service modes, error codes and fault finding

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SERVICE MODES, ERROR CODES AND FAULT FINDING
5. Service Modes, Error Codes and Fault Finding
Index of this chapter:
5.1 Test Points
5.2 Service Modes
5.3 Stepwise Start-up
5.4 Service Tools
5.5 Error Codes
5.6 The Blinking LED Procedure
5.7 Protections
5.8 Fault Finding and Repair Tips
5.9 Software Upgrading
5.1
•
How to Activate SDM
For this chassis there are two kinds of SDM: an analogue SDM
and a digital SDM. Tuning will happen according Table 5-1.
• Analogue SDM: use the standard RC-transmitter and key
in the code “062596”, directly followed by the “MENU” (or
“HOME”) button.
Note: It is possible that, together with the SDM, the main
menu will appear. To switch it “off”, push the “MENU” (or
"HOME") button again.
Analogue SDM can also be activated by grounding for a
moment the solder path on the SSB, with the indication
“SDM” (see Service mode pad).
• Digital SDM: use the standard RC-transmitter and key in
the code “062593”, directly followed by the “MENU” (or
"HOME") button.
Note: It is possible that, together with the SDM, the main
menu will appear. To switch it “off”, push the “MENU” (or
"HOME") button again.
Test Points
As most signals are digital, it will be difficult to measure waveforms with a standard oscilloscope. However, several key ICs
are capable of generating test patterns.
Perform measurements under the following conditions:
• Service Default Mode.
• Video: Colour bar signal.
• Audio: 3 kHz left, 1 kHz right.
5.2
All service-unfriendly modes (if present) are disabled, like:
– (Sleep) timer.
– Child/parental lock.
– Picture mute (blue mute or black mute).
– Automatic volume levelling (AVL).
– Skip/blank of non-favourite pre-sets.
Service Modes
Service Default mode (SDM) and Service Alignment Mode
(SAM) offers several features for the service technician, while
the Customer Service Mode (CSM) is used for communication
between the call centre and the customer.
SDM
5.2.1
Service Default Mode (SDM)
Purpose
• To create a pre-defined setting, to get the same
measurement results as given in this manual.
• To override SW protections detected by stand-by
processor and make the TV start up to the step just before
protection (a sort of automatic stepwise start-up). See
section “5.3 Stepwise Start-up”.
• To start the blinking LED procedure where only LAYER 2
errors are displayed. (see also section “5.5 Error Codes”).
19100_057_110217.eps
110217
Figure 5-1 Service mode pad
After activating this mode, “SDM” will appear in the upper right
corner of the screen (when a picture is available).
Specifications
How to Navigate
When the “MENU” (or “HOME”) button is pressed on the RC
transmitter, the TV set will toggle between the SDM and the
normal user menu.
Table 5-1 SDM default settings
Region
Freq. (MHz)
Default
system
Europe, AP(PAL/Multi)
475.25
PAL B/G
Europe, AP DVB-T
DVB-T
546.00 PID
Video: 0B 06 PID
PCR: 0B 06 PID
Audio: 0B 07
•
•
All picture settings at 50% (brightness, colour, contrast).
Sound volume at 25%.
How to Exit SDM
Use one of the following methods:
• Switch the set to STAND-BY via the RC-transmitter.
• Via a standard customer RC-transmitter: key in “00”sequence.
5.2.2
Service Alignment Mode (SAM)
Purpose
• To perform (software) alignments.
• To change option settings.
• To easily identify the used software version.
• To view operation hours.
• To display (or clear) the error code buffer.
How to Activate SAM
Via a standard RC transmitter: Key in the code “062596”
directly followed by the “INFO” or “OK” button. After activating
SAM with this method a service warning will appear on the
screen, continue by pressing the “OK” button on the RC.
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Service Modes, Error Codes, and Fault Finding (continued)
Contents of SAM
• Hardware Info.
– A. SW Version. Displays the software version of the
main software (example: Q555X-1.2.3.4
S5551_0.9.21.0=
AAAAB_X.Y.W.Z).
• AAAA= the chassis name.
• B= the SW branch version. This is a sequential
number (this is no longer the region indication, as
the software is now multi-region).
• X.Y.W.Z= the software version, where X is the
main version number (different numbers are not
compatible with one another) and Y.W.Z is the sub
version number (a higher number is always
compatible with a lower number).
– B. STBY PROC Version. Displays the software
version of the stand-by processor.
–
•
•
•
•
•
•
•
How to Navigate
In SAM, the menu items can be selected with the
“CURSOR-DOWN/UP/LEFT/RIGHT” knob of the RC
transmitter.
•
Store - go right. All options and alignments are stored
when pressing “cursor right” (or the “OK” button) and then
the “OK”-button.
Operation hours display. Displays the accumulated total
of operation hours of the screen itself. In case of a display
replacement, reset to “0” or to the consumed operation
hours of the spare display.
SW Maintenance.
– SW Events. In case of specific software problems, the
development department can ask for this info.
– HW Events. In case of specific software problems, the
development department can ask for this info :
- Event 26: refers to a power dip, this is logged after
the TV set reboots due to a power dip.
- Event 17: refers to the power OK status, sensed even
before the 3 x retry to generate the error code.
Test settings. For development purposes only.
Development file versions. Not useful for Service
purposes, this information is only used by the development
department.
Upload to USB. To upload several settings from the TV to
an USB stick, which is connected to the SSB. The items are
“Channel list”, “Personal settings”, “Option codes”,
“Alignments”, “Identification data” (includes the set type
and prod code + all 12NC like SSB, display, boards),
“History list”. The “All” item supports to upload all several
items at once.
First a directory “repair\” has to be created in the root
of the USB stick.
To upload the settings, select each item separately, press
“cursor right” (or the “OK” button), confirm with “OK” and
wait until the message “Done” appears. In case the
download to the USB stick was not successful, “Failure” will
be displayed. In this case, check if the USB stick is
connected properly and if the directory “repair” is present in
the root of the USB stick. Now the settings are stored onto
the USB stick and can be used to download into another TV
or other SSB. Uploading is of course only possible if the
software is running and preferably a picture is available.
This method is created to be able to save the customer’s
TV settings and to store them into another SSB.
Download from USB. To download several settings from
the USB stick to the TV, same way of working needs to be
followed as described in “Upload to USB”. To make sure
that the download of the channel list from USB to the TV is
executed properly, it is necessary to restart the TV and
tune to a valid preset if necessary. The “All” item supports
to download all several items at once.
•
•
C. Production Code. Displays the production code
of the TV, this is the serial number as printed on the
back of the TV set. Note that if an NVM is replaced or
is initialized after corruption, this production code has
to be re-written to NVM.
Operation Hours. Displays the accumulated total of
operation hours (not the stand-by hours). Every time the
TV is switched “on/off”, 0.5 hours is added to this number.
Errors (followed by maximum 10 errors). The most recent
error is displayed at the upper left (for an error explanation
see section “5.5 Error Codes”).
Reset Error Buffer. When “cursor right” (or “OK” button)
pressed here, followed by the “OK” button, the error buffer
is reset.
Alignments. This will activate the “ALIGNMENTS” submenu. See Chapter 6. Alignments.
Dealer Options. Extra features for the dealers.
Options. Extra features for Service. For more info
regarding option codes, see chapter 6. Alignments.
Note that if the option code numbers are changed, these
have to be confirmed with pressing the “OK” button before
the options are stored, otherwise changes will be lost.
Initialize NVM. The moment the processor recognizes a
corrupted NVM, the “initialize NVM” line will be highlighted.
Now, two things can be done (dependent of the service
instructions at that moment):
– Save the content of the NVM for development analysis,
before initializing. This will give the Service department
an extra possibility for diagnosis (e.g. when Development asks for this).
–
•
•
•
•
Initialize the NVM.
Note: When the NVM is corrupted, or replaced, there is a high
possibility that no picture appears because the display code is
not correct. So, before initializing the NVM via the SAM, a picture is necessary and therefore the correct display option has
to be entered. Refer to Chapter 6. Alignments for details. To
adapt this option, it’s advised to use a method via a standard
RC (described below).
•
Changing the display option via a standard RC: Key in the
code “062598” directly followed by the “MENU” (or “HOME”)
button and “XXX” (where XXX is the 3 digit decimal display
code as mentioned on the below table).
•
Table 5-1-2 Display options (More details on Table 6-6)
Size
Display option
Panel (Y)
Display option
New VE Panel (F)
32”
327
374
40”
329
366
46”
330
375
NVM editor. For NET TV the set “type number” must
be entered correctly.Also the production code (serial
number) can be entered here via the RC-transmitter.
Correct data can be found on the side/rear sticker.
“CURSOR UP/DOWN” key on the RC-transmitter. The
selected item will be highlighted. When not all menu items
Make sure to key in all three digits, also the leading zero’s. If
the above action is successful, the front LED will go out as an
indication that the RC sequence was correct. After the display
option is changed in the NVM, the TV will go to the Stand-by
mode. If the NVM was corrupted or empty before this action, it
will be initialized first (loaded with default values). This initializing can take up to 20 seconds.
