Okay here’s a five-part repair video for an obsolete Polaroid LCD screen television which I’m posting here because the fix is very simple and is ideal for those who have little experience tinkering with these devices. Basically, the symptoms of the problem is the unit’s failure to power up successfully. When you turn it on, the power indicator light goes to life but the screen does not. Screen remains blacked out like there’s no power feeding it. These polaroids are quite notorious for this and the culprits are usually very small components known as a capacitors. This video instructional shows very detailed step-by-step process on how to get to the bad capacitors, take them out and then replace them with new ones. This is an old video for an old Polaroid TV model (FLM-3732) and most of these units might only be found in junk shops or being sold in non-working condition for parts. If you find one, you could probably revive them by performing this repair.
The video quality sucks (given that it’s an old video) but it gives some pretty good points on how to disassemble the unit, how to find the components you’re looking for (in this case the capacitors) how to tell whether the capacitors are bad and then how to replace them using common everyday electronics repair tools (which you should have). However, if you’re a total newbie, do tread with caution as these devices are high voltage devices that can cause some serious health issues. Learn the ropes by taking this LCD TV repair course made for beginners to serious DIYers to professionals.