Happy new year to all of you and best wishees.Please help with a schematic of this car audio amplifier,because the pcb was burning,thanks in advance,my e-mail adress is dan_hizniceanu@yahoo.com.
Alright so this amplifier has 2 sections, basically almost like 2 amplifiers in a single unit.
An externally hosted image should be here but it was not working when we last tested it.
This is the power supply card on the first board where the 12V comes in.
Here is a better view of the burnt parts on it.
An externally hosted image should be here but it was not working when we last tested it.
Here is a better view of the burnt parts on it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Here are pictures of the of the mosfet section in the power supply. I had pulled the IRF 064N's already before seeing this post.
http://www.irf.com/product-info/datasheets/data/irfp064n.pdf
http://www.irf.com/product-info/datasheets/data/irfp064n.pdf
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
What I am having trouble with is distinguishing the gate resistors on the first board.
In the power supply section on the second board they are 22Ohms (Red, Red, Black) 5% 1/4watts.
Would they be the same in the power supply section on the first board? Does anyone have any clean photo's of the power supply section of the first board?
In the power supply section on the second board they are 22Ohms (Red, Red, Black) 5% 1/4watts.
Would they be the same in the power supply section on the first board? Does anyone have any clean photo's of the power supply section of the first board?
Here is a picture of the power mosfets on the second board.
An externally hosted image should be here but it was not working when we last tested it.
I forgot to mention in the audio section this amp uses the typical irf 640N's and 9640's ive seen in other hifonics amp's.
I ended up upgrading the board from the 2003 standards with better caps and swapped in the 3 bd140's and 1 bd139. Planned on keeping this amp so I thought why the hell not? lol
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