Technical description and composition of the PHILIPS 40PFL5507T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 40PFL5507T / 60
Chassis / Version: Q552.4E LA
Panel: LTA400HV04 001 code 396 p / n: 932229092682
LED backlight: 7030L 56LED
T-CON: PH_120PSQBC4LV1.0
LED driver (backlight): integrated into PSU
PWM LED driver: DDA009
Power Supply (PSU): DPS-119AP A 272217190581
PWM Power: DDA010 (Standby), 1608B (PFC), 2QS02G
MainBoard: 313929713562 313929716961 UC219.4 AI1.A
IC MainBoard: TAS5731, SPARTAN-6, RT8293AH (8pin)
Tuner: SUT-RE214AN
Control: 2422 549 90467 YKF309-001, EAD61891001CIH24BZ335
Specifications 40PFL5507T
PHILIPS 40PFL5507T
General repair guidelines for TV LCD LED
Repair of all electronic devices, including the PHILIPS 40PFL5507T / 60 TV, it is advisable to start with an external examination of its external and internal elements. Specific external damage to some elements can sometimes indicate further actions to determine the malfunction of the TV and localization of the defect before the necessary measurements are taken. Electrolytic capacitors of filters with a swollen casing, as well as ring cracks formed in the soldered leads of heating elements, or a layer of coal on burnt resistors sometimes tell the repairman the causes of the malfunction and possible consequences.
Malfunctions of the DPS-119AP A 272217190581 power supply module can be expressed in different ways, for example, the PHILIPS 40PFL5507T does not turn on at all and the control lamps on its front panel do not light up and do not blink, and there are no signs of operability. It should be noted that with the same external manifestations, the processor power regulator (converter) may be faulty. It is advisable to start the troubleshooting of the power supply module by checking the state of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in such a state of breakdown.
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 40PFL5507T does not have an image, but there is sound and the TV is controlled by the remote control, there may be a malfunction in the backlight circuits of the LTA400HV04 001 932229092682 code 396. The LEDs or the power converter - LED driver may be malfunctioning. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to verify the operability of the electrolytic capacitors of the rectifier filter supplying the LED driver, and check the LEDs, connecting obviously known good diagnostics.
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.
A break in the line of LEDs connected in series cannot be detected with a multimeter or tester without disassembling the panel. To open all the transitions, several tens of volts are needed, and it is best to use a current source for such purposes.
Repair of the motherboard UC219.4 AI1.A 313929713562 313929716961 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.
If you suspect a malfunction of the SUT-RE214AN tuner, first of all, you need to make sure that the voltage of the varicaps (30-33V) is present on the corresponding output of the tuner, as well as other voltage supplying it.
Attention to the owners! Attempts at self-repair of the PHILIPS 40PFL5507T TV are not recommended by the manufacturer and can lead to serious negative consequences!
Service manual and schematic diagram 40PFL5507T/60 Chassis Q552.4E LA
PSU -----------> DPS-119AP A Power Supply schematic diagram.
The appearance of MainBoard 313929713562 is shown in the figure below:313929713562
313929713562 can be used in TVs:
PHILIPS 40PFL5507T/60 (Panel LTA400HV04 001 code 396 p/n: 932229092682 ), PHILIPS 40PFL5527T/60 (Panel LTA400HV04 001 code 396 p/n: 932229092682), PHILIPS 46PFL5537T/60 (Panel LTA460HW04).
PSU Advanced
According to the conditions of compliance with modern world standards for household switching power supplies, the DPS-119AP module provides for the use of a Power Factor Correction unit. The PFC circuit is a flyback converter based on the 1608B PWM controller. The reactance of an electrolytic capacitor of a line filter at a frequency of 50-60 Hz is usually not more than 20-30 ohms and its charge directly from the network through open diodes could reach tens of amperes per pulse if no filtering were applied.
As a result of the PFC conversion, an increased voltage on the capacitor (about 380V) cannot directly open the rectifier diodes, on the anode of which the voltage will always be slightly less (about 300V) and then its charging current will always be limited by the elements of the PWM controller. As a result, the envelope of the high-frequency pulses of the consumed current will repeat the shape and phase of the input sinusoidal voltage. The presence of an increased voltage (+ 380V) on the network capacitor indicates the serviceability of the PFC node.
The appearance of the power supply
Main features of the PHILIPS 40PFL5507T device:
Installed matrix (LED panel) LTA400HV04 001 code 396 p / n: 932229092682.
The matrix control uses the Timing Controller (T-CON) PH_120PSQBC4LV1.0.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by the DDA009 PWM controller.
The necessary supply voltages for all nodes of the PHILIPS 40PFL5507T TV are generated by the DPS-119AP power module or its analogs using DDA010 (Standby), 1608B (PFC), 2QS02G microcircuits.
MainBoard - the main board (motherboard) is a module 313929713562, using TAS5731, SPARTAN-6, RT8293AH (8pin) chips and others.
The SUT-RE214AN tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA400HV04
Type: a-Si TFT-LCD, Panel
Diagonal size: 40 inch
Resolution: 1920x1080, FHD
Display Mode: S-PVA, Normally Black, Transmissive
Active Area: 885.6x498.15 mm
Surface: Antiglare (Haze 2%)
Brightness: 400 cd / m²
Contrast Ratio: 5000: 1
Display Colors: 1.07B (8-bit + Hi-FRC), CIE1931 70%
Response Time: 8 (Max.) (G to G)
Frequency: 120Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (4 ch, 10-bit), 92 pins
Voltage: 12.0V