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Service Modes, Error Codes, and Fault Finding (continued)
•
•
Contents of CSM
The contents are reduced to 3 pages: General, Software
versions and Quality items. The group names itself are not
shown anywhere in the CSM menu.
fit on the screen, move the “CURSOR UP/DOWN” key to
display the next/previous menu items.
With the “CURSOR LEFT/RIGHT” keys, it is possible to:
– (De) activate the selected menu item.
– (De) activate the selected sub menu.
With the “OK” key, it is possible to activate the selected
action.
General
Set Type. This information is very helpful for a helpdesk/
workshop as reference for further diagnosis. In this way, it
is not necessary for the customer to look at the rear of the
TV-set. Note that if an NVM is replaced or is initialized after
corruption, this set type has to be re-written to NVM. The
update can be done via the NVM editor available in SAM.
•
How to Exit SAM
Use one of the following methods:
• Switch the TV set to STAND-BY via the RC-transmitter.
• Via a standard RC-transmitter, key in “00” sequence, or
select the “BACK” key.
5.2.3
•
Production Code. Displays the production code (the serial
number) of the TV. Note that if an NVM is replaced or is
initialized after corruption, this production code has to be
re-written to NVM. The update can be done via the NVM
editor available in SAM.
•
Installed date. Indicates the date of the first installation of
the TV. This date is acquired via time extraction.
Options 1. Gives the option codes of option group 1 as set
in SAM (Service Alignment Mode).
Options 2. Gives the option codes of option group 2 as set
in SAM (Service Alignment Mode).
12NC SSB. Gives an identification of the SSB as stored in
NVM. Note that if an NVM is replaced or is initialized after
corruption, this identification number has to be re-written
to NVM. This identification number is the 12nc number of
the SSB.
12NC display. Shows the 12NC of the display.
12NC supply. Shows the 12NC of the power supply.
12NC 200Hz board. Shows the 12NC of the 200Hz Panel
(when present).
12NC AV PIP. Shows the 12NC of the AV PIP board
(when present).
Customer Service Mode (CSM)
Purpose
When a customer is having problems with his TV-set, he can
call his dealer or the Customer Helpdesk. The service
technician can then ask the customer to activate the CSM, in
order to identify the status of the set. Now, the service
technician can judge the severity of the complaint. In many
cases, he can advise the customer how to solve the problem,
or he can decide if it is necessary to visit the customer.
The CSM is a read only mode; therefore, modifications in this
mode are not possible.
•
•
•
When in this chassis CSM is activated, a test pattern will be
displayed during 5 seconds (1 second Blue, 1 second Green
and 1 second Red, then again 1 second Blue and 1 second
Green). This test pattern is generated by the PNX51X0
(located on the 200Hz board as part of the display). So if this
test pattern is shown, it could be determined that the back end
video chain (PNX51X0 and display) is working.For TV sets
without the PNX51X0 inside, every menu from CSM will be
used as check for the back end chain video.
•
•
•
•
Software versions
• Current main SW. Displays the build-in main software
version. In case of field problems related to software,
software can be upgraded. As this software is consumer
upgradeable, it will also be published on the Internet.
Example: Q55xx1.2.3.4
S5551_0.9.21.0
When CSM is activated and there is a USB stick connected to
the TV set, the software will dump the CSM content to the USB
stick. The file (CSM_model number_serial number.txt) will be
saved in the root of the USB stick. This info can be handy if no
information is displayed.
When in CSM mode (and a USB stick connected), pressing
“OK” will create an extended CSM dump file on the USB stick.
This file (Extended_CSM_model number_serial number.txt)
contains:
• The normal CSM dump information,
• All items (from SAM “load to USB”, but in readable format),
• Operating hours,
• Error codes,
• SW/HW event logs.
•
•
•
•
To have fast feedback from the field, a flashdump can be
requested by development. When in CSM, push the “red”
button and key in serial digits ‘2679’ (same keys to form the
word ‘COPY’ with a cellphone). A file “Dump_model
number_serial number.bin” will be written on the connected
USB device. This can take 1/2 minute, depending on the
quantity of data that needs to be dumped.
Stand-by SW. Displays the build-in stand-by processor
software version. Upgrading this software will be possible
via USB (see section 5.9 Software Upgrading)
STBY_89.167.00
Example: STDBY_83.84.0.0.
e-UM version. Displays the electronic user manual SWversion (12NC version number). Most significant number
here is the last digit.
AV PIP software.
3D dongle software version.
Quality items
• Signal quality. Bad / average /good (not for DVB-S).
• Ethernet MAC address. Displays the MAC address
present in the SSB.
• Wireless MAC address. Displays the wireless MAC
address to support the Wi-Fi functionality.
• BDS key. Indicates if the set is in the BDS status.
• CI module. Displays status if the common interface
module is detected.
• CI + protected service. Yes/No.
• Event counter :
S : 000X 0000(number of software recoveries : SW
EVENT-LOG #(reboots)
S : 0000 000X (number of software events : SW EVENTLOG #(events)
H : 000X 0000(number of hardware errors)
H : 0000 000X (number of hardware events : SW EVENTLOG #(events).
Also when CSM is activated, the LAYER 1 error is displayed via
blinking LED. Only the latest error is displayed (see also
section 5.5 Error Codes).
How to Activate CSM
Key in the code “123654” via the standard RC transmitter.
Note: Activation of the CSM is only possible if there is no (user)
menu on the screen!
How to Navigate
By means of the “CURSOR-DOWN/UP” knob on the RCtransmitter, can be navigated through the menus.
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Service Modes, Error Codes, and Fault Finding (continued)
on XVX-line). It is recommended to measure first the FET
7U0X or others FET’s on shortcircuit before activating SDM via
the service pads.
How to Exit CSM
Press “MENU” (or "HOME") / “Back” key on the RC-transmitter.
5.3
Stepwise Start-up
When the TV is in a protection state due to an error detected by
stand-by software (error blinking is displayed) and SDM is
activated via shortcutting the SDM solder path on the SSB, the
TV starts up until it reaches the situation just before protection.
So, this is a kind of automatic stepwise start-up. In combination
with the start-up diagrams below, you can see which supplies
are present at a certain moment. Caution: in case the start-up
in this mode with a faulty FET 7U0X is done, you can destroy
all IC’s supplied by the +1V8 and +1v1, due to overvoltage (12V
The abbreviations “SP” and “MP” in the figures stand for:
• SP: protection or error detected by the Stand-by
Processor.
• MP: protection or error detected by the MIPS Main
Processor.
Mains
off
Mains
on
- WakeUp requested
- Acquisition needed
- Tact switch pushed
St by
WakeUp
requested
Semi
St by
- stby requested and
no data Acquisition
required
Active
- St by requested
- tact SW pushed
Tact switch
pushed
Hibernate
WakeUp
requested
(SDM)
- Tact switch pushed
- last status is hibernate
after mains ON
GoToProtection
GoToProtection
Protection
18770_250_100216.eps
100402
Figure 5-3 Transition diagram
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Service Modes, Error Codes, and Fault Finding (continued)
Off
Stand by or
Protection
Mains is applied
Standby Supply starts running.
All standby supply voltages become available.
st-by μP resets
If the protection state was left by short circuiting the
SDM pins, detection of a protection condition during
startup will stall the startup. Protection conditions in a
playing set will be ignored. The protection mode will
not be entered.
Initialise I/O pins of the st-by μP:
- Switch reset-AVC LOW (reset state)
- Switch reset-system LOW (reset state)
- Switch reset-Ethernet LOW (reset state)
- Switch reset-USB LOW (reset state)
- Switch reset-DVBs LOW (reset state)
- keep Audio-reset and Audio-Mute-Up HIGH
- Switch Audio-Reset high.
It is low in the standby mode if the standby
mode lasted longer than 10s.
start keyboard scanning, RC detection. Wake up reasons are
off.
Switch ON Platform and display supply by switching
LOW the Standby line.
+12V, +24Vs, AL and Bolt-on power
is switched on, followed by the +1V2 DCDC converter
Detect2 is moved to an interrupt. To be checked if
the detection on interrupt base is feasible or not or if
we should stick to the standard 40ms interval.
Detect2 high received
within 2 seconds?
Yes
12V error:
Layer1: 3
Layer2: 16
No
Enter protection
Enable the DCDC converters
(ENABLE-3V3n LOW)
Wait 50ms
Enable the supply detection algorithm
Set I²C slave address
of Standby μP to (A0h)
Detect EJTAG debug probe
(pulling pin of the probe interface to
ground by inserting EJTAG probe)
An EJTAG probe (e.g. WindPower ICE probe) can be
connected for Linux Kernel debugging purposes.
EJTAG probe
connected ?
Yes
No
No
No
Cold boot?
