Alto ELVIS Series Service Manual
Active speaker cabinet
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Also See for ELVIS Series:
- User manual (14 pages) ,
- User manual (7 pages) ,
- User manual (14 pages)
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Summary of Contents for Alto ELVIS Series
- Page 1 Service Manual ELVIS ACTIVE SPEAKER CABINET MODEL: ELVIS10A/ELVIS12A/ELVIS15A/ ELVIS12MA/ELVIS12SA/ELVIS15SA www.altoproaudio.com Version 1.0...
- Page 2 CONTENTS 1. Warning ................................2 2. Technical Specification & Transistor Packages .................... 3 3. Test Procedure & Setting ..........................4-6 4. Schematic Diagram ............................7-17 5. Spare Part List ..............................18...
- Page 3 1. Warnning Service must be carried out by ALTO qualified personnel only. Unqualified service personnel used in the warranty time of the product, produce a falling of the warranty. Schematic diagram and part list of the devices may be subject to change without immediate notice.
- Page 4 2. Technical Specification & Thansistor Packages ELVIS10A ELVIS12A ELVIS15A ELVIS12MA Output Power IHF 150Watt IHF 250Watt IHF 350Watt IHF 250Watt IHF Output Power RMS 120Watt RMS 180Watt RMS 250Watt RMS 180Watt RMS Max SPL at 1mt 117.5 dB ( IHF Power ) 121 dB ( IHF Power ) 123 dB ( IHF Power ) 121 dB ( IHF Power )
- Page 5 3. Test procedures & Setting CAUTION Before removing or installing the Power amplifier, switch off and disconnect the power cord from the AC mains socket. When you have visible the components, discharge the capacitor before to start the maintenance. When you connect the probe to the output of amplifier, insulated the earth of the oscilloscope, to prevent short circuit during the test. The Power Amplifier work in Class H and use a dual bipolar rail configuration, one low rail(+/-Vcc1)RMS power and second high rail (+/-Vcc2) IHF power.
- Page 6 MAIN SETUP Connect the VARIAC set at 0VAC from the Mains AC voltage and the power amplifier under test and use a power cord with ground connected. Turn full anticlockwise the knob of Main Volume. Set the EQ filter, Low-Mid-High in central position. Connect the Function Generator to the Line Input(Combo) and set at 1kHz/0.775V.
- Page 7 SUPPLY TEST ELVIS 10 TRANSFORMER-Primary 230VAC/50Hz; ... VA-... A Secondary low rail ...V-0-...VAC; high rail ...V-0-...VAC DC SUPPLIES: +VDC2 on Q5 - TIP36C-emitter pin3 value+..V +VDC1 on D9 - UF50 anodo value+..V pin3 value+15V pin3 value -15V - VDC1 on D8 - UF50 anodo value -..V - VDC2 on Q7 -TIP35C-emitter pin3 value -..V ELVIS 12...
- Page 8 4. Circuit Board & Schematic Diagram P-Elvis-Xover Botton layer Top layer...
- Page 9 P-Elvis-PRE Botton layer Top silkscreen overlay...
- Page 10 Top layer...
- Page 11 P-Elvis-AMP Botton layer Top layer...
- Page 12 Top silkscreen overlay...
- Page 13 ELVIS PRE 150W...
- Page 14 ELVIS AMP 150W...
- Page 15 ELVIS PRE 250W...
- Page 16 ELVIS AMP 250W...
- Page 17 ELVIS PRE 350W...
- Page 18 ELVIS AMP 350W...
- Page 19 5. Spare Part List ELVIS 10-ALTO Description Specification Quantity Item Part NO Remark K-speaker - bass HK03073 10" 80W 6ohm ELVIS 10 HG00081 Tweeter head PA-D597 P-AUDIO 8ohm Black-plated screw - T head MG00350 M5*30 Inner carton (no printed) ELVIS 10" speaker...
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