Technical description and composition of the PHILIPS 42PFL3008T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 42PFL3008T / 60
Chassis / Version: TPM10.1E LA
Panel: TPT420H2-HVN04 code 194
LED backlight: AD080 (66) -079 EVERLIGHT LBM420P0601-CA-3 (HF) (0), LBM420P0501-CB-4 (HF) (0)
T-CON: 50T10-C00 T500HVD02.0 CTRL BD
LED driver (backlight): integrated into PSU
PWM LED driver: PF7900S, PF7700A
Power Supply (PSU): 715G5778-P02-000-002R
PWM Power: SSC9522S (PWM Resonant), R2A20133ESP (PFC), A6069H (Standby)
MainBoard: 715G5713-M0E-000-005K
IC MainBoard: CPU: MT5580MPOI; DRAM: H5TQ2G83DFR; NAND Flash: TC58NVG2S3ETAI0; SOUND: STA3818
Tuner: TDSY-G230D
Control: IR: 715G5772-R01-000-004S
Specifications 42PFL3008T
PHILIPS 42PFL3008T
General repair guidelines for TV LCD LED
TV PHILIPS 42PFL3008T / 60, like many other electronic devices, it is advisable to start repairing by inspecting all external and internal elements. 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. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
In the absence of any signs of operability, when the PHILIPS 42PFL3008T 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 TV power module. With the same manifestations, the power regulator of the control processor on the motherboard 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.
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 42PFL3008T 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 code panel 194. LEDs or a 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.
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.
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.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair only to professionals with sufficient experience in the field of electronic equipment repair.
SCHEMATIC MANUAL -------------> 42PFL3008T/60 Chassis TPM10.1E LA part1, part2, part3
The appearance of the MainBoard 715G5713-M0E-000-005K is shown in the figure below:715G5713-M0E-000-005K
715G5713-M0E-000-005K can be used in TVs:
PHILIPS 39PFL4208T/60 (Panel TPT390J1-HJ1L02 code 199), PHILIPS 42PFL3008T/60 (Panel TPT420H2-HVN04 code 194), PHILIPS 42PFL3208T/60 (Panel TPT420H2-HVN04 Rev080C code 194), PHILIPS 42PFL5028T/60 (Panel LC420EUE (FF)(F1) code 190), PHILIPS 50PFL5038T/60 (Panel LC500EUE FFF1).
PSU Advanced
The 42PFL3008T / 60 TV is equipped with a 715G5778-P02-000-002R power supply module using the PFC (Power Factor Correction) circuit acting as an active filter to eliminate the higher harmonic components of the current consumption. The boost converter based on the R2A20133ESP PWM controller does not allow the input rectifier filter's electrolytic capacitor to be connected to the network directly through open diodes when the charge current determines its reactance (about 15-30 ohms at a frequency of 50 Hz). As a result of the conversion, the charging current of the capacitor will be determined in such a way that the envelope of the high-frequency pulses of the input current will repeat the phase and shape of the sine wave of the input voltage. The health check of the PFC unit is carried out by measuring the DC voltage on the capacitor of the rectifier network. In operating mode, it should be around 380V, in standby approximately 300V.
The appearance of the power supply
Key Features of PHILIPS 42PFL3008T:
Installed matrix (LED panel) TPT420H2-HVN04 code 194.
The matrix control uses the Timing Controller (T-CON) 50T10-C00.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by the PF7900S, PF7700A PWM controller.
The necessary supply voltages for all nodes of the PHILIPS 42PFL3008T TV are generated by the 715G5778-P02-000-002R power supply module or its analogs using SSC9522S (PWM Resonant), R2A20133ESP (PFC), A6069H (Standby) microcircuits.
MainBoard - the main board (motherboard) is a 715G5713-M0E-000-005K module, using CPU chips: MT5580MPOI; DRAM: H5TQ2G83DFR; NAND Flash: TC58NVG2S3ETAI0; SOUND: STA3818 and others.
The TDSY-G230D tuner provides TV reception and channel tuning.