I have a 3750 manufactured in Feb of 2009, model number ws-3750-48ps-s V07. I'm consoled into it and when I power the switch, it boots (fans RPM) but no console display at all. The POE, stack, and speed lights are all froze green, and the duplex and stat lights are froze orange. I've been reading about these switched failing POST often, which I'm assuming is whats happening. Is there any internal fixes for this? I do not know any previous information as far as config goes or its previous life.
Are you sure you are consoled in properly?
Cisco will replace the switch provided you are the original purchaser under the Limited lifetime warranty. However, the terms of the LLW state for only 5 years from the end of manufacture date which unfortunately has passed.
Duration of Hardware Warranty: As long as the original End User continues to own or use the Product. In the event of discontinuance of product manufacture, Cisco warranty support is limited to five (5) years from the announcement of discontinuance.
This model of ws-3750-48ps-s isn't covered by Cisco anymore.
You could replace it with the still supported 3750x switches as this series is compatible with the old 3750-48 switch stack.