Hi all, I have a 1998 Sony kv20v80 in shutdown with 2 blinks on the standby led. I think that means the PS section area. I am working off of a Sam's #4134 schematic.
Measured the 115v, 12v, and standby 5v sources and these are ok. The9v source off of Q605 9v reg goes to 4v before shutdown. As is the 5v source off of Q650 reg, fed from the 9v source. Measured the resistance at the 9v TP to ground and it read 3.5 ohms. Don't know if that's normal or not.
Q502 HOT is a 2sc5426 with internal damper. Seems to check out ok except I do get a reading of 43 in ohms function B to E and 4.3 in diode check function. Reversing the leads gives the same #s. Not sure if the Hot has an internal resistor.
Anyone with pointers on what I should be looking at next or have fixes on similar models.
Thanks , Al