If the amp is on, you should be able to press the RF deck "ON" button at the bottom right of the RF deck front panel, the LEDs and LCD should go dark, all relays should be released, and power supply fans should stop. The only visible LED is the green light on the power supply.
Press ON when the amp is off, and it turns on. When "off", only a small power supply (without fan) provides enough for the microcontroller to wake up on power button press or a number of other ways to turn the amp on. There are a few ways to turn the unit on besides the front panel button. Supplying 12V to a rear connector, pulling down a pin on the ACC connector, data from a PC to the USB host port, etc. If you're supplying 12V to the rear connector, it should turn the amp on until the 12V drops. Some people use the 12V RCA output on the K3 (also used to power the P3) to turn their amp on with the K3. 73 de Dick, K6KR -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Rick Stealey Sent: Monday, October 1, 2018 14:44 To: [email protected] Subject: [Elecraft] KPA1500 power aupply fan K2XT here. Greetings, We are installing K8DM's brand new KPA1500 here at my qth today replacing a KPA500. He runs the station remotely from VA; my QTH is in NJ. (I host the station for him). So, it is powered up and running. When not in use it appears as if (according to the manual) it needs to generate a small voltage/current to the rf deck to allow it to function. No problem, that makes sense. The problem is, there is a fan running in the power supply, and it is annoying! The remote station is in a spare bedroom and visiting guests will have to endure this noise. Plus, I'd like the equipment to go off when it is turned off. I don't want a fan running 24/365. Does the PS really generate that much heat that it needs a fan? This is not acceptable. Wayne, surely you didn't design it this way. Surely there is an option we set somewhere to disable the fan. What say, anyone? Rick K2XT ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
