Technical description and composition of the SUPRA STV-LC3265FL TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC3265FL
Chassis / Version: V4L09
Panel: TC315F303
T-CON: V315H3-CPE6
LED driver (backlight): integrated into PSU
PWM LED driver: OB3350CP
MOSFET LED driver: AOD478, AOD452A
Power Supply (PSU): MP123T-24TL
PWM Power: LD7750RGP
MainBoard: T.MS18VG.71A 12246
IC MainBoard: 25Q32BSIG, TPA3124D2,
Tuner: CDT-3SP512-36
SUPRA LED
Model: STV-LC3265FL
Chassis / Version: V6L11 / V6L12
Panel: V315H3-LE3 Rev. C1
LED driver (backlight): VDT70111.00 Rev.5
Power Supply (PSU): BSF-OP4120-01 Rev.3.0
MainBoard: T.VST59S.73
IC MainBoard: Processor - TSUMV59XES Flash - W25Q32F HDMI - IT6633E-P Tuner - CDT-3NP5l1-10 UMZCH - TPA3110
Tuner: CDT-3NP5l1-10
STV-LC3265FL Specifications
SUPRA STV-LC3265FL
General recommendations for TV LCD LED repair
SUPRA STV-LC3265FL TV, like many other electronic devices, it is advisable to start repairing by inspecting all external and internal elements. Often, based on external signs and the nature of damage to elements, it becomes possible to draw some conclusions and determine a further algorithm for searching for a defect before taking the necessary measurements at control points. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred layer of paint on the resistors - all this for the repairman can be a significant clue in assumptions about the causes and consequences of a malfunction.
In the case when the STV-LC3265FL 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 working properly with such manifestations, it is necessary to check the processor power regulator (converter) on the motherboard. When repairing a power supply, it is advisable to start diagnostics with checking the mains fuse and electrolytic capacitors of the filters of the converter's secondary rectifiers. In the event of a break in the fuse, the cause should be sought in the power semiconductor elements of the pulse converter of the main power supply unit. It is necessary first of all to check the diodes of the rectifier bridge of the mains voltage and the power switch (s) of the converter.
It should be borne in mind that in the practice of repair, it is extremely rare for key transistors in switching power supplies (SMPS) to fail without reasons that should be looked for by checking other components, for example, a key breakdown can provoke faulty elements of damper circuits, or dried electrolytic capacitors or broken primary resistors power supply circuits involved in the stabilization process. In this case, all semiconductor elements of the strapping of the PWM regulator microcircuit are subject to verification, which it is desirable to check by replacement.
If the SUPRA STV-LC3265FL TV does not have a picture, but there is sound, a malfunction is likely in the LED backlight circuits of the DTW0315LL23 panel. It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the PSU (power supply) for an overestimated ESR.
To check the health of the LEDs and contact connections in their power supply circuit, it is necessary to disassemble the panel.
It should be remembered that it is not possible to determine an 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.
Repair or diagnostics of the T.VST59S.73 motherboard should start with checking the stabilizers or power converters of its microcircuits. If necessary, you should update the software (software).
Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing CPU: TSUMV59XES, Spi Flash: 25Q32 elements requires the necessary training and professional skills in repairing modules at the component level. Problems associated with BGA soldering technologies can be diagnosed by the warm-up method.
Attention to users! Self-repair of the SUPRA STV-LC3265FL TV without appropriate qualifications and experience can lead to its complete non-repairability!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC3265FL(V3L07), MAIN CV182H-E, FLASH W25Q32, TUNER CDT-3SP512-37, T-CON V315H3-CPE6, Panel TC315F303
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC3265FL V6L12 Main: T.VST59S.73, Panel: V315H3-LE3 Rev.C1, Power: BSF-OP4120-01 Rev.3.0, Led-driver: VDT70111.00 Rev.5 ;CPU: TSUMV59XES SPI Flash: W25Q32F, HDMI control: IT6633E-P, Tuner CDT-3NP5l1-10, Audio: TPA3110
Photo of the power supply -----------> foto MP123T-24TL
If a failure occurs in the SPI FLASH software produced by Winbond, we recommend changing the microcircuit to a new one. Often unreadable Winbond microcircuits can temporarily restore their functionality after a strong temperature effect, for example, warming up with a soldering station or a lighter. Sometimes this is enough to read its regular contents.
Additional MainBoard RepairThe appearance of the MainBoard T.VST59S.73 is shown in the figure below:
T.VST59S.73
It is advisable to start repairing the T.VST59S.73 motherboard, made on the basis of the TSUMV59Xxx multifunctional processor, by checking the operability of linear stabilizers or voltage converters required to provide power to the processor nodes - power supply of the core 1.2V, DDR memory 1.8V and Stand-by 3.3V mode ... In the absence of an image, but with a working backlight of the display, you should check the supply voltage of the LCD panel 5V or 12V, depending on the type of panel used.
T.VST59S.73 can be used in TVs:
SUPRA STV-LC3265FL (Panel V315H3-LE3 Rev.C1), SUPRA STV-LC2725AFL (Panel M270HGE-L21).
External view of the power supply
Main features of SUPRA STV-LC3265FL device:
Installed matrix (LED-panel) V315H3-LE3 Rev. C1.
The LED driver VDT70111.00 is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the SUPRA STV-LC3265FL TV is carried out by the BSF-OP4120-01 power module, or its analogs.
MainBoard - the main board (motherboard) is a T.VST59S.73 module, using microcircuits Processor - TSUMV59XES Flash - W25Q32F HDMI - IT6633E-P Tuner - CDT-3NP5l1-10 UMZCH - TPA3110 and others.
The CDT-3NP5l1-10 tuner provides reception of television programs and tuning to channels.
Information from an alternative source:
SUPRA STV-LC3265FL
Panel type (matrix): TC315F303
Motherboard: T.MS18VG.71A 12246, 25Q32BSIG, PS421, AJ1117 х2, AIC2857F, TPA3124D2, Tuner: CDT-3SP512-36
T-con: V315H3-CPE6, CM2801A, CM501, 9674E
PSU & Invertor: MP123T-24TL, LD7750RGP, OB3350CP, BA2K1X, 63NG, BA1V5R
Remote control: RC1B
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V315H3-LE3
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: MVA, Normally Black, Transmissive
Active Area: 698.4x392.85 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 6000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
SUPRA LED TV STV-LC3265FL with LCD V315H3-LE3, 32 "(81 cm) diagonal 16: 9. The required screen brightness of 450 cd / m² is provided by LED backlight. Dynamic contrast ratio of 80000: 1 is achieved by special control operation of LEDs depending on the illumination of areas in the scene.This model uses an LED-panel with an edge arrangement of backlighting LEDs - Edge LED.The TV capabilities provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphics resolution in 1080p (Full HD The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal shaping occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, JPEG.
Speaker power of 16 W (2x8 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 x2, audio x2, component, SCART, VGA, HDMI x3, USB. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080.
The power consumed by the TV in operating mode from the network is 120 watts.
Overall dimensions: 792x565x200 mm.
TV weight: 9.6 kg.
Attention! SUPRA STV-LC3265FL LED TV panel V315H3-LE3 Rev. C1 is an expensive and unreliable element.
Do not allow any impacts on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV non-repairable.