[Elecraft] K3 Speaker Amp - sub side inop

[Dave Hachadorian]

>> Any ideas are welcome.  Meanwhile, is the LM4950TS stereo amp
>> available as a component from Elecraft, and is it 
>> user-repairable?

That chip is fragile. I've blown it twice, just with excessively 
loud audio. (AGC OFF)

I'm a fairly good solderer, and I bought a replacement IC here:
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=LM4950TS-ND

I was able to remove the old chip by cutting all the leads, and 
removing them one by one, but when I looked at the tiny pads on 
the circuit board, I chickened out. I couldn't see any way to 
solder those pins to the pads without shorting them to each 
other. They are EXTREMELY close together.

I ended up sending the DSP Board back to Elecraft for repair.

Dave Hachadorian, K6LL
Big Bear Lake, CA






































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