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Author Topic: fix broken speakers  (Read 1429 times)

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runawayabc123

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fix broken speakers
« on: July 01, 2011, 12:53:05 am »
Ok, I bought a board off of ebay (I know, I was told to run away from ebay after the last board I posted about on here about), but I had already bought this one by then and it was in shipping transit. 

I have an existing known good Leathal Enforcers board.  It has a broken corner, but works. 

I wanted a replaclement without a broken corner (on the PCB).  Demanding, I know.  Well, I eventually found one.  Yay!

I hooked it up after playing Turkey hunter last night.  No sound.  Ok, someone turned it off.  Hunted in the menu, turned up the sound to what my other board was at.  (10 to 15 that is).  Still no sound.  Time to put in my LE board, incase something else was wrong.  No sound.  Put Turkey hunter back in.  NO SOUND!  Time to switch to the spare speaker.  Sound!  Yay.  Maybe my speaker just went?  Back to the new-to-me LE board.  NO-SOUND.  In my mind goes the oh-crap!   :angry:  The board baked my speakers.  Switched to my LE board and a junky speaker.  Sound.  Rats.  Every speaker that touches that new-to-me LE board dies.  Bummer. 

Any thing I can do to fix the speakers?  My quick internet search says, they are $10 speakers, it isn't worth it.  Consider it a lesson learned and buy new ones. 

Other lesson: my junky old board should be loved and kept, don't try to replace it.  It loves me and have given lots of fun to all. 

lilshawn

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Re: fix broken speakers
« Reply #1 on: July 01, 2011, 01:02:25 am »
your audio amp has a shorted output transistor in it, its causing the voltage used normally to drive the speaker in an alternating fashion to just be pumped directly (DC) into the speaker.

throw a multimeter on your speaker terminals i'll bet it reads 12 volts DC (or whatever the amp is being run at) it shouldn't read anything DC

divemaster127

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Re: fix broken speakers
« Reply #2 on: July 01, 2011, 10:44:29 am »
I stock most arcade replacement speakers if you need some
thanks
dm
arcadeemulator.net
I carry both ultimarc & happ items, all brand new & I ship from the united states. My online store is ARCADEEMULATOR.NET, pm if I can help in anyway.