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Alto DPA 1500, Service Manual

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Alto DPA 1500 Service Manual Download Page 24

6. Exploded Views & Mechanical Parts 

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Summary of Contents for DPA 1500

Page 1: ...www altoproaudio com Version 2 0 MODEL PS 4LA MODEL DPA 900 1500 ...

Page 2: ...1 CONTENT 1 Introduction 2 2 Specification 3 3 Schematic Diagram 4 4 PCB Layout 13 5 Test Procedure Test Result 18 6 Exploded Views Mechanical Parts List 23 7 BOM 26 ...

Page 3: ...e default status and then goes back to normal All electronic inputs equip standard power connectors And all inputs are electronic balanced with hi quality transformer MISTRAL amplifiers provide an outstanding performance in any conditions z Innovative design and high stability power amplifiers z Fan cooled AB class high power amplifier in 19 rack 2Usize z Rugged amplifiers in a strong compact chas...

Page 4: ...nced 20k Ohms balanced 56 36dB Controls Front AC switch CH1 CH2 Gain knobs Rear Limiter bridge selector Indicators 1per channel Power on Blue LED Operation Protection Dual Color green red LED Limit Red LED Clip Red LED Connectors each channel Input Active balanced XLR Parallel output XLR Output NEUTRIK speaker and binding posts Cooling Continuously variable speed fan rear to front air flow Load pr...

Page 5: ...VE 3 2 of MISTRAL1500 VER040302 A2 3 2 1 U2A NJM4580L 1 2 R1_42 4K7 1 8W 1 2 R1_41 4K7 1 8W 1 2 3 4 D1_9 W2 04 GND1 1 2 R1_25 47R 4 4 1 1 2 2 3 3 U1_2 VTL5C2 GND1 FTR VT90N1 VACTEC GND1 CH1 INSERT OUT CH1 INSERT IN 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 J4 HEADER 7X2 GND1 GND1 1 2 L1_1 2uH10A 1 2 R1_26 5R6 2W 1 2 R1_22 10R 3W 1 2 C1_2 100nF 250V poly GND1 CH1 OUTPUT 1 1 ...

Page 6: ...Sheet Revision Model No 2 Mar 2004 C C LIN ALTO MISTRAL1500 CH1 DRIVE 3 2 of MISTRAL1500 VER040302 A2 3 2 1 U2A NJM4580L 1 2 R1_42 4K7 1 8W 1 2 R1_41 4K7 1 8W 1 2 3 4 D1_9 W2 04 GND1 1 2 R1_25 47R 4 4 1 1 2 2 3 3 U1_2 VTL5C2 GND1 FTR VT90N1 VACTEC GND1 CH1 INSERT OUT CH1 INSERT IN 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 J4 HEADER 7X2 GND1 GND1 1 2 L1_1 2uH10A 1 2 R1_26 5R...

Page 7: ...Sheet Revision Model No 2 Mar 2004 C C LIN ALTO MISTRAL1500 CH1 DRIVE 3 2 of MISTRAL1500 VER040302 A2 3 2 1 U2A NJM4580L 1 2 R1_42 4K7 1 8W 1 2 R1_41 4K7 1 8W 1 2 3 4 D1_9 W2 04 GND1 1 2 R1_25 47R 4 4 1 1 2 2 3 3 U1_2 VTL5C2 GND1 FTR VT90N1 VACTEC GND1 CH1 INSERT OUT CH1 INSERT IN 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 J4 HEADER 7X2 GND1 GND1 1 2 L1_1 2uH10A 1 2 R1_26 5R...

Page 8: ...JM4580L 5 6 7 U2_1B NJM4580L B E C Q2_3 1 1 2 2 3 3 R2_29 3P 2 5 MIS15 CH2 Sch Titel Size File Date Drawn By Sheet Revision Model No 2 Mar 2004 C C LIN ALTO MISTRAL1500 CH1 DRIVE 3 3 of MISTRAL1500 VER040302 A2 5 6 7 U2B NJM4580L 1 2 R2_42 4K7 1 8W 1 2 R2_41 4K7 1 8W 1 2 3 4 D2_9 W2 04 GND1 1 2 R2_25 47R 4 4 1 1 2 2 3 3 U2_2 VTL5C2 GND1 FTR VT90N1 VACTEC GND1 CH2 INSERT OUT CH2 INSERT IN 1 2 L2_1 ...

