Error Code - Philips 8601 Series Service Manual

EN 30 5. QM15.1E LA
5.4.6 How to copy NVM data to/from USB stick
Use folder "repair" when copying data to the USB stick!
When you download TV data to an empty inserted USB stick,
then the TV set will automatically create a folder "repair" on the
USB stick.
When data is send from a USB stick to a TV set, the intended
data must be available in the "repair" folder.
Refer to the Service Mode Overview.
Table 5-3 Service Mode Overview
Service Modes Description
SAM Service alignment mode.
Factory Mode Used for extended alignments.
CSM Three pages compact CSM info. There will be CSM dump
to USB-stick upon entering CSM-mode.
USB SW upgradeable SW-upgrading of the SSB flash memories can be done via
USB. The main SW can be upgraded with the downloaded
ZIP file.
NVM-Editor in SAM NVM-editor functions as in the past: Address and Value
field is a decimal value via digit entry.
Service Data New Service data in SAM for CTN, Prod. no., 12NC
programming with virtual keyboard.
USB copy/paste in Channel list, NVM data, Readable info.
SAM
UART logging There will be printout available in UART. No specifications
of the printout, per MTK provision/definition.
Display Option Code remote control remote control sequence "062598" +
"Menu" +
Display Panel Code.
Clear Buffer Item in SAM.
5.5 Error Codes
5.5.1 Error Code Buffer
The latest logged errors are stored in the NVM, in an Error
Code Buffer.
The Error Code Buffer contains all the errors that were
detected since the last time it was cleared. It is filled from left to
right, so each new error will enter at the left and preceding
errors will shift one position to the right.
The Error Codes can be displayed on screen via the Service
Alignment Menu (not via CSM) or read from the Blinking LED.
When an error occurs, it is added to the list of errors, provided
the list is not full. When an error occurs and the error buffer is
full, then the new error is not added and the error buffer stays
intact (history is maintained).
Any occasional error will be removed from the list after more
than 50 hours of operation, this to prevent that it stays
permanently in the list.
Multiple errors (that occur within a short period), most probably,
are related to each other.
• In case there are no errors, then the LED should not blink
at all in CSM or SAM and no spacer should be displayed.
• For board level repair (home repair) there is a simple
blinking LED procedure, the LAYER 1 errors, besides the
existing LAYER 2 errors (refer to
Overview):
– LAYER 1 errors are one digit errors, displayed in CSM.
– LAYER 2 errors are two digit errors, displayed in SAM.
• In protection mode, from consumer mode: LAYER 1.
• Fatal errors, if I²C bus is blocked and the set reboots, CSM
and SAM are not selectable.
– From consumer mode: LAYER 1.
• In CSM mode.
– When entering CSM: error(s) LAYER 1 will be
displayed via blinking LED.
Attention: Pressing any button on the remote control
during Blinking LED procedure will stop the blinking
LED sequence. You can re-enable the Blinking LED by
exiting and re-entering CSM.
2016-May-09
Service Modes, Error Codes, and Fault Finding

5-4 Error Code

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• In SAM mode.
– When SAM is entered via Remote Control, then
LAYER 2 is displayed via blinking LED.
Basically there are three kinds of errors:
• Errors detected by Standby software leading to
protection
These errors always lead to protection and automatically
start the blinking LED sequence LAYER 1 error. Refer to
section 5.6 Blinking LED
• Errors detected by Standby software not leading to
protection
In this case the front LED starts blinking the corresponding
error (e.g. LAYER 1 error = 2, LAYER 2 error = 18 or 53).
Also refer to 5.5.4 Error
Note: It can take several minutes before the LED starts
blinking.
• Errors detected by main software (SOC)
In this case the error is logged into the Error Code Buffer,
which can be read from the blinking front LED (LAYER 1-2)
or on screen when in SAM.
5.5.2 How to Read Error Buffer
Use one of the following methods:
• On screen via the SAM (provided a picture is visible).
Examples
– 00 00 00 00 00: No errors detected.
– 23 00 00 00 00: Error code 23 is the last and only
detected error.
– 37 23 00 00 00: Error code 23 was first detected and
error code 37 is the last detected error.
Note: No protection errors can be logged in the error
buffer.
• Via the Blinking LED procedure.
5.5.3 How to Clear Error Buffer
Use one of the following methods:
• By activation of the "RESET ERROR BUFFER" command
in the SAM menu.
• If the content of the error buffer has not changed for 50+
hours, it resets automatically.
5.5.4 Error Buffer
In case of non-intermittent faults, clear the error buffer before
starting to repair (before clearing the buffer, write down the
content, as this history can give significant information). This to
ensure that old error codes are no longer present.
If possible, check the entire contents of the error buffer. In
some situations, an error code is only the result of another error
code and not the actual cause.(e.g. a fault in the protection
detection circuitry can also lead to a protection)
There are several mechanisms of error detection:
• Via error bits in the status registers of ICs.
• Via polling on I/O pins going to the standby processor.
• Via sensing of analog values on the standby processor or
the SOC.
• Via a "not acknowledge" of an I
Note
In case of certain errors it takes several minutes before the LED
starts blinking or before the errors are logged.
So if you have problems wait two minutes from start-up before
checking if the front LED is blinking or if an error is logged.
Procedure.
Buffer.
2
C communication.