Pioneer KEH-P2800 - Radio / Cassette Player Service Manual Download Page 11 | Manualshive

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KEH-P2800,P3850

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CASSETTE

PCB

24dBs

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Summary of Contents for KEH-P2800 - Radio / Cassette Player

Page 1: ...UNER KEH P2800 X1M UC Service Manual KEH P3850 X1M ES KEH P2800 X1M UC NOTE See the separate manual CX 644 CRT1800 for the cassette mechanism description The cassette mechanism assy employed in this model is one of 2M series This service manual does not describe the CD test mode For the operations in the CD test mode refer to the CD player s Service Manual CONTENTS 1 SAFETY INFORMATION 2 2 EXPLODE...

Page 2: ...x 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 If you are not qualified to perform the repair of this product properly and safely you should not risk trying to do so and refer the repair to a qualified service technician WARNING This product contains lead in solder and certain ele...

Page 3: ...Z50P080FMC 8 Polyethylene Bag CEG 158 CEG 158 9 Handle x2 CNC5395 CNC5395 10 Bush CNV3930 CNV3930 11 Polyethylene Bag CEG1173 CEG 162 12 Carton CHG3598 CHG3599 13 Contain Box CHL3598 CHL3599 14 Protector CHP1622 CHP1622 15 Protector CHP1623 CHP1623 16 Owner s Manual CRD2804 CRD2801 17 Owner s Manual Not used CRD2802 18 Installation Manual CRD2805 CRD2803 19 Card ARY1048 Not used 20 Case Assy CXB35...

Page 4: ...4 KEH P2800 P3850 2 2 EXTERIOR ...

Page 5: ...rew IMS20P030FZK 45 Detach Grille Assy See Contrast table 2 46 Screw BPZ20P120FZK 47 Button Detachable CAC5868 48 Button Eject CAC5870 49 Button REW CAC5872 50 Button FF CAC5874 51 Button F A Cross CAC5876 52 Button CAC5878 53 Button 1 6 D B CAC5880 54 Button CAC5882 55 Button SO OFF PGM CAC5884 56 Spring CBH1836 57 Spring CBH2103 58 Grille See Contrast table 2 59 Cover CNS5209 60 Keyboard Unit CW...

Page 6: ...6 KEH P2800 P3850 2 3 CASSETTE MECHANISM ASSY ...

Page 7: ...NC1446 39 Lever ENC1478 40 Belt ENT1027 41 Gear ENV1504 42 Gear ENV1470 43 Gear ENV1517 44 Lever ENV1472 45 Gear ENV1510 46 Gear ENV1475 47 Gear ENV1512 48 Gear ENV1513 49 Gear ENV1502 50 Lever ENV1480 51 Lever ENV1487 52 Pinch Holder Unit EXA1516 53 Arm ENV1519 54 PCB ENP1161 55 Switch Eject S4 ESG1006 56 Switch FWD REV S3 ESH1006 57 Switch Load S1 ESN1016 58 Switch Mute S2 ESN1017 59 Head Assy H...

Page 8: ...ECTION DIAGRAM GUIDE PAGE Note When ordering service parts be sure to refer to EXPLODED VIEWS AND PARTS LIST or ELECTRICAL PARTS LIST A a A b A a A b A b A a Large size SCH diagram Guide page Detailed page A a A FM AM TUNER UNIT CWE1467 UC CWE1486 ES CASSETTE PCB 24dBs 220 B D D ...

Page 9: ...9 KEH P2800 P3850 5 6 7 8 A B C D 5 6 7 8 A A b TUNER AMP UNIT KEYBOARD UNIT TAPE 25dBs TAPE 4dBs FM 5dBs AM 1dBs CD 10dBs TAPE 22dBs B PGM A C C ...

Page 10: ...10 KEH P2800 P3850 A 1 2 3 4 B C D 1 2 3 4 A a A a A b FM AM TUNER UNIT CWE1467 UC CWE1486 ES B ...

Page 11: ...11 KEH P2800 P3850 5 6 7 8 A B C D 5 6 7 8 A a A a A b CASSETTE PCB 24dBs 220 D D ...

Page 12: ...12 KEH P2800 P3850 A 1 2 3 4 B C D 1 2 3 4 A a A b A b TUNER AMP UNIT TAPE 25dBs TAPE 4dBs FM 5dBs AM 1dBs CD 10dBs TAPE 22dBs A ...

