Check power settings see if set to turn off 15 min
SOURCE: mitsubishi DLP overheating
check your air intake filters, it's a removeable filter in the air inlets.
SOURCE: Hi, I have 52 inch HDTV
1. Try this - hold the menu button down for 10 seconds. TV should power up; you
will have to turn off front panel
buttons on menu.
2. You can also try a hard reset: Unplug TV from AC mains and remove all cables
from TV. Wait about 30 minutes and re-plug to AC power and redo the cabling.
Switch on the TV and see if it works..
3. Powering down the set or putting it in standby may have
allowed the power supply to cool. Weak capacitors often go out of spec when
they cool, thus preventing a section of the power supply from firing up
properly again. There is a simple trick...just warm the back of the TV with a
hair dryer for 5-7 mins after you have unplugged the TV. Look for the little
areas of holes in the back panel of TV. Use these as your guide at where to use
the hairdryer, but don't hold the dryer too close (say 5-6inches away). (Make
sure the dryer is on High heat). If the TV doesn't turn on after you have
heated it up (like it tries to come on but then turns off) you need to unplug
the TV again, this resets it. And repeat those steps till it works. Resetting
the TV after it fails to turn on is the key. Also, just leave the TV on. Don't
turn in off. Since it is LCD, it doesn't take much power...only a few bucks
extra a month for your utility bill.
4. A circuit board may crack about some of the larger
components mounted on it. You can inspect the PCB's for fractures, and then
repair them. It may also be poor soldering that has failed. I would be checking
for these things first.
5. If you want to go in for a long term solution, you can easily replace the
whole power board or just change the faulty capacitors. You will have to open
the back panel and take a look. You can make out which are faulty, because
their caps will be swollen on top. Here's a sample pic of a bust capacitor (not
same model):
Check the specifications of the faulty capacitors, and get the replacements
from your local electronics shop. If you are comfortable with this, you can use
a pair of needle nose pliers to G-E-N-T-L-Y pull out the defunct capacitors.
Once that is done, solder in the new capacitors carefully. If are unsure how to
do this, try to get a friend who knows how to do this kinda stuff do it for
you, or get a qualified technician. Warning: If you do not
have a background in electronics repair, or are inexperienced, get a qualified
technician to do it for you.
REMEMBER there are very dangerous voltages inside a TV
that can KILL. Be sure to work SAFE when dealing with electricity. DISCONNECT
THE POWER BEFORE YOU DO ANYTHING.
If all this does not work, it could indicate a problem with the power board, which may have to be replaced. Scout around for various quotes, and if you feel its worth it, go in for repairs. It only 3 years old, after all. However, if you feel that the repair is not worth it, then think about getting a new TV..
Hope that helps!
If your issue is
not resolved, please do not assign a rating just yet. Please post back as
to what steps you took, results, etc, and I will try to assist you further as
best I can. I am here at your service.
P.S. - You can rate a solution with one of four
ratings as explained under (remember that at times a bit of to and fro dialogue
may be necessary to resolve an issue).
Thank you for using FIXYA!
IrishDruid
SOURCE: need to get a new power supply for my samsung monitor
you first look the watt on the power supply and if same watt power supply is available then connect because power supply has overload protection it will not work also look the connecter is matching if not then purchase only original power supply dont chase the duplicate it will consume more money
SOURCE: jvc av-32fa44 tv--loud pop, then off and won't turn back on. buy new?
Its the power cap mine did the same thing about 11 months into daily use
SOURCE: power cut off and won't turn back on
The board you need to replace is the power supply board. The board# is BA71F0F01042. Your power supply board should have the same number on the lower right side of this board.
The problem is the 6 Transformer Inverters that power up the LCD screen. If one blows out, the TV will go into protection mode like it's doing now. All the Funai TVs are having the same problem. Because, it uses the same parts.
The board is hard to find right now. Only three places I know of to find it.
Ebay,
Discount-Merchant.com,
and Shopjimmy.com
Sadly, nobody has them in stock.
I wish I had a extra board to sell you, because I know how to repair it. I have the schematics diagrams and part# for the pieces on the board.
If you ever come across a replacement board, let me know. I would like to buy your old board. Here's my e-mail, [email protected]
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