Alto MAC 2.2 Service Manual
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MODEL: PS 4LA
MODEL: MAC2.2/2.3/2.4
www.altoproaudio.com
Version 1.0

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Summary of Contents for Alto MAC 2.2

  • Page 1 MODEL: PS 4LA MODEL: MAC2.2/2.3/2.4 www.altoproaudio.com Version 1.0...
  • Page 2 CONTENT 1. Introduction……………………………………………………………2 2. Specification………………………………………………………..…2 3. Block Diagram…………………………………………………….…..3 4. Schematic Fiagram………………………………………………..…4 5. Wiring Diagram…………………………………………………..….14 6. PCB Layout……………………………………………………..17 7. Test Procedure and Test Result………………………………..28 8. Exploded Views & Mechanical Parts List…………………..30 9. BOM…………………………………………………….…………..36...
  • Page 3 1. Introduction The stereo amplifier apparatus specialization in the performance, have versatility-changed output (stereo, parallel and bridged selector), you will hear excellence music. 1.2. Input matching allows collection with any preamplifier 1.3. Excellent frequency echo and sound quality 1.4. XLR unbalanced and 6.3ф jack output. 1.5.
  • Page 4 3. Black Diagram...
  • Page 5 4. Schematic Diagram CHANNEL-A CN1:12 PSA3600-R 6.8-1W CN1:12 +VCC_A + 6 7 V +VCC_A CN1:13 1.5K 2.4K-3W ^ R _ 0 8 0 5 SP_A ^ R _ 0 8 0 5 1N4148 CN1:13 be modify ^ R _ 1 2 0 6 2SC2412K CN1:5 22-1W...
  • Page 6 CHANNEL-B +VCC_B + 6 7 V +VCC_B 1.5K 2.4K-3W ^ R _ 0 8 0 5 ^ R _ 0 8 0 5 be modify 2SC2412K 1N4148 ^ R _ 1 2 0 6 CN3:4 22-1W 0.2-5W 0.2-5W 0.2-5W CN2:4 1N4004 2SC2412K T O L E D 4 ( S I G B )
  • Page 7 PT3530E(230V) CN2:3 PT3530H(240V) +14V +15V_B +15V_A 1N4004 150K 220K CN2:3 FUSE2 1N4004 CN2:2 ^ R _ 1 2 0 6 ^ R _ 1 2 0 6 1N4744 +VCC_A 2412K 10A 250V CN1:2 ^ Q _ B J T N _ S O T - 2 3 CN1:3 2SA1036K PSA3600-R...
  • Page 8 CHANNEL-A CN1:12 PSA3900-R 6.8-1W CN1:12 + 7 8 V +VCC_A CN1:13 1.5K 3W 3K ^ R _ 0 8 0 5 +VCC_A ^ R _ 0 8 0 5 CN1:13 1N4148 HMBT2222A ^ R _ 1 2 0 6 CN1:5 22-1W 0.2-5W 0.2-5W...
  • Page 9 CHANNEL-B + 7 8 V +VCC_B +VCC_B 1.5K ^ R _ 0 8 0 5 ^ R _ 0 8 0 5 3W 3K 1N4148 HMBT2222A CN3:4 ^ R _ 1 2 0 6 22-1W 0.2-5W 0.2-5W 0.2-5W CN2:4 1N4004 T O L E D 4 ( S I G B ) HMBT2222A 1N4148...
  • Page 10 PT3800E(230V) CN2:3 PT3800H(240V) +14V +15V_B +15V_A 1N4004 150K 220K FUSE CN2:3 1N4004 CN2:2 ^ R _ 1 2 0 6 ^ R _ 1 2 0 6 1N4744 2412K +VCC_A 12A 250V ^ Q _ B J T N _ S O T - 2 3 2412K CN1:2 CN1:3...
  • Page 11 +110_A C170 CHANNEL-A E112 56P-50V R170 Q170 ^ C _ 0 8 0 5 R171 P55NE D170 5.9K ^ R _ 0 8 0 5 3904 ^ R _ 0 8 0 5 5.6V C171 D171 R172 4.7-50V Q171 C172 R173 R174 470K...
