Re: Hanns g 28" Monitor Power Supply Question
Tentative diagnosis is two seconds to black. The inverter controller detects a fault condition and shuts down. To confirm, hook the monitor to a working computer and see if you can observe the desktop by shining a flashlight on the monitor screen. If you can, that confirms it.
#1 cause is bad caps, either in the 24V section of the power supply or the inverter. Test by replacing all caps in the 24V section of the power supply and the inverter with low ESR caps (if you haven't already done so).
#2 cause is one or more bad CCFLS, or the wiring to the CCFLS. Test by substituting a pair of good CCFLS for each pair in this monitor. (The test CCFLs do not have to be installed in the panel.)
#3 cause is one or more bad transformers. Test by measuring the secondary resistance of each transformer.
PlainBill
Originally posted by Steven_C
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#1 cause is bad caps, either in the 24V section of the power supply or the inverter. Test by replacing all caps in the 24V section of the power supply and the inverter with low ESR caps (if you haven't already done so).
#2 cause is one or more bad CCFLS, or the wiring to the CCFLS. Test by substituting a pair of good CCFLS for each pair in this monitor. (The test CCFLs do not have to be installed in the panel.)
#3 cause is one or more bad transformers. Test by measuring the secondary resistance of each transformer.
PlainBill
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