Technical description and composition of the SAMSUNG UE55H6203AK TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE55H6203AK UE55H6203
Panel: CY-DF550CSLV1V
T-CON: SK98BN930
LED driver (backlight): integrated into PSU
Power Supply (PSU): BN44-00777A
MainBoard: BN41-02241A BN94-07763M
IC MainBoard: SPI Flash: 25Q40CL, EEPROM: ATMLH 416 2EC, SOUND: TAS5747PHPR
Tuner: BN41-02241A BN94-07772A
Technical Specifications UE55H6203
SAMSUNG UE55H6203AK
General repair guidelines for TV LCD LED
Possible manifestations of defects
- SAMSUNG UE55H6203AK does not turn on. The control lights do not light or flash. On the remote control and other control buttons does not respond.
Most often, with such manifestations, the BN44-00777A power module turns out to be faulty. It is necessary to measure the secondary output voltage, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for a short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during a short circuit in the power elements of the primary circuit, the mains fuse usually breaks.
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. It can be supply, damper circuits, or elements of OOS (negative feedback) stabilization. The reason for the breakdown of the power switch may be PWM (PWM). It is checked only by replacement with a known good one.
- There is no image, but there is sound, it reacts to the remote control. Or the image appears when you turn it on and immediately disappears
In most cases, the malfunction is caused by the lack of a backlight display. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To check the LED strips, to open all the transitions of the LEDs, several tens of volts or more are needed, it is best to use a current source for such purposes. The breakage of several PN junctions connected in series cannot be detected with a multimeter or tester. In such cases, it is necessary to open the panel and check each LED. If your multimeter cannot open the LED transitions in forward bias, sometimes you can detect the presence of a PN junction 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.
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the BN41-02241A 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). Often, the MB (SSB) card needs to be replaced in case of complex faults that are difficult to detect. When trying to repair, you should check its elements - SPI Flash: 25Q40CL, EEPROM: ATMLH 416 2EC, SOUND: TAS5747PHPR and replace failed chips with new ones. Some malfunctions may be due to the use of BGA soldering technologies in modern Main Board technologies. Typically, such defects are detected by local heating of the chip.
If the TV works normally from external devices, but does not tune into television channels, the tuner BN41-02241A BN94-07772A may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding conclusions. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
Owners and users of the SAMSUNG UE55H6203AK TV should remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
The appearance of the MainBoard BN41-02241A is shown in the figure below:BN41-02241A
BN41-02241A can be used in TVs:
SAMSUNG UE40H5303 UE40H5303AK (Panel CY-DF400BGLV1V), SAMSUNG UE40H6203 UE40H6203AK (Panel CY-DF400CSLV3V), SAMSUNG UE46H6233 UE46H6233AK (Panel CY-DF460CSLV1V), SAMSUNG UE46H5303AK (Panel CY-DF460BGLV1V), SAMSUNG UE55H6203AK UE55H6203 (Panel CY-DF550CSLV1V), SAMSUNG UE32H5303AK UE32H5303 (Panel CY-DF320BGLV1V LSF320HN02-A01), SAMSUNG UE46H6203AK UE46H6203 (Panel CY-DF460CSLV1V).
Main features of the SAMSUNG UE55H6203AK device:
Installed matrix (LED-panel) CY-DF550CSLV1V.
The matrix control uses the Timing Controller (T-CON) SK98BN930.
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 UE55H6203AK TV is carried out by the BN44-00777A power supply module, or its analogs.
MainBoard - the main board (motherboard) is a BN41-02241A module using SPI Flash chips: 25Q40CL, EEPROM: ATMLH 416 2EC, SOUND: TAS5747PHPR and others.
The tuner BN41-02241A BN94-07772A provides the reception of television programs and tuning to channels.
