Hitachi L42S503 - Manual (Page 42)

42
Troubleshooting
Symptom and Checklist
SYMPTOM CHECKLIST PAGES
No picture - no sound Check the Indicating lamp status (Off, Red, Blue). •
Check the connection of the power cord and/or other cables. •
Check if the power of the unit or external equipment is ON. •
Check if the correct Video input is selected. •
Check if the unit is in “Standby mode” . •
Adjust the values in “Video menu” and “Audio menu”. •
9, 12,
14~17
30~32
Multiple images-normal sound Check the connections to external equipment. • 14~17
Intermittent interference Check if the source of interference is shielded correctly. •
Move these kinds of electrical devices away from the unit. •
43
Normal picture, but no sound Check the volume level. •
Check if the MUTE button has been pressed or not. •
Check the connections to external equipment. •
Try next/other Audio Language. •
18,
14~17
, 32
No picture - normal sound Check the value level of “Brightness” and “Contrast” in “Video Menu”. • 30
The remote control does not work. Check if the batteries are installed correctly. •
The batteries might be exhausted. Replace them with new ones. •
Remove all obstructions from in front of the sensor window on the unit. •
Check if the buttons on the control panel are working. •
6, 9
The buttons on both the remote control and
control panel do not work.
Unplug and connect the power cord again. • 7, 33
Normal picture but no color-normal sound Check the connections to external equipment. • 14~17
No picture
The Indicating lamp → Off
Check if the power cord is plugged into the socket securely. • 7, 9
No picture
The indicating lamp → Blue
Check if the signal cable is connected correctly and securely. •
Adjust the level of Brightness and Contrast lower. •
12, 14~17,
30
Some screen display aspects cannot be
switched in.
Check the signal status by pressing the INFO button on the remote control. The available •
screen display aspect is different depending on the current signal status.
11, 20
53
No power Check the power cord is connected to the AC oulet. • 9, 12
Turns Off by itself Check or ensure Sleep Timer settings are not activated. • 11, 18, 33
Turns On by itself Check if the HDMI-CEC feature is activated. • 37
Picture may “block” or freeze when watching
a digital channel.
Check signal strength under ”Signal Strength”. • 39
HDMI Issues
SYMPTOM CHECKLIST PAGES
No picture - no sound Make sure you have selected the correct HDMI input. Toggle through them while HDMI •
device is ON or during playback.
Unplug and re-plug HDMI connection while TV and HDMI source device are powered on. •
Turn TV and HDMI device off. Turn TV on first and then HDMI device second. •
14, 15, 17,
19
Error notice comes to screen Try pressing “exit” on HDMI device remote control and then on TV remote to find source of •
the error OSD. If error persist or comes back even after pressing exit, try alternate HDMI
input on TV.
Unplug and re-plug HDMI connection while TV and HDMI source device are powered on. •
Turn TV and HDMI device off. Turn TV on first and then HDMI device second. •
9, 11
14, 17
Normal picture, but no sound Check HDMI Audio settings under the HDMI device menu (of the HDMI source device). In •
order to get sound on TV, HDMI output must be set to PCM option.
No sound from TV Optical Out when using
HDMI devices
Change Digital Output selection. •
As an option, use audio optical output from HDMI source device directly to separate Audio •
Amplifier.
17
Picture flickers during channel change w/
using HDMI Set Top Boxes
This is normal operation from the source switching delay itself. It’s not an indicator of a TV •
malfunction.
Picture is blurry or fuzzy If HDMI source is HD capable, ensure it’s output is set to 1080i or 720p under HDMI device •
menu (of the HDMI source device).
Pixelization noise or loss connection (“No
Signal” message display)
Check HDMI input picture format, if use 1080p format confirm cable length it is recommended •
that the length of the cable should be less than 5 meters, or change HDMI input picture
format to 1080i.