Alto-DPA900-pwr-sm维修电路原理图.pdf

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Alto-DPA900-pwr-sm维修电路原理图.pdf

Version 2.0 MODEL: DPA 900/1500RadioFans.CN 收音机爱好者资料库1CONTENT1. Introduction.22. Specification33. Schematic Diagram44. PCB Layout.135. Test Procedure & Test Result.186. Exploded Views & Mechanical Parts List.237. BOM.26RadioFans.CN 收音机爱好者资料库21. IntroductionALTO MISTRAL amplifiers are series of innovative design power amplifiers. This series workunder high stability with great power supply in just 2-rack spaces. Air flow is from back to frontpanel to keep in a nice air circulation inside the Rack. The automatic fan, which affects machinestemperature includes various kinds of speed, therefore, this low-noise fan makes a good result incooling the heat from machines.MISTRAL amplifiers include 2 independent channels with separate protection system andpower supply. The independent protection system avoids opening circuit, short, wrong loading orover-heating. The special-designed protective system applies automatically restarting functionsupon 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 anyconditions.? Innovative design and high stability power amplifiers.? Fan-cooled AB class high power amplifier in 19”rack, 2Usize? Rugged amplifiers in a strong, compact chassis.? 2 independent channels with separate protection system and power supply? smart-designed protection system for auto re-operation after fault.? Auto-adjusting speed fan.? 4LEDs for operation/protection, limit, power on and clip? HIGH-CURRENT TOROIDAL TRANSFORMER DESIGNED FOR HIGH POWER AT 2Ohms with low noise.? Independent DC and thermal overload protection on each channel.? IEC standard power connectors.? Binding post and NEUTRIK SPEAKON outputs power connectors.? Balanced XLR inputs/ parallel outputs.RadioFans.CN 收音机爱好者资料库32. SpecificationOutput PowerDPA 900DPA 150020Hz-20KHz 0.1% THD, SCD MODE8Ohms per channel(EIAJ)190W300W4Ohms per channel (EIAJ)300W500WBridge MONO mode8Ohms ,1KHz, 0.1% THD600W1000WDistortion (SMPTE-IM)300 at 8 OhmsSignal to noise ,20Hz20KHz102dBVoltage Gain40 (32dB)Input sensitivity 4Ohms1VrmsInput clipping10Vrms(+22dB)Input impedance10kOhms unbalanced, 20k Ohms balanced 56(36dB)ControlsFront :AC switch ,CH1&CH2 Gain knobsRear :Limiter bridge selectorIndicators (1per channel)Power-on : Blue LEDOperation/Protection: Dual Color(green/red LED)Limit: Red LEDClip: Red LEDConnectors, each channelInput: Active balanced XLRParallel output: XLROutput: NEUTRIK speaker