTE CONTROL SENSOR VOLUME DISP/SCRL PAUSE SFEQ ← BAND/ESC KEH-P7020R...
  • Page 35 KEYBOARD UNIT FONT ROM KEY CONTROL AND OEL CONTROL PD8088A OEL UNIT MXS8017 KEH-P7020R...
  • Page 36 3.7 CASSETTE MECHANISM MODULE DECK UNIT CN252 C256 Rev-L Rev-R MUTE NF1(R) Vref1 120/70 IC251 ser/REP RIN(L) Fwd-R HA12228F RIN(R) MSOUT C405 R033 Fwd-L R404 270K MSDET FIN(R) C404 Vref2 Dolby-B R403 MAOUT FIN(L) NFI(L) MSGV(R) HEAD ASSY EXA1589 TEST TAPE NCT-150 C255 (400Hz, 200nWb/m)
  • Page 37 M1 MOTOR UNIT (MAIN MOTOR) EXA1490 CN255 CN256 REEL SENSE CN253 EGN1 EGN1004 R375 R373 70µs ESG1007 MECHANISM MODE ESG1007 DRIVER load S1 LOAD ESG1007 REEL SENSE C405 R033 270K CN254 MOTOR UNIT (SUB MOTOR) VCC2 EXA1580 R374 C356 SWITCHES: REEL SENSE PCB C355 S1:LOAD SWITCH..EJECT-PLAY...

  • Page 38: Pcb Connection Diagram

    4. PCB CONNECTION DIAGRAM 4.1 TUNER AMP UNIT TUNER AMP UNIT CORD ASSY CORD ASSY CORD ASSY (OUTPUT,POWER (PREOUT) (TEL)(KEH-P7 SUPPLY) NOTE FOR PCB DIAGRAMS 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 39 CORD ASSY SIDE A (TEL)(KEH-P7020R/XN/EW) IC,Q PRE OUT RL RR 8 10 12 14 18 20 22 24 IP-BUS 9 11 13 17 19 21 23 25 ANTENNA JACK 12 14 11 13 CN251 FRONT CN1850 KEH-P7020R...
  • Page 40 TUNER AMP UNIT IC,Q KEH-P7020R...
  • Page 41 SIDE B KEH-P7020R...
  • Page 42 4.2 PANEL UNIT SIDE A SIDE B PANEL UNIT PANEL UNIT CN1901 CN801 EJECT KEH-P7020R...
  • Page 43 4.3 KEYBOARD UNIT SIDE A SIDE B KEYBOARD UNIT KEYBOARD UNIT ← CN1851 OEL UNIT OEL UNIT KEH-P7020R...
  • Page 44 4.4 CASSETTE MECHANISM MODULE DECK UNIT CN251 SIDE A CN251 C271 DECK UNIT SIDE B HEAD ASSY IC,Q VR302 CN254 CN255 CN253 IC351 CN252 IC251 Q351 Q352 VR301 CN256 KEH-P7020R...
  • Page 45 REEL SENSE PCB LOAD 70µs MODE CN256 EGN1 REEL SENSE CN253 KEH-P7020R...

