Ps42419ha Schematic - Top

The PSU shows no output because the green/purple standby lines are dead. This is frequently due to a failure in the TNY279PN IC and its associated 1-ohm starter resistor.

Technicians regularly document recurring component failures on the PS-4241-9HA ps42419ha schematic top

: The most common point of failure for "missing standby voltage." It is the primary controller for the standby rail. The PSU shows no output because the green/purple

If the standby light is on, but the fan doesn't spin and the PC won't start when the power button is pressed, the main switching stage has an issue. ps42419ha schematic top