Mailist to discuss all issues regarding the Digitech GSP-2101 Guitar FX Processor

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-AT


> -----Original Message-----
> From: wulffert [mailto:mark@...]
> Sent: Friday, August 20, 2004 7:57 AM
> To: gsp-2101@yahoogroups.com
> Subject: [gsp-2101] GSP-2101 processor problem
> 
> 
> I have working on my 2101 for several months on and off so far. I 
> have v3.00 with the PPC installed (both are SDISC II). It has the 20 
> MHz crystal with 10 MHz Zilog (even though schematic calls for 
> hitachi). This unit one day decided to blow fuses (it only does this 
> sporadically), turns out the current draw is at the threshold, I put 
> a slightly larger fuse (I know a big no - no) but unit turns on and 
> nothing gets hot, so other than a slightly elevated current, I can't 
> find any shorted parts. Nothing works, front panel is all 8 8 8 and 
> blocks on the LCD. No communication with foot controller. Looks like 
> processor is running, I see acivity on address and data busses, on 
> all lines. I never see the CS line go low to the memory, although it 
> may at startup. Decoder chips seem to be ok. Anybody seen this before?
> I even tried the old V2.02 firmware, pulling the battery, factory 
> reset.
> 
> Mark 
> 
> 
> 
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