http://uk.rs-online.com/web/p/pcb-transformers/7320354/
looks right to me meter reading negligible output on transformer and regulator when warm will check when cooled On Wednesday, 9 January 2013 01:15:49 UTC, Ira wrote: > > At 12:23 PM 1/8/2013, you wrote: > > >Bending the board by applying pressure to the 4 connectors for the > >solenoid/headers is quite specific to that corner and it bends about > >the center line of the board. I don't think it's the switch as I've > >swapped it out and the fault is the same. > > The 100 ohm resistor is part of a circuit to protect the relay contacts. > > The autofill is controlled by the small parts at the rear edge of the > board, away from the connectors. A 14 or 16 pin chip, looks like an > LM324 and all those tiny resistors and capacitors. > > The part that tends to go on these is the transformer. If you've a > meter, check the output of the transformer when cold and warm, should > be 12 or 24 VAC, don't remember but probably 12. > > Also check the 12VDC out of the regulator for both 12V DC and AC near 0V. > > Measure between the hole in the tab and the outside pin of the TO220 > package in the back corner, marked IC1 on my spare. > > Across C1 should be 15 to 20V DC with a bit of AC to go with it. > > Ira > > -- You received this message because you are subscribed to the Google Groups "Brewtus" group. To view this discussion on the web visit https://groups.google.com/d/msg/brewtus/-/zJkoi9eVHc4J. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/brewtus?hl=en.
