Ecler-MPA280-pwr-sm 电路图 维修手册.pdf

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1、 MPA280 SERVICE MANUAL RadioFans.CN 收音机爱 好者资料库 SERVICE MANUAL MPA280 INDEX - BLOCK DIAGRAM - SCHEMATICS - COMPONENTS LOCATION SCHEMA - TESTING AND QUALITY CONTROL - TECHNICAL CHARACTERISTICS - WIRING DIAGRAM - MECHANICAL DIAGRAM - PACKING DIAGRAM RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 PARTS

2、 LIST:PRINTED CIRCUIT 11.0649REV: MODEL: MPA280DRW.N 33.0259 and 260PLREPLACES: DATE: 15.01.98 SHEET 1 OF 5 REPLACED BY: REFERENCEVALUECODE C10122/35FCCE200220 C102C100pFCXCN21000 C10322/35FCCE200220 C104C100pFCXCN21000 C10522/35FCCE200220 C106C100pFCXCN21000 C10722/35FCCE200220 C108C100pFCXCN21000

3、C10910/50FCCE250100 C11010/50FCCE250100 C11110/50FCCE250100 C11210/50FCCE250100 C113C12pFCXCN11200 C114C47pFCXCN14700 C11547/16FCCE100000 C11618nFCXCN40180 C1174.7nFCXCN40047 C118Not assembled C11933nFCXCN40330 C12047/16FCCE100000 C12147/16FCCE100000 C122C47pFCXCN14700 C12347/16FCCE100000 C12447/16F

4、CCE100000 C125C47pFCXCN14700 C12647/16FCCE100000 C127470nFCXCN44700 C128470nFCXCN44700 C12922/35FCCE200220 C13010/50FCCE250100 C13110/50FCCE250100 C13222/100FCCE200220 C133100nFCXCN41000 C13422/35FCCE200220 C13522/100FCCE350220 C136100nFCXCN41000 C13733nFCXCN40330 C138470nFCXCN44700 C139470nFCXCN447

5、00 C14010/50FCCE250100 C14110/50FCCE250100 C14222/100FCCE350220 C143100nFCXCN41000 C14422/35FCCE200220 C14522/100FCCE350220 C146100nFCXCN41000 C14733nFCXCN40330 C14822/35FCCE200220 C149470nFCXCN44700 C150470nFCXCN44700 C15122/35FCCE200220 C15210/50FCCE250100 C15310/50FCCE250100 C15422/100FCCE350220

6、C155100nFCXCN41000 C15622/35FCCE200220 C15722/100FCCE350220 C158100nFCXCN41000 PARTS LIST:PRINTED CIRCUIT 11.0649REV: MODEL: MPA280DRW.N 33.0259 and 260PLREPLACES: DATE: 15.01.98 SHEET 2 OF 5 REPLACED BY: REFERENCEVALUECODE C15933nFCXCN40330 C160470nFCXCN44700 C161470nFCXCN44700 C16222/35FCCE200220

7、C16310/50FCCE200220 C16410/50FCCE200220 C16522/100FCCE350220 C166100nFCXCN41000 C16722/35FCCE200220 C16822/100FCCE350220 C169100nFCXCN41000 C17033nFCXCN40330 C17110/50FCCE250100 C17210/50FCCE250100 C17310/50FCCE250100 C17410/50FCCE250100 C17510000/63FCCE321000 C17610000/63FCCE321000 C177100nFCXCN410

8、00 C178100nFCXCN41000 D101BAS16FCXDDBAS16 D102Green led FCLED300VE D103BAS16FCXDDBAS16 D104Green ledFCLED300VE D105BAS16FCXDDBAS16 D106Green ledFCLED300VE D107BAS16FCXDDBAS16 D108Green ledFCLED300VE D109BAS16FCXDDBAS16 D110BYD17MFCXDD40070 D111BYD17MFCXDD40070 D112Z4.7FCXZ000047 D113Red ledFCLED300R