  • Page 12 +110_B E212 C270 CHANNEL-B 56P-50V ^ R _ 0 8 0 5 Q270 R271 R270 D270 5.9K P55NE ^ R _ 0 8 0 5 ^ R _ 0 8 0 5 5.6V D271 Q271 C271 R272 C272 4.7-50V R273 R274 470K ^ Q _ B J T N _ S O T - 2 3...
  • Page 13 PT31300H(240V) 6A*12 CN101:12 PT31300E(230V) +14V +15V_A F U S E 1 +15V_A E312 CN201:12 8 0 V 150K 220K FUSE2 1N4004 1N4004 F U S E 2 ^ R _ 1 2 0 6 ^ R _ 1 2 0 6 E327 +55V_A +110V_A...
  • Page 14 PSA3000-RVR CHB-PU 470P FILTER 470P CH22 TO CN4 LED1 LED2 LED3 LED4 CLIP A SIG A SIG B CLIP B CHA-PU-1 TO CN3 CH11 470P 470P CLIP PSA3000 Schematic Diagram 4 of 4 Title PSA-3000 Size Number Revision CHA,CHB-PU;RVR Date: 17-Sep-2004 Sheet of File:...
  • Page 15 5. Wiring Diagram JP15 J203+ BR_POS J203- SPEAKON JP16 BR_NEG CHAPU E200 E201 CH11 PSA-3600-B(MAC 2.2) TO FAN TO FAN PT3530H(240V) CN301 CN303 PT3530E(230V) CHB-PU CH22 FUSE2 POWER SWITCH PSA-3000-RVR 115V Or 120V PSA-3600-A(MAC 2.2) CIRCUIT BREAKER USA:11A-125V FUSE2 EUROPE:6A-230V...
  • Page 16 JP15 J203+ BR_POS J203- SPEAKON JP16 BR_NEG CHAPU E200 E201 CH11 PSA-3900-B(MAC 2.3) TO FAN TO FAN PT3800H(240V) CN301 CN303 PT3800E(230V) CHB-PU CH22 FUSE2 POWER SWITCH PSA-3000-RVR 115V Or 120V PSA-3900-A(MAC 2.3) CIRCUIT BREAKER USA:15A-125V FUSE2 EUROPE:8A-230V +SPK 103V Or 108V 115V OR 120V JP16 JP15...
  • Page 17 JP15 J203+ BR_POS J203- SPEAKON JP16 BR_NEG CHAPU E200 E201 CN203 CH11 PSA-31500-B(MAC 2.4) TO FAN TO FAN PT31300H(240V) CN301 CN303 CN302 PT31300E(230V) CN104 E319 E329 -55V_B E318 E325 -55V_B E311 E321 E317 CN201 E326 CHB-PU E316 E322 -55V_B E315 E314 E310 CN101...
  • Page 18 6. PCB Layout PCB-CHA-PU-4 Top layer Bottom layer Top overlay PCB-MAC2.2-VR Top layer Top overlay...
  • Page 19 PCB-CHB-PU-2 Botton layer Top overlay MAC2.2/2.3 PCB-PSA-3000PWE-1 Botton layer...
  • Page 20 Top overlay MAC2.4 PCB-POWER Botton layer...
  • Page 21 Top layer Top overlay...
  • Page 22 MAC2.2/2.3 PCB-PSA-3000-L Bottom overlay Bottom layer...
  • Page 23 PCB-PSA-3000-L PCB-PSA-3000-R Bottom layer Top overlay...
  • Page 24 PCB-PSA-3000-R Top overlay Bottom overlay...
  • Page 25 MAC2.4 PCB-PSA-31300-A Botton layer Botton overlay...
  • Page 26 Top overlay Top layer...
  • Page 27 MAC2.4 PCB-PSA-31300-B Botton overlay Botton layer...
  • Page 28 Top overlay Top layer...
  • Page 29 7. Test Procedure and Test Result LABORATORY DC POWER SUPPLY DUAL TRACKING WITH 5V FIXED MODEL: GPC-3060D CURRET VOLTAGE CURRET VOLTAGE 5V 3A POWER POWER AUDIO GENERATOR GAG-810 POWER OUTPUT INPUT SET LEVEL OUTPUT (600 ) POWER ADR-245 OUTPUT INPUT 4 8 16 0-90dB 0-10dB...
