Amplifier models overheat. When you give power it gives 12 volts. And. It works on red, the green light is not on. We couldn't figure it out. 23 people looked at it before us, the masters looked at it. But we are trying to deal with it somehow. We couldn't get the green light to work and I couldn't get it to work. Can you help us with this? Respects.
Definitely better than "Help" posted a couple days ago. 🙄
@ Tarkan: way too poor information to provide any useful answer
At least, get the schematic and/or Service Manual, and post it here.
Without that ... impossible.
In any case, that 23 Techs tried, including "masters", means it is well beyond repair.
Sorry.
@ Tarkan: way too poor information to provide any useful answer
At least, get the schematic and/or Service Manual, and post it here.
Without that ... impossible.
In any case, that 23 Techs tried, including "masters", means it is well beyond repair.
Sorry.
Not much worse than Tiefbassuebertr's post title 😉Next time, try a longer title - it will get better attention....
//
Really better Sound through use of additional Voltage Regulator in NAIM Audio's Chrome Bumper Power Amp NAP250 (compared with NAP160/NAP110)?
😄😄😄
I guess no one liked his first post on the same thing.
https://www.diyaudio.com/community/...mfiden-goersel-foto-lazim-elinde-olan.408310/
Maybe it should be blended into this one.
https://www.diyaudio.com/community/...mfiden-goersel-foto-lazim-elinde-olan.408310/
Maybe it should be blended into this one.
I bought this amplifier as a practice amplifier and it has been tested by 3 masters and the MOSFETs heat up immediately within 5 seconds and reach burning temperature. 2 10k resistors were missing, they were installed, we managed to turn on the red light in front of the integrated circuit, but there is still a short circuit, we could not find the schematic in the amplifier anywhere and there is no copy of the amplifier in any way. I would be very happy if you could find it and post it here. If you can find it in the same lecture hall, at least we can see the inside, friends. That's how we can make progress. I would be very happy if you could help me with this issue in general. Mosfets were heating up within 5 seconds. Normally only when you plug in resistors. 8 millivolts appear on the far right leg. So the integrated mosfet does not turn on. So there is a short circuit somewhere, we couldn't find it. We don't know if they replaced any other parts before us. Because it's on the light bulb. It doesn't say what is what. We couldn't find the data sheet or schema either. We misspelled 23 technicians. 3 masters visited. I made a typo there. An amplifier with 3 masters.Definitely better than "Help" posted a couple days ago. 🙄
@ Tarkan: way too poor information to provide any useful answer
At least, get the schematic and/or Service Manual, and post it here.
Without that ... impossible.
In any case, that 23 Techs tried, including "masters", means it is well beyond repair.
Sorry.
At amateur level. I'm working though. I bought this as a practice amplifier, but our masters here have been consulting for 3 days and a week. We are trying to move forward by being solution-oriented. We couldn't find any data schema or anything identical to the bulb. If we find it, we can at least compare it and move forward towards a solution. I thought maybe there was this emphysema on foreign sites and we could find the diagram or find the data pair. I have a unit ut89x multimeter. There is only a multimeter.How much experience do you have with electronics repair?
What test equipment do you have?
Which parts that are normally clamped to the heatsink get hottest the quickest?
How much current does it draw when you power it up?
Yes, thank you very much, thank you. Because I'm a bit of a novice when it comes to form. Create the exact topic. I couldn't share it, my English is very poor. Thank you very much again.Next time, try a longer title - it will get better attention....
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In general, my request from you is that I would be very happy if we could find the same amplifier or data pair. At least if we find the same visually for us. It provides the opportunity. There is not even one such amplifier in Turkey. There is nothing like it at all. In foreign videos, it is called Hifonics Thor IX. On the amplifier, it says Hifonics Son of Thow. If we can find the data sheet or schematic, or the same, I would be very happy. I searched a lot and could not find it.
It has TL 494 integrated circuit. There are 6 50 n 06 mosfets. There are 2 tipc35 transfers and tipc36 transistors. The interesting part is that we haven't passed the power stage yet. We couldn't get past the transformer side. I couldn't get the amplifier to work after getting the green light. We've been trying for almost a week. There is a short circuit somewhere, we couldn't figure it out somewhere. Did they install a different part? We don't know what happened. It doesn't say what is which part on the amplifier. We are trying to experiment by making the resistors smaller and larger. We still couldn't get past the red error light on red. It shows 8 millivolts on the rightmost leg of the plagues. Is it now saying that the integrated circuit is not turning on? I changed the integrated circuit the first time and changed it the same way again. There are small integrated circuits on the left and right side of the integrated circuit, a1266. I changed them, there is a c3194, there is an a1266 under the integrated circuit, there are 3 in total. In general, I am looking for a solution and a way out. I would be very happy if you have a chance to find one and send it to me. I could not find a data sheet for the same amplifier.
