[Diy_efi] Re: My WB doesn't pass the test: The return...

[Renaud]

Thanks so much Bob,
U2 and U3 are socketed, so I will be able to do the test easily.
Hopefully they are not bad, because I had the parts from Steve and I won't 
be able to replace them by buying locally... Anyway, it was my first 
electronic experience, so probabilities are in favor of a solder short :-)

Regards,
Renaud.



 >
 > My WB doesn't pass TEST 26:
 > Heater circuit powered up, J7 to U2 pin 13: I have 0v!!! (instead of
 > 0.9/1.2v).
 >
With the heater ready LED on and the voltage at U3 pin 5 < .1V,
there is either a solder short or U3 or U2 is bad.
If U3 is socketed remove it from the circuit & re-test. If it passes
then U3 is bad.
If it does not pass, then a solder short exists or U2 is bad. You
can remove U2 to see if it is bad or a solder short exists.
BobR.



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