Philips MCD280 Service Manual Download Page 15 | Manualshive

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CIRCUIT DIAGRAM - KEY BOARD

CIRCUIT DIAGRAM - POWER BOARD

LAYOUT DIAGRAM - KEY BOARD

LAYOUT DIAGRAM - POWER BOARD

LAYOUT DIAGRAM - MICROPHONEBOARD

CIRCUIT DIAGRAM - MICROPHONE BOARD

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Summary of Contents for MCD280

Page 1: ...s Handling chip components 1 1 Technical specification 2 1 Service tools 2 1 Service measurement setup 2 2 Connections and controls 3 1 3 4 Pin description of ICs 3 5 Disassembly diagram 4 1 Set block diagram 5 1 Set wiring diagram 5 2 DISPLAY BOARD circuit diagram 6 1 layout diagram 6 2 KEY BOARD POWER BOARD MICPHONE BOARD circuit diagram 7 1 layout diagram 7 1 MPEG BOARD circuit diagram 8 1 8 4 ...

Page 2: ...allo stesso potenziale che quello della massa del pparecchio tramite un braccialetto a resistenza Assicurarsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified be used Safety components are marked by the symbol i Le norme di s...

Page 3: ...DISC Frequency response 20 Hz 20 kHz S N ratio A wght 70 dBA THD N 1kHz 0 5 Channel Separation 1kHz 40 dB Lim 30dB Channel unbalance 2dB VIDEO PERFORMANCE Amplitude output 1 0 Vpp 10 10 S N luminance 48 dB Video bandwidth 6 MHz Chroma Luminance delay 80ns SERVICE TOOLS Audio signal disc SBC 429 4822 397 30184 Playability test disc SBC 444 4822 397 30245 Test disc 5 disc without errors Test disc 5A...

Page 4: ...Ω Aerial replacement Capacitor R 50Ω Bandpass 250Hz 15kHz e g 7122 707 48001 LF Voltmeter e g PM2534 DUT S N and distortion meter e g Sound Technology ST1700B Frame aerial e g 7122 707 89001 Tuner AM MW LW To avoid atmospheric interference all AM measurements have to be carried out in a Faraday s cage RF Generator e g PM5326 Ri 50Ω Low pass filter 22kHz L R LEVEL METER e g Sennheiser UPM550 with F...

Page 5: ...3 1 1 2 3 ª 5 4 6 7 0 9 8 CONNECTION AND CONTROLS 1 2 6 3 4 5 6 7 0 7 9 8 ...

Page 6: ... the antenna for optimal reception MW Antenna Position the antenna as far as possible from a TV VCR or other radiation source FM Antenna For better FM stereo reception connect an outdoor FM antenna to the FM AERIAL FM ANTENNA terminal CONNECTION AND CONTROLS Connections Rear connections The type plate is located at the rear of the system A Power Before connecting the AC power cord to the wall outl...

Page 7: ...tripped portion of the speaker wire into the terminal as shown Notes For optimal sound performance use the supplied speakers Do not connect more than one speaker to any one pair of speaker terminals Do not connect speakers with an impedance lower than the speakers supplied Please refer to the SPECIFICATIONS section of this manual IMPORTANT The type plate is located on the rear of the system To avo...

Page 8: ...et only has a single Antenna In jack or labeled as 75 ohm or RF In you will need a RF modulator in order to view the DVD playback via TV See your electronics retailer or contact Philips for details on RF modulator availability and operations Using an accessory RF modulator Use the composite cable yellow to connect the system s CVBS jack to the video input jack on the RF modulator Use the RF coaxia...

Page 9: ...VDD DQ11 DQ3 DQ10 DQ2 DQ9 DQ1 DQ8 DQ0 OE VSS CE A0 SST39LF VF800A IC SST39LF VFx00A_Block Diagram BLOCK DIAGRAM 5V 18K 15K IN L 1µF 15K 1µF MUTE ST BY GND IN R 1µF 4 7Ω 4 7Ω 100nF 100nF OUT L OUT R 1000µF 1000µF VS 3 5 7 9 6 11 2 4 D94AU085 RL L RL R VS µP 560Ω 18K IN L 8 10 IN R 1 560Ω 18K PIN DESCRIPTION Symbol Pin Name Functions AMS 1 A0 Address Inputs To provide memory addresses During Sector ...

Page 10: ...e Main Board D To remove Bottom Plate E To remove Tape Deck F To remove Display Board G To remove Key Board G1 10 F1 4 D1 2 E1 4 B1 4 A9 2 C1 D2 C2 A7 2 A6 2 A8 2 A4 2 A1 A3 2 A5 2 2 A2 4 1x 3 3 2x 5 2x 5 2x 5 2x 5 5 2x 5 2x 3 2x 432 5 2x 5 2x 5 DISASSEMBLY DIAGRAM ...

