Hi, new to the forum so hello to all.
I'm working on a crate gfx 212 that when plugged in with a guitar has no output. It does not light my current limiter when I turn it on. I have run test signal through and have signal through all of the pots. After turning off my test tone tracer I noticed that the speakers on the amp are producing the tone at a super low volume. I have signal although a low volume at the output going to the speakers as well. I'm also getting a low level signal trace when I touch the heat. I'm not sure how I am getting signal off the grounded side if I can't find or don't show a direct short. I have found one diode that does not test correct but it is in the footswitch section of the schematic pretty far removed from the power section. I will replace it but should I just go ahead and replace all the power transisitors? Also they are tip142 and tip147 s respectively where is a good source to find good parts with fair shipping? As you can tell I'm a bit new to this.
Thanks,
Tracy
I'm working on a crate gfx 212 that when plugged in with a guitar has no output. It does not light my current limiter when I turn it on. I have run test signal through and have signal through all of the pots. After turning off my test tone tracer I noticed that the speakers on the amp are producing the tone at a super low volume. I have signal although a low volume at the output going to the speakers as well. I'm also getting a low level signal trace when I touch the heat. I'm not sure how I am getting signal off the grounded side if I can't find or don't show a direct short. I have found one diode that does not test correct but it is in the footswitch section of the schematic pretty far removed from the power section. I will replace it but should I just go ahead and replace all the power transisitors? Also they are tip142 and tip147 s respectively where is a good source to find good parts with fair shipping? As you can tell I'm a bit new to this.
Thanks,
Tracy
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