Technical description and composition of the TV SUPRA STV-LC24660FL, type of panel and applicable modules. The composition of the modules.SUPRA LED
Model: STV-LC24660FL
Chassis / Version: 5800-A8M280-0P10
Panel: HM236WU3-100
T-CON: HM236WU1-100 X0.0
LED driver (backlight): integrated into PSU
PWM LED driver: OB3362HP
MOSFET LED driver: ME15N10-6
Power Supply (PSU): 168P-P24EQB-W2 - 580-P24EQB-WP10
PWM Power: OB2273 (6pin)
MainBoard: 5800-A8M280-0P10 Ver10.00 (5800-A8M280-OP10)
IC MainBoard: FLASH: Q32B-104HIP; SOUND: 1517 (20pin)
Tuner: ET-9Z2E-CF106H
Technical Specifications STV-LC24660FL
SUPRA STV-LC24660FL
General repair guidelines for TV LCD LED
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 chance that the power supply module 168P-P24EQB-W2 - 580-P24EQB-WP10 is faulty and needs repair. Sometimes with similar manifestations, a problem can only occur in the absence of standby power. In the general case, first of all, it is necessary to check the electrolytic capacitors of the secondary rectifier filters and the fuse at the input of the network. If it is broken, then you should check for breakdown of the PN junctions of the rectifier bridge diodes and the key transistor of the converter, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Possible options.
In most cases, key breakdowns in switching power supplies (IIPS) do not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective chip PWM OB2273 (6pin) from the manufacturer.
If the image appears and immediately disappears when the TV is turned on, or it is initially absent when it is turned on, but the sound has other functions, there is a high probability of a malfunction of the display backlight LEDs or the LED driver (power converter for the HM236WU3-100 panel backlight assembly).
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 is impossible to check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters, as a rule, light up a single 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as a health indicator. In faulty LEDs, the zener diode will either be cut off or broken into short-circuit.
Diagnostics and repair of the motherboard 5800-A8M280-OP10 Ver10.00 usually begins with a test of the performance of the stabilizers and power converters of the module chips. In some cases, a software update is required.
Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Inspection or replacement of FLASH elements: Q32B-104HIP; SOUND: 1517 (20pin) requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technology can be diagnosed by warming up.
The malfunction of the ET-9Z2E-CF106H tuner is established after checking the software and all supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be controlled by an oscilloscope.
Once again, we remind users of TV: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair only to professionals with sufficient experience in the field of electronic equipment repair.
FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC24660FL, Main 5800-A8M280-OP10, Panel HM236WU3-100
The appearance of the MainBoard 5800-A8M280-0P10 is shown in the figure below:5800-A8M280-0P10
5800-A8M280-0P10 can be used in TVs:
AIWA 32LE6110 (Panel T320HVN01.V2), AIWA 24LE6110 (Panel V236H1-LE4 Rev.C1), HYUNDAI H-LED29V17 (Panel V290BJ1-PE1 VRev.C2), SUPRA STV-LC24660FL (Panel HM236WU3-100), SUPRA STV-LC19660WL (Panel E185SG01), SUPRA STV-LC19663WL (Panel E185SG02).
Main features of the SUPRA STV-LC24660FL device:
Installed matrix (LED panel) HM236WU3-100.
The matrix control uses the Timing Controller (T-CON) HM236WU1-100.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by the OB3362HP PWM controller. As the power elements of the LED driver, keys of the type ME15N10-6 are used.
The necessary supply voltages for all nodes of the TV SUPRA STV-LC24660FL are generated by the power supply module 168P-P24EQB-W2, or its analogs using OB2273 chips (6pin).
MainBoard - the main board (motherboard) is a 5800-A8M280-0P10 module, using FLASH chips: Q32B-104HIP; SOUND: 1517 (20pin) and others.
The ET-9Z2E-CF106H tuner provides TV reception and channel tuning.
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-LC24660FL 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 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 ). The input high-frequency or video signal is decoded in analog 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, 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, 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.
Overall dimensions: With stand 794x561x204 mm, Without stand 794x499x90 mm.
Attention! The HM236WU3-100 panel of a SUPRA STV-LC24660FL 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.