Philips 24PHA4309 / 56/98, 24PHA4309S / 98, 24PHA4509 / 98/56, 24PHA4509S / 98, 24PHA4309S / 40, 32PHA4509 / 56/98, 32PHA4509S / 98/40, 32PHT5109 / 56/98, 32PHT5109S / 98, 40PFA4509 / 56/98, 40PFA4509S / 98/40, 50PFA4509S / 98 / 40, 50PFA4509 / 56/98, 58PFT5309S / 40
Alternative
BOM identification
It should be
noted that on the European Service website, “Alternative BOM” is referred to as
“Design variant”.
The third digit in the serial number (example: AG2B0335000001) indicates the number of
the alternative B.O.M. (Bill Of Materials) that has been used for producing the
specific TV set. In general, it is possible that the same TV model on the
market is produced with e.g. two different types of displays, coming from two
different suppliers. This will then result in sets which have the
same CTN (Commercial Type Number; e.g. 28PW9515/12) but which have a different
B.O.M. number.
By looking at the third digit of the serial number, one can identify which
B.O.M. is used for the TV set he is working with.
If the third digit of the serial number contains the number “1” (example: AG1B033500001),
then the TV set has been manufactured according to B.O.M. number 1. If the
third digit is a “2” (example: AG2B0335000001), then the set has been produced
according to B.O.M. no. 2. This is important for ordering the correct spare
parts.
For the third digit, the numbers 1...9 and the characters A...Z can be used, so
in total: 9 plus 26= 35 different B.O.M.s can be indicated by the third digit
of the serial number.
Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 1 and 2 refer to the production centre (e.g.SN is Lysomice, RJ is Kobierzyce), digit 3 refers to the B.O.M. code, digit 4 refers to the Service version change code, digits 5 and 6 refer to the production year, and digits 7 and 8 refer to production week (in example below it is 2010 week 10 / 2010 week 17). The 6 last digits contain the serial number.
Board Level Repair (BLR) or Component Level
Repair (CLR)
If a board
is defective, consult your repair procedure to decide if the board has to be
exchanged or if it should be repaired on component level.
If your repair procedure says the
board should be exchanged completely, do not solder on the defective board.
Otherwise, it cannot be returned to the O.E.M. supplier for back charging.
Service Positions
For
easy servicing of a TV set, the set should be put face down on a soft flat
surface, foam buffers or other specific workshop tools. Ensure that a stable
situation is created to perform measurements and alignments. When using foam
bars take care that these always support the cabinet and never only the display.
Caution: Failure to follow these guidelines can seriously damage the
display.
Ensure that ESD safe measures are taken.
Service Modes and Fault Finding
Service Modes
The
Service Mode feature is split into five parts:
• Factory Mode.
• Customer Service Mode (CSM).
The Factory mode offer features, which can be used by the Service engineer to
repair/align a TV set. Some features are:
• Make alignments (e.g. White Tone), reset the error buffer
(Factory Mode).
The CSM is a Service Mode that can be enabled by the consumer. The CSM displays
diagnosis information, which the customer can forward to the dealer or call
centre. In CSM mode, “CSM”, is displayed in the top right corner of the screen.
The information provided in CSM and the purpose of CSM is to:
• Increase the home repair hit rate.
• Decrease the number of nuisance calls.
• Solved customers’ problem without home visit.
Note: For the new model range, a new remote control (RC) is used with
some renamed buttons. This has an impact on the activation of the Service
modes. For instance the old “MENU” button is now called “HOME” (or is indicated
by a “house” icon).
Software Identification,
Version, and Cluster
The software ID and version will be shown in the main menu display
of CSM.
The screen will show: “AAAAB-X.YYY”, where:
• AAAA is the chassis name: TPS141A x.yyy.
• B is the region indication: E = Europe, A = AP/China, U = NAFTA, L = LATAM.
• X is the main version number: this is updated with a major change of
specification (incompatible with the previous software version). Numbering will
go from 1 - 99 and AA - ZZ.
- If the main version number changes, the new version number is written in the
NVM.
- If the main version number changes, the default settings are loaded.
• YYY is the sub version number: this is updated with a minor change (backwards
compatible with the previous versions). Numbering will go from 000 - 999.
- If the sub version number changes, the new version number is written in the
NVM.
- If the NVM is refreshed, the software identification, version, and cluster
will also be written to NVM.
How to Activate the
Factory mode
To activate the Factory mode, use the following method:
• Press the following key sequence on the remote control transmitter: from the “Home screen”
press “1999”, directly followed by the “Back” button. Do not allow
the display to time out between entries while keying the sequence.
After entering the Factory mode, the following items are displayed,
Factory mode overview
How to Exit the Factory
mode
Use one of the following methods:
• Select EXIT_FACTORY from the menu and press the “OK” button.
