Alto-D2-pwr-sm维修电路原理图.pdf

《Alto-D2-pwr-sm维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《Alto-D2-pwr-sm维修电路原理图.pdf（48页珍藏版）》请在收音机爱好者资料库上搜索。

1、MODEL: D1/D2/D3/D4RadioFans.CN 收音机爱 好者资料库CONTENT1. INTRODUCTION.12. TECHNICAL SPECIFICATION.23. BLOCK DIAGRAM.34. SCHEMATIC DIAGRAM.55. WIRING DIAGRAM106. PCB LAYOUT.127. TEST PROCEDURE.218. EXPLODED VIEW & MECHANICAL PARTS LIST.279. BOM.36RadioFans.CN 收音机爱 好者资料库Fantastic audio quality even with ext

2、remely high volume levelsSolid and durable, can be mounted into a cabinetAutomatic limiterStereo (dual-channel), or bridge mono operating modesBalanced XLR,6.3 inputs / parallel outputs to ensure noiseless long wiringBinding post and professional speak-on connectors for outputStereo, bridge, and par

3、allel output wiring possibilityFront panel LED indicators for power-on, signal, protection and clipAccurate gain controlIndependent DC, thermal, overload and short-circuit protection on each channel automatically protects amplifierand speakerUsed together with line array cabinet in one audio systemM

4、anufactured under TS16949, ISO 14001 certified management system and RoHS directive2U rack, multi-channel high power amplifierClass D technology, switch power, light weight and high powerTheD series includes D1, D2, D3, D4. It is a line of high power, low profile, professional Power Amplifiers withL

5、TOadvanced features and great reliability. They deliver tremendous power in only two rack spaces, providing high levelperformance under the most demanding conditions. An automatic speed fan matches cooling capacity with heatrequirements. The amplifier frame contains all solid-state circuitry, using

6、complementary silicon output devices. Theamplifier is supplied with a single moulded AC cord having an appropriate AC plug for the intended operating voltage.The amplifier employs forced air cooling with a variable speed fan for minimum acoustic noise. Air flow is from rear tofront to avoid temperat

7、ure rise inside the Rack. D1, D3 contain two independent channels and D2, D4 contain fourindependent channels, with separate AC transformer secondaries, power supplies and protection system. All protectionsystems, except the main AC one, are self resetting upon removal of fault, and the remaining ch

8、annel shall continueto operate. Each channel has independent protective circuitry against short circuit, over-loads and over temperature,and also has DC protection. Each channel has also LEDs for power-on, signal, clip and protection. Standard powerconnectors are used for. Input can be parallel or s

9、tereo or bridge and an high quality audio transformerpower outputscan be added on the input stage of each channel. It provides the following features:1. INTRODUCTION- 1 -RadioFans.CN 收音机爱 好者资料库14.8(376mm) deep11.2(285mm) deepIndicators (1per channel)Distortion(AMPTE-IM)Frequency ResponseDamping Fact

10、or, at 8 ohmsOutput powerPower continuous 0.5% THD . Both channels driven, 230V8ohms per channel(RMS)4ohms per channel(RMS)Power EIAJ1% THD, both channels driven, 230V8ohms per channel(EIAJ)4ohms per channel(EIAJ)BRIDGED MODE16ohms (EIAJ)8ohms (EIAJ)Load ProtectionPower RequirementsSignal to Noise,

11、20Hz -20KHzVoltage GainInput Sensitivity 4ohmsInput ClippingInput ImpedanceD1D2D3D42CH Amplifier4CH Amplifier2CH Amplifier4CH Amplifier2 X 240W2 X 390W4 X 240W4 X 390W2 X 340W2 X 540W4 X 340W4 X 540W2 X 270W2 X 500W4 X 270W4 X 500W2 X 370W2 X 750W4 X 370W4 X 750W1 X 520W1 X 1000W2 X 520W2 X 1000W1 X

12、 740W1 X 1500W2 X 740W2 X 1500W0.5%(THD, DIM, SMPTE)20Hz-20kHz+/-0.1dB, -3dB points: 10Hz - 60kHz300 at 8ohms500200105dB/A weighted40 X (32dB)1Vrms10Vrms (+2)2dB10k ohms unbalanced, 20k ohms balanced 56(36dB)Front: AC switch, gain knobsPower-on: blueOperation/Protection: redClip: redRear: low pass f