and binding postsCoolingContinuously variable-speed fan, rear-to front air flowLoad protectionOn/off muting, DC-fault load grounding relay, internalfault fuses.Power requirements200-240(100-120)VAC 50-60HzDimensions19”(48.3cm) rack mounting, 3.5”(8.9cm) tall (2rackspaces)15.9”(40cm)deep (rack mounting to rear support ears)weight12.9kg (Net)14.8kg (Net)RadioFans.CN 收音机爱好者资料库12345678ABCD87654321DCBA+1G2C1_164700uF/80V12R1_1322R 1W12R1_190.1R 3W21D1_61N4148+73V_AA2K1D1_151N4004GND12xMJL21193BCEQ1_1MJE1503012R1_21470R 3W12C1_1322nF/100V poly12C1_113.3nF/50 cer12C1_123.3nF/50 cer12R1_174R7 1W12R1_184R7 1WGND121D1_191N4148ECBQ1_2MJE1503121D1_101N4148BCEQ1_412R1_1422R 1W12R1_200.1R 3WGND1-73V_A2K1D1_171N40042K1D1_111N4937A2K1D1_121N493712C1_92.2nF/50 cer12C1_1022nF/50 cer2K1D1_13ZD5V6 1/2W12R1_9820R12R1_111K5 2W12R1_10820R12R1_121K5 2W2K1D1_14ZD5V6 1/2W21D1_71N4148Vic+2K1D1_3ZD15V1.3W+1G2C1_8220uF/25VGND112R1_32100RGND1Vic-12C1_556pF/50 cer12R1_310K12C1_727pF/50 cer12R1_612KSPEAKERS BUS12R1_5330R12C1_647uF/16NPGND112R1_304K712R1_314K7GND1CH1 GAIN+1G2C1_2747uF/25V2K1D1_8ZD15V1.3W+1G2C1_4220uF/25VGND112C1_25100pF/50 cer+12C1_2647uF/25V12C1_3100pF/50 cer+12C1_2310uF/50VGND11G2C1_2410uF/50V12R1_8NTC 50R112233R1_16TRIMMER 100R32U1_1ANJM4580L567U1_1BNJM4580L84U1_1CNJM4580LVic+Vic-BECQ1_3112233R1_293P-2.5MIS9-CH1 SchTitelSizeFile:Date:Drawn By:SheetRevisionModel No:16-Mar-2004C C LINALTO MISTRAL1500-CH1 DRIVE32ofMISTRAL1500VER040302A2321U2ANJM4580L12R1_424K7 1/8W12R1_414K7 1/8W1234D1_9W2-04GND112R1_2547R4112233U1_2VTL5C2GND1(FTR VT90N1 VACTEC+)GND1CH1 INSERT OUTCH1 INSERT IN1122334455667889910101111121213131414J4HEADER 7X2GND1GND112L1_12uH 10A12R1_265R6 2W12R1_2210R 3W12C1_2100nF/250V polyGND1CH1 OUTPUT1+1-GND1TOSPEAKON PCB12R1_36120KC1_147uF/100V21D1_21N400412R1_39PTC 65RCH1 PHOTO COUPLER-15V+15VGND112R1_3712K(1.5A 200V)(1.5A 200V)+1G2C1_154700uF/80V12R1_7330R12R1_4330R11A6A6A12C1_143.3nF/100 poly12R1_15150R02A02A84U2CNJM4580L+15V-15V12D1_183mm RED LEDCH1 LIM SW1CH1_LIM_SW212D1_213mm YELLOW LED1122J1 6CON212R1_2710K12R1_110K12R1_210K12R1_2810KCH1 INCH1 IN-CH1 INCH1 IN-CH2 INCH2 IN-CH1 BRIDGE SWITCHCH2 BRIDGECH1 LIM SW1CH1 LIM SW2CH2_LIM_SW1CH2_LIM_SW2CH1 BRIDGE SWITCHPout=418W RMS 4 Ohm12D1_163mm GREEN LEDVic-Vic+12R1_333K3 1/2WOPERATING LEDOUTPUT 1OUTPUT112F1_15A12F1_25AOUTPUT 112R1_3447K12R1_3810K100R10K21D1_5ZD15V1.3W12D1_45mm RED LEDGND1GND1+73V_A-73V_A12R1_35100K12R1_406K8BCEQ1_6MPSA42BECQ1_5MPSA92Vic+Vic-GND1CLIP112233J1_4CN-PCB6.3112233J1 