Friday, 12 March 2021

REPAIRING / SERVICING TV SAMSUNG UE49N5510AU

Technical description and composition of the SAMSUNG UE49N5510AU TV, panel type and modules used. The composition of the modules.

Samsung led.
Model: UE49N5510AU.

Chassis / Version: Kant-S BN41-02575

PANEL: CY-NN049BGLV3H

LED Backlight: LM41-00630A

LED Driver: Integrated INTO PSU

PWM LED DRIVER: BD94062F SO-16

MOSFET LED DRIVER: TO-252

POWER SUPPLY (PSU): BN44-00957A L49E5_NDY

PWM POWER: PFC (SO-8), PWM (SO-16)

MOSFET POWER: TO-252

Mainboard: BN41-02575B BN94-13052Q

IC Mainboard: CPU: SDP1604, EMMC: THGBMDG5D1LBAIT, SPI Flash: 25Q40, EEPROM: 25C512

TUNER: BN40-00331B.

Technical specifications UE49N5510AU.
SAMSUNG UE49N5510AU.
General Recommendations for Repair TV LCD LED
Possible malfunctions

- SAMSUNG UE49N5510AU does not turn on, does not respond to the remote and the control panel buttons, does not shine and does not flash indicators.

Usually with similar manifestations, the defect is caused by faulty elements in the main power module BN44-00957A. It is necessary to measure its output voltages and, if there is no absence, check the health of power keys (TO-252) and rectifiable diodes in converters for a probable breakdown.
In the breakdowns of diodes in secondary circuits, the converter can operate in the emergency short circuit mode without output voltages, and when the PRT in the power elements of the primary circuit, a network fuse and / or current sensor in the key of the key is usually broken.
Power key breakdown (MOSFET) in pulse sources is sometimes caused by the faults of other schema elements, for example, in chains that feed the PWM controller, frequency and damping, as well as in the negative feedback (EOS) stabilization circuits. PFC (SO-8), PWM (SO-16) PWM (SO-8), PWM (SO-16), if you do not have visible damage to the body and a frank KZ between outputs, are usually checked by replacement.

- No images, the sound, is, the remote control reacts. Either immediately after switching on for a second, the image may appear and immediately the abyss.

Usually in such cases there is no illumination of the LED panel (matrix). Often the cause of the malfunction is the lack of current in the circuit of the LEDs, for example, their breakdown or closure, or the disruption of contact connections of the LM41-00630A operating connections.

READ HOW TO REPAIR THE TV LED BACKLIGHT --------------> HERE.

 
To identify a break in the LED line without disassembling the panel, simply multimeter is impossible. The LEDs are connected in series and to open their transitions, a voltage of several dozen volts will be required. Ideally, for such purposes, the current source will fit. You can open the panel and check each LED separately. Usually, Chinese multimeters are slightly flashing one 3-volt LED if you connect the probe to it in the forward direction (red dipstick - to the anode, black to the cathode). At dual 6-volt indicators, the operation of LED-A can serve as a PN-transition of its emergency stabilion. In the event of a malfunction, LED-and its stabilion will either be broken, either breaks through to / s.

- The TV does not go to the operating mode, does not respond to the remote control. The indicator on the front panel shines constantly, or blinks.

Repair or diagnostics of the BN41-02575B motherboard should be started with checking stabilizers and power converters required for nutrition chip and matrix. If necessary, you should update or replace software (software). If there is no possibility of replacing the MB board (SSB), it is necessary to check the help of its elements - CPU: SDP1604, EMMC: THGBMDG5D1LBAIT, SPI Flash: 25Q40, EEPROM: 25C512. Faulty components should be replaced.

If you suspect a malfunction of the BN40-00331B tuner, it is first necessary to make sure that the software corrects are correct, as well as in the presence of the desired levels of supply voltages and data exchange pulses with the processor over the I2C bus on the appropriate tuner outputs.

The owners and users of the Samsung UE49N5510AU TV should be remembered that independent repairs without special knowledge, skills and qualifications may be fraught with negative consequences that can lead to complete irreparability  of the device!