Page 13: ...13 KEH P2800 P3850 5 6 7 8 A B C D 5 6 7 8 A b A a A b KEYBOARD UNIT B PGM C C ...

Page 14: ...14 KEH P2800 P3850 A 1 2 3 4 B C D 1 2 3 4 3 2 FM AM TUNER UNIT B 3 1 2 FM AM TUNER D1 D2 RD39JS RD39JS R1 R2 2R2M 2R2M D6 MA157 CWE1467 KEH P2800 X1M UC B ...

Page 15: ...15 KEH P2800 P3850 5 6 7 8 A B C D 5 6 7 8 B NER UNIT IFC A ...

Page 16: ...16 KEH P2800 P3850 A 1 2 3 4 B C D 1 2 3 4 B 3 1 2 FM AM TUNER D1 D2 RD39JS RD39JS R1 R2 2R2M 2R2M D6 MA157 CWE1486 KEH P3850 X1M ES B ...

Page 17: ...17 KEH P2800 P3850 5 6 7 8 A B C D 5 6 7 8 B NER UNIT IFC A ...

Page 18: ...P UNIT 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 diagram 2 Viewpoint of PCB diagrams Capacitor Connector P C Board Chip Part SIDE A SIDE B A C CORD ASSY ...

Page 19: ...19 KEH P2800 P3850 5 6 7 8 A B C D 5 6 7 8 D A CN1 B SIDE A 2 1 3 IP BUS ...

Page 20: ...20 KEH P2800 P3850 A 1 2 3 4 B C D 1 2 3 4 A A TUNER AMP UNIT ...

Page 21: ...21 KEH P2800 P3850 5 6 7 8 A B C D 5 6 7 8 A SIDE B ...

Page 22: ...22 KEH P2800 P3850 A 1 2 3 4 B C D 1 2 3 4 4 2 FM AM TUNER UNIT CORD CDC1043 UC Only To Antenna Jack B SIDE A B A FM AM TUNER UNIT ...

Page 23: ...23 KEH P2800 P3850 1 2 3 4 A B C D 1 2 3 4 B SIDE B B FM AM TUNER UNIT ...

Page 24: ...KEH P2800 P3850 A 1 2 3 4 B C D 1 2 3 4 SOURCE PGM VOL VOL D 1 2 3 4 5 6 B A F LOUD CLOCK 4 3 KEYBOARD UNIT C C KEYBOARD UNIT 24 CN603 A SIDE B SIDE A C KEYBOARD UNIT ...

Page 25: ...2800 P3850 1 2 3 4 A B C D 1 2 3 4 D D CASSETTE PCB 4 4 CASSETTE MECHANISM ASSY 1 3 5 7 9 2 4 6 8 10 CN1 S3 FWD REV SW S4 EJECT SW R1 S2 MUTE SW D1 S1 LOAD SW M M1 MOTOR RR FR FL RL FWD REV PB HEAD HD1 CN604 A ...

Page 26: ...eing 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 Unit Number CWM6276 KEH P2800 X1M UC Unit Number CWM6349 KEH P3850 X1M ES Unit Name Tuner Amp Unit MISCELLANEOUS IC 201 IC LA3161P IC 301 IC PM2006A IC 401 IC SN761029DL IC 501 IC TDA7384 IC 601 IC PE5015A IC 602 IC S 80734AN IC 603 IC CA0008AM IC ...

Page 27: ...R 631 RS1 10S102J R 632 RS1 10S124J R 633 RS1 10S102J R 634 RS1 10S102J R 635 RS1 10S102J R 636 RD1 4PU473J R 637 RD1 4PU473J R 638 RS1 10S101J R 639 RS1 10S101J R 640 RS1 10S620J R 641 RS1 10S221J R 642 RS1 10S221J R 643 RS1 10S223J R 644 RS1 10S223J R 645 RS1 10S102J R 646 RS1 10S102J R 649 RS1 10S223J R 650 RS1 8S472J R 651 RD1 4PU222J R 655 RS1 10S223J R 656 RS1 10S103J R 657 RD1 4PU472J R 658...

