Technical description and composition of the PHILIPS 24PFL4228T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 24PFL4228T / 60
Chassis / Version: TPM10.3E LA
Panel: TPM236H3-BJ1L02 code 206
LED driver (backlight): integrated into PSU
PWM LED driver: PF7001S
MOSFET LED driver: AO4482L
Power Supply (PSU): 715G5309-P01-W24-002S
PWM Power: LD7750RGR
MOSFET Power: TK6A65D
MainBoard: 715G5713-M0F-000-005X
IC MainBoard: CPU: MT5580MPOI; DRAM: NT5CB256M8GN; NAND Flash: TC58NVG2S0FTAI0; EEPROM: CAT24C128WI; SOUND: STA381BWTR;
Tuner: TDSY-G230D
Technical Specifications 24PFL4228T
PHILIPS 24PFL4228T
General repair guidelines for TV LCD LED
It is advisable to start the repair of the PHILIPS 24PFL4228T / 60 TV with a careful external examination of both internal and external elements. Visible damage to elements can sometimes indicate the direction of the search for a defect even before the necessary measurements are taken. Electrolytic capacitors of filters with a swollen body, as well as ring cracks or a layer of coal on burned-out resistors formed in the soldered terminals of the heating elements, sometimes tell the repairman the causes of the malfunction and possible consequences.
In the case when the 24PFL4228T does not turn on, does not respond to the remote control and buttons on the front panel, does not blink bulbs and does not show any signs of operability, the power supply module 715G 5309-p01-w24-002s is probably faulty in this case. If it is serviceable with such manifestations, it is necessary to check the stabilizer (converter) of the processor power supply on the motherboard. Diagnostics and repair of the general power supply unit should always begin by checking the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
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 24PFL4228T does not have an image, but there is sound, the backlighting LEDs on the TPM236H3 BJ1L02 code 206 or their power converter may malfunction. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working.
A malfunction in the backlight circuits often occurs due to a break in the power supply lines of the LED lines. It requires disassembling the panel and checking the LEDs themselves, the rations of their terminals, as well as the reliability of the connections in the connectors and rations of the terminals.
It should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels with a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required.
Repair of the motherboard QDCB02R1640002 / D7HBARS 1323 705TQDSCK0601T should begin with the diagnosis and verification of all linear stabilizers or power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM.
Attention! For users and owners of 24PFL4228T TVs who do not have the appropriate qualifications, knowledge and experience, we strongly recommend against attempting self-repair in order to avoid negative consequences that could lead to complete non-serviceability of the device.
SCHEMATIC MANUAL ---------------> PHILIPS CHASSIS TPM10.3E LA; MODEL: 22PFL4008T/60.
TPM10.3E LA; 22PFL4008H/12, 22PFL4008K/12, 22PFL4008T/12, 22PFL4008T/60, 22PFL4208H/12, 22PFL4208K/12, 22PFL4208T/12, 22PFL4208T/60, 24PFL4008H/12, 24PFL4008K/12, 24PFL4028H/12, 24PFL4208H/12, 24PFL4208K/12, 24PFL4208T/12, 24PFL4228H/12, 24PFL4228K/12, 24PFL4228T/12, 24PFL4228T/60
The appearance of the MainBoard 715G5713-M0F-000-005X is shown in the figure below:715G5713-M0F-000-005X
715G5713-M0F-000-005X can be used in TVs:
PHILIPS 22PFL4208T/60 (Panel TPM215HW01-HGJL02 code 200 p/n: 996590005301), PHILIPS 24PFL4228T/60 (Panel TPM236H3-BJ1L02 code 206), PHILIPS 40PFL3208T/60 (Panel LTA400HM23 code 197).
The appearance of the power supply
Main features of the PHILIPS 24PFL4228T device:
Installed matrix (LED panel) TPM236H3-BJ1L02 code 206.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the PF7001S PWM controller. As power elements of the LED driver, keys of the AO4482L type are used.
The necessary supply voltages for all nodes of the PHILIPS 24PFL4228T TV are generated by the 715G5309-P01-W24-002S power module, or its analogs using LD7750RGR microcircuits and TK6A65D type power switches.
MainBoard - the main board (motherboard) is a 715G5713-M0F-000-005X module, using CPU chips: MT5580MPOI; DRAM: NT5CB256M8GN; NAND Flash: TC58NVG2S0FTAI0; EEPROM: CAT24C128WI; SOUND: STA381BWTR; and others.
The TDSY-G230D tuner provides TV reception and channel tuning.
