Pioneer KEH-3900R X1M/EW Service Manual Download Page 26 | Manualshive

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KEH-3930R,3900R

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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-3900R X1M/EW

Page 1: ...CASSETTE PLAYER WITH RDS TUNER KEH 3930R X1M EW Service Manual CONTENTS 1 SAFETY INFORMATION 2 2 EXPLODED VIEWS AND PARTS LIST 2 3 BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 9 4 PCB CONNECTION DIAGRAM 22 5 ELECTRICAL PARTS LIST 32 6 ADJUSTMENT 36 7 GENERAL INFORMATION 37 7 1 DISASSEMBLY 37 7 2 PARTS 38 7 2 1 IC 38 7 2 2 DISPLAY 42 8 OPERATIONS AND SPECIFICATIONS 43 KEH 3930R X1M EW This service manual sh...

Page 2: ...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 PARTS ...

Page 3: ...cription Part No Mark No Description Part No 1 PACKING SECTION PARTS LIST 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 Part No Mark No Symbol and Description KEH 3930R X1M EW KEH 3900R X1M EW 8 Carton CHG3844 CHG3843 9 Contain Box CHL3844 CHL3843 2 CONTRAST TABLE KEH 3930R X1M EW a...

Page 4: ...4 KEH 3930R 3900R 2 2 EXTERIOR ...

Page 5: ...Contrast table 2 41 LCD LCD1801 CAW1559 42 Connector CN1801 CKS3580 43 Holder CNC8517 44 Rubber CNV5954 45 Lighting Conductor CNV6274 46 Rubber CNV5968 47 Grille Unit See Contrast table 2 48 Button CAC4836 49 Spring CBH1834 50 Spring CBH1835 51 Spring CBH2182 52 Bracket CNC6135 53 Bracket CNC6791 54 Arm CNV4692 55 Arm CNV4693 56 Arm CNV4728 57 Panel Unit See Contrast table 2 58 Door See Contrast t...

Page 6: ...6 KEH 3930R 3900R 2 3 CASSETTE MECHANISM MODULE ...

Page 7: ...48 30 Worm Wheel ENV1550 31 Lever ENV1551 32 Flywheel ENV1554 33 Gathering PCB ENX1054 34 Switch S1 S2 ESG1007 35 Deck Unit EWM1023 36 Plug CN251 CKS3540 37 Gathering PCB ENX1053 38 Motor Unit M1 EXA1491 39 Motor EXM1028 40 Head Assy HD1 EXA1592 41 Motor Unit M2 EXA1580 42 Screw BMZ20P022FMC 43 Bracket ENC1528 44 Chassis Unit EXA1582 45 Pinch Holder Unit EXA1584 46 Pinch Roller ENV1518 47 Pinch Ho...

Page 8: ...8 KEH 3930R 3900R ...

Page 9: ...0 22 23 IC251 CXA2559Q IC351 PA2020A EQ AMP MECHANISM DRIVER CN251 CN252 CN254 CN255 CN253 7 5 TAPE B Lch 17 FWD L ch REV L ch 37 36 39 18 19 17 3 1 5 6 8 7 10 CN256 3 1 5 6 S1 LOAD S2 MODE EGN1 REEL SENSE M M M2 SUB MOTOR M1 MAIN MOTOR 5 2 1 E REEL SENSE PCB CN602 CN604 CN901 CN601 CN1801 VCK VDT VST ACC BACK UP FL FL RL RL TEL MUTE B REMOTE VCC LOUT RIMUTE LD STBY B8 B5 B6 B7 A4 A7 KEY MATRIX LC...

Page 10: ...ts of identical designation Symbol indicates a resistor No differentiation is made between chip resistors and discrete resistors NOTE Symbol indicates a capacitor No differentiation is made between chip capacitors and discrete capacitors For resistors and capacitors in the circuit diagrams their resistance values or capacitance values are expressed in codes Ex Resistors Code Practical value 123 12...

Page 11: ...2 11 10 B5 B6 B3 B4 B7 B8 B1 B2 A4 A7 A8 A5 CE SELECTOR TRONIC VOLUME POWER AMP 5V REGULATOR SWD 5V POWER SWITCH ACC SENSE BACK UP SENSE TELEPHONE MUTE 8 4V REGULATOR OFF MUTE SYSTEM MUTE M 15 5dBs M 26 0dBs APE 7 9dBs FM 7 5dBs AM 1 0dBs TAPE 2 9dBs FM 33 5dBs AM 25 0dBs TAPE 23 1dBs C KEYBOARD UNIT ...