Page 28: ... CKSQYB224K16 C 608 CEJA2R2M50 C 609 CKSQYB102K50 C 610 CKSQYB104K16 C 611 CEJA1R0M50 C 612 CEJA1R0M50 C 613 CEJA1R0M50 C 614 CEJA1R0M50 C 620 CCSQCH101J50 C 621 CCSQCH101J50 C 623 CKSQYB102K50 C 801 3300µF 16V CCH1018 C 802 470µF 16V CCH1183 C 803 CKSQYB102K50 C 804 CKSQYB473K50 C 805 CEJA101M10 C 806 CKSQYB103K50 C 807 330µF 10V CCH1181 C 808 CKSQYB103K50 C 809 CKSQYB104K16 C 811 100µF 16V CCH11...

Page 29: ... R 102 RS1 16S682J R 103 RS1 16S333J R 104 RS1 16S334J R 105 RS1 16S683J R 107 RS1 16S222J R 151 RS1 16S222J R 152 RS1 16S393J R 155 RS1 16S273J R 156 RS1 16S243J R 157 RS1 16S203J R 160 RS1 16S222J R 161 RS1 16S563J R 162 RS1 16S105J R 163 RS1 16S223J R 202 RS1 16S223J R 203 RS1 16S225J R 204 RS1 16S103J R 206 RS1 16S220J R 207 RS1 16S101J R 208 RS1 16S102J R 209 RS1 16S471J R 214 RS1 16S822J R 2...

Page 30: ...1 D 6 Diode MA157 D 7 Diode KV1410 F1 D 8 Diode KV1410 F1 D 201 Diode MA157 D 202 Diode MA157 D 231 Diode SVC253 L 2 Coil CTC1133 L 3 Inductor LCTB2R2K2125 L 4 Coil CTC1133 L 5 Coil CTC1132 L 6 Inductor LCTBR15K1608 L 51 Ferri Inductor LAU150K L 201 Ferri Inductor LAU4R7K L 202 Ferri Inductor LAU330K L 203 Inductor CTF1287 L 208 Inductor LAU121K L 231 Inductor LCTA3R3J3225 T 31 Coil CTE1117 T 51 C...

Page 31: ...CEJAR22M50 C 101 CEJANP100M10 C 102 CKSRYB182K50 C 103 CKSRYB682K25 C 104 CEJA2R2M50 C 105 CKSRYB103K25 C 106 CCSRCH151J50 C 107 CKSRYB103K25 C 151 CKSRYB472K50 C 152 CKSQYB104K16 C 153 CEJA3R3M50 C 154 CKSQYB104K16 C 157 CEJA3R3M50 C 158 CKSYB474K16 C 159 CEJA220M6R3 C 160 CKSQYB104K16 C 161 CKSQYB104K16 C 162 CEJA3R3M50 C 163 CKSRYB102K50 C 170 CCSRCH100D50 C 201 CCSRCH471J50 C 202 CCSRCH100D50 ...

Page 32: ...P ACC GND 14 4V GND Antenna mV Meter 1 Oscilloscope DC Regulated Power Supply TUNER AMP UNIT 50Ω 75Ω FM SSG Stereo Modulator 50Ω 37 5Ω Antenna Dummy Antenna FM AM TUNER UNIT TOP VIEW T31 T51 C63 T51 Center Meter FM AM TUNER UNIT BOTTOM VIEW Pin1 Pin13 Pin14 Pin 19 Pin26 L2 L4 L5 VR154 DC V Meter 1 ...

Page 33: ... 60 100 98 1 T51 Center Meter 0 ANT Coil 3 98 1 M 5 98 1 L2 mV Meter 1 Maximum RF Coil 4 98 1 M 5 98 1 L4 mV Meter 1 Maximum IFT 5 98 1 M 5 98 1 T31 mV Meter 1 Maximum STEREO MODE ARC 6 98 1 S 40 98 1 VR154 mV Meter 1 Separation 5dB STEREO MODE FM ADJUSTMENT ES MODEL FM SSG Displayed Adjustment Adjustment Method No Frequency MHz Level dBf Frequency MHz Point Switch Position TUN Volt 1 108 0 L5 DC ...

Page 34: ...IN4 L IN4 R IN4 L AGND AGND SWout R SWout L ZCin R ZCin L LOUD R LOUD L VRin R VRin L TREB R TREB L BASS C1 R BASS C1 L BASS R R BASS R L BASS C2 R BASS C2 L NC NC TONEout R TONEout L FADERin R FADERin L FRNTout R FRNTout L REARout R REARout L DVcc VREFin DATA AGND CLK DGND STB Ct 3 Line Serial Bus Bass Treble Volume Loudness Fader Gain Adjust Isolator Zero cross Detector Power Supply Bass Treble ...

