#FENDER CHAMPION 100 PROBLEMS DOWNLOAD#

Some would do different things depending on how warm they were. Some used to make odd noises or pushed the woofer back and forth when shutting off. Some used to make a thump when first turned on. I've been building & repairing amplifiers since the 70s. Fender may have encountered this problem and put the mute function in but it doesn't always work. An alternate is to look into the 'mute' function shown on the lower right of the schematic. I'd think about maybe adding some capacitance to the DSP power supply to extend its operation during power down. Since the output stage still has some of its supply voltage, it dutifully passes the anomalous signal on to the speaker. My guess is that the power supply voltages to DSP drop off a bit quicker than to the output stage and when the DSP stops running because its supply voltage is too low, it looses control of one or more of its outputs.

#FENDER CHAMPION 100 PROBLEMS DOWNLOAD#

I download the schematic from Fender and see that it has a DSP and a switching supply. So I'd really like to buy one of these little, full-featured modeling amps, but not if I cannot find a fix for that damned POP!!!! You need sound to come out of your amp, but all you hear is silence. then POP! There must be a solution that makes sense. Sometimes the easiest fix is easy to overlook. Seriously, it's a loud POP, that surely must be stressing the speakers in these little amps, and it's enough to wake up somebody who has just been lulled to sleep by one's gentle serenade.

I asked one of the sales techs about it and he said 'yeah they do that.' I looked on the internet and found lots of threads describing and discussing the problem, with the usual non-answers (Put it on standby! It's the power switch arcing! They all do that!) from people who didn't actually understand the problem. 2 seconds later: POP! So I experimented, and found the above. Turn it off, wait 2 seconds, POP! I was in the guitar store today and I wanted to try out this amp. Regardless of whether there is anything plugged into the input or not. Even with volume and gain and all other controls turned all the way down. Symptom: About 2 seconds _after_ shutting off the power switch, the amp emits a rather loud 'POP' from the speaker. Is it broken or not? Patient: Fender Champion 20 small guitar amplifier, new out of the box, and all the others like it too.

Fender champion 100 problems