Technical description and composition of the LG 43UH610V TV, panel type and applicable modules. The composition of the modules.LG LED
Model: 43UH610V
Chassis / Version: UA65S / UD65S
Panel: HC430DGN-SLNX5-5112
LED backlight: UF64_UHD_A (L)
T-CON: V16 43/49 / 55UHD_TM120_v0.1
LED driver (backlight): integrated into PSU
Power Supply (PSU): EAX66883501
MOSFET Power: 60R580
MainBoard: EAX66943504
IC MainBoard: CPU: LGE6551-DA, EMMC: THGBMBG5D1KBAIL, EEPROM: 24C256
Tuner: TDJM-G301D EBL61741501
Control: IR: YW-F01LD V1.4, Wi-Fi: EAT61813903 TWFM-B006D
Specifications 43UH610V
LG 43UH610V
General repair guidelines for TV LCD LED
Possible manifestations of defects
- The LG 43UH610V TV does not turn on, does not respond to the remote control and the control panel buttons, the indicators do not light or flash.
With such manifestations, in some cases, the EAX66883501 power module is faulty. In the absence of the necessary supply voltages in the secondary circuits of the converters, it is necessary to check the power switches (60R580) and rectifier diodes for a possible partial or complete breakdown.
In case of any breakdowns in the secondary circuits, the converter can operate in emergency short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key more 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 (OOS) stabilization circuits. PWM controllers (PWM), if they do not have visible damage to the chassis 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 can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
It should be remembered that it is not possible to determine the break in the LED lines without disassembling the panels using a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required. Then it is necessary to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow you to open the LED in the forward direction or dual LEd are used, then the PN junction of the emergency zener diode can indirectly serve as a health indicator. In case of LED-a failure, the zener diode PN junction will either be cut off or broken into short-circuit.
- 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 EAX66943504 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 complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, sometimes it may be necessary to replace its CPU chips: LGE6551-DA, EMMC: THGBMBG5D1KBAIL, EEPROM: 24C256 and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Before changing the tuner TDJM-G301D EBL61741501, if it is not possible to tune to television channels, make sure that there are supply voltages that need to be measured on the corresponding terminals of the tuner and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
Attention! Users and owners of 43UH610V TVs who do not have the appropriate qualifications, knowledge and experience are strongly advised against self-repair attempts in order to avoid negative consequences that could lead to complete non-repairability of the device.
schematic diagram -----------> LG 43UH610V Chassis UD65S
The appearance of the MainBoard EAX66943504 is shown in the figure below:EAX66943504
EAX66943504 can be used in TVs:
LG 43UH619V (Panel HC430DGN-SLNXG-211X), LG 49UH603V (Panel LC490DGE (FJ)(M2)), LG 43UH603V (Panel LC430DGE (FJ)(M2)), LG 43UH610V (Panel HC430DGN-SLNX5-5112).
The appearance of the power supply
Main features of the device LG 43UH610V:
Installed matrix (LED-panel) HC430DGN-SLNX5-5112.
The matrix control uses the Timing Controller (T-CON) V16.
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 LG 43UH610V TV is carried out by the EAX66883501 power module, or its analogues using power switches of the 60R580 type.
MainBoard - the main board (motherboard) is an EAX66943504 module using CPU chips: LGE6551-DA, EMMC: THGBMBG5D1KBAIL, EEPROM: 24C256 and others.
Tuner TDJM-G301D EBL61741501 provides the reception of television programs and tuning to channels.