Technical description and composition of the SAMSUNG UE40J5120AU TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE40J5120AU
Chassis / Version: LS04
Panel: CY-GH040BGSR1V // CY-GH040BGSV1V
LED backlight: LM41-00099H, LM41-00099K (3228)
T-CON: RUNTK 5538TP ZB 6BE44T
LED driver (backlight): integrated into PSU
PWM LED driver: 7014X
MOSFET LED driver: AOD5N40
Power Supply (PSU): BN44-00703A PSLF121S06A L48S1_ESM
PWM Power: SEM3051, FA6A01N
MOSFET Power: 13N60M2 (PFC), 50R380P
MainBoard: BN41-02098B (BN41-02098C) BN94-08117L
IC MainBoard: F59L1G81A, 25Q40CLSIP, S24C256, K4B2G1646Q-BCKO, NTP7414
Tuner: BN40-00294A
Control: IR: BN96-30902B BN41-02149A H5000_SW
Technical Specifications UE40J5120AU
SAMSUNG UE40J5120AU
General repair guidelines for TV LCD LED
Possible manifestations of defects
- SAMSUNG UE40J5120AU 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.
In such cases, the BN44-00703A power supply is usually faulty. In the absence of the necessary supply voltage in the secondary circuits of the converters, it is necessary to check the power switches (13N60M2 (PFC), 50R380P) and rectifier diodes for possible partial or complete breakdown.
In case of breakdowns of semiconductors in secondary circuits, the converter can usually work abnormally in short circuit mode, and during short circuit in the power elements of the primary circuit, the main fuse often 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) SEM3051, FA6A01N, 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, there is a reaction to the remote control. Or immediately after turning on for a second, the image may appear and immediately disappear.
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 should be remembered that it is not possible to determine the break 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. Then it is necessary to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow you to open the LED in the forward direction or dual LEd are used, then the PN junction of the emergency zener diode can indirectly serve as a health indicator. In case of LED-a malfunction, the zener diode PN junction 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 BN41-02098B motherboard should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, you should update or replace the software (software). Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the elements F59L1G81A, 25Q40CLSIP, S24C256, K4B2G1646Q-BCKO, NTP7414. BGA chip malfunctions are usually easy to detect by warming up.
Before replacing the tuner BN40-00294A, if there is no tuning to the channels, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Once again, remind users! Attempts to self-repair a SAMSUNG UE40J5120AU TV without the appropriate qualifications and necessary experience can lead to its complete non-repairability!
The appearance of the MainBoard BN41-02098B is shown in the figure below:BN41-02098B
BN41-02098B can be used in TVs:
SAMSUNG UE32H4270AU UE32H4270 (Panel HH032AGH-R1), SAMSUNG LT24D310ES (Panel V236BJ1-LE2), SAMSUNG UE40H5000AK (Panel CY-GH040BGLV1V), SAMSUNG UE48H5270AU UE48H5270 (Panel CY-GH048BGLV1V), SAMSUNG UE32H4290AU UE32H4290 (Panel HH032AGH-R2), SAMSUNG UE40H5290AU UE40H5290 (Panel CY-GH040BGLV1V), SAMSUNG UE40J5000AU UE40J5000 (Panel CY-JJ040BGNV2V), SAMSUNG UE40H5020 UE40H5020AK (Panel CY-GH040BGSV1V), SAMSUNG UE40J5100AU (Panel CY-GH040BGSR1V), SAMSUNG T31D310EW (Panel CY-HH032AGSV1H), SAMSUNG UE48J5000AU (Panel CY-JJ048BGEV5V), SAMSUNG UE32H5020AK (Panel CY-GH032BGLV4V), SAMSUNG UE40J5120AU (Panel CY-GH040BGSV1V), SAMSUNG LT32E310EX T32E310EX (Panel CY-GJ032BGEV1V), SAMSUNG UE40H5270 UE40H5270AU (Panel CY-GH048BGLV1V), SAMSUNG UE32J5100AK UE32J5100 (Panel CY-GH032BGSV1V), SAMSUNG UE32H5000AK UE32H5000 (Panel CY-GH032BGLV1V), SAMSUNG UE48H5000 UE48H5000AK (Panel CY-GH048CSLV1V), SAMSUNG UE32J5120AK UE32J5120 (Panel CY-GH032BGSV1V).
The appearance of the power supply
Main features of the SAMSUNG UE40J5120AU device:
Installed matrix (LED-panel) CY-GH040BGSR1V or CY-GH040BGSV1V.
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 power elements of the LED driver, keys of the AOD5N40 type are used.
The necessary supply voltages for all nodes of the SAMSUNG UE40J5120AU TV are generated by the BN44-00703A power module or its analogs using SEM3051, FA6A01N microcircuits and 13N60M2 (PFC), 50R380P type power switches.
MainBoard - the main board (motherboard) is a BN41-02098B module, using chips F59L1G81A, 25Q40CLSIP, S24C256, K4B2G1646Q-BCKO, NTP7414 and others.
The tuner BN40-00294A provides the reception of television programs and tuning to channels.
