Philips 32PF9968/10 Service Manual page 30

EN 30 5. PB52.1HU 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.
Table 5-2 Error code overview
Error Description Error/
Prot
2
3 I C3 E
5 PNX85xx does E
not boot (HW
cause)
6 5V, 12V supply P
8 1V2, 1V4, 2V5, P
3V3 supply
9 Supply fault P
2
11 I C-MUX1 E
2
12 I C-MUX2 E
22 PNX5050 E
23 HDMI mux E
2
24 I C switch E
26 Master IF E
28 MOP (Ambilight E
MOP on DFI
1)
panel)
34 Tuner E
37 Channel decoder E
38 MPEG4 E
46 Pacific3 E
53 PNX85xx does E
not boot (SW
cause)
63 Power OK E/P
65 DFI (EPLD on E
1)
DFI panel)
75 iBoard n.a.
76 Pro:Idiom n.a.
77 DMSD n.a.
Note
1) Where applicable.
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). At the time of release of this
manual, this error was not working as expected (error 3 is
logged and can be read out). 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 (e.g. read out the NVM content). Instead of
error "3" it is possible you will see error "2" in the error
buffer.
All manuals and user guides at all-guides.com
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 PCA9540 Error logged.
MIPS PCA9540 Error logged.
MIPS PNX5050 Error logged.
MIPS AD8190/ Error logged.
AD8191
MIPS PCA9540 Error logged.
MIPS TDA9898/ Error logged.
9897/9890
MIPS EP2CXXF4 Error logged.
84C7N
MIPS TD1716 Error logged.
MIPS TDA10060/ Error logged.
TDA10048
MIPS STi71xx Error logged.
MIPS T6TF4 Error blinking + Error
logged.
Stby P PNX85xx Error blinking.
MIPS / Error logged in case of
a PDP set. Protection
in case of an LCD set.
MIPS / Error blinking + Error
logged.
n.a. n.a. n.a.
n.a. n.a. n.a.
n.a. n.a. n.a.
• Error 5 (PNX85xx doesn't boot). Indicates that the main
processor was not able to read his bootscript. This error will
point to a hardware problem around the PNX85xx (supplies
not OK, PNX 8535 completely dead, I
and Stand-by Processor broken, etc...). When error 5
occurs it is also possible that I
2
I C2 can be indicated in the schematics as follows: SCL-
UP-MIPS, SDA-UP-MIPS, SCL-SLAVE, SDA-SLAVE,
SCL-2 or SDA-2.
2
• Error 11 (I C MUX1). Indicates a blocked (short circuited)
2
I C-MUX1 bus. At the time of release of this manual, this
error was not working as expected. Current situation: when
this error occurs the TV will constantly reboot due to the
blocked bus. The best way for further diagnosis, is to use
ComPair (e.g. read out the NVM content).
2
• Error 12 (I C MUX2). Indicates a blocked (short circuited)
2
I C-MUX2 bus. At the time of release of this manual, this
error was not working as expected. Current situation: when
this error occurs the TV will constantly reboot due to the
blocked bus. The best way for further diagnosis, is to use
ComPair (e.g. read out the NVM content).
2
• Error 24 (I C switch). As a side effect of error 24 it is
possible that error 47(no existing error) will also be logged.
• Error 28 (DFI Ambilight MOP). It can take up to 2 minutes
or more before this error is logged. So if you suspect that
this MOP is defective: clear the error buffer, restart the TV
and wait for about 2 minutes before checking the error
buffer.
• 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 46 (Pacific 3). When there is an actual problem with
or around the Pacific during start-up, you will have no
picture and error 46 will be blinked via the blinking LED
procedure. For further diagnosis you can always dump the
CSM content on USB stick (see CSM) or use ComPair.
• 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.
• Error 63 (POWER OK). When this error occurs, it means
that the POWER-OK line did not became "high". This error
is only applicable for TV's with an LCD display. For PDP
displays there will be no protection during a POWER-OK
line failure, but error 63 will be logged in the error buffer.
Caution: in case a PDP TV ends up into power-ok
protection, it can indicate that the display option code is set
to "LCD". To change the display option code to "PDP" you
need to activate SDM via the service pads (see figure
"Service mode pads"). Then change the display option
code blindly via a standard RC: key in the code "062598"
directly followed by the "MENU" button and "XXX" (where
XXX is the 3 digit decimal display option code as
mentioned in figure "Display option code overview").
• Error 65 (DFI EPLD error). When this error occurs it
means that there is a problem with the I
towards the EPLD (picture processing EPLD, not the
Ambilight EPLD) on the DFI panel.
• Error 75 - 77. These errors are introduced specifically for
the iTV part of these sets.
2
C link between PNX
2
C2 bus is blocked (NVM).
2
C communication