Technical description and composition of the TV SUPRA STV-LC22T800FL, type of panel and applicable modules. The composition of the modules.SUPRA LED
Model: STV-LC22T800FL
Chassis / Version: TP.S512.PA63
Panel: C215F14-E1-P
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): integrated into MainBoard
PWM Power: LD5530
MOSFET Power: N-FET TO-252
MainBoard: TP.S512.PA63
IC MainBoard: S2T512, 25Q64, CD1517CP
Tuner: XF-3SDT-H (R840)
Technical Specifications STV-LC22T800FL
SUPRA STV-LC22T800FL
General repair guidelines for TV LCD LED
Repair of the SUPRA STV-LC22T800FL TV should begin with a careful external inspection of all its constituent elements and modules. Based on visible external changes in the state of the components, it is usually possible to determine the further direction of troubleshooting and localization of the defect before making the necessary measurements. Electrolytic capacitors of filters with a swollen body, as well as ring cracks or a layer of coal on burned-out resistors formed in the soldered terminals of the heating elements, sometimes tell the repairman the causes of the malfunction and possible consequences.
If the SUPRA STV-LC22T800FL does not turn on, no control lights on the front panel light up or blink, therefore, there is a very high probability of a power module malfunction. In some cases, only the processor power regulator may be faulty. When diagnosing and repairing the power supply, first of all, replace the swollen capacitors of the filter of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module — rectifier diodes and transistors in the primary circuit.
The reasons for the breakdown of the power switch in pulsed power supplies (IIPS) can be different, for example, a malfunction of semiconductor elements or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller chip or broken resistors in its bundle.
Sometimes the SUPRA STV-LC22T800FL TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the C215F14-E1-P backlight LED converter, or an open circuit in the LED circuit is possible. In such cases, first of all, it is necessary to verify the serviceability of all the electrolytic capacitors of the filter by supplying the LED driver itself, including in the power supply unit (power supply unit).
In most cases of lack of backlight, there is a need to disassemble the panel in order to check the LEDs, connectors, loops and all contact connections. If one or several LEDs does not work in one line, therefore, they are broken and should be replaced.
An open in the LED lines connected in series cannot be detected with a multimeter or tester without disassembling the panel. To open all the transitions, several tens of volts are needed, and it is best to use a current source for such purposes.
The TP.S512.PA63 motherboard should be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up continuously. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary.
Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace Flash 25Q64 elements. BGA chip malfunctions are usually easy to detect by warming up.
It should be remembered! Attempts to repair the SUPRA STV-LC22T800FL 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!
FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC22T800FL, Main: TP.S512.PA63, Panel: C215F14-E1-P
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> SUPRA STV-LC22T800FL Chassis TP.S512.PA63
The appearance of MainBoard TP.S512.PA63 is shown in the figure below:TP.S512.PA63
TP.S512.PA63 can be used in TVs:
Aiwa 24le7021 .
Key Features of SUPRA STV-LC22T800FL:
Installed matrix (LED-panel) C215F14-E1-P.
To power the backlight LEDs, a converter is used, combined with the TP.S512.PA63 main board.
The power module is combined with the MainBoard and is made according to the scheme of a flyback AC / DC voltage converter using LD5530 microcircuits and power switches of the N-FET TO-252 type.
MainBoard - the main board (motherboard) is a TP.S512.PA63 module, using S2T512, 25Q64, CD1517CP chips, and others.
Tuner XF-3SDT-H (R840) provides the reception of television programs and tuning to channels.
LED TV SUPRA STV-LC22T800FL with LCD C215F14-E1-P, diagonal size 22 "(56 cm) 16: 9 format. The required brightness of the screen is 220 cd / m² LED backlight LED. Dynamic contrast ratio of 80,000: 1 is achieved special control of the operation of the LEDs depending on the illuminance of the plots in the plot.In this model, an LED panel with an end arrangement of the backlight LEDs - Edge LED is used. Full HD). The input high-frequency or video signal is decoded in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
The power of the sound system 4 W (2x2 W) provide two speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, VGA, HDMI, USB, Ethernet (RJ-45). An output for connecting headphones is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080. A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Overall dimensions: With stand 1235x758x284 mm, Without stand 713x435x86 mm.
Attention! The C215F14-E1-P panel of a SUPRA STV-LC22T800FL LED TV 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.