Yes
Release AVC system reset
Feed warm boot script
Release AVC system reset
Feed cold boot script
Release AVC system reset
Feed initializing boot script
disable alive mechanism
18770_251_100216.eps
100216
Figure 5-4 “Off” to “Semi Stand-by” flowchart (part 1)
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Service Modes, Error Codes, and Fault Finding (continued)
Reset-system is switched HIGH by the
AVC at the end of the bootscript
Reset-system is switched HIGH by the
AVC at the end of the bootscript
AVC releases Reset-Ethernet, Reset-USB and
Reset-DVBs when the end of the AVC bootscript is detected
AVC releases Reset-Ethernet, Reset-USB and
Reset-DVBs when the end of the AVC bootscript is detected
Reset-Audio and Audio-Mute-Up are
switched by MIPS code later on in the
startup process
Reset-Audio and Audio-Mute-Up are
switched by MIPS code later on in the
startup process
No
This cannot be done through the bootscript,
the I/O is on the standby μP
Timing need to be updated if
more mature info is available.
Bootscript ready
in 1250 ms?
No
Yes
Set I²C slave address
of Standby μP to (60h)
RPC start (comm. protocol)
Timing needs to
be updated if more
mature info is
available.
Flash to Ram
image transfer succeeded
within 30s?
No
Code =
Layer1: 2
Layer2: 15
Yes
Switch AVC PNX85500 in
reset (active low)
Code =
Layer1: 2
Layer2: 53
No
SW initialization
succeeded
within 20s?
Wait 10ms
Timing needs to be
updated if more
mature info is
available.
Yes
Enable Alive check mechanism
Disable all supply related protections and
switch off the +3V3 +5V DC/DC converter.
MIPS reads the wake up reason
from standby μP.
Wait until AVC starts to
communicate
Wait 5ms
3-th try?
Startup screen shall only be visible when there is a coldboot to
an active state end situation. The startup screen shall not be
visible when waking up for reboot reasons or waking up to semistandby conditions or waking up to enter Hibernate mode..
Wake up reason
coldboot & not semistandby?
switch off the remaining DC/DC
converters
yes
Switch Standby I/O line high
and wait 4 seconds
The first time after the option turn on of the startup screen or
when the set is virgin, the cfg file is not present and hence
the startup screen will not be shown.
Startup screen cfg file
present?
Yes
yes
Blink Code as
error code
200Hz set?
yes
No
Enter protection
85500 sends out startup screen
85500 sends out startup screen
85500 starts up the display.
200Hz Tcon has started up the
display.
Startup screen visible
85500 requests Lamp on
No
No
To keep this flowchart readable, the exact
display turn on description is not copied
here. Please see the Semi-standby to On
description for the detailed display startup
During the complete display time of the
Startup screen, the preheat condition of
sequence.
100% PWM is valid.
Startup screen visible
Initialize audio
initialize tuner and channel decoders
Initialize source selection
Initialize video processing IC’s
initialize AutoTV by triggering CHS AutoTV Init interface
Initialize Ambilight with Lights off.
Semi-Standby
18770_252_100216.eps
100216
Figure 5-5 “Off” to “Semi Stand-by” flowchart (part 2)
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Service Modes, Error Codes, and Fault Finding (continued)
Constraints taken into account:
- Display may only be started when valid LVDS output clock can be delivered by the AVC.
- To have a reliable operation of the EEFL backlight, the backlight should be driven with a maximum PWM duty
cycle during the first seconds. Only after this first one or two seconds, the PWM may be set to the required output
level (Note that the PWM output should be present before the backlight is switched on). To minimize the artefacts,
the picture should only be unblanked after these first seconds.
Semi Standby
The assumption here is that a fast toggle (<2s) can
only happen during ON->SEMI ->ON. In these states,
the AVC is still active and can provide the 2s delay. A
transition ON->SEMI->STBY->SEMI->ON cannot be
made in less than 2s, because the standby state will
be maintained for at least 4s.
Wait until previous on-state is left more than 2
seconds ago. (to prevent LCD display problems)
Assert RGB video blanking
and audio mute
CPipe already generates a valid output
clock in the semi-standby state: display
startup can start immediately when leaving
the semi-standby state.
Display already on?
(splash screen)
No
Switch on the display power by
switching LCD-PWR-ON low
The exact timings to
switch on the
display (LVDS
delay, lamp delay)
are defined in the
display file.
Yes
Wait x ms
Initialize audio and video
processing IC's and functions
according needed use case.
Switch on LVDS output in the 85500
Delay Lamp-on with the sum of the LVDS delay and
the Lamp delay indicated in the display file
Switch off the dimming backlight feature, set
the BOOST control to nominal and make sure
PWM output is set to maximum allowed PWM
Switch on LCD backlight (Lamp-ON)
Start POK line
detection algorithm
Wait until valid and stable audio and video, corresponding to the
requested output is delivered by the AVC
AND
the backlight has been switched on for at least the time which is
indicated in the display file as preheat time.
return
Switch Audio-Reset low and wait 5ms
A LED set does not normally need a
preheat time. The preheat remains present
but is set to zero in the display file.
Release audio mute and wait 100ms before any other audio
handling is done (e.g. volume change)
Restore dimming backlight feature, PWM and BOOST output
and unblank the video.
The higher level requirement is that audio and video
should be demuted without transient effects and that
the audio should be demuted maximum 1s before or
at the same time as the unblanking of the video.
Switch on the Ambilight functionality according the last status
settings.
Startup screen Option
and Installation setting
Photoscreen ON?
Yes
Display cfg file present
and up to date, according
correct display option?
No
No
Yes
Prepare Start screen Display config
file and copy to Flash
Active
18770_253_100216.eps
100216
Figure 5-6 “Semi Stand-by” to “Active” flowchart (EEFL or LED backlight 50/100 Hz only)
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The assumption here is that a fast toggle (<2s)
can only happen during ON->SEMI ->ON. In
these states, the AVC is still active and can
provide the 2s delay. If the transition ON->SEMI>STBY->SEMI->ON can be made in less than 2s,
we have to delay the semi -> stby transition until
the requirement is met.
Semi Standby
Wait until previous on-state is left more than 2
seconds ago. (to prevent LCD display problems)
Assert RGB video blanking
and audio mute
There is no need to define the
display timings since the timing
implementation is part of the Tcon.
Backlight already on?
(splash screen)
Yes
Initialize audio and video
processing IC's and functions
according needed use case.
No
Request Tcon to Switch on the backlight in a
direct LED or
set Lamp-on I/O line in case of a side LED
Start POK line
detection algorithm
Wait until valid and stable audio and video, corresponding to
the requested output is delivered by the AVC.
return
Switch Audio-Reset low and wait 5ms
The higher level requirement is that audio and
video should be demuted without transient
effects and that the audio should be demuted
maximum 1s before or at the same time as the
unblanking of the video.
Release audio mute and wait 100ms before any other audio
handling is done (e.g. volume change)
unblank the video.
Switch on the Ambilight functionality according the last status
settings.
Startup screen Option
and Installation setting
Photoscreen ON?
Yes
Display cfg file present
and up to date, according
correct display option?
No
No
Yes
Prepare Start screen Display config
file and copy to Flash
Active
18770_254_100216.eps
100216
Figure 5-7 “Semi Stand-by” to “Active” flowchart (LED backlight 200 Hz)
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Active
Mute all sound outputs via softmute
Wait 100ms
Set main amplifier mute (I/O: audio-mute)
Force ext audio outputs to ground
(I/O: audio reset)
And wait 5ms
switch off Ambilight
Wait until Ambilight has faded out: Output power
Observer should be zero
Switch off POK line
detection algorithm
switch off LCD backlight
(I/O or I²C)
Mute all video outputs
Yes
200Hz set?
No
Wait x ms (display file)
Instruct 200Hz
Tcon to turn off
the display
Switch off LVDS output in 85500
Wait x ms
The exact timings to
switch off the
display (LVDS
delay, lamp delay)
are defined in the
display file.
Switch off the display power by
switching LCD-PWR-ON high
Semi Standby
18770_255_100216.eps
100216
Figure 5-8 “Active” to “Semi Stand-by” flowchart
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Semi Stand by
If ambientlight functionality was used in semi-standby
(lampadaire mode), switch off ambient light (see CHS
ambilight)
Delay transition until ramping down of ambient light is
finished. *)
*) If this is not performed and the set is
switched to standby when the switch off of
the ambilights is still ongoing, the lights will
switch off abruptly when the supply is cut.
transfer Wake up reasons to the Stand by μP.
Switch Memories to self-refresh (this creates a more
stable condition when switching off the power).
Switch AVC system in reset state (reset-system and
reset-AVC lines)
Switch reset-USB, Reset-Ethernet and Reset-DVBs
LOW
Wait 10ms
Disable all supply related protections and switch off
the DC/DC converters (ENABLE-3V3n)
Wait 5ms
Switch OFF all supplies by switching HIGH the
Standby I/O line
Important remarks:
release reset audio 10 sec after entering
standby to save power
Also here, the standby state has to be
maintained for at least 4s before starting
another state transition.
