JVC LT-42C550 Instruction Manual page 56

Other Information
9
Horizontal / Vertical bar or picture
shaking
Poor reception on some channels
Lines or streaks in pictures
No pictures when connecting HDMI
Picture appears in wrong ratio
The audio function does not work.
Picture OK but no sound
No output from one of the speakers
Unusual sound from inside the TV
No sound when connecting HDMI
Audio noise
Distorted sound
Password
Lost password
There is a problem in PC mode.
The signal is out of range (Invalid
format)
Vertical bar or stripe on background
& horizontal incorrect position
Screen colour is unstable or shows a
single colour
Channels are not recording.
Not all channels record
56
• Check for local interference such as an electrical appliance or power tool.
• Station or cable channel may be experiencing problems, tune to another station.
• Station signal is weak, reposition the aerial for better reception.
• Check for sources of possible interference.
• Check aerial (Change the position of the aerial.)
• Check if the input source is HDMI1 / HDMI2 / HDMI3.
• Adjust the Aspect Ratio settings in the PICTURE menu or press the ASPECT button
on the remote control.
• Press the VOL + / – buttons.
• Sound muted? Press the
• Try another channel. The problem may be caused by the broadcaster.
• Adjust the Balance settings in the SOUND menu.
• A change in ambient humidity or temperature may result in an unusual noise when
the TV is switched on or off and does not indicate a fault with the TV.
• Check if the input source is HDMI1 / HDMI2 / HDMI3.
• Keep the RF coaxial cable away from other connected cables.
• Adjust the SOUND MODE setting in the SOUND menu, depending on the type of
program you are watching.
• If still have distorted sound, switch off the DTS TruSurround in SOUND menu, then
re-adjust the SOUND MODE setting in the SOUND menu.
• Select the Set Password setting in the LOCK menu, then enter the following master
password "9527". The master password clears your previous password and allows
you to enter a new password.
• Adjust the resolution, horizontal frequency, or vertical frequency.
• Use Auto configure or adjust clock, phase, or H/V position.
• Check the signal cable.
• Reinstall the PC video card.
• You can only record free to air channels.
• You may have you run out of space on your USB storage device. Delete some files or
use another USB storage device.
• Check that there were no recording conflicts from scheduled series recordings.
button.