Technical description and composition of the SAMSUNG UE40D6510 TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE40D6510 UE40D6510WS
Panel: LD400CSC-C2
T-CON: V460HK1-C01 CM3802B
LED driver (backlight): integrated into PSU
PWM LED driver: SEM5025
MOSFET LED driver: STU432S
Power Supply (PSU): BN44-00427A -PD46B2_BSM
PWM Power: SQD3011K, UCC25600, ICE2PCS06 (PFC)
MOSFET Power: 10NM60N, MDF9N50
MainBoard: BN41-01587E
IC MainBoard: SDP1001, SDP1005, SDP94, SIL9489ACTU, K4B2G1646C-HCH9, EPM240T100C4N
Tuner: BN40-00217A
Technical Specifications UE40D6510
SAMSUNG UE40D6510
General repair guidelines for TV LCD LED
It is advisable to start the repair of the SAMSUNG UE40D6510 WS TV with a careful external examination of both internal and external elements. According to some external signs of a change in the state of some elements, it is sometimes possible to make assumptions about the nature of the defect, as well as determine the further direction of the troubleshooting. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a significant clue in the assumptions about the causes and consequences of the malfunction.
If the power supply module BN44-00427A malfunctions, the external manifestations may be different, for example, SAMSUNG UE40D6510 does not turn on at all and there is no indication of the indicator lights on the front panel. With the same symptoms, the stabilizer (converter) of the power supply to the control processor may be faulty. 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.
Mos-Fet keys used in switching power supplies (SMPS) rarely fail for no reason to look for when checking other circuit elements. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. PWM controller microcircuit SQD3011K, UCC25600, PFC: ICE2PCS06 can also cause a breakdown of the power switch of the converter.
Sometimes the SAMSUNG UE40D6510 TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the LD400CSC-C2 panel backlight LED converter, or a break in the LED circuit is possible. In such cases, first of all, it is necessary to verify the serviceability of all the electrolytic capacitors of the filter by supplying the LED driver itself, including the power supply unit (power supply unit).
To check the health of the LEDs, as well as contact connections in the ruler circuit, it is necessary to disassemble the panel.
It should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels with a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required.
The BN41-01587E motherboard must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up continuously. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary.
Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the elements SDP1001, SDP1005, SDP94, SIL9489ACTU, K4B2G1646C-HCH9, EPM240T100C4N. BGA chip malfunctions are usually easy to detect by warming up.
If the TV works normally from external devices, but does not tune into television channels, the tuner BN40-00217A may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals.
Remember! Attempts to self-repair by users of the SAMSUNG UE40D6510 TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!
The appearance of the MainBoard BN41-01587E is shown in the figure below:BN41-01587E
BN41-01587E can be used in TVs:
SAMSUNG UE40D6510 UE40D6510WS (Panel LD400CSC-C2), SAMSUNG UE55D6100SW (Panel LTJ550HW04-L), SAMSUNG UE46D6530WS UE46D6530 (Panel LTJ460HW01-V), SAMSUNG 32D6510 32D6510WS (Panel LD320CSC-C2), SAMSUNG UE40D6530 UE40D6530WS (Panel LTJ400HV01-V), SAMSUNG UE46D6510WS UE46D6510 (Panel LTJ460HW02-L), SAMSUNG UE32D6510WS UE32D6510 (Panel LD320CSC-C2), SAMSUNG UE40D6500 UE40D6500VS (Panel LTJ400HV01-J).
PSU Advanced
The power module BN44-00427A is made using the Power Factor Correction (PFC) scheme to eliminate multiple AC harmonics introduced into the power supply by the device. The PFC node is a Step-Up Converter based on the ICE2PCS06 PWM controller, which evenly distributes high-frequency pulses of the charging current of the electrolytic capacitor of the rectifier filter of the mains voltage over a period of 50 Hz. The current of its charge in this case will already be determined not by its reactance (usually 10-30 ohms for the network frequency), but by the elements of the converter. As a result, a change in the pulse amplitude (envelope) of the consumed current of the converter will repeat the shape and phase of the input sinusoidal voltage. The availability of the increased voltage (about + 380V) in the operating mode on the capacitor of the line filter indicates the serviceability of the PFC node.
The appearance of the power supply
Main features of the SAMSUNG UE40D6510 device:
Installed matrix (LED panel) LD400CSC-C2.
The matrix control uses the Timing Controller (T-CON) V460HK1-C01.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the SEM5025 PWM controller. As power elements of the LED driver, keys of the STU432S type are used.
The necessary supply voltages for all nodes of the SAMSUNG UE40D6510 TV are generated by the BN44-00427A power supply module or its analogs using SQD3011K, UCC25600, ICE2PCS06 (PFC) microcircuits and 10NM60N, MDF9N50 type power switches.
MainBoard - the main board (motherboard) is a module BN41-01587E, using microchips SDP1001, SDP1005, SDP94, SIL9489ACTU, K4B2G1646C-HCH9, EPM240T100C4N and others.
The tuner BN40-00217A provides the reception of television programs and tuning to channels.