13、ilter, mode selector100Continuously 7-variable-speed fan, rear- to - front air flowOn/off muting, DC-fault load grounding relay. Internal fault fusesAC230V,AC115V, 50-60Hz19(483mm) rack mounting, 3.5(88.8mm) tall (2 rack spaces)11.2(285mm) deep5.50Kg7.90Kg7.90Kg5.50Kg100HzCooling10KHzControls1KHzDim

14、ensionsNet Weight14.8(376mm) deep2. TECHNICAL SPECIFICATION- 2 - RadioFans.CN 收音机爱 好者资料库123456ABCD654321DCBAMBREAKERAC INAC SWDIGIMODSIG INCH2 VRCH1 VRCH3 INCH4 INGNDGNDCH1 SPCH2 SPFANLEDSINPROTCLIPD4 FAN POWER123SWSLIDE-ABRIDGEDPARALLELSTEREO3. BLOCK DIAGRAM- 3 -RadioFans.CN 收音机爱 好者资料库1234ABCD4321D

15、CBAMBREAKERAC INAC SWDIGIMODSIG INCH2VRCH1VRCH1INCH2INGNDGNDCH1SPCH2SPDIGIMODSIG INCH4VRCH3VRCH3INCH4INGNDGNDCH1SPCH2SPFANLEDSINPROTCLIPSINPROTCLIP123SWSLIDE-ABRIDGEDPARALLELSTEREO123SWSLIDE-ABRIDGEDPARALLELSTEREO- 4 -RadioFans.CN 收音机爱 好者资料库123456ABCD654321DCBA321U2ANJM458084U2CNJM4580C2090.1uFC2100

16、.1uFC2110.1uFC2120.1uFGND123CN2032.54 3P+12V1-12V1C20422uF/50VC20322uF/50V123CN101CON3321U1ANJM4580567U1BNJM4580C1064.7uF/50VC1074.7uF/50VR10110KR10210KR10310KR10415KR10547KGNDC10333pFC1051uF123CN201CON384U1CNJM4580567U2BNJM4580C2064.7uF/50VC2074.7uF/50VC20833pFC2141uFR20110KR20310KR20210KR20715KR20

17、847KGNDC2150.1uFC1090.1uFR106100RR206100C1041uFC2131uF12TSG3RJK101LA1117-L12TSG3RJK201LA1117-LR21622kR12122kR22122kR11622kR11215k567U3BNJM4580321U3ANJM4580567U4BNJM4580321U4ANJM458084U3CNJM458084U4CNJM4580C11133PR11112KR11010KR11368RR11418KR11915KR11518KR1188K2C11347UFC11033PC11233PC11433PC21933PC21

18、733PGNDGNDR12068RC11547UFGNDGNDR11710KR21915KR22068RR21812KR21710KR21418KR21518KR21368RR21010KGNDC22047UFC21633PC22147UFGNDGNDR21215KC21833PR2118K2GNDR810KR710KR1010KR910KC10133PC10233PC20133PC20233PGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDR210KR610K12345678910111213141516SW102HSWL-3/16P321U5ANJM4580567U

19、5BNJM458048U5CNJM4580GNDR127KR427KR51KGNDC133P246SW101BHSWA-2/3P153SW101AHSWA-2/3PCH1CH2123456CN1CN-6PGNDR327K4. SCHEMATIC DIAGRAMD3 INPUT(1/1)- 5 -RadioFans.CN 收音机爱 好者资料库1234ABCD4321DCBA321IC1-1ALM4558321IC2-3ALM4558R1-410kR2-310kR1-210kR2-210kGNDGND1R1-110kR2-110k84IC1-1CLM4558R2-410kR1-510kLED2_1

20、REDLED1_1REDGND1GNDPROTECT3PROTECT1+12VDC1+12VDC567IC2-3BLM4558567IC1-1BLM4558R2-710kR1-710kR2-610kR1-310kGND1GNDR2-510kR1-610kR2-810kR1-810kLED2_2REDLED1_2REDGND1GNDPROTECT4PROTECT2+12VDC1+12VDC84IC2-3CLM455812345678CN2CON8PROTECT4PROTECT3+12VDC1GND1Q2-2C1815Q2-1C1815Q2-3C1815C2-110UFC2-210UFR2-982

