PHILIPS LED
Model: 49PUS7100 / 60
Chassis / Version: QV15.1E LA
Panel: LC490EQE-FHP1
LED backlight: 49 V15 ART3 FHD REV 0.1 6 L-TYPE, R-TYPE
T-CON: 6870C-0535B
LED driver (backlight): integrated into PSU
PWM LED driver: SSC9522S
MOSFET LED driver: TK10A50D
Power Supply (PSU): 715G6973-P01-004-002H
PWM Power: LD7591T, LD5532
MOSFET Power: TK18A60V, TK11A65D
MainBoard: 715G7259-M0F-000-005T
IC MainBoard: 88DE3214B0. SI2169, TDA8296HN, TAS5760LDSFT
Tuner: SUT-PE231AN / PE531ANANT
Specifications 49PUS7100
PHILIPS 49PUS7100
General recommendations for TV LCD LED repair
Possible malfunctions
- The PHILIPS 49PUS7100 TV does not turn on and does not show any signs of turning on, does not respond to the control buttons and to the remote control.
In some of these cases, the defect is detected in the 715G6973-P01-004-002H power module. It is necessary to measure the output voltages in its secondary circuits, and if they are completely absent, the serviceability of the power switches (TK18A60V, TK11A65D) and rectifier diodes should be checked for possible breakdown (short circuit).
In case of any breakdown of semiconductors in the secondary circuits, the converter can usually operate normally in an emergency short-circuit mode. There are no output voltages. And with a short circuit in the power elements of the primary circuit, as a rule, the mains fuse breaks and, less often, the current sensor in the source of the key.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can disable it in 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) LD7591T, LD5532, 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 picture, but there is sound, it reacts to the remote control. Or the image appears when turned on and disappears immediately
Often in such cases, there is no backlighting of the LED panel. Usually the cause of the malfunction is in the breakage of the LEDs, or in the connectors of the LED strips, but sometimes the LED driver is also faulty.
It is impossible to detect a break in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and a voltage of several tens of volts is required to open their junctions. Ideally, a current source is suitable for such purposes. You can open the panel and check each LED separately. Usually, Chinese multimeters lightly light up one 3-volt LED if you connect the probes to it in the forward direction (red probe to the anode, black to the cathode). For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of the LED health. In the event of a malfunction of the LED, its zener diode will either be cut off or pierced in the K / Z.
- The TV does not go into operation, does not respond to the remote control. The indicator on the front panel is on or blinking.
If PHILIPS 49PUS7100 has no picture, but there is sound, often the LCD backlight LC490EQE-FHP1 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 LC490EQE-FHP1 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 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 715G7259 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 trace the passage of LVDS signals from MainBoard 715G7259 with an oscilloscope, 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.
Repair or diagnostics of the 715G7259 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). Repair of the board and replacement of chips 88DE3214B0. SI2169, TDA8296HN, TAS5760LDSFT are produced with the necessary equipment and the corresponding element base. Malfunctions associated with the use of BGA soldering technologies can be localized by warming up.
If the TV operates normally from external devices, but does not tune into TV channels, the SUT-PE231AN / PE531ANANT tuner may malfunction. In such cases, first of all, you should make sure that the supply voltage is present 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.
I remind users again! Attempts to repair the PHILIPS 49PUS7100 TV on your own without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> PHILIPS 49PUS7100 Chassis QV15.1E LA FOR MODELS 43PUK7100/12, 43PUS7100/12, 43PUS7100/60, 43PUS7150/12, 48PUS7600/12, 48PUS7600/60, 49PUK7100/12, 49PUK7150/12, 49PUK7170/12, 49PUS7100/12, 49PUS7100/60, 49PUS7150/12, 49PUS7150/60, 49PUS7170/12, 49PUS7180/12, 55PUK7100/12, 55PUK7150/12, 55PUK7170/12, 55PUS7100/12, 55PUS7100/60, 55PUS7150/12, 55PUS7150/60, 55PUS7170/12, 55PUS7180/12, 55PUS7600/12, 55PUS7600/60, 55PUS8700/12, 65PUK7120/12, 65PUS7120/12, 65PUS7120/60, 65PUS7600/12, 65PUS7600/60, 65PUS8700/12.
The appearance of the MainBoard 715G7259-M0F-000-005T is shown in the figure below:
715G7259-M0F-000-005T
The main features of the PHILIPS 49PUS7100 device:
Installed matrix (LED panel) LC490EQE-FHP1.
Matrix control uses a Timing Controller (T-CON) 6870C-0535B.
A converter combined with a power supply is used to power the backlight LEDs, and is controlled by the SSC9522S PWM controller. TK10A50D keys are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the PHILIPS 49PUS7100 TV is carried out by the power module 715G6973-P01-004-002H, or its analogs using LD7591T, LD5532 microcircuits and power switches such as TK18A60V, TK11A65D.
MainBoard - the main board (motherboard) is a 715G7259-M0F-000-005T module using 88DE3214B0 microcircuits. SI2169, TDA8296HN, TAS5760LDSFT and others.
The SUT-PE231AN / PE531ANANT tuner provides reception of television programs and tuning to channels.
PHILIPS 49PUS7100 TV with LCD display LC490EQE-FHP1, diagonal size 49 "(124 cm) 16: 9. The required brightness of the screen of 400 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.
The LC490EQE-FHP1 sensor and MainBoard 715G7259 mainboard software are capable of realizing the highest UHD quality at 3840x2160 4K UHD resolution.
49PUS7100 TV model has built-in SMART software and Android TV operating system installed. 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 digital signal formation occurs in the 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 2160p standards. Supported media file formats: MP3, WMA, MPEG4, 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 x4, USB x4, Ethernet (RJ-45), Bluetooth, 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, 3840x2160. The digital tuner is capable of receiving television channels in the DVB-T, DVB-T2, DVB-C, DVB-S, DVB-S2 standards.
The TV uses a 715G6973-P01-004-002H power supply.
Dimensions: with stand 1149x701x255 mm, without stand 1103x639x37 mm.
TV weight: with stand: 13.9 kg, without stand: 13.6 kg.
Attention! The LC490EQE-FHP1 panel of the PHILIPS 49PUS7100 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
