Fusible Resistors


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Fusible Resistors

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Mules001
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Jun 19, 2007, 6:59 AM

Post #1 of 4 (780 views)
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Fusible Resistors	Can't Post

What happens if someone replaces a normal resistor of 47 Ohms value instead of a fusible resistor of the same value?

How can one determine its wattage?

rrobor
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Jun 19, 2007, 7:08 AM

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Re: [Mules001] Fusible Resistors [In reply to]	Can't Post

When you buy resistors they are wattage rated. Most normal resistors are carbon. No fusable resistor is carbon, it is a metal film on a ceramic rod which makes it flameproof. If you replace a protection resistor with a standard resistor you then take all responsibility for the damage that may cause, whether that be fire or electrocution. Think very carefully whether you want that liability for a minor extra cost.

Mules001
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Jun 19, 2007, 7:17 AM

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Re: [rrobor] Fusible Resistors [In reply to]	Can't Post

Thanks, and by the way this fusible resistor (R196) is on a Formenti-Phoenix F16. Without it causes the screen to reduce from both sides(left and right) with a slight bend inwards. Something caused it to overheat and blow.
Regards
Mules001

techchris
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Jun 19, 2007, 6:09 PM

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Re: [Mules001] Fusible Resistors [In reply to]	Can't Post

these TV's suffered from bad solder joints on the flyback tuning capacitors which you should check SOON before the whole thing goes up in smoke(which I have seen many times on this Italian chassis)and burns a hole in the pcb.the arcing on these dry joints probably caused the fusible to flip open circuit

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