Technical description and composition of the PHILIPS 39PFL3208T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 39PFL3208T / 60
Chassis / Version: TPM10.1E LA
Panel: TPT390J1-HJ1L02
LED driver (backlight): integrated into PSU
PWM LED driver: PF7900S (PWM), PF7700A (Current Balance)
MOSFET LED driver: AOTF4126
Power Supply (PSU): 715G5792-P02-000-002H 996590004017
PWM Power: SSC1S311, LD7591T (PFC)
MOSFET Power: TK15A60U (PFC), TK11A65D
MainBoard: 715G5713-M0F-000-005K
IC MainBoard: DRAM: H5TQ2G83DFR; NAND Flash: TC58NVG2S3ETAI0; SOUND: STA3818; U701 + 1.5v. U705.U706 + 3.3v
Tuner: TDSY-G230D
Specifications 39PFL3208T
PHILIPS 39PFL3208T
General repair guidelines for TV LCD LED
Repair of all electronic devices, including the PHILIPS 39PFL3208T / 60 TV, it is advisable to start with an external examination of its external and internal elements. Often, by the external signs and nature of the damage to the elements, it becomes possible to draw some conclusions and determine a further algorithm for finding a defect before making the necessary measurements at control points. If charred resistors, swollen electrolytic or cermet capacitors, ring cracks in the solders of the terminals of transformers or heating elements are found, it is advisable to establish the causes and consequences of the malfunction that has arisen, as well as to check the connected elements and assemblies.
In cases when the PHILIPS 39PFL3208T TV does not turn on, does not respond to the remote control and buttons, any indicators on the front panel do not light up or blink, and there are no sounds and no signs of operability when turning on, the power supply module 715G5792-P02-000 is most likely faulty -002H or there is no processor power on the motherboard (a typical defect of some PHILIPS TVs). When repairing the power supply, it is advisable to start the diagnostics by checking the mains fuse and the electrolytic capacitors of the filters of the converter secondary rectifiers. In the event of a fuse breaking, the reason should be sought in the power semiconductor elements of the pulse converter of the main power supply. First of all, it is necessary to check the diodes of the bridge of the rectifier of the mains voltage and the power switch (s) of the converter.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If the PHILIPS 39PFL3208T TV does not have an image, but there is sound, a malfunction in the LED backlight circuits of the TPT390J1-HJ1L02 panel is likely. It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the PSU (power supply) for an overstated ESR.
In most cases of lack of backlight, it becomes necessary to disassemble the panel in order to check the LEDs, connectors, loops and all contact connections. If one or several LEDs does not work in one line, therefore, they are broken and should be replaced.
It is impossible to check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source.
When trying to repair the motherboard, you should first check the serviceability of linear stabilizers or power converters of microcircuits and, if necessary, update the software (software).
Owners and users of the PHILIPS 39PFL3208T TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
SCHEMATIC MANUAL ---------------------> Chassis TPM10.1E LA part1, part2, part3
The appearance of MainBoard 715G5713-M0F-000-005K is shown in the figure below:715G5713-M0F-000-005K
715G5713-M0F-000-005K can be used in TVs:
PHILIPS 39PFL3208T/60 (Panel TPT390J1-HJ1L02), PHILIPS 40PFL4418T/60 (Panel LTA400HF30), PHILIPS 40PFL4508T/60 (Panel LTA400HF30 001 SAMSUNG code 186 p/n: 99659004071), PHILIPS 40PFL4528T/60 (Panel LTA400HF30), PHILIPS 32PFL4258T/60 (Panel TPT315B5-HVN01 REV.S210E), PHILIPS 32PFL3258T/60 (Panel TPT315B5-EUJFFA REV:S1A).
PSU Advanced
The 39PFL3208T / 60 model uses a 715G5792-P02-000-002H power supply unit using the PFC (Power Factor Correction) node - an active filter of higher harmonics of the consumed current. In fact, it is a boost converter based on the LD7591T PWM controller, which eliminates the charge current of the electrolytic capacitor of the rectifier filter directly from the network through open diodes when its charging current is determined by its reactance.
As a result of the operation of the converter, the envelope of the high-frequency pulses of the input current of the converter will repeat the shape and phase of the input voltage. The health of the PFC node can be indirectly judged by the presence of an increased constant voltage (about + 380V) on the capacitor of the rectifier network in operating mode.
The appearance of the power supply
Main features of the PHILIPS 39PFL3208T device:
The matrix (LED panel) TPT390J1-HJ1L02 is installed.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by a PF7900S (PWM) PWM controller, PF7700A (Current Balance). As power elements of the LED driver, keys of the AOTF4126 type are used.
The necessary supply voltages for all nodes of the PHILIPS 39PFL3208T TV are generated by the 715G5792-P02-000-002H power supply module or its analogs using SSC1S311, LD7591T (PFC) microcircuits and TK15A60U (PFC), TK11A65D type power switches.
MainBoard - the main board (motherboard) is a 715G5713-M0F-000-005K module, using DRAM chips: H5TQ2G83DFR; NAND Flash: TC58NVG2S3ETAI0; SOUND: STA3818; U701 + 1.5v. U705.U706 + 3.3v and others.
The TDSY-G230D tuner provides TV reception and channel tuning.