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5. Service Modes, Error Codes, and Fault Finding
Index of this chapter:
5.1 Test Points
5.2 Service Modes
5.3 Start-up
5.4 Service Tools
5.5 Error Codes
5.6 The Blinking LED Procedure
5.7 Protections
5.8 Fault Finding and Repair Tips
5.9 Software Upgrading
5.1
Test Points
As most signals are digital, it will be difficult to measure
waveforms with a standard oscilloscope. However, several key
ICs are capable of generating test patterns, which can be
controlled via ComPair. In this way it is possible to determine
which part is defective.
5.2
Service Modes
The Service Modes are used for different purposes:
•
Service Alignment Mode (SAM) offers several features for
the service technician.
•
Customer Service Mode (CSM) is used for communication
between the call centre and the customer.
Note: Sets within the new model range require a new remote
control (RC). Some buttons carry a new name or symbol.
This has an impact on the activation of the Service Modes.
For instance the "MENU" button is now called "HOME" or is
marked with a "house" icon.
5.2.1
Service Alignment Mode (SAM)
Purpose
In this mode a technician can:
•
perform (software) alignments,
•
change option settings,
•
easily identify the actual software version,
•
view operation hours,
•
display or clear the error code buffer.
How to Activate SAM
Using a standard RC transmitter:
1. Key in code "062596" and press the "INFO" or "OK" button.
When the SAM is active, a service warning message will
appear on the screen.
2. Continue pressing the "OK" button on the RC.
Contents of SAM
•
Hardware Info.
–
A. Software version: Displays the version of the main
software.
The structure is "AAABB_X.Y.W.Z", with:
•
AAA: the chassis name.
•
BB: the Product ID.
•
X.Y.W.Z: the software version, where "X" is the
main version number (different numbers are not
compatible with each other) and "Y.W.Z" is the sub
version number (a higher number is always
compatible with a lower number).
Example: AND1E_1.2.3.4
–
B. Standby processor version: Displays the software
version of the standby processor.
–
C. Production Code: Displays the production code of
the TV-set. It is the serial number, which is printed on
the back of the set.
Note: If the NVM has been replaced or initialized after
corruption, then re-write the production code to NVM.
The update can be done via the NVM editor available
in SAM.
•
(Shop) Operation hours. Displays the accumulated total
of operation hours (not the standby hours).
Service Modes, Error Codes, and Fault Finding
Every time the TV-set is switched "on/off" 0,5 hours is
added to this number.
•
Errors (followed by maximum 10 errors). The most
recent error is displayed at the upper left, for an
explanation of the errors refer to section
•
Reset Error Buffer. To reset the error buffer, press the
"cursor right" button (or "OK") and the "OK" button.
•
Alignments. This will activate the "ALIGNMENTS"
sub-menu. Refer to Chapter
•
Options numbers. Provides extra features for Service.
For more info refer to chapter
Note that if the option code numbers are changed, these
have to be confirmed with pressing the "OK" button before
the options are stored, otherwise changes will be lost.
•
Initialise NVM. (Not applicable) The moment the
processor recognizes a corrupted NVM, the "initialize
NVM"-line will be highlighted. Now, two actions are
possible (depending on the service instructions of that
moment):
–
Before initializing, save the content of the NVM for
development analysis, This will give the service
department an extra possibility for diagnosis (e.g.
when Development asks it).
–
Initialise the NVM.
Note: When the NVM is corrupt or when it has been replaced,
there is a change that no picture appears because the display
code is not correct.
So, before initializing the NVM via the SAM, enter the correct
display option to have the necessary picture.
Apply the following method to adapt this option via the standard
remote control. Refer to Chapter
correct option number values.
How to change the display option
1. On the standard RC, key in code "062598" and press the
"MENU" or "HOME" button.
2. Replace the digits of string "XXX" by the decimal display
code present on the sticker in the set.
Make sure to key in all three digits (include leading zero's).
Display Option
Code
39mm
PHILIPS
040
MODEL:
32PF9968/10
PROD.SERIAL NO:
AG 1A0620 000001
(CTN Sticker)
Figure 5-1 Location of Display Option Code sticker
When the action above is successful, the front LED will go out,
indicating that the RC sequence was correct.
After the display option in the NVM is changed, the TV-set will
go to standby mode.
When the NVM was corrupted or empty before this action, it will
first be initialized (loaded with default values). The initialization
can take up to 20 seconds.
•
Store (go right). Press button "cursor right" or "OK" to
store all options and alignments.
•
Software maintenance.
In case of specific problems, Development can ask for this
logging.
–
SW Events.
–
HW Events.
- Event 26: is logged after the TV-set reboots due to a
power dip.
back to
div. table
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5.
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6.
Alignments.
6.
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6. Alignments
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EN 21
Codes".
for details and
090819
2014-Oct-22
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