>Monitor repair thread? Monitor repair thread.
op conformed for /b/tard
*shrug*

bump for the major justice.

one of the first great threads on this board was about tv repair

bumpin'.

broken monitors come up for sale all the times and i'm always curious.

i'm surprised no one has info on this...

This is relevant to my interests. I know absolutely nothing of monitor repair but I do have access to a few nonfuctional LCD monitors.

I think this is a legit question.

1) Look on Craigslist or eBay for LCD monitors or televisions described as not powering on or with blinking lights or that "come on for a second and then go black" or have very faint images.
2) Obtain item;
3) Disassemble item using either an online guide or common sense (LCD televisions are one of the easiest electronics to disassemble);
4) Look on the power board for bulging capacitors - they should be flat on top, not rounded. Rounded capacitors need to be replaced;
5) Read the type of capacitor from the side. You need to know the voltage and the μF measurement of the capacitor(s) that are faulty;
6) To be safe, order enough to replace every capacitor identical to the bulging one on the board from Amazon.com or another online retailer;
7) Remove the board from the television, desolder the bad capacitors, solder the good capacitors on (make sure to note the stripe down the side of the capacitor so you know which pin is - and which pin is +);
8) Reassemble;
9) Turn on.

If this doesn't work, you're out about $2 and then can start looking for a full power board for the television instead. eBay usually carries them and they are searchable by the model number of the power board or by the model number of the monitor/television itself.
Beginnerfags should stick to power-related issues; video issues (excessive motion blur, distorted colors, oversaturation, lines, etc.) are hit or miss and can be as simple as a faulty T-CON board (15-20 minutes to replace, $20-60) or as expensive as a faulty panel (worth more than the television itself).

In many cases, electrolytic capacitors are the main problem. When old with almost no capacity and a big ESR, they can cause secondary faults like shot semiconductors from hi ripple voltage.
And those caps sometimes won`t have a bulge. Get yourself a ESR meter. With that you can find bad caps without taking them out of the pcb.

Then we have cold contacts, oh how I hate leadless
tin solder, suck the fuck out with solder wick for a minute and it`s still in the hole. I have to infuse it with good old sn60pb40 and then repeat with the solder wick but this time, everything goes in to the wick and the component wire is free. Oh lookit me,I`mramblingandzerofucksweregiventhatday.

Next we have old and worn out CFLs in backlights, which can overload the switching transistor on the primary winding of the step up transformer and that can cause a hole in the silicon or a busted winding. When that happens, ordering the single part can get almost impossible and quite costly.
The best way is to order a whole new invertor board with new tubes if possible or if you want, make a custom LED backlight. But that is for those, that don`t care about wrong colors and etc.

The last thing that I would not touch is a broken mainboard. Well only if there is a busted video processor with over 200 pins or alike and there is no way to order a spare one or the whole board, if not then it`s not worth the time or money. Leave it for spare parts if the client decides it`s too costly and he leaves it as trash. No one really likes to take trash home, except dumster divers, packrats and hoarders.

TL, DR
old caps, cold contacts - worth the time and money
busted silicon, old CFLs, invertors - don`t know if want, ask yourself and wallet or client
busted hard to get parts, boards - if yours, leave for spare parts or sell; if clients, advice to get a new one and keep your hands off if you`re not brave or skilled enough

But that is like my opinion, old ham.

I obtained an LG flatron w1934s a few months ago from work. The power light just blinks on it and won't show anything on the screen. I had dissembled it looking for bad caps and didn't see any at the time, so it's just been sitting around. This thread just made me want to look at it again, and I noticed one 1000uf 10v cap had a very slight bulge on the top compared to the rest of them, is this likely my problem?

>>74452
could you give us different symptoms of monitors (flashing light, no screen, comes on for a few minutes then goes off and stays off, etc etc) and what repair is most likely teh answer?