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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Tuesday 21 January 2020

REPAIR / SERVICING TV SAMSUNG UE50F6130

Technical description and composition of the SAMSUNG UE50F6130 TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE50F6130 UE50F6130AK
Chassis / Version: Ver: AD01
Panel: HF500CSA-B2
LED backlight: LUMENS D2GE-500SCA-R3 (13.01.07), LUMENS D2GE-500SCB-R3 (13.01.07)
T-CON: T500HVN05.1 CTRL BD 50T11-C03
LED driver (backlight): integrated into PSU; 132 / 198V 660mA
Power Supply (PSU): BN44-00624A - L50X1Q_DDY
MainBoard: BN41-01954A BN94-07063B
IC MainBoard: CPU: SENK13; EEPROM: 24C256, SPI FLASH: 25Q40, SOUND: NTP-7412S
Tuner: BN40-00262B - GT2CX-3S / K3S
Control: AA59-00743A
Technical Specifications UE50F6130
SAMSUNG UE50F6130
General repair guidelines for TV LCD LED
Possible malfunctions
- SAMSUNG UE50F6130 does not turn on and does not show any signs of performance at all. Does not blink indicators and does not respond to control buttons.
With such manifestations, a malfunction is most likely to be detected in the BN44-00624A power supply module. Then it is necessary to measure its output voltages 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 a possible short circuit.
In the event of a breakdown in the secondary circuits of the converter, it can usually fail in short circuit mode, and in case of a short circuit in the power elements of the primary circuit, the mains fuse or current sensor at the source of the key most often breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the PWM controller power circuit, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM microcircuits are usually checked by replacement with new ones, or obviously working.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
In some of these cases, the malfunction is caused by a lack of backlighting on the display. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To detect a break in the LED lines without disassembling the panel, a current source is required. It is impossible to open transitions connected in series with a simple multimeter; voltage of several tens of volts is necessary.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the BN41-01954A motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Sometimes they require checking or replacing (if necessary) the elements of the MainBoard - CPU: SENK13; EEPROM: 24C256, SPI FLASH: 25Q40, SOUND: NTP-7412S. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
If a tuner BN40-00262B - GT2CX-3S / K3S is suspected, it is first necessary to verify the correctness of the software, as well as the presence of the required power supply voltage levels and data exchange pulses with the processor via the I2C bus on the corresponding tuner pins.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Entrust repair to professionals with sufficient experience in the field of repair of electronic equipment.



The appearance of the MainBoard BN41-01954A is shown in the figure below:
BN41-01954A
BN41-01954A can be used in TVs:
SAMSUNG UE40F6100AK (Panel CY-HF400CSLV2V), SAMSUNG UE32F6100 UE32F6100AK (Panel HF320CSA-B1), SAMSUNG UE50F6130 UE50F6130AK (Panel HF500CSA-B2), SAMSUNG UE40F6130AK UE40F6130 (Panel CY-HF400CSLV2V).
The appearance of the power supply
Main features of the SAMSUNG UE50F6130 device:
The matrix (LED panel) HF500CSA-B2 is installed.
The matrix control uses the Timing Controller (T-CON) T500HVN05.1.
To power the backlight LEDs, a converter is used, combined with a power supply.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE50F6130 TV is carried out by the power module BN44-00624A, or its analogues.
MainBoard - the main board (motherboard) is a BN41-01954A module, using CPU chips: SENK13; EEPROM: 24C256, SPI FLASH: 25Q40, SOUND: NTP-7412S and others.
Tuner BN40-00262B - GT2CX-3S / K3S provides the reception of television programs and tuning to channels.


Posted By: FRANK at 07:59
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