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hi, anybody know how i whould be able to find + and - on a board without any indications with a multimeter?
it should be around the green line a draw in the picture or how can i trouleshoot the components if they r ok?
sorry im kind a noob at this
thanks
there might be a copper fill on the underside of the PCB, most provably its connected to ground. So do a continuity check for that. +Ve can be found (i hope) by checking continuity between the pads and the other IC, ruling out the ground terminal you have found earlier.
You should provide better and high quality photos of this PCB. Use micro on photodevice and make photo from closer distance with good light, and wait to focus be good.
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