|
Shorted how? It's an SPDT relay, right? The coil should measure a few ohms, and the NO contacts should be open, and the NC contacts should read as a short.
So what element(s) are shorted? Usually relays fail when the contacts either arc away or arc-weld themselves together.
5V to the relay coil (out of circuit) - do you hear a click?
It is activated in circuit by the RL ON signal from the main board.
Your 4A fuse blowing is from something shorted, but me thinks it's the bridge rectifiers....have you checked them?
__________________
Brian
USN RET (Avionics / Cal)
CET- Consumer Repair and Avionics ('88)
"Capacitor Cosmetologist since '79"
When fuses go to work, they quit!
Last edited by Findm-Keepm; 12-23-2016 at 09:20 AM.
|