21、0KR2-11100kR2-131kR2-185kR2-142.2kR2-1710kR2-232.2kR2-192.2kD2-14148GND1GND1GND1Q2-5C1815Q2-7C1815Q2-6C1815C110UF25VC210UFR2-10820KR2-12100kR2-151kR2-215kR2-162.2kR2-2010kR2-242.2kR2-222.2kD2-34148GND1GND1+12VDC1GND1C2-347UFC1-547UF12345678CN1CON8GNDPROTECT1+12VDCPROTECT2+12VDCGNDQ1-1C1815Q1-7C1815Q

22、1-2C1815C1-110UFC1_210UFR1-9820kR1-11100kR1-131kR1-215kR1-142.2kR1-1710kR1-232.2kR1-182.2kGNDD1-34148GNDGNDD1-44148GNDR1-252.2KR1-202.2kR1-242.2kR1-1910kGNDR1-225kQ1-4C1815R1-151kQ1-8C1815R1-12100kQ1-5C1815R1-10820KC1-410UF/25VC1-310UF/25V123CN3CON3123CN4CON3123CN5CON3123CN6CON3VR1VRVR2VRVR3VRVR4VRL

23、ED1_3REDLED1_4GRNLED1_5REDLED1_6GRNLED2_5REDLED2_6GRNLED2_3REDLED2_4GRN+12VDCRadioFans.CN 收音机爱 好者资料库1234ABCD4321DCBADL1LEDDL2LEDDL3LEDDLLEDGV+D3-LED(1/1)- 7 -RadioFans.CN 收音机爱 好者资料库1234ABCD4321DCBA12CN1HC2PH2CN2HC2PH+2-2+1-1+-+XL1XL-4P+2-2+1-1+-+XL2XL-4PD4 OUTPUT(1/1)- 8 -RadioFans.CN 收音机爱 好者资料库1234

24、ABCD4321DCBAC1470uF/35VININGGOUTOUTU1LM317T12R41K8R3150RC2100nF/50 cerC310uF/63AKD11N400412CN42P2.5+12VFANR2NTC 500RR1NTC500RC410UF12CN3CN-2P-180R547K12V12345678PT1D3(1.5A 200V)D45.6V12P1PC25012P2PC25012P3PC250D4 FAN POWER(1/1)- 9 -RadioFans.CN 收音机爱 好者资料库1234ABCD4321DCBAAC SWDJMODFANPOWERCH3CH4FANOU

25、TPCBCON6CON8CON7DIGIMOD LED OUTP1PCN1ACNPUTBREAKER5. WIRING DIAGRAMD1/D3- 10 -RadioFans.CN 收音机爱 好者资料库1234ABCD4321DCBAAC SWDIGIMODDIGIMODFANPOWERCH7CH2CH3CH4FANOUTPCBCON6CON8CON7DIGIMOD LED OUTP1P3CN1CN1CN6DIGIMODLEDOUTCN8ACNPUTBREAKERD2/D4- 11 -RadioFans.CN 收音机爱 好者资料库PCB: DGMMAIN19 BOTTOM LAYER BOTT

26、OM SOLDERPCB: DGMMAIN19 TOP LAYER TOP OVERLAY TOP SOLDER- 12 -6. PCB LAYOUTRadioFans.CN 收音机爱 好者资料库DGMCN TRL17 DGMCN TRL17 VCCDGMCN TRL17 GNDDGMCN TRL17 BOTTO M LAYER BOTTO M SOLDERDGMCN TRL17 TOPM LAYER TOP OVERL AY TOP SOLDER- 13 -RadioFans.CN 收音机爱 好者资料库DGMFILT14 TOP LAYER TOP OVERLAY TOP SOLDERDGM

27、FILT14BOTTOM LAYER BOTTOM SOLDER- 14 -RadioFans.CN 收音机爱 好者资料库PCB:D-3-INPUT BOTTOM LAYER BOTTOM OVERLAY BOTTOM SOLDERPCB:D-3-INPUT TOP LAYER TOP OVERLAY TOP SOLDER- 15 -RadioFans.CN 收音机爱 好者资料库 PCB:DIGIMOD OUTPUT-JK BOTTOM LAYER BOTTOM SOLDER PCB:DIGIMOD OUTPUT-JK TOP OVERLAY- 16 -RadioFans.CN 收音机爱 好者

