technical description and composition of the TV SHARP LC-43CUF8472ES, type of panel and applicable modules. The composition of the modules.SHARP LED
Model: LC-43CUF8472ES
Chassis / Version: T.MS6488E.U703
Panel: LC-43CUF8472ES
LED backlight: CRH-P4330300509672-REV1.1 BC
T-CON: 6870C-0552A 6871L-4024B
LED driver (backlight): integrated into PSU
PWM LED driver: BD9211F
Power Supply (PSU): PW.188W2.711
MOSFET Power: N-FET TO-220
MainBoard: T.MS6488E.U703
IC MainBoard: NAND: MX30LF4G18AC-TI
Tuner: CDT-9NT372RF-10
Technical Specifications LC-43CUF8472ES
SHARP LC-43CUF8472ES
General repair guidelines for TV LCD LED
Possible malfunctions
- The SHARP LC-43CUF8472ES TV does not turn on, does not respond to the remote control and the control panel buttons, the indicators do not light or flash.
Failure in such cases should begin to be sought in the PW.188W2.711 power supply circuits. It is necessary to measure its secondary output voltages, and in case of their absence, check the power switches (N-FET TO-220) and rectifier diodes in the converters for a short circuit.
In case of breakdowns in the secondary circuits, the converter, as a rule, can emergency work in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse usually 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), 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, there is sound, all other functions of the TV work. When turned on, the image may sometimes appear for a second.
In some of these cases, the malfunction is caused by a lack of backlighting on the display. More often the reason for this is the breakdown of the LEDs, or poor contact in the connectors of the strips, less often the LED driver may be malfunctioning.
It should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels with 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 malfunction, 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 T.MS6488E.U703 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). Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Testing or replacing NAND elements: MX30LF4G18AC-TI requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can sometimes be diagnosed by warming up.
Before replacing the tuner CDT-9NT372RF-10, if there is no tuning for the channels, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Attention TV owners! Attempts to self-repair SHARP LC-43CUF8472ES are not recommended by the manufacturer and can lead to serious negative consequences!
The appearance of MainBoard T.MS6488E.U703 is shown in the figure below:
T.MS6488E.U703
The appearance of the power supply
Main features of the SHARP LC-43CUF8472ES device:
The matrix (LED panel) LC-43CUF8472ES is installed.
The matrix control uses the Timing Controller (T-CON) 6870C-0552A.
To power the backlight LEDs, a converter is used, combined with the power supply, controlled by the BD9211F PWM controller.
The necessary supply voltages for all nodes of the SHARP LC-43CUF8472ES TV are generated by the PW.188W2.711 power module or its analogs using power switches of the N-FET TO-220 type.
MainBoard - the main board (motherboard) is a module T.MS6488E.U703, using NAND chips: MX30LF4G18AC-TI and others.
The tuner CDT-9NT372RF-10 provides the reception of television programs and tuning to channels.
Brand: SHARP, Model: LC-43CUF8472ES.
Briefly from the TV: LCD, 4K UHD, diagonal 43 "(109 cm), Smart TV, Wi-Fi, HDMI: 3, USB: 3, there is support for DVB-T2, hotel.
The composition uses MainBoard T.MS6488E.U703 and LCD-panel LC-43CUF8472ES.
Power Supply Unit (PSU) PW.188W2.711 Power Supply.
LED TV SHARP LC-43CUF8472ES with LCD display LC-43CUF8472ES, diagonal size 43 "(109 cm) 16: 9 format. The brightness of the screen 280 cd / m² is provided by LED (LED) backlight. Dynamic contrast ratio of 1 000 000: 1 is achieved by control operation of LEDs (LED) depending on the brightness of the plot.The LCD panel uses direct illumination with the rear LEDs (relative to the screen) Direct LED.
You can watch movies in the highest possible quality UHD with a resolution of 3840x2160 pixels in the 4K UHD standard.
The LC-43CUF8472ES TV is equipped with SMART software, as well as the ability to work with applications and on the Internet. Connecting to a network can be done via Wi-Fi.
Supported media file formats: MP3, WMA, MPEG4, HEVC (H.265), MKV, JPEG.
The power of the sound system 20 W (2x10 W) provides two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, HDMI x3, MHL, USB x3, Ethernet (RJ-45), Bluetooth, Wi-Fi, WiDi, Miracast. An output for connecting headphones is provided.
The digital tuner is capable of receiving television channels in the standards DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2.
The power consumed by the TV from the network in operating mode is 115 watts.
Overall dimensions: with stand 966x596x185 mm, without stand 966x571x67 mm.
TV Weight: 8.3 kg.
Attention! The panel of the LC-43CUF8472ES LED TV SHARP LC-43CUF8472ES is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.