9、O D114BAS16FCXDDBAS16 D115BYD17MFCXDD40070 D116BYD17MFCXDD40070 D117Z4.7FCXZ000047 D118Red ledFCLED300RO D119BAS16FCXDDBAS16 D120BYD17MFCXDD40070 D121BYD17MFCXDD40070 D122Z4.7FCXZ000047 D123Red ledFCLED300RO D124BAS16FCXDDBAS16 D125BYD17MFCXDD40070 D126BYD17MFCXDD40070 D127Z4.7FCXZ000047 D128Red led

10、FCLED300RO D129Z16FCXZ000160 D130Z16FCXZ000160 D131FB3506LFCREC35065 HS101SERADHE 1237FCRAD12370 HS102SERADHE 1237FCRAD12370 HS103SERADHE 1237FCRAD12370 HS104SERADHE 1237FCRAD12370 HS105HEAD SINK 2906.6FCRAD29060 HS106HEAD SINK 2906.6FCRAD29060 IC101TL072FCIC072010 PARTS LIST:PRINTED CIRCUIT 11.0649

11、REV: MODEL: MPA280DRW.N 33.0259 and 260PLREPLACES: DATE: 15.01.98 SHEET 3 OF 5 REPLACED BY: REFERENCEVALUECODE IC102TL072FCIC072010 IC103TL072FCIC072010 IC104TL072FCIC072010 IC105TL072FCIC072010 IC106TL072FCIC072010 IC107TL072FCIC072010 IC108TDA7294FCIC729400 IC109TDA7294FCIC729400 IC110TDA7294FCIC7

12、29400 IC111TDA7294FCIC729400 J101YKC21-3035FCBASR0600 J102YKC21-3035FCBASR0600 J103YKD31-0496FCCTJAL100 J104YKD31-0496FCCTJAL100 J105350430-1FCCTAMP040 J106350430-1FCCTAMP040 J107350430-1FCCTAMP040 L10168HFCCHK00680 L10268HFCCHK00680 L10368HFCCHK00680 L10468HFCCHK00680 L1051HFCIND00200 L1061HFCIND00

13、200 L1071HFCIND00200 L1081HFCIND00200 Q101BC857BFCXTT08570 Q102BC857BFCXTT08570 Q103BC857BFCXTT08570 Q104BC857BFCXTT08570 Q105MJE15030FCTR150300 Q106MJE15031FCTR150310 R101100 OhmsFCXR021000 R102470kFCXR054700 R103100 OhmsFCXR021000 R104470kFCXR054700 R105100 OhmsFCXR021000 R106100kFCXR051000 R10710

14、0 OhmsFCXR021000 R108100kFCXR051000 R10910kAx2FCPR210040 R11022kFCXR042200 R11122kFCXR042200 R112100kFCXR051000 R11310kAx2FCPR210040 R11422kFCXR042200 R11510kAx2FCPR210040 R11622kFCXR042200 R11722kFCXR042200 R11822kFCXR042200 R119100kFCXR051000 R12010kAx2FCPR210040 R1211k5FCXR031500 R122MF332kFCXR15

15、3320 R123MF1kFCXR131000 R124MF1kFCXR131000 R1251k5FCXR031500 R126MF340kFCXR153400 R127MF1kFCXR131000 PARTS LIST:PRINTED CIRCUIT 11.0649REV: MODEL: MPA280DRW.N 33.0259 and 260PLREPLACES: DATE: 15.01.98 SHEET 4 OF 5 REPLACED BY: REFERENCEVALUECODE R128MF1kFCXR131000 R129MF1kFCXR131000 R130MF340kFCXR15

16、3400 R131MF1kFCXR131000 R1321k5FCXR031500 R133MF1kFCXR131000 R134MF332kFCXR153320 R135MF1kFCXR131000 R1361k5FCXR031500 R137150kFCXR051500 R13875kFCXR047500 R139150kFCXR051500 R14022kFCXR042200 R141100kFCXR051000 R14222kFCXR042200 R143MF97k6FCXR149760 R144MF97k6FCXR149760 R145Not assembled R146Not as

17、sembled R147MF36k5FCXR143650 R148100kFCXR051000 R14922kFCXR042200 R150MF1kFCXR131000 R15122kFCXR042200 R15210kFCXR041000 R15333kFCXR043300 R15422kFCXR042200 R15520 OhmsFCXR012000 R1562k2FCXR032200 R157MF18k2FCXR141820 R15822kFCXR042200 R15922kFCXR042200 R16033kFCXR043300 R161MF10kFCXR141000 R16222kF

