Badcaps Forums - View Single Post - Panasonic TC-P65ST50 plasma in protection mode after incident

**R_J** · 04-29-2022, 05:47 PM

R414 is not the source resistor it is just a fusible resistor in the supply voltage line. The source resistor is R403, I would check that resistor and the diode D411, If the ic shorted, D411 may have shorted and now R403 would be bypassed by a shorted diode. With pin 2, S/OCP connected directly to ground and not through the resistor, the ic can't monitor the current.
I should add that having a lower resistance for R414 should not have caused a problem.

04-29-2022, 05:47 PM	#16
R_J Badcaps Veteran Join Date: Jun 2012 City & State: ☻ My Country: Canada I'm a: Professional Tech Posts: 8,165	Re: Panasonic TC-P65ST50 plasma in protection mode after incident R414 is not the source resistor it is just a fusible resistor in the supply voltage line. The source resistor is R403, I would check that resistor and the diode D411, If the ic shorted, D411 may have shorted and now R403 would be bypassed by a shorted diode. With pin 2, S/OCP connected directly to ground and not through the resistor, the ic can't monitor the current. I should add that having a lower resistance for R414 should not have caused a problem. Last edited by R_J; 04-29-2022 at 06:59 PM..