42hl196 need help please read.

[audiofreak19]

So I think I fudged up my power supply on my 42hl196. I was replacing one of the reg. One of the 3 common ones you replace. It's the one that has 3 in front and 3 prongs in back. Anyway. I'm getting a power protection light cause I think I burnt the pads where you solder them and they make contact to the board. Is there anything I can possibly do to fix this. Cause I can't find one to buy and their expensive as crap

[tom66]

Re: 42hl196 need help please read.

Pic of the damage?

[audiofreak19]

Re: 42hl196 need help please read.

Here's one

[audiofreak19]

Re: 42hl196 need help please read.

The bottom one on the right side of the 5 is the one cause I couldn't get solder to stick to it. It wanted to stay on my iron.

[tom66]

Re: 42hl196 need help please read.

Solder not sticking to the board should be a "STOP!" moment. You are probably doing it wrong.

You ALWAYS, ALWAYS apply solder to the component lead then heat up the component lead. Never apply it to the iron except to tin and clean the iron (do not drag solder from iron to lead.) If this does not work your iron is not powerful enough or has poor regulation & you need to get a better one.

Clean up all of that solder and check for pad damage. If there is none you probably just have a cold solder joint or six... I really hope you did not intend on returning/selling that item with that soldering because that is going to fail very quickly if it ever did work. Remember to cut the leads off... a £1.99 eBay sidecutter / right angle cutter will do the job fine.

Some flux cleaner / IPA may also be worthwhile but not critical.

[audiofreak19]

Re: 42hl196 need help please read.

yea that is the worst solder job i have ever done. I have had this tv for a while and it was one of the first solder jobs i have done. What if there is pad damage. Because I remember when I was doing it and scraping some of the burn marks off the pad came up on i think just that one. what can i do if the pad is damaged or gone.

[wills123]

Re: 42hl196 need help please read.

if there is damge you would need to track where it goes and put a jumper lead in, or scracth back to the copper trace and solder to that.
remove all the old solder, clean it up and then you will see if there is a problem

[tom66]

Re: 42hl196 need help please read.

The best you can do is scrape back the green soldermask exposing the internal (orange) copper layer, then solder to that.

[audiofreak19]

Re: 42hl196 need help please read.

ok thanks.