  • Page 30 PCB test procedure (MAC2.2/2.3) Wiring Diagram Audio Analyzer OSCILLATION POWER 8 8 88 8 88 8 8 88 8 VP-7724A ADR-245 8888 8888 8 16 LOADSEL. 110V S.P. DCIN LOAD NORL NORL SHORT 2/4/8Ω UNSWITCH DCOUT LOADOUT 220V AC INPUT INPUT POWER OUTPUT 7.2.
  • Page 31 PCB test procedrue (MAC2.4) Wiring Diagram OSCILLATION POWER 88 88 8 88 8 8 88 8 VP-7724A ADR-245 8888 8888 4 8 16 LOADSEL. 110V DCIN LOAD S.P. NORL NORL SHORT UNSWITCH DCOUT LOADOUT 220V ACI NPUT INPUT POWER OUTPUT 7.3.
  • Page 32 8. Exploded Views & Mechanical Parts List...
  • Page 34 MAC2.2 No. Part No. Description Specification MA05423 panel MAC II-V1.1 MA05420 panel NAC2.2 ALTO MC00631 MAC II-V1.1 MB03687 chassis MAC II-V1.1 MI00397 ZB- Zn PSA-3000 HI00031 Power switch R415KKETOF NI02650 Plastic knob ψ18*18mm TD00038 transformer PT-3530E NI00440 rubber ψ20*ψ105*2tB 10 MH00766 Iron pill ψ11*ψ90*2...
  • Page 35 MAC2.3 No. Part No. Description Specification MA05423 panel MAC II-V1.1 MA05421 panel NAC2.2 ALTO MC00631 MAC II-V1.1 MB03687 chassis MAC II-V1.1 MI00397 ZB- Zn PSA-3000 HI00031 Power switch R415KKETOF NI02650 Plastic knob ψ18*18mm TD00042 transformer PT-3530E NI00437 rubber ψ20*ψ105*2tB MH00766 Iron pill ψ11*ψ90*2...
  • Page 36 MAC2.4 No. Part No. Description Specification MA05423 panel MAC II-V1.1 MA05422 panel NAC2.2 ALTO MC00631 MAC II-V1.1 MB03687 chassis MAC II-V1.1 MI00397 ZB- Zn PSA-3000 HI00031 Power switch R415KKETOF NI02650 Plastic knob ψ18*18mm TD00040 transformer PT-3530E NI00437 rubber ψ20*ψ105*2tB MH00766 Iron pill ψ11*ψ90*2...
  • Page 37 1.5*2135*1220 30.67kg MACRO Π_V1.1 MA05411 panel MJ01240 iron board 3.0t*1950*1185mm 54kg ME00004 screw pillar M3*10*0.5PH MA05420 panel MAC 2.2 ALTO_V1.1 MACRO Π MA05415 panel MACRO Π_V1.3 MA05414 panel ME00165 iron pillar M3*21*0.5PH_V1.0 MJ00058 iron board 1*2135*1220 20.45kg MAC Ⅱ_V1.0...
  • Page 38 Part No. Descriptions Specification Remark MG00244 copper pillar M3*10*0.5PH HC00005 AC socket AC-008 HA00861 power cord Europe 3P LT-312+LT-501 10A φ6*32mm HD00041 glass tube fuse HI00140 A0701HM-6A manual reposition switch MG00020 screw M3*8 MG00025 screw M3*6 MG00161 screw M3*6 MG00042 screw M3*10 MG00044...
  • Page 39 Part No. Descriptions Specification Remark MACRO Ⅱseries ALTO_V1.1 NF01893 instruction NH00149 paper 889*640mm NB03188 color box MAC 2.2 ALTO_V1.1 MAC Π ALTO_V1.0 NB03187 NI00389 plastic washer φ12*φ16*0.5 NI00375 film 45*60.5*0.5mm NA00137 clip-chain bag NE02229 label PSA-3600 220-230V NI00037 adhesive label 0.05*1M...
