Panasonic DMR-EX78 quick start Troubleshooting guide

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.

The following do not indicate a problem with this unit:

≥Regular disc rotating sounds.		≥The unit freezes due to one of its safety devices being
≥Poor reception due to atmospheric conditions.		activated. (Press and hold [/I] on the main unit for 10
≥Image disturbance during search.		seconds.)
≥Interruptions in reception due to periodic satellite broadcasting		≥When the unit is turned on or off, there may be an unexpected
breaks.		sound. This does not indicate a problem with this unit.
≥Operations are slow to respond in power save mode.
≥Operations do not work due to a poor-quality disc. (Try again using a
Panasonic disc.)
Power			Page
No power.	≥Insert the AC mains lead securely into a known active household mains socket.		8, 70, 71
The unit does not turn on
pressing [ DVD].
The unit switches to standby	≥One of the unit’s safety devices is activated. Press [/I] on the main unit to turn the unit on.		—
mode.
The power is turned off	≥If you connected this unit to a “HDAVI Control” compatible TV with an HDMI cable, this unit will		36
automatically.	be automatically set to standby mode when the TV is set to standby mode.
Displays
The display is dim.	≥Change “FL Display” in the Setup menu.		63
“0:00” is flashing on the unit’s	≥Set the clock.		65
display.
The time recorded on the disc	≥Times shown may disagree with actual times.		—
and the available time shown do	≥Available recording space on DVD-RW (DVD-Video format) or +RW increases only when the		—
not add up.	last recorded title is deleted. It does not increase if other titles are deleted.		—
The displayed time of this unit is	≥Even if you delete recorded content from the DVD-R, DVD-R DL, +R or +R DL, there is no
different from the actual	increase in disc space.		—
recording time or MP3 recording	≥More disc space than the actual recording time is used after recording or editing the DVD-R,
time.	DVD-R DL, +R or +R DL 200 times or more.		—
	≥While searching, the elapsed time may not display correctly.
The clock is not correct.	≥Under adverse reception conditions, etc., the automatic time correction function may not work.		65
	In this case, “Automatic” is automatically turned to “Off”. If re-setting the Auto Clock Setting
	does not work, set the time manually.
Compared to the actual recorded	≥The displayed recording/play time is converted from the number of frames at 29.97 frames		—
time, the elapsed time displayed	(equal to 0.999 seconds) to one second. There will be a slight difference between the time
is less.	displayed and the actual elapsed time (e.g., actual one-hour elapsed time may display as
(Only when recording in NTSC)	approximately 59 minutes 56 seconds). This does not affect the recording.
“U88” is displayed and the disc	≥The unit is carrying out the recovery process. Do the following to eject the disc.		—
cannot be ejected.	1 Press [/I] on the main unit to switch the unit to standby.
	If the unit doesn’t switch to standby, press and hold [/I] on the main unit for about
	10 seconds. The unit is forcibly switched to standby.
	2 While the unit is off, press and hold [∫] and [CH W]on the main unit at the same time for
	about 5 seconds. Remove the disc.
TV screen and video
Television reception worsens	≥This can occur because the signals are being divided between the unit and other equipment.		—
after connecting the unit.	It can be solved by using a signal booster, available from audio-visual suppliers. If it is not
	solved by using a signal booster, consult the dealer.
The digital channel information or	≥Select the length of time (3–10 sec.) that the “On-Screen Messages” in the Setup menu will		63
control panel does not appear.	be displayed.		—
	≥The digital channel information will not appear during playback or recording.
	≥Analogue broadcasts do not support the digital channel information.		—
	≥The control panel is only displayed when connected to a TV with “HDAVI Control 2” or “HDAVI		37
	Control 3” function.
The grey background does not	≥Select “On” in “Grey Background” in the Setup menu.		63
appear.
Picture does not appear during	≥Timer recordings work regardless whether the unit is on or off. To confirm the timer recording		—
timer recording.	is going to work properly, turn the unit on.
The 4:3 aspect ratio picture	≥Use the television to change the aspect. If your television does not have that function, set		54
expands left and right.	“Progressive” in the Picture menu to “Off”.		64
Screen size is wrong.	≥Check the settings for “TV Aspect” in the Setup menu.
	≥If you connect an HDMI cable, set “Aspect for 4:3 Video” to “16:9” in the Setup menu.		64
	≥By setting “Aspect for Recording” to “Automatic”, there is a chance that the recording will be		61
	made using the wrong aspect. Match the aspect settings to the broadcast when recording.		61
	≥Set “Rec for High Speed Copy” to “On”, and set the “Aspect for Recording” to “4:3”.
	It may be possible to adjust the display mode on the TV. Refer to your television’s operating
	instructions.
The screen changes	≥The display may turn to the screen saver mode automatically if there is no operation for		—
automatically.	5 minutes or more. Press [OK] to return to the previous screen.

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