Hello CCTV People,   Hopefully this one has been solved before... my Sentinel CCTV model SC21FD3044 DVR has developed a disk drive power issue.  The +12V supply has risen to +19 and the +5 supply has dropped to 1.9V.   So now it is eating drives... 
  
The people at Sentinel/Lorex are not too helpful since my unit is no longer under warranty.    They want me to send the 70+ pound DVR/monitor asross the country for repair.  
  
This is a very common failure that kills these units after a couple years of use.   Can anyone point me toward the offending component(s) so I can get my power back into spec? 
  
Thanks so much!   Mike