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Alto MISTRAL 1500, Руководство по обслуживанию

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Alto MISTRAL 1500 Скачать руководство пользователя страница 16

5

. Test Procedure

1)

 

Test Equipment:

1.Frequency transformer    2.Digital voltage meter    3.AP ( Audio precision )    4.Oscilloscope

5.Two 

8

Ω

(400W) load

2)

 

Test procedures and specification

1.Set LIMITER and BRIDGE switches at OFF, turn VR of CH1 and CH2 to maximum, then turn on the power switch and the

blue power LED lights up, and OPERATING/PROTECTION LED shows red then become green after 2-5 seconds or so.

2. Applied no signal, adjust R1-16(CH1) and R2-16(CH2) so that the voltage of R1-17/2-17 is 125

±

2Mv(MISTRAL900)/130

±

2mV. Connect a 4

Ω

  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 shall be no crossover distortion.

3. Input a 1KHz,

－

6dB signal, the output shall be 26V+/-0.5V( for MISTRAL900) and 37V+/-0.5V(for MISTRAL1500), and

the distortion shall be less than 1%. Using the multifunctional meter to measure two pins of JP3, the voltage is about 12V at

first, then using a heat blower to blow R3, the voltage will increase up to about 26V. Using a tweezers to short R1-38 (CH1)

and R2-38(CH2), the overheat protection will start (no signal output).

4.To short the output terminal while the it reaches to maximum output level, the LIMITER on front panel is lit, the power

consumption is less than 150W(MISTRAL900/1500) while in short protection.

5.S/N: larger than 90dB(A weighted is more than 100dB)

6. Compressor function test: LIMITER switch is set at ON, input a 1KHz / +10dB signal, the LIMITER LED is lit in yellow and

there is no clipped signal.

7.Adjust the VR on front panel so that the output is :2V(4

Ω

). The measured frequency response is more than 35Hz to 20

kHz+/-1dB (CH1/CH2)

8.Press the BRIDGE switch down, input a 1KHz signal into CH1(the level control of CH2 is turn to minimum), connect a 8

Ω

load at output terminal, measure the bridged output voltage is more than about 50V(for MISTRAL900) and    70V (for

MISTRAL1500), the distortion is less than 1%.

9.Turn off the input signal, the power consumption shall be less than 50W.

10. Done

Содержание MISTRAL 1500

Страница 1: ...Service MODEL MISTRAL900 1500 www altoproaudio com Version 2 0 ...

Страница 2: ...1 CONTENTS 1 Introduction 2 2 Specification 3 3 Schematic Diagram 4 4 PCB Layout 11 5 Test Procedure 15 6 Exploded Views Mechanical Parts List 16 7 BOM 19 ...

Страница 3: ...nctions upon the 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 Innovative design and high stability power amplifiers Fan cooled AB class high power amplifier in 19 rack 2Usize Rugged amplifiers in a strong com...

Страница 4: ...nce 10 k ohms unbalanced 20 k ohms balanced 56 36dB Controls FRONT AC SWITCH CH1 CH2 GAIN KNOBS REAR LIMITER BRIDGE SELECTOR Indicators 1 per 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 Speakon and Binding posts Cooling Continuously variable speed fan rear to ...

Страница 5: ...500 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 5R6 2W 1 2 R1_22 10R 3W 1 2 C1_2 100nF 250V poly GND1 CH1 ...

Страница 6: ... B E C Q2_3 1 1 2 2 3 3 R2_29 3P 2 5 MIS9 CH2 Sch Titel Size File Date Drawn By Sheet Revision Model No 16 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 2uH10A 1 2 R2_26 5R6 2W 1 2 ...

Страница 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 5...

Страница 8: ...NJM4580L 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...

Страница 9: ...1 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 ...

Страница 10: ... 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 ...

Страница 11: ...1 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 MISTRA...

Страница 12: ......

Страница 13: ......

Страница 14: ......

Страница 15: ......

Страница 16: ...ins of JP3 the voltage is about 12V at first then using a heat blower to blow R3 the voltage will increase up to about 26V Using a tweezers to short R1 38 CH1 and R2 38 CH2 the overheat protection will start no signal output 4 To short the output terminal while the it reaches to maximum output level the LIMITER on front panel is lit the power consumption is less than 150W MISTRAL900 1500 while in ...

Страница 17: ......

Страница 18: ...MISTRAL1500 1 12 MI02361 ZD fixing bracket 197 3 84 27 1 0t MISTRAL1500_V1 0 1 13 NI02650 Plastical knob φ18 18mm 2 14 NI02651 Knob sleeve 10 φ22 5 black A600 2 2 15 HC00005 AC socket AC 008 1 16 HI00031 Power switch R415KKETOF 1 17 SA00011 Bridged rectifier 25A 200V 2 18 MG00247 Copper post M3 10 0 5PH total 16 4 19 MG00061 Black plated screw M3 10 10 20 MG00295 Black plated screw M4 6 12 21 MG00...

