So I got a V4B I-Opener and stupidly soldered a shunt across R302, this as my desoldering and soldering weren't up to snuff.
Well, it died. Really dead, no green light at power on (not even a blink) toasted I-Opener
My choices appeared to be to buy a new one, or to try to find some place to fix it. My cost would be about $199 + sales tax to replace it. I found w i z z t r o n i c s . c o m (spaces to avoid problems with censoring) was offering a $105 dead I-Opener revival deal.
Well, it took a while, but my deceased I-Opener is no longer dead. It also has mods installed to set by dip switch fsb and multiplier (as well as a newer higher current R303 current limiting resistor).
My hats off to those who solder this stuff easily, and it is likely a great mark against me that I have failed and screwed up my I-Opener totally. However the folks above claim to have serviced 500 I-Openers and to have had only 1 non-revivable.
I am not affiliated other than as someone who used the service with the above. However if you have a toasted I-Opener, and are unable to get it fixed locally or via your own effort at least this may offer a possible solution. My K6-3+ will hopefully live quite happily.