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Electronic Timer Won't Shut Down Amp
At least that's what it appears...
In the old days these timers had a relay, but I know the new ones have no mechanical moving parts. The amp in question is "smart." When it receives an audio signal the LED on the on/off button changes from green to red. The amp is supposed to have power to it only for certain hours each day, controlled by this timer. But during the off cycle, the LED still glows red! I would expect it to be totally off when the timer so indicates. The bottom line is that I don't know if the amp is actually off. I seem to remember that one side of a connection is all some LED circuits need to operate, but don't know if this applies in this case. I'd appreciate your thoughts. Thanks. Frank |
Electronic Timer Won't Shut Down Amp
"frank1492" wrote in message
... At least that's what it appears... In the old days these timers had a relay, but I know the new ones have no mechanical moving parts. The amp in question is "smart." When it receives an audio signal the LED on the on/off button changes from green to red. The amp is supposed to have power to it only for certain hours each day, controlled by this timer. But during the off cycle, the LED still glows red! I would expect it to be totally off when the timer so indicates. The bottom line is that I don't know if the amp is actually off. I seem to remember that one side of a connection is all some LED circuits need to operate, but don't know if this applies in this case. I'd appreciate your thoughts. Thanks. Frank Plug a table lamp into the timer instead. See if it goes on and off. |
Electronic Timer Won't Shut Down Amp
On Dec 10, 10:15*am, "Bill" wrote:
"frank1492" wrote in message ... At least that's what it appears... * In the old days these timers had a relay, but I know the new ones have no mechanical moving parts. * The amp in question is "smart." When it receives an audio signal the LED on the on/off button changes from green to red. * The amp is supposed to have power to it only for certain hours each day, controlled by this timer. But during the off cycle, the LED still glows red! I would expect it to be totally off when the timer so indicates. * The bottom line is that I don't know if the amp is actually off. I seem to remember that one side of a connection is all some LED circuits need to operate, but don't know if this applies in this case. * *I'd appreciate your thoughts. Thanks. * * * * Frank Plug a table lamp into the timer instead. See if it goes on and off.- Hide quoted text - - Show quoted text - Put a Killawatt meter or VOM and see how much power it uses when ON versus when it's supposed to be off. It's possible it does power down, but the red LED still indicates it has not been manually shut off. |
Electronic Timer Won't Shut Down Amp
On 12/10/2011 08:55 AM, frank1492 wrote:
At least that's what it appears... In the old days these timers had a relay, but I know the new ones have no mechanical moving parts. The amp in question is "smart." When it receives an audio signal the LED on the on/off button changes from green to red. The amp is supposed to have power to it only for certain hours each day, controlled by this timer. But during the off cycle, the LED still glows red! I would expect it to be totally off when the timer so indicates. The bottom line is that I don't know if the amp is actually off. I seem to remember that one side of a connection is all some LED circuits need to operate, but don't know if this applies in this case. I'd appreciate your thoughts. Thanks. Frank Solid-state relays pass a little current when off. I encountered this problem when using them to control my holiday lights. LEDs will light with such small currents. I got around that problem by having at least one non-LED item (like incandescent or motor) on each circuit. Maybe that would work for you too (put a small light on the timer with the amp). You could try to see if the amp works when it's supposed to be off (try it twice in case your timer has the annoying "local on" feature like X10). -- 15 days until The winter celebration (Sunday December 25 2011 12:00 AM). Mark Lloyd http://notstupid.us "DISCLAIMER: If you find a posting or message from me offensive, inappropriate, or disruptive, please ignore it. If you don't know how to ignore a posting, complain to me and I will demonstrate." |
Electronic Timer Won't Shut Down Amp
So, tell us a bit more. What is "amp"?
-- Christopher A. Young Learn more about Jesus www.lds.org .. "frank1492" wrote in message ... At least that's what it appears... In the old days these timers had a relay, but I know the new ones have no mechanical moving parts. The amp in question is "smart." When it receives an audio signal the LED on the on/off button changes from green to red. The amp is supposed to have power to it only for certain hours each day, controlled by this timer. But during the off cycle, the LED still glows red! I would expect it to be totally off when the timer so indicates. The bottom line is that I don't know if the amp is actually off. I seem to remember that one side of a connection is all some LED circuits need to operate, but don't know if this applies in this case. I'd appreciate your thoughts. Thanks. Frank |
Electronic Timer Won't Shut Down Amp
I'm guessing the current it's passing lights the LED. Thanks for all
your ideas. Will check with meter, also try the bulb idea. Is it still possible to buy an electronic timer with the old-style mechanical relay? Thank you all! |
Electronic Timer Won't Shut Down Amp
On Dec 10, 10:57*am, frank1492 wrote:
I'm guessing the current it's passing lights the LED. Thanks for all your ideas. Will check with meter, also try the bulb idea. * * Is it still possible to buy an electronic timer with the old-style mechanical relay? * * Thank you all! if leakage is the problem, plug a small incandescent light into the timer along with the amp, that will provide a load for the leakage.. Mark |
Electronic Timer Won't Shut Down Amp
On Sat, 10 Dec 2011 09:55:47 -0500, frank1492
wrote: At least that's what it appears... In the old days these timers had a relay, but I know the new ones have no mechanical moving parts. The amp in question is "smart." When it receives an audio signal the LED on the on/off button changes from green to red. The amp is supposed to have power to it only for certain hours each day, controlled by this timer. But during the off cycle, the LED still glows red! I would expect it to be totally off when the timer so indicates. The bottom line is that I don't know if the amp is actually off. I seem to remember that one side of a connection is all some LED circuits need to operate, but don't know if this applies in this case. I'd appreciate your thoughts. Thanks. Frank I'm not sure exactly how it works, but if you put a CFL in a lamp, it will often flash a bit when the timer has it "off". Probably the same thing with your amp. |
Electronic Timer Won't Shut Down Amp
On 12/10/2011 10:53 AM, Stormin Mormon wrote:
So, tell us a bit more. What is "amp"? Amplifier. |
Electronic Timer Won't Shut Down Amp
On Dec 10, 9:55*am, frank1492 wrote:
At least that's what it appears... * *In the old days these timers had a relay, but I know the new ones have no mechanical moving parts. * *The amp in question is "smart." When it receives an audio signal the LED on the on/off button changes from green to red. * *The amp is supposed to have power to it only for certain hours each day, controlled by this timer. But during the off cycle, the LED still glows red! I would expect it to be totally off when the timer so indicates. * *The bottom line is that I don't know if the amp is actually off. I seem to remember that one side of a connection is all some LED circuits need to operate, but don't know if this applies in this case. * * I'd appreciate your thoughts. Thanks. * * * * *Frank Some of those electronic timers are never really all the way off. They require a path through whatever you are switching to make the electronics inside of them function.. Also if they see a reactive load some of them may not turn off at all, at timer that works fine with incandescent light for a load may not work using flourescent lamps. The solution to this is to either use a different timer or to isolate the timer from the load with a relay. Jimmie |
Electronic Timer Won't Shut Down Amp
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Electronic Timer Won't Shut Down Amp
frank1492 wrote: I'm guessing the current it's passing lights the LED. Thanks for all your ideas. Will check with meter, also try the bulb idea. Is it still possible to buy an electronic timer with the old-style mechanical relay? Thank you all! Hi, Some are. You can hear relay clicking when it is working. |
Electronic Timer Won't Shut Down Amp
I did isolate the timer with a relay. That solved the problem.
Thanks all for your many ideas! Frank |
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