REPAIRING / SERVICING TV PHILIPS 50PFL5008T

 ​​Technical description and composition of the PHILIPS 50PFL5008T TV, panel type and modules used. The

composition of the modules.
PHILIPS LED
Model: 50PFL5008T / 60
Chassis / Version: TPM10.1E LA
Panel: LC500EUE (FF) (F1)
LED backlight: 6922L-0083A 6916L1291A
T-CON: LC500DUE-SFR1_Control Merge 6870C-0452A
LED driver (backlight): integrated into PSU
PWM LED driver: SSL100SN
MOSFET LED driver: STA3250, APM4015P, SF10A400HD
Power Supply (PSU): 715G5778-P02-000-002S
PWM Power: SSC9522S, R2A20133ESP (PFC), A6069H (Stb)
MOSFET Power: STF8NM50N, STF24NM60N (PFC)
MainBoard: 715G5713-M0E-000-005N
IC MainBoard: CPU: MT5580MPOI; DRAM: H5TQ2G83DFR; NAND Flash: TC58NVG2S3ETAI0; SOUND: STA3818
Tuner: TDSY-G230D
Specifications 50PFL5008T
PHILIPS 50PFL5008T
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- PHILIPS 50PFL5008T TV 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.
Most likely, in this case, the main switching power supply (SMPS) 715G5778-P02-000-002S is faulty. It is necessary to measure its output voltages, and in case of their absence (full or partial), the serviceability of the power switches (STF8NM50N, STF24NM60N (PFC)) of the converters and rectifier diodes should be checked for a possible short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in short-circuit mode, and in case of short-circuit in the elements of the primary circuit, the mains fuse usually breaks off.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can disable it in the key mode, or provoke an excess of the maximum current or voltage values. These can be circuits supplying the PWM controller, damper or frequency setting circuits, or OOS (negative feedback) elements in the stabilization circuit. PWM controllers (PWM) SSC9522S, R2A20133ESP (PFC), A6069H (Stb), in the absence of external damage and a short circuit between the terminals, are checked by replacing them with known good ones.
- There is no image, there is sound, it reacts to the remote control, the channels are switched. In some cases, the image appears when turned on and disappears immediately.
As a rule, in this case, the backlight of the LED panel is faulty. Often the reason is a malfunction of the LEDs (open circuit, short circuit ...), or the connectors of the strips (strings), less often the LED driver turns out to be faulty.
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 turn on, does not respond to the remote control. The indicator blinks or signals the standby mode.
Repair or diagnostics of the 715G5713-M0E-000-005N 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: MT5580MPOI; DRAM: H5TQ2G83DFR; NAND Flash: TC58NVG2S3ETAI0; SOUND: STA3818 which may require replacement. 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 50PFL5008T has no picture, but there is sound, often the LCD backlight LC500EUE (FF) (F1) 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 with a successful hit of external light on the screen.
Replacing the LEDs requires disassembling the LC500EUE LCD panel - a process that requires experience and qualifications from the technician. 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 the 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 often the main board MainBoard 715G5713-M0E-000-005N 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 715G5713-M0E-000-005N, 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 the TV operates normally from external devices, but does not tune to TV channels, the TDSY-G230D tuner may be faulty. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the reason for the inoperability of the tuner may be a software failure.

Attention! Users and owners of 50PFL5008T TVs who do not have the appropriate qualifications, knowledge and experience are strongly discouraged from attempting to repair themselves in order to avoid negative consequences that can lead to complete non-repairability of the device.

 DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    PHILIPS 50PFL5008T Chassis TPM10.1E LA  for models: 32PFL3008T/60, 32PFL3018T/60, 32PFL3078K/12, 32PFL3078T/12, 32PFL3118K/12, 32PFL3118T/12, 32PFL3158K/12, 32PFL3208H/12, 32PFL3208T/12, 32PFL3208K/12, 32PFL3258H/12, 32PFL3258T/12, 32PFL3258K/12, 32PFL3258T/60, 32PFL4208H/12, 32PFL4208K/12, 32PFL4208T/12, 32PFL4208T/60, 32PFL4208M/08, 32PFL4218H/12, 32PFL4218K/12, 32PFL4218T/12, 32PFL4218T/60, 32PFL4258H/12, 32PFL4258K/12, 32PFL4258T/12, 32PFL4258T/60, 32PFL4258M/08, 32PFL4308H/12, 32PFL4308K/12, 32PFL4308T/12, 32PFL4308T/60, 32PFL4508H/12, 32PFL4508K/12, 32PFL4508T/12, 32PFL4508M/08, 32PFL4508T/60, 32PFL5008H/12, 32PFL5008K/12, 32PFL5008T/12, 32PFL5008T/60, 32PFL5008M/08, 32PFL5018K/12, 32PFL5018T/60, 39PFL4218H/12, 39PFL3208H/12, 39PFL3208T/12, 39PFL3208K/12, 39PFL4208H/12, 39PFL4208K/12, 39PFL4208T/12, 39PFL4208T/60, 39PFL4208M/08, 40PFL3078K/12, 40PFL3078T/12, 40PFL3118K/12, 40PFL3118T/12, 40PFL4308H/12, 40PFL4308K/12, 40PFL4308T/12, 40PFL4308T/60, 40PFL4418H/12, 40PFL4418K/12, 40PFL4418T/60, 40PFL4508H/12, 40PFL4508K/12, 40PFL4508M/08, 40PFL4508T/12, 40PFL4508T/60, 40PFL4528H/12, 40PFL4528K/12, 40PFL4528T/12, 40PFL4528T/60, 42PFL3008T/60, 42PFL3208H/12, 42PFL3208T/12, 42PFL3208T/60, 42PFL3208K/12, 42PFL4208H/12, 42PFL4208K/12, 42PFL4208T/12, 42PFL4208T/60, 42PFL4208M/08, 42PFL5008H/12, 42PFL5008K/12, 42PFL5008T/12, 42PFL5008T/60, 42PFL5008M/08, 42PFL5028H/12, 42PFL5028K/12, 42PFL5028T/12, 42PFL5028T/60, 42PFL5028M/08, 42PFL5038H/12, 42PFL5038K/12, 42PFL5038T/12, 42PFL5038T/60, 46PFL3008T/60, 46PFL3108H/12, 46PFL3208H/12, 46PFL3208K/12, 46PFL3208T/12, 46PFL3208T/60, 46PFL4208H/12, 46PFL4208K/12, 46PFL4208T/12, 46PFL4208T/60, 46PFL4208M/08, 46PFL4308H/12, 46PFL4308K/12, 46PFL4308T/12, 46PFL4308T/60, 46PFL4418H/12, 46PFL4418K/12, 46PFL4418T/60, 46PFL4508H/12, 46PFL4508K/12, 46PFL4508M/08, 46PFL4508T/60, 46PFL4508T/12, 46PFL4528H/12, 46PFL4528K/12, 46PFL4528T/12, 46PFL4528T/60, 46PFL4908H/12, 47PFL5008H/12, 47PFL5008K/12, 47PFL5008T/12, 47PFL5008M/08, 47PFL5008T/60, 47PFL5028H/12, 47PFL5028K/12, 47PFL5028T/12, 47PFL5028M/08, 47PFL5028T/60, 47PFL5038H/12, 47PFL5038K/12, 47PFL5038T/12, 47PFL5038T/60, 50PFL4208H/12, 50PFL4208K/12, 50PFL4208M/08, 50PFL4208T/12, 50PFL5008H/12, 50PFL5008K/12, 50PFL5008M/08, 50PFL5008T/12, 50PFL5008T/60, 50PFL5028H/12, 50PFL5028K/12, 50PFL5028M/08, 50PFL5028T/12, 50PFL5028T/60, 50PFL5038H/12, 50PFL5038K/12, 50PFL5038T/12, 50PFL5038T/60, 55PFL4308H/12, 55PFL4308K/12, 55PFL4308T/12, 55PFL4308T/60, 55PFL4508H/12, 55PFL4508K/12, 55PFL4508T/12, 55PFL4508M/08, 55PFL4508T/60, 55PFL4528H/12, 55PFL4528T/12, 55PFL4528T/60.

 

 The appearance of the MainBoard 715G5713-M0E-000-005N is shown in the figure below:

715G5713-M0E-000-005N
715G5713-M0E-000-005N can be used in TVs:
PHILIPS 32PFL5008T/60 (Panel LC320EUE (FF)(F1) code 189 p/n: 932229831682), PHILIPS 46PFL4208T/60 (Panel TPT460H1-HM01 REVC1F), PHILIPS 50PFL5028T/60 (Panel LC500EUE-FFF1 code 192 p/n: 932229834682), PHILIPS 32PFL4418T/60 (Panel LTA320HJ06).
External view of the power supply
The main features of the PHILIPS 50PFL5008T device:
Matrix (LED panel) LC500EUE (FF) (F1) is installed.
Matrix control uses the Timing Controller (T-CON) LC500DUE-SFR1_Control.
A converter combined with a power supply is used to power the backlight LEDs, and is controlled by the SSL100SN PWM controller. The keys of the STA3250, APM4015P, SF10A400HD types are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the PHILIPS 50PFL5008T TV is carried out by the power module 715G5778-P02-000-002S, or its analogs using the SSC9522S, R2A20133ESP (PFC), A6069H (Stb) and power switches of the STF8NM50N, STF24NM60N type (PFC).
MainBoard - the main board (motherboard) is a 715G5713-M0E-000-005N module, using CPU chips: MT5580MPOI; DRAM: H5TQ2G83DFR; NAND Flash: TC58NVG2S3ETAI0; SOUND: STA3818 and others.
The TDSY-G230D tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG Display
Model: LC500EUE-FFF1
Type: a-Si TFT-LCD, Panel
Diagonal size: 50 inch
Resolution: 1920x1080, FHD
Display Mode: IPS, Normally Black, Transmissive
Active Area: 1095.84x616.41 mm
Surface: Antiglare (Haze 1%), Hard coating (2H)
Brightness: 350 cd / m²
Contrast Ratio: 1400: 1
Display Colors: 16.7M (8-bit)
Response Time: 6 (G to G)
Frequency: 60Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V

PHILIPS 50PFL5008T TV with LCD LC500EUE, diagonal size 50 "(127 cm) 16: 9 format. Necessary screen brightness of 400 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 500,000: 1 is achieved by special control of LED operation. Edge LED side illumination is used.
There is support for 3D images using polarization technology.
The LC500EUE sensor and MainBoard 715G5713-M0E-000-005N software allow viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphics resolution at 1080p (Full HD).
The 50PFL5008T 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 standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, DivX, MKV, JPEG.
Speaker power 20 W (2x10 W) is provided by two speakers. Uses NICAM stereo processing system and 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, Wi-Fi, 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 power consumed in the operating mode from the network is 52 W. Power supply 715G5778-P02-000-002S.
Dimensions: with stand 1126x737x225 mm, without stand 1126x673x34 mm.
TV weight: with stand: 17.7 kg, without stand: 16.2 kg.
Attention! The LC500EUE (FF) (F1) panel of the PHILIPS 50PFL5008T LED TV 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.