I'm trying to repair a power supply that someone cooked by running on UK mains with a travel adapter rather than a stepdown transformer.
I've found an area of clearly burnt components that I want to replace but I'm not sure what they are or how to read their ratings.
I believe the components at Z1,2,3 and 4 are possibly varistors, they're marked V470 A7, I can't find any that match online so maybe I'm reading that wrong but photo 2 might show you better
I believe the component at ZD1 is a diode (possibly a TVS diode) but that's all I know though it seems to be marked Z1056 (there might be more markings under).
As for the items in C2 and DSP1 I have no ideas at all.
Any help anyone can give identifying and helping source replacements will be greatly appreciated, thanks for your time.
I removed the components for better photos. Any help identifying these components for replacement (after a burn) would be greatly appreciated.
This one I think is a varistor, markings seem to be an "m" logo followed by "V470" (maybe 670??) Followed by "A7" or maybe "/7" underneath.
Next up this little green thing, has bands like a resistor but I'm not convinced it is one, not seen one like it before.
This one I think might be a voltage suppression diode maybe? It's marked with "Z1056", then a large "S" or "5" followed by a little "1AD".
Last up we have this, it looks sort of like a resistor except it seems almost like the shell where the bands are is see-through and there's something at its core.
And finally some photos of the board for context.