28、资料库PCB:D-3-FR BOTTOM LAYER BOTTOM OVERLAY BOTTOM SOLDERPCB:D-3-FR Top Layer- 17 -RadioFans.CN 收音机爱 好者资料库PCB:D-4OUT TOP OVERLAYPCB:D-4OUT BOTTOM LAYER BOTTOM SOLDER- 18 -RadioFans.CN 收音机爱 好者资料库PCB:D-3-LED TOP LAYER TOP OVERLAY TOP SOLDER- 19 -RadioFans.CN 收音机爱 好者资料库PCB:D4 FAN POEWR TOP OVERLAYPCB:D4

29、FAN POEWR BOTTOM LAYER BOTTOM SOLDERRadioFans.CN 收音机爱 好者资料库1. Equipments 1. APWIN 1.2 2. Multimeter 3. Frequency converter 4. 4?1000W?load resistance*2PCS 5. 8?1000W?load resistance*2PCS 6. Oscilloscope 7. AC protector 2. TEST PROCEDURE 1. Initialize: 1) The Power switch is in “OFF” status. 2) Conne

30、ct the Power cord to the AC protecting equipment. 3) The Output of the frequency converter is 230V/50Hz; switch all the push switches to “OFF” position. 4) The Output should be attenuated 10 times by the probe and connect to the oscilloscope. 2. Turn on the Power switch, the blue LED blinks frequent

31、ly, The SIG, CLIP, PROT LEDs will turn off one second after turning on the machine. 3. Input 1 KHz/4dBu1dBu RMS signal, adjust the VR and make the Output at 2W, the THD0.5%. ?4. Input 1 KHz/4dBu1dBu RMS signal, adjust the VR and make the Output at 5V2V, the SIG LED lights up. 5. Single Channel Outpu

32、t Test: Set the mode selector switch to the STEREOL position, with 4? loads at the Output, input 1KHZ/4dBuEIAJ signal to CH1, CH2, CH3, CH4, and rotate the corresponding VRs to the maximum, make sure the output of the oscilloscope(vpp)127V5V, it ?occurs slight clipping. Adjust the frequency to 400HZ

33、 /10dBu1dBu, the CLIP LED starts to blink. Figure (1) The Setting of EIAJ Signal 7. TEST PROCEDURE- 21 -D1/D2The Finished Products TestRadioFans.CN 收音机爱 好者资料库6. Short Circuit Protection Test: Input 1 KHz/4dBu1dBu EIAJ signal, adjust the VR and make the Output60V, at the short circuit protection, the

34、 protection PROT will light up or flash, ?the machine will not to be damaged. 7. Oscilloscope Test: set the mode selector switch to the STEREOL position, input 1KHz ?10dBu0.5dBu RMS signal, turn the 30Hz FILTER to the “OFF” and “ON” position, the frequency response of the 30Hz?-3dBu.See the attached

35、 Figure(2) 8. Frequency response Test: Input 1KHz ?10dBu0.5dBu RMS signal, adjust the VR and make the Output at 2W, when the frequency is 20HZ-20KHz, the frequency response?-3dBu. 9. Signal channel test must repeat the procedure 3 to 8. 10. Parallel Connection: Follow up the third step, input 1 KHz

36、0dBu signal from CH1 or CH3, CH2 and CH4 disconnect the input signal, rotate the VRs of the CH2 and CH4 to maximum, CH2 and CH4 have no Output signals. Set the mode selector switch to the PARALLEL position, rotate the VRs of CH2 and CH4, the SIG LED on the panel lights up, and also can see the outpu

37、t waveform of CH2/CH4. (Note: CH1 and CH2 should be paralleled connect only, the same as CH3 and CH4) 11. Bridge Output Test: Set the mode selector switch to the STEREOL position, the positive pole of the load should be connected to the positive pole of CH1s output, and the negative pole of the load

38、 should be connected to the positive pole of CH2s output. Input1KHz 4.5dBu1dBu EIAJ signal from CH1, turn the VR of CH1 to maximum, the VR of CH2 to minimum, with 8? loads at the output, make sure the output of the oscilloscope(vpp)251V5V , it has slight clipping; CH3 and CH4 bridge connected, and ?

