Alto A200.2 DRAGONFLY Service Manual Download Page 3

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1. Introduction

1U 1/2 rack, stereo high power amplifier.

Fantastic audio quality even with extremely high volume levels.

Solid and durable, and can be mounted into a cabinet.

User-controllable clip limiter.

2×120Watts on 4Ohms (EIAJ)

Balanced XLR inputs and 1/4”TRS jack to ensure noiseless long wiring.

1/4” TRS jack 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.

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Summary of Contents for A200.2 DRAGONFLY

Page 1: ...www altoproaudio com Version 1 0 MODEL A200 2 ...

Page 2: ...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 14 7 Electrical Parts List 17 ...

Page 3: ...ser controllable clip limiter 2 120Watts on 4Ohms EIAJ Balanced XLR inputs and 1 4 TRS jack to ensure noiseless long wiring 1 4 TRS jack 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 ...

Page 4: ...VEL knobs REAR CH1 CH2 LIMITER Indicators per channel Power On Green LED Clip Red LED Limit Yellow LED Signal Green LED Connectors of each channel Input COMBO connector Output 1 4 TRS connector Power Supply 190 240 Vac 50Hz 95 120Vac 60Hz Dimension Net Weight 120W 65W 3 6Kg 310 208 5 44mm Input Sensitivity 4 ohms 3dBu 4 ohms per channel RMS 60W at THD 1 2 ...

Page 5: ...3 Schematic Diagram 3 ...

Page 6: ... 4 ...

Page 7: ...1 D C B A R21 82R GND1 1 LED2 RED CLIP SIG LIMITER LED5 GR R22 30R LED1 YEL R19 180R 1 2 3 4 CN11 CON4 R24 82R GND1 1 LED4 RED CLIP SIG LIMITER LED6 GR R23 30R LED3 YEL R20 180R 1 2 3 4 5 CN10 CON5 GND1 1 R15 270R R17 270R 5 ...

Page 8: ... 6 ...

Page 9: ...C16 22UF 50V R3 15K R4 15K 1 2 3 U2A 4558 5 6 7 U2B 4558 R7 10K C20 100P 50V C22 47UF 25V 1 2 3 CN6 CH2 GAIN R6 10K R13 17 4K C24 56PF 50V R12 10K U5 VTL5C2 R16 10K 5 6 7 U3B 4558 R19 82K C25 56PF 50V R18 10K CH2 OUT C18 100P 50V R8 10K C19 100P 50 R9 10K 1 2 3 J7 L3 WB0610 3 0T L5 WB0610 3 0T L4 WB0610 3 0T CH1 OUT CH2 OUT 1 2 3 CN1 POWER L1 220UH L2 220UH C1 470UF 25V C2 470UF 25V C3 104 C4 104 ...

Page 10: ... MKT C152 2N7 COG C21 470N MKT C50 0 01uF C61 470N C62 1N NPO C110 10N NPO C105 100U 35V LOW ESR C106 100U 35V LOW ESR R39 5R60 R40 5R60 R41 5R60 R42 5R60 R63 100R R64 100R R65 47R 1 4W R66 47R 1 4W L3 TWKC 22UH L4 TWKC 22UH L10 TWKC 22UH L11 TWKC 22UH 25 25 25 25 GND GND GND GND GND GND CASE TE6 GND 25C 25C C5 470N C6 0 1uF 100V C7 470N C45 220N C46 NOT USE C47 220N GND GND 25 25 C60 470N C55 0 1...

Page 11: ...4 Wiring Diagram 9 ...

Page 12: ...5 Printed Circuit Board 10 PCB A200 2 PRE BOTTOM LAYER BOTTOM OVERLAY BOTTOM SOLDER PCB A200 2 PRE TOP LAYER TOP OVERLAY TOP SOLDER ...

Page 13: ... 1 1 PCB A2 200IO BOTTOM LAYER BOTTOM OVERLAY BOTTOM SOLDER PCB A2 200IO TOP LAYER TOP OVERLAY TOP SOLDER 11 ...

Page 14: ...PCB PSM 100W BOTTOM LAYER BOTTOM OVERLAY BOTTOM SOLDER PCB PSM 100W TOP LAYER TOP OVERLAY TOP SOLDER 12 ...

Page 15: ... 13 PCB D100W 2 BOTTOM LAVER BOTTOM LVERLAY BOTTOM SOLDER PCB D100W 2 TOP LAVER TOP LVERLAY TOP SOLDER ...

Page 16: ...6 Exploded View Mechanical Parts List 14 ...

Page 17: ...φ9 6 φ13 0 5t 2 15 ME00060 MIC socket nut HC00125 accessory Heaxgon JY 6351G 02 250 2 16 MG00025 black plated screw pan head M3 6 14 17 MG00281 Ni screw M3 6 2 18 MG00041 black plated screw pill M3 6 13 19 MG00042 black plated screw pan head M3 10 2 20 MG00061 black plated pill M3 10 4 21 MG00162 Ni screw pill M3 8 3 22 MF00037 spring washer Zn plated φ3 2 φ5 5 1t 8 23 MF00038 spring washer Zn pla...