  • Page 40 Part No. Descriptions Specification Remark HC00076 row-wire header 2P 2.5mm 180° CN1,CN3 HC00077 row-wire header 3P 2.5mm 180° HC00056 FUSE holder 8*10.6*1.5 JEF-505 HC00324 terminal 6.5m/m (PC250) MI00177 heat sink MA103*25m/m*2PIN MI00267 heat-sink 3*30*15*36 MG00110 screw M4*20 MF00018 washer φ4*φ10*1t MG00160 screw M3*6 P0.5...
  • Page 41 Part No. Descriptions Specification Remark SB00023 power transistor 2SA1943-O Q1,Q2,Q3 SD00144 integrated circuit NE5532N/(PHI) U2,U3 3.3KΩ φ6 3P 3318F-1-332 RC00161 resistor VR2,VR3 RC00163 100Ω φ6 3P horizontal 3318P-1-101 carbon-film semi-fixed resistor 90Ω (NSA05A090L-500) RH00004 thermistor 100Ω (PTH9M04BH471TS2F333) TH2 RH00005 thermistor HC00087 row-wire header 13P 2.5mm 180°...
  • Page 42 Part No. Descriptions Specification Remark HB00377 PSA-3000-R_VER040403 820Ω ±5% 1206 RD00137 R16,R42,R65 SMD fixed resistor 1/4W 33KΩ ±5% 1206 RD00145 R24,R58 SMD fixed resistor 1/4W 47KΩ ±5% 1206 RD00146 SMD fixed resistor 1/4W 150KΩ ±5% 1206 RD00148 R38,R43 SMD fixed resistor 1/4W 390KΩ...
  • Page 43 Part No. Descriptions Specification Remark HA01932 jumper wire 20mm JP1,JP38 HA02249 wire φ0.6 HA01917 jumper wire JP52 AC00002 solder wire 63/37% HK00209 PC board P-PSA-3000-L-DIP 6.8Ω M type RA00156 fixed resistor 1/2W R12,R13 22Ω P type RA00007 R11,R14 metal-oxide-film resistor 1W 5.6Ω...
  • Page 44 Part No. Descriptions Specification Remark HA01920 jumper wire JP11,JP19 HA02249 wire φ0.6 JP15,JP18,JP20,JP29,JP35, HA01922 jumper wire JP36,JP5 HA02249 wire φ0.6 HA01925 jumper wire 10mm JP10,JP12,JP22,JP30 HA02249 wire φ0.6 HA01929 jumper wire 13mm JP14,JP26,JP27,JP31,JP32 HA02249 wire φ0.6 JP16,JP17,JP2,JP21,JP23, HA01931 jumper wire 16mm JP25,JP3,JP33,JP34,JP37 HA02249...
  • Page 45 Part No. Descriptions Specification Remark NI01770 LED spacer support LEDS-18 18mm ME00052 φ7 MF00060 washer φ7*φ12*0.5t AC00002 solder wire 63/37% HK03058 K-PC board P-CHA-PU-5 HB00798 CHA-PU-4_VER021004 CA00033 ceramic capacitor 470PF Y5E C1,C2 HC00112 XLR MIC jack 99M-107SP-1-2 90° PUSH φ6.3 stereo LJB0661-6 HC00108 stereo MIC jack CH11...
  • Page 46 MAC2.3 No. Part No. Descriptions Specification Remark MAC Ⅱ_V1.0 MA05423 panel MACRO Π-01 MA05426 panel MACRO Π_V1.1 MA05413 panel MJ00089 iron board 1.6*2135*1220 32.72kg 45.5*20*8.5*1.5t MACRO Π_V1.0 MI02355 fixed bracket MJ00088 iron board 1.5*2135*1220 30.67kg MACRO Π_V1.1 MA05411 panel MJ01240 iron board 3.0t*1950*1185mm 54kg ME00004...
  • Page 47 No. Part No. Descriptions Specification Remark 42 HA00871 power cord(Europe 3P) LT-322+1.5*3C(H05VV-F) 6FT+LT-501 12A φ6*32mm 43 HD00042 glass tube fuse 44 HI00143 manual reposition switch A0701HM-8A 45 MG00020 screw M3*8 46 MG00025 screw M3*6 47 MG00161 screw M3*6 48 MG00042 screw M3*10 49 MG00044...
