Technical description and composition of the PHILIPS 40PFL8007T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 40PFL8007T / 12
Chassis / Version: QFU1.1E LA
Panel: LTA400HL15
LED backlight: GWA7.820.739-2.PCB 272217190721
LED driver (backlight): integrated into PSU
PWM LED driver: 0Z9909TN x 2, LM358G
Power Supply (PSU): FSP163-4FS01 2722 171 90677 REV: 01
PWM Power: FSB127H (3.3V Standby. 0V in slave mode), FAN7930C (PFC), SSC9522S (PWM resonant)
MainBoard: 310431365554 310432869193
IC MainBoard: CPU: FUSION240; NAND Flash: 29F8G08ABABA; DRAM: H5TQ2G63BFR; SOUND: TAS5731P1; SPI Flash: M25P05-AVMN6; EEPROM: M24C64-WDW6
Tuner: SUT-RE214AN
Specifications 40PFL8007T
PHILIPS 40PFL8007T
General repair guidelines for TV LCD LED
In the absence of any signs of operability, when the PHILIPS 40PFL8007T does not turn on and does not signal anything with the control lights on the panel, there is a possibility of a malfunction of the power module FSP163-4FS01 2722 171 90677 REV: 01 of the TV. When diagnosing and repairing the power supply, after replacing the swollen capacitors of the secondary rectifier filters (if any), you must first check the mains fuse. When it is broken, the power elements of transistors and rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors in switching power supplies (SMPS) fail for no reason that should be sought by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, or dried electrolytic capacitors or dangling primary resistors BP circuits involved in the stabilization process. In this case, all semiconductor elements of the binding of the FSB127H PWM regulator chip (3.3V Standby. 0V in slave mode), FAN7930C (PFC), SSC9522S (PWM resonant), which it is desirable to check by replacement, are subject to verification.
If the PHILIPS 40PFL8007T TV does not have an image and there is sound, a malfunction in the backlight circuits of the LTA400HL15 LED panel is likely.
A malfunction in the backlight circuits often occurs due to an open in the power circuit of the LED lines. It is necessary to disassemble the panel and check the LEDs themselves, the soldering of their conclusions, as well as the reliability of the connections in the connectors and the soldering of the conclusions of the connectors.
To check the health in the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can test each LED individually with a simple Chinese multimeter (powered by 9 volts) in the P-N-junction test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. A zener diode PN junction indirectly indicates a LED-a
Repair of the motherboard 310431365554 310432869193 must begin with the diagnosis and verification of all linear stabilizers and power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM.
In cases of complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, sometimes it may be necessary to replace its CPU chips: FUSION240; NAND Flash: 29F8G08ABABA; DRAM: H5TQ2G63BFR; SOUND: TAS5731P1; SPI Flash: M25P05-AVMN6; EEPROM: M24C64-WDW6 and other possible malfunctioning components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Before changing the SUT-RE214AN tuner, if it is not possible to tune to television channels, make sure that there are supply voltages that must be measured at the corresponding tuner pins and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
Attention to users! Self-repair of a PHILIPS 40PFL8007T TV without the appropriate qualifications and experience can lead to its complete non-repairability!
Service manual and schematic diagram 40PFL8007T/12 Chassis QFU1.1E LA
FOR MODELS: 40PFL7007H/12, 40PFL7007K/12, 40PFL7007T/12, 40PFL8007K/12, 40PFL8007T/12, 42PFL6907H/12, 42PFL6907K/12, 42PFL6907T/12, 46PFL7007H/12, 46PFL7007K/12, 46PFL7007T/12, 46PFL8007K/12, 46PFL8007T/12, 46PFL9707S/12, 46PFL9707T/12, 47PFL6907H/12, 47PFL6907K/12, 47PFL6907T/12, 55PFL7007H/12, 55PFL7007K/12, 55PFL7007T/12, 55PFL8007K/12, 55PFL8007T/12, 60PFL9607S/12, 60PFL9607T/12.
The appearance of MainBoard 310431365554 is shown in the figure below:310431365554
310431365554 can be used in TVs:
PHILIPS 40PFL7007T/12 (Panel LTA400HL15 code 003), PHILIPS 42PFL6907T/12 (Panel LC420EUF-PEF1 code 413), PHILIPS 46PFL8007T/12 (Panel LTA460HQ17 (SMGK) B p/n: 932229485682), PHILIPS 47PFL6907T/12 (Panel LC470EUF PEF1 code 414), PHILIPS 55PFL8007T/12 (Panel LTA550HQ19 code 325 p/n: 932229486682), PHILIPS 46PFL7007T/12 46PFL7007K/12 (Panel LTA460HQ17 ), PHILIPS 40PFL8007T/12 (Panel LTA400HL15), PHILIPS 46PFL9707T/12 (Panel LK460DL), PHILIPS 55PFL7007T/12 (Panel LTA550HQ19).
PSU Advanced
According to the conditions of compliance with modern world standards for household switching power supplies, the FSP163-4FS01 module provides for the use of a Power Factor Correction unit. The PFC circuit is a flyback converter based on the FAN7930C 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 was 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 40PFL8007T device:
Installed matrix (LED-panel) LTA400HL15.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by a PWM controller 0Z9909TN x 2, LM358G.
The necessary supply voltages for all nodes of the PHILIPS 40PFL8007T TV are generated by the FSP163-4FS01 power module or its analogs using the FSB127H (3.3V Standby. 0V microchips in slave mode), FAN7930C (PFC), SSC9522S (PWM resonant) microcircuits.
MainBoard - the main board (motherboard) is a module 310431365554, using CPU chips: FUSION240; NAND Flash: 29F8G08ABABA; DRAM: H5TQ2G63BFR; SOUND: TAS5731P1; SPI Flash: M25P05-AVMN6; EEPROM: M24C64-WDW6 and others.
The SUT-RE214AN tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA400HL15
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: Glare (Haze 0%), Hard coating (2H)
Brightness: 450 cd / m²
Contrast Ratio: 5000: 1
Display Colors: 1.07B (8-bit + Dithering), CIE1931 70%
Response Time: 8 (G to G)
Frequency: 240Hz
Lamp Type: WLED Without Driver
Signal Interface: V-by-One 8 lane, 51 pins
Voltage: 12.0V