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Auto Fan Control on Universal Amplifier Control Board

 
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Auto Fan Control on Universal Amplifier Control Board
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stylzmovement
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Joined: 11 Oct 2003
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Post Auto Fan Control on Universal Amplifier Control Board Reply with quote
i have a problem with a Universal Amplifier Control Board auto Fan output control, here is the issue :i set the temperature alarm at 60C and the auto fan trigger at 30C , but the fan never turn on, i repeated the procedure again set the alarm at 60C , then set the fan to always on , the fan did not activate , i tried several times at different temperature it never work . what is the issued here?

when connected to the regular fan output the fans worked fine.
Wed Feb 06, 2008 8:57 am View user's profile Send private message
pcs
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Joined: 18 Jan 2002
Posts: 3063
Location: Radio Land

Post Reply with quote
Its possible the fet that turns the fan on/off died. Its the cheap and generally available
type, BS170 or 2N7000, do you have any of these two at hand?

Marko

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Marko - PCS Electronics
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Wed Feb 06, 2008 11:50 am View user's profile Send private message Visit poster's website
stylzmovement
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Post Reply with quote
i can get them..
thanks alot.
Wed Feb 06, 2008 6:15 pm View user's profile Send private message
pcs
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Maybe you made a short across the fan pins?

_________________
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Wed Feb 06, 2008 6:23 pm View user's profile Send private message Visit poster's website
stylzmovement
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Post Reply with quote
nope. it just stop working before i got there.
Tue Feb 12, 2008 11:01 am View user's profile Send private message
pcs
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That's not good than. We'll place a stronger fet there.

So you were able to fix it I suppose?

Marko

_________________
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Tue Feb 12, 2008 11:20 am View user's profile Send private message Visit poster's website
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