Dropped on hard floor and now just 1/2 second LED illumination.
No sophisticated chippery inside, an LM324 and 2x TL494, no SMD unless
under something.
No obviously failed solder joints of big lumps or elsewhere , no cracked
pcb.
4 IRF740 and 4x RFPN06 and a 7812 complete the main active stuff, what
would be most likely mechanical failure inside? DIP IC, transistor,
diode, other?