Technical description and composition of the SUPRA STV-LC19811FL TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC19811FL
Chassis / Version: T.VST59.62
Panel: M185XTN01.3
Power Supply (PSU): Adapter 12V
MainBoard: T.VST59.62
IC MainBoard: CPU TSUMV59XU-Z1, Flash 25Q32, TDA-1517P, TPS54329 (PWM Step-down), BL8024 (PWM Step-down marker GG ..)
Tuner: CDT-3NP5i1-10
STV-LC19811FL Specifications
SUPRA STV-LC19811FL
General repair guidelines for TV LCD LED
Diagnostics of malfunctions and repair of SUPRA STV-LC19811FL, like other electronic devices, it is recommended to begin with an external examination of external and internal elements. Visible damage to elements can sometimes indicate the direction of the search for a defect even 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.
In the absence of any signs of operability, when the SUPRA STV-LC19811FL does not turn on and does not signal anything with the control lights 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. 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.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself for no reason that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
In cases where the SUPRA STV-LC19811FL TV has lost the image, but there is sound and all other functions are operational, there is a possibility of a malfunction of the LED driver (the converter for powering the backlight LEDs of the M185XTN01.3 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 LED line 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.
Repair of the T.VST59.62 motherboard must begin with diagnostics and testing of all linear stabilizers or power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM.
Board repair and replacement of CPU chips TSUMV59XU-Z1, Flash 25Q32 are carried out with the necessary equipment, and the corresponding element base. Faults associated with the use of BGA processor soldering technology can be localized by the heating method.
Before replacing the tuner CDT-3NP5i1-10, if there is no tuning for the channels, you must first check the supply voltage at its terminals.
Attention to users! Self-repair of the SUPRA STV-LC19811FL TV without appropriate qualifications and experience can lead to its complete non-repairability!
FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC19811FL, Main: T.VST59.62, Panel: M185XTN01.3
The appearance of MainBoard T.VST59.62 is shown in the figure below:T.VST59.62
It is advisable to start repairing the T.VST59.62 motherboard based on the TSUMV59Xxx multifunction processor by checking the performance of linear voltage stabilizers or voltage converters necessary to provide power to the processor nodes - 1.2V core power, DDR 1.8V memory and Stand-by 3.3V mode . If there is no image, but the display backlight is working properly, check the power supply voltage of the LCD panel 5V or 12V, depending on the type of panel used.
T.VST59.62 can be used on TVs:
Akai LEA-22V21M (Panel A215ED1DA3-1), ERISSON 22LEN18 (Panel M215HGJ-L21), ERISSON 16LEN18 (Panel N156BGE-L11 Rev.C1), ERISSON 24LEN18 (Panel M236HGE-L20), Fusion FLTV-16L10B (Panel T156LL10-AW4), FUSION FLTV-24T9 (Panel M240HW01 V.B), FUSION FLTV-16T9 (Panel B156XTN02), FUSION FLTV-16T9D (Panel T156LL10-AW4), HYUNDAI H-LED19V13 (Panel CX185LEDM ), SUPRA STV-LC19811FL (Panel M185XTN01.3), SUPRA STV-LC19820WL (Panel LM185WH2), SUPRA STV-LC22820FL (Panel LS215AFTNM), SUPRA STV-LC18250WL (Panel B173HW02 V.1), SUPRA STV-LC22810FL (Panel M215HGE-L21 Rev.C1), SUPRA STV-LC16810WL (Panel B156RW01 V.1), SUPRA STV-LC18251FL (Panel N173HGE-L11 Rev. C1), SUPRA STV-LC22811FL (Panel 1080p Full HD 1920x1080), SUPRA STV-LC1982WL (Panel 1080p Full HD 1920x1080), TELEFUNKEN TF-LED22S3 (Panel M215HGE-P02).
Main features of SUPRA STV-LC19811FL device:
Installed matrix (LED-panel) M185XTN01.3.
To power all internal components of the SUPRA STV-LC19811FL TV, an external adapter 12V is used.
MainBoard - the main board (motherboard) is a T.VST59.62 module, using CPU chips TSUMV59XU-Z1, Flash 25Q32, TDA-1517P, TPS54329 (PWM Step-down), BL8024 (PWM Step-down marker GG .. ) and others.
The tuner CDT-3NP5i1-10 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: AUO
Model: M185XTN01.3
Type: a-Si TFT-LCD, Panel
Diagonal size: 18.5 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 409.8x230.4 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 200 cd / m²
Contrast Ratio: 700: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 3.6 / 1.4 (Tr / Td)
Frequency: 60Hz
Lamp Type: 7S4P WLED Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V
SUPRA LED TV STV-LC19811FL with LCD M185XTN01.3, diagonal 19 "(48 cm) 16: 9. The required screen brightness of 250 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 60,000: 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 resolution according to the standard 1080p (Full HD ) .Input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal formation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, MPEG4, 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, SCART, 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, 1360x768.
Overall dimensions: With stand 445x305x160 mm, Without stand 445x270x45 mm.
Attention! Panel M185XTN01.3 LED TV SUPRA STV-LC19811FL 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.