Technical description and composition of the SAMSUNG UE50ES6907U TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE50ES6907U UE50ES6907
Chassis / Version: AD01
Panel: SE500CSA-B1 // T500HVN01.6
T-CON: T500HVN01.3 Ctrl BD 50T03-C08
LED driver (backlight): integrated into PSU
Power Supply (PSU): BN44-00543A PD50B2Q_CDY
MainBoard: BN41-01897A BN94-05375V
IC MainBoard: NAND: K9F1G08U0D, RAM: K4B1G1646D-HCH9, SPI Flash: 25Q40, Eeprom: 24C256, Sound: NTP7412S
Tuner: BN40-00238B DNTD243VH144AA
Control: AA59-00570A
Appearance
SAMSUNG UE50ES6907U
General repair guidelines for TV LCD LED
Possible malfunctions
- SAMSUNG UE50ES6907U TV does not turn on at all. There is no reaction to the remote control and control buttons from the front panel. Indicator lights do not light or flash.
Sometimes, with such manifestations, a defect is caused by faulty elements in the main power module BN44-00543A. It is necessary to measure its output voltages and, if they are absent, it is necessary to check the power switches and rectifier diodes of the converters for a short circuit probability.
In case of diode breakdowns in the secondary circuits, the converter can operate in emergency short-circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key usually 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 the excess of maximum current or voltage values. 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), in the absence of external damage and short circuit between the terminals, are checked by replacing with obviously good ones.
- There is no image, but there is sound, it reacts to the remote control. Or the image appears when you turn it on and immediately disappears
As a rule, in such cases there is no display backlight. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
- 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 BN41-01897A 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). Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the NAND elements: K9F1G08U0D, RAM: K4B1G1646D-HCH9, SPI Flash: 25Q40, Eeprom: 24C256, Sound: NTP7412S. BGA chip malfunctions are usually easy to detect by warming up.
If a tuner BN40-00238B DNTD243VH144AA is suspected of malfunction, first of all, it is necessary to verify the correctness of the software, as well as the presence of the required voltage levels and the data exchange pulses with the processor via the I2C bus on the corresponding tuner pins.
Owners and users of the SAMSUNG UE50ES6907U TV should remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
T500HVN01.6 LED Strips:
50SNB 3D-7032LED-MCPCB-R / L, V1LE-500SMA-R1 M612 L / R 00137 50FV93
The appearance of the MainBoard BN41-01897A is shown in the figure below:BN41-01897A
BN41-01897A can be used in TVs:
SAMSUNG UE32FH4003W (Panel CY DF320AGLV1V), SAMSUNG UE39EH5003 UE39EH5003W (Panel DE390BGA-C1), SAMSUNG UE50ES6907U UE50ES6907 (Panel SE500CSA-B1), SAMSUNG UE32EH4003 UE32EH4003W (Panel DE320AGE-V2).
The appearance of the power supply
Main features of the SAMSUNG UE50ES6907U device:
Installed matrix (LED-panel) SE500CSA-B1 or T500HVN01.6.
The matrix control uses the Timing Controller (T-CON) T500HVN01.3.
To power the backlight LEDs, a converter is used, combined with a power supply.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE50ES6907U TV is carried out by the power module BN44-00543A, or its analogues.
MainBoard - the main board (motherboard) is a BN41-01897A module, using NAND chips: K9F1G08U0D, RAM: K4B1G1646D-HCH9, SPI Flash: 25Q40, Eeprom: 24C256, Sound: NTP7412S and others.
The tuner BN40-00238B DNTD243VH144AA provides the reception of television programs and tuning to channels.
