Question about Televison & Video
So I got this Bush TV a while back and I noticed something about it fairly early in the fact that it would stop working for approximately 12 hours if I unplugged it from the wall? it didn't bother me too much though because I'd just leave it plugged in at all times, now it did this every time I unplugged it until about a month ago, my brother came around and accidentally unplugged it from the wall and ever since it has never turned on again? It just stays in standby mode and will not turn on no matter what I do, I've tried every button on the TV & every button on the remote but neither does anything, could it have anything to do with the TV fuse? this is really beginning to bug me now because its not under warranty anymore and I can't really afford to buy a new TV just yet so I'd love if someone has solution! This is what it says on the back of the TV by the way! BTVD91216B Bush 19" HD Ready Digital LCD TV with built-in DVD Player AC 230v - 50Hz Power Consumption : 45W
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Posted on Jan 02, 2017
The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.
The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board. You might be lucky it's just a blow fuse. Also a defective transformer can cause your TV not to power on.
All these can be checked on the power supply board.
But more often bad capacitors causes problem on the power supply board. I do not think the power board needs replacement, rather those defective capacitors is causing this issue. Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.
The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)
You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.
What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).
You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors). After replacing these capacitor(capacitors) most likely the normal operation will be restored. Or you can by a refurbished complete power board to save you some stress.
Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.
If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.
I hope this helps.
Posted on Jun 17, 2011
SOURCE: tv stuck in standby
I believe these Sony TV's have a built in obsolesence and Sony does not care about fixing them. I don't think a 7-year old TV is an "old model". Who can afford to by an expensive TV every 7 years. Shame on Sony.
Posted on May 01, 2007
SOURCE: DVD player stuck in standby mode
Bad caps in the power supply is causing this. C17 (10v,470uf), C17,c14 (10v,1000uf) and C18 (10v,470uf). Replace with same capacitance values but 25 volt rating 85 C. Just fixed mine half hour ago works great.
Posted on Jan 22, 2008
The problem IS PROBABLY BEING CAUSED BY A SHORTED POWER REGULATOR (MX084 ) OR AN OPEN FUSEABLE RESISTOR IN THE POPWER SUPPLY...
thank u rate me!!
Posted on Feb 12, 2009
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