Technical description and composition of the SAMSUNG UE32N4010 TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE32N4010 UE32N4010AU
Chassis / Version: LA01
Panel: CY-JN032AGLR4V
LED backlight: LM41-00616A L1_N5K_C2H_FAM_S5 (1) R1.0_S1D_100
LED driver (backlight): integrated into MainBoard
PWM LED driver: BD9413F
Power Supply (PSU): A5919_FSM 19V 3.17A BN44-00838A
MainBoard: BN41-02582B BN94-13043H
IC MainBoard: CPU: SENK20-MS, NAND ESTM NT17L 2M
Tuner: BN37-00331B
Control: IR: BN41-02515A
Technical Specifications UE32N4010AU
SAMSUNG UE32N4010
General repair guidelines for TV LCD LED
Possible malfunctions
- SAMSUNG UE32N4010 TV does not turn on at all. The control lights do not light or flash. The TV on the remote control and the control panel buttons do not respond.
Failure in such cases should begin to be sought in the power supply circuits A5919_FSM. It is necessary to measure its output voltages and, if they are absent, to check the serviceability of power switches and rectifier diodes in the converters for possible breakdown.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the main fuse and, less often, the current sensor at the source of the key are most often cut off.
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 damping circuits, as well as in Negative Stabilization Feedback. PWM circuits are usually checked by replacement with new ones, or known to be working.
- There is no image, but there is sound and all other functions work. Sometimes when you turn on the image for a second appears and disappears.
In some of these cases, a malfunction is caused by a lack of display backlight. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters, as a rule, light up a single 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as an indicator of serviceability. In faulty LEDs, the zener diode will either be cut off or broken into short-circuit.
- The indicator blinks or glows constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the BN41-02582B motherboard should begin by checking the stabilizers and power converters needed to power the microcircuits and matrix. If necessary, you should update or replace the software (software). When repairing an MB board, you need to check its CPU components: SENK20-MS, NAND ESTM NT17L 2M. Defective items should be replaced. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
If there is no reception of television channels, but the TV works properly from external devices, first of all, check the voltage of the tuner BN37-00331B and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.
We recommend the owners of the UE32N4010 TV for repair only to qualified specialists with the necessary work experience! Attempts to repair it yourself without the appropriate knowledge and skills can lead to irreversible negative consequences!
The appearance of the MainBoard BN41-02582B is shown in the figure below:BN41-02582B
The appearance of the power supply
Main features of the SAMSUNG UE32N4010 device:
Installed matrix (LED panel) CY-JN032AGLR4V.
To power the backlight LEDs, a converter is used, combined with the main board BN41-02582B, controlled by the BD9413F PWM controller.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE32N4010 TV is carried out by the power supply module A5919_FSM, or its analogs.
MainBoard - the main board (motherboard) is a BN41-02582B module using CPU chips: SENK20-MS, NAND ESTM NT17L 2M and others.
The tuner BN37-00331B provides the reception of television programs and tuning to channels.
