ZyXEL ONU-6040B-21 User Guide - Page 14

Check the coaxial cable. Make sure it is

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NOT attempt to replace the optical cable/ connector yourself. 3. The CATV light is off. • Check the PON light. If the PON light is off, see 2 The PON light is off. If the PON light is on, contact your service provider and make sure the video signals can be transmitted successfully. 4. The CATV light is on but no video is displayed. • Check the coaxial cable connection between the CATV port and your TV or set-top box. • Check that the TV is turned on. • Check the coaxial cable. Make sure it is not broken. Try using another coaxial cable if you're unsure. 5. I cannot connect to the Internet. • Check the port connections and the lights. • There might be problems with the optical network setting. Contact your service provider. 14

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14
NOT attempt to replace the optical cable/
connector yourself.
3.
The
CATV
light is off.
•
Check the PON light. If the PON light is off, see
2
The PON light is off.
If the PON light is on, contact
your service provider and make sure the video
signals can be transmitted successfully.
4.
The CATV light is on but no video is displayed.
•
Check the coaxial cable connection between the
CATV
port and your TV or set-top box.
•
Check that the TV is turned on.
•
Check the coaxial cable. Make sure it is not
broken. Try using another coaxial cable if you’re
unsure.
5.
I cannot connect to the Internet.
•
Check the port connections and the lights.
•
There might be problems with the optical network
setting. Contact your service provider.