Anan 8000 DLE Fans

erict35
Posts: 6
Joined: Tue Apr 18, 2017 2:05 pm

Anan 8000 DLE Fans

Postby erict35 » Wed Dec 13, 2017 2:11 pm

Hi,

In my 8000DLE schematic, I’ve found 2 cooling fan systems :
The first one (sheet labeled “500W Palet”) is driven by a TC652 directly plugged to a fan (via a N-Mosfet transistor) and close to the P.A. heatsink.
The second one seems to use an op. amp (LM358) that sends a proportional voltage to the ATmega board (ADC2 input), depending on the temperature sensor (as far as I can judge R38,probably a NTC or PTC resistor). The fan is the driven by a PWM stobe sent by the PD5 ouput of the ATmega, buffered by a N-Mosfet.
Which one is in use in the rig ? (or are they both operational, one of them just waiting for a second fan ?)

Thanks
Eric - F1FLY
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W2PA
Posts: 60
Joined: Sun Apr 09, 2017 6:34 pm

Re: Anan 8000 DLE Fans

Postby W2PA » Wed Dec 13, 2017 7:59 pm

There is a schematic available? I had no idea. Where can I get one?
73,
Chris, W2PA

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