Alto-A500_2-pwr-sm维修电路原理图.pdf

Version 1.0 MODEL: A500.2CONTENT 1. Introduction.12. Specification.23. Schematic Diagram.34. Wiring Diagram.95. Printed Circuit Board.106. Exploded View & Mechanical Parts List.117. Electrical Parts List.131. Introduction 1.5U 1/2 rack, stereo high power amplifier. Fantastic audio quality even with extremely high volume levels. Solid and durable, can be mounted into a cabinet. User-controllable clip limiter. 2480 Watts on 4 ohms (EIAJ) Balanced XLR inputs and 1/4”TRS jack to ensure noiseless long wiring. Neutrik Speak-on connectors for output. Front panel LED indicators for signal, limit and clip. Accurate gain control. Independent thermal overload protection on each channel automatically protects amplifier and speakers. Single channel over-heat protection. - 1 -2. Specification8 ohms per channel(EIAJ)4 ohms per channel(EIAJ)4 ohms per channel(RMS)A500.2 DRAGONFLY20Hz 20KHz0.1%THD, Stereo ModeMODELControlsFRONT: Power switch, CH1 & CH2 LEVEL knobsREAR: CH1 & CH2 LIMITERIndicators (per channel)Power-On: Green LEDClip: Red LEDLimit: Yellow LEDSignal: Green LEDConnectors of each channelInput: COMBO connectorOutput: NEUTRIK Speak-on connectorPower Supply190-240 Vac50Hz / 95-120Vac60HzDimensionNet Weight260W480W245W (at THD 1%)3.85 kg (8.49lb)314W x 208.5D x 66.6H mm / 12.4 x 8.2 x 2.6Input Sensitivity 4 ohms+3dBu - 2 -12345678ABCD87654321DCBAR2182RGND1-1C1156pF/50 cerR510KGND1CH1 GAINC6100pF/50 cerC947uF/25VC5100pF/50 cerC222uF/50VGND1C122uF/50V321U1:1NJM4580L567U1:2NJM4580LGND1R910KGND1R115KR410KR310KR215KLED2RED123CN1CON3GND1CH1-INR610KCLIPSIGLIMITERLED5GRR2230R4123U2VTL5C2LED1YELR19180RVR1A100K1234CN8CON4R2482RGND1-1C1256pF/50 cerR1210KGND1CH2 GAINC7100pF/50 cerC1047uF/25VC8100pF/50 cerC422uF/50VGND1C322uF/50V321U3:1NJM4580L567U3:2NJM4580LGND1R1310KGND1R715KR810KR1110KR1015KLED4RED123CN2CON3GND1CH2-INR1410KCLIPSIGLIMITERLED6GRR2330R4123U4VTL5C2LED3YELR20180RVR2A100K84U3:3NJM4580L84U1:3NJM4580L84U5:3NJM4580L321U5:1NJM4580L567U5:2NJM4580LC1356pF/50 cerC1456pF/50 cerC15104PC16104PC17104PC18104PC19104PC20104PR2510KR2682KR2710KR2982KR2810KR3010KGND1GND112CN4CON212CN5CON2GND1GND1GND115V1-15V1C2110u/25VC2210u/25V123CN6CON312345CN7CON512345CN3CON5GND1-1GND1CH2-OUTCH1-OUTR15270RR17270R - 3 -3. Schematic Diagram1234ABCD4321DCBA123456X1X2X3CN1CN-BAL-COMBI123456X1X2X3CN2CN-BAL-COMBI123CN5CON3123CN6CON31234CN9CON4123SW1:1SW PS-22E85L456PSW1:2SW PS-22E85L123SW3:1SW PS-22E85L456PSW3:2SW PS-22E85LCH1CH2 - 4 -1234ABCD4321DCBA12CN5CON212CN6CON212CN7CON212CN8CON21+11-22+32-4CN1CN-SP1+11-22+32-4CN2CN-SPCH1_SP+CH1_SP-CH2_SP+CH2_SP- - 5 -12345678ABCD87654321DCBAC2010U/16V C2210U/16VC232200U/35VC242200U/35VR29100RR30100RR275K60R265K60C28560PN1-4N1+5SGND12OSC7MODE6N2-9N2+8SGND211FB20SW24REL23ENA21DIACUR22DIATEMP15STABEX18STABINT19ENA216REL214SW213FB217VDD13VDD210VSS11VSS212U6TDA8929C31100N/100VGNDGNDAF INGNDMUTE+25C-25CR28 1K0 C48220N-25CC591NC49220NSW217REL216ENA214VSTAB9POWUP15DIAG3ENA14REL12SW11BOOT212OUT211BOOT16OUT17VSS18VSS210VDD15VDD213U8TDA8927-25+25C4022NC4122NC29560PC32560PC30560PC33560PC1512N7 COGC18470N MKTC1522N7 COGC21470N MKTC44100N/100VC500.1uF/100VC61100N/100VC621N(NPO)C1101N(NPO)C105100U/35V LOW ESRC106100U/35V LOW ESRR395R60 R405R60R415R60R425R60R63100RR64100RR6522R/2WR6647R0L3TWKC-22UHL4TWKC-22UHL10TWKC-22UHL11TWKC-22UH+25-25+25-25GNDGNDGNDGNDGNDGNDCASETE11GND+25C-25CC5100N/100VC6100N/100VC7100N/100VC71100N/100VC72100N/100VC73100N/100VC45100N/100VC46100N/100VC47100N/100VGNDGND+25-25R351K0 C60100N/100VC54220NSW217REL216ENA214VSTAB9POWUP15DIAG3ENA14REL12SW11BOOT212OUT211BOOT16OUT17VSS18VSS210VDD15VDD213U9TDA8927-25+25C4222NC4322NC36560PC38560PC37560PC39560PR435R60R455R60R445R60R465R60R6847R0R7022R/2WC1532N7 COGC26470N MKTC1542N7 COGC27470N MKTC55100N/100VC56100N/100VC63100N/100VC641N(NPO)C1111N(NPO)L5TWKC-22UHL12TWKC-22UHL6TWKC-22UHL13TWKC-22UH+25-25+25-25GNDGNDGNDGNDCASETE13C8100N/100VC9100N/100VC10100N/100V-25-25fblaslarlaeladia1+OUT-OUTR3127KC34220N-25CR156KD8ZD5.6+25CGNDMUTE+25-25L1ferrite beadL2ferrite beadC142200U/35V LOW ESRC152200U/35V LOW ESRTE1C16100N/100VTE2GNDGND-25CGNDGNDC4100N/100VTE3+VCCTE4GNDTE5-VCCC1100N/100VC2100N/100VC310N(NPO)GNDCASEL7WB0610-3.0TL8WB0610-3.0TC11100N/100VC12100N/100VREMOVE 20051213R71390/2WR72390/2WADD 20051213ADD 20051213REMOVE 20051213REMOVE 20051213Modify R65 22R/2W 20051213Modify R70 22R/2W 20051213 - 6 -12345678ABCD87654321DCBAIC47815IC27915C16100NC14100NC25100NC12470NC13470NC9180U/25VC30100U/25VC26100U/25VC212200U/25VC202200U/25VC242200U/25VC232200U/25VC222200U/25VC192200U/25VL51uH/12AL61uH/12AD1KBU8MC7470U/200VC8470U/200VC36470U/200VC37470U/200VC22N2/400VC32N2/400VC382N2/400VC392N2/400VL21uH/12AL31uH/12AR13150KR14150KC1100N/275VR2NTC_B57237VAR1275VR1845KR4845KR3150K12345678910J1CON101234J2CON4Q2BC640R86R80D7BZT03-C16D2BYV27-150D8BYV27-150C5100NIC1L7812CVC4330U/25VC6100U/25VP1PP3PP2PA2A1GQ1BT139M2STW9NK90ZD12A30CPQ150D12B30CPQ150D9B30CPQ150D9A30CPQ1503412T1PE671001324L1TL25-050-182R1175R0R12150RR6270RR5270RR102K2D41N4148D5GR24L4ALF20_13EED911L4BLF20_13