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techknight

Notice to Powerbook Duo Users!

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On 2/29/2012 at 12:46 PM, techknight said:

Ticking sound was from the DC-DC circuit. if it quit ticking and is dead, thats BAAAD news :-(

After a recap my 270c is ticking from the dc-dc circuit.. any ideas what I may have done. Was dead before- heaving leaking but no damaged tracks 

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DC-DC converters tick if there is no load, tripping it into overvoltage protection, or a short causing it to trip into overcurrent protection. Youll need to go chasing to find out where it is, and what condition it is in. Easiest way is to start resistence checks on the output side of the converters. 

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