Having a multimeter is not enough to build an amplifier. I need an oscilloscope.
Thanks to craigslist, I found a new challenge.
Tektronix-TDS544A. Cool 500MHz digital scope with 4 inputs. But there are some caveats...
Before buying I tried to google it and found that all these scopes have leaking SMD capacitors. Leakage leads to a number of different anomalies.
Seller of mine scope told me the scope powers up but he can't see a thing. Since it is all crap shooting I gave it a try.
As expected, a lot of capacitors have leaks.
The plan is:
1. remove them all
2. clean all the PCBs
3. clean again
4. clean one more time
5. solder new capacitors
Some leaks look very suspicious
Thanks to craigslist, I found a new challenge.
Tektronix-TDS544A. Cool 500MHz digital scope with 4 inputs. But there are some caveats...
Before buying I tried to google it and found that all these scopes have leaking SMD capacitors. Leakage leads to a number of different anomalies.
Seller of mine scope told me the scope powers up but he can't see a thing. Since it is all crap shooting I gave it a try.
As expected, a lot of capacitors have leaks.
The plan is:
1. remove them all
2. clean all the PCBs
3. clean again
4. clean one more time
5. solder new capacitors
Some leaks look very suspicious
 |
| The worst leak |
let's clean it up
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