Hi guys, some time ago my buffalo received a lethal overvoltage, my project box was left on and uncovered downstairs and it was knocked over, causing voltage death
for a while I didnt do anything about it, but about a month ago I decided I was going to attempt a repair. not one to do things by halves and thinking it was the best course of action, I bought parts to replace every active component on the board except for the relays, DAC and XO, plus some of the electrolytics. I figured there wasnt too much chance of these components being damaged by a short, because there was much in the road to fail before them, I just chipped away at it in my spare time until I was almost done, then I procrastinated about it, but this last week I decided I would finish it off. so I removed al the opamps, regs and 2 oscons that showed a 6R short across them (I have other spares too) lifting only one pad on the last thing I removed :( one of the shorted caps, but I carefully cut a piece of copper foil and folded it over a cpouple of times and soldered it in place, all was well. the job isnt as clean as I would like because of the glue, but its all rather neat and seems fine. today I powered it on for the first time
, I heard a reasuring click of the relays, no smoke and both LEDs flicked on and then off quickly (I cant remember if that is normal, there is no signal connected??)
so its now set up to receive SPDIF from the optical module, which has proven to work in the meantime with the MUX, which is also functional (or at least I get all the right frequencies with my meter I dont have a scope), but I have left it out of the equation along with the volumite to simplify trouble shooting.so after reading the manual again, I got to thinking that perhaps I should reset the dac after such a traumatic episode, would this be correct? and how is this done, I know there is a dip switch, but do I flick this before I turn it on, then wait, turn the dac off again and flick the switch back to the middle?, or do I do it while its on?
so I will hook up my iriver to the toslink module a little later, but wondered should I do the reset first. also if the automute LED should be on, can you guys think of something else I could check? it really does seem like its OK, or at least close to OK.
oh and i've replaced the FW with a new DIP as well
thanks for your time, I have a buff II which i'm gonna power up a little later, but was keen to get this done first.
Edited by user Tuesday, March 23, 2010 1:53:26 AM(UTC)
| Reason: Not specified
