Panasonic SC-HTB485 Troubleshooting Manual

Troubleshooting

Before requesting service, make the following checks. If you are in doubt about some of the check points, or if the solutions indicated in the following guide do not solve the problem, consult your dealer for instructions.

To return to the factory preset.
While the main unit is on, press and hold [] on the main unit for more than 4 sec. ("RESET" is indicated on the display when this system is reset.)
If this system does not operate as expected, returning the settings to the factory preset may solve the problem.

• The remote control code will return to "REMOTE 1" when this system is returned to the factory preset. To change the remote control code.

General operation

No power.

• Unplug the AC mains lead for 10 sec before plug in again.
• After turning the main unit on, if the main unit immediately turns off, unplug the AC mains lead and consult your dealer.
• If the main unit does not turn on by turning on TV (HDAVI control), turn on the main unit manually. If the problem persists, refer to "HDMI" in "Troubleshooting".

The remote control does not work properly.

• The battery is depleted. Replace it with a new one.
• It is possible that the insulation sheet has not been removed. Remove the insulation sheet.
• It may be necessary to set the code of the remote control again after changing the battery of the remote control.
• Use the remote control within the correct operation range.
• Check which remote control signal sensor is working by the following operation.
• Press and hold [INPUT] on the main unit for more than 4 sec. "ON TABLE" or "ON WALL" is indicated on the display for 4 sec.

The main unit is automatically switched to standby mode.
AUTO POWER DOWN" function is on.
The main unit will automatically switch to standby mode when no signal is input and no operation is performed for approx. 20 minutes.

The main unit is turned off when the TV's speakers are selected in the speaker control.
This is a normal feature when using VIERA Link (HDAVI Control 4 or later). Please read the operating instructions for the TV for details about its power save feature.

HDMI

This system does not operate correctly.
If the HDMI cable is connected to the wrong terminal (HDMI AV IN or HDMI AV OUT), this system will not operate correctly. Turn the main unit off, disconnect the AC mains lead and reconnect the HDMI cable(s).

VIERA Link related operations no longer function properly.

• Check the VIERA Link setting on the connected devices.
  • Turn on VIERA Link function on the connected devices.
  • Select this system as the speaker in the TV's VIERA Link menu.
• Have you turned the VIERA Link settings off?
• When the HDMI connections are changed, after a power failure or after the AC mains lead has been removed, VIERA Link operations may not function properly.
  • Turn on all the devices that are connected to the TV with an HDMI cable and then turn the TV on.
  • Turn off the VIERA Link settings of the TV and turn it on again. For details refer to the operating instructions for the TV.
  • While the main unit and the TV are connected with the HDMI cable, turn on the TV and then remove the main unit's AC mains lead and reconnect it again.

The first few seconds of audio cannot be heard when using the HDMI connection.
This may occur during DVD-Video chapter playback. Change the digital audio output setting on the connected device from "Bitstream" to "PCM".

When operating an HDMI compatible device of a different brand, the main unit reacts in an unwanted manner.
HDAVI Control commands may use a different signal depending on the brand of the device. In this case, turn VIERA Link off.

When the main unit is turned on or off, audio and video are temporarily disabled
When the main unit is turned on or off it is normal for the audio and video to be temporarily disabled. This is not a malfunction. This can occur when the device it is connected to, via HDMI, does not support Panasonic's VIERA Link feature (HDAVI Control 3 or later).

Bluetooth ®

Pairing cannot be done.
Check the Bluetooth^® device condition.

The device cannot be connected.

• The pairing of the device was unsuccessful or the registration has been replaced. Try pairing the device again.
• This system might be connected to a different device. Disconnect the other device and try pairing the device again.

The device is connected but audio cannot be heard through this system.

For some built-in Bluetooth^® devices, you have to set the audio output to "SC-HTB485" manually. Read the operating instructions for the device for details.

The sound is interrupted.

