Roth AV Sub Zero II : TV Soundbar with Bluetooth APT-X - Manual (Page 13)

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Trouble Shooting
If your encounter problems when using the Sub Zero II Soundbar, check the following points before requesting
service.
In order to keep the warranty valid, please DO NOT try to repair the system yourself.
NOTE: DUE TO EEC REgUlATiONS ThiS PRODUCT will SwiTCh TO STANDBY mODE AS FOllOwS
The Subzero II switches to standby mode in the following situation:
• The device is idle for 30mins when powered by AC supply;
• The L/R Audio in or 3.5mm jack is disconnected or when there is no input signal or the input signal is too low.
If using the 3.5mm jack or L/R audio input to Subzero II, we recommend to default the output volume at 50%
or above on the external devices to ensure that it does not automatically go into standby mode.
1. No power
1-1. Make sure power cords are securely connected to the AC output.
1-2. Make sure that there is power at the AC output.
1-3. Press the power button on the remote control or the front of the Sub Zero II.
2. No sound
2-1. Press the Volume + (Up) button on the remote control or the front of the Sub Zero II.
2-2. Make sure that you selected correct input (Input 1, Input 2, or Input 3).
2-3. Press MUTE on the remote to make sure the Sub Zero II is not muted.
2-4. Make sure audio cables are securely connected at the terminals of the Sub Zero II and the external devices.
3. Buzzing or humming noise
3-1. Make sure audio cables are securely connected at the terminals of the Sub Zero II and the external devices.
3-2. Test on an alternate device or replace the audio cable.
3-3. Test the device and cable on an alternate input on the Sub Zero II.
4. The remote control does not work
4-1. Aim the remote control directly at the sensor on the front of the Sub Zero II.
4-2. Reduce the distance between the remote control and the Sub Zero II.
4-3. Make sure that the battery is inserted with its polarities (+/– signs) aligned as indicated.
4-4. Replace the battery.
5. The buttons on both the remote control and front panel do not work
5-1. Unplug the power cord from the AC output, and plug back in after a few seconds.
Roth Sub Zero II Manual UK EM.indd 13 11/10/2013 10:12