Technical description and composition of the DAEWOO L43S645VTE TV, type of panel and applicable modules. The composition of the modules.DAEWOO LED
Model: L43S645VTE
Chassis / Version: TP.MS3463S.PB782
Panel: LVF430LGDO E3 V11
LED backlight: JL.D43081330-140FS-M
LED driver (backlight): integrated into MainBoard
PWM LED driver: MP3398A
MOSFET LED driver: ME15N10-G
Power Supply (PSU): integrated into MainBoard
PWM Power: LD7536R PWM SOT23-6
MOSFET Power: 7N65
MainBoard: TP.MS3463S.PB782 3MS63AX2
IC MainBoard: SPI FLASH: 25Q64, AUDIO: TPA3110LD2
Tuner: XF-3SDT-H (R840)
Technical Specifications L43S645VTE
DAEWOO L43S645VTE
General repair guidelines for TV LCD LED
Possible manifestations of defects
- DAEWOO L43S645VTE 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.
First of all, in such cases, you should make sure that the common switching power supply (IIP) is the AC / DC voltage converter of the mains voltage. All source elements in this TV model are located on the MainBoard TP.MS3463S.PB782 main board. It is necessary to measure the output voltages in its secondary circuits, and if they are completely absent, check the serviceability of the power switches (7N65) and rectifier diodes for possible breakdown (short circuit).
In case of any breakdown of semiconductors in the secondary circuits, the converter can usually work normally in emergency short circuit mode. There are no output voltages. And with a short circuit in the power elements of the primary circuit, as a rule, the mains fuse breaks and less often the current sensor at the source of the key.
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) LD7536R PWM SOT23-6, 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.
The faulty usually in these cases is the backlight matrix (LED-panel). 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.
When trying to detect a break in the LED lines, it should be taken into account 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 TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the TP.MS3463S.PB782 motherboard should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). If it is not possible to replace the MB (SSB) card, you need to check the health of its elements - SPI FLASH: 25Q64, AUDIO: TPA3110LD2. Defective components should be replaced.
If the TV works normally from external devices, but does not tune into television channels, the tuner XF-3SDT-H (R840) may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding conclusions. 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.
We recommend the owners of the L43S645VTE TV for repair only to qualified specialists with the necessary work experience! Self-repair attempts without the appropriate knowledge and skills can lead to irreversible negative consequences!
FIRMWARE FOR SPI FLASH -----------> DAEWOO L43S645VTE, Main: TP.MS3463S.PB782 3MS63AX2, Panel: LVF430LGDO E3 V11
The appearance of MainBoard TP.MS3463S.PB782 is shown in the figure below:
TP.MS3463S.PB782 can be used in TVs:
DAEWOO L32S645VTE (Panel ST3151A05-8 VER.2.4), TELEFUNKEN TF-LED32S20T2 (Panel ST3151A05-8 Ver.2.5 LVW320CSDX), TELEFUNKEN TF-LED32S17T2 (Panel ST3151A05-8).
Main features of the device DAEWOO L43S645VTE:
Installed matrix (LED-panel) LVF430LGDO E3 V11.
To power the backlight LEDs, a converter is used, combined with the TP.MS3463S.PB782 main board, controlled by the MP3398A PWM controller. As power elements of the LED driver, keys of the type ME15N10-G are used.
The power module is combined with the MainBoard and is made according to the flyback AC / DC voltage converter circuit using LD7536R PWM SOT23-6 microcircuits and type 7N65 power switches.
MainBoard - the main board (motherboard) is a module TP.MS3463S.PB782, using microchips SPI FLASH: 25Q64, AUDIO: TPA3110LD2 and others.
Tuner XF-3SDT-H (R840) provides the reception of television programs and tuning to channels.
Brand: DAEWOO, Model: L43S645VTE.
Briefly from the TV: LCD, LED backlight, 43 ", 1920x1080, 1080p Full HD, DVR, sound: 16W, HDMI: 2.
The composition uses MainBoard TP.MS3463S.PB782 and an LCD panel (matrix) LVF430LGDO E3 V11. The power supply is combined with the MainBoard.
DAEWOO L43S645VTE LED TV with an LVF430LGDO LCD display, diagonal size 43 "(109 cm) in 16: 9 format. The required screen brightness of 240 cd / m² is provided by LED backlight LED. The LED display backlight is implemented in the model’s display technology. Design and the TV’s technical capabilities include watching broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphic resolution according to the 1080p (Full HD) standard. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
The power of the sound speaker system 16 W (2x8 W) is provided by 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), VGA, HDMI x2, MHL, USB. An output for connecting headphones is provided. A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Overall dimensions: With a support of 977x624x216 mm, Without a support of 977x574x91 mm.
Attention! The panel of the LVF430LGDO E3 V11 LED-TV DAEWOO L43S645VTE 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.
