Technical description and composition of the SAMSUNG UE40ES6550S TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE40ES6550S
Chassis / Version: Ver. TE02
Panel: LTJ400HV05-V
LED backlight: 2012SVS40 7032NNB RIGHT56 3D Rev1.1 120317; 2012SVS40 7032NNB LEFT56 3D Rev1.1 120317
T-CON: BN41-01789A BN95-00577A LSJ400HV05-S
LED driver (backlight): integrated into PSU; 163V 530mA (55), 136V 530mA (46)
PWM LED driver: SLC5012M (MAP3312B)
MOSFET LED driver: KF9N25D (250V 7.5A)
Power Supply (PSU): BN44-00520C PD46B1QE_CDY REV1.1
PWM Power: UCC25600, SPC7011F (PFC = FA5695N), SQD2011K (Standby = STR2A151D)
MOSFET Power: TK8A50D
MainBoard: BN41-01807A BN94-05625P
IC MainBoard: CPU: WT61P805 (Standby); NAND Flash: KLM2G1HE3F-B001; DRAM: K4B2G1646C-HCK0; SOUND: NTP7412S
Tuner: BN40-00236A DNSD243VH144A
Control: Bluetooth Module BN96-21431C (WIBT30A) and Wi-Fi Module BN59-01148B (WIDT20R)
Appearance
SAMSUNG UE40ES6550S
General repair guidelines for TV LCD LED
A malfunction of the power supply is often manifested corny - the TV does not turn on, does not make any sounds, does not light up and does not blink with any indicators. In the general case, first of all, it is necessary to check the electrolytic capacitors of the secondary rectifier filters and the fuse at the input of the network. If it is broken, then you should check for breakdown of the PN junctions of the rectifier bridge diodes and the key transistor of the converter, which can either be on a separate radiator or integrated with a PWM controller in a common chip.
It should be remembered that in the practice of repair, usually the power switches in switching power supplies (SMPS) do not fail due to their poor quality and, in such cases, it is necessary to look for the cause that led to a malfunction and provoked a breakdown of the key. Most often, the culprits of the accident are dried electrolytic capacitors or dangling resistors in the primary circuit, or the PWM controller chip itself may be faulty. It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuits.
If the SAMSUNG UE40ES6550S does not have an image, but there is sound and the TV is controlled by the remote control, a malfunction in the backlight circuits of the LTJ400HV05-V panel is likely. LEDs or their power converter - LED driver may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to verify the operability of the electrolytic capacitors of the rectifier filter supplying the backlight unit.
A malfunction in the backlight circuits often occurs due to an open or short circuit in the LED strip circuit 2012SVS40 7032NNB RIGHT56 3D Rev1.1 120317 and 2012SVS40 7032NNB LEFT56 3D Rev1.1 120317. The panel itself needs to be disassembled and the LEDs checked, their rations, as well as the reliability of the connections in the connectors and rations of the conclusions of the connectors.
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. With a multimeter, you can check the absence of a short circuit in each LED and the integrity of the transition of the built-in protective zener diode, which with a certain degree of probability can serve as a sign of serviceability. If the zener diode is broken or broken, the LED must be replaced.
The motherboard BN41-01807A BN94-05625P is subject to verification 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.
Malfunction of the tuner BN40-00236A DNSD243VH144A is established after checking the software and all supply voltages at its terminals.
Once again, remind users! Attempts to self-repair a SAMSUNG UE40ES6550S TV without the appropriate qualifications and experience can lead to its complete non-repairability!
PSU SCHEMATIC -----------> Power supply BN44-00520C.
SCHEMATIC MANUAL ------------> SAMSUNG Chassis U78A/U79A Model: UE**ES61***, UE**ES63***, UE**ES65***, UE**ES67***, UE**ES68***.
The appearance of the MainBoard BN41-01807A is shown in the figure below:
BN41-01807A
BN41-01807A can be used in TVs:
SAMSUNG UE40ES6550S (Panel LTJ400HV05-V), SAMSUNG UE46ES6547U UE46ES6547 (Panel LTJ460HW06-L), SAMSUNG UE40ES7207U (Panel LTJ400HL10-L), SAMSUNG UE46ES6540 UE46ES6540U (Panel LTJ460HW06-L), SAMSUNG UE40ES6750 MXRU (Panel LTJ400HV08-L), SAMSUNG UE32ES6727U UE32ES6727 (Panel LTJ320HW06-L), SAMSUNG UE40ES6757 UE40ES6757M (Panel LTJ400HV08-L), SAMSUNG UE32ES6550 UE32ES6550S (Panel LE320CSM-C1), SAMSUNG UE40ES6540S (Panel LTJ400HV07-L), SAMSUNG UE55ES6760 UE55ES6760SXZG (Panel LTJ550HW10-B), SAMSUNG UE32ES6540 UE32ES6540S (Panel LE320CSM-C1), SAMSUNG UE40ES6727 UE40ES6727U (Panel LTJ400HV08-L), SAMSUNG UE32ES6757M (Panel LE320CSM-C2).
PSU Advanced
The BN44-00520C power module is installed in the UE40ES6550S TV using the PFC (Power Factor Correction) scheme acting as an active filter to eliminate the higher harmonic components of the current consumption. The boost converter based on the PWM controller SPC7011F = FA5695N does not allow the input rectifier filter's electrolytic capacitor to be connected to the network directly through open diodes when its reactance determines the charge current (about 15-30 ohms at a frequency of 50 Hz). As a result of the conversion, the charging current of the capacitor will be determined in such a way that the envelope of the high-frequency pulses of the input current will repeat the phase and shape of the sine wave of the input voltage. The health check of the PFC unit is carried out by measuring the DC voltage on the capacitor of the rectifier network. In operating mode, it should be around 380V, in standby approximately 300V.
The appearance of the power supply
Main features of the SAMSUNG UE40ES6550S device:
Installed matrix (LED-panel) LTJ400HV05-V.
The matrix control uses the Timing Controller (T-CON) BN41-01789A.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by the SLC5012M PWM controller (MAP3312B). As the power elements of the LED driver, keys of the type KF9N25D (250V 7.5A) are used.
The necessary supply voltages for all nodes of the SAMSUNG UE40ES6550S TV are generated by the BN44-00520C power supply module or its analogs using UCC25600, SPC7011F (PFC = FA5695N), SQD2011K (Standby = STR2A151D) microcircuits and TK8A50D power switches.
MainBoard - the main board (motherboard) is a BN41-01807A module, using CPU chips: WT61P805 (Standby); NAND Flash: KLM2G1HE3F-B001; DRAM: K4B2G1646C-HCK0; SOUND: NTP7412S and others.
The tuner BN40-00236A DNSD243VH144A provides the reception of television programs and tuning to channels.
