SONY PCG-282M No Picture Thread

[ReeceyBurger123]

Got this AIO (all in one) Sony Pc here, Visa based with 2gb laptop style ram. Nicely compacted together, not looked into it too much yet. Anyway the fault is no picture at all, no backlight, the Lcd does not work and the computer does not boot up at all.

So far I have tested the inverter and it is fine, there is no "backlight on" signal being generated by the motherboard so it wont fire the backlight but putting 3v to that point (using 2* 1.5v batteries in series) the inverter does come on and the backlight and inverter board both work

I tested the Lvds signals and they are dead, the Lvds chain does switch the lcd to open when the unit is powered up (normal behaviour if not you get white screen) but not further display signals are sent so probably the Gpu at fault

I will be looking into the more tomorrow, Im suspecting the Gpu as I said which is bga mounted to be at fault probably the solder joints. Will update tomorrow chaps any input till then is appreciated

[knoxrebel]

Re: SONY PCG-282M No Picture Thread

May have better luck posting in the laptop forum. Dells are the only ones that i have consistently found that have fuses that are marked. Just had a hp that had the exact problem you are posting about. If you cant find a fuse there might not be one. In that case the controller chip is likely dead. If you find a fix though let me know.

[ReeceyBurger123]

Re: SONY PCG-282M No Picture Thread

Cheers buddy Im sure it will be alright here im sure matey I know what Im doing well most of the time lol, also I will take the Mb cover off tomorrow and have a look for some Smd fuses see if any are open as they can randomly fail at times.

The cover isnt going to be fun to get off though lots of little screws that are not magnetic