Hi Guys,
Hopefully someone can help me as I have swapped the psu caps , the switching IC, the soldering gun heating element, the M7 diodes on the psu and the display board. checked all caps and diodes for shorts and still I'm getting the U3 error with constant reboot. The unit stays on without the gun connected.
A strange symptom is that when turned off the unit flicks on the display and fan only for an instant every 10 seconds or so.
There is a ticking sound coming from the PSU when turned on with and without the gun attached. Can't remember if this is normal or not.
There are no scorch marks or any signs of failure on either side of the boards.
Any help much appreciated.
Hopefully someone can help me as I have swapped the psu caps , the switching IC, the soldering gun heating element, the M7 diodes on the psu and the display board. checked all caps and diodes for shorts and still I'm getting the U3 error with constant reboot. The unit stays on without the gun connected.
A strange symptom is that when turned off the unit flicks on the display and fan only for an instant every 10 seconds or so.
There is a ticking sound coming from the PSU when turned on with and without the gun attached. Can't remember if this is normal or not.
There are no scorch marks or any signs of failure on either side of the boards.
Any help much appreciated.
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