A great deal. I have too many projects to add this to them.
https://portland.craigslist.org/mlt/ele/d/pioneer-receiver-sx-680/6458784166.html
https://portland.craigslist.org/mlt/ele/d/pioneer-receiver-sx-680/6458784166.html
Pioneer SX-680 needing repair in Portland Or. Free
- Thread starter MikeRam
- Start date
Should be picking it up this weekend....
Fingers crossed it's nothing I can't fix.
Fingers crossed it's nothing I can't fix.
Last edited:
teal'c
Nuclear Cardiac Parent
toxcrusadr
Omelette au Fromage
Wow. Hope that works out.
I repaired two SX-680s for a friend, both lit up and had no sound. I expected the STK modules were dead.
Both were the same part, a resistor (can't remember the value) that opened in the power supply dropping power to the preamp.
Either my friend is very very lucky, or this is a common failure. I replaced PS caps while I was in there, they tested a little on the low side but not bad, no idea why the resistors opened (no signs of heat either).
I hope that you're as lucky. If yours has the same symptom PM me and I'll look up what resistor it was (but should be easy to find, closest to the back of the unit, two in a row, one closer to the tuner side of the receiver IIRC).
Both were the same part, a resistor (can't remember the value) that opened in the power supply dropping power to the preamp.
Either my friend is very very lucky, or this is a common failure. I replaced PS caps while I was in there, they tested a little on the low side but not bad, no idea why the resistors opened (no signs of heat either).
I hope that you're as lucky. If yours has the same symptom PM me and I'll look up what resistor it was (but should be easy to find, closest to the back of the unit, two in a row, one closer to the tuner side of the receiver IIRC).
Aaron99
Active Member
Did you end up getting it?
Yup. Haven't opened her up yet though.
Aaron99
Active Member
Thanks Aaron. I just might take you up on that.
toxcrusadr
Omelette au Fromage
Lots of good info on the SX series here at AK. I've been looking up stuff on the 750 and 780 lately and there are some great threads on common problems.
Same deal with the one sx-680 that I've restored. I think it was a 600 ohm resistor or something. Swapped it out and the amp worked perfectly fine again. There is a thread on here detailing the fix.
With that said, I wasn't very impressed with the sound of the 680, even after recapping and replacing a few noisy transistors. Might sound better with more efficient speakers, but the bass was just really weak. And the plastic push buttons are a bit of a turnoff as well.