Stand by
18770_256_100216.eps
100216
Figure 5-9 “Semi Stand-by” to “Stand-by” flowchart
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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).
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.
New in this chassis is the way errors can be displayed:
•
•
•
•
•
•
•
If no errors are there, the LED should not blink at all in
CSM or SDM. No spacer must be displayed as well.
There is a simple blinking LED procedure for board
level repair (home repair) so called LAYER 1 errors
next to the existing errors which are LAYER 2 errors (see
Table 5-2).
– LAYER 1 errors are one digit errors.
– LAYER 2 errors are 2 digit errors.
In protection mode.
– From consumer mode: LAYER 1.
– From SDM mode: LAYER 2.
Fatal errors, if I2C bus is blocked and the set reboots,
CSM and SAM are not selectable.
– From consumer mode: LAYER 1.
– From SDM mode: LAYER 2.
In CSM mode.
– When entering CSM: error LAYER 1 will be displayed
by blinking LED. Only the latest error is shown.
In SDM mode.
– When SDM is entered via Remote Control code or the
hardware pins, LAYER 2 is displayed via blinking LED.
Error display on screen.
– In CSM no error codes are displayed on screen.
– In SAM the complete error list is shown.
Basically there are three kinds of errors:
• Errors detected by the Stand-by software which lead to
protection. These errors will always lead to protection and
an automatic start of the blinking LED LAYER 1 error.
(see section “5.6 The Blinking LED Procedure”).
• Errors detected by the Stand-by software which not
lead to protection. In this case the front LED should blink
the involved error. See also section “5.5 Error Codes, 5.5.4
Error Buffer”. Note that it can take up several minutes
before the TV starts blinking the error (e.g. LAYER 1
error = 2, LAYER 2 error = 15 or 53).
•
5.5.2
Errors detected by main software (MIPS). In this case
the error will be logged into the error buffer and can be
read out via blinking LED method LAYER 1-2 error, or in
case picture is visible, via SAM.
How to Read the Error Buffer
Use one of the following methods:
• On screen via the SAM (only when a picture is visible).
E.g.:
– 00 00 00 00 00: No errors detected
– 23 00 00 00 00: Error code 23 is the last and only
detected error.
– 37 23 00 00 00: Error code 23 was first detected and
error code 37 is the last detected error.
– Note that no protection errors can be logged in the
error buffer.
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•
5.5.3
content, as this history can give 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 analog values on the stand-by processor or
the PNX8550.
• Via a “not acknowledge” of an I2C communication.
Via the blinking LED procedure. See section 5.5.3 How to
Clear the Error Buffer.
How to Clear the Error Buffer
Use one of the following methods:
• By activation of the “RESET ERROR BUFFER” command
in the SAM menu.
• If the content of the error buffer has not changed for 50+
hours, it resets automatically.
5.5.4
Error Buffer
Take notice that some errors need several minutes 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.
In case of non-intermittent faults, clear the error buffer before
starting to repair (before clearing the buffer, write down the
Table 5-2 Error code overview
Description
Monitored Error/ Error Buffer/
Layer 1 Layer 2 by
Prot Blinking LED Device
Defective Board
I2C3
2
13
MIPS
E
BL / EB
SSB
SSB
I2C2
2
14
MIPS
E
BL / EB
SSB
SSB
I2C4
2
18
MIPS
E
BL / EB
SSB
SSB
PNX doesn’t boot (HW cause) 2
15
Stby μP
P
BL
PNX8550
SSB
12V
3
16
Stby μP
P
BL
/
Supply
Inverter or display supply
3
17
MIPS
E
EB
/
Supply
PNX51X0
2/9
21
MIPS
E
EB
PNX51X0
200 Hz board
HDMI mux
2
23
MIPS
E
EB
Sil9x87A
SSB
I2C switch
2
24
MIPS
E
EB
PCA9540
SSB
SSB
Channel dec DVB-S
2
28
MIPS
E
EB
STV0903
Lnb controller
2
31
MIPS
E
EB
LNBH23
SSB
Tuner
2
34
MIPS
E
EB
DTT 71300
SSB
Main nvm
2
35
MIPS
E
EB
STM24C64
SSB
Tuner DVB-S
2
36
MIPS
E
EB
STV6110
SSB
T° sensor SSB/set
2
42
MIPS
E
EB
LM 75
T° sensor
T° sensor LED driver/Tcon
7
42
MIPS
E
EB
LM 75
T° sensor
PNX doesn’t boot (SW cause) 2
53
Stby μP
P
BL
PNX8550
SSB
Display
64
MIPS
E
BL / EB
Altera
Display
5
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 Hyperterminal (for Hyperterminal settings, see section “5.8 Fault
Finding and Repair Tips, 5.8.7 Logging). It’s shown that
the loggings which are generated by the main software
keep continuing.
•
Error 13 (I2C bus 3, SSB bus blocked). Current situation:
when this error occurs, the TV will constantly reboot due
to the blocked bus.
•
Error 14 (I2C bus 2, TV set bus blocked). Current situation: when this error occurs, the TV will constantly reboot
due to the blocked bus.
•
Error 18 (I2C bus 4, Tuner bus blocked). In case this bus
is blocked, short the “SDM” solder paths on the SSB during
startup, LAYER error 2 = 18 will be blinked.
Error 15 (PNX8550 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 PNX8550
(supplies not OK, PNX 8550 completely dead, I2C link
between PNX and Stand-by Processor broken, etc...).
When error 15 occurs it is also possible that I2C1 bus is
blocked (NVM). I2C1 can be indicated in the schematics as
follows: SCL-UP-MIPS, SDA-UP-MIPS.
LAYER 2 error = 28 will be logged and displayed via the
•
•
•
•
•
•
•
56
Other root causes for this error can be due to hardware
problems regarding the DDR’s and the bootscript reading
from the PNX8550.
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. LED blinking of LAYER 1
error = 3 in CSM, in SDM this gives LAYER 2 error = 17.
Error 21 (PNX51X0). When there is no I2C communication
towards the PNX51X0 after start-up, LAYER 2 error = 21
will be logged and displayed via the blinking LED
procedure if SDM is switched on. This device is located on
the 200 Hz panel from the display.
Error 23 (HDMI). When there is no I2C 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.
Error 24 (I2C switch). When there is no I2C
communication towards the I2C 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 I2C controlled screen included.
Error 28 (Channel dec DVB-S). When there is no I2C
communication towards the DVB-S channel decoder,
blinking LED procedure if SDM is switched on.
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•
Error 31 (Lnb controller). When there is no I2C
communication towards this device, LAYER 2 error = 31
will be logged and displayed via the blinking LED
procedure if SDM is activated.
Error 34 (Tuner). When there is no I2C communication
towards the tuner during start-up, LAYER 2 error = 34 will
be logged and displayed via the blinking LED procedure
when SDM is switched on.
Error 35 (main NVM). When there is no I2C
communication towards the main NVM during start-up,
LAYER 2 error = 35 will be displayed via the blinking LED
procedure when SDM is switched “on”. All service modes
(CSM, SAM and SDM) are accessible during this failure,
observed in the Uart logging as follows: "<< ERRO >>>
PFPOW_.C: First Error (id19, Layer_1= 2 Layer_= 35)".
Error 36 (Tuner DVB-S). When there is no I2C
communication towards the DVB-S tuner during start-up,
LAYER 2 error = 36 will be logged and displayed via the
blinking LED procedure when SDM is switched “on”.
Error 42 (Temp sensor). Only applicable for TV sets
equipped with temperature devices.
Error 53. This error will indicate that the PNX8550 has
read his bootscript (when this would have failed, error 15
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 a few minutes
before the TV starts blinking LAYER 1 error = 2 or in SDM,
LAYER 2 error = 53.
Error 64. Only applicable for TV sets with an I2C controlled
screen.
5.6
The Blinking LED Procedure
5.6.1
Introduction
The blinking LED procedure can be split up into two situations:
• Blinking LED procedure LAYER 1 error. In this case the
error is automatically blinked when the TV is put in CSM.
This will be only one digit error, namely the one that is
referring to the defective board (see table “5-2 Error code
overview”) which causes the failure of the TV. This
approach will especially be used for home repair and call
centres. The aim here is to have service diagnosis from a
distance.
• Blinking LED procedure LAYER 2 error. Via this
procedure, the contents of the error buffer can be made
visible via the front LED. In this case the error contains
2 digits (see table “5-2 Error code overview”) and will be
displayed when SDM (hardware pins) is activated. This is
especially useful for fault finding and gives more details
regarding the failure of the defective board.
Important remark:
For an empty error buffer, the LED should not blink at all in
CSM or SDM. No spacer will be displayed.