EED1210L4CLF20_13EED1315L4DLF20_13EED161417L4ELF20_13EED2345781012131415171T2TF20_13EED12K1CON212K4CON2V27NYV27NV27NYV27NGNDGNDV15AV15NV27NFBV27NFBC10470P/500VC11470P/500VC41100NR910R/30WGND12345678K2CON812345678K3CON8GNDV27NV27NFV27NFV15NV15AGNDV27NF12S1CON2R151R8R1751KR1851K12CN1CON2AC_INPUTAC_SELPWR_LEDPMPWRCTL_BOARDGND123CN4CON3V27NV27NFR2012R/10WR2112R/10WC47180U/25VC48100N - 7 -1234ABCD4321DCBAR168R0R247R0R31KR41KR568R0R619K6R7150RR810KR927KR1028KR1110KR122K2R1324KR14180RR154R30R1610R7R17180RR1875R0R191KR201KR2219K6COL1COMP2VCC3EA+4REF5EA-6GND7ISET8U2UC39432BD1234J2CON4C468NC547PC627NC33N3C18470P_NPOC1627NC17470NC1568NC1427NVCC2VCC2VCC2VCC1COUNT1ILIM2VCC3OUT4PGND5VFWD6SLOPE7FEEDBK8ISET9RAMP10FREQ11VREF12GND13SOFTST14U1UCC3571DC7N/CC8270P_NPOVR120KC1027NC11470P_NPOC210U/50VC122U/35VD11N414BSD2TMBYV1 -40D3TMBYV10-40D4BAS85C1327NC12470P_NPO4125U3OPTO CNY17-3TVFWDFFEDBKCURRCURR/10OUT12345678910J1CON10OUTCURRCURR/10VFWDFFEDBKVCC1R23100K040515 modifyC7-N/CC8-270P_NPOR10-28KR11-10K050111 modifyR15-4R30 - 8 - - 9 -4. Wiring Diagram - 10 - - 11 -6. Exploded View & Mechanical Parts ListPart List Mechanical Parts List No. Item NO. Item Description Specification pcs1 MJ00476 cushion A500.2 top_V1.0 1 2 MC00476 top cover A500.2 bottom_V1.0 1 3 MI02593 front panel A1000.4 right_V1.0 1 4 MI02595 front panel A1000.4 left_V1.0 1 5 MB03849 rear chassis 208.5*64.8*308 1 6 MA00813 panel 205.5*63.6*12 1 7 MC00675 top cover A500.2 DRAGONFLY_V1.0 1 8 MI02588 barrier A500.2 210*90*31.8_V1.0 1 9 NI03389 net A500.2 96*61.6*5t_V1.0 1 10 MG00578 Ni screw M3*10*0.5PH_V1.0 4 11 HK04930 K-PC board P-A2FP-DIP 1 12 MG00251 copper pillar M3*17.5*0.5PH 4 13 MG00041 black plated screw-pill M3*6 4 14 HI00031 power switch R415KKETOF 1 15 HC00423 AC socket (FUSE socket enclosed) 6A power supply filter with EMI 1 16 MG00042 black plated screw-pan head M3*10 6 17 MG00025 black plated screw-pan head M3*6 26 18 MG00061 black plated screw-pill M3*10 4 19 MG00162 Ni screw-pill M3*8 14 20 MF00037 spring washer 3*5*1t 25 21 MF00014 shake proof washer 3*6.5*0.5t 6 22 NI00498 self-adhesive cushion 12.7*7*6mm(SF-005) 4 23 MJ00942 fixed bracket CS12/600 2 24 MG00247 copper pillar M3*10*0.5PH 5 25 HK04933 K-PC board P-A2OUT 1 26 HK04929 K-PC board P-A2IN 1 27 HK04669 K-PC board P-D300W-DIP(A500.2) 2 28 HK04932 K-PC board P-A2LED 1 29 HK04928 K-PC board P-PM8PWR-DIP(A500.2) 1 30 ME00015 nut 3mm 13 31 MK00081 spring piece-black plated 0.4*12*13*28.5mm 4 32 MF00030 Ni washer 3*8*0.8t 16 33 MG00163 Ni screw