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Re: Oh no! Another electronic nightmare. AEG La72630 EWM2000
baron wrote:In order to repair the old board you need: R54(123)=12K; R53(330)=33 Ohms; R52(473)=47K
Not being picky here, just wanting to pick-up some learning…. since 123=12K and 473=47K, why is it that 330=33 Ohms and not 33K?
George
Re: Oh no! Another electronic nightmare. AEG La72630 EWM2000
like the others:
123= 12×1000 (10 at power to 3) Ohms = 12K
473= 47×1000 (10 at power to 3) Ohms = 47K
so
330= 33×1 (10 at power to 0) Ohms = 33 OhmsIn other words SMD resistor codes could be found:
http://www.hobby-hour.com/electronics/smdcalc.phpRe: Oh no! Another electronic nightmare. AEG La72630 EWM2000
Understood.
Very handy link.
Thanks
GeorgeRe: Oh no! Another electronic nightmare. AEG La72630 EWM2000
So…
This is what it looked like after I removed the relays. So Martin was right about water getting in, I think.
And this is what it looked like after I cleaned it up and soldered in the new components (used a wire-in diode and s/h 33R and 47kR because I ordered wrong ones 😳 ).
Thinking to myself, “What if it all goes pear-shaped?” I took Baron’s advice and only cleaned the big relay. The others I opened up and checked they were OK, then re-installed them.
And not forgetting to clean up the cremation site. As you can see, there had been quite a burn up there.
Then this morning I tentatively put it all back in the machine, switched on and waited for the BANG.
To my relief, it just acted as though nothing had ever been wrong. :wobble:
Customer not present, so have left instructions to monitor machine during first couple of uses but have high hopes that I won’t get a re-call. If It bounces I’ll blame Baron 😆 . How much is a pint in Romania, BTW?
Mike.
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