Technical description and composition of the SUPRA STV-LC32520AWL TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC32520AWL
Chassis / Version: T.VST59.A5
Panel: 720p HD, 1366x768
MainBoard: T.MS18VG.72 T.VST59.A5
IC MainBoard: CPU TSUMV59XE-Z1, Flash 25Q32B
STV-LC32520WL Specifications
SUPRA STV-LC32520AWL
General recommendations for TV LCD LED repair
Repair of the SUPRA STV-LC32520AWL TV should begin with a careful external examination of all its components and modules. From visible external changes in the state of components, it is often possible to determine the further direction of troubleshooting before taking the necessary measurements. Swollen electrolytic or metal-ceramic 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.
In the case when the STV-LC32520AWL 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 diagnosing and repairing the power supply, after replacing the swollen capacitors of the secondary rectifier filters (if any), you must first check the mains fuse. If it breaks, the power elements of the transistors and diodes of the rectifier bridge should be checked for avalanche (thermal) breakdown.
Mos-Fet switches used in switching power supplies (SMPS) rarely fail without reasons that must be looked for by checking other circuit elements. Breakdown is often caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or breakdown of resistors in stabilization circuits. The PWM controller microcircuit can also cause the breakdown of the power switch of the converter.
If, when you turn on the TV, the image appears and immediately disappears, or is absent initially when turned on, but there is sound and other functions work, there is a high probability of a malfunction of the LED driver (power converter for the 720p HD panel backlight LEDs, 1366x768). In such cases, the common power module is also subject to verification, in which the electrolytic capacitors of the rectifier filter supplying the LED driver should be checked.
In most cases when there is no backlight, it becomes necessary to disassemble the panel in order to check the LEDs, connectors, loops and all contact connections. If one or more LEDs do not work in one line, therefore, they are punctured and should be replaced.
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.
In cases of attempts to repair the motherboard T.MS18VG.72 T.VST59.A5, it is necessary to check the performance of the stabilizers or power converters of its microcircuits and, if possible, update the software (software). BGA chips can in most cases be diagnosed by local heating.
Complex repair of MB (SSB) board is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the elements of the CPU TSUMV59XE-Z1, Flash 25Q32B. Malfunctions in BGA chips are usually easy to detect by warm-up.
Attention to the owners! Attempts to repair the SUPRA STV-LC32520AWL TV yourself are not recommended by the manufacturer and can lead to serious negative consequences!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC32520AWL, Main: T.MS18VG.72 T.VST59.A5, Panel: 720p HD, 1366x768
The appearance of the MainBoard T.VST59.A5 is shown in the figure below:T.VST59.A5
T.MS18VG.72 can be used in TVs:
SUPRA STV-LC32800AWL (Panel HV320WX2-201 (HK315LEDM-BHA4H)), SUPRA STV-LC32520WL (Panel T320XVN02 001 HK315WLEDM-AHJ8H), SUPRA STV-LC32790WL (Panel HK315LEDM-BH81H(HV320WX2-261)), SUPRA STV-LC46500FL (Panel V460HJ1-PE1), SUPRA STV-LC32510WL (Panel 720p HD 1366x768), SUPRA STV-LC39520FL (Panel V390HJ1-P02 HK390LEDM-CH06H), SUPRA STV-LC32K800WL (Panel HV320WX2-201), SUPRA STV-LC42790FL (Panel HK420LEDM-AH17H), SUPRA STV-LC32K790WL (Panel HK315LEDM), SUPRA STV-LC32520AWL (Panel 720p HD 1366x768), SUPRA STV-LC42K790FL (Panel 1080p Full HD 1920x1080), SUPRA STV-LC32800WL (Panel HK315WLEDM-BHA4A).
Main features of SUPRA STV-LC32520AWL device:
Installed matrix (LED panel) 720p HD, 1366x768.
The necessary supply voltages for all nodes of the SUPRA STV-LC32520AWL TV are provided by a switching power supply.
MainBoard - the main board (motherboard) is a T.MS18VG.72 module, using CPU TSUMV59XE-Z1, Flash 25Q32B and others.
LED TV SUPRA STV-LC32520WL with LCD T320XVN02, 32 "(81 cm) 16: 9. 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 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards Supported multimedia file formats: MP3, 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, VGA, HDMI x3, USB. A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
The power consumed by the TV in operating mode from the network is 60 watts.
Overall dimensions: 738x495x209 mm.
TV weight: 6.6 kg.
Attention! SUPRA STV-LC32520WL LED TV panel T320XVN02 001 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.
