New member although been visiting for a while. Recently purchased an older TZ with acid damaged CPU board from past battery leakage. Decided to replace the battery holder with new and clean the damage with vinegar, water and then IPA (91%). Allowed overnight and the morning sunlight drying before reinstall.
Now, no booting evident on DMD and get a “humming” that I didn’t notice before. One red LED is lit in the upper left side of the board and the two others are dark.
Thoughts? Recommendations/checks? Time for a new board?
Thanks all. Really appreciate any help. Was sure I had this but “pride precedeth the fall”.