Technical description and composition of the SUPRA STV-LC3244WLD TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC3244WLD
Chassis / Version: T.MS6M182.81B
Panel: LTA320AN01
MainBoard: T.MS6M182.81B
IC MainBoard: CPU MST6E182VS-LF-Z1, Flash W25Q32
STV-LC3244WLD Specifications
SUPRA STV-LC3244WLD
General recommendations for TV LCD LED repair
Repair and diagnostics of any electronic device, in particular SUPRA STV-LC3244WLD, it is advisable to begin with a careful external examination of the internal and external elements. According to some external signs of a change in the state of some elements, sometimes it becomes possible to make assumptions about the nature of the defect, as well as to determine the further direction of troubleshooting. In some cases, defective elements are visible to 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.
Malfunctions of the power supply module can be expressed in different ways, for example, SUPRA STV-LC3244WLD does not turn on at all and the control lamps on its front panel do not light up or blink, all signs of operability are absent. It should be noted that the processor power regulator (converter) may be faulty with the same external manifestations. In the absence of swollen capacitors of the secondary rectifier filter, diagnostics of the power supply should begin with checking the fuse and, if it breaks, it is necessary first of all to check all power semiconductor elements of the primary circuit - diodes and transistors for the likelihood of an avalanche or thermal breakdown.
As a rule, switches in switching power supplies (SMPS) are quite reliable and rarely fail without reasons that should be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM microcircuit is checked by replacing it with a known good one.
If, when turning 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 LED backlight of the LTA320ANO1 panel). 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.
A malfunction in the backlight circuits often occurs due to an open circuit in the power supply circuit of the LED lines. It is required to disassemble the panel and check the LEDs themselves, the ration of their outputs, as well as the reliability of the connections in the connectors and the ration of the connector pins.
It is impossible to check the LED bars for a break 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.
The motherboard T.MS6M182.81B must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or is on continuously. In such cases, if the converters or power regulators of the microcircuits are working, it may be necessary to update the software.
In cases of attempts to repair the MB (SSB) board, it is necessary to check the serviceability of its elements - CPU MST6E182VS-LF-Z1, Flash W25Q32 which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its pins with the board (indicated by heating)
Attention to users! Self-repair of the SUPRA STV-LC3244WLD TV without appropriate qualifications and experience can lead to its complete non-repairability!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC3244WLD, Main: T.MS6M182.81B, Panel: LTA320ANO1
The appearance of the MainBoard T.MS6M182.81B is shown in the figure below:T.MS6M182.81B
T.MS6M182.81B can be used in TVs:
DIGITAL DLE-2610 (Panel V260CD1B23-2), FUSION FLTV-32H17 (Panel LC320WXE (SB)(V2)), SUPRA STV-LC3244WL (Panel LTA320AN01), SUPRA STV-LC3244WLD (Panel LTA320AN01 ), SUPRA STV-LC3219W (Panel LC320WXE), SUPRA STV-LC32S650WL (Panel MT3151A03-1 VER22), SUPRA STV-LC46S990FL (Panel TC460FPE5).
Main features of SUPRA STV-LC3244WLD device:
The matrix (LED-panel) LTA320AN01 is installed.
The necessary supply voltages for all nodes of the SUPRA STV-LC3244WLD TV are provided by a switching power supply.
MainBoard - the main board (motherboard) is a T.MS6M182.81B module, using CPU MST6E182VS-LF-Z1, Flash W25Q32 and others.
SUPRA LED TV STV-LC3244WLD with LCD display LTA320AN01, 32 "(81 cm) diagonal 16: 9. The required brightness of the screen 450 cd / m² is provided by LED backlight. Dynamic contrast ratio of 60,000: 1 is achieved by special LED control depending on the illumination of the areas in the scene.This model uses an LED-panel with an edge arrangement of backlighting LEDs - Edge LED.It is possible to view broadcasts and films and images in high quality HD at a resolution of 1366x768 pixels in the standard graphic resolution 720p (HD Ready). high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal shaping occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, Xvid, VideoCD , SVCD, JPEG.
The power of the speaker system is 18 W (2x9 W), 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 x2, audio x2, component, SCART, RGB, VGA, HDMI x3, 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.
The power consumed by the TV in operating mode from the network is 90 watts.
Overall dimensions: 779x592x205 mm.
TV weight: 9.5 kg.
Attention! The LTA320AN01 panel of SUPRA STV-LC3244WLD LED TV is an expensive and unreliable component.
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 non-repairable.
