crwdns2934241:0crwdne2934241:0 tikku
crwdns2934249:0crwdne2934249:0:
for mine, I determined from other threads that the bundle cable coming out the back of the display was bad. in addition to the hissing noise, my display would go blank intermittently. a bit of work to open the display and replace the cable, but it worked... display is on consistently, no noise. HTH.
crwdns2915684:0crwdne2915684:0:
open