5CN-PCB6.31234D1_20W2-04112233J1 7CN-PCB6.3112233J1_8CN-PCB6.3112233J1 9CN-PCB6.3112233J1_10CN-PCB6.3V+V-AC1GND12J1_11CON212J2_11CON2GND1CH1 INCH2 INfor PBM8RadioFans.CN 收音机爱好者资料库12345678ABCD87654321DCBA12C1_164700uF/80V12R1_1322R 1W12R1_190.1R 3W12R1_230.1R 3WBECQ1_721D1_61N4148+73V_AA2K1D1_151N4004GND12xMJL21193BCEQ1_1MJE1503012R1_21470R 3W12C1_1322nF/100V poly12C1_113.3nF/50 cer12C1_123.3nF/50 cer12R1_174R7 1W12R1_184R7 1WGND121D1_191N4148ECBQ1_2MJE1503121D1_101N4148BCEQ1_4BCEQ1_82R1_1422R 1W2R1_200.1R 3W2R1_240.1R 3WGND1-73V_AA2K1D1_171N40042K1D1_111N4937A2K1D1_121N493712C1_92.2nF/50 cer12C1_1022nF/50 cer21D1_13ZD5V6 1/2W12R1_9820R12R1_112K2 2W12R1_10820R12R1_122K2 2W21D1_14ZD5V6 1/2W21D1_71N4148Vic+21D1_3ZD15V1.3W12C1_8220uF/25VGND112R1_32100RGND1Vic-12C1_556pF/50 cer12R1_310K12C1_727pF/50 cer12R1_612KSPEAKERS BUS12R1_5330R12C1_647uF/16NPGND112R1_304K712R1_314K7GND1CH1 GAIN12C1_2747uF/25V2K1D1_8ZD15V1.3W12C1_4220uF/25VGND112C1_25100pF/50 cer12C1_2647uF/25V12C1_3100pF/50 cer12C1_2310uF/50VGND112C1_2410uF/50V12R1_8NTC 50R112233R1_16TRIMMER 100R32U1_1ANJM4580L567U1_1BNJM4580L84U1_1CNJM4580LVic+Vic-BECQ1_3112233R1_293P-2.5MIS15-CH1.SchTitelSizeFile:Date:Drawn By:SheetRevisionModel No:2-Mar-2004 C.C.LINALTO MISTRAL1500-CH1 DRIVE32ofMISTRAL1500VER040302A2321U2ANJM4580L12R1_424K7 1/8W12R1_414K7 1/8W1234D1_9W2-04GND112R1_2547R412233U1_2VTL5C2GND1(FTR VT90N1 VACTEC+)GND1CH1 INSERT OUTCH1 INSERT IN112233445566778899101011112121331414J4HEADER 7X2GND1GND112L1_12uH 10A12R1_265R6 2W12R1_2210R 3W12C1_2100nF/250V polyGND1CH1 OUTPUT1+1-GND1TOSPEAKON PCB12R1_36120KC1_147uF/100V21D1_21N400412R1 39PTC 65RCH1 PHOTO COUPLER-15V+15VGND112R1_3712K(1.5A 200V)(1.5A 200V)12C1_154700uF/80V12R1_7330R12R1_4330R11A6A6A12C1_143.3nF/100 poly12R1_15150R02A02A84U2CNJM4580L+15V-15V12D1_183mm RED LEDCH1_LIM_SW1CH1 LIM SW212D1_213mm YELLOW LED1122J1_6CON212R1_2710K12R1_110K12R1_210K12R1_2810KCH1 IN+CH1 IN-CH1 IN+CH1 IN-CH2 IN+CH2 IN-CH1 BRIDGE SWITCHCH2 BRIDGECH1_LIM_SW1CH1_LIM_SW2CH2_LIM_SW1CH2_LIM_SW2CH1 BRIDGE SWITCHPout=418W RMS 4 Ohm12D1_163mm GREEN LEDVic-Vic+12R1_333K3 1/2WOPERATING LEDOUTPUT 1OUTPUT112F1_15A12F1_25AOUTPUT 112R1_3447K12R1_3810K100R10K21D1_5ZD15V1.3W12D1_45mm RED LEDGND1GND1+73V_A-73V_A12R1_35100K12R1_406K8BCEQ1_6MPSA42BECQ1_5MPSA92Vic+Vic-GND1CLIP112233J1 4CN-PCB6.3112233J1 5CN-PCB6.31234D1_20W2-04112233J1_7CN-PCB6.3112233J1 8CN-PCB6.3112233J1 9CN-PCB6.3112233J1 10CN-PCB6.3V+V-AC1GNDRadioFans.CN 收音机爱好者资料库12345678ABCD87654321DCBA12C1_164700uF/80V12R1_1322R 1W12R1_190.1R 