Alto-A500_2-pwr-sm 电路图 维修手册.pdf

《Alto-A500_2-pwr-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Alto-A500_2-pwr-sm 电路图 维修手册.pdf（22页珍藏版）》请在收音机爱好者资料库上搜索。

1、 Version 1.0 MODEL: A500.2 RadioFans.CN 收音机爱 好者资料库 CONTENT 1. Introduction.1 2. Specification.2 3. Schematic Diagram.3 4. Wiring Diagram.9 5. Printed Circuit Board.10 6. Exploded View & Mechanical Parts List.11 7. Electrical Parts List.13 RadioFans.CN 收音机爱 好者资料库 1. Introduction 1.5U 1/2 rack, stereo

2、 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 o

3、utput. 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 - RadioFans.CN 收音机爱 好者资料库 2. Specification 8 ohms per channel(EIAJ) 4 o

4、hms per channel(EIAJ) 4 ohms per channel(RMS) A500.2 DRAGONFLY 20Hz 20KHz0.1%THD, Stereo Mode MODEL ControlsFRONT: Power switch, CH1 & CH2 LEVEL knobs REAR: CH1 & CH2 LIMITER Indicators (per channel)Power-On: Green LED Clip: Red LED Limit: Yellow LED Signal: Green LED Connectors of each channelInput

5、: COMBO connector Output: NEUTRIK Speak-on connector Power Supply190-240 Vac50Hz / 95-120Vac60Hz Dimension Net Weight 260W 480W 245W (at THD 1%) 3.85 kg (8.49lb) 314W x 208.5D x 66.6H mm / 12.4 x 8.2 x 2.6 Input Sensitivity 4 ohms+3dBu - 2 - 12345678 A B C D 87654321 D C B A R21 82R GND1-1 C11 56pF/

6、50 cer R5 10K GND1 CH1 GAIN C6 100pF/50 cer C9 47uF/25V C5 100pF/50 cer C2 22uF/50V GND1 C1 22uF/50V 3 2 1 U1:1 NJM4580L 5 6 7 U1:2 NJM4580L GND1 R9 10K GND1 R1 15K R4 10K R3 10K R2 15K LED2 RED 1 2 3 CN1 CON3 GND1 CH1-IN R6 10K CLIP SIG LIMITER LED5 GR R22 30R 41 23 U2 VTL5C2 LED1 YEL R19 180R VR1

7、A100K 1 2 3 4 CN8 CON4 R24 82R GND1-1 C12 56pF/50 cer R12 10K GND1 CH2 GAIN C7 100pF/50 cer C10 47uF/25V C8 100pF/50 cer C4 22uF/50V GND1 C3 22uF/50V 3 2 1 U3:1 NJM4580L 5 6 7 U3:2 NJM4580L GND1 R13 10K GND1 R7 15K R8 10K R11 10K R10 15K LED4 RED 1 2 3 CN2 CON3 GND1 CH2-IN R14 10K CLIP SIG LIMITER L

8、ED6 GR R23 30R 41 23 U4 VTL5C2 LED3 YEL R20 180R VR2 A100K 84 U3:3 NJM4580L 84 U1:3 NJM4580L 84 U5:3 NJM4580L 3 2 1 U5:1 NJM4580L 5 6 7 U5:2 NJM4580L C13 56pF/50 cer C14 56pF/50 cer C15 104P C16 104P C17 104P C18 104P C19 104P C20 104P R25 10K R26 82K R27 10K R29 82K R28 10K R30 10K GND1 GND1 1 2 CN

9、4 CON2 1 2 CN5 CON2 GND1 GND1 GND1 15V1 -15V1 C21 10u/25V C22 10u/25V 1 2 3 CN6 CON3 1 2 3 4 5 CN7 CON5 1 2 3 4 5 CN3 CON5 GND1-1GND1 CH2-OUT CH1-OUT R15 270R R17 270R - 3 - 3. Schematic Diagram 1234 A B C D 4321 D C B A 1 2 3 4 5 6 X1 X2 X3 CN1 CN-BAL-COMBI 1 2 3 4 5 6 X1 X2 X3 CN2 CN-BAL-COMBI 1 2

10、 3 CN5 CON3 1 2 3 CN6 CON3 1 2 3 4 CN9 CON4 1 2 3 SW1:1 SW PS-22E85L 4 5 6 P SW1:2 SW PS-22E85L 1 2 3 SW3:1 SW PS-22E85L 4 5 6 P SW3:2 SW PS-22E85L CH1 CH2 - 4 - 1234 A B C D 4321 D C B A 1 2 CN5 CON2 1 2 CN6 CON2 1 2 CN7 CON2 1 2 CN8 CON2 1+ 1 1- 2 2+ 3 2- 4 CN1 CN-SP 1+ 1 1- 2 2+ 3 2- 4 CN2 CN-SP

