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Messages - Crich

#1
Schematics and Layouts / Re: signal tracing
December 17, 2019, 09:41:40 PM
Sorry for taking so long to thank you for the suggestion. I haven't had a chance to get back to the amp. I will post results.
#2
Schematics and Layouts / Re: signal tracing
December 09, 2019, 11:52:01 PM
I will disconnect the power at P9 and P10 see what happens. F2 fuse is connected to P9. Fuse not blowing right away amp works awhile then blows. Wondering if dsp board over heating. If I jumper pins L in to L out plus or minus I  have power at R20 & R22 but nothing at Q1 transistor and beyond. I need to know what pins to jumper at P11 connect. The attached Princeton 65 DSP is close but connector P6 different but dsp board I think is identical. Any help appreciated. Thanks
#3
Schematics and Layouts / Re: signal tracing
December 07, 2019, 07:43:20 PM
Thanks I will look into it.
#4
Schematics and Layouts / signal tracing
December 06, 2019, 10:34:07 PM
Trying to repair a fender FM15 DSP that blows the F2 fuse. Trying to use an audio probe but can't read schematics. very well. Need to trace signal from input to out put. Can anyone help me? I also think the problem could be in the DSP board but not sure the schematic even shows it. Would like to know how to bypass it if possible.  This is a learning project for me so don't need to buy another amp Thanks.I