ASTRO HDQ 1, Руководство по эксплуатации

Страница: 28 / 32

Troubleshooting
Operating Manual HDQ 1 - Version 09-2019A Page 28
Troubleshooting
If the device is not functioning correctly, please perform the
following checks:

Check whether the device has been connected to the specified
mains voltage.

Check whether the coaxial cables are connected correctly, and
that there are no breaks or short circuits in the connectors.

Check whether the output level on the device is within the
permissible limits for the operating level.
If the problem cannot be resolved, please contact the ASTRO
customer service.
Maintenance and repair
The following safety information must be observed when
performing maintenance and repair work. Failure to
observe this safety information may result in personal
injury due to electrical and thermal dangers!

The operating display only shows whether the DC current,
which supplies the device components, has been discon-
nected from the mains voltage. If the operating display (for the
power supply unit or the device) does not light up, this does not
mean that the device has been fully disconnected from the
mains voltage. There may still be voltages in the external
power supply unit that are dangerous to touch. Do not open the
case of the device or the external power supply unit.

Read carefully: EN 60728 - Part 1 Safety requirements: No
service work during thunderstorms.

A defective device may only be repaired by the manufacturer
to ensure that components with the original specification are
used (e.g. power cable, fuse). Improperly performed repairs
may result in considerable dangers for the user or installer. If
malfunctions occur, the device must therefore be disconnected
from the mains and authorised experts must be consulted. The
device may need to be sent to the manufacturer.