Technical description and composition of the SAMSUNG UE55MU6300U TV, panel type and modules used. The composition of the modules.
SAMSUNG LED
Model: UE55MU6300U
Chassis / Version: AA01
Panel: CY-WM055HGAV1V
LED backlight: LM41-00135A, LM41-00136A
LED driver (backlight): integrated into PSU
PWM LED driver: SLC3011N
MOSFET LED driver: TO-220F
Power Supply (PSU): BN44-00807A L55S6_FHS
PWM Power: SPC7011F, FA6A20
MOSFET Power: N-FET TO-220F
MainBoard: BN41-02568B BN94-12426F
IC MainBoard: SDP1601, KLM4G1FEPD, 25Q40CLSIP, 25Q80DVSIG, TAS5749M
Tuner: BN40-00331A
Control: IR: KU6000 BN41-02324C, Wi-Fi: WCM730Q BN59-01264A
UE55MU6300U Specifications
SAMSUNG UE55MU6300U
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- TV SAMSUNG UE55MU6300U 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.
A fault in such cases should be started to look for in the circuits of the BN44-00807A power supply. It is necessary to measure its secondary output voltages, and if they are absent, check the power switches (N-FET TO-220F) and rectifier diodes in the converters for a short circuit.
In case of any breakdowns in the secondary circuits, the converter can operate in an emergency mode of a short circuit, and with a short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key is often cut off.
Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM regulator, in frequency-setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) SPC7011F, FA6A20 are usually checked by replacing them with new ones, or known to be working properly.
- There is no picture, but there is sound, it reacts to the remote control. Or the image appears when turned on and disappears immediately
As a rule, in this case, the backlight of the LED panel is faulty. Usually, the cause of the malfunction is in the breakage of the LEDs, or in the connectors of the LED strips LM41-00135A, LM41-00136A, but sometimes the LED driver is also faulty.
It is impossible to check the line of series-connected LEDs without a special current source, and it is unsafe for them to use any voltage sources above 12V for this purpose. Then all that remains is to open the panel and check each LED separately. Usually, Chinese multimeters with 9V power supply lightly light up one 3-volt LED, if you connect the probes to it in the forward direction, the red probe to the anode, and the black one 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.
If SAMSUNG UE55MU6300U has no picture, but there is sound, often the display backlight CY-WK055HGLV1V 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 LCD panel CY-WK055HGLV1V - a process that requires experience and qualifications from the master. We do not recommend doing such work on your own to owners of TVs and craftsmen who do not have experience in repairing LCD panels.
READ HOW TO REPAIR THE TV LED BACKLIGHT --------------> HERE.
If there is no image, and the backlight is on, the screen becomes slightly lighter when turned on, and in an open TV, light is visible 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 BN41-02568B often turns out to be faulty, a software failure is also possible.
Then, first of all, you need to check the panel 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 the normal range, it is necessary to use an oscilloscope to trace the passage of LVDS signals from the MainBoard BN41-02568B, as well as synchronization signals to the 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.
- The indicator blinks or is on constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the BN41-02568B motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). In some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - SDP1601, KLM4G1FEPD, 25Q40CLSIP, 25Q80DVSIG, TAS5749M with new or known good ones. In cases where BGA technologies are used, defects are usually localized by heating.
In cases where there is no tuning to terrestrial or cable TV channels, you should make sure that the software is correct, as well as in accordance with the ratings of the supply voltages at the terminals of the BN40-00331A tuner. It is also necessary to check with an oscilloscope the presence of pulses of data exchange between the tuner and the processor via the I2C bus.
Attention to users! Self-repair of the SAMSUNG UE55MU6300U TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!
Additional MainBoard Repair
The appearance of the MainBoard BN41-02568B is shown in the figure below:
BN41-02568B
External view of the power supply
BN44-00807A:
Main features of the SAMSUNG UE55MU6300U device:
Installed matrix (LED panel) CY-WM055HGAV1V.
A converter combined with a power supply is used to power the backlight LEDs and is controlled by the SLC3011N PWM controller. TO-220F switches are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE55MU6300U TV is carried out by the BN44-00807A power module, or its analogs using SPC7011F, FA6A20 microcircuits and N-FET TO-220F power switches.
MainBoard - the main board (motherboard) is a BN41-02568B module, using SDP1601, KLM4G1FEPD, 25Q40CLSIP, 25Q80DVSIG, TAS5749M and others.
The BN40-00331A tuner provides reception of television programs and tuning to channels.
Instructions and updates
There are files to download for the UE55MU6300UXCE model from the manufacturer:
Latest software updates, firmware (latest firmwares):
File type File name Version Date Size
Update file (USB) T-KTMDEUC.zip 1280.5 11/14/2019 1281.95 Mb
Manual update 2017_TV_Firmware_Upgrade_Instruction_1.0_T-KTMDEUC.pdf 1.0 28.11.2018 0.28 Mb
Update file (USB) T-KTMDEUC_1280.5.exe 1280.5 11/14/2019 1281.65 Mb
Update file (USB) T-KTMDEUC_1280.5_RU.exe 1280.5 14.11.2019 1281.65 Mb
User Manuals and Instructions:
File type File name Version Date Size
User manual UMU6300P_EN_BN68-08445G-01_L04_170329.1.pdf 01 08.08.2017 19.35 Mb
Installation Guide QSG_UMU6300P_CIS_BN68-08410Y-01_170719.0.pdf 01 08.08.2017 0.21 Mb
Instruction PDF ENG_KTMDVBEUL-3.0.7_180111.1.pdf 3.0.7 23.01.2018 13.11 Mb
Instruction PDF RUS_KTMDVBEUL-3.0.7_180111.1.pdf 3.0.7 23.01.2018 10.8 Mb
Files can be downloaded from the manufacturer's website for the UE55MU6300UXCE model.
TV SAMSUNG UE55MU6300U with LCD CY-WK055HGLV1V, 55 "(140 cm) 16: 9 format diagonally. This model uses a panel with edge LED backlighting - Edge LED.
CY-WK055HGLV1V sensor and MainBoard BN41-02568B software are capable of realizing images in the highest UHD quality at 3840x2160 pixels in 4K UHD, HDR standard. Image processing is performed using modern High Dynamic Range (HDR) technology with an extended range of brightness gradations.
TV model UE55MU6300U has built-in SMART software and Tizen operating system installed. The connection to the network can be carried out via Wi-Fi wireless connection. The input analog video signal is decoded in PAL, SECAM, NTSC systems. Graphic processing of a digital signal is performed in the 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards. Supported media file formats: MP3, WMA, MPEG4, HEVC (H.265), DivX, MKV, JPEG.
Speaker power 20 W (2x10 W) is provided by two speakers. The NICAM stereo audio processing system and the Sound Surround function are used.
Communication with other devices via an external interface is supported by standard input and output connectors: antenna input (RF), AV, component, HDMI x3, USB x2, Ethernet (RJ-45), Bluetooth, Wi-Fi 802.11n, Miracast. A VGA (D-Sub 15) connector is provided to connect a computer or laptop to this TV model. This interface supports standard resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080. The digital tuner is capable of receiving television channels in the DVB-T, DVB-T2, DVB-C, DVB-S, DVB-S2 standards.
The power consumed when operating from the network is 210 W. Power supply BN44-00807A.
Dimensions: with stand 1242x779x311 mm, without stand 1242x719x112 mm.
TV weight: with stand: 17.9 kg, without stand: 16.7 kg.
Attention! Panel CY-WK055HGLV1V of SAMSUNG UE55MU6300U 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.
