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Our LG TV turns itself off after an hour or two...sometimes

Our LG TV turns itself off after an hour or two...sometimes longer. Then we can't get it back on until the next day. Is there anything I can do?

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Anthony_Infotech

Self Employed

Vocational, Technical or Trade Scho

17,114 satisfied customers
My Sharp lc-52sb55u has flashing power light about once per

My Sharp lc-52sb55u has green flashing power light about once per second, I have replaced one at a time power supply brd, main logic board, T-con brd in that order. Problem still there. Hold on Input button and Volume down button and power on, I get steady green power on light, video channel box in upper right corner flashes on, "k" setup box on left side of screen flashes on and all fluorescent tubes light for a few seconds. This whole process lasts about 13 seconds and then the relay on power supply board clicks and it goes back to flashing green power light (it is repeatable as many times that I've tried it). Also notice during 13 seconds of power staying on a red led on my main logic board flashes and also goes off after relay clicks. Trying to find a place to measure the 3.3v voltage that seems to affect power on standby feature. Replaced all my original boards back and both sets of boards have the same symptoms. Can of lost at this point. Wonder if any errors are viewable via the RS-232C connection with PC & Windows XP hyperterminal?JA: Can you guesstimate how old your Sharp is? And just to clarify, what's the exact model?Customer: 8 years old and model is LC-52SB-55UJA: Does the TV menu work? Do you have the same problem on all sources/inputs?Customer: Push menu during the flashing power light and 13 seconds of power on and no respond from anythingJA: How long has this been an issue? What happened right before this popped up?Customer: Just watching tv, screen kind of went blank twice then flashing power light, remote control would not turn set on or off, unplugged, wait minute and plugged back in and the rest of the story I have just told you.JA: Anything else you want the TV expert to know before I connect you?Customer: I'm just a do-it-yourselfer, some electronics background, and researched on internet and this seems to be a pretty common problem. Did read about firmware failures could cause something like this, my model has one firmware update that has not been installed.

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Master Fix It

Appliance Repair Technician

Bachelor's Degree

14,398 satisfied customers
I Have a UN46EH5300F LED tv. The other day, the picture

I Have a UN46EH5300F LED tv. The other day, the picture flashed on and off and then went dark. I have sound. The power supply board shows scorch marks where the LED Driver section is. I have replaced the power supply with no change. What is most likely the fix?

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Anthony_Infotech

Self Employed

Vocational, Technical or Trade Scho

17,114 satisfied customers
I.have this TV along with Direct TV I went to turn TV off

I.have this TV along with Direct TV I went to turn TV off with remote and hit wrong button and it caused the picture to go zig zag is there any to fix itJA: What's the make and model of your tv? Have you had any issues with the picture before?Customer: No other issues the TV is about 12 years oldJA: Does the TV menu work? Do you have the same problem on all sources/inputs?Customer: Yes menu works it has the + and - button and up and down arrows all the other TVS in house work fine it's a KV 32FS100JA: How long has this been an issue? What happened right before this popped up?Customer: 4 days I tried to hit remote button to turn it off and I think I hit wrong button the the picture rolls and zig zagsJA: Anything else you want the TV expert to know before I connect you?Customer: Pearl it looks like the picture just needs to be adjusted like horizontal or vertical

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Anthony_Infotech

Self Employed

Vocational, Technical or Trade Scho

17,114 satisfied customers
I have model AQUOS-LC 60LE650U yesterday I was watching TV

Good morning. I have model AQUOS-LC 60LE650U yesterday I was watching TV and the screen went black w/o any other symptoms and the LED on/off light blinked three times and then one time quickly and has continued to do so since. By a YouTube video trouble shoot (it sounds like I may need a Power supply board (DPS-167CPA). I have no idea really how to do any of the repair work.JA: What's the make and model of your tv, and can you guesstimate how old it is?Customer: Sharp, I think purchased in 2012 from Bjorn's Audio in San Antonio TX (close to where I live).JA: Does the TV menu work? Do you have the same problem on all sources/inputs?Customer: Nothing. Black screen. Changed the remote control batteries, did a hard restart of the cable box, but have not pulled the unit off the wall (needs to big people to accomplish) and have not unplugged from power source.JA: How long has this been an issue? What happened right before this popped up?Customer: Problem began last night 13 SEP 16. It was operating as normal when it just went to black w/o audio or visual input. (no foul weather, sunny out). No power surges in the home.JA: Anything else you want the TV expert to know before I connect you?Customer: I think that's about all. I do want to say that I am not at home, where the set is currently and I am very technically "challenged." We only use the set for TV and Blu-Ray viewing though it has many features I don't have the intellectual curiosity to explore.