Page 11: ... N G P O D N G P M D N G Y L P P U S G E P M D V D A V 2 1 R O T O M Y L P P U S P M A O E D I V R E T L I F R C E R K C A J A C R R E K A E P S K C A J R L N A F E N O H P R A E D V34B 1 T U O X A O C O E D I V V 0 3 2 C A V 5 D V 3 1 C A P D N G H C 2 T U O C E R C C V T E L B M A E T F E L K C O L C D N G 6 O C E R E N U T A T A D T H G I R O E R E T S O H C E R O S S E C O R P S F 3 5 2 9 U B ...

Page 12: ...5 2 5 2 SET WIRING DIAGRAM ...

Page 13: ...6 1 6 1 CIRCUIT DIAGRAM DISPLAY BOARD ...

Page 14: ...6 2 6 2 LAYOUT DIAGRAM DISPLAY BOARD ...

Page 15: ...7 1 7 1 CIRCUIT DIAGRAM KEY BOARD CIRCUIT DIAGRAM POWER BOARD LAYOUT DIAGRAM KEY BOARD LAYOUT DIAGRAM POWER BOARD LAYOUT DIAGRAM MICROPHONEBOARD CIRCUIT DIAGRAM MICROPHONE BOARD ...

Page 16: ...8 1 8 1 CIRCUIT DIAGRAM MPEG BOARD PART 1 ...

Page 17: ...8 2 8 2 CIRCUIT DIAGRAM MPEG BOARD PART 2 ...

Page 18: ...8 3 8 3 CIRCUIT DIAGRAM MPEG BOARD PART 3 ...

Page 19: ...8 4 8 4 CIRCUIT DIAGRAM MPEG BOARD PART 4 ...

Page 20: ...8 5 8 5 LAYOUT DIAGRAM MPEG BOARD ...

Page 21: ...8 6 8 6 LAYOUT DIAGRAM MPEG BOARD ...

Page 22: ...9 1 9 1 CIRCUIT DIAGRAM TAPE BOARD ...

Page 23: ...9 2 9 2 LAYOUT DIAGRAM TAPE BOARD ...

Page 24: ...10 1 10 1 CIRCUIT DIAGRAM COMBI BOARD PART 1 ...

Page 25: ...10 2 10 2 CIRCUIT DIAGRAM COMBI BOARD PART 2 ...

Page 26: ...10 3 10 3 LAYOUT DIAGRAM COMBI BOARD ...

Page 27: ...10 4 10 4 LAYOUT DIAGRAM COMBI BOARD ...

Page 28: ...11 1 11 1 403 7 502 6 4x 6 6 402 423 6 3x 7 4x 414 416 417 401 422 1 4x 2 2x 406 7 412 411 404 409 407 408 413 EXPLODED VIEW DIAGRAM ...

Page 29: ...B1 414 9940 000 00713 DVD DAMPER WHITE 40DEG 416 9940 000 00712 DVD DAMPER BLACK 30DEG 417 9940 000 00719 SERVO AND MPEG PCB ASSY 418 9940 000 00711 RUBBER FOOT 419 9940 000 00704 REAR CABINET 421 9940 000 00706 MIC KNOB 422 9940 000 00717 SPEAKER BOX 4 8OHM 30W 21M 422 9940 000 00734 SPEAKER BOX 4 8OHM 30W 30 423 2422 549 45067 ANT AM LOOP LAN 006 B FM ANT 4822 303 50063 FM AERIAL 9940 000 00684 ...

Page 30: ... CABLE Y 1C L 1500MM 9940 000 00697 RCA CABLE R W 2C L 1500MM 9940 000 00698 RCA CABLE R B G 3C L 1500MM T301 9940 000 00686 TRANSFORMER EI66 AC120 230V 21M T302 9940 000 00642 TRANSFORMER EI28 21M T301 9940 000 00736 TRANSFORMER EI66 30 T302 9940 000 00737 TRANSFORMER EI28 30 9940 000 00382 POWER AC WIRE VDE 230V 21M 9940 000 00733 AC POWER LINE H03VVH2 F 30 VR701 9940 000 00634 RESISTOR 50K VC40...

Page 31: ...12 2 ELECTRICAL PARTSLIST MISCELLANEOUS Note Only these parts mentioned in the list are normal service parts U801 4822 209 32082 TA8142AP U802 4822 209 30188 BA3126N ...

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