Question about Samsung SyncMaster 740N 17" LCD Monitor
You have problem with the psu.Three capacitors 820mF/25V are dead and there is a fuse 3A worn out
Can you please put some more details that why it happened and whats PSU?
I found the Capacitors where is the fuse.and what shall I change to get it back.
Also can you tell me about dell lcd as I have 15'', 17'' models. I changed the cap in 17'' dell it worked for once then again one of the capacitor is blown and I can see the burnt cap c70...
will appriciate ur time n concern
There are two reasons why capacitor blow up is higher voltage than it can take or higher temperature than the mark on the capacitor.When I repair psu I always change ALL capacitors,primary and secondary section.Bad capacitor in primary section is usually reason for overvoltage in secondary.Fuse is in power line of 820mF.As I remember they are paralel connected so follow +line back to the diode.There is a small green component looks like resistor betwen diode and capacitors.
Same thing is with other two monitors princip is the same.
Posted on Jul 31, 2008
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