3W12R1_230.1R 3WBECQ1_721D1_61N4148+73V_AA2K1D1_151N4004GND12xMJL21193BCEQ1_1MJE1503012R1_21470R 3W12C1_1322nF/100V poly12C1_113.3nF/50 cer12C1_123.3nF/50 cer12R1_174R7 1W12R1_184R7 1WGND121D1_191N4148ECBQ1_2MJE1503121D1_101N4148BCEQ1_4BCEQ1_82R1_1422R 1W2R1_200.1R 3W2R1_240.1R 3WGND1-73V_AA2K1D1_171N40042K1D1_111N4937A2K1D1_121N493712C1_92.2nF/50 cer12C1_1022nF/50 cer21D1_13ZD5V6 1/2W12R1_9820R12R1_112K2 2W12R1_10820R12R1_122K2 2W21D1_14ZD5V6 1/2W21D1_71N4148Vic+21D1_3ZD15V1.3W12C1_8220uF/25VGND112R1_32100RGND1Vic-12C1_556pF/50 cer12R1_310K12C1_727pF/50 cer12R1_612KSPEAKERS BUS12R1_5330R12C1_647uF/16NPGND112R1_304K712R1_314K7GND1CH1 GAIN12C1_2747uF/25V2K1D1_8ZD15V1.3W12C1_4220uF/25VGND112C1_25100pF/50 cer12C1_2647uF/25V12C1_3100pF/50 cer12C1_2310uF/50VGND112C1_2410uF/50V12R1_8NTC 50R112233R1_16TRIMMER 100R32U1_1ANJM4580L567U1_1BNJM4580L84U1_1CNJM4580LVic+Vic-BECQ1_3112233R1_293P-2.5MIS15-CH1.SchTitelSizeFile:Date:Drawn By:SheetRevisionModel No:2-Mar-2004 C.C.LINALTO MISTRAL1500-CH1 DRIVE32ofMISTRAL1500VER040302A2321U2ANJM4580L12R1_424K7 1/8W12R1_414K7 1/8W1234D1_9W2-04GND112R1_2547R412233U1_2VTL5C2GND1(FTR VT90N1 VACTEC+)GND1CH1 INSERT OUTCH1 INSERT IN112233445566778899101011112121331414J4HEADER 7X2GND1GND112L1_12uH 10A12R1_265R6 2W12R1_2210R 3W12C1_2100nF/250V polyGND1CH1 OUTPUT1+1-GND1TOSPEAKON PCB12R1_36120KC1_147uF/100V21D1_21N400412R1 39PTC 65RCH1 PHOTO COUPLER-15V+15VGND112R1_3712K(1.5A 200V)(1.5A 200V)12C1_154700uF/80V12R1_7330R12R1_4330R11A6A6A12C1_143.3nF/100 poly12R1_15150R02A02A84U2CNJM4580L+15V-15V12D1_183mm RED LEDCH1_LIM_SW1CH1 LIM SW212D1_213mm YELLOW LED1122J1_6CON212R1_2710K12R1_110K12R1_210K12R1_2810KCH1 IN+CH1 IN-CH1 IN+CH1 IN-CH2 IN+CH2 IN-CH1 BRIDGE SWITCHCH2 BRIDGECH1_LIM_SW1CH1_LIM_SW2CH2_LIM_SW1CH2_LIM_SW2CH1 BRIDGE SWITCHPout=418W RMS 4 Ohm12D1_163mm GREEN LEDVic-Vic+12R1_333K3 1/2WOPERATING LEDOUTPUT 1OUTPUT112F1_15A12F1_25AOUTPUT 112R1_3447K12R1_3810K100R10K21D1_5ZD15V1.3W12D1_45mm RED LEDGND1GND1+73V_A-73V_A12R1_35100K12R1_406K8BCEQ1_6MPSA42BECQ1_5MPSA92Vic+Vic-GND1CLIP112233J1 4CN-PCB6.3112233J1 5CN-PCB6.31234D1_20W2-04112233J1_7CN-PCB6.3112233J1 8CN-PCB6.3112233J1 9CN-PCB6.3112233J1 10CN-PCB6.3V+V-AC1GNDRadioFans.CN 收音机爱好者资料库12345678ABCD87654321DCBA12C2_164700uF/80V12R2_1322R 1W12R2_190.1R 3W12R2_230.1R 3WBECQ2_721D2_61N4148+73V_BA2K1D2_151N4004GND12xMJL21193BCEQ2_1MJE1503012R2_21470R 3W12C2_1322nF/100V poly12C2_113.3nF/50 cer12C2_123.3nF/50 cer12R2_174R7 1W12R2_184R7 1WGND121D2_191N4148ECBQ2_2MJE1503121D2_101N4148BCEQ2_4BCEQ2_82R2_1422R 