d. The Power Supply Unit (PSU)
Analysis
Check if the aluminium radiator (on the rear housing) is “hot”; or the aluminium radiator
inside the cavity is “cold”. If yes, the PSU is normal. If no, check the output of PSU itself
by the electronic multi-meter (around 12V should be measured on the output terminal).
When there is no output measured, the PSU is down.
Remedy
Check if the fuse is not burnt. If yes, change the fuse carefully. If the fuse is normal,
because of the reason of safety and the “cast and effectiveness”, suggest to change a
new PSU according to the point 3.A.b.
END
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