Страница 19: ... transformer PT MIS1500 700W_115V 230V 1 42 HK00622 K PCB P MIS15MN MISTRAL1500 1 43 HK03958 K PCB P MIS40PWR 1 44 HK02069 K PCB P MIS15FP 1 45 HK04015 K PCB P MIS40SP 1 46 HK02070 K PCB P MIS15IN1 1 47 HK02071 K PCB P MIS15IN2 1 48 HK00793 K PCB P MIS2500 INPUT terminal stage 2 49 MG00027 Black plated screw M3 12 4 50 MJ01252 ZD cushion plate 250 8 1 0t MISTRAL1500_V1 0 1 51 MI00427 ZD fixing bra...

Страница 20: ...ISTRAL 1500 ψ30 ψ160 1 5t_V1 0 17 MJ00088 iron board 1 5 2135 1220 30 67kg 18 MC00517 top cover MISTRAL4000 19 MC00622 top cover MISTRAL2500_V1 0 20 MC00621 top cover MISTRAL2500_V1 0 21 MJ00088 iron 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 ...

Страница 21: ... 48 HA01247 wire 180mm UL1015 14AWG blue 49 HA01248 wire 150mm UL1015 14AWG brown 50 HA02891 wire 3P 3P 400mm UL2547 28AWG 51 HA02892 wire 3P 3P 250mm UL2547 28AWG 52 HA02856 wire 3P 3P 160mm UL1007 24AWG 53 HA01394 row wire connector wiring 3P 3P 120 54 HA02328 wire 300mm UL1015 14AWG black 55 HA02329 wire 300mm UL1015 14AWG red 56 HA01198 wire 180mm UL1015 14AWG black 57 HA01251 wire 200mm UL101...

Страница 22: ... 2 0t 1850 950mm 27 6kg 87 TD00181 loop transformer PT MIS900_115 230V 88 HE00049 fan 24V 0 21A 80 80 25mm 360mm JST2P 89 NI00312 power switch button square 5 5 9 hole 2 8 2 8 black 90 HA00861 power cord Europe 3P LT 312 LT 501 91 NI00218 cable tie black ALT 102SB 92 NA00116 PE bag 0 04t 170 100mm 93 NI01867 self adhere foot cushion 20 5 14 7 6mm SF 006 94 HJ00006 desiccant 30g 95 NA00135 PE bag 0...

Страница 23: ... resistor 1 4W 47KΩ M type R1 34 R2 34 123 RA00282 fixed resistor 1 4W 100KΩ M type R1 35 R2 35 124 RA00284 fixed resistor 1 4W 120KΩ M type R1 36 R2 36 125 RA00138 fixed resistor 1 2W 3 3KΩ M type R1 33 R2 33 126 RA00007 metal oxide film resistor 1W 22Ω P type R1 13 R1 14 R2 13 R2 14 127 RA00051 metal oxide film resistor 2W 5 6Ω P type R1 26 R2 26 128 RA00045 metal oxide film resistor 2W 1 5KΩ P ...

Страница 24: ... L E D 5m m circle red B1115 D1 4 D2 4 155 SA00002 high speed diode 1A 600V 1N4937 D1 11 D1 12 D2 11 D2 12 156 SA00205 zener diode 1 2W 3 9V D1 13 D1 14 D2 13 D2 14 157 HC00504 row wire header male 10P 2 54mm 180 J1 158 HC00172 row wire header male 3P 3 96mm 180 J2 159 HC00365 row wire header male 14P 2 54mm 180 C03 14AG1 J4 160 HC00625 row wire header male 14P 2 5mm 180 161 HC00076 row wire heade...

Страница 25: ...0 5 16mm left 191 MJ00069 iron board 1 5 2135 1220 30 67kg 192 HK02231 coupling P photosensitive resistanceφ5LLED 193 RH00020 photosensitive resistance VT90N1 194 SA00201 L E D φ5 red LI3330 A 195 NI02779 sleeve φ9 30mm 196 NI00274 sleeve φ9 1000mm 197 CB00217 electrolytic capacitor 470uF 50V φ10 20mm C1 198 RA00198 fixed resistor 1 4W 300Ω M type R1 4 R1 7 R2 4 R2 7 199 CB00009 electrolytic capac...

Страница 26: ...WG grey 225 HA02471 wire 360mm UL1015 14AWG white 226 HA01258 quick terminal wiring 380mm UL1015 14AWG grey 227 HK02070 PC board P MIS15IN1 228 HB01169 PCB MIS15 IN1 2 4 _VER040205 229 HC00110 MIC jack JY 6314 02 340 PJ1 230 HC00112 XLR MIC jack 99M 107SP 1 2 90 PUSH CN2 231 HC00111 XLR MIC jack 99M 108SP1 CN3 232 HA02893 wire 14P 14P 280mm UL2651 28AWG PH1 27mm CN1 233 HC00077 row wire header mal...