1W2R2_200.1R 3W2R2_240.1R 3WGND1-73V_BA2K1D2_171N40042K1D2_111N4937A2K1D2_121N493712C2_92.2nF/50 cer12C2_1022nF/50 cer21D2_13ZD5V6 1/2W12R2_9820R12R2_112K2 2W12R2_10820R12R2_122K2 2W21D2_14ZD5V6 1/2W21D2_71N4148Vic2+21D2_3ZD15V1.3W12C2_8220uF/25VGND11234D2_20W2-0412R2_32100RGND1Vic2-12C2_556pF/50 cer12R2_310K12C2_727pF/50 cer12R2_612KSPEAKERS BUS12R2_5330R12C2_647uF/16NPGND112R2_304K712R2_314K7GND1CH1 GAIN12C2_2747uF/25V2K1D2_8ZD15V1.3W12C2_4220uF/25VGND112C2_25100pF/50 cer12C2_2647uF/25V12C2_3100pF/50 cer12C2_2310uF/50VGND112C2_2410uF/50V12R2_8NTC 50R112233R2_16TRIMMER 100R32U2_1ANJM4580L567U2_1BNJM4580LBECQ2_3112233R2_293P-2.5MIS15-CH2.SchTitelSizeFile:Date:Drawn By:SheetRevisionModel No:2-Mar-2004 C.C.LINALTO MISTRAL1500-CH1 DRIVE33ofMISTRAL1500VER040302A2567U2BNJM4580L12R2_424K7 1/8W12R2_414K7 1/8W1234D2_9W2-04GND112R2_2547R412233U2_2VTL5C2GND1(FTR VT90N1 VACTEC+)GND1CH2 INSERT OUTCH2 INSERT IN12L2_12uH 10A12R2_265R6 2W12R2_2210R 3W12C2_2100nF/250V polyGND1CH1 OUTPUT1+1-GND1TOSPEAKON PCB12R2_36120K12C2_147uF/100V21D2_21N400412R2 39PTC 65RCH1 PHOTO COUPLER-15V+15VGND1(1.5A 200V)(1.5A 200V)12C2_154700uF/80V12R2_7330R12R2_4330R11A6A6A12C2_143.3nF/100 poly12R2_15150R02A02A12D2_183mm RED LEDCH2_LIM_SW1CH2 LIM SW212D2_213mm YELLOW LED1122J2_6CON212R2_2710K12R2_110K12R2_210K12R2_2810KCH2 IN+CH2 IN-CH2 BRIDGEPout=418W RMS 4 Ohm12D2_163mm GREEN LEDVic2-Vic2+12R2_333K3 1/2WOPERATING LEDOUTPUT 2OUTPUT212F2_15A12F2_25AOUTPUT 212R2_3447K12R2_3810K100R10K21D2_5ZD15V1.3W12D2_45mm RED LEDGND1GND1+73V_B-73V_B12R2_35100K12R2_406K8BCEQ2_6MPSA42BECQ2_5MPSA92Vic2+Vic2-GND1CLIP84U2_1CNJM4580LVic2+Vic2-112233J2 4CN-PCB6.3112233J2 5CN-PCB6.3112233J2_7CN-PCB6.3112233J2 8CN-PCB6.3112233J2 9CN-PCB6.3112233J2 10CN-PCB6.3V+V-AC1GNDRadioFans.CN 收音机爱好者资料库1234ABCD4321DCBA1234567891011121314CN1HEADER 7X22134CN3CH1-XLR-IN2134CN2CH1-LINK-OUT123SW1ABRIDGE456PSW1BBRIDGE123SW2ALIMITER456PSW2BLIMITER2134PJ1CH1-JACK-IN2134CN5CH2-XLR-IN2134CN4CH2-LINK-OUT2134PJ2CH2-JACK-IN123CN7CON3123CN6CON3123CN8CON3123CN9CON3MIS15IN.SchTitelSizeFile:Date:Drawn By:SheetRevisionModel No:8-Mar-2004 C.C.LINALTO : MISTRAL150011ofMISTRAL1500VER040204A3RadioFans.CN 收音机爱好者资料库1234ABCD4321DCBA12D2_303mm YELLOW LED12D2_33mm RED LED12D2_293mm BLUE LEDLIMITERCLIPON/PROTECTION12D2_13mm GREEN LEDPOWER ON12D1_303mm YELLOW LED12D1_33mm RED LED12D1_293mm BLUE LEDLIMITERCLIPON/PROTECTION12D1_13mm GREEN LEDPOWER ONVR1_1B50KVR2_1B50K123CN1_13P2 5123CN2_13P2 51234567891011121314CN3CON14MIS15FP.SchTitelSizeFile:Date:Drawn