Philips MME140//78 Service Manual Download Page 15 | Manualshive

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CIRCUIT DIAGRAM - COMBI BOARD (CD/DISPLAY)

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Summary of Contents for MME140//78

Page 1: ...ying or otherwise without the prior permission of Philips Handling Chip Components 1 1 Service Tools 1 1 Leadfree and Safety Information 1 2 Technical Specification 2 1 Service Measurement Setup 2 2 Alignment Instruction 2 3 Connections and Controls 3 1 3 3 IC Pins Description 4 1 4 2 Set Block Diagram 5 1 Set Wiring Diagram 5 2 Circuit Diagram Combi board Tuner Tape AMP 6 1 Combi board CD Display...

Page 2: ...1 1 HANDLING CHIP COMPONENTS ...

Page 3: ...1 2 ...

Page 4: ...itivity at 26sb S N 4 4 mV M Selectivity at 18 kHz Bandwidth 18 dB IF rejection 45 dB Image rejection 28 dB Distortion 5 AMPLIFIER Output power 2 x 2 W RMS Speaker impedance 8 ohm Frequency response Within 3dB 60Hz 16 kHz Bass Boost ON 8dB 3dB at 60Hz Headphone output 32 mW 2dB at 32 Ω CASSETTE RECORDER Number of tracks 2 x 2 stereo Tape speed 4 76 cm sec 2 5 1 5 Wow and flutter 0 35 DIN Fast wind...

Page 5: ... 707 89001 Tuner AM MW LW To avoid atmospheric interference all AM measurements have to be carried out in a Faraday s cage Use a bandpass filter or at least a high pass filter with 250kHz to eliminate hum 50Hz 100Hz RF Generator e g PM5326 Ri 50 L R LEVEL METER e g Sennheiser UPM550 with FF filter S N and distortion meter e g Sound Technology ST1700B DUT CD RECORDER Use Audio Signal Disc SBC429 48...

Page 6: ...2 Set the BAND SELECTOR to FM position 3 Connect a SWEEPSCOPE OUTPUT to pin 21 of IC4 TA2111N through a 20pF capacitor and ground 4 Connect a SWEEPSCOPE INPUT to pin18 of IC4 TA2111N through a 1uF capacitor and ground STEP SET SIGNAL SET DIAL ADJUST ADJUST FOR BALANCED CURVE 1 10 7MHz GANG OPEN Check WITH 10 7MHz AT ZERO CROSSOVER FM R F ALIGNMENT 1 Connect an RF generator to the FM antenna termin...

Page 7: ...xx 3 1 CONNECTION AND CONTROLS 8 ...

Page 8: ...N THE SYSTEM IS POWERED ON 02 INDICATOR n FLASHES WHEN PROGRAM IS ACTIVE 2 0 4 INDICATOR n FLASHES LIGHTS UP WHEN REPEAT MODE IS ACTIVE 34 INDICATOR n LIGHTS UP WHEN STEREO SIGNAL IS RECEIVED 0 9 0 53 ÉÅ n STARTS OR PAUSES PLAYBACK 34 0Ç STOPS PLAYBACK ERASE A PROGRAM n SKIPS OR SEARCHES TRACKS PASSAGE BACKWARD FORWARD 3OURCE SELECTOR 45 2 4 0 n SELECTS RADIO OR TAPE n n n n n n MM HEADPHONE SOCKE...

Page 9: ...ERMINAL AND FULLY INSERT THE STRIPPED PORTION OF THE BLACK OR UNMARKED SPEAKER WIRES INTO THE SOCKET THEN CLOSE THE CLIP 7ARNING EVER MAKE OR CHANGE CONNECTIONS WITH THE MAINS SUPPLY SWITCHED ON 3PEAKERS TTACHING THE SUPPLIED SPEAKERS S SHOWN BELOW ALIGN THE TABS BETWEEN THE SPEAKER AND THE MAIN UNIT THEN SLIDE THE SPEAKERS DOWNWARDS UNTIL IT LOCKS INTO PLACE 2EPEAT THE SAME STEPS TO ATTACH THE OT...

