600E connected to reverse polarity DC.

[lyonesse]

Now runs OK but wont charge the battery or run from mains adapter.
I have the motherboard out.
Can anybody point me to the likely blown component please or even a circuit diagram ....

[Guest]

Read the hardware maintenance manual, all the information you need should be in there.

600, 600E:
http://www-307.ibm.com/pc/support/site. ... WIK-3SYPX2

600X:
http://www-307.ibm.com/pc/support/site. ... IGR-4DGNTQ

[lyonesse]

Already read that thanks. It deals with screw positions and board removal etc. Done that and have the board in hand. Somewhere I've seen reference to a transiistor which blows but cant find that reference any more.