By:SheetRevisionModel No:8-Mar-2004 C.C.LINALTO : MISTRAL150011ofMISTRAL1500VER040204A3RadioFans.CN 收音机爱好者资料库1234ABCD4321DCBA112233J2HEADER 31G2C1470uF/35VININGGOUTOUTU1LM317T12R13K312R247R12C2100nF/50 cer12C310uF/63+24VFAN12R3NTC 100R(1.5A 200V)12V12V12C4470uF/35V1G2C5470uF/35V12R50R12R43K312D23mm GREEN LEDPOWER ON LED12C610uF/50112233J3CON31122334455667788991010J1HEADER 5X2CH1 INSERT OUTCH1 INSERT INCH2 INSERT OUTCH2 INSERT INGND1GND1+15V-15VGNDFGNDFGND1MIS15MIS15-CH1 SCHMIS15MIS15-CH2 SCHMIS15-FAN.SchTitelSizeFile:Date:Drawn By:SheetRevisionModel No:2-Mar-2004 C.C.LINALTO MISTRAL1500 FAN31ofMISTRAL1500VER040302A4+15V-15V1234D1W2-04RadioFans.CN 收音机爱好者资料库RadioFans.CN 收音机爱好者资料库RadioFans.CN 收音机爱好者资料库4.PCB LayoutMIS15FPTop overlayBottom layerRadioFans.CN 收音机爱好者资料库MIS151N1Top overlayBottom layerMIS151N2RadioFans.CN 收音机爱好者资料库RadioFans.CN 收音机爱好者资料库RadioFans.CN 收音机爱好者资料库RadioFans.CN 收音机爱好者资料库5. Test Procedure & Test Result DPA900/1500 TEST PROCEDUREDSP TestInstruments1. DMM2. Audio Analyze unit (VP-7724)3. Oscillograph4. PC with RS232 portTest ProcedureStep1: Visual checkVisually check if the cosmetic of the amplifier and assembly are OK.Step2: Set up? Turn off power? Set the output sine wave signal of the VP-7724 is 0.775V(0dB)/1KHz, then connect outputof VP-7724 with input of CH1 of amplifier.? Connect the DMM with output of CH1 of amplifier? Connect the CH1 of oscillograph with CH1 of amplifier, connect the CH2 of oscillographwith CH2 of amplifier? Connect the 4 Ohm load with CH1 and CH2 of amplifier respectively.? Turn the volume knob counter clockwise fully.Step 3: Power supply test? Plug the amplifier into mains, turn on the amplifier? Make sure all the voltage values are correct, then turn off power.Step 4: DSP Test4.1 press the “ENTER” and “SEL” at the same time. The unit will enter the test modal andcheck as following:a. All LEDs will light up in sequence.b. The display will show “8.8” .4.2 Press the “ENTER” and “SEL” at the same time.a. Press “UP”, the display will show “1”.b. Press “DOWN”, the display will show “2”.c. Press “ENTER”, the display will show “3”.d. Press “SEL”, the display will show “4”.Step5: Test EEPROM1. Press “ENTER” and “SEL” again, the LED (HUM CANCEL) should be light up. After waitabout 50 seconds, check as following:a. If the display show “01” , the test is okb. If the display show “E1”, the test fails.RadioFans.CN 收音机爱好者资料库Step6: Test RAM1. Press “ENTER” and “SEL”

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