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EN 36
5.
Q528.1E LA
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.
5.9
Software 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.
5.9.2
Main Software Upgrade
The software image resides in the NAND-Flash, and is
formatted in the following way (refer to figure "NAND-flash
content"):
P
r a
t i t
o i
n
JFFS2 partition 1
(application read write data)
JFFS2 partition 0
(Application read only once data)
JFFS2 partition 0
(Application read only upgradable data)
SQUASHFS partition
BFFS partition 2 (DVD OK)
BFFS partition 1 (DVD cursor down)
BFFS partition 0
Block 0
Service Modes, Error Codes, and Fault Finding
Nand Flash content
C
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e t
t n
C
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a
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n
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l b
, e
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P
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D
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I
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wizard pictures, display file, cabinet file,
upgrade assistant, ...
Main software (Mips)
Linux structure (root file system)
Default software upgrade application
TriMedia software
boot batch file 2
Back up software upgrade application
boot batch file 1
Linux kernel
JETT : needed for ComPair
Jaguar Boot loader
boot batch file 0
µBTM
partition table
Figure 5-15 NAND-Flash content
Figure 5-14 EDID-NVM pins
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!
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