[GTALUG] war story: fixing an LCD TV

[Clifford Ilkay]

For the benefit of others, I would highly recommend Rosebud Technologies in
Markham if you do not have the time, ability, or inclination to repair your
broken electronics yourself. http://www.rosebudtech.ca/

Regards,

Clifford Ilkay

+1 647-778-8696


On Thu, May 30, 2019 at 1:43 PM Don Tai via talk <talk at gtalug.org> wrote:

> Congrats. One less monitor in the landfill! I strive to repair all I can.
>
> On Thu, 30 May 2019 at 13:41, D. Hugh Redelmeier via talk <talk at gtalug.org>
> wrote:
>
>> My 39" UltraHD TV, the one that I used as my main computer monitor for
>> almost four years, stopped working.
>>
>> The symptom was that it just would not turn on.  The status light below
>> the screen stayed red, meaning something like "standby".  Normally it
>> turns blue when I'm using it.
>>
>> Googling and watching YouTube videos convinced me that there was a chance
>> that I could repair it.  LCDs seem to have certain standard PC boards.
>>
>> - T-Con (timing control)
>>
>> - power supply
>>
>> - processor
>>
>> - LED light & video driver
>>
>> Replacement boards are reasonably inexpensive, apparently from chop
>> shops (i.e. they buy broken TVs and sell the working parts).
>>
>> This shows someone fixing my model of TV.
>> <https://www.youtube.com/watch?v=XD7rIEgYULI>
>>
>> From my research, it seemed as if the most likely problem would involve
>> the power supply module.  I could get one for US$~20 + ~$20 for shipping.
>>
>> I opened up the monitor and examined the entrails.  There was a burnt
>> spot
>> on the power supply board.  I posted my problem to the BadCaps.com forum
>> and got encouragement that a little bit of solder would fix the board.  I
>> tried this, and it worked.  At least for now.  I'm using the monitor to
>> compose this mail.
>>
>> <https://www.badcaps.net/forum/showthread.php?p=898646>
>>
>> I spent several hours researching and perhaps an hour disassembling,
>> soldering, and reassembling.  It might not have been worth that time
>> given
>> the value of the monitor ($350 original price, but used for 4 years and
>> obsolete).  I find it satisfying to fix a hardware problem, even though
>> I'm a software guy.
>>
>> Summary: not all hardware problems are hard.
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