Pioneer KEH-3800R Service Manual Download Page 26 | Manualshive

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KEH-3830R,3800R,3820R

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4.2 FM/AM TUNER UNIT

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FM/AM TUNER UNIT

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Summary of Contents for KEH-3800R

Page 1: ...an ORDER NO CRT2257 HIGH POWER CASSETTE PLAYER WITH RDS TUNER KEH 3830R X1M EW Service Manual CONTENTS 1 SAFETY INFORMATION 2 2 EXPLODED VIEWS AND PARTS LIST 2 3 SCHEMATIC DIAGRAM 8 4 PCB CONNECTION DIAGRAM 22 5 ELECTRICAL PARTS LIST 32 6 ADJUSTMENT 39 7 GENERAL INFORMATION 41 7 1 PARTS 41 7 1 1 IC 41 7 1 2 DISPLAY 45 7 2DISASSEMBLY 46 7 3BLOCK DIAGRAM 47 8 OPERATIONS AND SPECIFICATIONS 48 KEH 382...

Page 2: ...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 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 2 EXPLODED VIEWS AND PAR...

Page 3: ...nt to mark on the product are used for disassembly 1 PACKING SECTION PARTS LIST Mark No Description Part No Mark No Description Part No Part No Mark No Description KEH 3830R X1M EW KEH 3800R X1M EW KEH 3820R X1M GR 8 Carton CHG3572 CHG3708 CHG3589 9 Contain Box CHL3572 CHL3708 CHL3589 12 1 Owner s Manual CRD2791 CRD2791 CRB1521 12 2 Owner s Manual CRD2792 CRD2792 Not used 12 3 Installation Manual ...

Page 4: ...4 KEH 3830R 3800R 3820R 2 2 EXTERIOR ...

Page 5: ... 33 Button See Contrast table 2 34 Button 1 6 CAC5785 35 Button See Contrast table 2 36 Button See Contrast table 2 37 Button See Contrast table 2 38 Button Eject CAC5793 39 Button Display CAC5934 40 Button See Contrast table 2 41 Button See Contrast table 2 42 Spring CBH2103 43 Cover See Contrast table 2 44 Housing CNV5528 45 Keyboard Unit See Contrast table 2 46 LCD LCD1901 CAW1542 47 Connector ...

Page 6: ...t CWE1466 CWE1466 CWE1470 27 Chassis Unit CXB3016 CXB3018 CXB3017 30 Detach Grille Assy CXB3325 CXB3880 CXB3324 33 Button Detach CAC5929 CAC5789 CAC5789 35 Button CAC5931 CAC5930 CAC5930 36 Button EQ CAC6136 CAC6135 CAC6135 37 Button CAC5797 CAC5783 CAC5783 40 Button Cross CAC5799 CAC5786 CAC5786 41 Button A B CAC5801 CAC5787 CAC5787 43 Cover CNS5131 CNS5130 CNS5130 45 Keyboard Unit CWM6262 CWM646...

Page 7: ...r ENC1417 27 Lever ENC1448 28 Arm ENC1488 29 Motor EXM1031 30 Belt ENT1027 31 Gear ENV1347 32 Collar ENV1508 33 Gear ENV1350 34 Flywheel ENV1500 35 Worm Gear ENV1439 36 Worm Wheel ENV1440 37 Gear ENR1028 38 Lever ENV1442 39 40 Gathering PCB ENX1037 41 Gathering PCB ENX1042 42 Switch S1 ESG1004 43 Motor Unit M2 EXA1485 44 Chassis Unit EXA1511 45 Pinch Holder ENV1485 46 Pinch Holder ENV1486 47 Reel ...

Page 8: ...e size SCH diagram Guide page Detailed page 4R7 16 223 B 4R7 16 EWmodel EWmodel EWmodel PM4006B PM2007A CN251 FM AM TUNER UNIT TAPE 9dBs FM 15 5dBs AM 26dBs For resistors and capacitors in the circuit diagrams their resistance values or capacitance values are expressed in codes Ex Resistors Code Practical value 123 12k ohms 103 10k ohms Capacitors Code Practical value 103 0 01uF 101 10 100uF 10V B...