4. Six short blinks followed by a pause of 3 s
5. One long blink of 3 s to finish the sequence (spacer).
6. The sequence starts again.
5.6.2
How to Activate
Use one of the following methods:
• Activate the CSM. The blinking front LED will show only
the latest layer 1 error, this works in “normal operation”
mode or automatically when the error/protection is
monitored by the Stand-by processor.
In case no picture is shown and there is no LED blinking,
read the logging to detect whether “error devices” are
mentioned. (see section “5.8 Fault Finding and Repair
Tips, 5.8.7 Logging”).
• Activate the SDM. The blinking front LED will show the
entire content of the LAYER 2 error buffer, this works in
“normal operation” mode or when SDM (via hardware pins)
is activated when the tv set is in protection.
5.7
Protections
5.7.1
Software Protections
Most of the protections and errors use either the stand-by
microprocessor or the MIPS controller as detection device.
Since in these cases, checking of observers, polling of ADCs,
and filtering of input values are all heavily software based,
these protections are referred to as software protections.
There are several types of software related protections, solving
a variety of fault conditions:
• Related to supplies: presence of the +5V, +3V3 and 1V2
needs to be measured, no protection triggered here.
• Protections related to breakdown of the safety check
mechanism. E.g. since the protection detections are done
by means of software, failing of the software will have to
initiate a protection mode since safety cannot be
guaranteed any more.
Remark on the Supply Errors
The detection of a supply dip or supply loss during the normal
playing of the set does not lead to a protection, but to a cold
reboot of the set. If the supply is still missing after the reboot,
the TV will go to protection.
Protections during Start-up
During TV start-up, some voltages and IC observers are
actively monitored to be able to optimise the start-up speed,
and to assure good operation of all components. If these
monitors do not respond in a defined way, this indicates a
malfunction of the system and leads to a protection. As the
observers are only used during start-up, they are described in
the start-up flow in detail (see section “5.3 Stepwise Start-up”).
5.7.2
When one of the blinking LED procedures is activated, the front
LED will show (blink) the contents of the error buffer. Error
codes greater then 10 are shown as follows:
1. “n” long blinks (where “n” = 1 to 9) indicating decimal digit
2. A pause of 1.5 s
3. “n” short blinks (where “n”= 1 to 9)
4. A pause of approximately 3 s,
5. When all the error codes are displayed, the sequence
finishes with a LED blink of 3 s (spacer).
6. The sequence starts again.
Hardware Protections
The only real hardware protection in this chassis appears in
case of an audio problem e.g. DC voltage on the speakers. This
protection will only affect the Class D audio amplifier (item
7D10; see diagram B03A) and puts the amplifier in a
continuous burst mode (cyclus approximately 2 seconds).
Repair Tip
• There still will be a picture available but no sound. While
the Class D amplifier tries to start-up again, the cone of the
loudspeakers will move slowly in one or the other direction
until the initial failure shuts the amplifier down, this cyclus
starts over and over again. The headphone amplifier will
also behaves similar.
Example: Error 12 8 6 0 0.
After activation of the SDM, the front LED will show:
1. One long blink of 750 ms (which is an indication of the
decimal digit) followed by a pause of 1.5 s
2. Two short blinks of 250 ms followed by a pause of 3 s
3. Eight short blinks followed by a pause of 3 s
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5.8
Fault Finding and Repair Tips
•
Read also section “5.5 Error Codes, 5.5.4 Error Buffer, Extra
Info”.
5.8.2
+3V3-STANDY (3V3 nominal) is the permanent voltage,
supplying the Stand-by microprocessor inside PNX855xx.
Supply voltage +1V1 is started immediately when +12V voltage
becomes available (+12V is enabled by STANDBY signal when
"low"). Supply voltages +3V3, +2V5, +1V8, +1V2 and +5V-TUN
are switched "on" by signal ENABLE-3V3 when "low", provided
that +12V (detected via 7U40 and 7U41) is present.
Audio Amplifier
The Class D-IC 7D10 has a powerpad for cooling. When the IC
is replaced it must be ensured that the powerpad is very well
pushed to the PWB while the solder is still liquid. This is needed
to insure that the cooling is guaranteed, otherwise the Class DIC could break down in short time.
5.8.3
+12V is considered OK (=> DETECT2 signal becomes "high",
+12V to +1V8, +12V to +3V3, +12V to +5V DC-DC converter
can be started up) if it rises above 10V and doesn’t drop below
9V5. A small delay of a few milliseconds is introduced between
the start-up of 12V to +1V8 DC-DC converter and the two other
DC-DC converters via 7U48 and associated components.
AV PIP
To check the AV PIP board (if present) functionality, a
dedicated tespattern can be invoke as follows: select the
“multiview” icon in the User Interface and press the “OK”
button. Apply for the main picture an extended source, e.g.
HDMI input. Proceed by entering CSM (push ‘123654’ on the
remote control) and press the yellow button. A coloured
testpattern should appear now, generated by the AV PIP board
(this can take a few seconds).
5.8.4
Description DVB-S2:
• LNB-RF1 (0V = disabled, 14V or 18V in normal operation)
LNB supply generated via the second conversion channel
of 7T03 followed by 7T50 LNB supply control IC. It provides
supply voltage that feeds the outdoor satellite reception
equipment.
• +3V3-DVBS (3V3 nominal), +2V5-DVBS (2V5 nominal)
and +1V-DVBS (1.03V nominal) power supply for the
silicon tuner and channel decoder. +1V-DVBS is generated
via a 5V to 1V DC-DC converter and is stabilized at the
point of load (channel decoder) by means of feedback
signal SENSE+1V0-DVBS. +3V3-DVBS and +2V5-DVBS
are generated via linear stabilizers from +5V-DVBS that by
itself is generated via the first conversion channel of 7T03.
CSM
When CSM is activated and there is a USB stick connected to
the TV, the software will dump the complete CSM content to the
USB stick. The file (Csm.txt) will be saved in the root of the USB
stick. If this mechanism works it can be concluded that a large
part of the operating system is already working (MIPS, USB...)
5.8.5
+5V-TUN supply voltage (5V nominal) for tuner and IF
amplifier.
At start-up, +24V becomes available when STANDBY signal is
"low" (together with +12V for the basic board), when +3V3 from
the basic board is present the two DC-DC converters channels
inside 7T03 are activated. Initially only the 24V to 5V converter
(channel 1 of 7T03 generating +5V-DVBS) will effectively work,
while +V-LNB is held at a level around 11V7 via diode 6T55.
After 7T05 is initialized, the second channel of 7T03 will start
and generates a voltage higher then LNB-RF1 with 0V8. +5VDVBS start-up will imply +3V3-DVBS start-up, with a small
delay of a few milliseconds => +2V5-DVBS and +1V-DVBS will
be enabled.
DC/DC Converter
Description basic board
The basic board power supply consists of 4 DC/DC converters
and 5 linear stabilizers. All DC/DC converters have +12V input
voltage and deliver:
• +1V1 supply voltage (1.15V nominal), for the core voltage
of PNX855xx, stabilized close to the point of load;
SENSE+1V1 signal provides the DC-DC converter the
needed feedback to achieve this.
• +1V8 supply voltage, for the DDR2 memories and DDR2
interface of PNX855xx.
• +3V3 supply voltage (3.30V nominal), overall 3.3 V for
onboard IC’s, for non-5000
631 series SSB diversities only.
• +5V (5.15V nominal) for USB, WIFI and Conditional
Access Module and +5V5-TUN for +5V-TUN tuner
stabilizer.
If +24V drops below +15V level then the DVB-S2 supply will
stop, even if +3V3 is still present.
Debugging
The best way to find a failure in the DC/DC converters is to
check their start-up sequence at power “on” via the mains cord,
presuming that the stand-by microprocessor and the external
supply are operational. Take STANDBY signal "high"-to-"low"
transition as time reference.
When +12V becomes available (maximum 1 second after
STANDBY signal goes "low") then +1V1 is started immediately.
After ENABLE-3V3 goes "low", all the other supply voltages
should rise within a few milliseconds.
The linear stabilizers are providing:
• +1V2 supply voltage (1.2V nominal), stabilized close to
PNX855xx device, for various other internal blocks of
PNX855xx; SENSE+1V2 signal provides the needed
feedback to achieve this.
• +2V5 supply voltage (2.5V nominal) for LVDS interface and
various other internal blocks of PNX855xx; for 5000
631 series
SSB diversities the stabilizer is 7UD2 while for the other
diversities 7UC0 is used.
• +3V3 supply voltage (3V3 nominal) for 631
5000 series SSB
diversities, provided by 7UD3; in this case the 12V to 3V3
DC-DC converter is not present.
Tips
• Behaviour comparison with a reference TV550 platform
can be a fast way to locate failures.
• If +12V stays "low", check the integrity of fuse 1U40.
• Check the integrity (at least no short circuit between drain
and source) of the power MOS-FETs before starting up the
platform in SDM, otherwise many components might be
damaged. Using a ohmmeter can detect short circuits
between any power rail and ground or between +12V and
any other power rail.