Page 12: ...30R 3900R 1 2 3 4 1 2 3 4 D C B A ANTENNA JACK FM 100 15 5dBs AM 30 26dBs SYSTEM CONTROLLER RDS DECODER SOURCE SE ELECTRONI RESET FM 15 5dB AM 26 0dB TAPE 7 9d A a A a A b A B TUNER AMP UNIT FM AM TUNER UNIT 1 2 ...

Page 13: ...tween chip resistors and discrete resistors NOTE Symbol indicates a capacitor No differentiation is made between chip capacitors and discrete capacitors 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 SYSTE...

Page 14: ...K1136 2 1 4 3 7 8 5 6 13 B5 B6 B3 B4 B7 B8 B1 B2 A4 RCE SELECTOR TRONIC VOLUME POWER AMP 8 4V REGULATOR SYSTEM MUTE M 15 5dBs M 26 0dBs APE 7 9dBs FM 7 5dBs AM 1 0dBs TAPE 2 9dBs FM 33 5dBs AM 25 0dBs TAPE 23 1dBs A a A b A b 1 2 KEH 3930R 3900R ...

Page 15: ...15 5 6 7 8 5 6 7 8 D C B A TEL MUTE 12 11 10 A4 A7 A8 A5 5V REGULATOR SWD 5V POWER SWITCH ACC SENSE BACK UP SENSE TELEPHONE MUTE OFF MUTE A b A a A b 3 KEH 3930R 3900R C KEYBOARD UNIT ...

Page 16: ...3900R 1 2 3 4 1 2 3 4 D C B A B KV1410 23 KV1410 23 Mark None F0 F65 F125 A0 A74 A125 Band FM FM FM AM AM AM Input Level 0dBf 65dBf 125dBf 0dBµ 74dBµ 125dBµ DAN217U DAN217U 3 3 FM AM TUNER UNIT B A FM AM TUNER UNIT ...

Page 17: ...17 KEH 3930R 3900R 5 6 7 8 5 6 7 8 D C B A KV1410 23 B ...

Page 18: ...18 KEH 3930R 3900R 1 2 3 4 1 2 3 4 D C B A LCD DRIVER KEY CONTROLLER PD6293A CAW1559 C 3 4 KEYBOARD UNIT C KEYBOARD UNIT ...

Page 19: ...19 KEH 3930R 3900R 5 6 7 8 5 6 7 8 D C B A LOUD PTY TA AF LOCAL BSM KEH 3930R X1M EW KEH 3900 X1M EW IL1801 1804 CEL1638 14V 40mA CEL1547 14V 40mA C A CN601 ...

Page 20: ...2 1K R290 C403 R403 C402 3900P C401 R33 R323 0R0 R257 1K C255 R01 C272 R1 C313 100P R286 0R0 R285 0R0 HD1 HEAD ASSY EXA1592 TEST TAPE NCT 150 400Hz 200nWb m RL RR FR FL C302 R1 C301 R1 R304 R302 16K 16K R305 16K R303 16K 6dBs 388mV 1dB Fwd R Fwd L Rev R Rev L PBFB2 PBRIN2 PBGND PBFIN2 VCT PBREF PBFIN1 PBGND PBRIN1 PBFB1 PBTC1 PBOUT1 OUTREF1 TAPEIN1 VCC LINEOUT1 TCH1 MSLPF MSMODE DRSW TAPESW MUTESW...

Page 21: ...R401 4R7K R351 1K R352 1K R353 1K R354 1K R373 0R0 R355 270K C352 3900P R362 300 C351 R22 C353 R01 C354 R01 R374 0R0 C356 R01 C355 R1 D352 1SS355 M1 MOTOR UNIT MAIN MOTOR EXA1491 S1 LOAD ESG1007 S2 ESG1007 MODE REEL SENSE EGN1 EGN1004 M2 MOTOR UNIT SUB MOTOR EXA1580 RS3 RS2 RS1 SC2 SC1 TAB MC CE VCC2 NC VCC MCS RRS FRS RSB C TAB MS2 NC NC MM SM1 RSB GND RS mtl MCS load CN255 CN253 CN256 CN254 MECH...

Page 22: ...RAMS 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 2 Viewpoint of PCB diagrams A A Capacitor Connector P C Board Chip Part SIDE A SIDE B TUNER AMP UNIT C CN1801 CORD ASSY ...

Page 23: ...23 KEH 3930R 3900R 5 6 7 8 5 6 7 8 D C B A A REAR PREOUT L CH R CH ANTENNA JACK SIDE A B CORD CN251 D ...

Page 24: ...24 KEH 3930R 3900R 1 2 3 4 1 2 3 4 D C B A 1 3 4 6 1 3 4 6 1 3 4 6 A A TUNER AMP UNIT ...