Page 9: ...6 7 8 A B C D 5 6 7 8 EWmodel TUNER AMP UNIT FM 9 6dBs AM 0 9dBs TAPE 4dBs FM 35 6dBs AM 25 1dBs TAPE 22 0dB B REMOTE SYSTEM CONTROLLER ELECTRONIC VOLUME POWER AMP RESET 8V REGULATER A A CN1901 UNIT 332 16 PD4974A CEK1136 A A b ...

Page 10: ...10 KEH 3830R 3800R 3820R A 1 2 3 4 B C D 1 2 3 4 4R7 16 4R7 16 EWmodel EWmodel PM2007A FM AM TUNER UNIT FM 15 5dBs AM 26dBs B EWmodel EWmodel A a A a A b ...

Page 11: ...esistors and capacitors in the circuit diagrams their resistance values or capacitance values are expressed in codes Ex Resistors Code Practical value 123 12k ohms 103 10k ohms Capacitors Code Practical value 103 0 01uF 101 10 100uF 10V D CN1901 KEYBOARD UNIT EWmodel EWmodel PD4974A DECK UNIT C A a A a A b ...

Page 12: ...12 KEH 3830R 3800R 3820R A 1 2 3 4 B C D 1 2 3 4 TUNER AMP UNIT FM 9 6dBs AM 0 9dBs TAPE 4dBs FM 35 6dBs AM 25 1dBs TAPE 22 0dB ELECTRONIC VOLUME POWER AMP RESET A A 332 16 CEK1136 A a A b A b ...

Page 13: ...13 KEH 3830R 3800R 3820R 5 6 7 8 A B C D 5 6 7 8 EWmodel B REMOTE CONTROLLER 8V REGULATER 4A A b A a A b ...

Page 14: ...14 KEH 3830R 3800R 3820R A 1 2 3 4 B C D 1 2 3 4 3 2 FM AM TUNER UNIT B KEH 3830R X1M EW 3800R X1M EW 3 1 2 FM AM TUNER UN B ...

Page 15: ...15 KEH 3830R 3800R 3820R 5 6 7 8 A B C D 5 6 7 8 B ER UNIT A ...

Page 16: ...16 KEH 3830R 3800R 3820R A 1 2 3 4 B C D 1 2 3 4 B KEH 3820R X1M GR FM AM TUNER UN B ...

Page 17: ...17 KEH 3830R 3800R 3820R 5 6 7 8 A B C D 5 6 7 8 B ER UNIT A ...

Page 18: ...18 KEH 3830R 3800R 3820R A 1 2 3 4 B C D 1 2 3 4 CAW1542 3 3 KEYBOARD UNIT C ...

Page 19: ...19 KEH 3830R 3800R 3820R 5 6 7 8 A B C D 5 6 7 8 C KEYBOARD UNIT IL1901 1905 CEL1610 3830R 3820R CEL1605 3800R 40mA 14V EDIT TA PTY LOCAL BSM C CN601 A ...

Page 20: ...22 16 R283 0R0 R284 0R0 R282 0R0 C253 330P C254 330P C252 330P C251 330P R281 0R0 R255 220 C256 R01 R258 1K R301 18K R273 1K R274 1K R271 1K R272 1K R290 0R0 C403 R068 R403 82K C402 4700P C401 R33 R402 16K R401 4R7K R323 0R0 R257 1K C255 R01 C272 R1 C313 100P R386 0R0 R285 0R0 HD1 HEAD ASSY EXA1506 TEST TAPE NCT 150 400Hz 200nWb m RL RR FR FL Signal GND C302 R1 C302 R1 C301 R1 R304 R302 16K 16K R3...

