Technical description and composition of the SAMSUNG UE46EH6030 TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE46EH6030
Chassis / Version: U71I
Panel: LTJ460HW10-V
T-CON: BN41-01892
LED driver (backlight): integrated into PSU
PWM LED driver: SLC3011M, 9012M
MOSFET LED driver: 13NM60N, MDD5N40
Power Supply (PSU): BN44-00552A (PD46CV1-GSM)
PWM Power: FSFR1700XS, SPC7011F, SQD2011K (Standby)
MOSFET Power: 13NM60N (PFC)
MainBoard: BN41-01894A
IC MainBoard: SPI: 25Q40BV, EEPROM: 24C256
Tuner: BN40-00239B
Technical Specifications UE46EH6030
SAMSUNG UE46EH6030
General repair guidelines for TV LCD LED
Possible malfunctions
- SAMSUNG UE46EH6030 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.
In such cases, the BN44-00552A power supply is usually faulty. It is necessary to measure its output supply voltages, and in case of their absence, check the serviceability of power switches (13NM60N (PFC)) of converters and rectifier diodes for the probability of breakdown in PN semiconductor junctions.
In the event of a breakdown in the secondary circuits of the converter, it can usually fail in short circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the main fuse or current sensor at the source of the key most often breaks.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM controllers FSFR1700XS, SPC7011F, SQD2011K (Standby), in the absence of visible damage or explicit short-circuit between the terminals, are checked by replacing with new ones, or obviously working.
- There is no image, but there is sound, it reacts to the remote control. Or the image appears when you turn on and immediately disappears
Often in such cases, there is no LED backlight. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters, as a rule, light up a single 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as an indicator of serviceability. In faulty LEDs, the zener diode will either be cut off or broken into short-circuit.
- The TV does not enter the operating mode, does not respond to the remote control. The indicator on the front panel lights up constantly or blinks.
Repair or diagnostics of the BN41-01894A motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, you should update or replace the software (software). Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing elements SPI: 25Q40BV, EEPROM: 24C256 requires the necessary training and professional skills in repairing modules at the component level. Problems associated with the use of BGA soldering technologies can sometimes be diagnosed by warming up.
If the TV works normally from external devices, but does not tune into television channels, the tuner BN40-00239B may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
Attention to users! Self-repair of a SAMSUNG UE46EH6030 TV without the appropriate qualifications and necessary experience can lead to its complete non-repairability!
Service manual ------------------------> SAMSUNG UE32EH6030* UE40EH6030*, UE46EH6030*, UA32EH6030*, UA40EH6030*, UA46EH6030*, UA55EH6030 CHASSIS U71I .
PSU SCHEMATIC -------------------> Power Supply BN44-00473A.
PSU SCHEMATIC -------------------> Samsung BN44-00520C Power supply
The appearance of the MainBoard BN41-01894A is shown in the figure below:BN41-01894A
BN41-01894A can be used in TVs:
SAMSUNG UE32EH6037K (Panel LTJ320HW10-L), SAMSUNG UE46EH6037 K (Panel LTJ460HW10-L), SAMSUNG UE40EH6037 (Panel LTJ400HV11-L), SAMSUNG UE46EH6030 (Panel LTJ460HW10-V).
The appearance of the power supply
Main features of the SAMSUNG UE46EH6030 device:
Installed matrix (LED-panel) LTJ460HW10-V.
The matrix control uses the Timing Controller (T-CON) BN41-01892.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by a PWM controller SLC3011M, 9012M. As power elements of the LED driver, keys of the type 13NM60N, MDD5N40 are used.
The necessary supply voltages for all nodes of the SAMSUNG UE46EH6030 television are generated by the BN44-00552A power supply module or its analogs using FSFR1700XS, SPC7011F, SQD2011K (Standby) microcircuits and 13NM60N (PFC) type power switches.
MainBoard - the main board (motherboard) is a BN41-01894A module, using microchips SPI: 25Q40BV, EEPROM: 24C256 and others.
The tuner BN40-00239B provides the reception of television programs and tuning to channels.
