REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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Wednesday 16 September 2020

REPAIRING / SERVICING TV SAMSUNG UE43N5510AU

Technical description and composition of the SAMSUNG UE43N5510AU TV, panel type and modules used. The composition of the modules.
SAMSUNG LED
Model: UE43N5510AU
Panel: CY-NN043BGAV2H
LED backlight: BN61-15482A EDGE-28EA-180223-7020
T-CON: T430HVN01.6 Ctrl BD 43T01-C04
LED driver (backlight): integrated into PSU
Power Supply (PSU): BN44-00956A L43E5_NDY
PWM Power: PFC, PWM
MOSFET Power: N-FET TO-220F
MainBoard: BN41-02575B BN94-13052L
IC MainBoard: CPU: SDP1604, SPI Flash: 25Q40, EEPROM: 25C512, eMMC: THGBMDG5D1LBAIT
Tuner: N40-00331B
Control: IR & Button: BN41-02515A
UE43N5510AU Specifications
SAMSUNG UE43N5510AU
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- TV SAMSUNG UE43N5510AU does not turn on, does not respond to the remote control and control panel buttons, does not light or blink indicators.
In some of these cases, the main switching power supply, the BN44-00956A module, is faulty. Its output voltages should be measured, and in their absence, check the serviceability of the power switches (N-FET TO-220F) of the converters and rectifier diodes for the probability of short circuit.
In case of breakdowns in the secondary circuits of the converter, it can usually work in an emergency mode in a short circuit mode, and with a short circuit in the power elements of the primary circuit, the mains fuse or current sensor in the source of the key is most often cut off.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements, which can disable it in key mode, or provoke an excess of the maximum current or voltage values. These can be circuits supplying a PWM controller, damper or frequency setting circuits, or OOS (negative feedback) elements in the stabilization circuit. PWM controllers (PWM) PFC, PWM, in the absence of external damage and short circuit between the terminals, are checked by replacing them with a known good one.
- There is no picture, but there is sound and reaction to the remote control. Or, for a second, the image may appear immediately after switching on.
A malfunction is usually in these cases most likely in the backlight units of the display matrix. Often the reason is a malfunction of the LEDs (open circuit, short circuit ...), or the connectors of the strips (strings), less often the LED driver turns out to be faulty.
It is impossible to check the LED bars for a break without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts is required, and ideally a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters tend to light one 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as an indicator of serviceability. In faulty LEDs, the zener diode will either be cut off, or pierced in the K / Z.
- The indicator on the front panel blinks, the TV does not turn on in operating mode, does not respond to the remote control.
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). Repair of the board and replacement of CPU chips: SDP1604, SPI Flash: 25Q40, EEPROM: 25C512, eMMC: THGBMDG5D1LBAIT are made with the necessary equipment and the corresponding element base. Failures 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 to TV channels, the N40-00331B tuner may be faulty. In such cases, first of all, you should make sure that there are supply voltages 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.
Attention to users! Self-repair of the SAMSUNG UE43N5510AU TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!

https://4.bp.blogspot.com/-MulD3UOmQYY/X2H_AClwjoI/AAAAAAABHHI/8-DjGH2LWSEvE9aYo9L8wz0S7xuPfllRgCK4BGAYYCw/s1600/BN41-02575B_DCE.jpgAdditional MainBoard Repair
The appearance of the MainBoard BN41-02575B is shown in the figure below:
BN41-02575B
External view of the power supply
Main features of the SAMSUNG UE43N5510AU device:
The matrix (LED panel) CY-NN043BGAV2H is installed.
Matrix control uses Timing Controller (T-CON) T430HVN01.6.
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 UE43N5510AU TV is carried out by the BN44-00956A power module, or its analogues using PFC, PWM microcircuits and power switches of the N-FET TO-220F type.
MainBoard - the main board (motherboard) is a BN41-02575B module, using CPU chips: SDP1604, SPI Flash: 25Q40, EEPROM: 25C512, eMMC: THGBMDG5D1LBAIT and others.
Tuner N40-00331B provides reception of television programs and tuning to channels.











There are files to download for the UE43N5510AUXRU 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 UE43N5510AUXRU model.


SAMSUNG UE43N5510AU TV with LCD CY-NN043BGAV2H, 42.5 "(108 cm) 16: 9 diagonal size. This model uses a panel with edge LED backlighting - Edge LED.
The CY-NN043BGAV2H sensor and 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 UE43N5510AU 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 mains is 100 W. Power supply BN44-00956A.
Dimensions: with stand 972x646x297 mm, without stand 972x569x61 mm.
TV weight: with stand: 11.1 kg, without stand: 9.2 kg.
Attention! Panel CY-NN043BGAV2H LED TV SAMSUNG UE43N5510AU 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.
Posted By: FRANK at 05:12
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