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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Friday 10 January 2020

REPAIR / SERVICING TV SAMSUNG UE40F6200AK

Technical description and composition of the SAMSUNG UE40F6200AK TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE40F6200AK
Panel: CY-HF400BGLV2V
LED backlight: D2GE-400SCA / B-R3 [12,12,28], BN41-01970A (BN96-25336A) LED 3535 = A127CECEBUP8
T-CON: BN41-01398B - LSF400HM02
LED driver (backlight): integrated into PSU
PWM LED driver: SLC5012M, SMS1013
Power Supply (PSU): BN44-00616A
PWM Power: SPS1013P
MainBoard: BN41-01958B
IC MainBoard: K4B2G1646E, KLM4G1FE3B, 25Q40, 25Q40, WT61P807, TAS5745
Tuner: GT2CX-3S / K3S BN40-00262B
Control: IR: BN41-01976B (A26664C) and WIFI: BN59-01161A WIDT-30Q
Technical Specifications UE40F6200
SAMSUNG UE40F6200AK
General repair guidelines for TV LCD LED
Fault diagnosis and repair SAMSUNG UE40F6200AK, as well as other electronic devices, it is recommended to start with an external examination of the external and internal elements. Often by the external signs and nature of the damage to the elements, it becomes possible to draw some conclusions and determine a further algorithm for finding a defect before making the necessary measurements at control points. In most cases, the repairman can guess the causes of the defect and possible consequences by the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of element outputs, swollen rectifier filter capacitors, charred resistors and other circuit elements.
If the UE40F6200AK does not turn on, does not respond to the remote control and the front panel buttons, does not blink bulbs and does not show any signs of operability, the BN44-00616A power supply module is probably faulty in this case. If it is serviceable with such manifestations, it is necessary to check the power supply stabilizer (converter) on the motherboard.When diagnosing and repairing the power supply, first of all, replace the swollen capacitors of the filter of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module — rectifier diodes and transistors in the primary circuit.
Mos-Fet keys used in switching power supplies (SMPS) rarely fail for no reason to look for when checking other circuit elements. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. The SPS1013P PWM controller microcircuit can also cause a breakdown of the power switch of the converter.
In cases where the SAMSUNG UE40F6200AK TV has lost its image, and the sound is there and all other functions are operational, there is a possibility of a malfunction of the LED driver (converter for powering the backlight LEDs of the CY-HF400BGLV2V panel). When you turn on the TV, the image may appear briefly and disappear immediately. It must be borne in mind that with such manifestations the LEDs themselves also fail.
A malfunction in the backlight circuits often occurs due to a break in the power supply lines of the LED lines. It requires disassembling the panel and checking the LEDs themselves, the soldering of their outputs, as well as the reliability of the connections in the connectors and the soldering of the conclusions of the connectors.
When trying to identify a break in the LED lines, it should be borne in mind that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
Diagnosis and repair of the BN41-01958B motherboard is carried out by checking the operability of the stabilizers or power converters of the module chips. In some cases, a software update is required.
In cases of attempts to repair the MB (SSB) board, it is necessary to check the serviceability of its elements - K4B2G1646E, KLM4G1FE3B, 25Q40, 25Q40, WT61P807, TAS5745 which may require replacement with new ones. If the BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
If the TV works normally from external devices, but does not tune into television channels, the tuner GT2CX-3S / K3S BN40-00262B may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals, as well as the power supply of varicaps (30-33V).
We recommend the owners of the UE40F6200AK TV for repair only to qualified specialists with experience! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!


The appearance of the MainBoard BN41-01958B is shown in the figure below:
BN41-01958B
BN41-01958B can be used in TVs:
SAMSUNG UE39F5500 UE39F5500AK (Panel HF390BGM-C1), SAMSUNG UE32F5300AK (Panel HF320BGA-B1), SAMSUNG UE40F6200AK (Panel CY-HF400BGLV2V), SAMSUNG UE32F4500AK (Panel HF32AGH-R1), SAMSUNG UE42F5300AK (Panel CY-HF420BGAV1V), SAMSUNG UE46F6500 AK (Panel CY-HF400CSLV1V), SAMSUNG UE46F6330AK UE46F6330 (Panel CY-HF460CSLV2V), SAMSUNG UE32F6330 AK (Panel CY-HF320CSLV1V), SAMSUNG UE40F6330AK UE40F6330 (Panel CY-HF400CSLV5V), SAMSUNG UE40F6510AB UE40F6510 (Panel CY-GF400CSLV2V), SAMSUNG UE55F6400AK UE55F6400 (Panel CY-HF550CSLV1V), SAMSUNG UE40F6540AB (Panel CY-GF400CSLV3V), SAMSUNG UE40F6500 UE40F6500SS (Panel CY-GF400CSLV1H), SAMSUNG UE46F6650 UE46F6650AB (Panel CY-GF460CSLV1V), SAMSUNG UE46F6510 UE46F6510AB (Panel CY-GF460CSLV2V), SAMSUNG UE50F6330 UE50F6330AK (Panel HF500CSA-B1).
The appearance of the power supply
Main features of the SAMSUNG UE40F6200AK device:
Installed matrix (LED-panel) CY-HF400BGLV2V.
The matrix control uses the Timing Controller (T-CON) BN41-01398B.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by a PWM controller SLC5012M, SMS1013.
The necessary supply voltages for all nodes of the SAMSUNG UE40F6200AK TV are generated by the BN44-00616A power module, or its analogs using SPS1013P microcircuits.
MainBoard - the main board (motherboard) is a BN41-01958B module, using the K4B2G1646E, KLM4G1FE3B, 25Q40, 25Q40, WT61P807, TAS5745 and other chips.
The tuner GT2CX-3S / K3S BN40-00262B provides the reception of television programs and tuning to channels.
Information from an alternative source:
SAMSUNG UE40F6200AK
Panel Type (Matrix): CY-HF400CSLV1V
Motherboard: BN94-06265P BN41-01958A, 25Q40BVSIP, 24C256, Tuner: BN40-00262A
T-con: 13Y FHD 60Hz V02,
PSU: L46ZF_DSM BN44-00616A
Remote control: AA59-00790A
Posted By: FRANK at 07:09
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