ok i have another one of these,the power supply is shot. what resistors and mofets would be good?
i read on another thread 47 ohms and IRFP064N just need to be sure thanks!
i read on another thread 47 ohms and IRFP064N just need to be sure thanks!
If it uses the IRF3710 outputs, order the Z version (IRF3710Z). Also order a new 4080.
Check the low value resistors and the large diodes near the 4080.
Check the low value resistors and the large diodes near the 4080.
If you're going to install the 3205s, you may as well leave them. This drive circuit can handle the load. If you have a scope, check the drive signal on the gate pads for the power supply FETs before installing any new FETs.
ok ive cleaned the amp off and the 494 is getting no power? on the bottom of the amp it has heat damage should i replace it?
With the power supply FETs out of the circuit, do you read ~5v DC on the gate pad for every power supply FET?
the layout is different than what im use to dealing with brutus amps.
the 494 just started making a frying noise and them made a little smoke.what should i check before replacing this chip?
the 494 just started making a frying noise and them made a little smoke.what should i check before replacing this chip?
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4v on the gate pads should indicate that you have a good drive signal, especially if all gate pads had the same voltage.
What was replaced before you applied power?
Did you have the transistors tightly clamped to the heatsink?
Which transistors smoked?
What was replaced before you applied power?
Did you have the transistors tightly clamped to the heatsink?
Which transistors smoked?