Page 9: ...5 6 P SW1B BRIDGE 1 2 3 SW2A LIMITER 4 5 6 P SW2B LIMITER 2 1 3 4 PJ1 CH1 JACK IN 2 1 3 4 CN5 CH2 XLR IN 2 1 3 4 CN4 CH2 LINK OUT 2 1 3 4 PJ2 CH2 JACK IN 1 2 3 CN7 CON3 1 2 3 CN6 CON3 1 2 3 CN8 CON3 1 2 3 CN9 CON3 MIS15IN Sch Titel Size File Date Drawn By Sheet Revision Model No 8 Mar 2004 C C LIN ALTO MISTRAL1500 1 1 of MISTRAL1500 VER040204 A3 8 ...

Page 10: ... 2 D1_30 3mm YELLOW LED 1 2 D1_3 3mm RED LED 1 2 D1_29 3mm BLUE LED LIMITER CLIP ON PROTECTION 1 2 D1_1 3mm GREEN LED POWER ON VR1_1 B50K VR2_1 B50K 1 2 3 CN1_1 3P2 5 1 2 3 CN2_1 3P2 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 CN3 CON14 MIS15FP Sch Titel Size File Date Drawn By Sheet Revision Model No 8 Mar 2004 C C LIN ALTO MISTRAL1500 1 1 of MISTRAL1500 VER040204 A3 9 ...

Page 11: ... 2 R5 0R 1 2 R4 3K3 1 2 D2 3mm GREEN LED POWER ON LED 1 G 2 C6 10uF 50 1 1 2 2 3 3 J3 CON3 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 J1 HEADER 5X2 CH1 INSERT OUT CH1 INSERT IN CH2 INSERT OUT CH2 INSERT IN GND1 GND1 15V 15V GNDF GNDF GND1 MIS15 MIS15 CH1 SCH MIS15 MIS15 CH2 SCH MIS15 FAN Sch Titel Size File Date Drawn By Sheet Revision Model No 2 Mar 2004 C C LIN ALTO MISTRAL1500 FAN 3 1 of MISTRAL...

Page 12: ...11 ...

Page 13: ...12 ...

Page 14: ...4 PCB Layout MIS15FP Top overlay Bottom layer 13 ...

Page 15: ...MIS151N1 Top overlay Bottom layer MIS151N2 Top overlay Bottom layer 14 ...

Page 16: ...Top layer 15 MIS15MN ...

Page 17: ...Top overlay 16 ...

Page 18: ...Bottom layer 17 ...

Page 19: ...H2 of amplifier respectively z Turn the volume knob counter clockwise fully Step 3 Power supply test z Plug the amplifier into mains turn on the amplifier z Make sure all the voltage values are correct then turn off power Step 4 DSP Test 4 1 press the ENTER and SEL at the same time The unit will enter the test modal and check as following a All LEDs will light up in sequence b The display will sho...

Page 20: ...N LED shows red then it turns green after 2 5 seconds or so 2 Without signal input adjust R1 16 CH1 and R2 16 CH2 so that the voltage of R1 17 2 17 is 125 2Mv DPA900 130 2mV Connect a 4Ω load at output Input a 5KHz signal into CH1 or CH2 Adjust the signal so that the output is 5VP P about 2VRMS Verify the curve on oscilloscope and there should be no crossover distortion 3 Input a 1KHz 6dB signal T...

Page 21: ...pped signal 7 Adjust the VR on front panel so that the output is 2V 4Ω The measured frequency response is more than 35Hz to 20 kHz 1dB CH1 CH2 8 Release the BRIDGE switch Input a 1KHz signal into CH1 the level control of CH2 is turn to minimum Connect a 8Ωload with output terminal Measure the bridged output voltage is more than about 50V for DPA900 and 70V for DPA1500 the distortion is less than 1...

