Service Modes, Error Codes, and Fault Finding
EN 36
Q528.1E LA
5.
5.8.10 Display option code
Caution:
In case you have replaced the SSB, always check the
display option code in SAM, even if you have picture. With a
wrong display option code it is possible that you have picture,
but that in certain conditions you have unwanted side-effects.
5.8.11 Upgrade EDID NVM
To upgrade the EDID NVM you must short circuit pin 7 of the
EDID NVM to ground. Therefore some test points (EDID1,
EDID2 and EDID3) are foreseen (figure “EDID-NVM pins”).
See ComPair for further instructions.
Figure 5-14 EDID-NVM pins
5.9
S
oftware Upgrading
5.9.1
Introduction
The set software and security keys are stored in a NAND-
Flash, which is connected to the PNX8535 via the PCI bus.
It is possible
for the user
to upgrade the
main
software via the
USB port. This allows replacement of a software image in a
stand alone set, without the need of an E-JTAG debugger. A
description on how to upgrade the main software can be found
in the DFU.
Important:
When the NAND-Flash must be replaced, a new
SSB must be ordered, due to the presence of the security
keys!!! (copy protection keys, MAC address, ...).
Perform the following actions after SSB replacement:
1.
Set the correct option codes (see sticker inside the TV).
2.
Update the TV software (see the DFU for instructions).
3.
Perform the alignments as described in chapter 8 (section
“Reset of Repaired SSB”).
4.
Check in CSM if the HDMI keys are valid.
For the correct order number of a new SSB, always refer to the
Spare Parts list!
5.9.2
Main
S
oftware Upgrade
The software image resides in the NAND-Flash, and is
formatted in the following way (refer to figure “NAND-flash
content”):
Figure 5-15 NAND-Flash content
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Linux structure (root file system)
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TriMedia software
boot batch file 2
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Back up software upgrade application
boot batch file 1
Linux kernel
JETT : needed for ComPair
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FUS UPG
UpgradeAll UPG
ONE ZIP
FlashUtils UPG
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