  • Page 46: Electrical Parts List

    5. ELECTRICAL PARTS LIST NOTE: Parts whose parts numbers are omitted are subject to being not supplied. • The part numbers shown below indicate chip components. • Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS..) CKS.., CCS.., CSZS..Circuit Symbol and No. Part Name Part No.
  • Page 47 Circuit Symbol and No. Part Name Part No. Circuit Symbol and No. Part Name Part No. Inductor CTF1489 RS1/16S473J Choke Coil 600µH CTH1221 RS1/16S473J Ferri-Inductor LAU2R2K RS1/16S473J Crystal Resonator 3.648MHzCSS1447 RAB4C102J Radiator 10.00MHz CSS1475 RS1/16S0R0J Switch(DSENS) CSN1039 RS1/16S102J VR 751 Semi-fixed 10kΩ(B) CCP1229 RS1/16S0R0J...
  • Page 48 Circuit Symbol and No. Part Name Part No. Circuit Symbol and No. Part Name Part No. RS1/16S102J RS1/16S152J RS1/16S225J RS1/10S1R0J RS1/16S681J RD1/4PU221J RS1/16S473J RS1/16S103J RS1/16S0R0J RD1/4PU222J RS1/16S104J RS1/16S122J RS1/16S102J RS1/16S472J RS1/16S102J RS1/16S473J RS1/16S102J RS1/16S103J RS1/16S102J RS1/16S473J RS1/16S222J RS1/16S104J RS1/16S222J RS1/16S103J RS1/16S104J RS1/16S473J RS1/16S473J...
  • Page 49 Circuit Symbol and No. Part Name Part No. Circuit Symbol and No. Part Name Part No. CEJQ1R0M50 CEJQ220M10 CEJQNP4R7M16 CKSRYB474K10 CEJQNP4R7M16 CKSRYB474K10 CEJQNP4R7M16 CKSRYB103K50 CEJQNP4R7M16 CEJQ470M10 CEJQNP4R7M16 CKSRYB104K16 CEJQNP4R7M16 CKSRYB103K25 CEJQNP4R7M16 CKSRYB473K25 CEJQNP4R7M16 CKSYB105K25 CEJQ100M16 CEJQ470M16 CEJQ220M10 4.7µF CCG1111 CEHAR330M10 CEJQ100M25 4700µF/16V CCH1367...
  • Page 50 Circuit Symbol and No. Part Name Part No. Circuit Symbol and No. Part Name Part No. Transistor 2SD1760F5 RESISTORS Transistor IMD2A Transistor 2SD1760F5 RS1/16S101J Transistor IMD2A RS1/16S470J Transistor 2SD2396 RS1/16S101J RS1/16S222J Transistor DTC114EK RS1/16S103J Transistor 2SB1238 Transistor IMX1 RS1/16S562J Transistor 2SC2412K RS1/16S332J Transistor...
  • Page 51 Circuit Symbol and No. Part Name Part No. Circuit Symbol and No. Part Name Part No. RS1/16S821J RS1/16S473J RS1/16S821J RS1/16S102J RS1/16S223J RS1/16S222J RS1/16S223J RS1/16S222J RS1/16S223J RS1/16S222J RS1/16S223J RS1/16S222J RS1/16S223J RS1/16S222J RS1/16S223J RS1/16S473J RS1/16S0R0J RS1/16S104J RS1/16S0R0J RD1/4PU391J RS1/16S0R0J RS1/16S222J RS1/16S473J RS1/16S222J RS1/16S473J RS1/16S331J RS1/16S681J...
  • Page 52 Circuit Symbol and No. Part Name Part No. Circuit Symbol and No. Part Name Part No. CKSRYB103K50 CEJQ100M16 CKSRYB183K25 CEJQ100M16 CKSRYB183K25 CEJQ220M10 CEJQ470M10 CKSRYB474K10 CKSRYB104K16 CKSRYB474K10 CEJQ100M16 CKSRYB103K50 CCSRCH100D50 CEJQ470M10 CCSRCH100D50 CKSRYB104K16 CCSRCH100D50 CKSRYB103K25 CCSRCH100D50 CKSRYB473K25 CEJQ1R0M50 CKSYB105K25 CEJQ1R0M50 CEJQ470M16 CEJQR22M50 4.7µF CCG1111...
  • Page 53 Circuit Symbol and No. Part Name Part No. Circuit Symbol and No. Part Name Part No. 1984 CL170UBX 1925 RAB4C101J 1993 CL170PGCD 1926 RS1/16S101J 1996 CL170PGCD 1931 RS1/16S0R0J 1901 Inductor CTF1530 1941 RS1/16S333J 1902 Inductor CTF1530 1942 RS1/16S683J 1922 Inductor-Array CTF1421 1943 RS1/16S392J...
  • Page 54 Circuit Symbol and No. Part Name Part No. Circuit Symbol and No. Part Name Part No. RESISTORS 1901 RS1/16S222J 1902 RS1/16S222J 1903 RS1/16S473J Unit Number:CWM8237 (KEH-P7025/XN/ES) 1904 RS1/16S103J 1905 RS1/16S682J Unit Name:Keyboard Unit 1906 RS1/16S121J 1907 RS1/16S2R2J MISCELLANEOUS 1908 RS1/16S222J 1909 RS1/16S154J IC 1901...
  • Page 55 Circuit Symbol and No. Part Name Part No. Circuit Symbol and No. Part Name Part No. 1910 CSZSR4R7M10 CAPACITORS 1911 CKSRYB103K25 1912 CSZSR4R7M10 CKSRYB391K50 1913 CKSRYB103K50 CKSRYB391K50 1914 CSZSR4R7M10 CKSRYB391K50 CKSRYB391K50 1941 CKSRYB104K25 CKSRYB103K50 1942 CKSRYB104K16 1943 CKSRYB104K25 CKSRYB103K50 1944 CKSRYB104K25 1µF/50V ECH0002...