Page 21: ... indicates the switch position R351 1K R352 1K R353 1K R354 1K R373 0R0 R355 270K C352 3900P R362 180 C351 R22 C353 R01 C354 R01 R374 0R0 C356 R01 C355 R1 D352 1SS355 M1 MOTOR UNIT MAIN MOTOR EXA1490 S1 LOAD ESG1004 S2 ESG1004 70µs MODE SENSE EGN1 EGN1005 EGN2 EGN1006 FWD END SENSE EGN3 EGN1006 REV END SENSE M2 MOTOR UNIT SUB MOTOR EXA1485 Power GND E F ...

Page 22: ...RAM 4 1 TUNER AMP 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 ...

Page 23: ...23 KEH 3830R 3800R 3820R 5 6 7 8 A B C D 5 6 7 8 A SIDE A B CN251 D ...

Page 24: ...24 KEH 3830R 3800R 3820R A 1 2 3 4 B C D 1 2 3 4 A A TUNER AMP UNIT ...

Page 25: ...25 KEH 3830R 3800R 3820R 5 6 7 8 A B C D 5 6 7 8 A SIDE B ...

Page 26: ...26 KEH 3830R 3800R 3820R A 1 2 3 4 B C D 1 2 3 4 4 2 FM AM TUNER UNIT B SIDE A B A FM AM TUNER UNIT ...

Page 27: ...27 KEH 3830R 3800R 3820R 1 2 3 4 A B C D 1 2 3 4 B SIDE B B FM AM TUNER UNIT ...

Page 28: ...KEH 3830R 3800R 3820R A 1 2 3 4 B C D 1 2 3 4 EDIT 4 3 KEYBOARD UNIT C C KEYBOARD UNIT 28 SIDE A ...

Page 29: ...29 KEH 3830R 3800R 3820R 1 2 3 4 A B C D 1 2 3 4 C C KEYBOARD UNIT CN601 A SIDE B ...

Page 30: ...30 KEH 3830R 3800R 3820R A 1 2 3 4 B C D 1 2 3 4 4 4 CASSETTE MECHANISM MODULE D D A HEAD ASSY M2 M1 DECK UNIT CN602 D DECK UNIT SIDE A SIDE B E ...

Page 31: ...31 KEH 3830R 3800R 3820R 1 2 3 4 A B C D 1 2 3 4 Fig 20 F E E PCB UNIT REEL PCB SIDE A SIDE B E F LOAD SW S1 70µ SW S2 MODE SENSE EGN1 1 4 7 1 2 3 4 5 6 E PCB UNIT D CN253 F ...

Page 32: ...0S102J R 411 RS1 10S103J R 412 EWmodel RD1 4PU103J R 413 RS1 10S393J Unit Number CWM6251 EWmodel CWM6250 GRmodel Unit Name Tuner Amp Unit MISCELLANEOUS IC 301 IC PML003AM IC 302 IC TDA7384 IC 501 IC PM2007A IC 601 IC PD4974A IC 602 IC S 80734AN IC 701 IC PM4006B IC 703 IC TA75S393F IC 901 IC TPD1018F L 501 Ferri Inductor LAU2R2K L 502 Ferri Inductor LAU2R2K L 601 Ferri Inductor LAU2R2K L 602 Ferri...

Page 33: ...630 RS1 10S681J R 631 RS1 10S681J R 632 RD1 4PU681J R 633 RD1 4PU681J R 634 RD1 4PU681J R 635 RD1 4PU222J R 636 RS1 10S472J R 637 RS1 10S103J R 638 RD1 4PU222J R 639 RS1 10S223J R 641 RD1 4PU222J R 642 RS1 10S473J R 643 RS1 10S472J R 644 RS1 10S472J R 645 RS1 10S472J R 651 RD1 4PU222J R 653 RS1 8S0R0J R 654 RS1 10S0R0J R 655 RS1 10S473J R 701 RS1 10S562J R 702 RS1 10S222J R 703 RS1 10S222J R 704 R...

