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(Topic ID: 198663)

TAF blowing Thermistor

By Sabot68

6 years ago



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termistor cir (resized).jpg
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#1 6 years ago
OP
 
AWR

Sabot68

Pinside member

AU Granville

10y 24,400 85 1

HI All,
I have a TAF that has blown 3 thermistors in about 12 to 18 month period. I'm assuming this is a high rate of failure. See attached pic of the latest victim.

The pin does not seem to have any other major issues, I don't have any issues with power (that I know of). The pin is plugged into a power board however its the only thing on the board.

I had bought spare thermistors and varistors after the last blowout, I have replaced the thermistor and the game is back up and running.

What could be causing this issue?

termistor cir (resized).jpgtermistor cir (resized).jpg

3 weeks later
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#2 6 years ago
 
AXE

YeOldPinPlayer

Inactive member

Unknown

8y 111K 6,454 4 12

Are you using the 275v MOV https://www.greatplainselectronics.com/proddetail.asp?prod=V275LA40BP
and what thermistor are you using?

Your electrical supply is 240v? or is it 120v like here in the US?

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