On 5/28/2015 3:02 PM, amdx wrote:
Made by Chamberlin.
Receiver quit working, PCB is labeled 14LG300F.
Need schematic.

Thanks, Mikek


Not finding any usable information on the net.

I pulled the board out, inspected it, found a 3 watt resistor
that runs hot, couldn't be sure about the value possibly 470 ohms,
measures 501 ohms, reinstalled resistor. Noted a sooty area on a
the white plastic connector and a slightly brown, baked area under
a transistor, thought maybe the transistor had smoked, checks OK.
Reinstalled pcb in door opener, still doesn't work.
This morning putting the remote control back in the truck, pushed the
button, huh, it works. Hard to fix it when it works.
We'll see how long this lasts. :-)

Mikek

PS. I still want a schematic.


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