• Short circuit at the output of an integrated linear stabilizer
(7UC0, 7UD2 or 7UD3) will heat up this device strongly.
• Switching frequencies should be 500 kHz ...600 kHz for
12 V to 1.1 V and 12 V to 1.8 V DC-DC converters,
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Uart loggings reporting fault conditions, error messages, error
codes, fatal errors:
• Failure messages should be checked and investigated.For
instance fatal error on the PNX51x0: check startup of the
back-end processor, supplies..reset, I2C bus. => error
mentioned in the logging as: *51x0 failed to start by itself*.
• Some failures are indicated by error codes in the logging,
check with error codes table (see Table “5-2 Error code
overview”).e.g. => <<<ERROR>>>PLFPOW_MERR.C :
First Error (id=10,Layer_1=2,Layer_2=23).
•
I2C bus error mentioned as e.g.: “ I2C bus 4 blocked”.
• Not all failures or error messages should be interpreted as
fault.For instance root cause can be due to wrong option
codes settings => e.g. “DVBS2Suppoprted : False/True.
In the Uart log startup script we can observe and check the
enabled loaded option codes.
900 kHz for 12 V to 3.3 V and 12 V to 5 V DC-DC
converters. The DVB-S2 supply 24 V to 5 V and 24 V to +V
LNB DC-DC converters operates at 300 kHz while for 5 V
to 1.1 V DC-DC converter 900 kHz is used.
5.8.6
Exit “Factory Mode”
When an “F” is displayed in the screen’s right corner, this
means the set is in “Factory” mode, and it normally
happens after a new SSB is mounted. To exit this mode, push
the “VOLUME minus” button on the TV’s local keyboard for 10
seconds (this disables the continuous mode).
Then push the “SOURCE” button for 10 seconds until the “F”
disappears from the screen.
5.8.7
Logging
Defective sectors (bad blocks) in the Nand Flash can also be
reported in the logging.
When something is wrong with the TV set (f.i. the set is rebooting) you can check for more information via the logging in Hyperterminal. The Hyperterminal is available in every Windows
application via Programs, Accessories, Communications, Hyperterminal.
After start-up of the Hyperterminal, fill in a name (f.i. “logging”)
in the “Connection Description” box, then apply the following
settings:
1. COMx
2. Bits per second = 115200
3. Data bits = 8
4. Parity = none
5. Stop bits = 1
6. Flow control = none
During the start-up of the TV set, the logging will be displayed.
This is also the case during rebooting of the TV set (the same
logging appears time after time). Also available in the logging
is the “Display Option Code” (useful when there is no picture),
look for item “DisplayRawNumber” in the beginning of the
logging. Tip: when there is no picture available during rebooting
you are able to check for “error devices” in the logging (LAYER
2 error) which can be very helpful to determine the failure cause
of the reboot. For protection state, there is no logging.
5.8.8
Startup in the SW upgrade application and observe the Uart
logging:
Starting up the TV set in the Manual Software Upgrade mode
will show access to USB, meant to copy software content from
USB to the DRAM.Progress is shown in the logging as follows:
“cosupgstdcmds_mcmdwritepart: Programming 102400 bytes,
40505344 of 40607744 bytes programmed”.
Startup in Jett Mode:
Check Uart logging in Jet mode mentioned as : “JETT UART
READY”.
Uart logging changing preset:
=> COMMAND: calling DFB source = RC6, system=0, key = 4”.
5.8.9
Loudspeakers
Make sure that the volume is set to minimum during
disconnecting the speakers in the ON-state of the TV. The
audio amplifier can be damaged by disconnecting the speakers
during ON-state of the set!
Guidelines Uart logging
5.8.10 PSL
Description possible cases:
Uart loggings are displayed:
• When Uart loggings are coming out, the first conclusion we
can make is that the TV set is starting up and
communication with the flash RAM seems to be supported.
The PNX855xx is able to read and write in the DRAMs.
• We can not yet conclude : Flash RAM and DRAMs are fully
operational/reliable.There still can be errors in the data
transfers, DRAM erros, read/write speed and timing
control.
No Uart logging at all:
• In case there is no Uart logging coming out, check if the
startup script can be send over the I2C bus (3 trials to
startup) + power supplies are switched on and stable.
• No startup will end up in a blinking LED status : error
LAYER 1 = “2”, error LAYER 2 = “53” (startup with SDM
solder paths short).
• Error LAYER 2 = “15” (hardware cause) is more related to
a supply issue while error LAYER 2 = “53” (software cause)
refers more to boot issues.
In case of no picture when CSM (test pattern) is activated and
backlight doesn’t light up, it’s recommended first to check the
inverter on the PSL + wiring (LAYER 2 error = 17 is displayed
in SDM).
5.8.11 Tuner
Attention: In case the tuner is replaced, always check the tuner
options!
5.8.12 Display option code
Attention: In case the SSB is replaced, always check the
display option code in SAM, even when picture is available.
Performance with the incorrect display option code can lead to
unwanted side-effects for certain conditions.
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Service Modes, Error Codes, and Fault Finding (continued)
5.8.13 SSB Replacement
Follow the instructions in the flowchart in case a SSB has to be
exchanged. See figure “SSB replacement flowchart”.
In s t ru ct io n n o t e SS B rep lacem en t
S55x.x
S T AR T
Before starting:
- prepare a USB memory stick with the latest software
- download the latest Main Software (Fus)
- unzip this file
- create a folder ”upgrades” in the root of a USB stick (size > 50 MB) and
save the autorun.upg file in this "upgrades" folder.
Note: it is possible to rename this file, e.g."S54x_SW_version.upg"; this in
case there are more than one "autorun.upg" files on the USB stick.
Set is still oper ating?
No
Yes
C onnect the U SB stick to the set,
go to SAM and save the current TV settings via “Upload to USB”
1. D isconnect the WiF i module fr om the PC I connector (only for Q549.x SSB)
2. Replace the SSB by a Service SSB.
3. Place the WiFi module in the PCI connector.
4. Mount the Service SSB in the set.
Start-up the set
Due to a possible wrong display option code in the received Service
SSB (NVM), it’s possible that no picture is displayed. Due to this
the download application will not be shown either. This tree enables you
to load the main software step-by-step via the UART logging on the PC
(this for visual feedback).
No pictur e displayed
Set behaviour?
1) Start up the TV set, equiped with the Service SSB,
and enable the UART logging on the PC.
Pictur e displayed
Set is starting up without software
upgrade menu appearing on screen
Pictur e displayed
Set is starting up with software
upgrade menu appearing on screen
2) The TV set will start-up automatically in the
download application if main TV software is not loaded.
1) Plug the USB stick into the TV set and select
the “autorun .upg” file in the displayed browser.
3) Plug the prepared USB stick into the TV set. Follow the
instructions in the UART log file, press “Right” cursor key to enter
the list. Navigate to the “autorun.upg” file in the UART logging
printout via the cursor keys on the remote control. When the
correct file is selected, press “Ok”.
2) Now the main software will be loaded automatically,
supported by a progress bar.
4) Press "Down" cursor and “Ok” to start flashing the main
TV software. Printouts like: “L: 1-100%, V: 1-100% and
P: 1-100%” should be visible now in the UART logging.
3) Wait until the message “Operation successful !” is displayed
and remove all inserted media. Restart the TV set.
5) Wait until the message “Operation successful !” is logged in
the UART log and remove all inserted media. Restart the TV set.
Set the correct “Display code” via “062598 -HOME- xxx” where
“xxx” is the 3 digit display panel code (see Table 5-1-2)
After entering the “Display Option” code, the set is going to
Standby
(= validation of code)
No
Restart the set
Saved settings
on USB stick?
Yes
Go to SAM and reload settings
via “Download from USB” function.
Program set type number, serial number, and di
Program E - DFU if needed.
In case of settings reloaded from USB, the set type,
serial number, display 12 NC, are automatically stored
when entering display options.
splay 12 NC
If not already done:
Check latest software on Service website.
Update main and Stand-by software via USB.
Attention point for Net TV: If the set type and serial number are not
filled in, the Net TV functionality will not work . It will not be possible
to connect to the internet.
- Check if correct “display option” code is programmed.
- Verify “option codes” according to table 5-1-2.
- Default settings for “white drive” > see Service Manual.
Check and perform alignments in SAM according to the
Service Manual. Option codes, colour temperature, etc.
Final check of all menus in CSM.
Special attention for HDMI Keys and Mac address.
Check if E - D F U is present.
End
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Updated 02-06-2011
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Service Modes, Error Codes, and Fault Finding (continued)
Set is st art in g u p in F act o ry m o d e
Set is starting up in F actory m ode?
Noisy picture with bands/lines is visible and the
RED LED is continuous on.
An “F” is displayed (and the HDMI 1
input is displayed).