Page 25: ...25 KEH 3930R 3900R 5 6 7 8 5 6 7 8 D C B A A SIDE B ...

Page 26: ...26 KEH 3930R 3900R 1 2 3 4 1 2 3 4 D C B A 4 2 FM AM TUNER UNIT SIDE A B FM AM TUNER UNIT A B ...

Page 27: ...27 KEH 3930R 3900R 1 2 3 4 1 2 3 4 D C B A SIDE B B FM AM TUNER UNIT B ...

Page 28: ...28 KEH 3930R 3900R 1 2 3 4 1 2 3 4 D C B A 4 3 KEYBOARD UNIT VOL VOL SOURCE 1 2 3 4 5 6 EJECT AUDIO BAND LOUD C C SIDE A KEYBOARD UNIT TA PTY LOCAL BSM ...

Page 29: ...29 KEH 3930R 3900R 1 2 3 4 1 2 3 4 D C B A C C SIDE B KEYBOARD UNIT A CN601 ...

Page 30: ...930R 3900R 1 2 3 4 1 2 3 4 D C B A IC Q IC251 Q351 Q352 ADJ VR302 VR301 IC253 CN252 CN254 CN253 CN255 M1 M2 HEAD ASSY CN256 21 22 DECK UNIT CN602 4 4 CASSETTE MECHANISM MODULE D DECK UNIT D A E SIDE A SIDE B D ...

Page 31: ...31 KEH 3930R 3900R 1 2 3 4 1 2 3 4 D C B A 1 2 3 4 5 6 S3 70µs SW S1 LOAD SW S2 MODE SW CN256 EGN1 REEL SENSE REEL SENSE PCB CN253 E D E ...

Page 32: ...0 D 901 Diode HZS7L C2 D 902 Diode S5688G D 903 Diode S5688G D 904 Diode HZS7L A1 D 905 Diode S5688G D 906 Diode HZS6L B2 D 907 Diode HZS9L C1 D 909 Diode S5688G D 910 Diode S5688G D 951 Diode 1SS270 D 952 Diode 1SS270 L 401 Ferri Inductor LAU4R7K L 402 Ferri Inductor LAU2R2K L 403 Inductor LAU100K L 601 Ferri Inductor LAU2R2K L 602 Ferri Inductor LAU2R2K L 650 Ferri Inductor LAU2R2K L 703 Inducto...

Page 33: ...2J R 951 RD1 4PU153J R 952 RD1 4PU472J R 953 RD1 4PU473J R 954 RD1 4PU102J R 955 RD1 4PU473J CAPACITORS C 310 CEJA2R2M50 C 311 CEJA2R2M50 C 312 CEJA2R2M50 C 313 CEJA2R2M50 C 314 CEJA2R2M50 C 317 CEJA100M16 C 318 CEJA100M16 C 319 CKSQYB822K50 C 320 CKSQYB822K50 C 321 CEJA1R0M50 C 322 CEJA1R0M50 C 323 CKSQYB183K50 C 324 CKSQYB183K50 C 325 CKSQYB104K16 C 326 CKSQYB104K16 C 327 CKSQYB104K16 C 328 CKSQ...

Page 34: ...S153J R 2 RS1 16S103J R 6 RS1 16S103J R 7 RS1 16S273J R 8 RS1 16S473J R 9 RS1 16S223J R 10 RS1 16S473J R 11 RS1 16S221J R 12 RS1 16S103J R 13 RS1 16S104J R 16 RS1 16S223J R 17 RS1 16S221J R 18 RS1 16S221J R 19 RS1 16S473J R 20 RS1 16S470J R 51 RS1 16S470J R 52 RS1 16S103J R 53 RS1 16S103J R 54 RS1 16S331J R 55 RS1 16S331J R 56 RS1 16S560J R 57 RS1 16S560J R 58 RS1 16S102J R 59 RS1 16S225J R 60 RS1...

Page 35: ...J50 C 904 CKSRYB223K25 C 905 CKSRYB103K50 C 906 CCSRTH100D50 C 907 CCSRTH150J50 C 909 CCSRTH100D50 C 910 CKSRYB332K50 C 912 CKSQYB474K16 C 913 CKSRYB223K25 C 914 CKSRYB682K25 C 915 CKSQYB223K25 C 916 CKSQYB474K16 C 917 CKSYB475K10 C 918 CKSRYB223K25 C 919 CKSQYB225K10 C 920 CCSRCH270J50 C 921 CCSRCH270J50 C 922 CKSYB105K16 C 923 CKSRYB103K50 Unit Number CWM6813 KEH 3930R X1M EW Unit Name Keyboard ...

