Technical description and composition of the TV SUPRA STV-LC22551FL, type of panel and applicable modules. The composition of the modules.SUPRA LED
Model: STV-LC22551FL
Chassis / Version: TP.VST59.P67
Panel: L509A215N01F-1
LED driver (backlight): integrated into MainBoard
PWM LED driver: OB3350CP
Power Supply (PSU): integrated into MainBoard
PWM Power: PWM SOT23-6
MOSFET Power: MDF7N60B
MainBoard: TP.VST59.P67
IC MainBoard: CPU TSUMV59XE-Z1 A7MKF35C, Flash 25Q32
Tuner: NoName
Technical Specifications STV-LC22551FL
SUPRA STV-LC22551FL
General repair guidelines for TV LCD LED
Diagnostics of malfunctions and repairs SUPRA STV-LC22551FL, as well as other electronic devices, it is recommended to start with an external examination of the external and internal elements. Specific external damage to some elements can sometimes indicate further actions to determine the malfunction of the TV and localize the defect before the necessary measurements are taken. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a significant clue in the assumptions about the causes and consequences of the malfunction.
If the TV does not turn on, no indicators on its front panel are lit or blinking. Also, if the TV does not respond to the remote control and buttons, does not make any sounds or any signs of operability when turned on, there is a certain probability that the power module is defective and needs repair. Sometimes with similar manifestations a problem can only occur in the absence of processor power, which is typical for certain SUPRA models. In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is checked by replacing it with a known good one.
In cases where the SUPRA STV-LC22551FL TV has lost its image, and the sound is there and all other functions are operational, there is a possibility of a malfunction of the LED driver (converter for powering the LED backlight of the L509A215N01F-1 panel). When you turn on the TV, the image may appear briefly and disappear immediately. It must be borne in mind that with such manifestations the LEDs themselves also fail.
To check the health of the LEDs, as well as contact connections in the ruler circuit, it is necessary to disassemble the panel.
It is impossible to detect a break in the line of LEDs without disassembling the panel with a simple multimeter. LEDs are connected in series and to open their transitions, a voltage of several tens of volts is required. Ideally, a current source is suitable for such purposes.
The TP.VST59.P67 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.
Board repair and replacement of CPU chips TSUMV59XE-Z1 A7MKF35C, Flash 25Q32 are carried out with the necessary equipment, and the corresponding element base. Faults associated with the use of BGA processor soldering technologies can be localized by the heating method.
Once again, remind users! Attempts to self-repair a SUPRA STV-LC22551FL TV without the appropriate qualifications and experience can lead to its complete non-repairability!
FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC22551FL, Main: TP.VST59.P67, Panel: L509A215N01F-1
The appearance of MainBoard TP.VST59.P67 is shown in the figure below:TP.VST59.P67
TP.VST59.P67 can be used on TVs:
Shivaki 22led6 (panel t215hvn010) -401).
Main features of the SUPRA STV-LC22551FL device:
The matrix (LED panel) L509A215N01F-1 is installed.
To power the backlight LEDs, a converter is used, combined with the main board TP.VST59.P67, controlled by the OB3350CP PWM controller.
The power module is combined with the MainBoard and is made according to the scheme of a flyback AC / DC voltage converter using PWM SOT23-6 microcircuits and power switches of the MDF7N60B type.
MainBoard - the main board (motherboard) is a module TP.VST59.P67, using CPU chips TSUMV59XE-Z1 A7MKF35C, Flash 25Q32 and others.
The NoName tuner provides reception of television programs and tuning to channels.
LED TV SUPRA STV-LC22551FL with LCD L509A215N01F-1, diagonal size 22 "(56 cm) 16: 9 format. The required brightness of the screen 200 cd / m² is provided by LED backlight LED. Dynamic contrast ratio 60000: 1 is achieved by special control LEDs work depending on the illuminated areas in the plot.In this model, an LED panel with an end arrangement of backlight LEDs is used - Edge LED.The TV features include viewing programs and movies in high quality HD at a resolution of 1920x1080 pixels in a graphical decomposition 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 generation takes place in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, JPEG.
The power of the sound system 6 W (2x3 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. 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.
Overall dimensions: With a support 503x342x155 mm, Without a support 503x312x50 mm.
Attention! The L509A215N01F-1 panel of a SUPRA STV-LC22551FL 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.