18、CXR042200 R16320 OhmsFCXR012000 R1642k2FCXR032200 R165MF18k2FCXR141820 R166MF1kFCXR131000 R16722kFCXR042200 R16822kFCXR042200 R16933kFCXR043300 R170MF10kFCXR141000 R171MF1kFCXR131000 R17222kFCXR042200 R1732k2FCXR032200 R17420 OhmsFCXR012000 R175MF18k2FCXR141820 R17622kFCXR042200 R177MF10kFCXR141000

19、R17833kFCXR043300 R179MF1kFCXR131000 R18022kFCXR042200 R1812k2FCXR032200 R18220 OhmsFCXR012000 R183MF18k2FCXR141820 R18422kFCXR042200 R1853kFCXR033000 PARTS LIST:PRINTED CIRCUIT 11.0649REV: MODEL: MPA280DRW.N 33.0259 and 260PLREPLACES: DATE: 15.01.98 SHEET 5 OF 5 REPLACED BY: REFERENCEVALUECODE R186

20、3kFCXR033000 R18720 OhmsFCXR012000 R18820 OhmsFCXR012000 R18920 OhmsFCXR012000 R19020 OhmsFCXR012000 R19120 OhmsFCXR012000 R19220 OhmsFCXR012000 R19320 OhmsFCXR012000 R19420 OhmsFCXR012000 R1956k8FCXR036800 R1966k8FCXR036800 R1976k8FCXR036800 R1986k8FCXR036800 R1993kFCXR033000 R2003kFCXR033000 S101D

21、ial switch RS003-A066BQFCINTR0500 S102Switch 17128FCINTD4000 NORMS FOR CHECKING THE MPA POWER AMPLIFIER. - Connect a charge of 4 in each output channel CH1 CH2, CH3 and CH4 - Put the SIGNAL INPUT button on CH4 MONO - Put a 1 kHz 0dB signal in INPUT CH1 - Check that the 4 signal present and 4 clip le

22、d indicators are on. - Check the movement of the buttons and that each one acts independently on its own respective channel, at the same time check that the clip led indicator goes off when you go down approximately 2dB. Leave them on maximum. - Check the power of 230V at the mains Vo = 13.6v at 4 W

23、 = 46.24 Vo = 16.7 at 8 W = 34.86 - Check that the range goes from 20Hz-20kHz. - Put the button on 4 CH ST. - Put a signal in through INPUT CH1 and CH2, CH3 and CH4 act as a stack-out. - Check that there is a signal in each output and that the power is correct. - Position 4CH QUAD. - Check that each

24、 of the inputs CH1,CH2,CH3 and CH4 are independent and correspond to their respective outputs. Also check that the leds of clip and SP act with their corresponding input. - Position 2CH BRIDGED ST. - Put a charge of 8 in the red terminal of CH1-CH2 and do the same for CH3-CH4 ( see diagram on amp fo

25、r the correct connection) - Check that only the buttons of CH1 affect the output formed by CH1-CH2 and the buttonof CH4 affects the output formed by CH3-CH4. The clips should act with their respective group. The CH2 and CH3 buttons have no effect. Vo = 28.3 8 W = 100 - Position 2 CH ST. + 1 CH BRIDG

26、ED - Charge the CH1 and CH 2 outputs with 4 and CH3-CH4 in the red terminals with 8. - Check that the buttons of CH1 and CH2 affect their respective outputs and that the group CH3-CH4 acts with the CH4 button. The CH3 button has no effect. - The powers will be the same as in previous cases. STEREO a

27、t 4 Vo = 13.6 W = 46.24 MONO at 8 Vo = 28.3 W = 100 - Position 2CH ST.+1CH BRIDGED LOW. - Put signal in INPUT CH1, CH2 of 150 Hz 0dB. - It should act the same as in the previous case. STEREO at 4 Vo = 13.6 CH1,CH2 MONO at 8 Vo = 19.6 CH3-CH4 MPA280 QUALITY CONTROL. We will use a mixer with unbalance