Page 35: ...28 mute O C System mute output 29 DMINH O C Mechanism mute cancel output 30 32 NC Not used 33 GND GND 34 37 NC Not used 38 FM O C FM power control output 39 AM O C AM power control output 40 ASENBO O C Slave power supply control output 41 49 NC Not used 50 eject I Eject key input 51 tapld I Tape loading input 52 MECPW O C Cassette mechanism power output 53 mcmut I Mechanism mute input 54 NOR rev I...

Page 36: ...Display data input 19 NC Not used 20 KYDT O Key data output 21 MODA GND 22 X0 Crystal oscillator connection pin 23 X1 Crystal oscillator connection pin 24 VSS GND 25 26 KDT2 3 I Key data input 2 3 27 28 KST5 4 O Key strobe output 5 4 29 55 SEG39 13 O LCD segment output 39 13 56 VCC 5V 57 64 SEG12 5 O LCD segment output 12 5 IC s marked by are MOS type Be careful in handling them because they are v...

Page 37: ...37 KEH P2800 P3850 PA4023B ...

Page 38: ...38 KEH P2800 P3850 7 1 2 DISPLAY CAW1513 SEGMENT COMMON ...

Page 39: ...til straight Remove the Tuner Amp Unit Removing the Case not shown 1 Remove the three screws 2 Remove the Case Removing the Cassette Mechanism Assy not shown 1 Remove the four screws 2 Disconnect the connector and then removing the Cassette Mechanism Assy Removing the Panel Unit Fig 1 Disengage the stopper at two locations indicated Remove the Panel Unit Fig 1 Fig 2 Panel Unit Tuner Amp Unit ...

Page 40: ...KEH P2800 P3850 7 3 EXPLANATION 7 3 1 BLOCK DIAGRAM KEH P2800 X1M UC A B D C 40 ...

Page 41: ... 300 mA 12 V DC Rear Rear Use this for connections when you have the sepa rately available amplifier To vehicle metal body Rear Rear Left speaker Right speaker Front Front Black Red Yellow White White black Gray Gray black Green Green black Violet black Violet With a 2 speaker system connect to the 2 speak ers in the front or the rear Power amp sold separately Connection Diagram CAUTION Cords for ...

Page 42: ...button Detach button Programmable button 5 2 3 buttons buttons Basic Operation of Cassette Player 1 Insert the cassette tape 2 Switch tape playback from side A to side B or vice versa 3 Raise or lower the volume 4 Remove the cassette tape Note The Tape function can be turned ON OFF with the cassette tape remaining in this product Same Time Using the Cassette Player ...

Page 43: ...select a weak broadcasting station that cannot be tuned in with the Seek Tuning function tune in with Manual Tuning F I F II F III AM Each press changes the Source Tuner Operation 4 Raise or lower the volume 5 Turn the source OFF Entering the Function Menu In this menu you can select tuner functions Select the desired mode in Function Menu Each press of the Function button selects the mode in the ...

Page 44: ...a desired phrase or section of music Hold for 1 second Each press changes the Source Using CD Player one disc only Using Multi CD Players This product can control one or more multi CD players Basic Operation of Multi CD Players 1 Select the multi CD player source Note The multi CD player may perform a preparatory operation such as verifying the presence of a disc or reading disc information when t...

Page 45: ...FAD 00 is the proper setting when 2 speakers are in use 3 Shift the balance to the left or right speaker respectively BAL L9 BAL R9 is displayed as it moves from left to right Each press changes the Mode Bass Treble Adjustment This product is equipped with two tone adjustment modes the Bass Adjustment and Treble Adjustment modes 1 Select Bass Adjustment mode or Treble Adjustment mode After adjustm...

Page 46: ...710 kHz Usable sensitivity 18 µV S N 20 dB Selectivity 50 dB Note Specifications and the design are subject to possible modification without notice due to improvements Specifications KEH P3850 X1M ES General Power source 14 4 V DC 10 8 15 1 V allowable Grounding system Negative type Max current consumption 8 5 A Dimensions DIN chassis 178 W 50 H 150 D mm nose 188 W 58 H 19 D mm D chassis 178 W 50 ...

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