- ページ 16

アンプ ASTRO HVB 31のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。ASTRO HVB 31 20 ページ。 Broadband amplifires

page 16

If the device is not functioning correctly, perform the following

checks:



Check whether the device is connected to the required mains

voltage (230 V~, 50 Hz).



Check whether the coaxial cables are connected correctly and

make sure there are no breaks or short circuits in the connec-

tors.



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 ASTRO customer

service.

ATTENTION

infor-mation be observed when performing maintenance

and repair work. Failure to observe this safety information

may result in physical injury due to electrical and thermal

dangers!



The power indicator only shows whether the DC current, which

supplies the device components, has been disconnected from

the mains voltage. If the power indicator (for the power supply

unit or the device) does not light up, it does not mean that the

device has been fully disconnected from the mains voltage.

There may still be voltage in the device that is dangerous to

touch. Therefore, do not open the device.



Read carefully: EN 60728 – Part 1 Safety requirements: No

service work during thunderstorms.



Disconnect the mains plug before cleaning the device!



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.

Operating manual HVB 21, HVB 31 a. HVB 32 -

It is essential that the following safety

Troubleshooting

Version 01-2021A