Technical description and composition of the SUPRA STV-LC46S990FL TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC46S990FL
Chassis / Version: V1L11
Panel: TC460FPE5 // TC460F109 (V1M05)
T-CON: V460H1-CPE5
LED driver (backlight): integrated into PSU
MainBoard: T.MS6M182.81B-1 11345
IC MainBoard: MST6M182VS-LF-Z1
Tuner: CDT-3SP5I2-36
STV-LC46S990FL Specifications
SUPRA STV-LC46S990FL
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- SUPRA STV-LC46S990FL does not turn on and does not show any signs of operability at all. Does not blink indicators and does not respond to control buttons.
With such manifestations, the power supply module usually fails. It is necessary to measure the output voltages in its secondary circuits, and in the event of their complete absence, the serviceability of the power switches and rectifier diodes should be checked for a possible breakdown (short circuit).
In case of diode breakdowns in the secondary circuits, the converter can operate in an emergency mode of short circuit without output voltages, and in case of a short circuit in the power elements of the primary circuit, the mains fuse and / or the current sensor in the source of the key usually breaks off.
Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM regulator, in frequency-setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) are usually checked by replacing them with new ones, or knowingly working.
- There is no picture, but there is sound, it reacts to the remote control. Or the image appears when turned on and disappears immediately
The malfunction in most of these cases is found in the nodes and elements of the LED panel backlighting. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
Without a special current source, it is impossible to check the line of LEDs connected in series, and it is unsafe for them to use any voltage sources above 12V for this purpose. Then all that remains is to open the panel and check each LED separately. Typically, Chinese multimeters with a 9V power supply lightly light up one 3-volt LED if you connect the probes to it in the forward direction, the red probe to the anode, and the black one to the cathode. For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of LED health. In the event of a malfunction of the LED, its zener diode will either be cut off or broken into the K / Z.
- The indicator blinks or is on constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the T.MS6M182.81B-1 motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Sometimes it is necessary to check or replace (if necessary) elements of the MainBoard - MST6M182VS-LF-Z1. In cases where a BGA processor is used, its malfunction is usually detected by the local warm-up method.
If there is no tuning for terrestrial or cable TV channels, you should make sure that the software is correct, as well as that the supply voltages on the outputs of the CDT-3SP5I2-36 tuner match. It is also necessary to check with an oscilloscope the presence of pulses of data exchange between the tuner and the processor via the I2C bus.
Remember! Attempts to self-repair the SUPRA STV-LC46S990FL TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC46S990FL V1L11, Main: T.MS6M182.81B-1 11345, Panel: TC460FPE5
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC46S990FL V1M05, Main: T.MS6M182.81B-1 11345, TC460F109 (V1M05)
The appearance of the MainBoard T.MS6M182.81B-1 is shown in the figure below:T.MS6M182.81B-1
T.MS6M182.81B-1 can be used in TVs:
SUPRA STV-LC32S650WL (Panel MT3151A03-1 VER22), SUPRA STV-LC46S990FL (Panel TC460FPE5).
Main features of SUPRA STV-LC46S990FL device:
Installed matrix (LED panel) TC460FPE5 or TC460F109 (V1M05).
Matrix control uses Timing Controller (T-CON) V460H1-CPE5.
A converter combined with a power supply is used to power the backlight LEDs.
The required supply voltages for all nodes of the SUPRA STV-LC46S990FL TV are provided by a switching power supply.
MainBoard - the main board (motherboard) is a T.MS6M182.81B-1 module, using MST6M182VS-LF-Z1 microcircuits and others.
The CDT-3SP5I2-36 tuner provides reception of television programs and tuning to channels.
LED TV SUPRA STV-LC46S990FL with LCD TC460FPE5, diagonal size 46 "(117 cm) 16: 9. The required brightness of the screen 350 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 120,000: 1 is achieved by special control of the LEDs depending on the illumination of the areas in the scene.This model uses an LED-panel with an edge LED backlighting - Edge LED.Possibilities of the TV provide viewing of broadcasts and films in high quality HD at a resolution of 1920x1080 pixels in graphics decomposition at 1080p (Full HD).
STV-LC46S990FL has built-in SMART software and pre-installed Android Operating System. Internet connection can be made via Wi-Fi wireless connection. The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal shaping takes place in the 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker power of 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 x2, audio x2, S-Video, component, SCART, RGB, VGA, HDMI x2, USB x3, Ethernet (RJ-45 ), Wi-Fi. A headphone output is provided.
The power consumed by the TV in operating mode from the network is 180 watts.
Overall dimensions: 1057x673x255 mm.
Attention! The panel TC460FPE5 of the SUPRA STV-LC46S990FL 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.