1537 - Only work in Wireless Mode

[renan.horste]

Hello guys, i have a 1537 controller, and he only work in wireless mode, im already test the button board in another MCU board and works fine, so the problem is in MCU board, but WHERE? i have 5v on TP5

[RDC]

Measure J5 pin 8 to Ground, should measure 4.5k. If not then check R7 (1.5k) and R8 (3k) for anything missing or a damaged trace.

Measure J5 pin 8 to U1 pin 78, should measure 1.5k. If not look for damaged trace.

Measure J5 pin 10 to U1 pin 10, should measure 0 ohms. If not look for damaged trace.

Measure J5 pin 12 to U1 pin 11, should measure 0 ohms. If not look for damaged trace.


If all of the above checks good, then suspect U1 has an issue.

[renan.horste]

thanks mate, my MCU board is Cracked kkkk nothing to do, a lot of traces just jump of.