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5.8
Fault Finding and Repair Tips
Note:
•
It is assumed that the components are mounted correctly
with correct values and no bad solder joints.
•
Before any fault finding actions, check if the correct options
are set.
5.8.1
NVM Editor
In some cases, it can be convenient if one directly can change
the NVM contents. This can be done with the "NVM Editor" in
SAM mode. With this option, single bytes can be changed.
Caution:
•
Do not change these, without understanding the function of
each setting, because incorrect NVM settings may
seriously hamper the correct functioning of the TV set!
•
Always write down the existing NVM settings, before
changing the settings. This will enable you to return to the
original settings, if the new settings turn out to be incorrect.
5.8.2
No Picture
When you have no picture, first make sure you have entered
the correct display code. See paragraph
the instructions. See also
5.8.3
Unstable Picture via HDMI input
Check if HDMI EDID data is properly programmed.
5.8.4
No Picture via HDMI input
Check if HDCP key is valid. This can be done in CSM.
5.8.5
TV will not start-up from Stand-by
Possible Stand-by Controller failure. Re-flash the software.
5.8.6
CSM
When CSM is activated and there is a USB memory stick
connected to the TV, the software will dump the complete CSM
content to the USB memory stick. The file (Csm.txt) will be
saved in the root of the USB memory stick.
5.8.7
Loudspeakers
Make sure that the volume is set to minimum during
disconnecting the speakers in the ON-state of the TV. The
audio amplifier can be damaged by disconnecting the speakers
during ON-state of the set!
5.8.8
Display option code
Attention: In case the SSB is replaced, always check the Panel
Code in CSM, even when picture is available. Performance
with the incorrect display option code can lead to unwanted
side-effects for certain conditions.
Service Modes, Error Codes, and Fault Finding
6.4 Option Settings
Table
6-3.
for
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QM14.3E LA
5.
EN 21
2014-Apr-17
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