For example: Full brightness: short circuit or extremely heavy load - a major fault probably is still present.
Again, always double check with a reliable voltmeter or by shorting with an insulated screwdriver!
Their secondary high voltage windings were connected together to couple the two transformers together.
This is usually set to trip around 6.5 volts, and its trip point would need to be modified as well.Check the startup resistors with an ohmmeter - power resistors in the AC line input section.If you work on many of the same type smps: Determine the normal load and make a dummy load.Next measure voltage on gray wire.If the display shows a message like "No video signal detected that's the monitor telling you the video port isn't communicating, so you should follow the "No" path for this decision.This is done to eliminate the need for troublesome opto-coupler feedback.You should not do a troubleshooting unless you have a proper electronics training and know how to work with high voltage circuits.If the voltage is much lower (analog meter) or jumping around (digital meter the large filter capacitors (e.g., 470 uF, 200 V) are also suspected.All this may result in a catastrophic failure of one or more transistors or rectifiers.Warning: probe these circuits with care both because of the safety issues but also since any slip of the probe may lead to a runaway condition and catastrophic failure of the switchmode transistor and its related parts as well as damage to any attached equipment.I always go with the motherboard topaz adjust photoshop cs6 mac labeling in those cases.Use dummy loads in place of the valuable equipment if possible when doing such testing!In but minutes with.5 digit multimeter, we can identify the problem AND then replace the suspect.What about smpss in TVs and monitors?All transformer outputs are related in voltage by the transformer turns ratio.However, in practice all 12V rails often have a single current limit.The default is usually for the scsi adapter to spin them up following their scsi ID sequence.Just don't depend on these to provide protection under all circumstances.It doesn't need to be large - a 2 A Variac mounted with a switch, outlet and fuse will suffice for most tasks.(Of course, if you recall those, you also recall the fond days of vacuum tube sets and the corner drugstore with a public tube tester!).Other possibilities for periodic or pulsing outputs: One of the diodes is failing at volage - quite possible.
Tick-tick-tick - Too little or no load.