Help me fix my LCD monitor

[xboomz]

Re: Help me fix my LCD monitor

Here's a quick guide which might help you troubleshoot SMPS. I have found it quite useful myself

http://repairfaq.org/sam/smpsfaq.htm

Wow, what a great help! I really appreciate! I'll look through this, thanks agent24!

[Agent24]

Re: Help me fix my LCD monitor

Here is what went. I noticed that one solder ball(of a capacitor that I was going to change) extended to another(of a resistor) making it look like a solder strait. But I didn't care since it had been as it was, and I resoldered as it was. I was testing the monitor everytime I changed one cap, and I don't know if it was right after I resoldered the one linked to resistor, the fuse cut off.

I don't fully understand about this part, was the solder from the capacitor to the resistor meant to be there?

have you removed the solder and checked if the pads are supposed to be joined, etc, to find if you caused the short or if it was already existing somewhere else?

[xboomz]

Re: Help me fix my LCD monitor

I don't fully understand about this part, was the solder from the capacitor to the resistor meant to be there?

have you removed the solder and checked if the pads are supposed to be joined, etc, to find if you caused the short or if it was already existing somewhere else?

Unfortunately, I didn't have any knowledge to judge whether the two solder balls were meant to be joined or not. I just supposed that it should be so since I remembered that it had been so.

Yesterady I separated the two points by removing some solder in the middle. But the result was the same, the coil of line filter sparked again and the fuse blew. I wasn't sure if it was caused by broken line filter but I thought maybe the jointed solder wasn't the cause.

[Agent24]

Re: Help me fix my LCD monitor

Test the line filter for short circuit, it may have become short circuit after it melted

[momaka]

Re: Help me fix my LCD monitor

I agree, test the line filter and also the bridge rectifier. If neither of these are shorted, start checking other things on the primary side until you find the problem. Let me know if you need help with anything, I now have the same monitor here to fix and can provide guidance if needed.

And if nothing works in the end, I think it's even possible to wire this monitor to an external power supply.