Rick,
if it's an A1534 12" macbook, these are well know for the CPU just dying, where there is no fix for this I'm afraid.
There is the additional issue that without being able to disconnect the battery on these until everything else is 'out' - You run the risk of causing issues when changing the screen as the board is still live. Quite a ridiculous design flaw.
You can check this by plugging in a USB mouse with a USB-C adater. If there is light from under the mouse there is CPU activity, if nothing, CPU is dead. This model also suffers SSD just dying too.