Technical description and composition of the SUPRA STV-LC32500WL TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC32500WL
Chassis / Version: V1P11, V1P12
Panel: HK315LEDM-0HE2H
LED backlight: HK32D10A-ZC21A-03
T-CON: MG5EBEBSH
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): integrated into MainBoard
MainBoard: CV59TH-B32
IC MainBoard: CPU: TSUMV29 / 39/59, SPI Flash: W25Q32
Control: IR 401-5C1C1-F4101
STV-LC32500WL Specifications
SUPRA STV-LC32500WL
General recommendations for TV LCD LED repair
Repair of the SUPRA STV-LC32500WL TV should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. Many visible changes in the state of elements make it possible to determine the further direction of troubleshooting and localization of the defect. Experienced repairers often guess about the causes of the defect and the possible consequences, for example, by ring cracks in the soldering of the element terminals, as well as by swollen capacitors or resistors burned out to coal dust and other external indirect signs.
In the absence of any signs of operability, when the SUPRA STV-LC32500WL does not turn on and does not signal anything with the control lamps on the panel, there is a possibility of a malfunction of the TV power module. With the same manifestations, the power regulator of the control processor on the motherboard may be faulty. In general, first of all, it is necessary to check the electrolytic capacitors of the filters of the secondary rectifiers and the fuse at the mains input. If it is cut off, then the diodes of the rectifier bridge and the key transistor of the converter, which can be located either on a separate heatsink or integrated with a PWM controller into a common microcircuit, should be checked for a breakdown of PN junctions. Options are possible.
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.
Sometimes the SUPRA STV-LC32500WL TV does not have a picture, but there is sound, or the picture appears and immediately disappears. In this case, there is a high probability of a malfunction of the panel backlight LED converter, or an open circuit in the LED circuit is possible. In such cases, first of all, it is necessary to make sure that all electrolytic capacitors of the filter are in good working order for the power supply of the LED driver itself, including the power supply unit (power supply unit).
To check the health of the LEDs, as well as the contact connections in the ruler circuit, the panel must be disassembled.
An open circuit in the LED rows connected in series cannot be detected with a multimeter or tester without disassembling the panel. It takes several tens of volts to open all the junctions, and it is best to use a current source for such purposes.
Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing CPU elements: TSUMV29 / 39/59, SPI Flash: W25Q32 requires the necessary training and professional skills to repair modules at the component level. Problems associated with BGA soldering technologies can be diagnosed by the warm-up method.
Attention to the owners! Attempts to repair the SUPRA STV-LC32500WL TV yourself are not recommended by the manufacturer and can lead to serious negative consequences!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC32500WL, Main: CV59TH-B32, Panel: HK315LEDM-0HE2H
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC32500WL, V1P11
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC32500WL V1P12
Main features of SUPRA STV-LC32500WL device:Installed matrix (LED panel) HK315LEDM-0HE2H.
Matrix management is based on the Timing Controller (T-CON) MG5EBEBSH.
To power the backlight LEDs, a converter combined with the CV59TH-B32 main board is used.
The power module is combined with the MainBoard and is made according to the AC / DC flyback converter circuit.
MainBoard - the main board (motherboard) is a CV59TH-B32 module, using CPU: TSUMV29 / 39/59 chips, SPI Flash: W25Q32 and others.
SUPRA LED TV STV-LC32500WL with LCD HK315LEDM-0HE2H, 32 "(81 cm) 16: 9. The required screen brightness of 400 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 80000: 1 is achieved by special control operation of LEDs depending on the illumination of areas in the scene. The display technology of the model uses LED LED backlight. It is possible to view broadcasts and films and images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready). Input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC Graphic processing and digital signal formation is performed in 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards Supported multimedia file formats: MP3, WMA, MPEG4, JPEG.
Speaker power 12 W (2x6 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, VGA, HDMI x2, USB x2. A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
Dimensions: With stand 1235x758x284 mm, Without stand 713x435x86 mm.
Attention! The HK315LEDM-0HE2H panel of SUPRA STV-LC32500WL 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 non-repairable.