M3*8 8 34 MG00281 Ni screw M3*6 2 35 MK00080 stator-black plated 0.4*10*12*35mm 4 - 12 -No. Part No. Description Specification Remark 1 SA00052 L.E.D 3 round(green)long foot 26 2 NI00498 self-adhere foot cushion 12.7*7*6mm(SF-005) 3 NI00360 knob 15*15mm 4 NI00262 sleeve 5*25mm 5 NI00258 sleeve 5*1000mm 6 NI00218 cable tie ALT-102SB 7 NI00222 sleeve 1.5*30mm 8 NI00221 sleeve 1.5*1000mm 9 NF02069 instruction A500.2 ALTO_V1.4 10 NH00149 paper 889*640mm 11 NI03389 net A500.2 96*61.6*5t_V1.0 12 NI01863 key-RS 5.5*W10*7.5 13 NI01862 key 5.5*5.5*14.5_V1.1 14 NE11347 label ALTO PI 15 NH00334 cone paper 0.040*1m 16 NF00061 assurance card ALTO 17 NB03378 carton A500.2 ALTO_V1.0 18 NB03372 cushion A500.2_V1.0 19 NB03381 gift carton A500.2 ALTO_V1.0 20 ND00148 silicone sleeve 12*90mm 21 ND00026 silicone sleeve 100*20 22 ND00150 silicone sleeve 12*150mm 23 ND00026 silicone sleeve 100*20 24 MI02593 front board A1000.4 right_V1.0 25 MI02594 front board A1000.4 right_V1.0 26 MI02959 front board 6*40*1M(1M/0.59kg) A500.2_V1.0 27 MI02588 barrier A500.2 210*90*31.8_V1.4 28 MJ00057 AL plate-RS 3.0t*2000*1000mm 16.32kg 29 MI02603 front board A500.2 DRAGONFLY left ALTO_V1.0 30 MI02595 front board A1000.4 left 31 MI02596 front board A1000.4 left_V1.0 32 MI02959 front board 6*40*1M(1M/0.59kg) A500.2_V1.0 33 NA00279 clip-chain bag 0.04t*100*150mm_V1.0 34 NA00123 PE bag 0.04t*580*300mm 35 NA00137 clip-chain bag 5*7 36 MJ00476 cushion A500.2 up_V1.1 37 MJ00477 cushion A500.2 up_V1.2 38 MJ00057 AL plate-RS 3.0t*2000*1000mm 16.32kg 39 MJ00478 cushion A500.2 down_V1.1 40 MJ00479 cushion A500.2 down_V1.2 41 MJ00057 AL plate-RS 3.0t*2000*1000mm 16.32kg 42 MG00025 screw M3*6 - 13 -7. Electrical Parts ListNo. Part No. Description Specification Remark 43 MG00027 screw M3*12 44 MG00281 screw M3*6 45 MG00041 screw M3*6 46 MG00031 screw M4*12 47 MG00061 screw M3*10 48 MG00161 screw M3*6 49 NE02717 label MADE IN CHINA 50 NH00038 paper 0.115*1M 51 NI00028 membrane 0.110*1M 52 MG00162 screw M3*8 53 MF00037 washer 3.2*5.5*1t 54 MF00038 washer 4*7*1t 55 MF00048 washer 4*8*0.5t 56 ME00016 color nut 4m/m 57 MD00608 protective cover 32*32mm 58 MF00014 washer 3*6.5*0.5t 59 MC00675 top cover A500.2 DRAGONFLY_V1.3 60 MC00671 top cover A500.2 61 MC00670 top cover 1.2t*208.5*308*1.2 A500.2_V1.5 62 MJ00059 single light board 1.2*2135*1220 24.54kg 63 AE00055 solvent solvent 64 AE00060 paint 4534 65 MB03849 chassis A500.2 DRAGONFLY _V1.6 66 MB03843 chassis A500.2 67 MB03844 chassis 1.2t*208.5*64.8*308 A500.2_V1.5 68 