This is a version 1. Ok so this amplifier had multiple problems. Blown outputs and missing parts. Strange current cycling after I placed a 1R resistor into R654. It was missing. Maybe it's not correct? When it was missing the amplifier had audio and worked but the crossover functions we're distorted, it acted strange when selected to 24db slope. So now the current goes from .62amp to 8.95amps. when I removed the resistor R595 burnt up.
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For R654, 1 ohm is right, assuming it's the same as the older models.
Those two resistors are part of the protection circuit. With the 1 ohm out of the circuit, the 750 ohm likely had too much voltage across it.
Those two resistors are part of the protection circuit. With the 1 ohm out of the circuit, the 750 ohm likely had too much voltage across it.
ok i ordered the propeer cement block hole through resistor 1R5W should be here soon. I ordered extra parts. Whats strange is the amplifier was working just had like the audio issues. choppy sound when you switched the crossover on to 24db slope. and seems like the bass eq was not effective. so after i get the resistors back in curcuit and get it stable, ill post an update.
All the switches have been deoxed, I also did find the drop in replacements (Mouser) ill upload them to the other post for others to order.
All the switches have been deoxed, I also did find the drop in replacements (Mouser) ill upload them to the other post for others to order.
Ok so all the parts find Ally came in for this and I got to it today. Replaced the 750r for r595, replaced the 1ohm. The amplifier has audio, and maybe repaired. I have a question about the opamps. Will a 072 work in place of one of these 2068? I have clean sine waves on one then the next it's not. I'm not sure if this is normal?
The TL072 Worked perfecly in this curcuit. In this amplifier when i shut it off on the bench it has a very disturbing burp to the subwoofer, any idea how i could remedy this?
Are you only switching off the remote (leaving B+ and ground connected to a 12v source of power)?
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