On Apr 7, 2004, at 10:53 pm, nhc_design2004 wrote:
I have a 7100/80 which for a while was reluctant to start up using the
keyboard 'on' button. Sometimes it would take several tries before the
machine would begin its start up routine. However, during the last attempt
to start it a 'pop' was heard followed by a slight burning smell. The
machine is now dead. Could it be that the power supply has failed or
something else that has fried?
If it was that pronounced then you will be able to tell if you examine the logic board. Any blowouts on there will show as obvious burns.
I suspect however it's a cap that ha blown in the PSU unit. It's not uncommon on old (as in aged rather than old design, although that is also a factor) switch mode PSUs for the high voltage line side to blow a cap or something.
-- Mark Benson
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