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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Monday 30 December 2019

REPAIR / SERVICING TV SAMSUNG UE22H5600

Technical description and composition of the SAMSUNG UE22H5600 TV, panel type and applicable modules. The composition of the modules.
SAMSUNG
Model: UE22H5600 UE22H5600AK
Panel: M215HW03 V.1 // M215HTN01 .1
Inverter (backlight): integrated into PSU; 52V 120mA // 62V 70mA
PWM Inverter: BD93941FP
Power Supply (PSU): BN44-00692A LS22S0
PWM Power: SSC1S311
MainBoard: BN41-02148A
IC MainBoard: CPU: SEMS31, SPI FLASH: W25Q40CL, EEPROM: S24C512
Tuner: BN40-00287A
Control: WIFI: WIDT30Q BN59-01174A
Technical Specifications UE22H5600
SAMSUNG UE22H5600
General repair guidelines for TV LCD
Possible malfunctions
- SAMSUNG UE22H5600 TV does not turn on, does not respond to the remote control and control panel buttons, indicators do not light up and do not blink.
In some of these cases, the main switching power supply, the BN44-00692A module, is faulty. It is then necessary to measure its output voltages and, if they are absent, you should check the power switches and rectifier diodes of the converters for the probability of a short circuit.
In case of breakdowns in the secondary circuits, the converter, as a rule, can emergency work in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse usually breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damper circuits, as well as in Negative Stabilization Feedback. PWM circuits SSC1S311 are usually checked by replacing with new, or obviously working.
- There is no image, there is sound, it responds to the remote control. Or the image may appear for a second when turned on and immediately disappears.
These manifestations can be triggered by a power supply module, or by inverter defects, as well as a distortion of the currents in the lamps due to their uneven wear. If all the electrolytic capacitors of the filter according to the inverter power supply are serviceable, you should make sure that the lamps are in good working condition, then you need to check the converter keys and the secondary windings of the transformers.
Sometimes, for diagnostic purposes, inverter protection must be disabled. In such cases, special care must be taken during work, and the protection circuits should be restored immediately after the repair is completed.
- The indicator blinks or glows constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the BN41-02148A 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). Sometimes it is necessary to check or replace (if necessary) the elements of the MainBoard board - SPI FLASH: W25Q40CL, EEPROM: S24C512. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
Attention! For users and owners of UE22H5600 TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.



The appearance of the MainBoard BN41-02148A is shown in the figure below:
BN41-02148A
The appearance of the power supply
Main features of the SAMSUNG UE22H5600 device:
Installed matrix (LCD panel) M215HW03 V.1 or M215HTN01 .1.
To power the backlight, a converter is used, combined with a power supply, controlled by the BD93941FP PWM controller.
The necessary supply voltages for all nodes of the SAMSUNG UE22H5600 TV are generated by the power module BN44-00692A, or its analogs using SSC1S311 microcircuits.
MainBoard - the main board (motherboard) is a BN41-02148A module, using CPU chips: SEMS31, SPI FLASH: W25Q40CL, EEPROM: S24C512 and others.
The tuner BN40-00287A provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: AUO
Model: M215HW03 V1QA
Type: a-Si TFT-LCD, Panel
Diagonal size: 21.5 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 476.64x268.11 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC)
Response Time: 3.8 / 1.2 (Tr / Td)
Frequency: 60Hz
Lamp Type: 16S4P WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V




Posted By: FRANK at 06:26
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