Question about Sanyo CLT2054 20 in. EDTV-Ready LCD Television

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Blown fuse I looked inside the set, but did not see a fuse. Would you happen to know where the fuse would be located? I looked at the location of the power cord connection but did not see one there. Thank you much!!

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Hi,you can locate the fuse near the power supply section,if there is power cord connection i think it is battery operated then check the battery.


hope it may help,

regards

Posted on Sep 10, 2008

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Red standby light flashes but won't turn on


Depends on number of flashes.each set of numbers points to different error codes for make and model.usually a sign that on of the main boards has failed or a thermal fuse has blown.you can source replacement panels quite cheaply on eBay but always disconnect from mains before attempting to look inside your TV set.check for areas for telltale signs such brown marks or swollen capacitors...google to find location of thermal fuse for your make and model tv.

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Not knowing the model first is if total dead follow power cord inside the set (presume you can safely take back off) and to the fuse---look for a blown fuse where cord connects.

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Inside the set one or more on power board and elsewhere may be more.

general info:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have to buyand try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.If set is opened at least look for puffed up and bad caps like in thisphoto.
5_30_2012_4_38_17_pm.jpg5_30_2012_4_38_34_pm.jpg

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1 Answer

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May 24, 2012 | Philips 50PFP5332D 50 in. Plasma...

1 Answer

I have a 1 year old Sanyo Vizon HDTV and was watching a show when it suddenly just shut off and would not go back on again. No storms or any other power surges and it is hooked up to a real surge...


Hello
If there is no power indicator LED lights up when the set is sitched ON, the power regulator section inside your TV is faulty. There is a fuse [glass cartridge type]; on the power regulator board. If this fuse blows OFF the set won't switvh ON of the front power light won't light up. Check this fuse first. You can locate it at its power switching regulator board inside, where the AC power goes straight to it after a filternig circuit. If the fuse is blown out, replace ti with same rating. It ratings will be marked either on its edge rims of on its body by colour code lines. Replace the the fuse; if it has blown out, and switch ON the TV. if the replaced fuse also gets failed, do not put any fuse after, the power supply section has some short with it. It is best to replace the power supply board as a card absis; rather than making "surgery" to it. Some components in it will be very difficult to get too. You can buy a new power board from /Vizio Authorised Service Center at your town. OK.

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1 Answer

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Look where the power cord plugs in to the back of the set. On a typical Westinghouse flat panel TV, it goes to a steel box with a line filter inside it. There will be a green wire from there to the frame of the TV and two more wires (on mine they are blue and brown) going to a connector on the power supply board. The fuse will be on the power supply board near that connector.

If this fuse is blown, simply replacing it will simply give you another blown fuse. You need to find and fix the problem that blew the fuse, usually a shorted diode, switching regulator chip or transistor on the power supply board. DON'T try to cheat with a bigger fuse (I'm sure you know better, but I've heard of a few guys who tried a screwdriver across the fuse contacts - a good way to cause a lot more damage). Leave the set unplugged, and use an ohmmeter to check for shorted semiconductor components.

More commonly the fuse is good, but a shorted diode or bad capacitor in the secondary side of the standby power circuit (on the power supply board) is keeping the set from working.

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1 Answer

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1 Answer

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1 Answer

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I think what has happened is that your power supply malfunctioned and what has happened is that a capacitor has blown up. I would suggest that you do a complete search of the power supply to determine the location of the blown capacitor, I would advise getting a schematic to aid you in this. If you don't have experience in electronics I would also advise taking the set to the shop or calling a repairman to take care of this issue.

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