Technical description and composition of the PHILIPS 47PFL4398T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 47PFL4398T / 60
Chassis / Version: TPN10.1ELA
Panel: TPT470H1-EUJEFK
LED backlight: IC-B-TBAC470286R
T-CON: LC470DUE-SFR1
LED driver (backlight): integrated into PSU
PWM LED driver: PF7903BS
MOSFET LED driver: AOTF4126
Power Supply (PSU): 715G6163-P0F-000-0020
PWM Power: LD7591T (PFC), SSC1S311 (PWM)
MOSFET Power: STF24NM65N, TK15A60U
MainBoard: 715G6094-M0D-000-004K
IC MainBoard: NT72567BG, K9F1G08U0D, 24C128, STA381BWTR
Tuner: ST03CS-2-E
Specifications 47PFL4398T
PHILIPS 47PFL4398T
General repair guidelines for TV LCD LED
Possible manifestations of defects
- The PHILIPS 47PFL4398T does not turn on. There are no signs of operability. The indicators on the front panel do not light or flash, the TV does not respond to the remote control and control buttons.
With similar manifestations, in some cases, the 715G6163-P0F-000-0020 power module turns out to be faulty. It is necessary to measure its output voltages and, if they are absent, check the serviceability of power switches (STF24NM65N, TK15A60U) and rectifier diodes in the converters for possible breakdown.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the mains fuse and, less often, the current sensor at the source of the key are most often cut off.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM controllers LD7591T (PFC), SSC1S311 (PWM), in the absence of visible damage or explicit short-circuit between the terminals, are checked by replacing with new, or obviously working.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
In most of these cases, a malfunction is detected in the nodes and backlight elements of the LED panel. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
When trying to detect a break in the LED lines, it should be taken into account that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
- The indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the 715G6094-M0D-000-004K motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). In some cases, to repair the MB board (SSB), it may be necessary to replace the chips - NT72567BG, K9F1G08U0D, 24C128, STA381BWTR with new or obviously good ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
Before replacing the ST03CS-2-E tuner, if there is no tuning for the channels, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via I2C
Attention TV owners! Attempts at self-repair of PHILIPS 47PFL4398T are not recommended by the manufacturer and can lead to serious negative consequences!
Service manual and schematic diagram PHILIPS 47PFL4398T Chassis TPN10.1ELA
The appearance of the MainBoard 715G6094-M0D-000-004K is shown in the figure below:715G6094-M0D-000-004K
715G6094-M0D-000-004K can be used in TVs:
PHILIPS 47PFL3188T/60 (Panel TPT470H1-DUJFFE code 011 p/n: 99650008033), PHILIPS 47PFL3198T/60 (Panel TPT470H1-DUJFFE REV:S1A ).
The appearance of the power supply
Main features of the PHILIPS 47PFL4398T device:
The matrix (LED panel) TPT470H1-EUJEFK is installed.
The matrix control uses the Timing Controller (T-CON) LC470DUE-SFR1.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the PF7903BS PWM controller. As power elements of the LED driver, keys of the AOTF4126 type are used.
The necessary supply voltages for all nodes of the PHILIPS 47PFL4398T TV are generated by the 715G6163-P0F-000-0020 power module or its analogs using LD7591T (PFC), SSC1S311 (PWM) microcircuits and power switches of the STF24NM65N, TK15A60U type.
MainBoard - the main board (motherboard) is a module 715G6094-M0D-000-004K, using chips NT72567BG, K9F1G08U0D, 24C128, STA381BWTR and others.
The ST03CS-2-E tuner provides television reception and channel tuning.