leonattpcs
New member
Computer just stopped switching on.
Just beeping around the board for now and checking voltages:
Found short at u6990 c6999 c6994 c6996 - replaced them all, short gone, but still not switching on, no green light no red light
Looking at u7000, 16.5v is going to pin 2, 16.1v is getting to pin 26 from from q7080, less than 1v is getting to pin 1 from q7085 so am I replacing this and checking again? I only ask as the schematic does not mention voltages coming from q7080 or q7085 only going into them.
Thanks
I am also thinking isl 6259 needs replacing, but I want to know bout q7085 first. Checking pins 27 - 28 of u7000 and pin 19-20 all is well.
Thanks
Just beeping around the board for now and checking voltages:
Found short at u6990 c6999 c6994 c6996 - replaced them all, short gone, but still not switching on, no green light no red light
Looking at u7000, 16.5v is going to pin 2, 16.1v is getting to pin 26 from from q7080, less than 1v is getting to pin 1 from q7085 so am I replacing this and checking again? I only ask as the schematic does not mention voltages coming from q7080 or q7085 only going into them.
Thanks
I am also thinking isl 6259 needs replacing, but I want to know bout q7085 first. Checking pins 27 - 28 of u7000 and pin 19-20 all is well.
Thanks