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Old 09-08-2021, 04:47 PM   #1
bohaboha
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Default question about tv main board processor temperatures

Hi,is it normal that the large processor on the TV mainboard has different temperatures ? it is a square the lower part 48c, left side 53c, right side 80c, and top 62c seen from below
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Old 09-08-2021, 06:43 PM   #2
diif
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Default Re: question about tv main board

How are you measuring the temperatures? Its unlikely something would be 80c next to 42c due to conduction.
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Old 09-08-2021, 07:39 PM   #3
bohaboha
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Default Re: question about tv main board

Hi i an using an infrared thermometer 5 cm to the object
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Old 09-09-2021, 12:22 AM   #4
diif
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Default Re: question about tv main board

As you've found out they aren't so accurate if shone onto a reflective surface. Put a piece of matt tape on the area you want to measure and move the 111gun away slighlty as per the instructions.
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Old 09-09-2021, 04:43 AM   #5
bohaboha
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Default Re: question about tv main board

thank you for the answer diif but is it normal with different values ​​on the same chip,I try to find the short on that TV and I happen to put a finger on the mainboard cooling protection in the middle and felt that it was a little warmer I pulled it off and found that value. I will try with your instruction but what is the purpose of putting the tape on the area you want to measure? do that not decrease the value?
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Old 09-09-2021, 05:29 AM   #6
diif
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Default Re: question about tv main board processor temperatures

As I have already written it is highly unlikely to have a difference of 30c on a processor or anything small. It's measuring inaccurately due to the reflective surface and also its far too close.
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Old 09-09-2021, 05:55 AM   #7
bohaboha
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Default Re: question about tv main board processor temperatures

Aha ok I have misunderstood your explanation, can you say how far from the chip is the right distance? I will measure with TM-902c to see the difference even if the feeling of the fingers is not so bad
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