39、CH1 and CH2 is the same (Note: CH1 and CH2 should be bridged connection only, the same as CH3 and CH4). 12. Cut out the input signals of all the channels, at that time the standby consumption power: D125W; D250W. 13. After testing, it needs burning for 45 minutes, after no exceptional phenomenon occ

40、ur, then package. - 22 -RadioFans.CN 收音机爱 好者资料库1. Equipments 1. APWIN 1.2 2. Multimeter 3. Frequency converter 4. 4?1000W?load resistance*2PCS 5. 8?1000W?load resistance*2PCS 6. Oscilloscope 7. AC protector 2. Test Procedure 1. Initialize: 1) The Power switch is in “OFF” status. 2) Connect the Power

41、 cord to the AC protecting equipment. 3) The Output of the frequency converter is 230V/50Hz; switch all the push switches to “OFF” position. 4) The Output should be attenuated 10 times by the probe and connect to the oscilloscope. 2. Turn on the Power switch, the blue LED blinks frequently, The SIG,

42、 CLIP, PROT LEDs will turn off one second after turning on the machine. 3. Input 1 KHz/4dBu1dBu RMS signal, adjust the VR and make the Output at 2W, the THD0.5%.?4. Input 1 KHz/4dBu1dBu RMS signal, adjust the VR and make the Output at 5V2V, the SIG LED lights up. 5. Single Channel Output Test: Set t

43、he mode selector switch to the STEREOL position, with 4?loads at the output, input 1KHZ/5dBuEIAJ signal to CH1, CH2, CH3, CH4, and rotate the corresponding VRs to maximum, make sure the output of the oscilloscope(vpp)155?V5V, it occurs slight clipping. Adjust the frequency to 400HZ /10dBu1dBu; the C

44、LIP LED starts to blink. Figure (1) The Setting of the EIAJ signal- 23 -D3/D4The Finished Products Test RadioFans.CN 收音机爱 好者资料库6. Short Circuit Protection Test: Because the short circuit of D3 and D4 will damage the module, so not take the short circuit test at the moment. 7.Oscilloscope Test: Set t

45、he mode selector switch to the STEREOL position, input 1KHz ?10dBu0.5dBu RMS signal, turn the 30Hz FILTER to the “OFF” and “ON” position, the frequency response of the 30Hz?-3dBu. See the attached Figure (2) 8. Frequency response Test: Input 1KHz ?10dBu0.5dBu RMS signal, adjust the VR and make the O

46、utput at 2W, when the frequency range is 20HZ-20KHz, the frequency response?-3dBu. 9. Single Channel Test should repeat the procedure 3 to 8. 10. Parallel Connection: Follow up the third step, input 1 KHz 0dBu signal from CH1 or CH3, CH2 and CH4 disconnect the input signal, rotate the VRs of the CH2

47、 and CH4 to maximum, CH2 and CH4 have no output signals. Set the mode selector switch to the PARALLEL position, rotate the VRs of CH2 and CH4, the SIG LED on the panel lights up, and also can see the output waveform of CH2/CH4.( Note: CH1 and CH2 should be paralleled connect only, the same as CH3 an

48、d CH4) 11. Bridge Output Test: Set the mode selector switch to the STEREOL position, the positive pole of the load should be connected to the positive pole of CH1s output, and the negative pole of the load should be connected to the positive pole of CH2s output. Input 1KHz 6dBu1dBu EIAJ signal from

49、CH1, turn the VR of CH1 to maximum, the VR of CH2 to minimum, with 8?loads at the output, make sure the output of the oscilloscope(vpp)?303V5V, it has slight clipping; CH3 and CH4 bridge connected, and CH1 and CH2 is the same (Note: only CH1 and CH2 should be bridged connection only, the same as CH3

50、?CH4). 12. Cut out the input signals of all the channels, at that time the standby consumption power: D330W; D460W. 13. After testing, it needs burning for 45 minutes, after no exceptional phenomenon occur, then package. - 24 -RadioFans.CN 收音机爱 好者资料库- 25 -Stereo TestWiring Diagram of the Finished Pr