Technical description and composition of the PHILIPS 40PFL3108T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 40PFL3108T / 60
Chassis / Version: TPM10.1E LA
Panel: LTA400HM23 001 SAMSUNG code 182 p / n: 996590004008
T-CON: DLED400S4LV0.1
LED driver (backlight): SSL400_0D5A REV1.0
PWM LED driver: TR10E1
MOSFET LED driver: SF10A400HD
Power Supply (PSU): 715G5246-P03-000-002S CSPM06002 996590002521
PWM Power: SSC9522S (PWM resonant), A6069H (Standby 8pin), R2A20113 (PFC)
MainBoard: 715G5155-M02-002-005K DSM2201S
IC MainBoard: NAND Flash K9F2G08U0C, DRAM NT5CB64M16DP-CF, HDMI TMDS361B, MN88472, STA3818W, MT5135AE
Tuner: ENV57U04D8F 996590004709
Specifications 40PFL3108T
PHILIPS 40PFL3108T
General repair guidelines for TV LCD LED
Repair of all electronic devices, including the PHILIPS 40PFL3108T / 60 TV, it is advisable to start with an external examination of its external and internal elements. In some cases, visible external damage to the elements can suggest the direction of troubleshooting and localization of the defect even before the start of the necessary measurements at the control points of the nodes of electronic circuits. In some cases, faulty elements can be seen with the naked eye, for example, charred resistors or swollen metal-ceramic capacitors, or electrolytic in rectifier filters. Ring cracks formed in the soldered terminals of transformers or heating elements of the circuit are also frequent sources of many malfunctions with a variety of external manifestations.
If the 40PFL3108T TV does not turn on, does not make any sounds when it is turned on, and also no indicators on the front panel light or blink - there is a high probability of a malfunction in the power module. In some cases, only the regulator or power converter of the control processor may be faulty, which is typical for some PHILIPS models. Diagnostics and repair of the common power supply should always begin with a check of 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.
Mos-Fet keys used in switching power supplies (SMPS) rarely fail for no reason to look for when checking other circuit elements. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. The PWM controller chip may also cause a breakdown of the power switch of the converter.
If the PHILIPS 40PFL3108T TV does not have an image, but there is sound, a malfunction in the LED backlight circuits of the LTA400HM23 001 SAMSUNG code 182 996590004008 is possible. It is also necessary to check the operability of the electrolytic capacitors of the BP secondary filter (power supply unit) for an overestimated ESR.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
When trying to detect a break in the LED lines, it should be taken into account that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
In cases of attempts to repair the motherboard 715G5155-M02-002-005K DSM2201S, it is necessary to check the performance of the stabilizers or power converters of its microcircuits and, if possible, update the software (software). BGA chips can in most cases be diagnosed by local heating.
Before replacing the tuner ENV57U04D8F 996590004709, if there is no tuning for the channels, you must first check the supply voltage at its terminals, including the power supply of varicaps (30-33V).
Once again, remind users! Attempts to independently repair a PHILIPS 40PFL3108T TV without the appropriate qualifications and experience can lead to its complete non-repairability!
Typical problems associated with the lack of a PHILIPS 40PFL3108T / 60 image occur due to a problem LED panel LTA400HM23 001 SAMSUNG code 182 996590004008 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. For prevention purposes, it is advisable to duplicate all contact connections between the LED strips !
Service manual and schematic diagram 40PFL3108T/60 Chassis TPM10.1E LA part1, part2, part3
FIRMWARE EEPROM PHILIPS 40PFL3107H/60, Main: 715G5155-M02-002-005K, Panel: LTA400HM23 001 , код 182
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).
PSU Advanced
The 715G5246-P03-000-002S power supply module is made using the Power Factor Correction (PFC) scheme to eliminate multiple AC harmonics introduced into the power supply by the device. The PFC node is a Step-Up Converter based on the R2A20113 PWM controller, which evenly distributes high-frequency pulses of the charging current of the electrolytic capacitor of the rectifier filter of the mains voltage over a period of 50 Hz. The current of its charge in this case will already be determined not by its reactance (usually 10-30 ohms for the network frequency), but by the elements of the converter. As a result, a change in the amplitude of the pulses (envelope) of the current consumption of the converter will repeat the shape and phase of the input sinusoidal voltage. The availability of an increased voltage (about + 380V) in the operating mode on the capacitor of the line filter indicates the serviceability of the PFC node.
The appearance of the power supply
Main features of the PHILIPS 40PFL3108T device:
Installed matrix (LED-panel) LTA400HM23 001 SAMSUNG code 182 p / n: 996590004008.
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 the power elements of the LED driver, keys of the type SF10A400HD are used.
The necessary supply voltages for all nodes of the PHILIPS 40PFL3108T TV are generated by the power supply module 715G5246-P03-000-002S or its analogs using SSC9522S (PWM resonant), A6069H (Standby 8pin), 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 tuner ENV57U04D8F 996590004709 provides the reception of television programs and tuning to channels.
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