Technical description and composition of the SAMSUNG UE46H5303AK TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE46H5303AK
Chassis / Version: Ver: TD01
Panel: CY-DF460BGLV1V
LED backlight: LUMENS D3GE-460SMB-R1 (13.05.02), LUMENS D3GE-460SMA-R2 (13.07.10)
T-CON: LSF460HN02 BN41-01938B
LED driver (backlight): integrated into PSU
Power Supply (PSU): BN44-00771A - L46HF_EDY
PWM Power: PWM
MainBoard: BN41-02241A - BN94-07772K
IC MainBoard: SPI Flash: 25Q40CL; EEPROM: ATMLH 416 2EC; SOUND: TAS5747PHPR
Tuner: BN40-00287A
Control: WIFI: WIDT30Q BN59-01174A, IR: A33542c, BN41-01840c
Technical Specifications UE46H5303
SAMSUNG UE46H5303AK
General repair guidelines for TV LCD LED
If the TV does not turn on, no indicators on its front panel are lit or blinking. Also, if the TV does not respond to the remote control and buttons, does not make any sounds or any signs of operability when turned on, there is a certain chance that the BN44-00771A - L46HF_EDY power module is faulty and needs repair. Sometimes with similar manifestations, a problem can only occur in the absence of standby power. When diagnosing and repairing the power supply, first of all, replace the swollen capacitors of the filter of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module — rectifier diodes and transistors in the primary circuit.
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 binding of the PWM PWM controller microcircuit are subject to verification, which it is desirable to verify by replacement.
If the SAMSUNG UE46H5303AK has no image, there is sound and the channels are switched, there is a possibility of a malfunction in the backlight LED circuit of the CY-DF460BGLV1V 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.
Often in the absence of backlighting, disassembling the panel is required. It is necessary to check the serviceability of the transitions of the LEDs, as well as the reliability of the contact connections in the rulers and connectors.
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.
In cases of attempts to repair the motherboard BN41-02241A - BN94-07772K, it is necessary to check the operability of the linear stabilizers and power converters of its microcircuits and, if possible, update the software (software). BGA chips can sometimes be diagnosed with local heating.
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 - 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.
Before changing the tuner BN40-00287A, if it is not possible to tune to television channels, make sure that there are supply voltages that must be measured at the corresponding terminals of the tuner and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
Once again, remind users! Attempts to independently repair a SAMSUNG UE46H5303AK TV without the appropriate qualifications and experience can lead to its complete non-repairability!
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).
The appearance of the power supply
Main features of the SAMSUNG UE46H5303AK device:
Installed matrix (LED panel) CY-DF460BGLV1V.
The matrix control uses the Timing Controller (T-CON) LSF460HN02.
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 UE46H5303AK TV is carried out by the BN44-00771A power module, or its analogs using PWM chips.
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 BN40-00287A provides the reception of television programs and tuning to channels.