Page 34: ...EJA4R7M35 C 712 CCSQCH100D50 C 713 CCSQCH220J50 C 714 CCSQCH220J50 C 717 CCSQCH101J50 C 901 CEJA101M10 C 902 CKSQYB473K50 C 903 470µF 16V CCH1183 C 904 CKSQYB103K50 C 905 330µF 10V CCH1181 C 906 CKSQYB103K50 C 907 100µF 16V CCH1179 C 908 CKSQYB103K50 C 910 CKSQYB472K50 Unit Number CWM6262 KEH 3830R X1M EW CWM6465 KEH 3800R X1M EW CWM6261 KEH 3820R X1M GR Unit Name Keyboard Unit MISCELLANEOUS IC 19...

Page 35: ...103K25 C 256 CKSRYB103K25 C 272 CKSQYB104K16 C 273 CEJA220M16 C 301 CKSYB104K50 C 302 CKSYB104K50 C 313 CCSQCH101K50 C 351 CKSYB224K25 C 352 CKSQYB392K50 C 353 CKSQYB103K50 C 354 CKSQYB103K50 C 355 CKSYB104K50 C 356 CKSQYB103K50 C 401 CKSQYB334K16 C 402 CKSQYB472K50 C 403 CKSQYB683K16 Unit Number Unit Name PCB Unit S 1 Switch Load ESG1004 EGN 1 Photo Interrupter EGN1005 Unit Number Unit Name Reel ...

Page 36: ...2J R 215 RS1 16S822J R 217 RS1 16S102J R 231 RS1 16S272J R 232 RS1 16S473J R 237 RS1 16S103J R 238 RS1 16S104J R 239 RS1 16S104J R 240 RS1 16S332J R 241 RS1 16S202J R 243 RS1 16S123J R 244 RS1 16S103J R 247 RS1 16S123J CAPACITORS C 1 CCSQCH6R0D50 C 2 CCSRCK2R0C50 C 4 CCSRCH820J50 C 6 CCSRCH820J50 C 8 CKSRYB103K25 C 9 CKSQYB104K16 C 10 CCSRCKR50C50 C 11 CEJA1R0M50 C 13 CKSRYB222K50 C 14 CCSRCH220J5...

Page 37: ...Crystal Resonator 10 26MHz CSS1111 VR 154 Semi fixed 150kΩ B CCP1213 AR 1 Capacitor with Discharge Gap DSP 201M RESISTORS R 1 RS1 16S0R0J R 4 RS1 16S154J R 5 RS1 16S391J R 6 RS1 16S223J R 7 RS1 16S123J R 8 RS1 16S332J R 9 RS1 16S473J R 10 RS1 16S223J R 11 RS1 16S124J R 13 RS1 16S563J R 15 RS1 16S271J R 16 RS1 16S104J R 17 RS1 16S332J R 18 RS1 16S332J R 31 RS1 16S470J R 32 RS1 16S822J R 33 RS1 16S8...

Page 38: ...M50 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 Miscellaneous Parts List M 1 Motor Unit Main EXA1490 M 2 Motor Unit Sub EXA1485 HD 1 Head Assy EXA1506 Fuse 10A CEK1136...

Page 39: ...Regulated Power Supply TUNER AMP UNIT 50 Ω 75Ω FM SSG Stereo Modulator 50Ω 37 5Ω AntennaPlug DummyAntenna DECK UNIT VR401 DC V Meter 2 SIDE B 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 TC1 DC V Meter 1 Q402 EMITTER 6 ADJUSTMENT Connection Diagram ...

Page 40: ...Position TUN Volt 1 108 0 L5 DC V Meter 1 6V IF 2 98 1 M 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 RF 5 129 3 M 60 80 107 9 TC1 mV Meter 1 Minimum Trimmer 6 RF Coil and RF Trimmer shall be adjusted twice or more IFT 7 98 1 M 5 98 1 T31 mV Meter 1 Maximum STEREO MODE ARC 8 98 1 S 40 98 1 VR154 mV Meter 1 Separation 5d...

Page 41: ...41 KEH 3830R 3800R 3820R 7 GENERAL INFORMATION 7 1 PARTS 7 1 1 IC CXA2559Q ...