- Press the “volume minus” button on the TVs local keyboard for 5 ~10
seconds
- Press the “SOURCE” button for 10 seconds until the “F” disappears
from the screen or the noise on the screen is replaced by “blue mute”
The noise on the screen is replaced
with the blue mute or the “F” is disappeared!
Unplug the mains cord to verify the correct
disabling of the Factory mode.
Program display option code
via “062598 MENU”, followed by
the 3 digits code of the display
(this code can be found
on Table 5-1-2).
After entering “display option” code, the set is
going in stand-by mode (= validation of code)
R estart the set
Figure 5-12 SSB replacement flowchart - Factory mode
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Service Modes, Error Codes, and Fault Finding (continued)
18753_211_100811.eps
100811
Figure 5-13 SSB start-up
SOFTWARE UPGRADING
5.9
Software Upgrading
5.9.1
Introduction
For the correct order number of a new SSB, always refer to the
Spare Parts list!
5.9.2
The set software and security keys are stored in a NANDFlash, which is connected to the PNX855xx.
Main Software Upgrade
•
The “UpgradeAll.upg” file is only used in the factory.
Automatic Software Upgrade
In “normal” conditions, so when there is no major problem with
the TV, the main software and the default software upgrade
application can be upgraded with the “AUTORUN.UPG”
(FUS part of the one-zip file: e.g. 3104 337 05661 _FUS
_Q555X_
x.x.x.x_prod.zip). This can also be done by the
_S5551_x.x.x.x_prod.zip).
consumers themselves, but they will have to get their software
www.sharp-eu.com
site or via the Software Update
from the commercial
Philips website
Assistant in the user menu (see eUM). The “autorun.upg” file
must be placed in the root of the USB stick.
How to upgrade:
1. Copy “AUTORUN.UPG” to the root of the USB stick.
2. Insert USB stick in the set while the set is operational. The
set will restart and the upgrading will start automatically. As
soon as the programming is finished, a message is shown
to remove the USB stick and restart the set.
It is possible for the user to upgrade the main software via the
USB port. This allows replacement of a software image in a
stand alone set, without the need of an E-JTAG debugger. A
description on how to upgrade the main software can be found
in the electronic User Manual.
Important: When the NAND-Flash must be replaced, a new
SSB must be ordered, due to the presence of the security keys!
(CI +, MAC address, ...).
Perform the following actions after SSB replacement:
1. Set the correct option codes (see
(see Table
sticker6-6).
inside the TV).
2. Update the TV software => see the eUM (electronic User
Manual) for instructions.
3. Perform the alignments as described in chapter 6 (section
6.5 Reset of Repaired SSB).
4. Check in CSM if the CI + key, MAC address.. are valid.
Manual Software Upgrade
In case that the software upgrade application does not start
automatically, it can also be started manually.
How to start the software upgrade application manually:
1. Disconnect the TV from the Mains/AC Power.
2. Press the “OK” button on a SHARP TV remote control.
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Service Modes, Error Codes, and Fault Finding (continued)
3. The software upgrade application will start.
Attention!
In case the download application has been started manually,
the “autorun.upg” will maybe not be recognized.
What to do in this case:
1. Create a directory “UPGRADES” on the USB stick.
2. Rename the “autorun.upg” to something else, e.g. to
“software.upg”. Do not use long or complicated names,
keep it simple. Make sure that “AUTORUN.UPG” is no
longer present in the root of the USB stick.
3. Copy the renamed “upg” file into this directory.
4. Insert USB stick into the TV.
5. The renamed “upg” file will be visible and selectable in the
upgrade application.
Back-up Software Upgrade Application
If the default software upgrade application does not start (could
be due to a corrupted boot sector) via the above described
method, try activating the “back-up software upgrade
application”.
How to start the “back-up software upgrade application”
manually:
1. Disconnect the TV from the Mains/AC Power.
2. Press the “CURSOR DOWN”-button on a
Philips TV
SHARP
remote control while reconnecting the TV to the Mains/AC
Power.
3. The back-up software upgrade application will start.
5.9.3
Stand-by Software Upgrade via USB
In this chassis it is possible to upgrade the Stand-by software
via a USB stick. The method is similar to upgrading the main
software via USB.
Use the following steps:
1. Create a directory “UPGRADES” on the USB stick.
2. Copy the Stand-by software (part of the one-zip file, e.g.
StandbyFactory_88.0.0.0.upg) into this directory.
3. Insert the USB stick into the TV.
4. Start the download application manually (see section “
Manual Software Upgrade”.
5. Select the appropriate file and press the “OK” button to
upgrade.
5.9.4
Content and Usage of the One-Zip Software File
Below the content of the One-Zip file is explained, and
instructions on how and when to use it.
•
•
•
•
•
5.9.5
_S55XX_x.x.x.x_prod.zip. Contains the
BalanceFPGA_Q555X_x.x.x.x_prod.zip.
BalanceFPGA software in “upg” format.
_S55XX_x.x.x.x_prod.zip. Contains the
FUS_Q555X_x.x.x.x_prod.zip.
“autorun.upg” which is needed to upgrade the TV main
software and the software download application.
PNX5130UPG_Q555X_x.x.x.x_prod.zip.
_S55XX_x.x.x.x_prod.zip. Contains the
PNX5130 software in “upg” format.
_S55XX_x.x.x.x_prod.zip. Contains the
StandbySW_Q555X_x.x.x.x_prod.zip.
StandbyFactory software in “upg” format.
ProcessNVM_S55XX_x.x.x.x_prod.zip.. Default NVM
content. Must be programmed via USB, be aware that
all alignments stored in NVM are overwritten here.
UART logging 2K10 (see section “5.8 Fault Finding and
Repair Tips, 5.8.7 Logging)
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ALIGNMENTS
6. Alignments
•
Index of this chapter:
6.1 General Alignment Conditions
6.2 Hardware Alignments
6.3 Software Alignments
6.4 Option Settings
6.5 Reset of Repaired SSB
6.6 Total Overview SAM modes
6.1
General Alignment Conditions
•
•
6.3.1
Perform all electrical adjustments under the following
conditions:
• Power supply voltage (depends on region):
– AP-NTSC: 120 VAC or 230 VAC / 50 Hz (r 10%).
– AP-PAL-multi: 120 - 230 VAC / 50 Hz (r 10%).
– EU: 230 VAC / 50 Hz (r 10%).
– LATAM-NTSC: 120 - 230 VAC / 50 Hz (r 10%).
– US: 120 VAC / 60 Hz (r 10%).
• Connect the set to the mains via an isolation transformer
with low internal resistance.
• Allow the set to warm up for approximately 15 minutes.
• Measure voltages and waveforms in relation to correct
ground (e.g. measure audio signals in relation to
AUDIO_GND).
Caution: It is not allowed to use heat sinks as ground.
• Test probe: Ri > 10 M:, Ci < 20 pF.
• Use an isolated trimmer/screwdriver to perform
alignments.
White Point
•
Contrast
100
Brightness
50
Colour
0
Light Sensor
Off
Picture format
Unscaled
•
“Brilliant colour processor +”
Picture Setting
Dynamic Contrast
Off
Dynamic Backlight
Off
Colour Enhancement
Off
Gamma
0
Go to the SAM and select “Alignments”-> “White point”.
Alignment Sequence
•
•
•
6.2
Choose “TV menu”, “Setup”, “More TV Settings” and then
“Picture” and set picture settings as follows:
Picture Setting
•
6.1.1
EU/AP-PAL models: a PAL B/G TV-signal with a signal
strength of at least 1 mV and a frequency of 475.25 MHz
US/AP-NTSC models: an NTSC M/N TV-signal with a
signal strength of at least 1 mV and a frequency of 61.25
MHz (channel 3).
LATAM models: an NTSC M TV-signal with a signal
strength of at least 1 mV and a frequency of 61.25 MHz
(channel 3).
White point alignment LCD screens:
• Use a 100% white screen (format: 720p50) to the HDMI
input and set the following values:
– “Colour temperature”: “Cool”.
– All “White point” values to: “127”.
First, set the correct options:
– In SAM, select “Option numbers”.
– Fill in the option settings for “Group 1” and “Group 2”
according to the
set6-6
sticker (see also paragraph 6.4
Table
Option Settings).
– Press OK on the remote control before the cursor is
moved to the left.
– In submenu “Option numbers” select “Store” and press
OK on the RC.
OR:
– In main menu, select “Store” again and press OK on
the RC.
– Switch the set to Stand-by.
Warming up (>15 minutes).
In case you have a colour analyser:
• Measure, in a dark environment, with a calibrated
contactless colour analyser (Minolta CA-210 or Minolta
CS-200) in the centre of the screen and note the x, y value.
• Change the pattern to 90% white screen. If a Quantum
Data generator is used, select the “GreyAll” test pattern at
level = 230.
