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Powersoft K3, K20, M50Q (Part II)
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<blockquote data-quote="Franz Francis" data-source="post: 55390" data-attributes="member: 551"><p>Re: Powersoft Digam K3, K20, M50Q (Part 2e)</p><p></p><p>Taken from the servic manual...</p><p></p><p><span style="font-family: 'ArialMT'"><span style="font-size: 10px"><span style="font-family: 'ArialMT'"><span style="font-size: 10px"><p style="text-align: left">To keep the amplifier between the correct range of working temperature the KSeries amps has two fans controlled by NTC sensors and microprocessor.The fan working state is: The fan speed rises up when the amplifier internal temperature rises</p></span></span></span></span></p><p style="text-align: left"><span style="font-family: 'ArialMT'"><span style="font-size: 10px"><span style="font-family: 'ArialMT'"><span style="font-size: 10px">- About half second full speed run at power up.</p></span></span></span></span></p><p style="text-align: left"><span style="font-family: 'ArialMT'"><span style="font-size: 10px"><span style="font-family: 'ArialMT'"><span style="font-size: 10px">- Without input signal with an environmental temperature of 18°-20° the fan does not run</p></span></span></span></span></p><p style="text-align: left"><span style="font-family: 'ArialMT'"><span style="font-size: 10px"><span style="font-family: 'ArialMT'"><span style="font-size: 10px">- Low speed run when the amp reaches about 30°C.</p></span></span></span></span></p><p style="text-align: left"><span style="font-family: 'ArialMT'"><span style="font-size: 10px"><span style="font-family: 'ArialMT'"><span style="font-size: 10px">- With environmental temperature at about 18-20ç and standard music program the amplifier internal temperature should be about 40°-42° and the fans should run at about 1/3 speed.</p></span></span></span></span></p><p style="text-align: left"><span style="font-family: 'ArialMT'"><span style="font-size: 10px"><span style="font-family: 'ArialMT'"><span style="font-size: 10px">If one of the fans does not run (faulty fan or fan blocked from any external object) with environmental temperature of about 18°-20° and standard input signal the amplifier internal, temperature stabilizes at about 55°C.</p></span></span></span></span></p><p style="text-align: left"><span style="font-family: 'ArialMT'"><span style="font-size: 10px"><span style="font-family: 'ArialMT'"><span style="font-size: 10px">At about 55°C amplifier internal temperature the fans should run at about half speed, at about 85°C they should run at full speed. If one or both the fans are not working (for a fan fault or fan blocked from any external object) it's possible to have an amplifier over-temperature in few minutes.</p><p>Franz</span></span></span></span></p></blockquote><p></p>
[QUOTE="Franz Francis, post: 55390, member: 551"] Re: Powersoft Digam K3, K20, M50Q (Part 2e) Taken from the servic manual... [FONT=ArialMT][SIZE=2][FONT=ArialMT][SIZE=2][LEFT]To keep the amplifier between the correct range of working temperature the KSeries amps has two fans controlled by NTC sensors and microprocessor.The fan working state is: The fan speed rises up when the amplifier internal temperature rises - About half second full speed run at power up. - Without input signal with an environmental temperature of 18°-20° the fan does not run - Low speed run when the amp reaches about 30°C. - With environmental temperature at about 18-20ç and standard music program the amplifier internal temperature should be about 40°-42° and the fans should run at about 1/3 speed. If one of the fans does not run (faulty fan or fan blocked from any external object) with environmental temperature of about 18°-20° and standard input signal the amplifier internal, temperature stabilizes at about 55°C. At about 55°C amplifier internal temperature the fans should run at about half speed, at about 85°C they should run at full speed. If one or both the fans are not working (for a fan fault or fan blocked from any external object) it's possible to have an amplifier over-temperature in few minutes.[/LEFT] Franz[/SIZE][/FONT][/SIZE][/FONT] [/QUOTE]
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