Technical description and composition of the PHILIPS 48PFS8109 TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 48PFS8109 / 60
Chassis / Version: QV14.1E LA
Panel: TPT480LS-HJ03 REV: SC1C
LED backlight: TPGE480SMO-R1
T-CON: 14Y_VNB5_S120P2C4LV0.2
LED driver (backlight): integrated into PSU
PWM LED driver: BD9479FV
MOSFET LED driver: N-FET TO-252
Power Supply (PSU): FSP113-4FS01 S310RLSUP00000011TP
PWM Power: PFC & PWM
MOSFET Power: N-FET TO-220F
MainBoard: 715RLPCB0000000055
IC MainBoard: DE3114-A1, 88DE6010, TDA8296HN, W25Q64FVSSIG, LNBH26LSPQR
Tuner: PE631AN
Specifications 48PFS8109
PHILIPS 48PFS8109
General repair guidelines for TV LCD LED
Possible malfunctions
- The PHILIPS 48PFS8109 TV does not turn on and does not show any signs of operability at all. There is no reaction to the remote control and control buttons from the front panel.
In some of these cases, the main switching power supply, the FSP113-4FS01 module, is faulty. It is necessary to measure its output voltages, and in case of their absence, check the serviceability of power switches (N-FET TO-220F) of converters and rectifier diodes for a short circuit probability.
In case of breakdowns of semiconductors in the secondary circuits, the converter can usually work abnormally in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse often breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM PFC & PWM chips are usually 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.
Usually in such cases, a malfunction is detected in the backlight nodes of the LED panel. The reason can be found in the malfunction of the LEDs, in the violation of the contact connections of the LED strips, or in the provision of their power (LED-driver).
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the 715RLPCB0000000055 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). Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - DE3114-A1, 88DE6010, TDA8296HN, W25Q64FVSSIG, LNBH26LSPQR and replace failed chips with new ones. Some malfunctions may be due to the use of BGA soldering technologies in modern Main Board technologies. Typically, such defects are detected by local heating of the chip.
Before replacing the tuner PE631AN, if there is no tuning to 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
It should be remembered! Attempts to independently repair the PHILIPS 48PFS8109 TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
Service manual and schematic diagram ------------------> PHILIPS 48PFS8109/60 Chassis QV14.1E LA
The appearance of MainBoard 715RLPCB0000000055 is shown in the figure below:
715RLPCB0000000055
The appearance of the power supply
Main features of the PHILIPS 48PFS8109 device:
Installed matrix (LED-panel) TPT480LS-HJ03 REV: SC1C.
The matrix control uses the Timing Controller (T-CON) 14Y_VNB5_S120P2C4LV0.2.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by a BD9479FV PWM controller. As the power elements of the LED driver, keys of the N-FET TO-252 type are used.
The necessary supply voltages for all nodes of the PHILIPS 48PFS8109 television are generated by the FSP113-4FS01 power supply module or its analogs using PFC & PWM microcircuits and N-FET TO-220F type power switches.
MainBoard - the main board (motherboard) is a module 715RLPCB0000000055, using chips DE3114-A1, 88DE6010, TDA8296HN, W25Q64FVSSIG, LNBH26LSPQR and others.
The tuner PE631AN provides TV reception and channel tuning.