•
Adjust the correct x, y coordinates (while holding one of
the White point registers R, G or B on 127) by means of
decreasing the value of one or two other white points to the
correct x, y coordinates (see Table 6-1 White D alignment
values - LED - Minolta CA-210. Tolerance: dx: +/- 0.002,
dy: +/- 0.002.
Hardware Alignments
Not applicable.
•
6.3
Software Alignments
•
Put the set in SAM mode (see Chapter 5. Service Modes, Error
Codes, and Fault Finding). The SAM menu will now appear on
the screen. Select ALIGNMENTS and go to one of the sub
menus. The alignments are explained below.
The following items can be aligned:
• White point
• Ambilight.
•
Repeat this step for the other colour temperatures that
need to be aligned.
When finished press OK on the RC and then press STORE
(in the SAM root menu) to store the aligned values to the
NVM.
Restore the initial picture settings after the alignments.
Table 6-1 White D alignment values - LED - Minolta CA-210
To store the data:
• Press OK on the RC before the cursor is moved to the
left
• In main menu select “Store” and press OK on the RC
• Switch the set to stand-by mode.
For the next alignments, supply the following test signals via a
video generator to the RF input:
64
Value
Cool (9420K)
Normal (8120K)
Warm (6080K)
x
0.282
0.280
0.292
0.291
0.320
0.318
y
0.298
0.293
0.311
0.308
0.345
0.341
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Alignments (continued)
6.4
Option Settings
6.4.1
Introduction
6.4.4
Select this sub menu to set all options at once (expressed in
two long strings of numbers).
An option number (or “option byte”) represents a number of
different options. When you change these numbers directly,
you can set all options very quickly. All options are controlled
via eight option numbers.
When the NVM is replaced, all options will require resetting. To
be certain that the factory settings are reproduced exactly, you
must set both option number lines. You can find the correct
6-6inside
(following
page.)
option numbers on Table
a sticker
the TV
set.
12232 04256 00164 00000
The first line (group 1) indicates hardware options 1 to 4, the
second line (group 2) indicate software options 5 to 8.
Every 5-digit number represents 16 bits (so the maximum value
will be 65536 if all options are set).
When all the correct options are set, the sum of the decimal
values of each Option Byte (OB) will give the option number.
The microprocessor communicates with a large number of I2C
ICs in the set. To ensure good communication and to make
digital diagnosis possible, the microprocessor has to know
which ICs to address. The presence / absence of these
PNX51XX ICs (back-end advanced video picture improvement
IC which offers motion estimation and compensation features
(commercially called HDNM) plus integrated Ambilight control)
is made known by the option codes.
Notes:
• After changing the option(s), save them by pressing the OK
button on the RC before the cursor is moved to the left,
select STORE in the SAM root menu and press OK on the
RC.
• The new option setting is only active after the TV is
switched “off” / “stand-by” and “on” again with the mains
switch (the NVM is then read again).
6.4.2
6.4.5
6.5
(Service) Options
Option Code Overview
Table 6-6
Refer to the sticker
in the set for the correct option codes.
Important: after having edited the option numbers as
described above, you must press OK on the remote control
before the cursor is moved to the left!
Dealer Options
For dealer options, in SAM select “Dealer options”.
See Table 6-6 SAM mode overview.
6.4.3
Opt. No. (Option numbers)
Reset of Repaired SSB
After a repaired SSB has been mounted in the set (set repair on
board level), the type number (CTN) and production code of the
TV has to be set according to the type plate of the set. For this,
you can use the NVM editor in SAM. This action also ensures
the correct functioning of the “Net TV” feature and access to the
Net TV portals.
From 2011 onwards, it is not longer possible to change
individual option settings in SAM. Options can only be changed
all at once by using the option codes as described in section
6.4.4.
After a SSB repair, the original channel map can be restored,
provided that the original channel map was stored on a USB
stick before repair was commenced and that basic functionality
of the TV, needed for this procedure, was not hampered as a
result of the defect. The procedure of “channel map cloning” is
clearly described in the (electronic) user manual.
In case of a display replacement, reset the “Operation hours
display” to “0”, or to the operation hours of the replacement
display.
Table 6-6 Option numbers
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00008 00001 15421 04287
00008 00001 15421 04287
00008 00001 15421 02239
43850 34311 33024 00011
43849 34311 33024 00011
43847 34311 33024 00011
Panel
R1LK315D3LA63Y
R1LK400D3LB43Y
R1LK460D3LB33Y
VE2 Panel
R1LK315D3LA63F
R1LK400D3LB43F
R1LK460D3LB33F
In all cases the Software Version is V0.10.82.0 or upper.
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Alignments (continued)
6.5.1
SSB identification
Whenever ordering a new SSB, it should be noted that the
correct ordering number (12nc) of a SSB is located on a sticker
on the SSB. The format is <12nc SSB><serial number>. The
ordering number of a “Service” SSB is the same as the ordering
number of an initial “factory” SSB.
18310_221_090318.eps
090319
Figure 6-1 SSB identification
6.6
Total Overview SAM modes
Table 6-6 SAM mode overview
Main Menu
Sub-menu 1
Sub-menu 2
Hardware Info
A. SW version
e.g. “S5551_0.9.21.0”
“Q5551_0.9.1.0
Sub-menu 3
B. Stand-by processor version e.g. “STDBY_83.84.0.0”
“STDBY_89.167.5.0”
C. Production code
Description
Display TV & Stand-by SW version and CTN serial
number
e.g. “see type plate”
Operation hours
Displays the accumulated total of operation hours.TV
switched “on/off” & every 0.5 hours is increase one
Errors
Displayed the most recent errors
Reset error buffer
Alignment
Clears all content in the error buffer
White point
Colour temperature
Normal
Warn
3 different modes of colour temperature can be
selected
Cool
White point red
LCD White Point Alignment. For values,
LCD
White6-3
Point
Alignment.
Forsetting
values,
see
see Table
White
tone default
32"
White point green
Table
6-1 White
D alignment
(Blockbuster)
to 6-5
White tonevalues
default setting 40"
White point blue
Ambilight
(Blockbuster)
Select module
Brightness
Select matrix
Dealer options
Virgin mode
Off/On
Select Virgin mode On/Off. TV starts up / does not
start up (once) with a language selection menu after
the mains switch is turned “on” for the first time (virgin
mode)
E-sticker
Off/On
Select E-sticker On/Off (USP’s on-screen)
Auto store mode
None
PDC/VPS
TXT page
PDC/VPS/TXT
Option numbers
Group 1
e.g. “00008.00001.15421.02239”
The first line (group 1) indicates hardware options 1
to 4
Group 2
e.g. “44816.34311.33024.00000”
The second line (group 2) indicates software options
5 to 8
Store
Store after changing
Initialise NVM
N.A.
Store
Select Store in the SAM root menu after making any
changes
Operation hours display
Software maintenance
Software events
0003
In case the display must be swapped for repair, you
can reset the “”Display operation hours” to “0”. So,
this one does keeps up the lifetime of the display
itself (mainly to compensate the degeneration
behaviour)
Display
Display information is for development purposes
Clear
Test reboot
Test cold reboot
Test application crash
Hardware events
Display
Display information is for development purposes
Clear
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Alignments (continued)
Main Menu
Sub-menu 1
Sub-menu 2
Test setting
Digital info
Current frequency: 538
Sub-menu 3
QAM modulation: 64-qam
Description
Display information is for development purposes
Symbol rate:
Original network ID: 12871
Network ID: 12871
Transport stream ID: 2
Service ID: 3
Hierarchical modulation: 0
Selected video PID: 35
Selected main audio PID: 99
Selected 2nd audio PID: 8191
Install start frequency
000
Install start frequency from “0” MHz
Install end frequency
999
Install end frequency as “999” MHz
Digital only
Digital + Analogue
Select Digital only or Digital + Analogue before
installation
Display parameters DISPT5.0.9.29
DISPT5.0.9.7
Display information is for development purposes
Default install frequency
Installation
Development file
versions
Development 1 file version
Acoustics parameters ACSTS
5.2.6.6
5.0.6.20
PQ - TV550 1.0.27.22
1.0.27.7
PQS- Profile set
PQF - Fixed settings
PQU - User styles
Ambilight parameters PRFAM 5.0.5.2
Development 2 file version
12NC one zip software
Display information is for development purposes
Initial main software
NVM version Q55x1_0.4.5.0
(e.g. )“S5551_0.9.16.0”
Flash units software
Temp com file version none
Upload to USB
Channel list
To upload several settings from the TV to an USB
stick
Personal settings
Option codes
Alignments
Identification data
History list
All (options included)
Download from USB
Channel list
To download several settings from the USB stick to
the TV
Personal settings
Option codes
Alignments
Identification data
All (options included)
NVM editor
Type number (Press “OK” to enter) see type plate
Production
AG codeCode (Press “OK” to enter)
NVMthe
editor;
key-in
number (whitout
and production
Enter
modelrename,
e.g.type
LC32LE630E
“-”)
code Number
after SSB replacement
Serial
see type plate
67
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