Motorola QIP27xx - Manual (Page 32)

26
Problem Possible Solution
There is no video
on the TV screen Verify that the TV is powered on and set to the
appropriate input source for the set-top.
Verify that the set-top is powered on and tuned to an
authorized digital TV channel.
Verify that all video cables between the set-top and
the TV are firmly connected.
Verify that the coaxial cable feed is firmly connected to
the set-top and the wall jack.
If the set-top video output is connected to a home theater
receiver, verify that the home theater receiver is powered
on and set to the appropriate input source.
The set-top is
making a humming
noise. The set-top includes an integrated hard drive and a fan
for cooling. During normal operation, the set-top emits a
low humming noise, similar to a personal computer. The
noise varies in volume occasionally when the speed of
the internal fan adjusts to changes in the temperature
around the set-top. Please note the hard drive will stay
on even when the set-top is turned off.