Technical description and composition of the SAMSUNG UE40EH5000 TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE40EH5000 UE40EH5000W
Panel: LTJ400HM801-V // LTJ400HM08-L // CY-DE400BGSV1L
T-CON: BN41-01797A LSJ400HM06-S
LED driver (backlight): integrated into PSU
PWM LED driver: SLC2012M
Power Supply (PSU): BN44-00496A
PWM Power: SSC2S110
MainBoard: BN41-01795A
IC MainBoard: WT61P805, EEprom: 24C256C4VCX, SPI Flash: 25Q40BVSIP, NAND: K9F1G08U0D
Tuner: BN40-00231A
Control: Remote: AA59-00602A, IR: BN96-22413B (BN41-01840B)
Technical Specifications UE40EH5000
SAMSUNG UE40EH5000
General repair guidelines for TV LCD LED
Possible malfunctions
- SAMSUNG UE40EH5000 TV does not turn on. There are no signs of operability. The indicators on the front panel do not light or flash, the TV does not respond to the remote control and control buttons.
Sometimes, with such manifestations, a defect can be caused by faulty elements in the main power module BN44-00496A. It is necessary to measure its output voltage, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for a possible breakdown (short circuit).
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the main fuse and, less often, the current sensor at the source of the key most 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. The PWM controller (PWM) SSC2S110, in the absence of external damage and a short circuit between the terminals, is checked by replacing a known-good one.
- 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.
The most likely in these cases is a malfunction of the LED backlight. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
When trying to identify a break in the LED lines, it should be borne in mind that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
- The indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the BN41-01795A 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). In cases of attempts to repair the MB board (SSB), it is necessary to check the health of its elements - WT61P805, EEprom: 24C256C4VCX, SPI Flash: 25Q40BVSIP which may require replacement with new ones. If the BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
If a tuner BN40-00231A 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 supply voltage levels and data exchange pulses with the processor via the I2C bus at the corresponding tuner pins.
It should be remembered! Attempts to self-repair a SAMSUNG UE40EH5000 TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
SAMSUNG UE40EH5000W Ver. TS01, Panel LTJ400HM08-L - Backlight Led: LUMENS 40-3535LED-60EA-R/L D1GE-400SCB--R3(12,04,09); BN96-21486A (BN41-01824A).
FIRMWARE Weltrend ---------------> SAMSUNG UE40EH5000
The appearance of the MainBoard BN41-01795A is shown in the figure below:BN41-01795A
BN41-01795A can be used in TVs:
SAMSUNG UE32EH4000 UE32EH4000W (Panel LTJ320AP03-L), SAMSUNG UE32EH5000W (Panel DE320BGM-C1), SAMSUNG UE26EH4000W (Panel T260XVN01.1), SAMSUNG UE32EH5007K UE32EH5007 (Panel LTJ320HN07-L), SAMSUNG UE32EH5047K UE32EH5047 (Panel DE320BGA-B1), SAMSUNG UE40EH5007K (Panel CY-DE400BGSV1L), SAMSUNG UE32EH5057K (Panel DE320BGA-B1), SAMSUNG UE40FH5007K (Panel CY-DF400BGLV1V), SAMSUNG UE40EH5047K (Panel LTJ400HM08-L), SAMSUNG UE40EH5057K UE40EH5057 (Panel CY-DE400BGSV1L), SAMSUNG UE40EH5050W UE40EH5050 (Panel CY-DE400BGSV1L), SAMSUNG UE40EH5000 UE40EH5000W (Panel LTJ400HM801-V), SAMSUNG UE32EH5000K UE32EH5000 (Panel LTJ320HN07-L), SAMSUNG UE32EH5000W UE32EH5000 (Panel DE320BGM-C1), SAMSUNG LE32E420E2W LE32E420 (Panel LTF320AP13), SAMSUNG UE32EH4030 UE32EH4030W (Panel DE320AGH-C2), SAMSUNG UE46EH5057K UE46EH5057 (Panel LTJ460HN05-L), SAMSUNG UE40EH5040 UE40EH5040W (Panel CY-DE400BGSV1L).
The appearance of the power supply
Main features of the SAMSUNG UE40EH5000 device:
Installed matrix (LED panel) LTJ400HM801-V or LTJ400HM08-L or CY-DE400BGSV1L.
The matrix control uses the Timing Controller (T-CON) BN41-01797A.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the SLC2012M PWM controller.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE40EH5000 TV is carried out by the BN44-00496A power module, or its analogs using SSC2S110 microcircuits.
MainBoard - the main board (motherboard) is a BN41-01795A module using WT61P805 chips, EEprom: 24C256C4VCX, SPI Flash: 25Q40BVSIP, NAND: K9F1G08U0D and others.
The tuner BN40-00231A provides the reception of television programs and tuning to channels.
