In a message dated 8/13/02 8:37:46 AM, [EMAIL PROTECTED] 
writes:

<<
... it blew the 3A fuse in the power cable! also the psu smells of burn a bit!

Popking aound I note the psu is rated at 1.5a not 3 (on 200-240v), I'd 
usually assume this means i should use a 1.5a fuse for protection but these 
are not common, all computer stuff uses 3a or 5a fuses.

Any idea what could case this and what i should do.
>>

Probably a failure in the primary side of the power supply, also known as the 
converter section.

The most frequent cause of this type is failure of the bridge rectifier (if 
self-contained) or one of the four diodes (if not self-contained).

This causes a short circuit, which blows the fuse in order to protect the 
power supply from additional failures.

As most individuals don't have the specialized equipment, knowledge or skills 
to perform component-level repairs on power supplies (these contain lethal 
voltages, BTW), it is probably best to buy a replacement power supply and to 
discard the failed one.



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