Technical description and composition of the PHILIPS 40PFT4101 TV, type of panel and applicable modules. The composition of the modules.
PHILIPS LED
Model: 40PFT4101 / 60
Chassis / Version: TPN16.2E LA
Panel: TPT400LA-HN02.S Rev: S801C
LED backlight: GJ-2K15 D2P5-400-D409-C4 9LED 795mm
T-CON: 15Y_40GF11BMB7S4LV0.1; LTF64B2, RT6929, RT6936
LED driver (backlight): integrated into PSU
PWM LED driver: PF7708AS
MOSFET LED driver: CYS9240
Power Supply (PSU): 715G6934-P01-000-002H
PWM Power: PF6003AHS (PWM Flyback), AOZ3015AI (Step-Down 12V / 5V)
MOSFET Power: TK8A65D
MainBoard: 715G6947-M01-000-004Y
IC MainBoard: CPU: NT72453; NAND Flash: MX30LF1G08AA-T1 1Gb; SOUND: AUDIO AD87588-LG48NAY
Tuner: ST42CS-2-E 394GNPALALL32L
Control: IR: 715G7055-R01-000-004Y
Specifications 40PFT4101
PHILIPS 40PFT4101
General repair guidelines for TV LCD LED
Possible malfunctions
- The PHILIPS 40PFT4101 TV does not turn on, does not respond to the remote control and the control panel buttons, and does not blink with any indicators.
In such cases, the 715G6934-P01-000-002H power supply is usually faulty. It is necessary to measure the secondary output voltage, and in case of their absence, check the serviceability of the power switches (TK8A65D) of the converters and rectifier diodes for a short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during short circuit in the power elements of the primary circuit, the main fuse usually breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, power supply, frequency-setting, damper ... as well as elements of the Negative Stabilization Feedback. PWM chip PF6003AHS (PWM Flyback), AOZ3015AI (Step-Down 12V / 5V) can also cause a malfunction of the power switch of the converter and is checked by replacement.
- There is no image, there is sound, it responds to the remote control, the channels are switched. In some cases, the image appears when you turn on and immediately disappears.
In such cases, the most likely malfunction of the LED backlight elements. 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.
It should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels with a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required. Then it is necessary to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow you to open the LED in the forward direction or dual LEd are used, then the PN junction of the emergency zener diode can indirectly serve as a health indicator. In case of LED-a failure, the zener diode PN junction will either be cut off or broken into short-circuit.
- The TV does not turn on, the indicator indicates standby or operating mode, or blinks.
If PHILIPS 40PFT4101 has no picture but has sound, often the display backlight of TPT400LA-HN02.S is simply not working.
In such cases you can see a faintly visible image when external light hits the screen.
To replace the LEDs requires disassembly of the LCD panel TPT400LA-HN02.S - the process requiring the master of experience and expertise. I do not recommend to perform such works by yourself to owners of TV sets and craftsmen who have no experience in LCD panel repair
If there is no image, but backlighting works - the screen becomes slightly lighter when the TV is turned on, and in the open TV you can see the light through the holes in the body of the panel.
In this case the panel may be defective - damage to the strips, cables, for example, as a consequence of moisture after an unsuccessful washing of the screen, the T-CON board (Timing Controller) may be defective. But quite often the MainBoard 715G6947-M01-000-004Y is defective, also software failure is possible.
Then first it is necessary to check the panel power supply voltage, 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 normal limits, you need to trace by oscilloscope the LVDS signals from MainBoard 715G6947-M01-000-004Y, as well as synchronizing signals to driver stubs.
Filled or unsuccessfully washed LED TV screens can be restored in about half of the cases, usually, if there is no significant damage to the panel stubs and slats.
Repair or diagnostics of the motherboard 715G6947-M01-000-004Y should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). Board repair and replacement of CPU chips: NT72453; NAND Flash: MX30LF1G08AA-T1 1Gb; SOUND: AUDIO AD87588-LG48NAY are produced with the necessary equipment, and the corresponding element base. Faults associated with the application of BGA processor soldering technologies can be localized by the heating method.
If there is no reception of television channels, but the TV is working properly from external devices, first of all you need to check the voltage of the tuner ST42CS-2-E 394GNPALALL32L and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.
Once again, I remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Entrust repair to professionals with sufficient experience in the field of repair of electronic equipment.
