In article ,
says...
paul wrote:
Does anyone have a schematic and/or advice for repairing this phone.
It was hit by lightning. The PSU is dead (That is the easy part). An
opto isolator(I think) has disintegrated. And a transistor too.

My advice: throw it away and buy a new one for $20 USD. You'll get a
new battery as part of the deal.



Common sense says that too. But I hate to throw stuff away. And half of
it still works.