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Mike G.

Television Repair Technician

Vocational, Technical or Trade Scho

9,554 satisfied customers
On our Sony Bravia KDL 52 4100, Static appears when we use

On our Sony Bravia KDL 52 4100, Static appears when we use remote commands, like volume, or input changes. It's as if the TV is having a problem processing the command from the remote. So, instead of the action commanded, we get static that affects the picture for several minutes. This problem just started and happens in other input settings. So, it's not a cable company problem.JA: What's the make and model of your television? And is the remote the same, universal, or for another device?Customer: Sony Bravia KDL 52 4100. We use the Frontier Fios remote.JA: Does the TV menu work? Do you have the same problem on all sources/inputs?Customer: Yes. Same problem.JA: How long has this been an issue? What happened right before this popped up?Customer: It seemed to start the night before last. I saw a message from Frontier that the batteries in the remote needed changing. I changed the batteries. But, I don't think that would cause the problem, would it?JA: Anything else you want the TV expert to know before I connect you?Customer: No.

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Mike G.

Television Repair Technician

Vocational, Technical or Trade Scho

9,554 satisfied customers
I bought an old Hitachi xp 1200 multi media projector on

I bought an old Hitachi xp 1200 multi media projector on ebay. It has some kind of a security key that sends or feeds back into the computer through the RGB video connector. How can I clear that out. I contacted the University of Arizona where the projector was originally used. The lady that I spoke to said that she would send out an e-mail to the techs that might could help to call me but I have not received a call. Is there some way I can clear this security to return to original settings. I can't find any information on this in the manual.JA: Can you guesstimate how old your Hitachi is? And just to clarify, what's the exact model?Customer: Probably 9 or 10 years.JA: Does the TV menu work? Do you have the same problem on all sources/inputs?Customer: I'm only using the rgb video. I use it in the church I pastor and it is overhead and hard to reach. It being old, has no hdmi connections for the newer laptops I am using in the church.JA: How long has this been an issue? What happened right before this popped up?Customer: I just replaced an old projector just like it. I was having problems with the remote control. I know that the remote is working properly because I use it on the replacement projector I bought from ebay.JA: Anything else you want the TV expert to know before I connect you?Customer: No. Thanks

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Louie

Senior Technician

Associate Degree

6,896 satisfied customers
I lost pitcher ... 70" smart lid, not even 2 yers old, not

I lost pitcher ... 70" smart lid , not even 2 yers oldJA: What's the model number of your TV? How old is it?Customer: not even 2 years....yust a minut ...im gona seeJA: Does the TV menu work? Do you have the same problem on all sources/inputs?Customer: tv remot works , i turn onJA: How long has this been an issue? What happened right before this popped up?Customer: just hapen about a 10 days ago....no isue before ...i no few times turn on by self after i turn of.JA: Anything else you want the TV expert to know before I connect you?Customer: i don't think so

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Anthony_Infotech

Self Employed

Vocational, Technical or Trade Scho

17,114 satisfied customers
No rgb signal on my vizio tv, be right back. let me look,

no rgb signal on my vizio tvJA: Can you guesstimate how old your Vizio is? And just to clarify, what's the exact model?Customer: be right back. let me lookJA: Does the TV menu work? Do you have the same problem on all sources/inputs?Customer: model va22OE. mfg date. Dec. 2009. just showed up when I turned it on tonight.JA: How long has this been an issue? What happened right before this popped up?Customer: working fine on cableJA: Anything else you want the TV expert to know before I connect you?Customer: how much does this cost? and what does connect you mean?

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Viet - TV Tech

Computer Technican

Bachelor's Degree

45,950 satisfied customers
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