RESQ-MYTECH
New member
Hi all. There is a simiar post up in the last 5 hours by Don Anton but I do not wish to hijack his one. However I have a similar problem but with slightly different circumstances..
Above mentioned logic board. Corrosion on U5110/ C5120/R5127/C5101/ C5126 and the area around C7799/C7712/C7713/Q7707. Also Pins 3/4/5 on J8300 corroded away. For the interim not worried about the 2nd area but I have changed U5110/ C5120? R5127/ C5101/C5126.
Initally I had no voltage on PPBUS_G3H and PP3v42_G3H was 3.42v. After changing the 5 components even though I got PPBUS_G3H back @ 8.4v I still have no green led or fan spin.
After reading Don's post I removed U5110 and I get the same result of green LED for about 3-4 secs then to orange, fan spin for about 2 sec before it slows to a stop. I dont get the 1/4 spin. it full spins for the 2 sec's.
I have checked C5125 where i have a voltage of 0.058v capacitance of 9uF and 3.369v at both pins on R7100. It does read 0 ohms
I have removed U5110 as did Don and I get the following reading:-
Pin 1 - 3.42v
pin 2 - 0.0v
pin 3 - 0.0v
pin 4 - 0.027v
pin 5 - 3.389v
pin 6 - 0.0v
pin 7 - 3.418v
pin 8 - 0.052v
Any Guidance is gratefully received as usual.
Thanks in advance.
Above mentioned logic board. Corrosion on U5110/ C5120/R5127/C5101/ C5126 and the area around C7799/C7712/C7713/Q7707. Also Pins 3/4/5 on J8300 corroded away. For the interim not worried about the 2nd area but I have changed U5110/ C5120? R5127/ C5101/C5126.
Initally I had no voltage on PPBUS_G3H and PP3v42_G3H was 3.42v. After changing the 5 components even though I got PPBUS_G3H back @ 8.4v I still have no green led or fan spin.
After reading Don's post I removed U5110 and I get the same result of green LED for about 3-4 secs then to orange, fan spin for about 2 sec before it slows to a stop. I dont get the 1/4 spin. it full spins for the 2 sec's.
I have checked C5125 where i have a voltage of 0.058v capacitance of 9uF and 3.369v at both pins on R7100. It does read 0 ohms
I have removed U5110 as did Don and I get the following reading:-
Pin 1 - 3.42v
pin 2 - 0.0v
pin 3 - 0.0v
pin 4 - 0.027v
pin 5 - 3.389v
pin 6 - 0.0v
pin 7 - 3.418v
pin 8 - 0.052v
Any Guidance is gratefully received as usual.
Thanks in advance.