Troubleshooting guide

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 chart do not solve the problem, refer to “Product information” on page 15.

 

 

Power

 

Page

 

 

No power.

Insert the AC power supply cord securely.

12

 

 

The unit is automatically switched

The Sleep timer was working and had reached the set time limit.

33

 

 

to standby mode.

 

 

 

 

 

 

 

 

 

Unresponsive or inoperable function

 

 

 

 

 

 

 

 

No response when any buttons are

This unit cannot play discs other than the ones listed in these operating instructions.

14

 

 

pressed.

The unit may not be operating properly due to lightning, static electricity or some other external

 

 

 

factor. Turn the unit off and then back on. Alternatively, turn the unit off, disconnect the AC power

 

 

 

 

supply cord, and then reconnect it.

 

 

 

Condensation has formed. Wait 1 to 2 hours for it to evaporate.

 

 

No response when remote control

Check that the batteries are installed correctly.

12

 

 

buttons are pressed.

The batteries are depleted. Replace them with new ones.

12

 

 

 

Aim the remote control at the display and operate.

13

 

 

 

 

 

 

 

Cannot play DVDs.

CD Mode is on. Press [CD MODE] to turn CD Mode off.

18

 

 

No picture or sound.

Check the video or speaker connection.

6, 7,

 

 

 

 

10, 11

 

 

 

Check the power or input setting of the connected equipment and the main unit.

 

 

 

Check that the disc has something recorded on it.

 

 

 

 

 

 

 

You have forgotten your ratings

While stopped and “DVD/CD” is the source, press and hold [] (Stop) on the main unit and [S10] on

 

 

password.

the remote control until “Initialized” disappears from the television. Turn the unit off and on again.

 

 

 

Reset all the settings to Factory Preset.

All settings will return to the default values.

 

 

 

Specific operation undesirable or unexpected

 

 

 

 

 

 

 

 

It takes time before play starts.

Play may take time to begin when an MP3 track has still picture data. Even after the track starts, the

 

 

[MP3]

correct play time will not be displayed. This is normal.

 

 

 

Folders on a data CD are not

Folders deeper than the eighth layer are displayed as the eighth layer.

 

 

displayed correctly.

 

 

 

 

[WMA] [MP3] [JPEG]

 

 

 

 

 

 

 

 

 

A menu screen appears during

This is normal for Video CDs.

 

 

skip or search. [VCD]

 

 

 

 

Playback control menu does not

Press [STOP] twice and then press [1 PLAY].

 

 

appear. [VCD] with playback control

 

 

 

 

 

 

 

 

 

Program and Random play do not

These functions do not work with some DVD-Videos.

 

 

work. [DVD-V]

 

 

 

 

Selecting audio soundtrack “2”

Even if a second soundtrack is not recorded, two numbers are normally shown.

 

 

does not change the audio. [DVD-A]

 

 

 

 

 

 

 

 

 

Play restarts from the beginning

This is normal for DVD-Audio.

 

 

when the soundtrack is changed.

 

 

guide

 

[DVD-A]

 

 

 

Scenes are skipped intermittently.

If you change the volume or sound effects during Advanced Disc Review, the function continues

23

 

 

 

 

[DVD-VR] [DVD-V]

without the on-screen display. Cancel the function.

 

Troubleshooting

 

 

 

 

 

Subtitle

 

 

 

 

 

 

 

 

 

 

 

 

 

Subtitle position is wrong.

Adjust the position. (“Subtitle Position” in Display Menu)

24

 

 

No subtitles.

Display the subtitles. (“Subtitle” in Main menu)

22

 

 

 

 

 

 

 

Subtitles overlap the closed

Clear the subtitles.

22

 

 

captions.

 

 

 

 

Marker

 

 

 

 

 

 

 

 

 

Cannot add markers.

You cannot add markers with DVD-RAM or DVD-R/-RW (DVD-VR) discs.

 

 

 

If the disc’s elapsed play time does not appear on the unit’s display, you cannot add markers.

 

 

A-B repeat

 

 

 

 

 

 

 

 

 

Point B is automatically set.

The end of an item becomes point B when it is reached.

 

 

 

 

 

RQT8720

34

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Panasonic SC-HT744 operating instructions Troubleshooting guide, Power, Unresponsive or inoperable function

SC-HT744 specifications

The Panasonic SC-HT744 is a multifaceted home theater system that delivers an immersive audio experience, making it a popular choice for consumers seeking enhanced home entertainment. This system integrates various technologies to optimize sound quality, connectivity, and ease of use.

One of the standout features of the SC-HT744 is its 5.1 channel surround sound capability. This setup includes a powerful subwoofer and five satellite speakers, each strategically designed to provide rich, deep bass and clear highs. The result is a well-rounded sound stage that makes you feel as if you are part of the action, whether watching movies, playing video games, or listening to music.

The SC-HT744 is equipped with Dolby Digital and DTS decoding technology, ensuring that you can enjoy your audio content in high-definition formats. These technologies allow the system to decode complex soundtracks and create a three-dimensional sound environment that fully immerses the listener. Whether you're enjoying a suspenseful thriller or an action-packed adventure, the audio experience feels rich and dynamic.

In terms of connectivity, the SC-HT744 features multiple input options including HDMI, optical, and RCA connections, making it easy to connect various devices such as Blu-ray players, game consoles, and streaming devices. The inclusion of HDMI enhances video quality, allowing for high-definition video outputs alongside audio, ensuring a seamless viewing experience.

The system also incorporates advanced audio processing technologies. For example, Panasonic’s Virtual Surround technology simulates surround sound from a stereo source, enabling a more expansive sound experience even when using fewer speakers. Moreover, dynamic range control enhances softer sounds while keeping louder volumes in check, resulting in a balanced audio output.

Another key characteristic is the user-friendly interface, which includes an easy-to-navigate remote control. The design is intuitive, allowing users to switch between different audio modes and adjust settings effortlessly.

With an elegant design befitting any living space, the Panasonic SC-HT744 delivers not just in performance but also in aesthetics. It combines functionality with style, making it a desirable addition to any home setup.

Overall, the Panasonic SC-HT744 exemplifies a commitment to quality audio and user convenience, making it an excellent choice for anyone looking to elevate their home entertainment experience.