Main Software Upgrade; Manual Start Of The Main Software Upgrade Application; Stand-By Software Upgrade; Spi Service Pads View - Philips 42PF9731D Service Manual

5.9.2

Main Software Upgrade

The software image resides in the NAND-Flash, and is
formatted in the following way:
Partition 1
Trimedia2 image
Trimedia1 image
MIPS image
Partition 0
USB Download Application
uBTM (boot block)
Figure 5-18 NAND-Flash format
Executables are stored as files in a file system. The boot loader
(uBTM) will load the USB Download Application in partition 0
(USB drivers, bootscript, etc). This application makes it then
possible to upgrade the main software via USB.
Installing "Partition 0" software is possible via an external
EJTAG tool, but also in a special way with the USB stick (see
description in paragraph "Partition 0").
Partition 1 (Customer)
To do a main software upgrade (partition 1) via USB, the set
must be operational, and the "Partition 0" files for the VIPER
must be installed in the NAND-Flash!
The new software can be uploaded to the TV by using a
portable memory device or USB storage compliant devices
(e.g. USB memory stick). You can download the new software
from the Philips website to your PC.
Partition 0 (Service)
If the "Partition 0" software is corrupted, the software needs to
be re-installed.
To upgrade this "USB download application" (partition 0 except
the bootblock), insert an USB stick with the correct software,
but press the "red" button on the remote control (in "TV" mode)
when it is asked via the on screen text.
Caution:
• The USB download application will now erase both
partitions (except the boot block), so you need to reload the
main SW after upgrading the USB download application.
As long as this is not done, the USB download application
will start when the set is switched "on".
• When something goes wrong during the progress of this
method (e.g. voltage dip or corrupted software file), the set
will not start up, and can only be recovered via the EJTAG
tool!
5.9.3

Manual Start of the Main Software Upgrade Application

Normally, the software upgrading procedure will start
automatically, when a memory device with the correct software
is inserted, but in case this does not work, it is possible to force
the TV into the software upgrade application. To do so:
• Disconnect the TV from the Mains/AC Power.
• Press the "OK" button on a Philips DVD RC-6 remote
control (it is also possible to use the TV remote in "DVD"
mode).
• Keep the "OK" button pressed while connecting the TV to
the Mains/AC Power.
• The software upgrade application will start.
• When a memory device with upgrade software is
connected, the upgrade process will start.
Service Modes, Error Codes, and Fault Finding
USB CUSTOMER
USB SERVICE
EJTAG
E_14700_082.eps
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BJ2.4U/BJ2.5U LA
5.9.4

Stand-by Software Upgrade

It will be possible to upgrade the Stand-by software via a PC
and the ComPair interface. Check paragraph "ComPair" on
how to connect the interface. To upgrade the Stand-by
software, use the following steps:
1. Disconnect the TV from the Mains/AC Power.
2. Short circuit the SPI pins [2] on the SSB. They are located
outside the shielding (see figure "SPI service pads").
3. Keep the SPI pins shorted while connecting the TV to the
Mains/AC Power.
4. Release the short circuit after approx. two seconds.
5. Start up HyperTerminal (can be found in every Windows
application via Programs -> Accessories ->
Communications -> HyperTerminal. Use the following
settings:
– COM1
– Bits per second = 19200 (9600*)
– Data bits = 8
– Parity = none
– Stop bits = 1
– Flow control = Xon / Xoff (none*).
*Note: when having problems with upgrading, use the
values between brackets.
6. Press "Shift U" on your PC keyboard. You should now see
the following info:
– PNX2015 Loader V1.0
– 19-09-2003
– DEVID=0x05
– Erasing
– MCSUM=0x0000
– =
7. If you do not see the above info, restart the above
procedure, and check your HyperTerminal settings and the
connections between PC and TV.
8. Via "Transfer" -> "Send text file ...", you can send the
proper upgrade file to the TV (e.g. *.hex). This file will be
distributed via the Service Organization.
9. After successful programming, you must see the following
info (this can take several minutes!):
– DCSUM=0xECB3
– :Ok
– MCSUM=0xECB3
– Programming
– PCSUM=0xECB3
– Finished
10. If you do not see this info, restart the complete procedure.
11. Close HyperTerminal.
12. Disconnect and connect Mains/AC Power again.
Figure 5-19 SPI service pads
5. EN 37
2
F_15400_104.eps
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