Page 22: ...ut at 1KHz 6dBV 736W W VR MAX CLIP ON Load 4Ω CHA B 25V 25V V 4 Rated Output Load 8Ω V V INPUT 1KHz CLIP ON 5 Signal Noise Input 1KHz 6dB Load 4Ω 90dB 102dB A dB VR MAX CLIP ON 6 Hum or Noise VR Max 2mV mV VR MAX 0 3 10W 0 2 100W 7 Distortion Input 1KHz 6dB BAL 6 1dB dB CHA CHB 8 INPUT SENSITIVITY 9 BRIDGED SW AT BRIDGED 50V 8Ω V 10 OUTPUT SHORT TEST IN 1khz 0dB 150W CHA CHB 11 PUNCTURE VOLTAGE 5m...

Page 23: ...6dBV 1288W W VR MAX CLIP ON Load 4Ω CHA B 33V 33V V 4 Rated Output Load 8Ω V V INPUT 1KHz CLIP ON 5 Signal Noise Input 1KHz 6dB Load 4Ω 90dB 102dB A dB VR MAX CLIP ON 6 Hum or Noise VR Max 2mV mV VR MAX 0 2 10W 0 15 100W 7 Distortion Input 1KHz 6dB 0 5 300W BAL 6 1dB dB CHA CHB 8 INPUT SENSITIVITY 9 BRIDGED SW AT BRIDGED 70V 8Ω V 10 OUTPUT SHORT TEST IN 1khz 0dB 150W CHA CHB 11 PUNCTURE VOLTAGE 5m...

Page 24: ...6 Exploded Views Mechanical Parts List 23 ...

Page 25: ... 4 20 MG00061 screw M3 10 10 21 MG00295 screw M4 6 4 22 MG00042 screw M3 6 34 23 MG00042 screw M3 10 6 24 MF00037 Spring washer 3 5 1t 12 25 ME00015 Color nut 3mm 6 26 MF00038 washer 4 7 1t 7 27 ME00016 Color nut 4mm 3 28 MF00018 Color washer 4 10 1t 3 29 MF00048 washer 4 8 0 5t 1 30 HI00140 switch A0701HM 6A 1 31 NI00389 Plastic washer 12 16 0 5 1 32 MG00041 screw M3 6 12 33 MG00075 screw M4 16 4...

Page 26: ...H 4 20 MG00061 screw M3 10 10 21 MG00295 screw M4 6 4 22 MG00042 screw M3 6 34 23 MG00042 screw M3 10 6 24 MF00037 Spring washer 3 5 1t 12 25 ME00015 Color nut 3mm 6 26 MF00038 washer 4 7 1t 7 27 ME00016 Color nut 4mm 3 28 MF00018 Color washer 4 10 1t 3 29 MF00048 washer 4 8 0 5t 1 30 HI00140 switch A0701HM 6A 1 31 NI00389 Plastic washer 12 16 0 5 1 32 MG00041 screw M3 6 12 33 MG00075 screw M4 16 ...

Page 27: ...top cover MISTRAL2500_V1 0 20 MC00621 top cover MISTRAL2500_V1 0 21 MJ00088 single light board 1 5 2135 1220 30 67kg 22 MI01744 handle MISTRAL4000 20 25 5 80 23 MI01745 handle MISTRAL4000 20 25 5 80 24 MI02356 fixed bracket 156 1 84 9 84 1 0t MISTRAL1500_V1 0 25 MJ00061 Zn plated board 1 2135 1220 20 45kg 26 MI01746 front board MISTRAL4000 14 81 89 27 MJ00061 Zn plated board 1 2135 1220 20 45kg 28...

Page 28: ...015 14AWG black 55 HA02329 wire 300mm UL1015 14AWG red 56 HA01198 wire 180mm UL1015 14AWG black 57 HA01251 wire 200mm UL1015 14AWG red 58 NI00252 sleeve φ4 20mm 59 NI00248 sleeve φ4 1000mm 60 SA00011 bridge rectifier 25A 200V 61 MG00247 copper pillar M3 10 0 5PHsingle length16 62 MG00061 screw M3 10 63 MG00295 screw M4 6 64 MG00025 screw M3 6 65 MG00042 screw M3 10 66 MF00037 washer φ3 φ5 1t 67 ME...

