Hey, Recently was given a non working PSOne LCD. The backlight on it doesn't work. I have found that this component has been lifted from the board and part of it seems to be cracking. Is there anyway to repair this? Thanks
Yes. This is called having a cracked core in the ferrite inverter. I have a spare inverter on my desk you can have. I am from Sydney Australia, so postage may be slow with high'ish rates if you are in the US.
It looks like it lifted the pads as well. How can I get around that? Also, Is there anyway to get around this whole thing or do I need a replacement?
Well, try heating up the joints. They should pop. Then, try to bend them back to the lifted pads and resolder them. If it is still whining, then the core is cracked.
On the right side the pad closest to the edge of the board connects to the bottom of the component next to it - you can see the trace on the board. The other one doesn't appear to connect to anything. Looking at the PSOne screen I've got on hand you can shine a light through it and see through (mostly). I don't see anything that connects to it and it would appear it is there for structural support.
Here's how I'd go about that: * Remove the varnish further down the copper trace on the PCB using a fiberglass brush or an x-acto knife or equivalent. * Tin the now exposed part of the copper trace. * Desolder the old pad from the inverter's leg. Remove any excess solder while you're at it. * Position the inverter. * Take a coarse strand from a cable and cut it to appropriate length. * Position and tape down the strand so it connects the inverter's leg to the copper trace. * Solder the strand. * Cut away any excess of the strand. After testing, you might want to cover the repair with hot glue or tape for protection. The other leg that seems to be there only for support you can reattach with cyanoacrylate glue. It might be a good idea to do it after you've prepared the other leg for soldering (though not soldered it yet).
So basically do this, connect the right pin to the bottom of that component and if that doesn't work I need a replacement?
In essence, yes. I would however remove the varnish from the copper trace right next to where it's ripped off, and connect the inverter there instead of on the SMD capacitor. But then again, if you're just gonna test if it works, you can solder it to the cap just aswell, electrically it's the same thing. And yes, if that won't work, you probably need a replacement. I wouldn't be all that worried about the broken ferrite core in itself, however, chances are that the coils are damaged too.
Well, Haunted360 offered you an inverter in the second post, I guess that would be the easiest way to get one If someone happen to know its specifications, or there are some kind of identifying number/letters on it to go on, getting an equivalent from a local dealer is an alternative too. Or if you're extremely lucky, you might be able to salvage one from a laptop screen or something like that. It would also be possible to figure out its specs by some measuring, but to do that, you'd have to involve someone with a whole inverter to do the measurements.
Only identifying number I can see on it is 463w1322 d101 I will ask haunts, but I am afraid of the shipping costs.
