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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Sunday, 12 January 2020

REPAIR / SERVICING TV SAMSUNG UE40K5510

Technical description and composition of the SAMSUNG UE40K5510 TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE40K5510 UE40K5510BU
Chassis / Version: FA01
Panel: CY-KK040BGLV3V
LED backlight: Edge LED
LED driver (backlight): integrated into PSU
PWM LED driver: SLC7015R02
Power Supply (PSU): BN44-00871A
PWM Power: FA1A50N, FA6A21N
MOSFET Power: 60R580P
MainBoard: BN41-02534B Hawk_M_Pro2
IC MainBoard: CPU: SDP1415, SPI Flash 25Q41, EEPPOM: 24C512, eMMC: THGBMBG5
Tuner: BN40-00316A
Technical Specifications UE40K5510AW
SAMSUNG UE40K5510
General repair guidelines for TV LCD LED
Possible malfunctions
- SAMSUNG UE40K5510 TV does not turn on at all. There is no reaction to the remote control and control buttons from the front panel. Indicator lights do not light or flash.
In such cases, the fault should be sought first in the BN44-00871A power supply module. Then it is necessary to measure its output voltage and, in case of their complete or partial absence, it is necessary to check the serviceability of power switches and rectifier diodes of the converters for the presence of a possible short circuit.
In case of any breakdowns in the secondary circuits, the converter can operate in emergency short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key more often breaks.
The breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback (OOS) stabilization circuits. PWM controllers (PWM), if they do not have visible damage to the chassis and open short circuit between the terminals, are usually checked by replacement.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
In some of these cases, a malfunction is caused by a lack of display backlight. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
It should be remembered that it is not possible to determine the break in the LED lines without disassembling the panels with 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 it is necessary to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow you to open the LED in the forward direction or dual LEd are used, then the PN junction of the emergency zener diode can indirectly serve as a health indicator. In case of LED-a malfunction, the zener diode PN junction will either be cut off or broken into short-circuit.
- The indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the BN41-02534B motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, you should update or replace the software (software). If it is not possible to replace the MB (SSB) card, you need to check the health of its elements - CPU: SDP1415, SPI Flash 25Q41, EEPPOM: 24C512, eMMC: THGBMBG5. Defective components should be replaced.
Before replacing the tuner BN40-00316A, if there is no tuning to the channels, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Once again, remind users! Attempts to self-repair a SAMSUNG UE40K5510 TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!

The appearance of the MainBoard BN41-02534B is shown in the figure below:
BN41-02534B
BN41-02534B can be used in TVs:
SAMSUNG UE40K5500 (Panel CY-KK040BGLV1V), SAMSUNG UE32K5500 UE32K5500AW (Panel CY-KK032BGAV1V), SAMSUNG UE49K5500 UE49K5500BU (Panel CY-KK049BGLV1V).
The appearance of the power supply
Main features of the SAMSUNG UE40K5510 device:
Installed matrix (LED-panel) CY-KK040BGLV3V.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the PLC controller SLC7015R02.
The necessary supply voltages for all nodes of the SAMSUNG UE40K5510 TV are generated by the BN44-00871A power module or its analogs using FA1A50N, FA6A21N microcircuits and 60R580P type power switches.
MainBoard - the main board (motherboard) is a BN41-02534B module, using CPU chips: SDP1415, SPI Flash 25Q41, EEPPOM: 24C512, eMMC: THGBMBG5 and others.
The tuner BN40-00316A provides the reception of television programs and tuning to channels.
Posted By: FRANK at 07:33
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