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Want to replace resistors myself, but need an advice

weiyann83 10 months ago

based on documentation it show 2.2 1/2W J, not sure which resistor i need to replace? any expert can guide me?

Thanks

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anniel747 10 months ago +1 suggested

It' a common 2.2Ω 1/2W 5% fusible resistor.

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0 weiyann83 10 months ago

The original resistor appears as shown, and I have observed that it consistently burns R7914 and cracks IC7905. Additionally, I have replaced the 3x power boards over the past four years.

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0 phoenixcomm 9 months ago in reply to weiyann83

weiyann83 could be that as JWx suggested the MOSFET is stuck ON. One thing you could do (a little nuts) 2.2Ω 5W 5% fusible resistor. and mount it off the board maybe even bend a small aluminum into a U-shape and clamp it to the resistor. personly you could use a hose clamp BYW heat compound is used as well. You realize that this is OVERKILL ~~ Cris
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0 phoenixcomm 9 months ago in reply to weiyann83

weiyann83 could be that as JWx suggested the MOSFET is stuck ON. One thing you could do (a little nuts) 2.2Ω 5W 5% fusible resistor. and mount it off the board maybe even bend a small aluminum into a U-shape and clamp it to the resistor. personly you could use a hose clamp BYW heat compound is used as well. You realize that this is OVERKILL ~~ Cris
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