Question about Akai LCT2715 27 in. LCD Television
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Posted on Jan 02, 2017
SOURCE: akai LCT 2715
This problem is with fair certainty the power supply.
Modern power supplies are designed to shut down if the current drawn exceeds the design level which indicates that something the supply services or the supply itself has died.
If you are adventurous, you might pull the plug on the set, gain access to the innards, and with good light, inspect any boards inside. If you see one that has few ICs but many more larger discrete parts, this will be the power supply.
You are looking for components called electrolytic capacitors that are almost always cylindrical and mostly installed upright at 90 degrees to the board with leads passing through to the solder side.
This same type of component in smaller dimensions is also still used in a horizontal package with leads bent down and passing though holes to the solder side.
The latter are becoming more rare since they don't lend themselves well to robot assembly.
Many (not all) will show signs of pregnancy when they fail, bulging unnaturally when compared with others. Now and then, there may be traces of a crystalline deposit around the end where the seal failed from internal pressure.
These will have values listed on them in uFd & VDC and sometimes, a plus/minus number lying about the precision.
Some also have a date code (rarer) that will look like four digits:
2403 = 24th week of 2003
Most electronics suppliers have a stock of the various values but if they have a date code at all, try to get only those made before 2002 or after 2006. The caps made between those years may be bad when new.
The larger caps will probably be OK since the failure is likely related to functions other than brute-force filtering. A pretty good 'rule of thumb' is to replace any caps you see bulging that are 100 uFd or less. If you don't mind a few nickels more, insist on 'low ESR' capacitors.
If you choose to replace these yourself, you will need a quality soldering iron with a small, preferably iron-plated tip, rosin core solder and a sponge which when wetted is used to frequently wipe oxidized solder from the tip this should be kept bright and clean and fresh tinning will keep it that way.
You should also buy some solder 'wick' with the iron; this is used to place on the solder you wish to remove and then heated with the iron. Properly used. the wick will absorb nearly all of the solder from the lands from which you wish to remove a component.
A good source for any of these things is http://www.mouser.com/ They have a huge inventory of parts, fair prices and no minimum billing.
Posted on Sep 16, 2008
i cannot find the model # to my akai tv/dvd combo where is it? AND ALSO I DO NOT HAVE THE REMOTE TO IT LOST IT DURING MY MOVE. HOW CAN I PURCHASE I NEW REMOTE OR WHICE UNIVERSAL ONE SHOULD I BUY! PLEASE HELP
Posted on Nov 12, 2008
SOURCE: lcd akai 2715 blinking red light
The solution at this point would be to get the power supply repair since new boards are not longer being manufactured. In about 95% of the time if the LCD doesn't power up or turns OFF by itself or need to be unplug for some time to make work again; those are the symptoms of a dying or defective power supply.
I service these power supplies, for more info write to firstname.lastname@example.org
Posted on Nov 27, 2008
On my Akai LCT2715---- Ok, I had the same problem with locating USER MODE (even called Akai service HELP and that person didn't know anything)!!! even tho we looked through manual just got TV back from putting $184 in Capacitors repair (PUT IN NEW NICHICON CAPACITORS) from the standby button not woking just flashing from the Power Supply gone bad plus 2 main capacitors other than power supply that were bad. Works great now. For the USER MODE look on the remote in the bottom black area repeatedly push the P.MODE. You should have full function to adjust all in menu list WE DID.
Posted on Mar 19, 2009
The failure with your LCD might be due to defective capacitors in the power supply. These parts become defective due to excessive heat and fail prematurely If you are able to DIY, you can check the picture to see how defective capacitors look like.
Posted on Oct 02, 2009
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