Re: Vizio VW37 Power Supply PSON working but no 12v or 24v output
U6 is a buck converter, right? U5 is the same chip - AP1513.
I have attached an image of the back of the main board. There are no chips on the back of the main board, just a few SMD inductors and caps.
Should I work backwards from the PSON pin on J1? There are a pair of BJT NPN transistors (MMBT3904L) directly connected to J1. Would my best best of finding the problem be to follow the traces leading into the PSON pin?
Are there any buck converters on the board that might get the 5V standby?
I have attached an image of the back of the main board. There are no chips on the back of the main board, just a few SMD inductors and caps.
Should I work backwards from the PSON pin on J1? There are a pair of BJT NPN transistors (MMBT3904L) directly connected to J1. Would my best best of finding the problem be to follow the traces leading into the PSON pin?
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