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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").
•
Errors detected by VIPER that lead to protection. In this
case the TV will go to protection and the front LED will blink
at 3 Hz. Further diagnosis via service modes is not possible
here (see also paragraph "Error Codes" -> "Error Buffer" -
> "Extra Info").
•
Errors detected by VIPER that do not lead to
protection. In this case the error can be read out via
ComPair, via blinking LED method, or in case you have
picture, via SAM.
5.4.2
How to Read the Error Buffer
Use one of the following methods:
•
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.
Table 5-3 Error code overview
Error
Description
1
I2C1
2
I2C2
3
I2C3 (connect SDA line to GND)
4
I2C4
5
Viper - Severe HW problem
6
5V supply
7
8V6 supply
8
1.2V DC/DC
9
2.5V DC/DC
11
3.3V DC/DC
12
12V supply
13
Audio supply
14
Class D amplifiers
16
MPIF1 main supply (MSUP)
17
MPIF1 audio supply (ASUP)
18
MPIF1 ref freq (ROK)
21
MPIF2 main supply (MSUP)
22
MPIF2 audio supply (ASUP)
23
MPIF2 ref freq (ROK)
25
Supply fault
26
Power Dip detected
27
Phoenix
28
MOP
28
JOP
29
AVIP1
31
AVIP2
32
MPIF1
33
MPIF2
34
Tuner1
35
Tuner2
36
OFDM
37
Channel decoder
38
I/O expander audio
39
POD Interface
41
Channel decoder
42
audio source select matrix
43
Hi Rate Front End
44
main NVM
45
Columbus 1
46
Pacific 3
Service Modes, Error Codes, and Fault Finding
Monitored by
Error/Prot
Viper
P
Viper
P
St-by µP
P
Viper
P
St-by µP
P
St-by µP
P
St-by µP
P
St-by µP
P
St-by µP
P
St-by µP
P
St-by µP
P
St-by µP
P
St-by µP
P
Viper
E
Viper
E
Viper
E
Viper
E
Viper
E
Viper
E
St-by µP
P
St-by µP
E
Viper
E
Viper
P
Viper
P
Viper
E
Viper
E
Viper
E
Viper
E
Viper
E
Viper
E
Viper
E
Viper
E
Viper
E
Viper
E
Viper
E
Viper
E
Viper
E
Viper
E
Viper
E
Viper
E
EBJ1.0U
5.4.3
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.
5.4.4
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.
•
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.
Device
Defective Module
i2c1_blocked
i2c2_blocked
i2c3_blocked
i2c4_blocked
PNX8550
control
5v_supply
8v_supply
1v2_supply
2v5_supply
3v3_supply
12v_supply
audio_supply
class_d_supply
KN10241C
if_io
KN10241C
if_io
KN10241C
if_io
KN10241C
if_io2
KN10241C
if_io2
KN10241C
if_io2
dc_dc_supply
[2]
PNX2015B
hd_subsystem
EP1C6
ouput_processor
EP1C6
ouput_processor
PNX3000
av_input_processor1
PNX3000
av_input_processor2
KN10241C
anl_fr_1
KN10241C
anl_fr_2
UV1318/TEDH700A
tuner1
UV1318/TEDH700A
tuner2
TDA10046
digital_if
NXT2003
Channel decoder 1
PCA9555
audio_io_expander
STV701
POD Interface
NXT2004
Channel decoder 2
TEA6422
audio_source_select
TDA8751
hdmi
M24C32
nvm
T6TU5XB-0001
comb_filter
t.b.d.
pq_fpga
5.
EN 21
2
C communication
schematics ID
B05E/B05A
B01B/B05A
B04E
B04E
B04E
B04E
B08A
B03D
B03B
B01A
B04E
B04E
B03B
B02B
B02A
B07B
B05E
B04E
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