Technical description and composition of the SUPRA STV-LC32440WL TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC32440WL
Chassis / Version: CV59SH-EPW
Panel: LC315TU3A // LC315 (TU) (4A)
LED backlight: 3BL-T6324102-005B, 3BL-T6324102-006B
T-CON: RUNTK5003; MT71168MFG, MAX17126, 9667E
LED driver (backlight): integrated into PSU
Power Supply (PSU): CVB32009
MainBoard: CV59SH-EPW
Tuner: CDT-3NP5I1-10
Control: Service Mode: Menu - 0000
STV-LC32440WL Specifications
SUPRA STV-LC32440WL
General recommendations for TV LCD LED repair
Repair of electronic equipment usually begins with its external examination and diagnosis of a malfunction. In this case, you should inspect all internal elements of the CV59SH-EPW chassis, as well as external hull ones. Visible damage to elements can sometimes indicate the direction of searching for a defect even before the necessary measurements are taken. Swollen electrolytic or sintered capacitors, charred resistors, ring cracks in the soldering of the element terminals - all this can significantly help the master to determine the causes and consequences of the malfunctions in the TV.
Sometimes the SUPRA STV-LC32440WL TV just won't turn on. No control lamps on the front panel are on or blinking, the TV does not respond to the remote control and does not emit any sounds or any signs of life when turned on. The most likely cause of a malfunction is the failure of the common power module. If it is working properly, you need to check the processor batteries on the SSB (Main Board). Diagnostics and repair of the common power supply should always begin with 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 breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the mains rectifier, as well as the large electrolytic capacitor of the mains rectifier filter.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (SMPS) it does not fail by itself without reasons that should be looked for by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
In cases where the SUPRA STV-LC32440WL TV has lost the image, but there is sound and all other functions are operational, there is a possibility of a malfunction of the inverter (converter for powering the backlight lamps). When you turn on the TV, the image may appear briefly and disappear immediately. It should be borne in mind that with such manifestations, the lamps themselves fail, the malfunction of which can be detected by replacing, connecting for diagnostics to the connectors that are known to be serviceable and suitable in power. When turning off the protection in order to ensure the possibility of diagnosing a malfunction, special care should be taken, and after all repair work is completed, it is imperative to restore the circuits and the operation of the inverter protection for the further safe operation of the TV.
If the CV59SH-EPW motherboard is faulty, first of all it is necessary to check all linear stabilizers or power converters of its chips, and also, if necessary, update the software. Sometimes it is possible to check the health of the MB only by replacing it.
Attention to users! Self-repair of the SUPRA STV-LC32440WL TV without appropriate qualifications and experience can lead to its complete non-repairability!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC32440WL, Main: CV59SH-EPW, Panel: LC315TU3A
SUPRA STV-LC32440WL V1N03- Panel: ST3151A04-5, MainBoard: CV59SH-EPW , T-con ST3151A04-5 Ver.2.2, Power: CVB32009, IR: 29-32-39-40T8-IR-V2.0 , LED Backlight: 3BL-T6324102-002B JS-KH34DJ7D-009
The MainBoard CV59SH-EPW is shown in the figure below:CV59SH-EPW
External view of the power supply
Main features of SUPRA STV-LC32440WL device:
Installed matrix (LED panel) LC315TU3A or LC315 (TU) (4A).
Matrix control uses Timing Controller (T-CON) RUNTK5003 ;.
A converter combined with a power supply is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the SUPRA STV-LC32440WL TV is carried out by the CVB32009 power module, or its analogs.
MainBoard - the main board (motherboard) is a CV59SH-EPW module.
The CDT-3NP5I1-10 tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: PANDA
Model: LC315TU3A
Type: a-Si TFT-LCD, CELL
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: UV2A, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare, Hard coating (3H)
Glass Depth: 0.70 + 0.70 mm
Contrast Ratio: 5000: 1
Display Colors: 16.7M (6-bit + Hi-FRC)
Response Time: 7 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
SUPRA LED TV STV-LC32440WL with LC315TU3A LCD, 32 "(81 cm) 16: 9. The required screen brightness of 400 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 80000: 1 is achieved by special LED control 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.It is possible to view broadcasts, films and images in high quality HD at a resolution of 1366x768 pixels in the standard graphic resolution 720p (HD Ready). 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, WMA, MPEG4, DivX, MKV , JPEG.
Speaker power 12 W (2x6 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, VGA, HDMI x2, 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, 1360x768.
Dimensions: With stand 738x495x209 mm, Without stand 738x452x59 mm.
TV weight: 6.6 kg.
Attention! The LC315TU3A panel of the SUPRA STV-LC32440WL LED TV 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.