This board had several componentes burnt like: F7005, R7010 that I didnot replace at this moment I just remove it. U7000 and U7001 and SMC replaced.
After that now I have ppbus stable at 12.59V and 3V42 stable and all rails appear and cpu core too for 0.1 seg but not pulsing later.
Customer told that happend after connecting the ac adapter some way.
After that now I have ppbus stable at 12.59V and 3V42 stable and all rails appear and cpu core too for 0.1 seg but not pulsing later.
Customer told that happend after connecting the ac adapter some way.