I guess bad corrosion is common on these GBAs? This is my second bad board out of 4. The last one had a bad CPU. I'd like to save this one if I can.
Did the typical and cleaned up as much corrosion as I could, checked the fuse, and repaired the faulty power switch.
I am getting 3V out of the switch.
I have a working board I am using as reference, can anyone help explain why I am getting these discrepancies:
Transistor 5
Left leg = 3V - normal
Upper right leg = 0V - normal
Lower right leg = 0V - abnormal (should be 0.5V)
Transistor above C43
Left left = 3V - abnormal (should be 6V)
I've replaced Q5 with a spare and it still gave the same results. I seem to lose all power after that transistor but I haven't thoroughly checked everything. Be nice to get some expert advice since I'm new at this.
Did the typical and cleaned up as much corrosion as I could, checked the fuse, and repaired the faulty power switch.
I am getting 3V out of the switch.
I have a working board I am using as reference, can anyone help explain why I am getting these discrepancies:
Transistor 5
Left leg = 3V - normal
Upper right leg = 0V - normal
Lower right leg = 0V - abnormal (should be 0.5V)
Transistor above C43
Left left = 3V - abnormal (should be 6V)
I've replaced Q5 with a spare and it still gave the same results. I seem to lose all power after that transistor but I haven't thoroughly checked everything. Be nice to get some expert advice since I'm new at this.
Last edited by Soulboogie,