JVC LT-Z26EX6 Service Manual page 40

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
33
(continued)
Actions
Adjust the "Bass" and "Treble".
If receiving a poor signal in "Stereo / t·u", switch to "Mono".
Adjust the channel reception using "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.
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" inputs and PC mode cannot be selected in
the sub-picture.
page Problem
28
Black or white dots
28
appear on the screen
11
28 No picture, no sound
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28
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Actions
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
page
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34