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Circuit Board help

SparkyStu

New Member
Hi guys, I have problems with a circuit board taken out of an all-singing and dancing front room flame effect fire. The makers told me the circuit board is likely the problem for the fire not working, but the boards are no longer available. (Great.) So, I need to fix this one. Can anybody help me (looking at the pictures) identify what is the most likely component to have died?
 

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Seems like there is heat discoloration around toroid and the four power diodes right
next to it and large electrolytic

Tedious but consider hand drawing a schematic, then use DVM R measurements to look
for shorts at various circuit nodes. Or start with diode check on DVM, and confirm each
diode looks like a diode, fwd and rev bias with DVM diode check mode.

Check caps not shorted, always key failures causing other failures.


Regards, Dana.
 
What is the TO220 device, Q207?

I repaired a somewhat similar unit for a friend last year; that used a TOPSwitch type device for its power supply & that had failed.

The TO220 device looks as if it could also be part of the power supply circuit on your version?
 
Component EC201 is missing. I don't know if it's by design or it broke off. Look at the solder pads on the back side to see if there are just little cones of solder, or if there are some leads imbedded in the cone of solder.
 
I see small soldered leads where EC201 ( Electrolytic Capacitor?) should be.
Component EC201 is missing. I don't know if it's by design or it broke off. Look at the solder pads on the back side to see if there are just little cones of solder, or if there are some leads imbedded in the cone of solder.
I see small soldered leads where EC201 ( Electrolytic Capacitor) should be.
Lacking a schematic, no replacement value can be suggested.
 

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