Technical description and composition of the SAMSUNG UE40ES5537K TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE40ES5537K
Chassis / Version: U78A
Panel: CY-LE400BGSV1L
LED backlight: LED 2012SVS40 7032NNB LEFT / RIGHT56 2D Rev1.1 120317
LED driver (backlight): integrated into PSU; 191V 367mA
Power Supply (PSU): BN44-00502A
PWM Power: SPC7011F (PFC = FA5695N), FSFR1700XSL, SQD2011K (Standby)
MainBoard: BN41-01812A BN94-05841V
IC MainBoard: EEPROM: 24C256; Submicom: WT61P805
Tuner: BN40-00239B
Appearance
SAMSUNG UE40ES5537K
General repair guidelines for TV LCD LED
Repair and diagnostics of any electronic device, in particular SAMSUNG UE40ES5537K, it is advisable to start with a careful external examination of internal and external elements. Sometimes, according to visible changes in the components of the device, it is possible to draw some conclusions and determine the direction of further troubleshooting even before the necessary measurements are taken. If charred resistors, swollen electrolytic or cermet capacitors, ring cracks in the solders of the terminals of transformers or heating elements are found, it is advisable to establish the causes and consequences of the malfunction that has arisen, as well as to check the connected elements and assemblies.
If the SAMSUNG UE40ES5537K does not turn on, no control lights on the front panel are on or blinking, therefore, there is a very high probability of a fault in the BN44-00502A power module. In some cases, only the processor power regulator may be faulty. In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
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 breakdown of the key 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 strapping of the PWM regulator microcircuit SPC7011F (FA5695N) - PFC controller, FSFR1700XSL - power controller in operating mode, SQD2011K - PWM standby mode controller are subject to verification.
Sometimes the SAMSUNG UE40ES5537K TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a likelihood of a malfunction of the LED driver - the converter for powering the panel backlight LEDs, or a break in the LED circuit is possible.
In most cases of lack of backlight, it becomes necessary to disassemble the panel in order to check the LEDs, connectors, loops and all contact connections. If one or several LEDs does not work in one line, therefore, they are broken and should be replaced.
It is impossible to detect a break in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and to open their transitions, a voltage of several tens of volts is required. Ideally, a current source is suitable for such purposes.
Attention to the owners! Attempts to repair the TV SAMSUNG UE40ES5537K on its own are not recommended by the manufacturer and can lead to serious negative consequences!
SCHEMATIC MANUAL ---------------> SAMSUNG Chassis U78A/U78B Model: UE26EH45***, UE22ES54***, UE**EH53***,UE**ES55***, UE**ES57***, UE**ES58***, UE**EH5450W
The appearance of the MainBoard BN41-01812A is shown in the figure below:BN41-01812A
BN41-01812A can be used in TVs:
SAMSUNG UE32EH5300P (Panel DE320BGM-C1 ), SAMSUNG UE40ES6307U (Panel LTJ400HV05-L), SAMSUNG UE40ES5537K (Panel CY-LE400BGSV1L), SAMSUNG UE32ES5557K (Panel LE320BGM-C1), SAMSUNG UE40EH5307K (Panel LTJ400HM08-L), SAMSUNG UE37ES6307U (Panel LE370CSA-C1), SAMSUNG UE32ES5500 UE32ES5500W (Panel LE320BGM-C1), SAMSUNG UE32ES5530W UE32ES5530 (Panel LE320BGM-C1), SAMSUNG UE32ES5507K UE32ES5507V (Panel LE320BGM-C1), SAMSUNG UE32ES5537K (Panel LE320BGM-C1), SAMSUNG UE40ES5530W UE40ES5530 (Panel CY-LE400BGSV1L), SAMSUNG UE40ES6100W (Panel LTJ400HV05-L), SAMSUNG UE32EH5300W UE32EH5300 (Panel DE320BGM-C1), SAMSUNG UE32EH5307K UE32EH5307 (Panel DE320BGM-C1), SAMSUNG UE55ES6100W (Panel LTJ550HW08-L), SAMSUNG UE46ES6307U (Panel LTJ460HW05-L), SAMSUNG UE40EH5300W (Panel LTJ-400HM08-L), SAMSUNG UE46ES6100W UE46ES6100 (Panel LTJ460HW05-L), SAMSUNG UE37ES6100W (Panel LE370CSA-C1), SAMSUNG UE50ES5700 UE50ES5700SXZG (Panel LE500BGA-B2), SAMSUNG UE40ES5507K UE40ES5507 (Panel LE400BGA-B1), SAMSUNG UE46EH5300 UE46EH5300W (Panel LTJ460HN05-L), SAMSUNG UE32ES6307 UE32ES6307U (Panel LE320CSM-C1), SAMSUNG UE50ES5507K UE50ES5507 (Panel LE500BGA-B2), SAMSUNG UE40ES5557K UE40ES5557 (Panel LE400BGA-B1), SAMSUNG UE46ES6200 (Panel LTJ460HW05-C), SAMSUNG UE32ES6100 UE32ES6100W (Panel LE320CSM-C1), SAMSUNG UE40ES5500 UE40ES5500W (Panel LTJ400HM09-L), SAMSUNG UE32ES5550 UE32ES5550W (Panel LE320BGM-C1).
PSU Advanced
The UE40ES5537K model uses a BN44-00502A power supply unit using the PFC (Power Factor Correction) node - an active filter of the highest harmonics of the current consumption. In fact, it is a boost converter based on the PWM controller SPC7011F = FA5695N, which eliminates the charge current of the electrolytic capacitor of the rectifier filter directly from the network through open diodes when its charging current is determined by its reactance.
As a result of the operation of the converter, the envelope of the high-frequency pulses of the input current of the converter will repeat the shape and phase of the input voltage. The health of the PFC node can be indirectly judged by the presence of an increased constant voltage (about + 380V) on the capacitor of the rectifier network in operating mode.
The appearance of the power supply
Main features of the SAMSUNG UE40ES5537K device:
Installed matrix (LED panel) CY-LE400BGSV1L.
To power the backlight LEDs, a converter is used, combined with a power supply.
The necessary supply voltages for all nodes of the SAMSUNG UE40ES5537K TV are generated by the power module BN44-00502A, or its analogs using microchips SPC7011F (PFC = FA5695N), FSFR1700XSL, SQD2011K (Standby).
MainBoard - the main board (motherboard) is a BN41-01812A module, using EEPROM chips: 24C256; Submicom: WT61P805 and others.
The tuner BN40-00239B provides the reception of television programs and tuning to channels.
