Pin 1 showed positive DCv and when it changed to protect it kept switching to positive voltage to 0 on off a bunch of times
Amp will no longer turn on
I had got it to turn on and it started making a buzz near the blue outline (louder than the power supply buzz, sounds closer to maybe an arcing?), changed voltage from approx 15 to 14 and it started freaking out so I shut it off. Go to turn it on again, it will try and when it gets close to turning on it starts making the noise again and will not fully power on.
Also is the green the thermistor?
I had got it to turn on and it started making a buzz near the blue outline (louder than the power supply buzz, sounds closer to maybe an arcing?), changed voltage from approx 15 to 14 and it started freaking out so I shut it off. Go to turn it on again, it will try and when it gets close to turning on it starts making the noise again and will not fully power on.
Also is the green the thermistor?
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It does not, I tries to but does not fully turn on
I was able to get the relay to click once but it then went back to trying to start up
I believe that sound I heard is something shorting and discharging current preventing it from turning on
I was able to get the relay to click once but it then went back to trying to start up
I believe that sound I heard is something shorting and discharging current preventing it from turning on
I believe the power supply may be too weak to properly power it up as it can only output 3a max, looking into getting a new one soon, not sure if I want to use my pc power supply as I cannot current limit it or change voltage though
I don't know if you've tried that PC supply on amps before. Some work perfectly well and some shut down due to the inrush current of large amps.
Do you have a 2 ohm current limiting resistor or a 2 ohm resistor you use as a dummy load? Or large resistors of any (low) value?
Do you have a 2 ohm current limiting resistor or a 2 ohm resistor you use as a dummy load? Or large resistors of any (low) value?
Ive ran my 4 channel bridged on my pc power supply and never had any issues, I tried the xxx on it too when I first got the amp and thats when i found out it didnt have any sound
I think the pulsing of the remote and the input to the protection circuit could be complicating the troubleshooting.
Insert a 10 amp fuse in the B+ line and use the PC supply. You will still need to monitor the temperature of all heatsink mounted components when the amp is powered up.
Does the amp work any differently on the PC supply? Do you still see pulsing on the thermistor?
Insert a 10 amp fuse in the B+ line and use the PC supply. You will still need to monitor the temperature of all heatsink mounted components when the amp is powered up.
Does the amp work any differently on the PC supply? Do you still see pulsing on the thermistor?
Going to give an update here
Purchased an in-line fuse, installed it, installed an additional switch on remote wire, and rewired my pc power supply as the extra factory cables were getting annoying and upgraded +12v and ground wires to 14g from whatever was factory
Power supply has issue that it shuts itself off when it powers on an amp (you have to turn it on/off a few times for it to stay on then its completely fine, this works for my x3 4channel but not the xxx, this was occurring before the rewire) my thinking there's an internal current limiter that i have to do some research on if i can find and remove it
I brought in my other XXX amp so now we have a parts amp if needed down the road
Will update again when I get my power supply issue fixed, or I purchase a more powerful variable power supply
Purchased an in-line fuse, installed it, installed an additional switch on remote wire, and rewired my pc power supply as the extra factory cables were getting annoying and upgraded +12v and ground wires to 14g from whatever was factory
Power supply has issue that it shuts itself off when it powers on an amp (you have to turn it on/off a few times for it to stay on then its completely fine, this works for my x3 4channel but not the xxx, this was occurring before the rewire) my thinking there's an internal current limiter that i have to do some research on if i can find and remove it
I brought in my other XXX amp so now we have a parts amp if needed down the road
Will update again when I get my power supply issue fixed, or I purchase a more powerful variable power supply
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Unless you have an infinite budget, post links to any power supplies that you intend to buy.
Do you have any large dummy load resistors?
Can you power the main power wire with the large power supply and the remote with the small supply (grounds tied together)?
Do you have any large dummy load resistors?
Can you power the main power wire with the large power supply and the remote with the small supply (grounds tied together)?
https://www.ebay.com/itm/126306548027 Tenma 72-630A goes from 0-20v 0-40a however no current adjustment (I can just use a fuse on output right?)
https://batteryhookup.com/products/maisheng-mp3040d-professional-0-30v-0-40a-adjustable-power-supply expensive but seems to be the best
Are those just normal resistors? What resistance should I look for?
Do you mean like this? (P1 being pc power supply, P2 being the lab supply)
https://batteryhookup.com/products/maisheng-mp3040d-professional-0-30v-0-40a-adjustable-power-supply expensive but seems to be the best
Are those just normal resistors? What resistance should I look for?
Do you mean like this? (P1 being pc power supply, P2 being the lab supply)
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I've had good luck with Pyramid supplies. Astrons are my favorite but expensive. The following is available at parts express but not as cheap. You may be able to find it for less than PE but watch the shipping costs.
https://www.amazon.com/Pyramid-Converter-Adjustable-Voltage-PS52KX/dp/B0002BWC0I?th=1
https://www.parts-express.com/Pyramid-PS52KX-Power-Supply-12-15-VDC-40A-120-558?quantity=1
I prefer the 100w 2 ohm cylindrical resistors. You can also use them in series/parallel for dummy loads.
https://www.digikey.com/en/products/detail/vishay-huntington-electric-inc/FVT10006E2R000JE/257603
The small supply would only connect to ground and remote.
https://www.amazon.com/Pyramid-Converter-Adjustable-Voltage-PS52KX/dp/B0002BWC0I?th=1
https://www.parts-express.com/Pyramid-PS52KX-Power-Supply-12-15-VDC-40A-120-558?quantity=1
I prefer the 100w 2 ohm cylindrical resistors. You can also use them in series/parallel for dummy loads.
https://www.digikey.com/en/products/detail/vishay-huntington-electric-inc/FVT10006E2R000JE/257603
The small supply would only connect to ground and remote.