Page 29: ... 035 1M 103 NE11347 label ALTO PI 104 NH00334 cone paper 0 040 1m 105 NB02086 box MACRO 106 NB01944 barrier PSA 3000_V1 1 107 MG00027 screw M3 12 108 HA01658 header wiring FL 0464A 6P 6P PH1 27 65 109 HA01659 header wiring FL 0464A 8P 8P PH1 27 75 110 HA01660 header wiring FL 0464A 14P 14P PH1 27mm 65mm 111 HA01661 header wiring FL 0464A 20P 20P PH1 27 65 112 HA01502 header wiring 6P 6P 120 113 HA...

Page 30: ...C2 3 C1 25 C2 25 144 CA00043 ceramic capacitor 0 0033uF C1 11 C1 12 C2 11 C2 12 145 CA00070 ceramic capacitor 0 022uF 50V 20 Y5U C1 10 C2 10 146 CA00053 ceramic capacitor 0 1uF SL C2 147 CB00025 electrolytic capacitor 10uF 50V φ6 7mm C1 23 C1 24 C2 23 C2 24 C6 148 CB00185 electrolytic capacitor 10uF 63V φ5 11mm C3 149 CB00169 electrolytic capacitor 47uF 16V NP φ6 3 11mm C1 6 C2 6 150 CB00039 elect...

Page 31: ... PT1030 V1B101 C1 H10 R1 16 R2 16 184 SD00032 integrated circuit LM317T U1 185 SD00173 integrated circuit NJM4580L JRC U2 U1 1 U2 1 186 HC00064 FUSE holder JEF 503B 5 2mm F1 1 F1 2 F2 1 F2 2 187 HD00079 ceramic tube fuse 4A250V φ5 2 20mm CSA S T UL VDE 188 NC00005 silicone insulator TO 220 square type 189 MF00030 washer φ3 φ8 0 8t 190 MF00037 washer φ3 φ5 1t 191 MG00171 screw M3 14 192 MI02363 hea...

Page 32: ...peaker socket NL4MP NEUTRIK SPK1 SPK2 228 MJ00942 fixed bracket CS12 600 229 MJ00061 Zn plated board 1 2135 1220 20 45kg 230 HA01239 singleterminalwiringCF W209 180mm UL1015 14AWG white JP5 231 HA01237 singleterminalwiringCF W207 200mm UL1015 14AWG gray JP2 232 HA02471 single terminal wiring 360mm UL1015 14AWG white JP7 233 HA01258 single terminal wiring 380mm UL1015 14AWG gray JP8 234 HA03432 sin...

Page 33: ...inal 6 5m m PC250 270 CB00040 electrolytic capacitor 47uF 25V φ5 11mm C3 271 SA00101 zener diode 1W 6 8V 1N4736 D1 D2 272 SA00104 zener diode 1W 10V 1N4740 D3 D4 273 SD00019 integrated circuit MAX202ECPE IC2 274 HA02503 wire 9P 10P 50mm UL2651 28AWG PH1 27mm CN1 275 HC00048 row wire header 8PIN A28b 8B T 6 CN2 276 HC00111 balance MIC jack 99M 108SP1 S1 277 HC00112 balance MIC jack 99M 107SP 1 2 90...

Page 34: ... HC00047 row wire header 6PIN A28b 6B T 6 J7 313 HC00048 row wire header 8PIN A28b 8B T 6 J1 J6 314 HC00051 row wire header 20PIN A28b 20B T 6 J2 J3 315 HC00050 row wire header 14PIN A28b 14B T 6 J5 J4 316 NC00005 silicone insulator TO 220 square type 317 NI00863 insulate bean TO220B 318 MG00270 screw M3 10 319 MI01820 fixed bracket DPA4000 2 5t 42 5 83 8 102 5 320 MJ00093 AL plate 2 5 2000 1000 1...

Page 35: ... SMD ceramic capacitor 0603 22PF 50V NPO 5 C29 356 CI00075 SMD ceramic capacitor 0603 0 1uF 50V Y5V 80 20 C1 C10 C11 C13 C15 C17 C16 C18 C19 C20 C21 C22 C23 C24 C25 C27 C3 C30 C31 C32 C33 C34 C35 C6 C7 C8 C9 357 CL00006 SMD tantalum capacitor 10uF 16V case B2 C26 C5 358 RD00068 SMD fixed resistor 1 10W 100Ω 5 0603 R14 R15 R2 R27 R29 R30 R32 R39 R40 R6 R7 R8 359 RD00073 SMD fixed resistor 1 10W 220...