  • Page 56: Adjustment

    6. ADJUSTMENT 6.1 OEL UNIT ADJUSTMENT Adjustment point KEYBOARD UNIT (SIDE B) CN1901 IC1901 VR1941 Digital Multi-Meter IC1902 <When the OEL Unit has been replaced> 1. Use VR1941 to adjust the resistance between TP1 and TP2 to 6.60kΩ. KEH-P7020R...
  • Page 57 6.2 DOLBY B NR ADJUSTMENT - Connection Diagram TUNER AMP UNIT Extention Cord GGD1121 CN251 DECK UNIT VR302 VR301 Pin2 Pin3 CN251 L-CH R-CH Meter(2) DOLBY B NR ADJUSTMENT Test Tape Adjustment Point Adjustment Method (Switch Position) NCT-150 VR301(Lch),VR302(Rch) mV Meter(2) : –8.24dBm±1dB (400Hz,200nwb/m) (DOLBY NR Switch : OFF) KEH-P7020R...

  • Page 58: General Information

    7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 DISASSEMBLY Removing the Case (not shown) 1. Remove the Case. Cassette Mechanism Module Removing the Grille Panel Assy (Fig.1) Remove the two screws and then remove the Grille Panel Assy. Removing the Cassette Mechanism Module (Fig.1) Remove the four screws and then remove the Cassette Mechanism Module.
  • Page 59 - Removing the OEL Unit 1. Apply hot air to the cable pins for the anode terminal using blower used for removing a flat-packaged IC or somethin like that. When all the pins are peeling off from the PCB pinch the cable with a pair of tweezers and remove it slowl from the PCB.

  • Page 60: Connector Function Description

    7.1.2 CONNECTOR FUNCTION DESCRIPTION KEH-P7020R/XN/EW SUB WOOFER NON-FADING OUTPUT FRONT OUTPUT 8 9 10 11 1 2 3 4 1. BUS+ 7. BL+ 1. GND 9. RL- ANTENNA 2. GND 8. ASENB 2. B.UP 10. FL- 3. GND 9. BR+ 3.
  • Page 61 KEH-P7025/XN/ES SUB WOOFER NON-FADING OUTPUT FRONT OUTPUT 8 9 10 11 1 2 3 4 1. BUS+ 7. BL+ 1. GND 9. RL- ANTENNA 2. GND 8. ASENB 2. B.UP 10. FL- 3. GND 9. BR+ 3. ACC 11. RL+ 4.
  • Page 62 7.2 IC - Pin Functions (PD5698B) Pin No. Pin Name Function and Operation TUNPDO TUNER:Data output(PLL) TUNPCK TUNER:Clock output(PLL) EMUTE EVOL:Mute output (Not used) EVOL:Strobe output EVOL:Data output Not used EVOL:Clock output BYTE CNVSS TELIN TEL:Telephone mute input HTELPW TEL:Microphone control output RESET Reset input(RESET) XOUT...
  • Page 63 Pin No. Pin Name Function and Operation CASSETTE:Position sense input Not used CASSETTE:Tape end sense input Power supply input(Vcc) CASSETTE:Sub motor 2 control output Power supply input(Vss) CASSETTE:Sub motor 1 control output CASSETTE:Capstan motor control output Not used STBY CASSETTE:Motor driver IC control output Not used HTELM TEL:Mute output for handsfree (Not used)
  • Page 64 PAL007A sw_vcc amp_vcc sw_vcc stby 16 17 24 25 10 11 12 13 14 15 18 19 20 21 22 23 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...
  • Page 65 - Pin Functions (PD5706A) Pin No. Pin Name Function and Operation Not used OPEN Remote control reception input BYTE GND connection CNVSS GND connection 8, 9 Not used OPEN reset Pull up XOUT Crystal oscillating element connection pin VSS connection Crystal oscillating element connection pin VCC connection NVI input (Not used)
  • Page 66 *PD5706A *PD8088A *S-818A33AUC-BGN A15/A-1 :Data output/Address input A0-A19 :Address input D0-D19 :Data output byte/VPP ON/OFF :Mode select/Power supply byte/VPP :Chip enable input :Output enable input :Power supply :GND D15/A-1 ON/OFF VOUT *TSOP1840SB3V *PDH0046A REGULATOR NOISE AGC :Not used :Power supply GAIN :Chip select input DET.
  • Page 67 - 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 FMRF CF202 IC 3 X901 IMG ADJ AM 2ND IF...

  • Page 68: Operation Flow Chart

    7.3 OPERATIONAL FLOW CHART Power ON VCC=5V Pin 16 BSENS Pin 73 BSENS=L ASENS Pin 74 ASENS=L DSENS Pin 41 DSENS=L ASENBO←H Pin 82 CSENS < < - CSENS 2V , 3V CSENS Pin 93 Last source returns. 2V<CSENS<3V CD and TAPE loading functions are available. Starts Keys except for EJECT key are not available.