28、d output and a nominal output level of 1V RMS as the signal source for our tests. Connect the mixer outputs to the power amplifier inputs. Plug the power amplifier to mains (check that its specified voltage matches that of mains) and make sure that SP and the power switch LEDs all light up . Turn up

29、 the amplifier output level until the CLIP LEDs light up. Turn the output level back down and plug the loudspeakers. Check the sound quality (no distorsions or noises). Check ATT action (ATT travel, signal cut at their low end, no scratching or clicking noises and correct stereo channel matching for

30、 each one). While the power amplifier is working shake it or throw it on a table to make sure the output sound goes on playing correctly. Shortcircuit the power amplifier output and check it goes back to normal operation when you stop shorcircuiting. Repeat the same procedure for the other channel.

31、TECHNICAL CHARACTERISTICS Output power (WRMS, 20Hz-20kHz, 1% THD) 1 Channel 4 Ohm 71W 4 Channels 4Ohm 4x55W 4 Channels 8 Ohm 4x40W 2 Channels 8 Ohm 2x112W Frequency response max output power(-1dB) 12Hz - 200kHz Harmonic Dist. + Noise 1kHz 0.06% Intermodulation distortion (SMPTE) 50Hz and 7kHz 4:1 ra

32、tio, nominal power 0.008% TIM 100 75dB ref. nominal power/4 92dB Damping factor 1kHz/8 150 Slew Rate 10Vs Channel crosstalk 1kHz 68dB Input connector RCA Sensitivity nom/impedance 0dBV(1V)/25k SIGNAL PRESENT indicators -40dBV Output connector Screw terminal CLIP indicators -1.5dB real clip Mains Dep

33、ending on your country. See characteristics in the back of the unit. Power consumption max. out. power/4 450VA Dimensions Front panel 482.6x88mm Chassis 440 x88x246mm Weight 7.5kg PARTS LIST:MECHANICAL DIAGRAMREV: MODEL: MPA280DRW.N 30.0085REPLACES: DATE: 17.03.98SHEET 1 OF 1REPLACED BY: QUANTITYVAL

34、UECODE 1FRONT PANEL WD.00.2243FCMECMPA30 1LOWER COVER WD.00.2240FCMECMPA20 1REAR PANEL WD.00.2254FCMECMPA60 1COVER WD.00.2241FCMECMPA50 1LEFT LATERAL WD.00.2242FCMECMPA40 1RIGHT LATERAL WD.002242FCMECMPA40 5WHITE CONTROL KNOB D15FCBOT15BL3 4NUT M5 DIN934FCTUE00500 1GROUND TERMINAL WD.00.1761FCBOR003

35、00 1WASHER M4 SEGFCARS40000 1TRANSFORMER WASHERFCMECARTR0 1WASHER M4 ADEFCARDE0300 1MAINS INPUT AC-13FCBASRE300 1TRANSFORMER WHITH ASSEMBLY KITFCTFTMPA00 2SPACER WLS-20-0FCSEPWLS20 1POWER SWITCHFCINTRED25 4SCREW 2.9x13 DIN7981FCT4002913 1SCREW M4x10 DIN 7985FCT7004010 22SCREW M4x6 SPANLO DIN 7985FCT

36、7504006 1ASSEMBLED PRINTED CIRCUIT 11.0649 PARTS LIST:PACKING DIAGRAMREV: MODEL: MPA280DRW.N 32.0030PLREPLACES: DATE: 18.05.98SHEET 1 OF 1REPLACED BY: QUANTITYVALUECODE 4METAL WASHER 5x11.5x0.8FCARN50000 4WASHER AT 5x11.5x3.5 ABSFCARAT3000 1PACKING BOX MPA280FCCAJP8800 1FUSE T 6.3AFCFUS50180 4BASE ADHESIVEFCPIE11255 2PROTECTING M872/1FCCANT0075 1BAG FOR MANUAL 120 x180mmFCBOL00200 1PLASTIC BAG 43x60cmFCBOLS0100 1PLASTIC BAG 60 x80mmFCBOL00100 1MANUAL MPA280FCMANMPA00 1WARRANTY CARDFCTARJG000 1MAIN SUPPLY CABLE STANDARDFCCONX0400