Technical description and composition of the SAMSUNG UE49N5500 TV, panel type and modules used. The composition of the modules.SAMSUNG LED
Model: UE49N5500
Chassis / Version: BN41-02575B
Panel: CY-NN049BGEV1V
LED backlight: BN61-15483A 2X38_3030C_D6T-2D1_19S2P
T-CON: 47-6021079 HV490FHB-N8A
LED driver (backlight): integrated into PSU
Power Supply (PSU): BN44-00957A L49E5_NDY
MainBoard: BN41-02575B BN94-13053M
IC MainBoard: CPU: SDP1604, eMMC: THGBMDG5D1LBAIT, SPI Flash: 25Q40, EEPROM: 25C512
Tuner: BN40-00331B
Control: IR: BN41-02515A, WI-FI: WIDT30Q BN59-01174D
UE49N5500AU Specifications
SAMSUNG UE49N5500
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- SAMSUNG UE49N5500 TV does not turn on. There are no signs of operability. The indicators on the front panel do not light or blink, the TV does not respond to control buttons.
In some of these cases, the main switching power supply, the BN44-00957A module, is faulty. It is necessary to measure its output supply voltages, and in their absence, check the serviceability of the power switches of the converters and rectifier diodes for the probability of breakdown in semiconductor PN junctions.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in an emergency mode of short circuit without output voltages, and with a short circuit in the elements of the primary circuit, the mains fuse most often breaks off immediately and less often the current sensor in the source of the key.
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, in the absence of visible damage or outright short circuits between the terminals, are checked by replacing them with new ones, or knowingly working properly.
- There is no image, there is sound, it reacts to the remote control. Or the image may appear for a second when turned on and immediately disappear.
Usually, in such cases, there is no backlighting of the LED panel (matrix). Often the cause of a malfunction is the lack of current in the LED circuit, for example, their open or short circuit, or a violation of the contact connections of the connectors.
It should be remembered that it is not possible to determine an open circuit in the LED lines without disassembling the panels using 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 you need to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow opening the LED in the forward direction or dual LEds are used, then the PN transition of the emergency zener diode can indirectly serve as an indicator of serviceability. In the event of a malfunction of the LED-a, the PN-transition of the zener diode will either be cut off or broken into the K / Z.
- The TV does not turn on, the indicator signals the standby or operating mode, or blinks.
Repair or diagnostics of the BN41-02575B 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). Complicated repair of MB (SSB) board is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the elements of the CPU: SDP1604, eMMC: THGBMDG5D1LBAIT, SPI Flash: 25Q40, EEPROM: 25C512. BGA chip faults are usually easy to detect by warm-up.
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 power supply voltage of the BN40-00331B tuner and update the software. I2C communication pulses must be monitored with an oscilloscope.
Owners of the UE49N5500 TV are advised to contact only qualified specialists with the necessary experience for repair! Attempts to repair yourself without the appropriate knowledge and skills can lead to irreversible negative consequences!
Additional MainBoard RepairThe appearance of the MainBoard BN41-02575B is shown in the figure below:
BN41-02575B
Main features of the SAMSUNG UE49N5500 device:
Installed matrix (LED panel) CY-NN049BGEV1V.
Matrix control uses Timing Controller (T-CON) 47-6021079.
A converter combined with a power supply is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE49N5500 TV is carried out by the BN44-00957A power module, or its analogs.
MainBoard - the main board (motherboard) is a BN41-02575B module, using CPU chips: SDP1604, eMMC: THGBMDG5D1LBAIT, SPI Flash: 25Q40, EEPROM: 25C512 and others.
Tuner BN40-00331B provides TV reception and channel tuning.
There are files to download for the UE49N5500AUXRU model from the manufacturer:Latest firmware updates (latest firmwares):File type File name Version Date SizeUpdate file (USB) T-KTSNDEUC.zip 1292.1 02/18/2020 999.76 MbUpdate instruction 2018_TV_Firmware_Upgrade_Instruction_T-KTSNDEUC.pdf 1.0 23.06.2020 0.49 MbUpdate file (USB) T-KTSNDEUC_1292.1.exe 1292.1 02/18/2020 999.55 MbUpdate file (USB) T-KTSNDEUC_1292.1_RU.exe 1292.1 18.02.2020 999.55 MbUser Manuals and Instructions:File type File name Version Date SizeInstruction PDF ENG_KSFDVBEUN-1.0.2_180525.3.pdf - 29.06.2018 6.6 MbInstruction PDF RUS_KSFDVBEUN-1.0.2_180525.3.pdf - 29.06.2018 7.04 MbFiles can be downloaded from the manufacturer's website for the UE49N5500AUXRU model.
TV SAMSUNG UE49N5500AU with LCD CY-NN049BGEV1V, diagonal size 48.5 "(123 cm) 16: 9 format. This model uses a panel with edge LED backlighting - Edge LED.
The CY-NN049BGEV1V sensor and the MainBoard BN41-02575B software provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphics resolution in 1080p (Full HD). Image processing is performed using modern High Dynamic Range (HDR) technology with an extended range of brightness gradations.
The UE49N5500AU TV is equipped with SMART software, built-in applications and the ability to work on the Internet. The connection to the network can be carried out via Wi-Fi wireless connection. Supported media file formats: MP3, WMA, MPEG4, DivX, MKV, JPEG.
Speaker sound system 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), Wi-Fi, Miracast.
The digital tuner can receive TV channels in the DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2 standards.
The power consumed when operating from the network is 128 W. BN44-00957A power supply.
Dimensions: with stand 1105x721x297 mm, without stand 1105x644x64 mm.
TV weight: with stand: 14.6 kg, without stand: 13 kg.
Attention! Panel CY-NN049BGEV1V LED TV SAMSUNG UE49N5500AU 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.