Note: When the TV is switched “off” by a power interrupt, or normal
switch to “stand-by” while in the factory mode, the TV will show up in “normal
operation mode” as soon as the power is supplied again. The error buffer will
not be cleared.
Customer Service Mode
(CSM)
Purpose
The Customer Service
Mode shows error codes and information on the TV’s operation settings. The call
center can instruct the customer (by telephone) to enter CSM in order to identify
the status of the set. This helps the call center to diagnose problems and
failures in the TV set before making a service call.
The CSM is a read-only mode; therefore, modifications are not possible in this
mode.
Specifications
• Ignore “Service unfriendly modes”.
• Possibility to use “CH+” or “CH-” for channel surfing, or enter the specific
channel number on the RC.
How to Activate CSM
To activate CSM, press the following key sequence on a standard remote
control transmitter: “456987” (do
not allow the display to time out between entries while keying the sequence).
After entering the Customer Service Mode, the following items are displayed.
Note: Activation of the CSM is only possible if there is no (user) menu
on the screen
Contents of CSM
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.
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.
HDCP keys Indicates the validity of the HDMI keys (or HDCP keys). In
case these keys are not valid and the customer wants to make use of the HDMI
functionality, the SSB has to be replaced.
NVM name Detects and
displays NVM name.
Software Version Displays the software version.
RS232 Display RS232.
TV Region Display TV region.
LCD display panel 12NC NVM read/write.
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.
PSU 12NC NVM read/write.
How to Exit CSM
To exit CSM, use one of the following methods.
• Press the MENU/HOME button on the remote control transmitter.
• Press the POWER button on the remote control transmitter.
• Press the POWER button on the television set.
Reset of Repaired SSB
[Small Signal Board]
A
very important issue towards a repaired SSB from a Service repair shop (SSB
repair on component level) implies the reset of the NVM on the 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.
SSB Identification
SSB’s
of this chassis are identified by a “715” code on the SSB.
715Axxxx-Nnn-MMM-OOOO
• 715 main category, Printed Wiring Board
• Axxxx sub category, sequential coding number
• Nnn Version code
• N Development number
• nn Production number
• MMM Mounting variation code
• OOOO Optional variation code
Make sure when replacing an SSB the SSB identification codes match the replacement
board.
Power Supply Unit
All
power supplies are a block box for Service. When defective, a new board must be
ordered and defective one must be returned,unless the main fuse of the board is
broken. Always replace a defective fuse with one with the correct
specifications. This part is available in the regular market.
Consult the Philips Service web portal for the order codes of the boards.
Important delta’s with the TPS14.1A LA classis platform are:
• New power architecture for LED backlight
• “Boost” signal is now a PWM-signal + continuous variable.
The control signals are:
• Stand-by
• Lamp “on/off”
• DIM (PWM) (not for PSDL)
In this manual, no detailed information is available because of design
protection issues.
The output voltages to the chassis are:
• +4V7-STANDBY (Stand-by mode only)
• +12V (on-mode)
• +Vsnd (+24V) (audio power) (on-mode)
• +24V (bolt-on power) (on-mode)
Output to the display; in
case of
- IPB: High voltage to the LCD panel
- PSL and PSLS (LED-driver outputs)
- PSDL (high frequent) AC-current.
Diversity
The
diversity in power supply units is mainly determined by the diversity in
displays.
The following displays can be distinguished:
• CCFL/EEFL backlight: power board is conventional IPB
• LED backlight:
- side-view LED without scanning: PSL power board
- side-view LED with scanning: PSLS power board
- direct-view LED without 2D-dimming: PSL power board
- direct-view LED with 2D-dimming: PSDL power board.
PSL stands for Power Supply with integrated LED-drivers.
PSLS stands for a Power Supply with integrated LED-drivers
with added Scanning functionality (added microcontroller).
PSDL stands for a Power Supply for Direct-view LED
backlight with 2D-dimming.
DC/DC Converters
The
on-board DC/DC converters deliver the following voltages (depending on set
execution):
• +5V-STANDBY, permanent voltage for the Stand-by controller
• +3V3-STANDBY, power supply for LED/IR receiver and controls
• +12V, input from the power supply for the panel common (active mode)
• +24V, input from the power supply for the amplifier
• +1V2, from the power supply for the scaler IC MST6931
• +1V8, supply voltage for DDR2 (diagram B03B) • +3V3, general supply voltage
• +3.3V-TUN, supply voltage for tuner
• +3.3V, supply voltage for Headphone AMP
• +5V-USB, input intermediate supply voltage for USB Power
• +3V3 from the power supply for the scaler IC MST6931
A 715G6197 PSU – schematic
A 715G6297 PSU – schematic
