Technical description and composition of the SAMSUNG UE22C4000PW TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE22C4000PW UE22C4000
Chassis / Version: CN92B, Ver: CY03 // CY02
Panel: T216HAE1-DB
LED backlight: LMB-2160BM11
T-CON: V216B1-XC01 V216B1-P04
LED driver (backlight): integrated into PSU
PWM LED driver: HV9963
MOSFET LED driver: SDT03N04
Power Supply (PSU): BN44-00347A PD22AF0E
PWM Power: ICE3BR1765J, FSQ0765RS
MainBoard: BN41-01548A - BN94-02758Q // BN94-02758A - BN41-01379A
IC MainBoard: SEMS18 DNIE 1025B-LF, SUB: WT61P802, Eeprom: 24C256, 24C02
Tuner: BN40-00196A (DTOS40FVH082A)
Control: IR: BN96-12884B - BN41-01359A
Technical Specifications UE22C4000
SAMSUNG UE22C4000PW
General repair guidelines for TV LCD LED
In cases where the SAMSUNG UE22C4000PW 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 or any signs of operability when turning on, the BN44-00347A PD22AF0E power supply module is most likely faulty or there is no standby power. When diagnosing and repairing the power supply, after replacing the swollen capacitors of the filters of the secondary rectifiers (if any), you must first check the mains fuse. When it is broken, the power elements of transistors and rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors in switching power supplies (SMPS) fail for no reason that should be sought by checking other components, for example, a key breakdown can provoke faulty elements of the damper circuits, or dried electrolytic capacitors or dangling primary resistors BP circuits involved in the stabilization process. In this case, all semiconductor elements of the strapping of the PWM controller ICE3BR1765J, FSQ0765RS, which it is desirable to check by replacement, are subject to verification.
In cases where the SAMSUNG UE22C4000PW TV has lost an image, and the sound is there and all other functions are operational, there is a possibility of a LED driver malfunction (a converter for powering the T216HAE1-DB backlight LEDs). When you turn on the TV, the image may appear briefly and disappear. It must be borne in mind that with such manifestations the LEDs themselves also fail.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as the contact connections in the connectors and soldering.
To open all the junctions, several tens of volts or more are necessary, and it is best to use a current source for such purposes. An open in the LED lines connected in series cannot be detected with a multimeter or tester without disassembling the panel. In the open panel, it is necessary to check each LED. If your multimeter cannot open the LED transitions in forward bias, then see the presence of the PN transition of the protective zener diode by connecting the probes in the opposite direction. If the zener diode is broken or broken in short-circuit, then the LED is faulty and needs to be replaced.
Diagnosis and repair of the BN41-01548A BN94-02758Q motherboard 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.
Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - SEMS18 DNIE 1025B-LF, SUB: WT61P802, Eeprom: 24C256, 24C02 and replace failed chips with new ones. Some malfunctions may be due to the use of BGA soldering technologies in modern Main Board. Typically, such defects are detected by local heating of the chip.
If there is no reception of television channels, but the TV is working properly from external devices, first of all, check the voltage of the tuner BN40-00196A (DTOS40FVH082A) and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.
Once again, remind users! Attempts to self-repair a SAMSUNG UE22C4000PW TV without the appropriate qualifications and experience can lead to its complete non-repairability!
SCHEMATICS --------> Chassis: N92B; Model: UE19C4000PW, UE22C4000PW, UE26C4000PW.
PSU SCHEMATICS ----------> BN44-00347A Power Supply schematic diagram.
The appearance of the MainBoard BN41-01548A is shown in the figure below:BN41-01548A
BN41-01548A can be used in TVs:
SAMSUNG UE22C4000PW UE22C4000 (Panel T216HAE1-DB), SAMSUNG UE26C4000PW UE26C4000 (Panel T260HAE1-DB).
The appearance of the power supply
Main features of the SAMSUNG UE22C4000PW device:
Installed matrix (LED panel) T216HAE1-DB.
The matrix control uses the Timing Controller (T-CON) V216B1-XC01.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the HV9963 PWM controller. As power elements of the LED driver, keys of the type SDT03N04 are used.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE22C4000PW TV is carried out by the BN44-00347A power module, or its analogs using ICE3BR1765J, FSQ0765RS microcircuits.
MainBoard - the main board (motherboard) is a BN41-01548A module, using microchips SEMS18 DNIE 1025B-LF, SUB: WT61P802, Eeprom: 24C256, 24C02 and others.
The tuner BN40-00196A (DTOS40FVH082A) provides the reception of television programs and tuning to channels.
