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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Saturday, 18 January 2020

REPAIR / SERVICING TV SAMSUNG UE48H6200

Technical description and composition of the SAMSUNG UE48H6200 TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE48H6200 UE48H6200AK
Chassis / Version: U8DC
Panel: CY-GH048CSLV1V
LED backlight: BN41-02176A, D4GE-480DCA-R2, D4GE-480DCB-R2
T-CON: BN41-02110
LED driver (backlight): integrated into PSU; 76V 990mA
PWM LED driver: 7014X
Power Supply (PSU): BN44-00709A
PWM Power: FA6A01N, S3051 (PFC)
MainBoard: BN41-02156A - BN94-07307Y
IC MainBoard: CPU: SEMS-31, SPI-FLASH: 25Q40, EEPROM: 24C512
Tuner: BN40-00288B
Technical Specifications UE48H6200
SAMSUNG UE48H6200
General repair guidelines for TV LCD LED
In cases where the SAMSUNG UE48H6200 TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink, and there are no sounds and no signs of operability when turning on, the BN44-00709A power supply module is most likely faulty or missing standby power. In the general case, first of all, it is necessary to check the electrolytic capacitors of the secondary rectifier filters and the fuse at the input of the network. If it is broken, then you should check for breakdown of the PN junctions of the rectifier bridge diodes and the key transistor of the converter, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Possible options.
If the power keys of the pulse converter are not equal, you should pay attention to other elements in their bundling, which may be the result or cause of their breakdown.
If the SAMSUNG UE48H6200 does not have an image, there is sound and the channels are switched, there is a possibility of a malfunction in the backlight LED circuit of the CY-GH048CSLV1V panel, or their power converter - LED driver. Sometimes, when turned on, the image appears and immediately disappears. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the backlight unit.
To check the health of the LEDs and contact connections in their power circuit, the panel must be disassembled.
To check the health in the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can check each LED individually with a simple Chinese multimeter (powered by 9 volts) in the P-N-junction test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. A zener diode PN junction indirectly indicates a LED-a
Diagnosis and repair of the motherboard BN41-02156A - BN94-07307Y usually begins with a test of the performance of the stabilizers and power converters of the module chips. In some cases, a software update is required.
When repairing an MB board, it is necessary to check its CPU components: SEMS-31, SPI-FLASH: 25Q40, EEPROM: 24C512. Defective items should be replaced. If BGA chips are installed, their malfunction is usually localized by heating.
The malfunction of the tuner BN40-00288B is established after checking the software and all supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be controlled by an oscilloscope.
We recommend the owners of the UE48H6200 TV for repair only to qualified specialists with experience! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!


SCHEMATIC MANUAL -----------> SAMSUNG Chassis: U8DC; Model: UE32H6200AW, UE40H6200AW, UE48H6200AW, UE50H6200AW, UE55H6200AW, UE60H6200AWA


 The appearance of the MainBoard BN41-02156A is shown in the figure below:
BN41-02156A
BN41-02156A can be used in TVs:
SAMSUNG UE40H6200 UE40H6200AK (Panel CY-GH040CSLV1V), SAMSUNG UE32H5500 UE32H5500AK (Panel GH032BGA-B2), SAMSUNG UE40H5500 UE40H5500AK (Panel CY-GH040BGLV2V), SAMSUNG UE32H6200AK (Panel CY-GH032CSLV1V), SAMSUNG UE40H6350 (Panel CY-GH040CSLV2V), SAMSUNG UE32H6410AU UE32H6410 (Panel CY-GH032CSLV4V), SAMSUNG UE40H6400AK UE40H6400 (Panel CY-SH040CSL V2H), SAMSUNG UE48H6200 UE48H6200AK (Panel CY-GH048CSLV1V), SAMSUNG UE48H6230AK UE48H6230 (Panel CY-GH048CSLV1V), SAMSUNG UE48H6400AK UE48H6400 (Panel CY-GH048CSLV2V), SAMSUNG UE48H6410AU UE48H6410 (Panel CY-GH048CSLV4V), SAMSUNG UE48H6240AK UE48H6240 (Panel CY-GH048CSLV1V), SAMSUNG UE32H4500AK UE32H4500 (Panel CY-HH032AGLV2V), SAMSUNG UE40H6410 UE40H6410AU (Panel CY-GH040CSLV4V), SAMSUNG UE40H6500 UE40H6500AT (Panel CY-GH040CSLV1V), SAMSUNG UE32H6230 UE32H6230AK (Panel T320HVF05.2), SAMSUNG UE32H4510 UE32H4510AK (Panel HH032AGH-R3 BN96-31086F), SAMSUNG UE32H6350 UE32H6350AK (Panel CY-GH032CSLV2V), SAMSUNG UE40H6230 UE40H6230AK (Panel CY-GH048CSLV1V).
The appearance of the power supply
Main features of the SAMSUNG UE48H6200 device:
Installed matrix (LED panel) CY-GH048CSLV1V.
The matrix control uses the Timing Controller (T-CON) BN41-02110.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by a 7014X PWM controller.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE48H6200 TV is carried out by the BN44-00709A power module, or its analogs using the FA6A01N, S3051 (PFC) microcircuits.
MainBoard - the main board (motherboard) is a BN41-02156A module, using CPU chips: SEMS-31, SPI-FLASH: 25Q40, EEPROM: 24C512 and others.
The tuner BN40-00288B provides the reception of television programs and tuning to channels.
Posted By: FRANK at 07:17
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