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EN 34
5.
BJ3.1E LA
5.5
Error Codes
5.5.1
Introduction
The error code buffer contains all detected errors since the last
time the buffer was erased. The buffer is written from left to
right, new errors are logged at the left side, and all other errors
shift one position to the right.
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), except when the error is a
protection error.
To prevent that an occasional error stays in the list forever, the
error is removed from the list after more than 50 hrs. of
operation.
When multiple errors occur (errors occurred within a short time
span), there is a high probability that there is some relation
between them.
Basically there are three kinds of errors:
•
Errors detected by the Stand-by Processor. These
errors will always lead to protection and an automatic start
of the blinking LED for the concerned error (see paragraph
"The Blinking LED Procedure"). In these cases SDM can
be used to start up (see chapter "Stepwise Start-up"). Note
that it can take up to 90 seconds before the TV goes to
protection and starts blinking the error (e.g. error 53)
•
Errors detected by VIPER that lead to protection. In this
case the TV will go to protection and the front LED should
also blink the concerned error. Depending on the software
version it is possible that this mechanism does not work.
See also paragraph "Error Codes" -> "Error Buffer" ->
"Extra Info".
•
Errors detected by VIPER that do not lead to
protection. In this case the error will be logged into the
error buffer and can be read out via ComPair, via blinking
LED method, or in case you have picture, via SAM.
5.5.2
How to Read the Error Buffer
Use one of the following methods:
Table 5-3 Error code overview
Error
Description
1
2
I
C1
2
2
I
C2
3
2
I
C3
4
2
I
C4
5
VIPER does not boot
6
5V supply
7
8V6 supply
8
1.2V DC/DC
11
3.3V DC/DC
12
12V supply
14
Audio
18
MPIF1 ref. freq.
25
Supply fault
27
PNX2015 HD subsystem part E
29
AVIP 1
31
AVIP 2
32
MPIF1
34
Tuner1
36
OFDM (channel decoder)
39
POD/Common Interface
43
Hi Rate Front End
44
NVM
45
Columbus 1
46
Pacific 3
53
VIPER
63
Power OK
64
Display
Service Modes, Error Codes, and Fault Finding
Error/Prot
Detected by
Device
P/E
VIPER
/
E
VIPER
/
P
Stby µP
/
E
VIPER
/
P
Stby µP
PNX8550
P
Stby µP
/
P
Stby µP
/
P
Stby µP
/
P
Stby µP
/
P
Stby µP
/
P
Stby µP
/
E
VIPER
PNX3000
P
Stby µP
n.a.
VIPER
/
E
VIPER
/
E
VIPER
/
E
VIPER
PNX3000
E
VIPER
/
E
VIPER
TDA10046
E
VIPER
STV0701
E
VIPER
TDA9975
P
Stby µP
/
E
VIPER
PNX2015
E
VIPER
/
P
Stby µP
PNX8550
P
VIPER
/
E
VIPER
/
•
On screen via the SAM (only if you have a picture). E.g.:
–
00 00 00 00 00: No errors detected
–
06 00 00 00 00: Error code 6 is the last and only
detected error
–
09 06 00 00 00: Error code 6 was first detected and
error code 9 is the last detected error
•
Via the blinking LED procedure (when you have no
picture). See next paragraph.
•
Via ComPair.
5.5.3
How to Clear the Error Buffer
Use one of the following methods:
•
By activation of the "RESET ERROR BUFFER" command
in the SAM menu.
•
With a normal RC, key in sequence "MUTE" followed by
"062599" and "OK".
•
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
you begin the repair (before clearing the buffer, write down the
content, as this history can give you 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 stand-by processor.
•
Via sensing of analogue values on the stand-by processor
or the Viper.
•
Via a "not acknowledge" of an I
Take notice that some errors need more than 90 seconds
before they start blinking. So in case of problems, wait 2
minutes from start-up onwards, and then check if the front LED
is blinking.
Defective module
Result
2
Protection + Error blinking / Error logged
I
C1_blocked
2
Error logged
I
C2_blocked
/
Protection + Error blinking
2
Error logged
I
C4_blocked
/
Protection + Error blinking
/
Protection + Error blinking
/
Protection + Error blinking
/
Protection + Error blinking
/
Protection + Error blinking
/
Protection + Error blinking
/
Protection + Error blinking
IF I/O
Error logged
/
Protection + Error blinking
/
see extra info
/
see extra info
/
see extra info
analogue 1 front end 1
Error logged
Tuner 1
Error logged
/
Error logged
/
Error logged
HDMI
Error logged
/
see extra info
Comb filter
Error logged
/
TV to standby + Error logged
/
Protection + Error blinking
/
Protection + Error blinking (see extra info)
/
Error logged
2
C communication.
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