Technical description and composition of the SUPRA STV-LC46T810FL TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC46T810FL
Chassis / Version: T.MSD309.9B 10345
Panel: 1080p Full HD, 1920x1080
MainBoard: T.MSD309.9B 10345
IC MainBoard: CPU: MSD309BT-Z1, SPI Flash W25Q32V
Tuner: XDTT-6F1C / T1146
STV-LC46T810FL Specifications
SUPRA STV-LC46T810FL
General recommendations for TV LCD LED repair
SUPRA STV-LC46T810FL TV, like many other electronic devices, it is advisable to start repairing by inspecting all external and internal elements. From visible external changes in the state of components, it is often possible to determine the further direction of troubleshooting before taking the necessary measurements. In some cases, defective elements are visible with the naked eye, for example, charred resistors or swollen sintered capacitors, or electrolytic ones in rectifier filters. The formed ring cracks in the soldering of the terminals of transformers or heating circuit elements are also frequent sources of many malfunctions with a variety of external manifestations.
In cases where the SUPRA STV-LC46T810FL TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink, and there are no sounds and no signs of operation when turned on, the power module is most likely faulty or there is no power processor on the motherboard (typical defect of some SUPRA TV models). The first step is to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse in the power supply is broken, in most cases a breakdown of the power switch (s) is detected, which can be integrated with the PWM controller, or a separate field-effect transistor can be used. You should also check the diodes of the rectifier bridge and the electrolytic capacitor of the mains rectifier filter.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (SMPS) it does not fail by itself without reasons that should be looked for by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If, when you turn on the TV, the image appears and immediately disappears, or is absent initially when turned on, but there is sound and other functions work, there is a high probability of a malfunction of the LED driver (power converter for the backlight LEDs of the 1080p Full HD panel, 1920x1080). In such cases, the common power module is also subject to verification, in which the electrolytic capacitors of the rectifier filter supplying the LED driver should be checked.
To check the health of the LEDs and contact connections in their power supply circuit, it is necessary to disassemble the panel.
It should be remembered that it is not possible to determine an open circuit 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.
On the motherboard T.MSD309.9B 10345, in case of a malfunction, you should first check the operability of all stabilizers or power converters of microcircuits and, if necessary, update the software (software).
In some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - CPU: MSD309BT-Z1, SPI Flash W25Q32V with new or known good ones. In cases where BGA technologies are used, defects are usually localized by heating.
If the TV operates normally from external devices, but does not tune into TV channels, the XDTT-6F1C / T1146 tuner may be faulty. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals.
Remember! Attempts to self-repair the SUPRA STV-LC46T810FL TV by users without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC46T810FL, Main: T.MSD309.9B 10345
The appearance of the MainBoard T.MSD309.9B is shown in the figure below:T.MSD309.9B
The MainBoard T.MSD309.9B uses the MSD309B processor, DDRAM random access memory (RAM) in BGA design and SPI Flash ROM of the 25Q32 type (4Mb).
It is advisable to start repairing the motherboard with checking the voltage converters and linear stabilizers necessary to provide power to the nodes in the operating and standby mode. The processor core is powered by + 1.5V. Also, the processor requires + 2.5V and + 3.3V voltages.
If the display backlight is working properly and there is no image, it is necessary to check the panel power supply (depending on the type, + 5V or + 12V), which is more convenient to measure directly at the LVDS connector. If, with all the supply voltages present, the TV does not go into operation, does not respond to the Remote Control and control buttons, you should update the SPI Flash firmware.
T.MSD309.9B can be used in TVs:
BBK LEM3242DT (Panel LC320EXN SDA1), BBK LEM3241FDT (Panel 32 inches), BBK LEM2687FDT (Panel V260H1-LE1), IZUMI TLE32D400B (Panel V315H3-LE4), SUPRA STV-LC3245LF (Panel H TCF) LC39 SUPT8 Panel TC390FP01-B), SUPRA STV-LC46T810FL (Panel 1080p Full HD 1920x1080), SUPRA STV-LC39T810FL (Panel TC390FP01-A).
Main features of SUPRA STV-LC46T810FL device:
Installed matrix (LED panel) 1080p Full HD, 1920x1080.
The required supply voltages for all nodes of the SUPRA STV-LC46T810FL TV are provided by a switching power supply.
MainBoard - the main board (motherboard) is a T.MSD309.9B module, using CPU chips: MSD309BT-Z1, SPI Flash W25Q32V and others.
Tuner XDTT-6F1C / T1146 provides reception of television programs and tuning to channels.
LED TV SUPRA STV-LC46T810FL with LCD display, diagonal size 46 "(117 cm) 16: 9 format. depending on the illumination of the areas in the scene. The display technology of the model uses LED backlight. The capabilities of the TV provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD). The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC Graphic processing and digital signal formation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p Supported multimedia file formats: MP3, MPEG4, MKV, JPEG.
Speaker power 16 W (2x8 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART, RGB, VGA, HDMI x4, USB. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080. The digital tuner is capable of receiving TV channels in DVB-T MPEG4 standards.
The power consumed by the TV in operating mode from the network is 150 watts.
Overall dimensions: 1057x673x257 mm.
TV weight: 16.5 kg.
Attention! The panel of SUPRA STV-LC46T810FL LED TV is an expensive and unreliable element.
Do not allow any impacts on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.