Page 36: ...um capacitor 10uF 16V case B2 C26 C27 C28 C29 C30 C4 0 C44 C5 C6 390 RD00063 SMD fixed resistor 1 10W 22Ω 5 0603 R10 R3 R7 R9 391 RD00088 SMD fixed resistor 1 10W 2 2KΩ 5 0603 R12 R17 R18 R19 R21 R23 R24 R27 392 RD00091 SMD fixed resistor 1 10W 3 3KΩ 5 0603 R16 R20 R22 R28 393 RD00093 SMD fixed resistor 1 10W 4 7KΩ 5 0603 R1 R13 R4 R6 394 RD00101 SMD fixed resistor 1 10W 10KΩ 5 0603 R25 R26 395 SG...

Page 37: ...le 9P female UL2464 28AWG 5000m 416 NI01863 key φ5 5 W10 7 5 417 NF01981 instruction DPA900 1500 ALTO_V1 0 418 NH00231 paper 889 554mm 419 MG00588 screw 4 75 11 8mm 420 NI02145 acrylic panel DPA series ALTO_V1 1 421 NI02146 acrylic panel DPA4000 3t 40 47mm 422 NE02717 label MADE IN CHINA 423 NH00038 paper 0 115 1M 424 NI00028 membrane 0 110 1M 36 ...

Page 38: ...top cover MISTRAL2500_V1 0 21 MJ00088 single light board 1 5 2135 1220 30 67kg 22 MI01744 handle MISTRAL4000 20 25 5 80 23 MI01745 handle MISTRAL4000 20 25 5 80 24 MI02356 fixed bracket 156 1 84 9 84 1 0t MISTRAL1500_V1 0 25 MJ00061 Zn plated board 1 2135 1220 20 45kg 26 MI01746 front board MISTRAL4000 14 81 89 27 MJ00061 Zn plated board 1 2135 1220 20 45kg 28 MJ01227 cushion MISTRAL2500 29 MJ0122...

Page 39: ... black 57 HA01251 wire 200mm UL1015 14AWG red 58 NI00252 sleeve φ4 20mm 59 NI00248 sleeve φ4 1000mm 60 SA00011 bridge rectifier 25A 200V 61 MG00247 copper pillar M3 10 0 5PHsingle length16 62 MG00061 screw M3 10 63 MG00295 screw M4 6 64 MG00025 screw M3 6 65 MG00042 screw M3 10 66 MF00037 washer φ3 φ5 1t 67 ME00015 nut 3m m 68 MF00038 washer φ4 φ7 1t 69 ME00016 nut 4m m 70 MF00018 washer φ4 φ10 1t...

Page 40: ...der wiring FL 0464A 14P 14P PH1 27mm 65mm 108 HA01661 header wiring FL 0464A 20P 20P PH1 27 65 109 HA01502 header wiring 6P 6P 120 110 HA02659 wire 8P 8P 160mm UL2651 28AWG PH1 27mm 111 HA02661 wire 20P 20P 460mm UL2651 28AWG PH1 27mm 112 HA02660 wire 14P 14P 460mm UL2651 28AWG PH1 27mm 113 HA03080 wire 10P 10P 380mm UL2651 28AWG PH1 27mm 114 HK00622 PC board P MIS15MN MISTRAL1500 115 HB01189 PCB ...

Page 41: ... 145 CB00185 electrolytic capacitor 10uF 63V φ5 11mm C3 146 CB00169 electrolytic capacitor 47uF 16V NP φ6 3 11mm C1 6 C2 6 147 CB00039 electrolytic capacitor 47uF 25V φ5 11mm C1 26 C2 26 148 CB00043 electrolytic capacitor 47uF 100V φ10 12mm C1 1 C2 1 149 CB00055 electrolytic capacitor 220uF 16V φ8 11mm C1 4 C1 8 C2 4 C2 8 150 CB00067 electrolytic capacitor 470uF 35V φ10 20mm C4 C5 151 CB00093 elec...

