Technical description and composition of the SAMSUNG UE55ES6800 TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE55ES6800 UE55ES6800S
Chassis / Version: U78A / U79
Panel: LTJ550HW10-B
LED backlight: Edge Led 7032 6V
T-CON: BN41-01789A
LED driver (backlight): integrated into PSU; 163V 530mA (55)
Power Supply (PSU): BN44-00521C D55B1QE_CDY
PWM Power: D2011K
MOSFET Power: K8A50D
MainBoard: BN41-01807A
IC MainBoard: WT61P805, KLM2G1HE3F-B001, K4B2G1646C-HCK0, NTP7412S
Tuner: BN40-00236A
Technical Specifications UE55ES6800
SAMSUNG UE55ES6800
General repair guidelines for TV LCD LED
Possible malfunctions
- The SAMSUNG UE55ES6800 TV does not turn on, does not respond to the remote control and the control panel buttons, does not light up or blink indicators.
With such manifestations, a malfunction is most likely to be detected in the BN44-00521C power module. Then it is necessary to measure its output voltages and, in case of their complete or partial absence, it is necessary to check the serviceability of power switches (K8A50D) and rectifier diodes of the converters for the presence of a possible short circuit.
In the event of a breakdown in the secondary circuits of the converter, it can usually fail in short circuit mode, and in case of a short circuit in the power elements of the primary circuit, the mains fuse or current sensor at the source of the key most often breaks.
Breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback circuits (OOS) of stabilization. PWM controllers (PWM) D2011K, if they do not have visible damage to the case and open short circuit between the terminals, are usually checked by replacement.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
In some of these cases, the malfunction is caused by a lack of backlighting on the display. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To detect a break in the LED lines without disassembling the panel, a current source is required. It is impossible to open transitions connected in series with a simple multimeter; voltage of several tens of volts is necessary.
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the BN41-01807A 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 board (SSB), you need to check the health of its elements - WT61P805, KLM2G1HE3F-B001, K4B2G1646C-HCK0, NTP7412S. Defective components should be replaced.
If there is no reception of television channels, but the TV is working properly from external devices, first of all, check the voltage of the tuner BN40-00236A and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.
Once again, remind users! Attempts to self-repair a SAMSUNG UE55ES6800 TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!
Service manual and schematic diagram -----------------> SAMSUNG UE55ES6800 Chassis U78A/U79.
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).
The appearance of the power supply
Main features of the SAMSUNG UE55ES6800 device:
Installed matrix (LED panel) LTJ550HW10-B.
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.
The necessary supply voltages for all nodes of the SAMSUNG UE55ES6800 TV are generated by the BN44-00521C power module or its analogs using D2011K microcircuits and K8A50D type power switches.
MainBoard - the main board (motherboard) is a module BN41-01807A, using microchips WT61P805, KLM2G1HE3F-B001, K4B2G1646C-HCK0, NTP7412S and others.
The tuner BN40-00236A provides the reception of television programs and tuning to channels.
