Technical description and composition of the PHILIPS 40PFL4308T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 40PFL4308T / 60
Chassis / Version: TPM10.1E LA
Panel: LTA400HM23
T-CON: DLED400S4LV0.1; LQF6041T0B-Q1, DC / DC SM4152, I7939A
LED driver (backlight): SSL400-0D5A Rev: 1.0
PWM LED driver: TR10E1
MOSFET LED driver: SF10A400HD, SM1F02N
Power Supply (PSU): 715G5246-P03-000-002S
PWM Power: SSC9522S, A6069H (Standby), R2A20113 (PFC)
MainBoard: 715G5155-M02-002-005K Ver: A
IC MainBoard: NAND Flash K9F2G08U0C, DRAM NT5CB64M16DP-CF, HDMI TMDS361B, MN88472, STA3818W, MT5135AE
Tuner: ENV57U04D8F
Control: IR: 715G5762-R01-000-004S
Specifications 40PFL4308T
PHILIPS 40PFL4308T
General repair guidelines for TV LCD LED
Possible malfunctions
- The PHILIPS 40PFL4308T TV does not turn on, does not respond to the remote control and the control panel buttons, the indicators do not light or flash.
Typically, with such manifestations, the defect is caused by faulty elements in the main power module 715G5246-P03-000-002S. It is necessary to measure its output voltages and, in case of their absence, check the serviceability of power switches and rectifier diodes in the converters for possible breakdown.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short-circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the main fuse and, less often, the current sensor at the source of the key most often breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM microcircuits (PWM) SSC9522S, A6069H (Standby), R2A20113 (PFC) are usually checked by replacing with new ones, or obviously working.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
A malfunction is usually most likely in these cases at the backlight nodes of the display matrix. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
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. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters, as a rule, light up a single 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as a health indicator. In faulty LEDs, the zener diode will either be cut off or broken into short-circuit.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the 715G5155-M02-002-005K motherboard should begin by checking the stabilizers and power converters needed to power the microcircuits and matrix. If necessary, update or replace the software (software). Often, the MB (SSB) card needs to be replaced in case of complex faults that are difficult to detect. When trying to repair, you should check its elements - NAND Flash K9F2G08U0C, DRAM NT5CB64M16DP-CF, HDMI TMDS361B, MN88472, STA3818W, MT5135AE and replace the failed chips with new ones. Some malfunctions may be due to the use of BGA soldering technologies in modern Main Board technologies. Typically, such defects are detected by local heating of the chip.
The malfunction of the tuner ENV57U04D8F is established after checking the software and all the supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be controlled by an oscilloscope.
Attention to users! Self-repair of a PHILIPS 40PFL4308T TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!
Typical problems associated with the lack of a PHILIPS 40PFL4308T / 60 image occur due to Samsung's problematic LTA400HM23 LED panel.
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. For prevention purposes, it is advisable to duplicate all contact connections between the LED strips.
Service manual and schematic diagram: Chassis TPM10.1E LA part1, part2, part3
MODEL PHILIPS 40PFL4308T/60 TPM10.1E LA:
Panel: LTA400HF30; T-con 13NNB_SQ60VAMB4C4LV0.1;
LED-Driver: 715G5787-P02-000-002S;
Led Backlight: LJ97-04425A LJ07-01127A, SAMSUNG 2013SLS40 7030NNB 54 REV1.0
PSU: 715G5792-P03-000-002M
Appearance of MainBoard 715G5155-M02-002-005K is shown in the figure below:715G5155-M02-002-005K
715G5155-M02-002-005K_PCB
715G5155-M02-002-005K can be used in TVs:
PHILIPS 40PFL3107H/60 (Panel LTA400HM23 001 code 182), PHILIPS 40PFL3108T/60 (Panel LTA400HM23 001 SAMSUNG code 182 p/n: 996590004008), PHILIPS 40PFL4308T/60 (Panel LTA400HM23), PHILIPS 26PFL3207H/12 (Panel TPT260B2-L03 Rev. C1C).
The appearance of the power supply
Main features of the PHILIPS 40PFL4308T device:
Installed matrix (LED-panel) LTA400HM23.
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 40PFL4308T TV are generated by the 715G5246-P03-000-002S power module, or its analogs using SSC9522S, A6069H (Standby), R2A20113 (PFC) microcircuits.
MainBoard - the main board (motherboard) is a 715G5155-M02-002-005K module using NAND Flash chips K9F2G08U0C, DRAM NT5CB64M16DP-CF, HDMI TMDS361B, MN88472, STA3818W, MT5135AE and others.
The ENV57U04D8F 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