Page 10: ...VSS P6 3 S16 ADin4 CLCK KEYAD2 P6 0 S13 ADin1 DOUT DOUT Sync rec FOO RFGC SEL DMO XO CVSS DVSS TRO FMO TEBC CVDD XI DVDD RO LO DVR TC94A29F FAG 008 SVFP64pin MCU Oscillator MCU Power supply TEI TEZI SBAD FEI RFRP VREF RFZI AVDD RFI SLCO AVSS VCOF LPFO TMAX PDO TES LPFN X Bass P8 0 MXI OSC RESET HOLD 8 1 MXO P2 0 COM1 P2 1 COM2 P2 3 COM4 P2 2 COM3 TEST P3 0 S1 P3 1 S2 P3 2 S3 P3 3 S4 P4 0 S5 P4 1 S...

Page 11: ...QSXW RQWURO 3RUW 5 QSXW 9 9 95 5 QSXW 5 53 QSXW QSXW TC94A29F FA 008 3LQ 1DPH VVLJQPHQW 2 XQFWLRQ 5HPDUN 6 QSXW 7 QSXW 7 QSXW 22 2XWSXW RQWURO 3RUW 752 2XWSXW 5 2XWSXW 7 2XWSXW 6 2XWSXW 02 2XWSXW 02 2XWSXW 9 9 RQWURO 3RZHU 2 2 2XWSXW N U VWDO RQQHFWLRQ RQWURO ORFN QSXW 966 1 9 9 52 2XWSXW 966 1 2 2XWSXW 95 5 6 7 5 6 7 QSXW 5HVHW QSXW FWLYH RZ 3 0 26 DVV 2XWSXW DVV RQ RII QLWLDO 3 0 2 2 QSXW 3RZHU ...

Page 12: ...5 1 5 1 SET BLOCK DIAGRAM ...

Page 13: ...A C MOTOR 6 N O C 1 N O C 0 2 N O C 1 2 N O C 8 2 N O C 3 1 N O C 7 2 N O C 7 N O C 5 N O C 1 N C O T 1 2 N C O T 7 2 N C O T 8 2 N C O T 0 2 N C O T 3 1 N C O T 2 C A 1 C A T N A 0 1 N O C B C P N I A M Y A L P S I D B C P 3 N O C SET WIRING DIAGRAM ...

Page 14: ...6 1 6 1 CIRCUIT DIAGRAM COMBI BOARD TUNER TAPE AMP ...

Page 15: ...6 2 6 2 48 33 32 32 17 16 1 64 49 CIRCUIT DIAGRAM COMBI BOARD CD DISPLAY ...

Page 16: ...7 1 7 1 LAYOUT DIAGRAM COMBI BOARD TOP VIEW ...

Page 17: ...8 1 8 1 LAYOUT DIAGRAM COMBI BOARD BOTTOM VIEW ...

Page 18: ...8 1 8 1 EXPLODED VIEW DIAGRAM ...

Page 19: ...27 9940 000 03696 FUNCTION KNOB 28 9940 000 03697 CD KNOB 29 9940 000 03698 BAND KNOB 30 9940 000 03699 REPEAT KNOB 31 9940 000 03701 PROGRAME KNOB 32 9940 000 03702 CASSETTE KNOB 33 9940 000 03703 CD DOOR LENS 34 9940 000 03704 DISPLAY LENS 35 9940 000 03705 CASS LENS 36 9940 000 03706 PLAY KNOB DECORATE RING 38 9940 000 03707 CASS DOOR ORNAMENT 39 9940 000 03708 POINTER 40 9940 000 03709 VOLUME ...

Page 20: ...RED L1 9940 000 03647 INDUCTOR 10UH 10 160MA L2 9940 000 03655 FM COIL 4 5X3 5T L3 9940 000 03653 BOBBIN COIL WHITE 1 1 2T L4 9940 000 03654 BOBBIN COIL ORANGE 3 1 2T L6 9940 000 03652 AM COIL 120 20T 100MM L7 9940 000 03647 INDUCTOR 10UH 10 160MA L8 9940 000 03647 INDUCTOR 10UH 10 160MA L9 9940 000 03647 INDUCTOR 10UH 10 160MA L10 9940 000 03647 INDUCTOR 10UH 10 160MA L22 9940 000 03646 INDUCTOR ...

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