  • Page 69: 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 Cassette heads Pinch rollers Cleaning paper : GED-008 Capstans KEH-P7020R...

  • Page 70: Operations And Specifications

    8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATIONS KEH-P7020R/XN/EW HEAD UNIT TA button VOLUME OPEN button ENTERTAINMENT button FUNCTION button DISPLAY button TEXT button AUDIO button / / / buttons SELECT SFEQ button SOURCE button 1-6 buttons EQ button BAND/ESC button REMOTE CONTROL ASSY ATT button BAND button SOURCE/OFF button...
  • Page 71 KEH-P7025/XN/ES HEAD UNIT ENTERTAINMENT button VOLUME OPEN button FUNCTION button CLOCK button PAUSE button DISPLAY button AUDIO button / / / buttons SELECT SFEQ button SOURCE button 1-6 buttons EQ button BAND/ESC button REMOTE CONTROL UNIT VOLUME buttons BAND button ATT button / / / buttons...
  • Page 72 KEH-P7020R...
  • Page 73 KEH-P7020R...
  • Page 74 8.2 SPECIFICATIONS KEH-P7020R/XN/EW Tone controls: General (Bass) Power source ..... 14.4 V DC Frequency ..40/63/100/160 Hz (10.8 – 15.1 V allowable) Gain ....±12 dB Grounding system ..Negative type (Treble) Max. current consumption Frequency ..2.5 k/4 k/6.3 k/10 k Hz ........
  • Page 75 KEH-P7025/XN/ES Tone controls: General (Bass) Power source ..... 14.4 V DC Frequency ..40/63/100/160 Hz (10.8 – 15.1 V allowable) Gain ....±12 dB(Treble) Grounding system ..Negative type Frequency ..2.5 k/4 k/6.3 k/10 k Hz Max. current consumption Gain ....
  • Page 76 PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER CORPORATION 1999 K-ZZB. OCT. 1999 Printed in Japan...
  • Page 77 CX-1011 1. MECHANISM DESCRIPTION 1.1 DRIVE OPERATION Inserting the cassette tape t Draw in t Put in down tRelease rt Forward play rt REW rt FF rt Reverse play Eject r Draw out r Lift r All motive force(except that for tape running) is supplied by the sub-motor. All the operation modes including tape insertion and ejection are switched via the mode gear.
  • Page 78 CX-1011 1.2 LOADING AND EJECT OPERATIONS(1) Load switch Load buffer lever Draw-in arm Draw-in lever Load drive lever Cassette tape - Loading operation 1. Insert a cassette tape into the slot. 2. The cassette tape pushes the draw-in lever. Then the load switch is turned ON via the draw-in arm and load buffer lever.
  • Page 79 CX-1011 1.3 LOADING AND EJECT OPERATIONS(2) Load buffer lever Load switch Draw-in arm bearing Load buffer lever Put-down Lift cam Lift position Put-down position Load drive lever Mode gear Load drive lever Mode gear - Loading operation 1. When the mode gear rotates, the load drive lever moves in the direction B marked with an arrow in the figure. 2.
  • Page 80 CX-1011 1.4 MODE CHANGEOVER mode arm Mode switch (Release) (FWD) (REW) (FF) (REV) F/R idler gear changeover Head base position changeover Foward pinch roller changeover Load-leber drive cam Drive Reverse pinch roller changeover The mode gear is rotated by rotation of the pre mode gear which is driven by the sub-motor. The modes are in series in the order of "release"rt"forward play"rt"REW"rt"FF"rt"reverse play".
  • Page 81 CX-1011 - Release Forward play gear Forward pinch roller Ratchet Forward flywheel Forward reel gear Mode gear Head base Reverse pinch roller Reverse reel gear Reverse play gear Reverse flywheel Fig.1...
  • Page 82 CX-1011 - Forward Play Forward play gear changeover Forward idler arm Fig.2...
  • Page 83 CX-1011 - REW F/R lever F/R idler gear Fig.3...
  • Page 84 CX-1011 - FF F/R lever Fig.4...
  • Page 85 CX-1011 - Reverse Play Reverse play gear changeover Reverse idler arm Fig.5...
  • Page 86 CX-1011 1.5 END SENSE...
  • Page 87 CX-1011 2. GREASE APPLICATION LOCATION AND GREASE NAME...
  • Page 88 CX-1011 - F/R Lever 1 Grease name <GS-FL> The root of Shaft. Slant-part as following figure. Section...
  • Page 89 CX-1011 - Chassis 1 and F/R Lever 2 Grease name <GS-FL> The slant-parts in left figure. The rubbing part between chassis and F/R lever. Grease name <CS-FL> The side of shaft (after fix F/R lever). The slant-parts in left figure. The rubbing part between F/R lever and shaft.
