Hi. I have a samsung le32. It won't turn on and keeps blowing the internal fuse on the power supply board.

Hi Ben.
see if this link helps you find out why.
samsung tv un50eh5300f keeps blowing the fuse Google Search

You can try this:
http://forums.whirlpool.net.au/archive/1675197

Or you can send the power supply board to us to have a look and tell you why does it keep blowing capacitors.

hi if no any light indicator at the front panel, it was a sign of bad power supply board. check first for a blown fuse replace with the same rating. then look for any bulging capacitors. also replaced with the same rating and voltage capacity.hope this can help good luck and let me know if you need further assistance.

if you did find puffed up caps and replaced them consider replacing the power board as there may be other bad parts on it.

Sounds like a power supply problem. Either the internal PSU or the auxiliary power is dead and not providing enough juice to keep your laptop running. If this is happening both with the power cord attached and running straight off the battery, it's most likely the internal PSU.

Hello
If the TV doesn't turn ON ata all, it is surely due to some fault with its power supply regulator section. You haven't given any otehr details of your tV, than it is only a 32 inch CRT Sylvanial Tv. No model number; so I only can provide you a solution in general.
Check the ON-OFF switch for its contact. Normally, TVs uses DPST type switches [Double Pole Single Throw]. If any one contact amoung them have any problem with its internal contacts, the set won't switch ON. If the switch is OK, come towards the power regulator section circuit board, and check whether the fuse has blown out or not. If it has blown out, replace it with same type and ampere rating. Never use higher ampere rating than specified. The ampere rating will be maiked either on the rims of the fuse, or at the printed circuit board, just under the fuse. After repalcing the fuse, switch ON the TV and see whether it works well or the replaced fuse blows up as soon as you switch ON the set. If the repalced switch burns out as soon as you switch ON the set, the power supply section has damaged [shorted components in it]; and should be replaced.
Normally for LCD TVs it will be good to replace the power supply as card basis. This power regulator card can be bought from most of the electronic spare part shops at your town, orby the authorised service center for Sylvania at your town. If you may have given its model number, I could send you the picture of the power card of your TV. OK.

you have a short most likely on the power supply but could be on the mainboard, inverter board, av/input board. The T-con board is fused and should blow its fuse before blowing the fuse on the power supply. I'm going with a faulty power supply, most likely a shorted Mosfet.

The tv have a short in many parts internally in tv power supply board itself could be anythings on the tv power supply board to causes the fuse to blow over and over again.U will never solved it if u don't have all the measuring elecronics equipments and skills and know how to find out.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Hi,
If your unit has no led light lit on the front panel, this is an indication that the power supply board is not working(dead).

First thing to check is the basic, I'm assuming that your outlet is live. Check the continuity of the power cord using the multimeter. Sometimes it has an internal broken wire due to frequent pulling and bending. If the power cord is good, open the top cover of the unit and check the internal fuse. Sometimes due to voltage surge and aging, fuse fail. If this is the case, replacing with same current(ampere) ratings will cure the problem.

Let me know if the fuse is intact or blow again after the replacement to determine the next steps.

Jdvillanueva

Hi Joseph,

Make sure that you replaced the fuse with exact ratings. Low ampere ratings will not handle current as what the original fuse installed. If still fuse keeps blowing after replacing with the same rating, this is an indication that you have a short on the power supply section. It can't be fixed by replacing the fuse alone. Short usually near the AC line where parts like the following are present.

1. Power Cord - even very low of chances but still to be check.
2. VDR
3. Rectifier diode
4. Main filter electrolytic capacitor
5. Voltage regulator I.C.

This is the common parts that might be shorted and made the fuse blew. You may visit the linkhttp://www.fixya.com/support/r8053361-fuse_keeps_blowing for more info.

If you don't have necessary tools and test instruments, and can't do the job yourself, I would advice you to look for a professional to troubleshoot the problem. Don't attempt to work in the power supply if you don't know the safety precaution.

You may also replaced the entire power supply board. Click this LINK to order online.

If you are near to repair shop, you may bring the power supply board to them and isolate the shorted parts, you will save some money rather than sending the entire unit.

Hope I helped you.

Have a nice day!

Thanks for using Fixya.