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 UE40J6500AU

Technical description and composition of the SAMSUNG UE40J6500AU TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE40J6500AU
Chassis / Version: TH01
Panel: CY-WJ040CGLV2V
LED backlight: V5DF-400DCA-R2 [01/15/27], V5DF-400DCB-R2 [01/15/27]
T-CON: BN41-02229A
LED driver (backlight): integrated into PSU
Power Supply (PSU): BN44-00803A L48CS1 FHS REV: 1.2
MainBoard: BN41-02353B BN94-09096Z
IC MainBoard: CPU: SDP1415, EMMC: THGBMBG5D1KBAIT, RAM: K4B4G16460-BCMA
Tuner: BN40-00318A DNTS243H5A
Control: IR: BN41-02324B, Bluetooth: BN96-30218E WIBT40A
Technical Specifications UE40J6500AU
SAMSUNG UE40J6500AU
General repair guidelines for TV LCD LED
Possible malfunctions
- SAMSUNG UE40J6500AU 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.
Failure in such cases should begin to be sought in the power supply circuits of BN44-00803A. It is necessary to measure its secondary output voltages, and if they are absent, check the power switches and rectifier diodes in the converters for a short circuit.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the mains fuse and, less often, the current sensor at the source of the key are most often cut off.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke an excess of the maximum current or voltage. These can be circuits supplying the PWM controller, damping or frequency-setting circuits, or elements of OOS (negative feedback) in the stabilization circuit. PWM controllers (PWM), in the absence of external damage and a short circuit between the terminals, are checked by replacing with obviously good ones.
- There is no image, there is sound, it responds to the remote control, the channels are switched. In some cases, the image appears when you turn on and immediately disappears.
In some of these cases, a malfunction is caused by a lack of display 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.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN-junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
- The TV does not turn on, the indicator signals standby or working mode, or blinks.
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, update or replace the software (software). Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the CPU elements: SDP1415, EMMC: THGBMBG5D1KBAIT, RAM: K4B4G16460-BCMA. BGA chip malfunctions are usually easy to detect by warming up.
If a tuner BN40-00318A DNTS243H5A is suspected of malfunction, first of all, it is necessary to verify the correctness of the software, as well as the presence of the necessary voltage levels and pulses of data exchange with the processor via the I2C bus at the corresponding terminals of the tuner.
We recommend the owners of the UE40J6500AU TV for repair only to qualified specialists with the necessary work experience! Attempts to repair it yourself without the appropriate knowledge and skills can lead to irreversible negative consequences!



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 UE40J6500AU device:
Installed matrix (LED panel) CY-WJ040CGLV2V.
The matrix control uses the Timing Controller (T-CON) BN41-02229A.
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 UE40J6500AU TV is carried out by the BN44-00803A power module, or its analogues.
MainBoard - the main board (motherboard) is a BN41-02353B module, using CPU chips: SDP1415, EMMC: THGBMBG5D1KBAIT, RAM: K4B4G16460-BCMA and others.
The tuner BN40-00318A DNTS243H5A provides the reception of television programs and tuning to channels.
Posted By: FRANK at 06:54
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