Panasonic SCHT17 SAHT15 User Guide - Page 28

Troubleshooting guide Before requesting service, make the below checks. If you are in doubt about some of the check points, or if the remedies indicated in the chart do not solve the problem, refer to the "Customer Services Directory" on page 27 if you reside in the U.S.A, or refer to the "Product information" on page 26 if you reside in Canada. No power. No sound. "F76" appears on the display, and the unit turns off. "FAN LOCK" appears on the display. "F 70" appears on the display. Sound is not heard from the center, surround, or subwoofer speakers. Cannot use Dolby Pro LogicII or SFC. 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. Common problems Pages • Ensure the AC power supply cord and system cable are connected. 9 • Turn the volume up. • Check connections to speakers and other equipment. • Select the correct source. • Change the D-INPUT setting to suit the type of connection you have made. • Check that the digital signals can be decoded by this unit. • Turn PCM FIX or DTS FIX off. 15 7-12 15 13 9 20 • Determine and correct the cause, then switch the unit on. Causes include: − Shorting (bare wires touching) of positive and negative speaker wires. − Using the subwoofer in a hot environment without proper ventilation. Consult your dealer if the problem occurs again after turning the unit on. • Turn the unit off, disconnect the AC power supply cord, and consult your dealer. Sound 7 - - Pages • The source may be stereo. Use Dolby Pro LogicII or SFC. 15 • You cannot use Dolby Pro LogicII or SFC when input is PCM with sampling frequencies of 96 or 88.2 kHz. Radio • 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. 15 Pages 12 12 19 - - • Press and hold [H.BASS] on the main unit so "DEFEAT" appears (the DSP 19 is defeated). This should reduce noise. The unit cannot play multiple channel sound while the DSP is defeated, so repeat this to reengage the DSP. Panasonic Consumer Electronics Company, Division of Panasonic Corporation of North America One Panasonic Way Secaucus, New Jersey 07094 http://www.panasonic.com C 2005 Matsushita Electric Industrial Co., Ltd Printed in Malaysia Panasonic Puerto Rico, Inc. Ave. 65 de InfanterÍa, Km. 9.5 San Gabriel Industrial Park, Carolina, Puerto Rico 00985 Panasonic Canada Inc. En 5770 Ambler Drive Mississauga, Ontario L4W 2T3 www.panasonic.ca RQT7949-1P H0105ZZ1025