Technical description and composition of the PHILIPS 32PFT6549 TV, panel type and modules used. The composition of the modules.PHILIPS LED
Model: 32PFT6549 / 60
Chassis / Version: TPM14.1E LA
Panel: TPT315B5-EUJFFK
LED backlight: CL-32-D508-V5
LED driver (backlight): integrated into PSU
PWM LED driver: PF7903BS
MOSFET LED driver: AOTF4126, AO4486
Power Supply (PSU): 715G6161-P01-W21-002E
PWM Power: LD7752, MP6902DS
MOSFET Power: TK11A65D
MainBoard: 715G6165-M0G-000-005X
IC MainBoard: CPU: MT5580, EEPROM: AT24C128, eMMC: P95L-4KA1-JW963
Tuner: TDSY-G720D
Specifications 32PFT6549
PHILIPS 32PFT6549
General recommendations for TV LCD LED repair
Possible malfunctions
- TV PHILIPS 32PFT6549 does not turn on and does not show any signs of operability at all. No response to the remote control and front panel control buttons.
With similar manifestations, in some cases, the power module 715G6161-P01-W21-002E is faulty. Its output voltages should be measured and, in their absence, the power switches (TK11A65D) and rectifier diodes should be checked for the probability of a short circuit in the converters.
In case of breakdowns in the secondary circuits, the converter, as a rule, can operate in an emergency mode in a short circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse usually breaks off.
Mos-Fet power switches used in switching power supplies sometimes fail due to a malfunction of any other elements that can disable it in the key mode, or create an excess of the maximum permissible key parameters. These can be elements supplying a PWM regulator, frequency setting or damper circuits, or elements of negative feedback in the stabilization circuit. PWM controllers LD7752, MP6902DS, in the absence of visible damage or outright short circuits between the terminals, are checked by replacing them with new ones, or known to be working properly.
- There is no picture, but there is sound and all other TV functions are working. The image sometimes appears for a second immediately after switching on and disappears.
As a rule, in this case, the backlight of the LED panel turns out to be faulty. The reason can sometimes be in the power supply of the LEDs, but more often in their malfunction (breakdown or breakage), sometimes in the violation of the contact connections of the LED strips.
To check the LED strips for breakage without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter; a voltage of the order of several tens of volts is required.
- The TV does not go into operation, does not respond to the remote control. The indicator on the front panel is constantly on or blinking.
Repair or diagnostics of the 715G6165 motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). In cases of attempts to repair the MB (SSB) board, it is necessary to check the serviceability of its elements - CPU: MT5580, EEPROM: AT24C128, eMMC: P95L-4KA1-JW963 which may need to be replaced with new ones. If a BGA processor is installed, there is a possibility that the soldering of the contacts of its pins with the board is broken (detected by warming up).
If PHILIPS 32PFT6549 has no image, but there is sound, often the TPT315B5-EUJFFK display backlight simply does not work. Moreover, in LED TVs, the LEDs inside the panel usually fail, less often the LED driver.
In such cases, you can see a barely noticeable image when the external light hits the screen.
Replacing the LEDs requires disassembling the TPT315B5-EUJFFK LCD panel - a process that requires experience and qualifications from the master. We do not recommend doing such work on your own to the owners of TVs and craftsmen who do not have experience in repairing LCD panels
If there is no image, and the backlight is on, the screen becomes slightly lighter when turned on, and in an open TV you can see light through the holes in the panel case.
In this case, the panel may also be faulty - damage to strips, loops, for example, as a result of moisture ingress after unsuccessful washing of the screen, the T-CON (Timing Controller) board may be faulty. But the main board MainBoard 715G6165-M0G-000-005X often turns out to be faulty, a software failure is also possible.
Then, first of all, you need to check the panel supply voltage, the fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.
If these measurements are within the normal range, it is necessary to use an oscilloscope to trace the passage of LVDS signals from MainBoard 715G6165-M0G-000-005X, as well as synchronization signals to loops with drivers.
Flooded or unsuccessfully washed screens of LED TVs can be restored, in about half of the cases, usually if significant damage has not formed in the loops and panel strips.
If there is no reception of TV channels, but the TV is working properly from external devices, first of all, you need to check the supply voltage of the TDSY-G720D tuner and update the software. I2C communication pulses must be monitored with an oscilloscope.