Driver current limit. BN44-00957A, BD94062F. general information

PWM-control driver chip - BD94062F, current sensor - Resistor R9873 1.4 OHM.
To reduce the backlight current, you can increase the value of the R9873 current sensor, for example, from 1.4 to 2 OHM.

The document PDF for  ----------> BD94062F.

READ HOW TO REPAIR THE TV LED BACKLIGHT --------------> HERE.

 
Additionally on repair Mainboard

The appearance of the Mainboard BN41-02575B is shown in the figure below:






BN41-02575B.

Appearance Power Supply

The main features of the Samsung UE49N5510AU device:

The matrix (LED panel) is installed CY-NN049BGLV3H.
To power the backlight LEDs, a transducer combined with a power supply is applied, controlled by the BD94062F SO-16 PWM controller. The keys of the T-252 type are used as the LED-driver strengths.

The formation of the required feed voltages for all SAMSUNG UE49N5510AU TV nodes is carried out by the BN44-00957A power supply module, or its analogues using PFC microcircuits (SO-8), PWM (SO-16) and T-252 strength keys.
Mainboard is the main board (motherboard) is the BN41-02575B module, using CPU chip: SDP1604, EMMC: THGBMDG5D1LBAIT, SPI Flash: 25Q40, EEPROM: 25C512 and others.
The BN40-00331B tuner provides reception of television programs and settings to the channels.


Instructions and updates

For the UE49N5510Auxru model, the manufacturer has files for download:

Latest firmware updates:
File Type File Name Version Date Size
Update file (USB) T-KTSNDEUC.zip 1310.4 02.11.2020 1006.11 MB
Upgrading instructions 2018_tv_firmware_upgrade_instruction_t-ktsndeuc.pdf 1.0 23.06.2020 0.49 MB
Update file (USB) T-KTSNDEUC_1310.4.exe 1310.4 02.11.2020 1005.9 MB
Update file (USB) t-ktsndeuc_1310.4_ru.exe 1310.4 02.11.2020 1005.9 MB

Instructions and manuals for users (User Manuals):
File Type File Name Version Date Size
Instructions PDF ENG_KSFDVBEUN-1.0.2_180525.3.pdf - 06/29/2018 6.6 MB
Instructions PDF RUS_KSFDVBEUN-1.0.2_180525.3.pdf - 06/29/2018 7.04 MB

You can download files on the manufacturer's website for the ue49n5510auxua.


Samsung UE49N5510AU TV with CY-NN049BGLV3H LCD display, diagonal size 48.5 "(123 cm) of a 16: 9 format. In this model, a panel with an end location of the LED backlit is used - Edge LED.
CY-NN049BGLV3H matrix and Mainboard BN41-02575A mainboard software software provide for viewing gears and films in high quality HD with a resolution of 1920x1080 pixels in graphic decomposition according to 1080p (Full HD). Image processing is made according to modern High Dynamic Range (HDR) technology with an advanced brightness gradation range.
The UE49N5510AU TV is equipped with SMART software, embedded applications and the ability to work on the Internet. Connection to the network can be carried out by wireless Wi-Fi. Supported Multimedia File Formats: MP3, WMA, MPEG4, DivX, MKV, JPEG.
The power of the speaker system of the sound 20 W (2x10 W) provide two speakers. The NICAM sound stereon processing system is used and the Sound Surround voluminous sound function.
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. Digital tuner is able to receive television channels in DVB-T, DVB-T2, DVB-C, DVB-S, DVB-S2 standards.

The power consumed in the network mode is 128 W. Power supply BN44-00957A.

Overall dimensions: with Stand 1105x721x297 mm, without a stand 1105x644x64 mm.

TV mass: with stand: 14.6 kg, without stand: 13 kg.

Attention! SAMSUNG UE49N5510AU LED TV CY-NN049BGLV3H panel is expensive and unreliable it element.
Do not allow any shocks on the glass and pressure on the screen surface to avoid damage to the LED panel!
Also unsafe hitting the fluid on the screen. Sometimes one drop is enough if it shocks down the glass on the plumes so that the TV becomes unrepairable.