11、CH1_SP+ CH1_SP- CH2_SP+ CH2_SP- - 5 - 12345678 A B C D 87654321 D C B A C20 10U/16V C22 10U/16V C23 2200U/35V C24 2200U/35V R29 100R R30 100R R27 5K60 R26 5K60 C28 560P N1- 4 N1+ 5 SGND1 2 OSC 7 MODE 6 N2- 9 N2+ 8 SGND2 11 FB 20 SW 24 REL 23 ENA 21 DIACUR 22 DIATEMP 15 STABEX 18 STABINT 19 ENA2 16 R

12、EL2 14 SW2 13 FB2 17 VDD1 3 VDD2 10 VSS1 1 VSS2 12 U6 TDA8929 C31 100N/100V GND GND AF IN GND MUTE +25C -25C R28 1K0 C48 220N -25C C59 1N C49 220N SW2 17 REL2 16 ENA2 14 VSTAB 9 POWUP 15 DIAG 3 ENA1 4 REL1 2 SW1 1 BOOT2 12 OUT2 11 BOOT1 6 OUT1 7 VSS1 8 VSS2 10 VDD1 5 VDD2 13 U8 TDA8927 -25 +25 C40 2

13、2N C41 22N C29 560P C32 560P C30 560P C33 560P C151 2N7 COG C18 470N MKT C152 2N7 COG C21 470N MKT C44 100N/100V C50 0.1uF/100V C61 100N/100V C62 1N(NPO) C110 1N(NPO) C105 100U/35V LOW ESR C106 100U/35V LOW ESR R39 5R60 R40 5R60 R41 5R60 R42 5R60 R63 100R R64 100R R65 22R/2W R66 47R0 L3 TWKC-22UH L4

14、 TWKC-22UH L10 TWKC-22UH L11 TWKC-22UH +25-25 +25-25 GNDGND GNDGND GND GNDCASE TE11 GND +25C -25C C5 100N/100V C6 100N/100V C7 100N/100V C71 100N/100V C72 100N/100V C73 100N/100V C45 100N/100V C46 100N/100V C47 100N/100V GND GND +25 -25 R35 1K0 C60 100N/100V C54 220N SW2 17 REL2 16 ENA2 14 VSTAB 9 P

15、OWUP 15 DIAG 3 ENA1 4 REL1 2 SW1 1 BOOT2 12 OUT2 11 BOOT1 6 OUT1 7 VSS1 8 VSS2 10 VDD1 5 VDD2 13 U9 TDA8927 -25 +25 C42 22N C43 22N C36 560P C38 560P C37 560P C39 560P R43 5R60 R45 5R60 R44 5R60 R46 5R60 R68 47R0 R70 22R/2W C153 2N7 COG C26 470N MKT C154 2N7 COG C27 470N MKT C55 100N/100V C56 100N/1

16、00V C63 100N/100V C64 1N(NPO) C111 1N(NPO) L5 TWKC-22UH L12 TWKC-22UH L6 TWKC-22UH L13 TWKC-22UH +25-25 +25-25 GND GNDGNDGNDCASE TE13 C8 100N/100V C9 100N/100V C10 100N/100V -25 -25 fbla sla rla ela dia1 +OUT -OUT R31 27K C34 220N -25C R1 56K D8 ZD5.6 +25C GND MUTE +25 -25 L1 ferrite bead L2 ferrite

17、 bead C14 2200U/35V LOW ESR C15 2200U/35V LOW ESR TE1 C16 100N/100V TE2 GND GND -25C GND GND C4 100N/100V TE3 +VCC TE4 GND TE5 -VCC C1 100N/100V C2 100N/100V C3 10N(NPO)GNDCASE L7 WB0610-3.0T L8 WB0610-3.0T C11 100N/100V C12 100N/100V REMOVE 20051213 R71 390/2W R72 390/2W ADD 20051213 ADD 20051213 R

18、EMOVE 20051213 REMOVE 20051213 Modify R65 22R/2W 20051213 Modify R70 22R/2W 20051213 - 6 - 12345678 A B C D 87654321 D C B A IC4 7815 IC2 7915 C16 100N C14 100N C25 100N C12 470N C13 470N C9 180U/25V C30 100U/25V C26 100U/25V C21 2200U/25V C20 2200U/25V C24 2200U/25V C23 2200U/25V C22 2200U/25V C19