Thank you very much for your interest and concern, but it would be better for me if there were visuals, photographs or a data sheet. It would be great if there was a photo and a photo of the inside of the amplifier.
Hifonics son of thor 250x2 channel.
I think it is called Hifonics Thor xi in other countries.
Hifonics son of thor 250x2 channel.
I think it is called Hifonics Thor xi in other countries.
I'm willing to try to help but you need to provide very specific details and answer ALL questions asked.
When repairing car amps, you rarely get an exact schematic diagram. When you understand amps, you can get through most amps without one. It's a bit like a good mechanic. In general, he won't need a full service manual for the vehicle to diagnose a bad water pump and replace it.
I think the first hing you need to do is to find a better translator. Try a different translator (try several). Convert from your language to English and then back to your language to see which translator gets the closest to the original statement after the second translation.
You need to better familiarize yourself with the proper terms and components. Read the following page, in its entirety. Your willingness to actually read that page (and open all links) will tell me how badly you want to get this amp repaired. If you get through that page in less than about 2 hours, you are probably not serious about doing the hard work it will take to repair this amp.
https://www.bcae1.com/repairbasicsforbcae1/repairbasics.htm
What is a 'master'? Be specific.
When repairing car amps, you rarely get an exact schematic diagram. When you understand amps, you can get through most amps without one. It's a bit like a good mechanic. In general, he won't need a full service manual for the vehicle to diagnose a bad water pump and replace it.
I think the first hing you need to do is to find a better translator. Try a different translator (try several). Convert from your language to English and then back to your language to see which translator gets the closest to the original statement after the second translation.
You need to better familiarize yourself with the proper terms and components. Read the following page, in its entirety. Your willingness to actually read that page (and open all links) will tell me how badly you want to get this amp repaired. If you get through that page in less than about 2 hours, you are probably not serious about doing the hard work it will take to repair this amp.
https://www.bcae1.com/repairbasicsforbcae1/repairbasics.htm
What is a 'master'? Be specific.
I'm currently reviewing your forum and page. It looks very good quality and beautiful. Well done. So I'm working on it in my own way. But the parts of me inside are your components. Being able to see and find the original. From another amplifier. I can see it, but I can find it. It's difficult without a photo of the amp's interior, because it's unclear what they did before me.
If you insist on seeing the original version of the amp, you may never repair this amp. Why not do some proper troubleshooting to see if it can be repaired?
I would split problem into 2 recognizable and "doable" jobs.
1} many car amps used a TL494 based 12V to, say, +,/-32 or 34V supply.
Bet/hope this one is generic, what was State of the art of standard 20 years ago.
So some other similar but more popular amplifier schematic would be close enough to help troubleshooting.
Concentrate first in getting those power rails back, disconnected from suspect of dead power amps.
2) by the same reasoning, I hope power amps are standard bipolar Class AB, repairable without schematic by a reasonably experienced Tech.
Not necessarily Nasa level.
So there is hope, but an experienced tech is needed.
On the contrary, this is not an amp to learn on.
EDIT:
" What is a 'master'? Be specific "
It's auto translated text.
I guess it means "experienced Tech"
1} many car amps used a TL494 based 12V to, say, +,/-32 or 34V supply.
Bet/hope this one is generic, what was State of the art of standard 20 years ago.
So some other similar but more popular amplifier schematic would be close enough to help troubleshooting.
Concentrate first in getting those power rails back, disconnected from suspect of dead power amps.
2) by the same reasoning, I hope power amps are standard bipolar Class AB, repairable without schematic by a reasonably experienced Tech.
Not necessarily Nasa level.
So there is hope, but an experienced tech is needed.
On the contrary, this is not an amp to learn on.
EDIT:
" What is a 'master'? Be specific "
It's auto translated text.
I guess it means "experienced Tech"
Last edited:
I usually work on these. It took me 5-6 hours, I'm struggling. But probably my experience is not enough. Again, I would like to hear the necessary explanation if there are studies. Of course. Yes, I am trying to do what you say.If you insist on seeing the original version of the amp, you may never repair this amp. Why not do some proper troubleshooting to see if it can be repaired?
Pull the rectifiers and power the amp up. With the meter's black probe on the primary ground. What's the DCV on the 3 terminals of the PS FETs? They should all be the same.
Monitor the current draw and the heating of the FETs while it's powered up.
Monitor the current draw and the heating of the FETs while it's powered up.
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- The amplifier does not turn on, the mosFETs get extremely hot. There may also be missing pieces in the solution. Or they may have moved. We can't see.