  • Page 90 CX-1011 - Idler arm Grease name <GS-FL> Grease name <GS-FL> Each the root of boss. Slant-part in left figure.
  • Page 91 CX-1011 - Chassis 2 1234567 Grease name <GS-FLB> Each the side of bearing. Rubbing part between bearing and mode gear. Grease name <GS-FLB> Grease name <GS-FLB> The part between carved seal and whole. Each the part between carved seals. Chassis and half-pierce of mode gear.
  • Page 92 CX-1011 - Mode gear and Chassis 3 Grease name <GS-FLB> Each the edge of cam (mode gear). Slant-part in left figure. Grease name <GS-FLB> Each the carved seal. Rubbing part between chassis and idle gear.
  • Page 93 CX-1011 - Chassis 4 Grease name <GS-PG641> Each the upper side of reel shaft (middle-step). Slant-part in left figure. The upper side of worm gear shaft. The side and bottom of worm gear shaft. Slant-part in left figure. The upper side of pre mode gear shaft. The side and bottom of pre mode gear shaft.
  • Page 94 CX-1011 - Put-down lever 1 The bend part. Rubbing part between load lever and HD base. Each the half-pierce. Grease name <GS-FL> The point in left figure. Rubbing part between load lever and edge (chassis). Each the half-pierce. Rubbing part between half-pierce and load buffer lever.
  • Page 95 CX-1011 - HD base Grease name <GS-FL> The side of shaft. The side and bottom of shaft. Slant-part in left figure.
  • Page 96 CX-1011 - Chassis 5 Grease name <GS-FL> The edge of slant-part in left figure. Rubbing between chassis and shaft of HD base. Grease name <GS-FL> The edge of slant-part in left figure. Rubbing between chassis and bend of HD base.
  • Page 97 CX-1011 - Mode arm Grease name <GS-FL> The part in left figure. Rubbing between mode arm and spring. Grease name <GS-FL> The half-pierce. Grease name <GS-FL> The 3-part in left figure. The 3'-part in left figure. Rubbing between mode arm and cam (mode gear).
  • Page 98 CX-1011 - Pre mode gear and Worm gear Grease name <GS-FL> Each the part in left figure. The lower gear all-round. Lower gear all-round. Grease name <GS-MPE> The part in left figure. Gear all-round (thin).
  • Page 99 CX-1011 - N/R Pinch holder Each the part in left figure. Grease name <GS-FL> Grease name <GS-FL> Each the part in left-upper figure. Rubbing between pinch holder and pinch spring.
  • Page 100 CX-1011 - Put-down lever 2 and Put-down buffer lever The edge of slant-part in left-upper figure. Grease name <GS-FL> The allow-part in left figure. The edge of slant-part in left figure. Rubbing between load buffer lever and bend (chassis). Grease name <GS-FL> The allow-part in left figure.
  • Page 101 CX-1011 - Idle gear Grease name <GS-FL> The allow-part in upper figure. Rubbing between between idler gear and idler arm.
  • Page 102 CX-1011 - Cassette frame and Draw-in arm The slant-part in left figure (Thin). Rubbing between cassette frame and draw-in lever. Grease name <GS-FL> The slant-part in left figure. Rubbing between draw-in arm and draw-in lever. Grease name <GS-FL>...
  • Page 103 CX-1011 3. DISASSEMBLY Screw - Remove the Cassette holder Motor unit 1. Remove the spring and the arm. 2. Remove the screw, and then remove the motor unit. 3. Straighten the frame unit pawl, and remove both Frame unit holder and frame unit. Spring Holder Washer...
  • Page 104 CX-1011 4. ADJUSTMENT Tape speed adjustment 4.1 TAPE SPEED ADJUSTMENT - Adjustment method 1. Load the test tape NCT-111 (3kHz, -10dB)and play. 2. Adjust the semi-fixed resistor so that frequency counter shows 3015Hz(+75Hz, –45Hz).
  • Page 105 CX-1011 4.2 CHECK POINTS OF CASSETTE MECHANISM - Tape speed deviation: - Wow and flutter: 3,000Hz +90Hz, –30Hz Less than 0.15%(WRMS) (4.76cm/s +3%, –1%) Using the NCT-111, measure the wow Confirm the following Using an NCT-111, measure the speed and flutter at the start and end of items when replacing at the start and end of winding and winding and take the maximum...

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