i did try what you suggested but i get the same symptoms,there is still lights showing up but it doesn’t respond…

im suspecting a cpu failure… or mobo…

Do you have two memory modules installed in the laptop? Try removing memory module one by one.
Test the laptop with only one memory module in place. Try different modules in different slots.
Could be just bad memory.

i was wondering if someone could give some ideas on this problem i got.

i receive a sony vgn-c2z/b with a non working screen.

so i tested the inverter and noticed it was getting power from the mobo cable but not giving it to the lcd screen, i don’t have a lot of experience with laptops but my common sense tells me this is not good…

i also plugged an external monitor but there is no video image…

i tested the HDD and is working fine

the machine turns on, but it won’t boot, just nothing

if the cd bay is closed, then it would make reading like noises

i hear at the beginning the HDD spinning but then it stops

finally, i open some compartments, extracted the HDD, ram, battery and proceed to some deep pressured air cleaning, then put it back all together but sadly the same symptoms persist.

i can see, the power,hdd,wifi lights working, don’t know if that helps…

any ideas on the problem???

thank you very much

lance

While I was looking at the CPU socket after a lot of head scratching, noticed the socket was in the locked postion, so unlocked it put in the CPU and locked the socket, put it back together and it worked!

I’ve said it many times before and I’ll repeat. Always reseat the CPU after removing the heat sink. The CPU is “glued” to the heat sink by thermal grease. When you remove the heat sink, you can pull the CPU from the socket and it will not make good connection with the motherboard.

Took a good look for those loose connections and stuff out of place, but could not find any.

While I was looking at the CPU socket after a lot of head scratching, noticed the socket was in the locked postion, so unlocked it put in the CPU and locked the socket, put it back together and it worked!

* Also make sure that you have some thermal paste to apply on top of the CPU before placing the heatsink, if not the CPU tends to operate at a higher temp that usual.

*** What seems to happen is that when you remove the heatsink the CPU tends to comeout with it, even though the socket is locked, so when you put the CPU like said above, you have to unlock and lock it with some thing like a flat headed screw driver.

Re: a manual for the FRV search the net with the terms Vaio FRV service manual.