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  1. Replies
    27
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    59,599

    Equpment

    he who has the most toys and buttons WINS!
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    63
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    174,207

    Fan worn

    No it does not need 120 to start, and it would make no difference. If the fan did not start and then slow down, the amp will just warm up faster, and then the thermal switch will put the full 120 so...
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    63
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    174,207

    6290 fan

    Yes it is always on, when the amp is on. It just runs at low speed thru the current limiting resistor as shown in the schematic. Then the thermal switch when exceeded shorts the resistor giving full...
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    63
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    174,207

    Fan controller

    It would seem to be the same design as that of Desktop Computer Power Supplies. However those use 12 volt fans with hall effect speed sensors to control the fan speed based on temperature.

    I think...
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    63
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    174,207

    6260 went from bad to worse

    I am working on a defective 6260 (non fan type).
    Here is the scoop, I probed around the drivers and outputs to discover CHA was glitching and relay dropping out at random due to DC fluctuation on...
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