Page 36: ...S0R0J R 374 RS1 8S0R0J R 401 RS1 16S472J R 402 RS1 16S183J R 403 RS1 16S823J CAPACITORS C 251 CKSRYB331K50 C 252 CKSRYB331K50 C 253 CKSRYB331K50 C 254 CKSRYB331K50 C 255 CKSRYB103K50 C 256 CKSRYB103K50 C 272 CKSRYB104K16 C 273 CEJA220M16 C 301 CKSRYB104K16 C 302 CKSRYB104K16 C 313 CCSRCH101J50 C 351 CKSYB224K25 C 352 CKSRYB392K50 C 353 CKSRYB103K50 C 354 CKSRYB103K50 C 355 CKSYB104K50 C 356 CKSRYB...

Page 37: ...ight Remove the Tuner Amp Unit Remove the Case not shown 1 Remove the two screws 2 Remove the Case Remove the Cassette Mechanism Module not shown 1 Remove the four screws 2 Disconnect the connector and then remove the Cassette Mechanism module Remove the Panel Unit Fig 1 Disengage the stopper at two locations indi cated by arrow Remove the Panel Unit Fig 1 Fig 2 Panel Unit Tuner Amp Unit Cassette ...

Page 38: ...llumination power supply control output 27 LOCH O C LOCH output 28 LOCL O C LOCL output 29 NC Not used 30 rimute O N RI output port 31 CM O C Cassette mechanism capstan motor control output 32 NR O N Dolby B NR output 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 39 NC Not used...

Page 39: ...se input 66 bsens I Back up power sense input 67 NC Not used 68 VDD VDD 69 X2 O Oscillator output 70 X1 I Oscillator input 71 GND Connect to GND 72 NC Not used 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 MODELIN I Model select input 78 NL1 I Noise level 1 input 79 NL2 I Noise level ...

Page 40: ...sed 33 55 SEG35 13 O LCD segment output 56 VDD Power supply 57 64 SEG12 5 O LCD segment output SN761029DL 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 VCC AVcc IN1 R IN1 L IN2 R IN2 L IN3 R IN3 L IN4 R 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 ...

Page 41: ...0R 3900R BR9010FV NC VCC CS SK WC GND DO DI 1 2 3 4 8 7 6 5 CS SK DI DO WC Chip select input Serial data clock input Serial data input Serial data output Write control input PM4009A S 80834ANY 1 2 3 1 OUT VDD VSS ...

Page 42: ...42 KEH 3930R 3900R COMMON SEGMENT 7 2 2 DISPLAY CAW1559 ...

Page 43: ...R 8 OPERATIONS AND SPECIFICATIONS 8 1 OPERATIONS 5 2 3 buttons SOURCE OFF button button AUDIO button Detach button Buttons 1 6 Cassette door EJECT button LOCAL BSM button PTY button TA AF button BAND button DISP button ...

Page 44: ...u can select the tuning method by changing the length of time you press the 2 3 button Manual Tuning step by step 0 5 seconds or less Seek Tuning 0 5 seconds or more Note If you continue pressing the button for longer than 0 5 seconds you can skip broadcast stations Seek Tuning starts as soon as you release the button Stereo indicator lights when a stereo station is selected Preset Tuning You can ...

Page 45: ...ayback Each press of the 2 button selects Rewind or Rewind Music Search REW Rewind R MS Rewind Music Search Normal Playback Note Fast Forward Rewind and Music Search can be canceled by pressing the BAND button Cassette Loading Slot Audio Adjustment Entering the Audio Menu With this Menu you can adjust the sound quality Note After entering the Audio Menu if you do not perform an operation within ab...

Page 46: ...vel with the 5 buttons The display shows 6 6 3 Adjust left right speaker bal ance with the 2 3 buttons BAL L9 BAL R9 is displayed as it moves from left to right 2 Adjust front rear speaker bal ance with the 5 buttons FAD F15 FAD R15 is dis played as it moves from front to rear Treble Adjustment TRE You can adjust a Treble level as desired 1 Press the AUDIO button and select the Treble mode TRE in ...

Page 47: ...te black 19 Gray 20 Gray black 21 Green 22 Green black 23 Violet 24 Violet black 14 Right speaker 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 15 Front 16 Rear 12 To system control terminal of the power amp or Auto antenna relay control terminal Max 300 mA 12 V DC ...

Page 48: ...orward rewinding time Approx 100 sec for C 60 Wow flutter 0 09 WRMS Frequency response 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 kHz stereo Frequen...

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