Panasonic sc-ht845 Manuale Utente

Pagina di 36
34
RQT8225
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, consult your dealer for instructions.
Power
Page
Unresponsive or inoperable function
Specific operation undesirable or unexpected
Subtitle
Marker
A-B Repeat
Sound abnormal or improper
Menus
No power.
≥Insert the AC mains lead and system cable securely.
9
The unit is automatically 
switched to the standby mode.
≥The Sleep timer was working and had reached the set time limit.
28
No response when any buttons 
are pressed.
≥This unit cannot play discs other than the ones listed in these operating instructions.
≥The unit may not be operating properly due to lightning, static electricity or some other external 
factor. Turn the unit off and then back to ON. Alternatively, turn the unit off, disconnect the AC 
mains lead, and then reconnect it.
≥Condensation has formed: Wait 1 to 2 hours for it to evaporate.
11
No response when remote 
control buttons are pressed.
≥Check that the batteries are installed correctly.
≥The batteries are depleted. Replace them with new ones.
≥Aim the remote control at the remote control signal sensor and operate.
9
9
10
No picture or sound.
≥Check the video or audio connection.
≥Check the power or input setting of the connected equipment.
≥Check that the disc has something recorded on it.
4, 5, 
7, 8, 
26

You have forgotten your ratings 
password.
Reset all the settings to Factory 
Preset.
≥While stopped and “DVD/CD” is the source, press and hold [∫] on the main unit and [S10] on 
the remote control until “Initialised” disappears from the television. Turn the unit off and on again.
All settings will return to the default values.
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 correct play time will not be displayed. This is normal. 
≥This is normal on DivX video. 
Folders deeper than the eighth 
layer on a data disc are not 
displayed correctly. 
[WMA] [MP3] 
[JPEG] [MPEG4] [DivX]
≥Folders deeper than the eighth layer are displayed as the eighth layer.
A menu screen appears during 
skip or search. 
[VCD]
≥This is normal for Video CD’s.
Playback control menu doesn’t 
appear. 
[VCD]
 with playback control
≥Press [∫] twice and then press [1] (play).
The program and random play 
functions do not work. 
[DVD-V]
≥These functions do not work with some DVD-Videos.
Programmed items are not 
played. 
[DVD-V]
≥Some items cannot be played even if you have programmed them.
The on-screen menu shows “2” 
as a soundtrack option when 
[AUDIO] is pressed, but the 
audio does not change. 
[DVD-A]
≥Even if a second soundtrack isn’t recorded, two numbers will normally be shown.
Play doesn’t start.
≥This unit may not play WMA and MPEG4 that contains still picture data. 
≥If playing DivX VOD content, refer to the homepage where you purchased the DivX VOD 
content. (Example: www.divx.com/vod) 
[DivX]
≥If a disc contains CD-DA and other formats, proper playback may not be possible.

Play restarts from the beginning 
of the track when soundtrack is 
changed. 
[DVD-A]
≥This is normal on DVD-Audio.
Scenes are skipped 
intermittently. 
[RAM] [DVD-RW[‹VR›]
 
[DVD-V]
≥If you change the volume or sound field/quality setting during ADVANCED DISC REVIEW, the 
function continues without the on-screen display. Press [ADVANCED DISC REVIEW] again to 
cancel the function.
14
Subtitle position is wrong.
≥Adjust the position. (“Subtitle Position” in Display Menu)
19
No subtitles.
≥Display the subtitles.
≥Subtitles may not be displayed depending on the disc. [DivX]
15
Cannot add markers.
≥You cannot add markers. [RAM] [DVD-RW[‹VR›]
≥If the disc’s elapsed play time doesn’t appear on the unit’s display, you cannot add markers.

Point B is automatically set.
≥The end of an item becomes point B when it is reached.
A-B Repeat is automatically 
canceled.
≥A-B Repeat is canceled when you press [QUICK REPLAY].
Sound distorted.
≥Noise may occur when playing WMA.
Effects do not work.
≥Some audio effects do not work or have less effect with some discs.
≥Multi Re-master (
[HT845]
 
[HT885]) and Dolby Pro Logic II do not work if you have changed the 
play speed.

Humming is heard during play.
≥An AC mains lead or fluorescent light is near the subwoofer. Keep other appliances and cables 
away from the subwoofer.
No sound
≥There may be a pause in sound when you change the play speed.
≥Audio may not be output due to how files were created. [DivX]
17
Sound mixed.
≥If you are using the SCART (AV) terminal and the audio input terminals (TV AUDIO IN) at the 
same time, turn off the connected equipment at one or the other terminals.
The Setup menu cannot be 
accessed.
≥Select “DVD/CD” as the source.
≥Cancel all group, program and random play.
15
T
roub
le
s
hoo
ting guide
HT535_845_885En.book  Page 34  Monday, April 18, 2005  3:17 PM