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EN 26
5.
Q522.3E LA
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 PNX85xx.
•
Via a "not acknowledge" of an I
Take notice that some errors need more than 90 seconds
before they start blinking or before they will be logged. So in
case of problems wait 2 minutes from start-up onwards, and
then check if the front LED is blinking or if an error is logged.
Error Description
Error/
Prot
3
I2C3
E
5
PNX85xx does not
E
boot (HW cause)
6
5V, 12V supply
P
8
1V2, 1V4, 2V5, 3V3
P
supply
9
Supply fault
P
23
HDMI mux
E
26
Master IF
E
34
Tuner
E
37
Channel decoder
E
53
PNX85xx does not
E
boot (SW cause)
Extra Info
•
Rebooting. When a TV is constantly rebooting due to
internal problems, most of the time no errors will be logged
or blinked. This rebooting can be recognized via a ComPair
interface and Hyperterminal (for Hyperterminal settings,
see paragraph "Stand-by Software Upgrade"). You will see
that the loggings which are generated by the main software
keep continuing. In this case (rebooting) diagnose has to
be done via ComPair.
2
•
Error 3 (I
C bus 3 blocked). When this error occurs, the
TV will constantly reboot due to the blocked bus. The best
way for further diagnosis here, is to use ComPair (e.g. read
out the NVM content). Instead of error "3" it is possible you
will see error "2" in the error buffer.
•
Error 5 (PNX85xx doesn't boot). When this error occurs,
the TV main processor was not able to read his boot script.
This error will point to a hardware problem around the
PNX85xx (supplies not OK, PNX 85xx completely dead,
I2C link between PNX and Stand-by Processor broken,
etc...). When error 5 occurs it is also possible that I2C2 bus
is blocked (NVM). I2C2 can be indicated in the schematics
as follows: SCLUP-MIPS, SDA-UP-MIPS, SCL-SLAVE,
SDA-SLAVE, SCL-2 or SDA-2.
•
Error 5 (PNX85xx doesn't boot). When this error occurs,
the TV main processor was not able to read his boot script.
This error will point to a hardware problem around the
PNX85xx (supplies not OK, PNX 85xx completely dead,
I2C link between PNX and Stand-by Processor broken,
etc...). When error 5 occurs it is also possible that I2C2 bus
is blocked (NVM). I2C2 can be indicated in the schematics
as follows: SCLUP-MIPS, SDA-UP-MIPS, SCL-SLAVE,
SDA-SLAVE, SCL-2 or SDA-2.
•
Error 6 (5V, 12V supply). When this error occurs, the TV
set shutdown in protection mode and follow with the Error
blinking.This error will point to a hardware problem around
the DC/DC (B02C) probably 5V supply is under voltage
cause the "PROT-DC" (B02C) line activated. Or another
possibility is the 12V supply under voltage cause the
"DETECT2" (B04A) line activated.
•
Error 8 (1V2, 3V3 supply). When this error occurs, the TV
set shutdown in protection mode and follow with the Error
blinking. This error will point to a hardware problem around
Service Modes, Error Codes, and Fault Finding
2
C communication.
Detected
Device
Result
by
MIPS
PNX85xx
Error logged.
Stby P
PNX85xx
Error blinking.
Stby P
/
Protection
Error blinking.
Stby P
/
Protection
Error blinking.
Stby P
/
Protection
Error blinking.
MIPS
AD8190/8191/
Error logged.
8197
MIPS
TDA9898/9897/
Error logged.
9890
MIPS
TD1716
Error logged.
MIPS
TDA10060/
Error logged.
TDA10048
Stby P
PNX85xx
Error blinking.
the DC/DC +3V3-STANDBY_+1V2-STANDBY (B02B)
probably 1V2 STANDBY and 3V3 STANDBY under
voltage cause the "DETECT1" (B04A) line activated.
•
Error 9 (Supply fault). When this error occurs, the TV set
shutdown in protection mode and follow with the Error
blinking. This error will point to a hardware problem around
the DC/DC 3V3_1V2 (B02A) probably the CLASS D
amplifier output cause the "SUPPLY FAULT" (B10A) line
activated.
•
Error 23 (HDMI MUX). When this error occurs it means
that there is a problem with the I2C communication towards
the HDMI MUX IC AD8197. This error will point to a
hardware problem around the digital IO HDMI MUX (B09).
It is possible you will see error "23" logged in the error
buffer. The best way for further diagnosis, is to use
ComPair (e.g. read out the NVM content).
•
Error 26 (Master IF). When this error occurs it means that
there is a problem with the I2C communication towards the
MASTER IF TDA9898. it is probably will be no picture and
+
sound from tuner input. This error will point to a hardware
problem around the Main Tuner (B03A) IF processing IC. It
+
is possible you will see error "26" logged in the error buffer.
+
•
Error 34 (Tuner). When this error occurs it means that
there is a problem with the I2C communication towards the
Tuner 1716. There probably will be no picture and sound
from tuner input.
•
This error will point to a hardware problem around the Main
Tuner (B03A). As a side effect of error 34, it is possible that
error 24 (no existing error) is also logged.
•
Error 37 (Channel decoder). When this error occurs,
there probably will be no picture and sound from tuner
input. As a side effect of error 37 it is possible that error 4
(no existing error) is also logged.
•
Error 53. This error will indicate that the PNX85xx has read
his bootscript (if this would have failed, error 5 would blink)
but initialization was never completed because of hardware
problems (NAND flash, ...) or software initialization
problems. Possible cause could be that there is no valid
software loaded (try to upgrade to the latest main software
version). Note that it can take up to 2 minutes before the TV
starts blinking error 53.
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