Technical description and composition of the PHILIPS 40PFL3208T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 40PFL3208T / 60
Chassis / Version: TPM10.1E LA
Panel: LTA400HM23 code 197
LED backlight: SSL400_WP01 SUS400A79_4LED_A / B-TYPE_REV.1_120712
T-CON: DLED400S4LV0.1
LED driver (backlight): SSL400_0D5A REV1.0
PWM LED driver: TR10E1
MOSFET LED driver: SF10A400HD, SM1F02N
Power Supply (PSU): 715G5246-P04-000-002S
PWM Power: SSC9522S (PWM resonant), A6069H (Standby 8pin), R2A20113 (PFC)
MOSFET Power: 24NM60 (PFC), TF12N50
MainBoard: 715G5713-M0F-000-005X
IC MainBoard: 54519 (4x4) DC-DC, STA3818W, AO 4421, H5TQ2G83DFR
Tuner: TDSY-G230D
Control: IR: 715G5230-R02-000-004S
Specifications 40PFL3208T
PHILIPS 40PFL3208T
General repair guidelines for TV LCD LED
PHILIPS 40PFL3208T / 60, like other televisions, it is advisable to start repairing with a careful examination of the external and internal elements and modules. According to some external signs of a change in the state of some elements, it is sometimes possible to make assumptions about the nature of the defect, as well as determine the further direction of the troubleshooting. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a significant clue in the assumptions about the causes and consequences of the malfunction.
In cases when the PHILIPS 40PFL3208T TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink, and there are no sounds and no signs of operability when turning on, the power supply module 715G5246-P04-000 is most likely faulty -002S or there is no processor power on the motherboard (a typical defect of some PHILIPS TVs). 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.
In most cases, key breakdowns in switching power supplies (SMPS) do not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective PWM A6069H (8) from the manufacturer.
Sometimes the PHILIPS 40PFL3208T TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the converter for the panel backlight LEDs code 197, or a break in the LED circuit is possible. In such cases, first of all, it is necessary to verify the serviceability of all the electrolytic capacitors of the filter by supplying the LED driver itself, including in the power supply unit (power supply unit).
Often in the absence of backlighting, disassembling the panel is required. It is necessary to check the serviceability of the transitions of the LEDs, as well as the reliability of the contact connections in the rulers and connectors.
To detect a break in the LED lines without disassembling the panel, a current source is required. It is impossible to open transitions connected in series with a simple multimeter; voltage of several tens of volts is necessary.
Repair of the motherboard 715G5713-M0F-000-005X must 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.
When repairing an MB board, you need to check its components 54519 (4x4) DC-DC, STA3818W, AO 4421,. Defective items should be replaced. If BGA chips are installed, their malfunction is usually localized by heating. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
If the TV works normally from external devices, but does not tune into television channels, the TDSY-G230D tuner may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals, as well as the power supply of varicaps (30-33V).
Attention to users! Do-it-yourself repair of the PHILIPS 40PFL3208T TV without the appropriate qualifications and experience can lead to its complete non-repairability!
Typical problems associated with the lack of a PHILIPS 40PFL3208T / 60 image occur due to the problematic LED panel LTA400HM23 code 197 from Samsung.
External manifestations: no image, sometimes appears, but disappears again.
In most of these cases, panel repair is possible and widely practiced by repairmen. Faulty LEDs must be replaced and duplicated contacts duplicated by conductors. In order to prevent, it is advisable to duplicate all contact compounds waiting for LED strips !
Service manual and schematic diagram 40PFL3208T/60 Chassis TPM10.1E LA part1, part2, part3
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).
PSU Advanced
According to the conditions of compliance with modern world standards for household switching power supplies, the 715G5246-P04-000-002S module provides for the use of the Power Factor Correction unit. The PFC circuit is a flyback converter based on the R2A20113 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 40PFL3208T device:
Installed matrix (LED-panel) LTA400HM23 code 197.
The matrix control uses the Timing Controller (T-CON) DLED400S4LV0.1.
The LED driver SSL400_0D5A is used to power the backlight LEDs, it is controlled by the TR10E1 PWM controller. As power elements of the LED driver, keys of the type SF10A400HD, SM1F02N are used.
The necessary supply voltages for all nodes of the PHILIPS 40PFL3208T TV are generated by the 715G5246-P04-000-002S power supply module or its analogs using SSC9522S (PWM resonant), A6069H (Standby 8pin), R2A20113 (PFC) microcircuits and 24NM60 (PFC) power switches ), TF12N50.
MainBoard - the main board (motherboard) is a module 715G5713-M0F-000-005X, using chips 54519 (4x4) DC-DC, STA3818W, AO 4421, H5TQ2G83DFR and others.
The TDSY-G230D tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA400HM23
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 5.5%), Hard coating (2H)
Brightness: 300 cd / m²
Contrast Ratio: 5000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 70%
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V