I received this television from a customer who wanted it checked by a technician.
She told me that she suspect a loose cable and hence minor
I checked the voltage and found they are present even on the
secondary side of the power supply.
I also noted some components were getting too hot on the
secondary side (Never torch components on the primary side unless if you power off
and remove the power cable from the outlet) and since the power On led was off
means the microprocessor was also not getting power.
I decided to do new motherboard replacement, getting these
boards in my market is quite easy.
I visited the shop and I was back with one which was exactly the
same and therefore I expected easy fix, plug and play.
And yes the television fired on beautifully from the back I could
see backlights are on.
Turning to the screen I noted the picture/image were upside
down like you can see below.
I did some Google search about this issue and realized it is quite common.
The solution was to use remote control to access the factory
In my case I had no remote control and the way out was to
change the memory ic. From the old board to the new board.
Memory ic on the old board
After replacing the new memory ic with the old one from the old board the problem was solved as you can below.
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See you in the next class