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 UE40J6330AU

Technical description and composition of the SAMSUNG UE40J6330AU TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE40J6330AU
Panel: CY-GH040CSLVFV
LED backlight: 2014SVS40 3228 R03 REV1.6 150401 LM41-00099H
T-CON: BN95-02412A BN41-02229
LED driver (backlight): integrated into PSU
PWM LED driver: 7014X
MOSFET LED driver: 5N40, KF3N40W
Power Supply (PSU): BN44-00703G
PWM Power: S3051 (PFC), FA6A20 (PWM resonant)
MOSFET Power: 13N60M2 (PFC), 14NM50N
MainBoard: BN41-02353B BN94-09093P
IC MainBoard: SPI Flash: W25Q40; EEPROM: 24C512
Tuner: BN40-00318B
Control: Wi-Fi: BN59-01174D
Technical Specifications UE40J6330AU
SAMSUNG UE40J6330AU
General repair guidelines for TV LCD LED
Possible malfunctions
- SAMSUNG UE40J6330AU TV does not turn on at all. The control lights do not light or flash. On the remote control and the buttons on the control panel does not respond.
Often in such cases, the BN44-00703G power module is faulty. It is necessary to measure its secondary output voltages, and if they are absent, check the health of the power switches (13N60M2 (PFC), 14NM50N) of the converters and rectifier diodes for a possible short circuit.
During thermal and avalanche breakdowns of semiconductors in secondary circuits, the converter can usually work normally in emergency short circuit mode. There are no output voltages. And during short circuit in the power elements of the primary circuit, as a rule, the mains fuse breaks and less often the current sensor at the source of the key.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, power supply, frequency-setting, damper ... as well as elements of the Negative Stabilization Feedback. PWM chip S3051 (PFC), FA6A20 (PWM resonant) can also cause a malfunction of the power switch of the converter and is checked by replacement.
- There is no image, but there is sound, it reacts to the remote control. Or the image appears when you turn on and immediately disappears
The most likely in these cases is a malfunction of the LED backlight. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
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.
- 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 BN41-02353B 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).
Before changing the Tuner tuner, if it is not possible to tune to television channels, make sure that there are supply voltages that must be measured at the corresponding tuner pins and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair to professionals with sufficient experience in the repair of electronic equipment.


The appearance of the MainBoard BN41-02353B is shown in the figure below:
BN41-02353B
BN41-02353B can be used in TVs:
SAMSUNG UE40J6390 (Panel CY-GH040CSLV1V), SAMSUNG UE40J5530AU UE40J5530 (Panel CY-GJ040BGSV5V), SAMSUNG UE40J5500AU (Panel CY-GJ040BGSV5V), SAMSUNG UE40J5550 UE40J5550AU (Panel CY-GJ040BGSV1V), SAMSUNG UE40J6330AU (Panel CY-GH040CSLVFV), SAMSUNG UE32J6300 UE32J6300AU (Panel CY-GH032CSLV5V), SAMSUNG UE48J6200AU (Panel CY-GH048CSLVAV), SAMSUNG UE48J5510AU (Panel CY-GJ048BGLV3V), SAMSUNG UE32J6500AU UE32J6500 (Panel CY-WJ032CGLV2V), SAMSUNG UE40J5520AU UE40J5520 (Panel CY-GJ040BGSV5V), SAMSUNG UE43J5500 UE43J5500AU (Panel T430HVF01.0), SAMSUNG UE40J6200AU UE40J6200 (Panel CY-GH040CSLV8V), SAMSUNG UE32J5550AU UE32J5550 (Panel CY-GJ032BGAB3V), SAMSUNG UE32J5500AU (Panel T320HVF05.5), SAMSUNG UE40J6590 UE40J6590AU (Panel CY-WJ040CGLV1V), SAMSUNG UE40J5510AU (Panel CY-GJ040BGSV3V).
The appearance of the power supply
Main features of the SAMSUNG UE40J6330AU device:
Installed matrix (LED panel) CY-GH040CSLVFV.
The matrix control uses the Timing Controller (T-CON) BN95-02412A.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by a 7014X PWM controller. As power elements of the LED driver, keys of the type 5N40, KF3N40W are used.
The necessary supply voltages for all nodes of the SAMSUNG UE40J6330AU TV are generated by the BN44-00703G power supply module or its analogs using S3051 (PFC), FA6A20 (PWM resonant) microcircuits and 13N60M2 (PFC), 14NM50N power switches.
MainBoard - the main board (motherboard) is a BN41-02353B module, using SPI Flash chips: W25Q40; EEPROM: 24C512 and others.
The tuner BN40-00318B provides the reception of television programs and tuning to channels.
Posted By: FRANK at 06:48
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