Recently the amplifier began smoking, white smoke but the amp did not cut off, when inspected the capacitors shown below burst. I myself replaced the capacitors all, and it happened again. Want to know what may have caused this and also what other components to check for damage. All i have is a multimeter.
Something same happened to me... I have a PowerAcoustik A3000DB Brand New... and it brokes jejejeje white smoke in the amplifier...jejeje it blow up and burn 12 pieces : 6 voltage regulator seria IRFZ46N (this is easy to find but the next is hard) and 6 audio output serial FB31N200...you want to repair that amp search this pieces
@ dsb100
Driver Board
The following transistors goes as follows...
starting from the 8Pin (JRC4580D)(dip) Ic .. transistors facing away from the ic are;
2/ MPSA42 0r MPSA05,MPSA06
next
2/ MPSA56 or 2N3906 or NTE159
next
2/ MPSA42 0r MPSA05,MPSA06
next
2/MPSA56 or 2N3906 or NTE159
followed by one (1) C1027
at the end of the driver Board where you see (big transistors) starting from the back are
1/ A1023 0r A1013 (BIG)
1/C1027 (BIG)
1/C1027 (BIG)
followed by
3/ MPSA42 in a straight line....
I recommend Changing the (JRC 4580D) 8 Pin IC with the very same one (ORIGINAL) (NO SUBSTITUTES)...
After that is done check the output mosfets (FB31N20D) to see if any of them are shorting,,,
check the resistor at every first pin in parallel with a diode (1N4148)....
Now change Your capacitors with 2200uf 80V...
Broken legs on the rectifiers or an intermittently shorted common mode inductor would be the likely suspects. The common-mode inductor is just to the right of the capacitors in the photo. Install a single 15 amp fuse in ONE of the 4 fuse holders (other 3 fuse holders empty) and power up the amp. Twist the inductor to see if the amp draws excessive current (which would blow the fuse) or to see if it sparks.
Let me know if you have any other questions.
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