Attention to users! Self-repair of the PHILIPS 32PFT6549 TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> PHILIPS 32PFT6549 Chassis TPM14.1E LA
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Chassis TPM14.1E LA for models 24PHK5619/12, 24PHT5619/12, 32PHH4509/88, 32PHK4509/12, 32PHT4509/12, 32PHT4509/60, 32PFH5509/88, 32PFK5509/12, 32PFT5509/12, 32PFT6549/60, 32PFT6559/60, 40PFH4509/88, 40PFK4509/12, 40PFT4509/12, 40PFT4509/60, 40PFH5509/88, 40PFK5509/12, 40PFT5509/12, 42PFH5609/88, 42PFK5609/12, 42PFT5609/12, 42PFT5609/60, 42PFH6109/88, 42PFK6109/12, 42PFT6109/12, 42PFH6309/88, 42PFK6309/12, 42PFT6309/12, 42PFT6309/60, 42PFT6569/60, 47PFH5609/88, 47PFT5609/12, 47PFT5609/60, 47PFH6109/88, 47PFK6109/12, 47PFT6109/12, 47PFH6309/88, 47PFK6309/12, 47PFT6309/12, 47PFT6309/60, 47PFT6569/60, 48PFH5509/88, 48PFK5509/12, 48PFT5509/12, 50PFH4509/88, 50PFK4509/12, 50PFT4509/12, 55PFH5509/88, 55PFK5509/12, 55PFT5509/12, 55PFH5609/88, 55PFT5609/12, 55PFH6109/88, 55PFK6109/12, 55PFT6109/12, 55PFH6309/88, 55PFK6309/12, 55PFT6309/12, 55PFT6569/60.
The appearance of the MainBoard 715G6165-M0G-000-005X is shown in the figure below:715G6165-M0G-000-005X
External view of the power supply
The main features of the PHILIPS 32PFT6549 device:
Installed matrix (LED panel) TPT315B5-EUJFFK.
A converter combined with a power supply is used to power the backlight LEDs, and is controlled by a PF7903BS PWM controller. The keys of the AOTF4126, AO4486 types are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the PHILIPS 32PFT6549 TV is carried out by the 715G6161-P01-W21-002E power module, or its analogs using LD7752, MP6902DS microcircuits and power switches of the TK11A65D type.
MainBoard - the main board (motherboard) is a 715G6165-M0G-000-005X module, using CPU: MT5580, EEPROM: AT24C128, eMMC: P95L-4KA1-JW963 and others.
The TDSY-G720D tuner provides reception of television programs and tuning to channels.
Updating software (firmware, firmware).Version: 010.003.086.128, zip file, 202.5 MB, published January 9, 2018.Documentation:Quick start guide PDF file, 1.6 MB, published April 17, 2014Brochure Version: 6.1.1, PDF file, 518.3 kB, published July 19, 2019User manual PDF file, 2.1 MB, published September 1, 2014The files can be downloaded from the manufacturer's website for the 32PFT6549 / 60 model.
PHILIPS 32PFT6549 TV with LCD TPT315B5-EUJFFK, 32 "(81 cm) in 16: 9 format. The required screen brightness of 350 cd / m² is provided by LED backlighting. The display technology of the model is implemented with LED backlighting.
There is support for 3D images using polarization technology.
TPT315B5-EUJFFK matrix and MainBoard 715G6165-M0G-000-005X software provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphics resolution at 1080p (Full HD).
32PFT6549 TV is equipped with SMART software and the ability to work on the Internet. The connection to the network can be carried out via Wi-Fi wireless connection. The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in the 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker power of 22 W (2x11 W) is provided by two speakers. Uses the NICAM stereo signal processing system and the Sound Surround function.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART, RGB, HDMI x3, USB x2, Ethernet (RJ-45), Wi-Fi 802.11n , WiDi, Miracast. A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080.
The digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
The TV uses a 715G6161-P01-W21-002E power supply.
Dimensions: with stand 726x485x179 mm, without stand 726x429x55 mm.
TV weight: with stand: 6.4 kg, without stand: 5.5 kg.
Attention! Panel TPT315B5-EUJFFK LED TV PHILIPS 32PFT6549 is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.