Four months ago the charger got a problem with the electronics that controls the 12V fan, so I disassembled it and tried a couple of things without any luck. At the end I just shorted it out, so the fan always runs when the power is on Not optimal but it works.
Anyways, I found some jumpers. What are they for? See the red circle on the pictures. Are those volt/amp settings?
It is this model:
If any of you have any ideas on how to fix the FAN circuit, you are welcome. The problem is that the optocoupler does not receive the correct voltage. It is the four legged IC. So when i put a little voltage, or just touch the input of the optocoupler, the fan starts. But now I have just shorted the output because I couldn't find the error. The problem is probably corrosion, but on which component?
Anyways, I found some jumpers. What are they for? See the red circle on the pictures. Are those volt/amp settings?
It is this model:
If any of you have any ideas on how to fix the FAN circuit, you are welcome. The problem is that the optocoupler does not receive the correct voltage. It is the four legged IC. So when i put a little voltage, or just touch the input of the optocoupler, the fan starts. But now I have just shorted the output because I couldn't find the error. The problem is probably corrosion, but on which component?