• The device is out of the 10 m communication range. Bring the Bluetooth^® device closer to the main unit.
• Remove any obstacle between the main unit and the device.
• Other devices that use the 2.4 GHz frequency band (wireless router, microwaves, cordless phones, etc.) are interfering. Bring the Bluetooth^® device closer to the main unit and distance it from the other devices.
• Select "MODE1" for stable communication.

The One-Touch Connection (NFC feature) is not working.
Make sure the main unit and the NFC feature of the device are turned on.

Sound

No sound (or image).

• Turn muting off.
• Check the connections to the other devices.
• Make sure that the received audio signal is compatible with this system.
• Turn this system off and then on again.
• If the main unit is connected to the TV with only an HDMI cable, make sure that the TV's HDMI terminal is labelled "HDMI (ARC)". If not, connect using the optical digital audio cable.
• If the main unit is connected to a Panasonic TV and turned on using the button on the main unit or the remote control, sound might not be output from this system. In this case, turn the main unit on using the TV's remote control.
• If the connections are correct, there might be a problem with the cables. Redo the connections with different cables.
• Check the audio output settings on the connected device.

The dual audio cannot be changed from main to secondary.
If the audio received from the connected device is not "Dolby Dual Mono" or the output setting is not "Bitstream", the setting cannot be changed from this system. Change the setting on the connected device.

The volume is lowered when the main unit is turned on.
"VOL LIMITATION" is on.
If the main unit is turned off with the volume setting in the greater half (above 50), the main unit will automatically lower the volume to the middle (50) when the main unit is turned on.

The dialog is too persistent or the dialog does not sound natural.
This system has a function to make the dialog stand out when the volume is low.

There is no audio.
The power of the main unit turns off automatically.
(When the main unit detects a problem, a safety measure is activated and the main unit automatically switches to standby mode.)

• There is a problem with the amplifier.
• Is the volume extremely high?
  If so, lower the volume.
• Is this system placed in an extremely hot place?
  If so, move this system to a cooler place and wait a few moments and then try to turn it on again.

If the problem persists, confirm the display, turn this system off, remove the AC mains lead cord and consult your dealer. Please be sure to remember the display that was indicated and inform the dealer.

Main unit displays

"F61"

• There is a problem with the amplifier of the system.
• Disconnect the AC mains lead and consult the dealer.

"F70 HDMI" / "U701" / "U703"

• Check HDMI connection.
• Turn off the main unit and then switch it on again.
• Disconnect the HDMI cable.

"F76"

• There is a problem with the power supply.
• Disconnect the AC mains lead and consult the dealer.

"U704"

• This system is receiving unsupported video format signal from the input source.
  • Change the video resolution setting on the connected device. (Refer to the operating instructions for the device.)
  • If there is no image, connect the device directly to the TV to change the settings.

Active Subwoofer

No power.
Ensure the AC mains lead of the active subwoofer is connected properly.

After turning the subwoofer on, it immediately turns off.
Unplug the AC mains lead and consult your dealer.

No sound from the subwoofer.

• Check that the active subwoofer is turned on.
• Check that the WIRELESS LINK indicator lights green.

The WIRELESS LINK indicator lights red.

• There is no link between the main unit and the active subwoofer.
  • Check that the main unit is turned on.
  • Turn the active subwoofer off and then back on. Alternatively, turn the active subwoofer off, disconnect the AC mains lead and then reconnect it.
• The active subwoofer and the main unit may not be paired correctly. Try the following operation. (Wireless pairing)
  1. Turn on the main unit and active subwoofer.
  2. Press and hold [ID SET] on the rear of the active subwoofer for more than 3 sec. (The WIRELESS LINK indicator will blink in red.)
  3. While pressing and holding [INPUT] on remote control, press and hold [VOL +] on the main unit for more than 4 sec. ("SUBWOOFER PAIRING" will be indicated on the display.)
     • When the wireless pairing is successful, "PAIRED" will be indicated on the display for 2 sec and WIRELESS LINK indicator lights green.
  4. Turn the main unit off and on.
• Consult your dealer if the problem persists.

Documents / Resources

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download Panasonic SC-HTB485 Troubleshooting Manual