Page 42: ...B 5 2mm F1 1 F1 2 F2 1 F2 2 184 HD00070 ceramic tube fuse 5A 250V φ5 2 20mm CSA S T UL VDE 185 NC00005 silicone insulator TO 220 square type 186 MF00030 washer φ3 φ8 0 8t 187 MF00037 washer φ3 φ5 1t 188 MG00171 screw M3 14 189 MI02363 heat sink 9 83 40 270 MISTRAL1500_V1 0 190 MI01956 fixed bracket MISTRAL900 1 5t 130 5 16mm left 191 MJ00069 iron board 1 5 2135 1220 30 67kg 192 NC00182 insulator M...

Page 43: ...white JP5 228 HA01237 singleterminalwiringCF W207 200mm UL1015 14AWG Grey JP2 229 HA02471 single terminal wiring 360mm UL1015 14AWG white JP7 230 HA01258 single terminal wiring 380mm UL1015 14AWG Grey JP8 231 HA03432 single terminal wiring 100mm UL1015 14AWG JP1 JP3 232 HA03433 single terminal wiring 100mm UL1015 14AWG JP6 JP4 233 HB01396 PCB MIS60SP 2 4 _VER040922 234 AC00002 solder wire 63 37 23...

Page 44: ...SD00019 integrated circuit MAX202ECPE IC2 271 HA02503 wire 9P 10P 50mm UL2651 28AWG PH1 27mm CN1 272 HC00048 row wire header 8PIN A28b 8B T 6 CN2 273 HC00111 balance MIC jack 99M 108SP1 S1 274 HC00112 balance MIC jack 99M 107SP 1 2 90 PUSH S2 275 AC00002 solder wire 63 37 276 HK03846 PC board P DPA2500 DISPLAY 277 HB01071 PCB DPA DIS 1 2 2 _VER050120 278 CH00017 laminated capacitor 0 1uF 50V Y5V P...

Page 45: ...50 row wire header 14PIN A28b 14B T 6 J5 J4 313 NC00005 silicone insulator TO 220 square type 314 NI00863 insulate bean TO220B 315 MG00270 screw M3 10 316 MI01820 fixed bracket DPA4000 2 5t 42 5 83 8 102 5 317 MJ00093 AL plate 2 5 2000 1000 13 6kg 318 MG00252 copper pole M3 6 2 0 5PHsingle length12 319 MG00363 copper pillar M3 14 0 5PH 320 MG00269 screw M3 6 321 HK00602 PC board P DPA2500 PWR SMD ...

Page 46: ... C20 C21 C22 C23 C24 C25 C27 C3 C30 C31 C32 C33 C34 C35 C6 C7 C8 C9 354 CL00006 SMD tantalum capacitor 10uF 16V case B2 C26 C5 355 RD00068 SMD fixed resistor 1 10W 100Ω 5 0603 R14 R15 R2 R27 R29 R30 R32 R39 R40 R6 R7 R8 356 RD00073 SMD fixed resistor 1 10W 220Ω 5 0603 R19 R20 R22 R35 R36 R37 R38 R5 357 RD00076 SMD fixed resistor 1 10W 330Ω 5 0603 R28 358 RD00079 SMD fixed resistor 1 10W 560Ω 5 060...

Page 47: ...03 R10 R3 R7 R9 388 RD00088 SMD fixed resistor 1 10W 2 2KΩ 5 0603 R12 R17 R18 R19 R21 R23 R24 R27 389 RD00091 SMD fixed resistor 1 10W 3 3KΩ 5 0603 R16 R20 R22 R28 390 RD00093 SMD fixed resistor 1 10W 4 7KΩ 5 0603 R1 R13 R4 R6 391 RD00101 SMD fixed resistor 1 10W 10KΩ 5 0603 R25 R26 392 SG00054 SMD integrated circuit AK4393VF AKM IC2 393 SG00061 SMD integrated circuit AK5383VS AKM IC1 394 SG00040 ...

Page 48: ...r 0 04 1M 415 NI00014 membrane 0 035 1M 416 NI01863 key φ5 5 W10 7 5 417 NF01981 instruction DPA900 1500 ALTO_V1 0 418 NH00231 paper 889 554mm 419 MG00588 screw 4 75 11 8mm 420 NI02145 acrylic panel DPA series ALTO_V1 1 421 NI02146 acrylic panel DPA4000 3t 40 47mm 47 ...

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