Page 42: ...27 DRSENS I Door open close sense input 28 DRSYS O C Door system select output 29 FM O C FM power control output 30 AM O C AM power control output 31 CM O C Cassette mechanism capstan motor control output 32 NC Not used 33 VSS GND 34 SC2 O C Cassette mechanism sub motor control output 35 SC1 O C Cassette mechanism sub motor control output 36 MSIN I Cassette mechanism MS sense input 37 RIMUTE O N R...

Page 43: ...se input 67 NC Not used 68 VDD VDD 69 X2 O Oscillator output 70 X1 I Oscillator input 71 IC Connect to GND 72 XT2 Sub Clock terminal 73 TESTIN I Test program mode input 74 AVDD A D converter analog power supply VDD 75 AVREF0 I A D converter standard voltage input 76 SL I Signal level input 77 CL I Synchronizing signal input of display data latch 78 NL I Noise level input 79 MODELIN I Model select ...

Page 44: ...27 28 KS6 5 O Key strobe output 29 55 SEG39 13 O LLCD segment output 56 VCC Power supply 57 64 SEG12 5 O LCD segment output 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Vref IN1_L IN2_L IN3_L IN4 _L AGND Loud out_L SVin_L Front out_L Rear out_L FIE_L DGND IN4 _L CLK VCC IN1_R IN2_R IN3_R IN4 _R AGND Loud out_R SVin_R Front out_R Rear out_R FIE_R STB IN4 _R DATA Isolat...

Page 45: ...45 KEH 3830R 3800R 3820R 7 1 2 DISPLAY CAW1542 COMMON SEGMENT ...

Page 46: ...ht Remove the Tuner Amp Unit Removing the Case not shown 1 Remove the two screws 2 Remove the Case Removing the Cassette Mechanism Module not shown 1 Remove the four screws 2 Disconnect the connector and then removing the Cassette Mechanism Module Removing the Panel Unit Fig 1 Remove the two screws Disengage the stopper at two locations indicated and remove the Panel Unit Fig 1 Fig 2 Panel Unit Tu...

Page 47: ...47 KEH 3830R 3800R 3820R 7 3 BLOCK DIAGRAM KEH 3830R X1M EW B A D F E C ...

Page 48: ... 13 Left speaker 9 Yellow black If you use a cellular telephone connect it via the Audio Mute lead on the cellular telephone If not keep the Audio Mute lead free of any connections 12 To Auto antenna relay control terminal Max 300 mA 12 V DC 15 Front 16 Rear 25 With a 2 speaker system do not connect anything to the speaker leads that are not connected to speakers CAUTION Cords for this product and...

Page 49: ...elects the desired source in the following order Tuner Tape Note The sound source will not change when a cassette tape is not set in this unit 2 Raise or lower the volume 3 Turn the source OFF Hold for 1 second or more Each press changes the Source 8 1 OPERATIONS Key Finder Head Unit 5 2 3 buttons SOURCE OFF button button AUDIO button Detach button Buttons 1 6 Cassette door EJECT button LOCAL BSM ...

Page 50: ...M1 and F II FM2 and 6 MW LW stations can be stored in memory You can also use the 5 or buttons to recall broadcast stations memorized in buttons 1 through 6 Preset Number Indicator Band F I FM1 F II FM2 MW LW Basic Operation of Cassette Player Direction Change Direction Indicator Eject Note The Tape function can be turned ON OFF with the cassette tape remaining in this product Fast Forward Rewind ...

Page 51: ...m sec Fast forward rewinding time Approx 100 sec for C 60 Wow flutter 0 09 WRMS Frequency response Metal 30 16 000 Hz 3 dB Stereo separation 45 dB Signal to noise ratio 61 dB IEC A network FM tuner Frequency range 87 5 108 MHz Usable sensitivity 11 dBf 1 0 µV 75 Ω mono S N 30 dB 50 dB quieting sensitivity 16 dBf 1 7 µV 75 Ω mono Signal to noise ratio 70 dB IEC A network Distortion 0 3 at 65 dBf 1 ...

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