MONITOR REPAIR LESSON
Troubleshooting a dead monitor
Checking the primary side
If the monitor is dead the first thing to do is to verify if there is voltage on the drain of the switching FET of the main power supply
In case there is not voltage, you have to seeking for some open thing like blown fuse, resistors or broken traces.
The normal voltage on its drain is about 150V when the monitor is plugged to a 120V AC outlet (USA users) or 300V when the monitor is hooked to a 220V AC outlet (UK users)
Troubleshooting a dead monitor
Checking the primary side
If the monitor is dead the first thing to do is to verify if there is voltage on the drain of the switching FET of the main power supply
In case there is not voltage, you have to seeking for some open thing like blown fuse, resistors or broken traces.
The normal voltage on its drain is about 150V when the monitor is plugged to a 120V AC outlet (USA users) or 300V when the monitor is hooked to a 220V AC outlet (UK users)
