Technical description and composition of the TV SUPRA STV-LC22410WL, type of panel and applicable modules. The composition of the modules.SUPRA LED
Model: STV-LC22410WL
Chassis / Version: T.VST29.61C 12296
Panel: LM216DA-T01
LED driver (backlight): integrated into PSU
PWM LED driver: OB3362RP
Power Supply (PSU): HKC-PL01
PWM Power: SG6848 (6 pin AExxx)
MOSFET Power: SVF7N65F
MainBoard: T.VST29.61C 12296
IC MainBoard: CPU TSUMV59XE, Flash GD25Q32
Tuner: CDT-3SP512-36
Technical Specifications STV-LC22410FL
SUPRA STV-LC22410WL
General recommendations for TV LCD LED repair
Repair of the SUPRA STV-LC22410WL TV should begin with a careful external examination of all its constituent elements and modules. Visible damage to elements can sometimes indicate the direction of the search for a defect even before the necessary measurements are taken. In most cases, the repairman can guess about the causes of the defect and the possible consequences by the characteristic signs of typical defects in TVs, for example, the formed ring cracks in the soldering of the element terminals, swollen capacitors of the rectifier filter, charred resistors and other circuit elements.
In the case when the STV-LC22410WL does not turn on, does not respond to the remote control and front panel buttons, does not blink lights and does not show any signs of operability, the power module is probably faulty 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 rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
It should be remembered that in the practice of repair, usually the power switches in switching power supplies (SMPS) do not fail due to their poor quality and, in such cases, it is necessary to look for the cause that led to a malfunction and provoked a breakdown of the key. Most often, the culprits of the accident are dry electrolytic capacitors or broken resistors in the primary circuit, or the PWM controller microcircuit itself may be faulty. It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuits.
If the SUPRA STV-LC22410WL lacks an image but has sound, the backlight LEDs on the LM216DA-TO1 panel or their power converter may malfunction. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are in good working order.
To check the health of the LEDs, as well as the contact connections in the ruler circuit, the panel must be disassembled.
When trying to detect a break in the LED lines, it should be borne in mind that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
Diagnostics and repair of the T.VST29.61C 12296 motherboard is carried out by checking the functionality of the stabilizers or power converters of the module chips. In some cases, a software update is required.
In cases of attempts to repair the MB (SSB) board, it is necessary to check the serviceability of its elements - CPU TSUMV59XE, Flash GD25Q32 which may need to be replaced with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its pins with the board (indicated by warming up).
Once again, we remind TV users: do not attempt to repair 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-LC22410WL , Main: T.VST29.61C 12296, Panel: LM216DA-TO1
When installing microcircuits of the type SG6848T (AAH ..) instead of analogs SG6849 ... (AE ..., BB ...), you must have a frequency setting resistor from the third pin of the microcircuit to the case. Denomination 95-100kOhm.
Of the possible replacements, we can recommend the most popular commercially available LD7535, LD7550, OB2262, OB2273 and other available analogues. The use of pin 3 needs to be clarified in the documentation.
To reduce the backlight current in LED drivers with OB3362RP (TSOP16) controller, increase the total resistance of the resistors from pin 5 (ISET) to the case. The maximum current in each of the four channels (in milliamperes) for the Rset resistor (in kilo-ohms) is determined from the ratio 3000 * 1.2V / Rset.
Repair MainBoardThe appearance of MainBoard T.VST29.61C is shown in the figure below:
T.VST29.61C
T.VST29.61C can be used in TVs:
GOLDSTAR LT-24A300F (Panel M236HGE-P01), GoldStar LD-19A300R (Panel V185B1-PE1), SUPRA STV-LC19410WL (Panel M185BGE-P02 HK185WLEDM-CH15H), SUPRA STV-LC2277FL (Panel LM215DA-T01), SUPRA STV-LC22410WL (Panel LM216DA-T01), SUPRA STV-LC24410FL (Panel M236H1-P01 HK236WLEDM-CH84H ).
External view of the power supply
Main features of SUPRA STV-LC22410WL device:
Installed matrix (LED-panel) LM216DA-T01.
To power the backlight LEDs, a converter is used, combined with the power supply, controlled by the OB3362RP PWM controller.
The formation of the necessary supply voltages for all nodes of the SUPRA STV-LC22410WL TV is carried out by the HKC-PL01 power module, or its analogs using SG6848 microcircuits (6 pin AExxx) and power switches of the SVF7N65F type.
MainBoard - the main board (motherboard) is a T.VST29.61C module, using CPU chips TSUMV59XE, Flash GD25Q32 and others.
The CDT-3SP512-36 tuner provides reception of television programs and tuning to channels.
LED TV SUPRA STV-LC22410FL with LCD display, diagonal size 22 "(56 cm) 16: 9 format. The required screen brightness of 250 cd / m2 is provided by LED backlighting. Dynamic contrast ratio of 60,000: 1 is achieved by a special control of the LEDs in depending on the illumination of the areas in the scene.This model uses an LED-panel with an edge arrangement of backlighting LEDs - Edge LED.Possibilities of the TV provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD). 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 sound system of 6 W (2x3 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, SCART, RGB, VGA, HDMI, USB. A headphone output 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, 1920x1080.
Overall dimensions: 526x377x155 mm.
TV weight: 3.48 kg.
Attention! The panel of a SUPRA STV-LC22410FL 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.
