
SAMSUNG LED
Model: UE40J5510AU
Chassis / Version: HS01
Panel: CY-GJ040BGSV3V
T-CON: RUNTK 5538TP ZA
LED driver (backlight): integrated into PSU
PWM LED driver: 7014X
MOSFET LED driver: KF3N40W, 5N40
Power Supply (PSU): BN44-00703G L48S1_FSM PSLF121S07A
PWM Power: S3051 (PFC), FA6A20 (PWM resonant)
MOSFET Power: 14NM50N, 13N60M2
MainBoard: BN41-02353B
IC MainBoard: CPU: SDP1415, EMMC: THGBMBG5D1KBAIT, RAM: K4B4G16460-BCMA
Tuner: BN40-00318A DNTS243H5A
Technical Specifications UE40J5510AU
SAMSUNG UE40J5510AU
General repair guidelines for TV LCD LED
Possible manifestations of defects
- SAMSUNG UE40J5510AU TV does not turn on, does not respond to the remote control and control panel buttons, indicators do not light up and do not blink.
In such cases, the fault should be sought first in the BN44-00703G power supply module. It is then necessary to measure its output voltages and, if they are absent, you should check the power switches (14NM50N, 13N60M2) and rectifier diodes of the converters for a short circuit probability.
In case of breakdowns of diodes in the secondary circuits, the converter can operate in emergency short circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key 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. These can be circuits supplying the PWM controller, damping or frequency-setting circuits, or elements of OOS (negative feedback) in the stabilization circuit. PWM controllers (PWM) S3051 (PFC), FA6A20 (PWM resonant), in the absence of external damage and short circuit between the terminals, are checked by replacing with obviously good ones.
- There is no image, there is sound, it responds to the remote control. Or the image may appear for a second when turned on and immediately disappears.
Failure in most such cases is detected in the nodes and backlight elements of the LED panel. 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 line of series-connected LEDs without a special current source, and for this purpose it is not safe to use any voltage sources above 12V for them. Then it remains only to open the panel and check each LED separately. Usually, Chinese 9V-powered multimeters light up a single 3-volt LED, if you connect the probes in the forward direction, the red probe to the anode, and the black to the cathode. In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as a health indicator. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the BN41-02353B 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). If it is not possible to replace the MB (SSB) card, you need to check the health of its elements - CPU: SDP1415, EMMC: THGBMBG5D1KBAIT, RAM: K4B4G16460-BCMA. Defective components should be replaced.
If a tuner BN40-00318A DNTS243H5A is suspected of malfunction, first of all, it is necessary to verify the correctness of the software, as well as the presence of the necessary voltage levels and pulses of data exchange with the processor via the I2C bus at the corresponding terminals of the tuner.
TV users and owners need to remember that attempts to self-repair a SAMSUNG UE40J5510AU TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!

BN41-02353B
BN41-02353B can be used in TVs:
SAMSUNG UE40J6390 (Panel CY-GH040CSLV1V), SAMSUNG UE40J5530AU UE40J5530 (Panel CY-GJ040BGSV5V), SAMSUNG UE40J5500AU (Panel CY-GJ040BGSV5V), SAMSUNG UE40J5550 UE40J5550AU (Panel CY-GJ040BGSV1V), SAMSUNG UE40J6330AU (Panel CY-GH040CSLVFV), SAMSUNG UE32J6300 UE32J6300AU (Panel CY-GH032CSLV5V), SAMSUNG UE48J6200AU (Panel CY-GH048CSLVAV), SAMSUNG UE48J5510AU (Panel CY-GJ048BGLV3V), SAMSUNG UE32J6500AU UE32J6500 (Panel CY-WJ032CGLV2V), SAMSUNG UE40J5520AU UE40J5520 (Panel CY-GJ040BGSV5V), SAMSUNG UE43J5500 UE43J5500AU (Panel T430HVF01.0), SAMSUNG UE40J6200AU UE40J6200 (Panel CY-GH040CSLV8V), SAMSUNG UE32J5550AU UE32J5550 (Panel CY-GJ032BGAB3V), SAMSUNG UE32J5500AU (Panel T320HVF05.5), SAMSUNG UE40J6590 UE40J6590AU (Panel CY-WJ040CGLV1V), SAMSUNG UE40J5510AU (Panel CY-GJ040BGSV3V).
The appearance of the power supply
Main features of the SAMSUNG UE40J5510AU device:
Installed matrix (LED panel) CY-GJ040BGSV3V.
The matrix control uses the Timing Controller (T-CON) RUNTK.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by a 7014X PWM controller. As the power elements of the LED driver, keys of the type KF3N40W, 5N40 are used.
The necessary supply voltages for all nodes of the SAMSUNG UE40J5510AU TV are generated by the BN44-00703G power module or its analogs using S3051 (PFC), FA6A20 (PWM resonant) microcircuits and power switches of the type 14NM50N, 13N60M2.
MainBoard - the main board (motherboard) is a BN41-02353B module, using CPU chips: SDP1415, EMMC: THGBMBG5D1KBAIT, RAM: K4B4G16460-BCMA and others.
The tuner BN40-00318A DNTS243H5A provides the reception of television programs and tuning to channels.