  • Page 48 MAC 2.3_V1.0 98 NH00012 bond paper 0.04*1M 99 NI00014 membrane 0.035*1M 100 NF00061 assurance card ALTO 101 NE11347 label ALTO PI 102 NH00334 cone paper 0.040*1m 103 NC00059 fixed board 1*46*46(Sax-2000) 104 NC00175 insulator 1.0t*51mm*100M 105 NA00116 PE bag 0.04t*170*100mm...
  • Page 49 No. Part No. Descriptions Specification Remark 127 MG00110 screw M4*20 128 MF00018 washer φ4*φ10*1t 129 MG00160 screw M3*6 P0.5 130 HA01922 jumper wire 131 HA02249 wire φ0.6 132 MF00037 washer φ3*φ5*1t 133 HA01925 jumper wire 10mm 134 HA02249 wire φ0.6 135 AC00002 solder wire 63/37%...
  • Page 50 No. Part No. Descriptions Specification Remark 169 MI00259 heat-sink9 (black) PSA-3000 6*79*36.5*240mm 170 NC00005 silicone insulator TO-220 square type 171 MG00169 screw M3*12 172 NI00222 sleeve φ1.5*30mm 1.5φ*1000mm 173 NI00221 sleeve 174 NI00863 insulate bean TO220B 175 MF00037 washer φ3*φ5*1t 176 HK01525 K-PC board P-PSA-3000-L-1-AI...
  • Page 51 No. Part No. Descriptions Specification Remark 209 SF00019 SMD transistor HMBT5401(ZA) 210 AE00221 tin soldering paste SJ-617 211 AC00002 solder wire 63/37% 212 HK01386 PC board P-PSA-3000-R-1-DIP 6.8Ω M type 213 RA00156 fixed resistor 1/2W R10,R11,R12 11.0KΩ M type 214 RA00448 precise resistor 1/2W 13.0KΩ...
  • Page 52 No. Part No. Descriptions Specification Remark 252 MG00169 screw M3*12 253 HA01527 wire 3P-3P 100 254 NI00222 sleeve φ1.5*30mm 1.5φ*1000mm 255 NI00221 sleeve 256 NI00863 insulate bean TO220B 257 MF00037 washer φ3*φ5*1t 258 HK01547 PC board P-PSA-3000-R-1-AI JP14,JP21,JP28,JP35, 259 HA01921 jumper wire JP43,JP51,JP9 260 HA02249...
  • Page 53 No. Part No. Descriptions Specification Remark SMD fixed resistor 1/10W 39KΩ ±5% 0603 289 RD00109 R61,R62 150KΩ ±1% 1206 290 RD00257 R18,R20,R52,R53 SMD precise resistor 1/4W 499KΩ ±1% 1206 291 RD00261 R25,R59 SMD precise resistor 1/4W R37,R41,R44,R46,R48, 10.0KΩ ±1% 0603 292 RD00214 SMD precise resistor 1/10W R64,R68,R70...
  • Page 54 No. Part No. Descriptions Specification Remark 331 MF00060 washer φ7*φ12*0.5t 332 AC00002 solder wire 63/37% 333 HK03058 K-PC board P-CHA-PU-5 334 HB00798 CHA-PU-4_VER021004 335 CA00033 ceramic capacitor 470PF Y5E C1,C2 336 HC00112 balance MIC jack 99M-107SP-1-2 90° PUSH φ6.3 stereo LJB0661-6 337 HC00108 stereo MIC jack CH11...
  • Page 55 MAC2.4 No. Part No. Descriptions Specification Remark MAC Ⅱ_V1.0 MA05423 panel MACRO Π-01 MA05426 panel MACRO Π_V1.1 MA05413 panel MJ00089 iron board 1.6*2135*1220 32.72kg 45.5*20*8.5*1.5t MACRO Π_V1.0 MI02355 fixed bracket MJ00088 iron board 1.5*2135*1220 30.67kg MACRO Π_V1.1 MA05411 panel MJ01240 iron board 3.0t*1950*1185mm 54kg ME00004...
  • Page 56 No. Part No. Descriptions Specification Remark 42 MG00020 screw M3*8 43 MG00025 screw M3*6 44 MG00161 screw M3*6 45 MG00042 screw M3*10 46 MG00044 screw M4*10 47 MG00061 screw M3*10 48 MG00117 screw M4*10 49 MF00048 washer φ4*φ8*0.5t 50 MF00037 washer φ3*φ5*1t 51 ME00015...
