Technical description and composition of the TV SUPRA STV-LC24663FL, type of panel and applicable modules. The composition of the modules.SUPRA LED
Model: STV-LC24663FL
Chassis / Version: 5800-A8M470-OP40 VER40.00
Panel: HM236WU3-100
LED backlight: LBUA-SEL236V3-S06A Shine0n 2D00334 Rev.A
T-CON: HM236WU1-100
MainBoard: 5800-A8M470-OP40 VER40.00
IC MainBoard: Flash 25Q32
Technical Specifications STV-LC24663FL
SUPRA STV-LC24663FL
General repair guidelines for TV LCD LED
An external examination of the external and internal elements should be carried out in a timely manner prior to the start of dismantling operations. Often, based on certain external signs, it may be possible to draw certain conclusions about the reasons for the failure of certain circuit elements even before the necessary measurements are made, which will determine the further algorithm for troubleshooting and localizing the defect. In some cases, faulty elements can be seen with the naked eye, for example, carbonized resistors or swollen metal-ceramic capacitors, or electrolytic in rectifier filters. Ring cracks formed in the soldered terminals of transformers or heating elements of the circuit are also frequent sources of many malfunctions with a variety of external manifestations.
In the case when the STV-LC24663FL does not turn on, does not respond to the remote control and buttons on the front panel, does not blink lights and does not show any signs of operability, the power supply module is probably defective in this case. If it is serviceable with such manifestations, it is necessary to check the stabilizer (converter) of the processor power supply on the motherboard. Diagnostics and repair of the general power supply unit should always begin by checking the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the network rectifier, as well as the large electrolytic capacitor of the filter of the network rectifier.
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-LC24663FL TV has lost an image, and the sound is there and all other functions are operational, there is a possibility of a malfunction of the LED driver (a converter for powering the backlight LEDs of the HM236WU3-100 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.
In most cases of lack of backlight, it becomes necessary 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.
It should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels using a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required.
Diagnostics and repair of the motherboard 5800-A8M470-OP40 VER40.00 is carried out by checking the performance of the stabilizers or power converters of the module chips. In some cases, a software update is required.
If it is not possible to replace the MB board (SSB), you need to check the health of its elements - Flash 25Q32. Defective components should be replaced.
Remember! Attempts to self-repair by users of the SUPRA STV-LC24663FL TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC24663FL, Main: 5800-A8M470-OP40 VER40.00, Panel: HM236WU3-100
Main features of the SUPRA STV-LC24663FL device:Installed matrix (LED panel) HM236WU3-100.
The matrix control uses the Timing Controller (T-CON) HM236WU1-100.
The required supply voltage for all nodes of the TV SUPRA STV-LC24663FL provides a switching power supply.
MainBoard - the main board (motherboard) is a 5800-A8M470-OP40 module, using Flash 25Q32 chips and others.
Additional technical information about the panel:
Brand: BOE
Model: HM236WU3-100
Type: a-Si TFT-LCD, CELL
Diagonal size: 23.6 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 521.28x293.22 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Transmissivity: 5.3% (with Polarizer)
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC)
Response Time: 1.5 / 3.5 (Tr / Td)
Frequency: 60Hz
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
LED TV SUPRA STV-LC24663FL with LCD HM236WU3-100, diagonal size 24 "(61 cm) 16: 9 format. The required brightness of the screen 300 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 the end position of the 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 graphic resolution of 1080p (Full HD ). The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, MPEG4, MKV Jpeg.
The power of the acoustic system of sound 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 x2. 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, 1920x1080.
The power consumed by the TV in the operating mode from the network is 40 watts.
Overall dimensions: With a support 572x392x170 mm, Without a support 572x352x55 mm.
Mass of the TV: 4.6 kg.
Attention! The HM236WU3-100 panel of a SUPRA STV-LC24663FL 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.