Look for the resistor value in the BenQ G922HDAL monitor's power supply

[Safrilhg]

Hello guys, I had a problem where I didn't know the value of the burnt SMD resistor in the power supply circuit of the BenQ G922HDAL monitor.


In one of the parts, there is a burnt SMD resistor which leads to the LD7560GS IC as shown in the picture below.



How to determine the appropriate SMD resistor value for this condition? Thank You

[harp]

Re: Look for the resistor value in the BenQ G922HDAL monitor's power supply

You have the way more damage then only this resistor. It is current sense low ohm resistor, according to pinout.
So, mosfet, and a bunch other resistors arround is fry, pcb tracks, after connector...

[CapLeaker]

Re: Look for the resistor value in the BenQ G922HDAL monitor's power supply

I say it can’t be much resistance. Seeing a 47 Ohm resistor next to it, that’s what I would put in to start with.

[Safrilhg]

Re: Look for the resistor value in the BenQ G922HDAL monitor's power supply

Should I use the same ohm value as the resistor next to it?,

[Safrilhg]

Re: Look for the resistor value in the BenQ G922HDAL monitor's power supply

You have the way more damage then only this resistor. It is current sense low ohm resistor, according to pinout.
So, mosfet, and a bunch other resistors arround is fry, pcb tracks, after connector...

OK thanks for information, But I will try replacing the resistor first, if it burns again I will check for damage to the line, but in my opinion, the resistor burned because a pin was short-circuited due to corrosion.

[Safrilhg]

Re: Look for the resistor value in the BenQ G922HDAL monitor's power supply

I say it can't be much resistance. Seeing a 47 Ohm resistor next to it, that's what I would put in to start with.

Should I use the same ohm value as the resistor next to it?,