Service Modes, Error Codes, and Fault Finding
5.
Table 5-2 Error code overview
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 section “
5.8 Fault Finding and Repair Tips
,
). It’s shown that the loggings which are generated
by the main software keep continuing. In this case
diagnose has to be done via ComPair.
•
Error 13 (I
2
C bus 3 blocked)
. Current situation: 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.
•
Error 15 (PNX8543,PNX51XX doesn’t boot)
. Indicates
that the main processor/PNX51XX was not able to read his
bootscript. This error will point to a hardware problem
around the PNX8543 (supplies not OK, PNX 8543
completely dead, I
2
C link between PNX and Stand-by
Processor broken, etc...). When error 15 occurs it is also
possible that I
2
C1 bus is blocked (NVM). I
2
C1 can be
indicated in the schematics as follows: SCL-UP-MIPS,
SDA-UP-MIPS, SCL-1, SDA-1, SCL-2 or SDA-2.
Other root causes for this error can be due to hardware
problems from the NVM PNX51XX, DDR’s and the
bootscript reading from the PNX51XX.
•
Error 16 (12V)
. This voltage is made in the power supply
and results in protection (LAYER 1 error = 3) in case of
absence. When SDM is activated we see blinking LED
LAYER 2 error = 16.
•
Error 17 (Invertor or Display Supply)
. Here the status of
the “Power OK” is checked by software, no protection will
occur during failure of the invertor or display supply (no
picture), only error logging. Error LAYER 1 = 3 in CSM, in
SDM this gives LAYER 2 error = 17.
•
Error 18 (1V2-3V3-5V too low)
. All these supplies are
generated by the DC/DC supply on the SSB. If one of these
supplies is too low, protection occurs and blinking LED
LAYER 1 error = 2 will be displayed automatically. In SDM
this gives LAYER 2 error = 18.
•
Error 21 (PNX 51XX)
. When there is no I
2
C
communication towards the PNX51XX, the TV set will start
rebooting and display LAYER 1 error = 2. Disconnect the
mains cord now and start up the TV set with the solder path
(SDM) short to ground during start-up to activate the
LAYER 2 error blinking. Error “21” will be logged and
displayed via the blinking LED procedure after a few
moments from start-up. Remark : the rebooting can be
recognized via a ComPair interface and Hyperterminal (for
Hyperterminal settings, see section “
”). It is shown that the loggings
which are generated by the main software keep continuing.
Check in the logging for keywords like e.g. “Device
error 21”.
•
Error 23 (HDMI)
. When there is no I
2
C communication
towards the HDMI mux after start-up, LAYER 2 error = 23
will be logged and displayed via the blinking LED
procedure if SDM is switched on. It should be noted that in
case a new spare EDID MUX device is used for repair, the
initial default address must be changed from “C0” to “CE”,
to be done via ComPair.
•
Error 24 (I
2
C switch)
. When there is no I
2
C
communication towards the I
2
C switch, LAYER 2
error = 24 will be logged and displayed via the blinking LED
procedure when SDM is switched on. Remark : this only
works for TV sets with an I
2
C controlled screen included.
•
Error 25 (Boot-NVM PNX51XX)
. Same behaviour as
described in “Error 21 (PNX51XX)”.
•
Error 27 (Micronas IF)
. When there is no I
2
C
communication towards the multi standard demodulator,
LAYER 2 error = 27 will be logged and displayed via the
blinking LED procedure if SDM is switched on.
•
Error 28 (ARM ambilight)
. When there is no I
2
C
communication towards the ARM processor, LAYER 2
error = 28 will be logged and displayed via the blinking LED
procedure if SDM is switched on.
•
Error 29 (FPGA local contrast)
. When there is no I
2
C
communication towards this FPGA, LAYER 2 error = 29
will be logged and displayed via the blinking LED
procedure if SDM is activated.
Description
Layer 1 Layer 2
Monitored
by
Error/
Prot
Error Buffer/
Blinking LED Device
Defective Board
I
2
C3
2
13
MIPS
E
BL / EB
SSB
SSB
I
2
C2
2
14
MIPS
E
BL / EB
SSB/Display
SSB/display
PNX doesn’t boot (HW cause)
PNX 51XX doesn’t boot
2
15
Stby µP
P
BL
PNX8543/PNX51XX
I
2
C blocked
SSB
12V
3
16
Stby µP
P
BL
/
Supply
Inverter or display supply
3
17
MIPS
E
EB
/
IPB
1V2, 3V3, 5V to low
2
18
Stby µP
P
BL
/
SSB
Temp protection
3
12
MIPS
E
EB
/
Display
PNX 51XX
2
21
MIPS
E
EB
PNX51XX
SSB
HDMI mux
2
23
MIPS
E
EB
TDA9996
SSB
I
2
C switch
2
24
MIPS
E
EB
PCA9540
SSB
Boot-NVM PNX51XX
2
25
MIPS
E
EB
STM24C08
SSB
Multi Standard demodulator
(Micronas IF)
2
27
MIPS
E
EB
DRX3616K
DRX3626K
SSB
ARM (ambilight)
8
28
MIPS
E
EB
NXP LPC2103
AL module or DC/DC
FPGA (Local contrast)
2
29
MIPS
E
EB
Altera
SSB
Tuner
2
34
MIPS
E
EB
UV1783S/HD1816
SSB
Fan I2C expander
7
41
MIPS
E
EB
PCA9533
FAN module
T° sensor
7
42
MIPS
E
EB
LM 75
T° sensor
FAN 1
7
43
MIPS
E
EB
FAN
FAN 2
7
44
MIPS
E
EB
FAN
Main NVM
2
/
MIPS
E
X
STM24C128
SSB
PNX doesn’t boot (SW cause) 2
53
Stby µP
E
BL
PNX8543
SSB
Display
5
64
MIPS
E
BL / EB
Altera
Display
FPGA LED dimming 2D
2
65
MIPS
E
EB
Altera
SSB
