Heineken
12-05-2024, 03:23 PM
The cluster from a previous post (http://www.nsxcb.co.uk/showthread.php?16232-Cluster-Service-and-Repair-Brake-System-Warning-permanently-on) came in a box with an additional, non-working CCU. It had been worked-on previously and some unknown clear coat was applied, covering a lot of capacitor liquid damage:
14931
After removal of all capacitors the PCB was given a good scrub of the affected areas, down to bare copper, discovering multiple broken traces:
14933
For the first time so far, the back side needed work, too
14934
Nine bridges/repair wires had to be installed overall.
14935
The first test run in the vehicle showed all functions and buttons to be operational but no display.
Replacement of the display with a known working one showed no improvement so the issue had to be with the CCU board.
After looking a bit harder, one remaining broken trace near C44 (documented in the blog (http://www.nsxcb.co.uk/entry.php?2751-Climate-Control-Unit-(CCU)-Repair)) was the culprit.
14936
14931
After removal of all capacitors the PCB was given a good scrub of the affected areas, down to bare copper, discovering multiple broken traces:
14933
For the first time so far, the back side needed work, too
14934
Nine bridges/repair wires had to be installed overall.
14935
The first test run in the vehicle showed all functions and buttons to be operational but no display.
Replacement of the display with a known working one showed no improvement so the issue had to be with the CCU board.
After looking a bit harder, one remaining broken trace near C44 (documented in the blog (http://www.nsxcb.co.uk/entry.php?2751-Climate-Control-Unit-(CCU)-Repair)) was the culprit.
14936