  • Page 57 MADE IN CHINA 101 NH00038 paper 0.115*1M 102 NI00028 membrane 0.110*1M 103 NF00061 assurance card ALTO 104 NE11347 label ALTO PI 105 NH00334 cone paper 0.040*1m 106 NE08759 label MAC 2.4_V1.0 107 NH00012 bond paper 0.04*1M 108 NI00014 membrane 0.035*1M...
  • Page 58 No. Part No. Descriptions Specification Remark 126 SB00015 light-electron transistor 4N33.300 127 SB00064 transistor TIP41C(ST) 128 HC00076 row-wire header 2P 2.5mm 180° CN301,CN303 129 HC00077 row-wire header 3P 2.5mm 180° CN302 130 HC00324 terminal 6.5m/m (PC250) 131 MI00177 heat sink MA103*25m/m*2PIN 132 MI00267 heat-sink...
  • Page 59 No. Part No. Descriptions Specification Remark 12000uF/80V φ35*56mm 162 CB00157 electrolytic capacitor C120,C121,C122,C123 163 CC00001 Mylar capacitor 0.001uF/100V 5% C131,C231 164 CC00009 Mylar capacitor 0.0033uF/100V 10% C172,C179 165 CC00027 Mylar capacitor 0.022uF/100V 5% C116,C119 166 CF00013 0.068uF/250V C124,C126 metal-film capacitor MEF 167 CC00004 0.0015uF/100V 10% C114...
  • Page 60 No. Part No. Descriptions Specification Remark 203 SA00099 rectifier diode MUR1520/STPR1520D D175,D176 204 SB00121 transistor IRFZ44V(TO-220AB) Q170,Q174 205 HK00212 PC board P-PSA-31300-A-SMD 206 HB00387 PSA-31300-A_VER041120 47Ω ±5% 0805 207 RD00004 R170,R189 SMD fixed resistor 1/8W 75Ω ±5% 0805 208 RD00005 SMD fixed resistor 1/8W R124 R109,R110,R127,R209,...
  • Page 61 No. Part No. Descriptions Specification Remark 242 SG00014 SMD integrated circuit NJM13700M 243 SF00053 transistor MMBT3906(SOT-23)/(PHI) Q100,Q172,Q175,Q200 244 SF00056 transistor MMBT3904(SOT-23)/(PHI) Q101,Q102,Q171,Q173 245 AE00221 tin soldering paste SJ-617 246 NC00129 insulation 0.3t*45*24mm 470KΩ M type 247 RA00583 precise resistor 1/4W 248 AC00002 solder wire 63/37%...
  • Page 62 No. Part No. Descriptions Specification Remark 285 HC00056 FUSE holder 8*10.6*1.5 JEF-505 25A φ6*32mm 286 HD00050 glass tube fuse 287 NC00005 silicone insulator TO-220 square type 288 MG00169 screw M3*12 289 NI00222 sleeve φ1.5*30mm 1.5φ*1000mm 290 NI00221 sleeve 291 NI00863 insulate bean TO220B 292 MF00037...
  • Page 63 No. Part No. Descriptions Specification Remark 3.01KΩ ±1% 0805 328 RD00234 R275 SMD precise resistor 1/8W 5.90KΩ ±1% 0805 329 RD00236 R271,R284 SMD precise resistor 1/8W 464KΩ ±1% 1206 330 RD00259 SMD precise resistor 1/4W D14,D2,D204,D211,D212, D213,D214,D215,D216,D271, 331 SE00011 SMD rectifier diode RLS4148 0.5A (LL-34) D273,D277,D3,D4,D5,D6,D7, 332 CI00013...
  • Page 64 No. Part No. Descriptions Specification Remark 371 HC00112 XLR MIC jack 99M-107SP-1-2 90° PUSH 372 HI00125 slide switch SL20202-25Y-6mm 373 HC00267 row-wire header 7P 2.5mm 180° 374 HA01756 80 black P.V.CwiredUL1015 375 AC00002 solder wire 63/37% 376 NI01867 self-adhere foot cushion 20.5*14*7.6mm(SF-006) 377 NA00279 clip-chain bag...

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