Page 18: ...RF 2004 C 4 8 1 35 HA00861 power cord RS LT 312 0 75 3C H05VV F 6FT LT 501 1 36 HK04126 K PC board P D100W 2 DIP A200 2 1 37 HK06475 K PC board P A200 2 PRE 1 38 HK06369 K PC board P PSM 100W DIP 1 39 HK04985 K PC board P A2 200IO 1 16 ...

Page 19: ...02604 front board A200 2 DRAGONFLY left ALTO_V1 0 20 MI02577 front board A200 2 left 21 MI02576 front board A200 2 left_V1 1 22 MI03117 front board 6T 28 1M 5 1M 0 38KG _V 1 0 23 MI02578 front board A200 2 right_V1 0 24 MI02579 front board A200 2 right_V1 1 25 MI03117 front board 6T 28 1M 5 1M 0 38KG _V 1 0 26 MJ00471 cushion A200 2 up_V1 0 27 MJ00472 cushion A200 2 up_V1 0 28 MJ00057 AL plate RS ...

Page 20: ...3495 wire 4P 4P 500mm UL1007 28AWG 59 MI02581 heat sink A200 2 89 5 66 30 6_V1 0 60 MJ00055 AL plate 2 2000 1000 10 88kg 61 MF00037 washer φ3 2 φ5 5 1t 62 MG00261 copper pillar M3 8 5 0 5PH 63 MF00014 washer φ3 φ6 5 0 5t 64 MG00041 screw M3 6 65 MG00025 screw M3 6 66 MG00281 screw M3 6 67 MG00578 screw M3 10 0 5PH_V1 0 68 MG00162 screw M3 8 69 NI00498 self adhere foot cushion 12 7 7 6mm SF 005 70 ...

Page 21: ...tor 100uF 35V 105 C TL φ8 11mm C105 C106 105 CB00164 electrolytic capacitor 2200uF 35V 105 C TL φ16 32mm C23 C24 106 CF00042 metal film capacitor MSC 0 47uF 63V 5 CASE02 C18 C21 107 CN00045 fixed inductance TWLC 220K L3 L4 L10 L11 108 CN00069 inductance EMI SUPPRESSOR TB36 13 850485 L1 L2 109 ME00015 color nut 3m m 110 MF00132 MIC jack φ3 φ8 0 8t_v1 0 111 MF00030 washer φ3 5 φ8 0 8t_V1 0 112 MJ000...

Page 22: ...pe R63 R64 144 RA00173 fixed resistor 1 4W 47Ω F type R65 R66 R68 R70 145 HA02160 single terminal wiring UL1617 18AWG 330mm blue 146 ME00006 nut 9φ 147 MF00004 washer φ9 φ14 0 5t 148 NF02160 instruction A200 2 ALTO_V1 3 149 NH00149 paper 889 640mm 150 NE13783 label A200 2_V1 0 151 NH00334 cone paper 0 040 1m 152 HD00008 glass tube fuse 1A 250V φ5 2 20mm CSA S UL VDE 153 HA03197 single terminal wir...

Page 23: ...wiring CF W146 80 green yellow J4 189 CF00184 metal film capacitor 0 82uF 275V 10 CASE01 4mm C3 190 CG00029 high voltage capacitor 4700PF 2000V Z5V 80 20 C39 C40 C42 C43 191 CG00023 X1 Y1 capacitor 0 0022uF 250VAC Y5U C41 C1 192 CG00025 Y2 capacitor 0 0022uF 275VAC PHE 842MA4220M C37 C38 193 CG00026 X2 capacitor 0 22uF 275VAC PHE 840 830 PH22 5mm C49 194 CB00167 electrolytic capacitor 100uF 16V φ5...

Page 24: ...IR2153SPbF SOIC8 IR U2 229 SF00080 transistor PMBTA42 SOT 23 PHI Q8 Q11 230 SF00079 transistor PMBTA92 SOT 23 PHI Q9 Q10 231 SF00082 transistor MMBT5401LT1G SOT 23 ON Q5 232 SF00081 transistor MMBT4401LT1G SOT 23 ON Q4 233 SF00083 transistor MMBT5551LT1G SOT 23 ON Q6 Q7 234 CB00321 electrolytic capacitor RS 470uF 180V φ25 25mm C44 C45 235 HK06475 PC board P A200 2 PRE 236 HA01925 jump 10mm J1 J2 J...

Page 25: ...4 RC00209 potentiometer A10KΩ RV110 40E1 225A A14 VR1 VR2 265 RA00168 fixed resistor 1 4W 30Ω M type R22 R23 266 RA00181 fixed resistor 1 4W 82Ω M type R21 R24 267 RA00191 fixed resistor 1 4W 180Ω M type R25 R28 268 RA00196 fixed resistor 1 4W 270Ω M type R26 R27 269 NI01781 LED spacer support LEDS 8 8mm LED1 LED2 LED3 LED4 LED5 LED6 270 HC00067 connector male 4P 2 5mm 90 CN3 271 HC00069 connector...

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