Question about Legacy Audio LA1030 Car Audio Amplifier
I HAVE A LEGACY LA 1030 AMP WHICH KEEPS GOING INTO PROTECT WHAT IS WRONG WITH IT+CAN IT BE FIXED?
AND IF SO WHAT DO I NEED TO REPAIR IT?
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Posted on Jan 02, 2017
SOURCE: 600w legacy amp
9 times out of 10 if your amplifire is in protect mode and evrything externaly, like speakers, fuse, voltage, etc. checks out fine then
either you have shorted out output transistors or power mosfet transistors. Basicly that just about what happens with car amps.
It's easy enough to fix IF, IF you know what your doing. First you
need to check the output transistors with a digital volt meter on diode check, If they check out then check your power supply mosfet transistors. I can almost guarantee this is your problem. Very common. I buy non working amps all the time and repair them. Listen to pbabin also he has helped me out. Good luck
Posted on Feb 12, 2009
SOURCE: LA-1030 Protect Mode
you have an unloaded channel,so the voltage is exceeding what the protect circuit is supposed to see.you have to connect an 8 ohm resistor across the output of the unused channel.
do not drive a signal into it or you will smoke the resistor.
a 10 watt will do ok with zero signal input
Posted on May 23, 2009
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