Panasonic SAHT56 Home Theater - Page 22

Troubleshooting guide/Maintenance Troubleshooting guide Before requesting service, make the following checks. If you are in doubt about any of the check points, or if the remedies indicated in the chart do not solve the problem, refer to "Customer Services Directory" on page 23. ■ Common problems No power. No sound. Display is dim. "OVERLOAD", "F70", or "F76" appears on the display. "FAN LOCK" appears on the display. ■ Sound Sound is not heard from the center, surround, or subwoofer speakers. A ticking noise interrupts the sound. Cannot use Dolby Pro Logic II or SFC. ■ Radio The radio cannot be tuned in or there is a lot of noise and interference. There is a lot of noise when listening to AM. ■ HDMI When using an HDMI connection, the first few seconds of sound is cut off. "U 70-1-1" appears on the display. "U 70-1-2" appears on the display. "U 70-3" appears on the display. The unit does not work properly. VIERA Link "HDAVI ControlTM" does not function properly. ■ Remote control The remote control does not work. Other products respond to the remote control. • Ensure the AC power supply cord is connected. • Turn the volume up. • Check connections to speakers and other equipment. • Select the correct source. • Check that the digital signals can be decoded by this unit. • Turn PCMFIX and DTS FIX off. • An electrostatic discharge (ESD) may interrupt sound. Turn the unit off and on again. • Check the DIMMER level. • An electrostatic discharge (ESD) may cause the display to dim. Turn the unit off and on again. • Turn the unit off, disconnect the AC power supply cord, and consult your dealer. • Remove the object obstructing the cooling fan. • The source may be stereo. Use Dolby Pro Logic II or SFC. • The speaker wires are touching each other. Check all your speaker connections. • You cannot use Dolby Pro Logic II or SFC when input is PCM with sampling frequencies of 96 kHz or 88.2 kHz. • Connect the appropriate antenna. (You may need an outdoor antenna or one with more elements.) • Adjust the position of the FM or AM antenna. • Reduce the treble. • Turn off nearby televisions, video decks and DVD players. • Separate the antenna from other cables, leads, and appliances. • Try changing the sound mode or turning the modes off. • Try changing the BEAT PROOF mode. • Should you be playing a chapter on a DVD: - Change the audio output setting on the DVD player or DVD recorder from "Bitstream" to "PCM". (6.1-channel sources will however be played as 5.1-channel.) - Select "PCMFIX" as instructed in "INPUT MODE" when you play 2-channel sources. • The equipment connected by the HDMI cable is not compatible with the unit's copyright protection technology. • The unit has received a signal for a picture format that is incompatible with the HDMI connection. Check the settings of the connected equipment. • Should anything unusual happen using an HDMI connection: Consult your dealer if the sign remains on the display after these steps. - Turn the connected equipment off and on again. - Pull out the HDMI cable then reinsert it. - Reduce the amount of equipment connected in series to the HDMI terminal if exceeding 2 units. • The unit does not work properly when wrong cords are in HDMI input and output terminals. Turn the unit off, unplug the AC power supply cord, and make connections again. • Connect the unit to your TV (VIERA) using the HDMI cable, switch the TV on, unplug the unit's AC power supply cord, and insert it into a household AC outlet again. • Replace the batteries if they are worn. • Change this unit's remote control code to "REMOTE 2". Page 10 15 6-10 15 9 13 - 19 - - - 15 6 15 10 10 16, 18 - - 15 16, 17 - 13 - - - 8 - 8 - 4 21 RQTX0175 Maintenance If the surfaces are dirty To clean this unit, wipe with a soft, dry cloth. • Never use alcohol, paint thinner or benzine to clean this unit. • Before using chemically treated cloth, read the instructions that came with the cloth carefully. 22