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
42hl196 need help please read.
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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.Last edited by tom66; 03-30-2014, 08:48 PM.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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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.Comment
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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 problemComment
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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.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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by agarn3tI have a Toshiba Regza 42HL196 that would power on for about 15 seconds and then turn itself off. Once off the BLUE light would flash slowly. I could turn it on again but it would only stay on for about 15 seconds then turn off again. I replaced q880 strw6765 however that did not solve the problem. I then found a blown 56k resistor at R8111 next to the large capacitor on the power supply board. I replaced it and the TV works fine now. I would suggest checking for blown ( open ) resistors at R8110, R8111, R8112, R8113, R8114 as they are in series.
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