Why HDTV cable boxes with low noise and hum feel hot to the touch, even when turned off, whereas when a cable is off the analogue TV is silent and cold to the touch? Once the cable box was blowing so hard, even if it was turned off, unplugged it, then just stop ringing. My HDTV decoder is a trademark and Motorola is provided by Verizon in the Washington area. No silence cold boxes HDTV cable contact available? Thank you.
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#1 by Mr. Peachy® on March 29, 2010 - 11:28 pm
Depending on what type of power supply the box has or if it has a fan, it can emit a low pitched buzz or a high pitched squeal. In either case the box should be exchanged for one that works quietly.
As far as heat goes, I’ve seen plenty of analog boxes that get pretty warm. HD has a lot more circuitry and will produce more heat as a result. They really need a fan, but fans can be noisy. This is just the nature of the beast.
#2 by abaer01 on March 30, 2010 - 12:12 am
Yeah, that’s the problem with today’s electronics. Even if we turn them off they sit there, all day, actully “on” just waiting to hear “wake up” from the remote.
#3 by oneliteranight on March 30, 2010 - 1:01 am
If the box is hot the noise may be the fan trying to cool the box…
There should be atleast 3 inches of clearance around the box for proper ventalation…
The fan is designed to cool the box even when it is turned off.
If you have a HD DVR it may be the hard drive spinning that is making the noise…
the box may need to be re-setted… Call verizon tech support..
after acouple of trouble shooting things they will come out and swap the box….
Anywho hope this helps…