Technical Information - JVC LT-42GZ78 Instructions Manual

Troubleshooting
Problem
Poor sound
Wrong screen size
No picture, no sound
No sound
Green and distorted
screen
Some functions do not
work
Some inputs cannot
be selected in the
sub-picture
Black or white dots
appear on the screen
No picture, no sound
39
(continued)
Actions
Adjust the "MaxxBass" and "MaxxTreble".
If receiving a poor signal in "Stereo / t·u", switch to "Mono".
Adjust the channel reception using "Edit/Manual".
Switch "Size" in "HDMI Setting" to "1" or "2".
Use the cable marked with HDMI logo.
Check if the device is compliant with HDMI.
Switch "Audio" in "HDMI Setting" to "Digital" or "Auto" for
HDMI devices, or "Analogue" or "Auto" for DVI devices.
(Not available for HDMI-2 and HDMI-3)
Wait a little for the signal to stabilize when switching the
signal format for an "HDMI" device.
It is not a malfunction. Some functions (dark background) in
the menu do not work depending on the situation.
"VIDEO-1 (Component signal)", "VIDEO-3 (Component
signal)", "HDMI-1", "HDMI-2" and "HDMI-3" inputs and PC
mode cannot be selected in the sub-picture.
LCD panels use fi ne dots ("pixels") to display images.
While more than 99.99% of these pixels function properly,
a very small number of pixels may not light, or may light all
the time.
Please understand that this is not a malfunction.
Some inputs does not output from OUT terminal

Technical information

page
Group
34
Group-1 Turkish, Hungarian, English, German, French, Italian, Spanish, Portuguese, Greek, Swedish, Finnish
34
11
Group-2 Polish, Serbian, Croatian, Slovenian, Czech, Slovak, Rumanian, Hungarian, German, French, Italian, Swedish, Finnish
Group-3 Russian, Bulgarian, Lettish, Lithuanian, Estonian, Ukrainian, Serbian, Croatian, Slovenian, Czech, Slovak, English, German
Group-4 Arabic, Czech, Slovak, Hungarian, English, German, French, Italian, Spanish, Portuguese, Swedish, Finnish
Group-5 Farsi, Czech, Slovak, Hungarian, English, German, French, Italian, Spanish, Portuguese, Swedish, Finnish
34
If the characters are unreadable.
Sound and Colour system in your country or region
Area
–
Bahrain, Kuwait, Oman, Qatar, United Arab Emirates, Yemen, etc.
Indonesia, Malaysia, Singapore, Thailand, India, etc.
China, Vietnam, etc.
Asia, Middle East
Hong Kong, etc.
–
Islamic Republic of Iran, Lebanon, Saudi Arabia, etc.
34
Philippines, Taiwan, Myanmar, etc.
Russia, etc.
Czech Republic, Poland, etc.
Europe
Germany, Holland, Belgium, etc.
UK, etc.
–
Oceania Australia, New Zealand, etc.
Republic of South Africa, etc.
Africa Nigeria, etc.
Egypt, Morocco, etc.
–
Use this function when stereo sound or bilingual sound is hard to hear.
Set "Stereo / t · u" to "Mono"
–
PC Signals that can be displayed
*Macintosh* computers are not supported.
(Macintosh is a registered trademark of
Apple Computer, Inc.)
If the signal doesn't appear, check that the vertical
frequency on the PC is set to "60Hz".
–
Connect a "DVI" device to "HDMI-1" using "DVI-HDMI" conversion cable. Connect analogue sound output of the
DVI device to L and R terminals in IN HDMI-1.
22
Set "Audio" in "HDMI Setting" to "Analogue" or "Auto"
HDMI-2 and HDMI-3 input does not support analogue sound (IN HDMI-1).
HDMI-2 and HDMI-3 input does not support DVI devices.
Language group for teletext
Languages
Select different teletext language group.
Country or Region
Monoaural sound
(P. 34)
Resolution
Vertical frequency (Hz)
Connect "DVI" devices
(P. 34)
System System
B/G
PAL
D/K
I
B/G SECAM
M NTSC
SECAM
D/K
B/G PAL
I
B/G PAL
I
PAL
B/G
SECAM
640 x 480 (VGA) 1024 x 768 (XGA)
60.0 60.0
40