MJ00059 single light board 1.2*2135*1220 24.54kg 69 ME00038 iron pillar 6.35*M3*8.4_V1.3 70 ME00001 screw pillar M4*10*0.7PH 71 AE00055 solvent solvent 72 AE00060 paint 4534 73 MH02000 magnet VDGUF-90B 74 MG00578 screw M3*10*0.5PH_V1.0 75 MG00251 copper pillar M3*17.5*0.5PHsingle,length23.5 76 MG00243 copper pillar M3*5*0.5PH 77 MA00813 panel A500.2 DRAGONFLY_V1.1 78 MA00757 panel A500.2 79 MA00760 panel 1.0t*205.5*63.6*12 A500.2_V1.6 80 MJ00058 single light board 1*2135*1220 20.45kg 81 ME00184 iron pillar A200.2 M3*11.2*0.5PH*5.8_V1.0 82 AE00055 solvent solvent 83 AE00067 paint 2514 84 HK04932 PC board P-A2LED - 14 -No. Part No. Description Specification Remark 85 HB01376 PCB A2-LED(3*3)_VER040917 86 RA00168 fixed resistor 1/4W 30 M type R22,R23 87 RA00181 fixed resistor 1/4W 82 M type R21,R24 88 RA00191 fixed resistor 1/4W 180 M type R19,R20 89 RA00196 fixed resistor 1/4W 270 M type R15,R17 90 SA00052 L.E.D 3 round(green)long foot 26 LED5,LED6 91 SA00053 L.E.D 3 round(red)long foot 26mm LED2,LED4 92 SA00054 L.E.D 3m/m round(yellow)long foot 26 LED1,LED3 93 HC00067 connector(male) 4P 2.5mm 90 CN8 94 HC00069 connector(male) 5P 2.5mm 90 CN7 95 NI01781 LED spacer support LEDS-8 8mm VR12 96 AC00179 tin without lead M705E Sn 3Ag-0.5Cu VR13 97 HK04930 PC board P-A2FP-DIP VR10 98 CB00143 electrolytic capacitor 10uF/63V 5*11mm C21,C22 99 CB00029 electrolytic capacitor 22uF/35V 5*11mm C1,C2,C3,C4 100 CB00039 electrolytic capacitor 47uF/25V 5*11mm C9,C10 101 HC00076 connector(male) 2P 2.5mm 180 CN4,CN5 102 HC00077 connector(male) 3P 2.5mm 180 CN1,CN2,CN6 103 HC00079 connector(male) 5P 2.5mm 180 CN3 104 RC00209 potentiometer A10K RV110-40E1-225A-A14 VR1,VR2 105 AC00179 tin without lead M705E Sn 3Ag-0.5Cu 106 HK02231 Photodiode P-photosensitive resistance+5LLED U2,U4 107 RH00020 photosensitive resistance VT90N1 108 SA00201 L.E.D 5 red(LI3330/A) R223 109 NI02779 sleeve 9*30mm 110 NI00274 sleeve 9*1000mm R203,R204,R218,R220,R222 111 HK04931 PC board P-A2FP-SMD R217 112 HB01379 PCB A2-FP(3*3)_VER050512 R216 113 RD00101 SMD fixed resistor 1/10W 10K 5% 0603 R3,R4,R5,R6,R8,R9,R11,R12,R13,R14,R25,R27,R28,R30 114 RD00103 SMD fixed resistor 1/10W 15K 5% 0603 R1,R2,R7,R10 115 RD00115 SMD fixed resistor 1/10W 82K 5% 0603 R26,R29 116 CI00056 SMD ceramic capacitor 0603 56PF/50V NPO 5% C11,C12,C13,C14 117 CI00059 SMD ceramic capacitor 0603 100PF/50V NPO 5% C5,C6,C7,C8,C23,C24,C25,C26 118 CI00071 SMD ceramic capacitor 0603 0.01uF/50V X7R 10% C27 119 CI00075 SMD ceramic capacitor 0603 