Technical description and composition of the TV SUPRA STV-LC24410FL, type of panel and applicable modules. The composition of the modules.SUPRA LED
Model: STV-LC24410FL
Chassis / Version: T.VST29.61C 12512
Panel: M236H1-P01 HK236WLEDM-CH84H
LED driver (backlight): integrated into PSU
PWM LED driver: OB3362RP
Power Supply (PSU): HKC-PL01
PWM Power: SG6848 (PWM SOT23-6 AExxx)
MOSFET Power: SVF7N65F
MainBoard: T.VST29.61C 12512
IC MainBoard: CPU TSUMV59XE-Z1, Flash 25Q32
Tuner: CDT-3SP512-36
Technical Specifications STV-LC24410FL
SUPRA STV-LC24410FL
General repair guidelines for TV LCD LED
SUPRA STV-LC24410FL, like other televisions, it is advisable to start repairing from inspection of external and internal 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. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
Malfunctions of the power module can be expressed in different ways, for example, SUPRA STV-LC24410FL does not turn on at all and the control lamps on its front panel do not light up and do not blink, there are no signs of operability. It should be noted that with the same external manifestations, the stabilizer (converter) of the processor power may turn out to be faulty. 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.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors in switching power supplies (SMPS) fail for no reason that should be sought by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, or dried electrolytic capacitors or dangling primary resistors BP circuits involved in the stabilization process. In this case, all semiconductor elements of the binding of the PWM controller microcircuit are subject to verification, which it is desirable to verify by replacement.
If there is no image when you turn on the SUPRA STV-LC24410FL, or it appears for a second and disappears, but there is sound, most likely there is a malfunction in the backlight LED circuit of the M236H1-P01 HK236WLEDM-CH84H panel, or in their power converter. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the general power supply unit.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
An open in the LED lines connected in series cannot be detected with a multimeter or tester without disassembling the panel. To open all the transitions, several tens of volts are needed, and it is best to use a current source for such purposes.
Repair or diagnostics of the T.VST29.61C 12512 motherboard should begin by checking the stabilizers or power converters of its microcircuits. If necessary, update the software (software).
In cases of attempts to repair the MB board (SSB), it is necessary to check the health of its elements - CPU TSUMV59XE-Z1, Flash 25Q32 which may require replacement with new ones. If the BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
Remember! Attempts to self-repair by users of the SUPRA STV-LC24410FL TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC24410FL, Main: T.VST29.61C 12512, Panel: M236H1-P01 HK236WLEDM-CH84H
When installing chips like SG6848T (AAH ..) instead of analogs SG6849 ... (AE ..., BB ...), it is necessary to have a frequency-setting resistor from the third output of the chip to the case. Denomination 95-100kOhm.
Of the possible replacements, we can recommend the most popular LD7535, LD7550, OB2262, OB2273 and other available analogues. The use of pin 3 must be clarified in the documentation.
To reduce the backlight current in LED drivers with an OB3362RP (TSOP16) controller, increase the total resistance of the resistors from pin 5 (ISET) to the chassis. 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 MainBoard
The 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 ).
The appearance of the power supply
Main features of the SUPRA STV-LC24410FL device:
Installed matrix (LED panel) M236H1-P01 HK236WLEDM-CH84H.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the OB3362RP PWM controller.
The necessary supply voltages for all nodes of the SUPRA STV-LC24410FL TV are generated by the HKC-PL01 power module or its analogs using SG6848 microcircuits (PWM SOT23-6 AExxx) and power switches of the SVF7N65F type.
MainBoard - the main board (motherboard) is a T.VST29.61C module, using CPU chips TSUMV59XE-Z1, Flash 25Q32 and others.
The tuner CDT-3SP512-36 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CMO
Model: M236H1-P01
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: 5.25% (with Polarizer)
Contrast Ratio: 1000: 1
Display Colors: 16.7M (8-bit)
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-LC24410FL with LCD M236H1-P01, diagonal size 24 "(61 cm) 16: 9 format. The required brightness of the screen 250 cd / m² is provided by LED backlight LED. Dynamic contrast ratio of 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 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, SCART, RGB, 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, 1920x1080.
Overall dimensions: 571x405x155 mm.
The mass of the TV: 4.04 kg.
Attention! The M236H1-P01 HK236WLEDM-CH84H panel of a SUPRA STV-LC24410FL 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.
