Need help with SMD resistor equivelant.PS42Q96HD

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Samsung Television

Repair guides and support for your Samsung TV.

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moggy01 @moggy01

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投稿日: 2020年1月10日

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Need help with SMD resistor equivelant.PS42Q96HD

I have this PS42Q96HD SAMSUNG TV WITH A SMD RESISTOR MISSING ON THE POWER BOARD B44-00194A

( with 302 on top in position rs828 on board which says it is 3kΩ ± 5% ),

And i am wandering if i could use another with higher rating As mine is missing if so what could i use meaning either number on top or the amount of ohms I am showing on picture the position on the board as it is missing

Thankyou in advance guys

Hi Jayeff Sorry for not explaining correctly Its just i have loadsa various psu boards and wandered if i could of used another smd to replace the one marked 302 on top as in pic as they don`t have that on on them.Would just need to know the number on top to see if ii have a one that would do same job properly,Thnx.

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jayeff @jayeff 評価: 496.4千 11 384 1.5千 · Answer 1 · 2020-01-10T20:55:58-07:00

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jayeff @jayeff

評価: 496.4千

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投稿日: 2020年1月10日

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Hi @moggy01

What do you mean by rating?

If you mean power rating that is not a problem.

If you mean the resistance value, I wouldn’t stray too far away from the specified resistance value as its’ value was selected, in conjunction with RS827 and that of the opto coupler, to set the required base voltage level for QS807.

It already has a low tolerance value of 5% so the circuit designers didn’t want the resistance to vary more than between the range of 2850 - 3150 Ohms.

Here’s an image taken from the schematics for the board.