- Sat May 06, 2017 6:43 am
#18408
I will admit I am a bit in over my head when it comes to component selection and understanding how circuits work. I have here a television that I am trying to repair and have narrowed the problem down to a blown mosfet.
In a bid to repair it I purchased a replacement board that turned out to be not compatible with my particular model. The original board came with a D4454 n-channel mosfet and i replaced it with a MDD1051 off the second board. I saw light at the end of the tunnel (for all of a second) before my display when dark again having blown the second mosfet.
At the moment I blame the second occurrence on the absence of a diode between the gate and source. I cant seem to find a suitable replacement locally and would like to know if a TK8P65W can be used in their place. Also before I blow my last chance - literally - could the missing diode actually cause the mosfet to blow out? Turns out I really need a microscope... the backlight driver was clearly blown.
TLDR: Can a TK8P65W be used in place of the D4454 or MDD1051?
In a bid to repair it I purchased a replacement board that turned out to be not compatible with my particular model. The original board came with a D4454 n-channel mosfet and i replaced it with a MDD1051 off the second board. I saw light at the end of the tunnel (for all of a second) before my display when dark again having blown the second mosfet.
At the moment I blame the second occurrence on the absence of a diode between the gate and source. I cant seem to find a suitable replacement locally and would like to know if a TK8P65W can be used in their place. Also before I blow my last chance - literally - could the missing diode actually cause the mosfet to blow out? Turns out I really need a microscope... the backlight driver was clearly blown.
TLDR: Can a TK8P65W be used in place of the D4454 or MDD1051?
- By huramentzefix
- By PSIG