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> PHILIPS 40PFT4101 Chassis TPN16.2E LA.
32PFH4101/88, 32PFT4101/12, 32PFK4101/12, 32PFT4101/60, 32PHH4101/88,
32PHT4101/12, 32PHK4101/12, 32PHT4101/60, 32PHH4201/88, 32PHT4201/12,
32PHK4201/12, 32PHT4201/60, 40PFH4101/88, 40PFT4101/12, 40PFK4101/12,
40PFT4101/60, 40PFT4111/12, 40PFH4201/88, 40PFT4201/12, 40PFK4201/12,
48PFH4101/88, 48PFT4101/12, 48PFK4101/12, 48PFT4101/60
The appearance of the MainBoard 715G6947-M01-000-004Y is shown in the figure below:
715G6947-M01-000-004Y
715G6947-M01-000-004Y can be used in TVs:
PHILIPS 40PFT4100/60 (Panel TPT400LA-HN02.S Rev-SS01B code 018), PHILIPS 24PHT4000/60 (Panel TPM236WH2-BJ1P03.N REV.LC1E), PHILIPS 40PFT4101/60 (Panel TPT4001A-HN02.S / TPN16.2ELA), PHILIPS 32PHT4100/60 (Panel TPT315B5-0TU3A.Q code: 003).
The appearance of the power supply
Main features of the PHILIPS 40PFT4101 device:
Installed matrix (LED panel) TPT400LA-HN02.S Rev: S801C.
The matrix control uses the Timing Controller (T-CON) 15Y_40GF11BMB7S4LV0.1 ;.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the PF7708AS PWM controller. As power elements of the LED driver, keys of the type CYS9240 are used.
The necessary supply voltages for all nodes of the PHILIPS 40PFT4101 television are generated by the 715G6934-P01-000-002H power supply module or its analogs using PF6003AHS (PWM Flyback), AOZ3015AI (Step-Down 12V / 5V) microcircuits and TK8A65D power switches.
MainBoard - the main board (motherboard) is a module 715G6947-M01-000-004Y, using CPU chips: NT72453; NAND Flash: MX30LF1G08AA-T1 1Gb; SOUND: AUDIO AD87588-LG48NAY and others.
The ST42CS-2-E 394GNPALALL32L tuner provides TV reception and channel tuning.
Software update (firmware).
Version: 000.000.002.560, zip file, 29.3 MB, published August 14, 2018.
Documentation:
Quick guide PDF file, 2.8 MB, published April 10, 2016.
Brochure Version:4.1.1, PDF file, 512.6 kB, published July 19, 2019.
Operating instructions PDF file, 2.8 MB, published March 9, 2016.
The files can be downloaded from the manufacturer's website for the 40PFT4101/60 model.
TV PHILIPS 40PFT4101 with LCD TPT400LA-HN02.S, size diagonal 40 "(102 cm) format 16:9. In the manufacturing technology of the display model is implemented LED backlighting.
TPT400LA-HN02.S matrix and MainBoard software 715G6947-M01-000-004Y provide for viewing shows and movies in high quality HD resolution 1920x1080 pixels in 1080p (Full HD). Input high-frequency or video signal can be processed in PAL, SECAM, NTSC analog systems. Graphical processing and digital signal formation is performed in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
The sound system capacity of 16W (2x8W) is provided by two speakers. NICAM STEREO audio processing system is used.
External interface (connection with other devices) is supported by standard input and output connectors: antenna input (RF), SCART, HDMI x2, USB. There is a headphone output. To connect your computer or laptop to this TV model uses a VGA (D-Sub 15) connector on the TV body, this interface supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080. The digital tuner can receive TV channels in the standards DVB-T, DVB-T2, DVB-C.
The TV has a power supply 715G6934-P01-000-002H.
Dimensions: with stand 904x565x195 mm, without stand 904x525x77 mm.
TV weight: with stand 7kg, without stand 6.9kg.
Warning. The panel TPT400LA-HN02.S of PHILIPS 40PFT4101 LED-TV is an expensive and unreliable part of the TV.
Avoid any kind of impact on the glass and pressure on the screen surface to avoid damaging the LED panel!
Also it is not safe to get liquid on the screen. Sometimes one drop is enough if it drips down the glass onto the cables and the TV becomes unrepairable.