19、2200U/25V L5 1uH/12A L6 1uH/12A D1 KBU8M C7 470U/200V C8 470U/200V C36 470U/200V C37 470U/200V C2 2N2/400V C3 2N2/400V C38 2N2/400V C39 2N2/400V L2 1uH/12A L3 1uH/12A R13 150K R14 150K C1 100N/275V R2 NTC_B57237 VAR1 275V R1 845K R4 845K R3 150K 1 2 3 4 5 6 7 8 9 10 J1 CON10 1 2 3 4 J2 CON4 Q2 BC640

20、 R8 6R80 D7 BZT03-C16 D2 BYV27-150 D8 BYV27-150 C5 100N IC1 L7812CV C4 330U/25V C6 100U/25V P1 P P3 P P2 P A2A1 G Q1 BT139 M2 STW9NK90Z D12A 30CPQ150 D12B 30CPQ150 D9B 30CPQ150 D9A 30CPQ150 3 4 1 2 T1 PE67100 1 3 2 4 L1 TL25-050-182 R11 75R0 R12 150R R6 270R R5 270R R10 2K2 D4 1N4148 D5 GR 24 L4A LF

21、20_13EED 911 L4B LF20_13EED 1210 L4C LF20_13EED 1315 L4D LF20_13EED 1614 17 L4E LF20_13EED 2 3 4 5 7 8 10 12 13 14 15 17 1 T2 TF20_13EED 1 2 K1 CON2 1 2 K4 CON2 V27NY V27N V27NY V27N GND GND V15A V15N V27NFB V27NFB C10 470P/500V C11 470P/500V C41 100N R9 10R/30W GND 1 2 3 4 5 6 7 8 K2 CON8 1 2 3 4 5

22、 6 7 8 K3 CON8 GND V27N V27NF V27NF V15N V15A GND V27NF 1 2 S1 CON2 R15 1R8 R17 51K R18 51K 1 2 CN1 CON2 AC_INPUT AC_SEL PWR_LED PMPWRCTL_BOARD GND 1 2 3 CN4 CON3 V27N V27NF R20 12R/10W R21 12R/10W C47 180U/25V C48 100N - 7 - 1234 A B C D 4321 D C B A R1 68R0 R2 47R0 R3 1K R4 1K R5 68R0 R6 19K6 R7 1

23、50R R8 10K R9 27K R10 28K R11 10K R12 2K2 R13 24K R14 180R R15 4R30 R16 10R7 R17 180R R18 75R0 R19 1K R20 1K R22 19K6 COL 1 COMP 2 VCC 3 EA+ 4 REF 5 EA- 6 GND 7 ISET 8 U2 UC39432BD 1 2 3 4 J2 CON4 C4 68N C5 47P C6 27N C3 3N3 C18 470P_NPO C16 27N C17 470N C15 68N C14 27N VCC2 VCC2 VCC2 VCC1 COUNT 1 I

24、LIM 2 VCC 3 OUT 4 PGND 5 VFWD 6 SLOPE 7 FEEDBK 8 ISET 9 RAMP 10 FREQ 11 VREF 12 GND 13 SOFTST 14 U1 UCC3571D C7 N/C C8 270P_NPO VR1 20K C10 27N C11 470P_NPO C2 10U/50V C1 22U/35V D1 1N414BS D2 TMBYV1 -40 D3 TMBYV10-40 D4 BAS85 C13 27N C12 470P_NPO 4 1 2 5 U3 OPTO CNY17-3T VFWD FFEDBK CURR CURR/10 OU

25、T 1 2 3 4 5 6 7 8 9 10 J1 CON10 OUT CURR CURR/10 VFWD FFEDBK VCC1 R23 100K 040515 modify C7-N/C C8-270P_NPO R10-28K R11-10K 050111 modify R15-4R30 - 8 - - 9 - 4. Wiring Diagram - 10 - - 11 - 6. Exploded View & Mechanical Parts List Part List Mechanical Parts List No. Item NO. Item Description Specif

26、ication pcs 1 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

27、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

28、 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 NI00

29、498 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

30、.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(gree

31、n)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 NI033

32、89 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 sil

33、icone 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

34、_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

35、 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 sc

36、rew M3*6 - 13 - 7. Electrical Parts List No. 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

37、.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*2

38、08.5*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

39、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

40、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 S

41、pecification 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 L

42、ED5,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

43、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

44、.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

45、 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,R1 4,R25,R27,R28,R30 114 RD00103 SMD fixed

46、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/50

47、V 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 R415K