| Electronics > Repair |
| [FIXED] Venerable AIM TTI PL303QMD-P needs help - Overvoltage trip error |
| << < (4/11) > >> |
| Zucca:
Okay, the problem is in one the digital PIC board (originally master). Swapped the two and the error follows the PIC board, the other side was fixed. Two corrections from before: 1) the misaligned molex (on the master power board) does not play a role... it is correct in both position misaligned or not.. 2) the two power boards are identical but there is a hard jumper in the master (LK1)... so for basic tests you can swap them temporarily but them put them back in place. getting closer! |
| Zucca:
Sorry for the delay, I am selling some stuff (go to the buy/sell section to check it out) and my 2015 Ford F150 needed some immediate attention. Will resume this adventure soon, I am confident I will fix it. |
| Zucca:
uP board has some digital and analog stuff. As a quick check the analog parts looks good. Next I will check the DAC and ADC with a scope. Can't be the uP because the display "Output trip" is sent by the uP iself. |
| Gertjan:
Hi Zucca, good to hear that you are still at it! :-+ This very nice power supply needs to be in use on your bench, instead of sitting in your repair que :) |
| m k:
On the bench already. MCU can have separated on/off info pins for both channels. |
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