This repair kit works for many different TV model numbers. We have included a full list
of those model numbers in the video description. This repair kit will fix the following symptoms.
If your TV audio does not work on any of the inputs. If your TV turns on briefly, has no
video on the screen and shuts off and then comes back on and then shuts off and repeats
those steps over and over again. If your TV does not turn on and if the red
power LED blinks continuously. The large chip in the image is the audio chip
that fixes the audio input problems. The other integrated circuit and capacitor, repair the
other symptoms that we just described. There are three different component at that
we will replace on this board. Two of the components are on the back side of the board.
And one component is on the front. I will start by replacing the audio chip first.
I will begin by using my tweezers and heat gun to remove this chip.
I start by applying heat to the center of the chip as there is a center pad underneath
the chip. I will also apply heat to the legs to loosen the chip. I use my tweezers to grab
the legs and feel if the chip is loose. After it is loose, then I will pull the chip
from the board. I will then clean the pads using solder wick
and my solder iron. I place the solder wick onto the board and then apply pressure using
my solder iron. The solder wick will suck up the existing solder that is on the board.
Next, I will put a few dabs of solder paste onto the pad. Then place the chip on the pad
and get it lined up with the legs
and the pads. After I have the chip in place, I will use the heat gun to melt the solder
paste and adhere the chip to the board. I am holding the heat gun a little bit higher
above the chip, because if I was too close, it may cause the chip to move.
I will not solder the legs that are on the chip. I start by applying solder flux onto
one side of the chip that you will solder first. Then I will add a little bit of solder
onto my iron and run the iron tip over the legs. I will rotate the board and then use the same
process on the other side of the chip to solder the legs to
the board. If you have any solder bridges between the
legs, you can use the solder wick and iron to remove the solder and start over again.
I will use some rubbing alcohol and a brush to clean up the audio chip. Typically when
I clean a component, I use a q tip, but the legs on this chip are so close together that
it will be better to use a brush. Now that we have replaced the audio chip,
I can replace the other two components on the back of the board. Once again, I will
use my heat gun and tweezers to remove the components from the board.
After I have removed the components, I will use my solder wick and my iron to remove the
remaining solder from the board. Next, I will add solder paste to the following
pads as shown in the video. Then I will place the components on the board, using my tweezers.
For this component, I will use my tweezers to guide it into place. As the solder paste
heats up you will see the component shift into place on
the board. For the last component, I will begin heating
up the center pad to that up the older paste and adhere the chip
to the board. Next, I will solder this chip to the board.
I will put some solder flux onto the legs of this component and then put a little bit
of solder onto my iron and run the tip of my iron over the legs. Then I will do the
same thing on the other side of the chip. After I have soldered the chip to the board,
I will clean it up by using some rubbing alcohol and a q tip. We have successfully replaced
the three components on this board. Your board is now ready to be re-installed back into
the TV. Thank you for watching one of our many tutorials
here at Shopjimmy.com.
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