20 Most Recent Sanyo DP50747 50 in. Plasma TV - Page 7 Questions & Answers

Have you check the wires in the back because I know sometimes it can short out the tv??

If the TV gets on, there are no blown fuses inside. Check your power outlet for any loose contacts. It could also be a problem with the power cord. If these are ok, It is actually going into protection mode, due to some board/component failure. This needs the attention of a service technician.

This might require attention by a qualified service technician.

Sounds like a bad main board !!!

t-con board

Unless you are able to open set safely and check voltages and other things consider taking it to a shop and getting an estimate for repair.

Trouble is most likely in the power supply of the unit---voltage there is changing with scene changes---have the set looked at--the power board if causing this will be by checking voltages when normal and then when bad show if one or more voltages are changing a lot.Now might be the time to deal with it as it should at some point get much worse and hence more expensive to fix.

A component in the TV is failing and is not receiving correct voltage, which is causing the TV to enter " protection mode" and shut off. Could be any part of the TV but I would start with the power supply and go from there. For more info post the model number of your TVHere is some basic info on testing the power supply.TV Power supply general info

A component in the TV is failing and is not receiving correct voltage, which is causing the TV to enter " protection mode" and shut off. Could be any part of the TV but I would start with the power supply and go from there. Here is some basic info on testing the power supply.TV Power supply general info

Tries tv unplug,replug it back like about an hour later.The tv should resetting itself back to the factory setting.Now,the tv should be working again.If tv have the same result,the tv power supply board is the causes and the problems.That the board,where the power a/c cord plug into it.Try website like Ebay.com to buy a refurbish power supply board for the replacement.

I see so many here with no sound/nopicture issues: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.

Your problem is plaguing the industry and cries out to be solved. The most common cause is the connection from the flexcable to the panel itself, not the soldered connection to a circuit board. Unfortunately, you can't reattach the flexcable to the glass panel without the use of specialized equipment.Hopefully, you are still in the warranty period or have purchased and extended warranty, because only your Sanyo certified technician can solve your problem.By the way, you are not alone because every manufacturer is experiencing the same problem(s).

I see so many here with no sound/nopicture issues: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.

There is an internal fuse if could be blown. If the fuse is good you might try reflowing the solder on the power board.