Question DPS-178APA power supply

[metropical]

from a Sharp lc32d42u.

I've had the ps fail a few years and fixed by replacing a 5wt resistor on stand-offs in the standby circuit.
The same ps has failed again.

I understand there is a diode that can be questionable and another part.

Anyone know which parts are most likely?

 

[helpstar]

Are the Electrolytic capacitor fine?

 

[metropical]

I haven't tested them, but they look OK, no popped tops.
I don't have the board home yet, so I also haven't tested the fuse either.

 

[metropical]

fuse is good. The big (5wt?) zener in the stand by 5v tests good in circuit. Swapped another DPS from another of the same we bought. The PS is the issue.
The electrolytics all look good. Any idea what might be other components to go bad in the circuit?
There is a parts pack on ebay, but it doesn't tell you what they are (for obvious reasons).
And Sharp is of no help as they will only speak to "qualified" TV repair shops on their list.

 

[helpstar]

Sorry, can´t help you further from here

 

[metropical]

Darn the Luck ! ! ! Thanks the same,