Technical description and composition of the PHILIPS 32PFL4258T TV, type of panel and applicable modules. The composition of the modules.PHILIPS LED
Model: 32PFL4258T / 60
Chassis / Version: TPM10.1E LA
Panel: TPT315B5-HVN01 REV.S210E
LED driver (backlight): integrated into PSU
Power Supply (PSU): 715G5793-P02-000-002M
PWM Power: PF6200, NR111D
MainBoard: 715G5713-M0F-000-005K
IC MainBoard: CPU: MT5580MPOI; DRAM: H5TQ2G83DFR; NAND Flash: TC58NVG2S3ETAI0; SOUND: STA3818
Tuner: TDSY-G230D
Specifications 32PFL4258T
PHILIPS 32PFL4258T
General repair guidelines for TV LCD LED
Possible malfunctions
- The PHILIPS 32PFL4258T TV does not turn on, does not respond to the remote control and control panel buttons, the indicators do not light up and do not blink.
Typically, with such manifestations, the defect is caused by faulty elements in the main power module 715G5793-P02-000-002M. It is necessary to measure its output supply voltages, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for the probability of breakdown in PN semiconductor junctions.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during a short circuit in the elements of the primary circuit, the mains fuse usually 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 PF6200, NR111D microcircuits are usually checked by replacing with new, 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.
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 check 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
- The indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the 715G5713-M0F-000-005K 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). 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: MT5580MPOI; DRAM: H5TQ2G83DFR; NAND Flash: TC58NVG2S3ETAI0; SOUND: STA3818 and other possible malfunctioning components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
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 conclusions. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
Attention! For users and owners of 32PFL4258T TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
Service manual and schematic diagram 32PFL4258T/60 Chassis TPM10.1E LA part1, part2, part3
The appearance of MainBoard 715G5713-M0F-000-005K is shown in the figure below:715G5713-M0F-000-005K
715G5713-M0F-000-005K can be used in TVs:
PHILIPS 39PFL3208T/60 (Panel TPT390J1-HJ1L02), PHILIPS 40PFL4418T/60 (Panel LTA400HF30), PHILIPS 40PFL4508T/60 (Panel LTA400HF30 001 SAMSUNG code 186 p/n: 99659004071), PHILIPS 40PFL4528T/60 (Panel LTA400HF30), PHILIPS 32PFL4258T/60 (Panel TPT315B5-HVN01 REV.S210E), PHILIPS 32PFL3258T/60 (Panel TPT315B5-EUJFFA REV:S1A).
The appearance of the power supply
Key Features of PHILIPS 32PFL4258T:
Installed matrix (LED panel) TPT315B5-HVN01 REV.S210E.
To power the backlight LEDs, a converter is used, combined with a power supply.
The necessary supply voltages for all nodes of the PHILIPS 32PFL4258T TV are generated by the 715G5793-P02-000-002M power supply module, or its analogs using PF6200, NR111D microcircuits.
MainBoard - the main board (motherboard) is a 715G5713-M0F-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.