Check the Schottky diodes for the 12V output to ensure they haven't failed shorted.
Based on the Yoreparo findings, the key to troubleshooting this issue lies in the PS25A controller:
: The PS-4241-9HA's +5V_SB (Pin 1) should always be present when AC power is connected. If this voltage is missing, the standby circuit is faulty, and the PSU will not turn on. ps42419ha schematic work
To effectively troubleshoot using the PS42419HA schematic, you must follow the sequential workflow of the power supply during a cold start. The Standby Stage AC voltage enters through the fuse and EMI filter network.
Disclaimer: Repairing power supplies involves high voltage and should only be undertaken by qualified individuals. If you'd like, I can: Provide for this board. Show you where to find the full PDF schematic . Explain how to test the MOSFETs with a multimeter. Let me know how you'd like to continue with your repair . HP Inc Ps42419ha 9244 | PDF | Power Supply - Scribd Check the Schottky diodes for the 12V output
By following this article, engineers and designers can gain a deeper understanding of the PS42419HA schematic work and its applications, enabling them to create innovative and efficient power management solutions.
The HP PS-4241-9HA is designed for robust performance with the following specs: 100-240V Total Output Power: 240 Watts Input Current: 4 Amps Typical Efficiency: > 88% Conclusion If you'd like, I can: Provide for this board
Leo’s client, a small automotive plant, couldn’t afford a new $40,000 servo drive. They needed this board fixed.