0.1uF/50V Y5V +80,-20% C15,C16,C17,C18,C19,C20 120 SG00122 SMD integrated circuit NJM4580M-TE3 U1,U3,U5 121 AE00449 solder material without lead 9308/Sn Ag Cu R154,R155 122 HI00289 thermal switch NO55 U-A 123 HJ00006 dessicant 30g 124 HE00043 fan DC12V/0.12A 40*40*15mm 330mm JST2P R49,R50,R57,R58 125 HI00031 power switch-RS R415KKETOF R136,R137 - 15 -No. Part No. Description Specification Remark 126 HC00423 FUSE holder 4A (EMI-power filter) R134,R135 127 HD00018 glass tube fuse 6.3A 250V 5.2*20mm CCEE/CSA/S/UL/VDE R19,R20,R21,R22,R61,R62,R63,R64,R65,R66,R67,R68,R69,R70 128 HA01394 row-wire connector wiring 3P-3P 120 129 HA01388 row-wire connector wiring 2P 100 130 HA00861 power cord Europe 3P LT-312+LT-501 R25,R26,R33,R34,R35,R36,R37,R38,R39,R40,R41,R42,R205,R206,R207,R209 131 HA00370 wire 80mm black L5R5 R79,R80 132 HA03501 single terminal wiring 300mm UL1015 18AWG red R77,R78 133 HA03503 wire 2P-2P 300mm UL1185 26AWG R152,R153 134 HA03495 wire 4P-4P 500mm UL1007 28AWG R131 135 HA03497 wire 5P-5P 50mm UL1007 28AWG R1,R2,R3,R4,R5,R6,R7,R8,R9,R10 136 HA03724 wire 90mm UL1015 18AWG R23,R24,R27,R28 137 HA03505 wire 2P-2P 400mm UL1185 26AWG R213 138 HA03498 wire 8P 280mm UL1007 18AWG R129,R130 139 HA02911 wire 3P-3P 200mm UL2547 28AWG brown C36,C37,C38,C39,C40,C41 140 HA02522 wire 2P 120mm UL1007 28AWG red black C69,C70 141 HA02763 wire 8P 200mm UL1007 18AWG C76,C77 142 AD00012 twin adhesive 90*120mm_V1.0 C1,C2,C3,C4 143 HA04008 connecter 2.5 3P-3P 500mm UL2547 28AWG blue C32,C33,C34,C35 144 MH02001 magnet VDT17.5X9.5X12.7 C48,C49,C50,C63 145 HA03506 wire 3P-3P 500mm UL2547 28AWG C6,C7,C11,C46 146 NI03787 mount TH-2 147 NE13784 label A500.2_V1.0 C24,C25,C26,C27,C28,C29,C30,C31 148 NI00014 membrane 0.035*1M 149 NH00012 bond paper 0.04*1M 150 HK04669 PC board P-D300W-DIP(A500.2) IC7,IC8,IC15 151 CB00021 electrolytic capacitor 10uF/16V 4*5mm C20,C22 152 CB00162 electrolytic capacitor 100uF/35V 105C TL 8*11mm C105,C106 153 CB00164 electrolytic capacitor 2200uF/35V 105C TL 16*32mm C14,C15,C23,C24 154 CF00042 metal-film capacitor MSC 0.47uF/63V 5% CASE02 C18,C21,C26,C27 155 CN00045 fixed inductance TWLC-220K L3,L4,L5,L6,L10,L11,L12,L13 156 CN00069 inductance-EMI SUPPRESSOR TB36-13-850485 L1,L2 157 HC00324 connect terminal 6.5m/m (PC250) TE11,TE13 158 ME00015 color nut 3m/m 159 MF00132 MIC jack 3*8*0.8t_v1.0 160 MF00030 washer 3.5*8*0.8t_V1.0 161 MJ00067 single light board 0.8t*2135*1220mm 18.69kg J9,J10,J11,J12,J19,J20,J21,J22,J33,J34,J35,J36,J52,J53,J78,J80,J81,J84,J85,J