Страница 27: ...shion 250 8 1 0t MISTRAL1500_V1 0 250 MJ00061 Zn plated board 1 2135 1220 20 45kg 251 MI00427 fixed bracket PSA 3000 252 MJ00058 iron board 1 2135 1220 20 45kg 253 MG00111 screw pill 4 30 254 NA00279 clip chain bag 0 04t 100 150mm_V1 0 255 AD00012 twin adhesive 90 120mm_V1 0 256 HA01265 wire 400mm UL1015 14AWG green 257 NI00219 cable tie CV 075 white AST 145 K ...

Страница 28: ...TRAL 1500 ψ30 ψ160 1 5t_V1 0 17 MJ00088 iron board 1 5 2135 1220 30 67kg 18 MC00517 top cover MISTRAL4000 19 MC00622 top cover MISTRAL2500_V1 0 20 MC00621 top cover MISTRAL2500_V1 0 21 MJ00088 iron 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 21...

Страница 29: ...w 48 HA01247 wire 180mm UL1015 14AWG blue 49 HA01248 wire 150mm UL1015 14AWG brown 50 HA02891 wire 3P 3P 400mm UL2547 28AWG 51 HA02892 wire 3P 3P 250mm UL2547 28AWG 52 HA02856 wire 3P 3P 160mm UL1007 24AWG 53 HA01394 row wire connector wiring 3P 3P 120 54 HA02328 wire 300mm UL1015 14AWG black 55 HA02329 wire 300mm UL1015 14AWG red 56 HA01198 wire 180mm UL1015 14AWG black 57 HA01251 wire 200mm UL10...

Страница 30: ...0 950mm 27 6kg 87 TD00324 transformer PT MIS1500 700W_115V 230V 88 HE00049 fan 24V 0 21A 80 80 25mm 360mm JST2P 89 NI00312 power switch button square 5 5 9 hole 2 8 2 8 black 90 HA00871 power cord European 3P LT 322 1 5 3C H05VV F 6FT LT 501 91 NI00218 cable tie black ALT 102SB 92 NA00116 PE bag 0 04t 170 100mm 93 NI01867 self adhere foot cushion 20 5 14 7 6mm SF 006 94 HJ00006 desiccant 30g 95 NA...

Страница 31: ... 4W 47KΩ M type R1 34 R2 34 123 RA00282 fixed resistor 1 4W 100KΩ M type R1 35 R2 35 124 RA00284 fixed resistor 1 4W 120KΩ M type R1 36 R2 36 125 RA00138 fixed resistor 1 2W 3 3KΩ M type R1 33 R2 33 126 RA00007 metal oxide film resistor 1W 22Ω P type R1 13 R1 14 R2 13 R2 14 127 RA00051 metal oxide film resistor 2W 5 6Ω P type R1 26 R2 26 128 RA00046 metal oxide film resistor 2W 2 2KΩ P type R1 11 ...

Страница 32: ... m circle red B1115 D1 4 D2 4 155 SA00002 high speed diode 1A 600V 1N4937 D1 11 D1 12 D2 11 D2 12 156 SA00205 zener diode 1 2W 3 9V D1 13 D1 14 D2 13 D2 14 157 HC00504 row wire header male 10P 2 54mm 180 J1 158 HC00172 row wire header male 3P 3 96mm 180 J2 159 HC00625 row wire header male 14P 2 5mm 180 160 HC00365 row wire header male 14P 2 54mm 180 C03 14AG1 J4 161 HC00076 row wire header male 2P...

Страница 33: ... 950mm 27 6kg 191 HC00034 connector NO 2700 2 54mm 6mm OPEN 192 HK02231 coupling P photosensitive resistanceφ5LLED 193 RH00020 photosensitive resistance VT90N1 194 SA00201 L E D φ5 red LI3330 A 195 NI02779 sleeve φ9 30mm 196 NI00274 sleeve φ9 1000mm 197 CB00217 electrolytic capacitor 470uF 50V φ10 20mm C1 198 RA00198 fixed resistor 1 4W 300Ω M type R1 4 R1 7 R2 4 R2 7 199 CB00009 electrolytic capa...

Страница 34: ...WG grey 225 HA02471 wire 360mm UL1015 14AWG white 226 HA01258 quick terminal wiring 380mm UL1015 14AWG grey 227 HK02070 PC board P MIS15IN1 228 HB01169 PCB MIS15 IN1 2 4 _VER040205 229 HC00110 MIC jack JY 6314 02 340 PJ1 230 HC00112 XLR MIC jack 99M 107SP 1 2 90 PUSH CN2 231 HC00111 XLR MIC jack 99M 108SP1 CN3 232 HA02893 wire 14P 14P 280mm UL2651 28AWG PH1 27mm CN1 233 HC00077 row wire header mal...

Страница 35: ...shion 250 8 1 0t MISTRAL1500_V1 0 250 MJ00061 Zn plated board 1 2135 1220 20 45kg 251 MI00427 fixed bracket PSA 3000 252 MJ00058 iron board 1 2135 1220 20 45kg 253 MG00111 screw pill 4 30 254 NA00279 clip chain bag 0 04t 100 150mm_V1 0 255 AD00012 twin adhesive 90 120mm_V1 0 256 HA01265 wire 400mm UL1015 14AWG green 257 NI00219 cable tie CV 075 white AST 145 K ...

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