Philips FTP1.1E Service Manual page 28

EN 28 5.
Table 5-3 Repair tips
Phenomenon
No picture, LED blinking at 3 Hz.
No picture, LED blinking with code
6-6-6 or 18-18-18.
No picture, LED blinking with code
1-1-1.
No RC-reception. LED does not
echo RC-commands.
Picture is not synchronised.
Picture is distorted.
Picture with horizontal stripes.
No menu, no OSD.
No NextView (EPG).
No Teletext.
Problems caused by EPG
(Electronic Program Guide).
The TV set "hangs".
NexTView EPG is not functioning
only Teletext guide.
Various symptoms, due to missing
local supply voltage.
5.9
Software Downloading
In this chassis, you can upgrade the software via ComPair
without removing the back cover of the set. The switch, which
is needed for the software downloading procedure, can be
reached through the cooling gaps of the back cover. The switch
is located next to the SAM/SDM pads and can be operated with
a long and thin screwdriver. Make sure that you do not damage
the PWB with sharp objects. You can find more information on
how this procedure works in the ComPair file. It is possible that
not all sets are equipped with the hardware, needed to make
software upgrading possible. To speed up the programming
process the firmware of the ComPair interface can be
upgraded. See paragraph "How To Order" for the order number
FTP1.1E Service Modes, Error Codes, and Fault Finding
Possible Cause
Set is in protection due to various causes.
For error codes see error-code list.
No communication on slow I2C- or fast I2C-bus.
No communication on NVM-I2C bus to the uP.
uP circuitry or RC-receiver is defective.
The sync is derived in the HIP.
Check video-path in Service Default Mode.
Pixel Plus processing is malfunctioning.
Probably a defective uP.
IC7012 defective or not powered.
IC7007 defective or not powered.
Problems with NexTView EPG broadcasts.
EPG version 2C3 is switched off during production. To switch from Teletext guide to EPG 2C3. Press for 4 seconds, simultaneously the Menu button
An interrupted fuse, NFR-resistor or connection.
Repair tip
You have no picture, so:
Read the error buffer via ComPair (error buffer is accessible when set is in protection, compare-
file will guide you to this)
Read the blinking LED information via standard remote command <mute>06250x<ok>.
Or you read the error code sequence via standard remote command <mute>062500<ok>.
When you have found the error, check the circuitry related to the supply voltage and I2C-
communication or the circuitry that triggers the protection.
As processor cannot communicate with one of the 2 busses it the standby-led spontaneously
starts blinking 6-6-6-etc or 18-18-18-etc... If in the error buffer somewhere is an error 6 or 18,
these will have the highest priority starting the mentioned blinking.
Measure dependent of the error on the I2C-bus which device is loading the bus. (Use I2C-
overview)
As the uP cannot communicate with the NVM I2C bus, it spontaneously starts blinking 1-1-1.
Note: when there is no access to the NVM, a lot of picture setting can go wrong.
In case the set does react on a local keyboard operation, you must check the RC-receiver
circuitry (diagram LD).
Check crystals in the HIP circuit on bad contacts.
Investigate whether there is an error code present in the error buffer. In case there is one, check
the I2C-bus and/or supply lines (see overview supply lines).
Measure and check signal path Tuner-HIP-FBX-EPLD.
Check functionality on circuitry (B3a, B3b, and B3c) of PICNIC (7713), FALCONIC (7718, EAGLE
(7724) and/or field memories (7714, 7717, 7719, 7722 and 7723.
Tip: the whole Pixel Plus chipset (3 ICs + 5 Field Memories) can be diagnosed via ComPair.
Measure test points B61to B64 on diagram B5A.
Check circuitry around IC7012 on diagram B5A.
Check circuitry around IC7007 on diagram B5A. Check also B61 to B64 around uP on diagram
B5A.
To switch from EPG 2C3 to Teletext guide. Press for 4 seconds, simultaneously the Menu button
on the TV and digit 0 on the remote. The option settings for NexTView type and Flashram will not
change.
on the TV and digit 1 on the remote. The option settings for NexTView type and Flashram will not
change.
When no symptom or error code leads you to a specific circuitry, use the supply lines overview
(see supply lines overview), for a quick scan of all supply lines.