Technical description and composition of the SUPRA STV-LC2695WL TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC2695WL
Chassis / Version: V2L06
Panel: HT260WXC-200
T-CON: HT260WXC-200 PCB-X0.0 / 47-600379
Power Supply (PSU): KPS + L048C2 34008088
MainBoard: 35016539 KL260S95 BOE-200E
IC MainBoard: UOC: MST6E182VSA-LF-Z1, FLASH: 25FL032, SOUND: MSH9010-LF
Tuner: TUN: AFT7 / W127
STV-LC2695WL Specifications
SUPRA STV-LC2695WL
General recommendations for TV LCD LED repair
SUPRA STV-LC2695WL TV, like many other electronic devices, it is advisable to start repairing by inspecting all external and internal elements. Sometimes, based on the visible changes in the components of the device, it is possible to draw some conclusions and determine the direction of further troubleshooting even before the necessary measurements begin. 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.
If the TV does not turn on, none of the indicators on its front panel are on or blinking. Also, if the TV does not respond to the remote control and buttons, does not emit any sounds or any signs of operability when turned on, there is a certain probability that the power module is faulty and needs repair. Sometimes a problem with similar manifestations can occur only in the absence of processor power, which is typical for certain SUPRA models. 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.
As a rule, switches in switching power supplies (SMPS) are quite reliable and rarely fail without reasons that should be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM microcircuit is checked by replacing it with a known good one.
If the SUPRA STV-LC2695WL has no picture, but there is sound and the TV is controlled by the remote control, there is likely a problem in the HT260WXC-200 panel backlight circuits. The LEDs or the power converter - LED driver may be faulty. Often in such cases, when the TV is turned on, an image appears and immediately disappears. First of all, you need to make sure that the electrolytic capacitors of the rectifier filter supplying the LED driver are in good working order, and check the LEDs by connecting those that are known to be working for diagnostics.
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.
To identify an open circuit in the LED lines without disassembling the panel, a current source is required. It is impossible to open the junctions connected in series with a simple multimeter; a voltage of several tens of volts is required.
Complex repair of MB (SSB) is possible only in a service center with the necessary equipment. Checking or replacing elements UOC: MST6E182VSA-LF-Z1, FLASH: 25FL032 requires the necessary training and professional skills to repair modules at the component level. Problems associated with BGA soldering technologies can be diagnosed by the warm-up method.
Before changing the tuner TUN: AFT7 / W127, if it is not possible to tune to television channels, you should make sure that there are supply voltages, including the supply of varicaps (30-33V), which must be measured at the corresponding terminals of the tuner.
Attention to users! Self-repair of the SUPRA STV-LC2695WL TV without proper qualifications and experience can lead to its complete non-repairability !!!!!!!!!!
FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC2695WL, CPU: MST6E182VSA-LF-Z1, Panel HT260WXC-200
The appearance of MainBoard 35016539 is shown in the figure below:35016539
35016539 can be used in TVs:
SUPRA STV-LC2695WL (Panel HT260WXC-200), SUPRA STV-LC2395WL (Panel LTA230AP01).
Main features of SUPRA STV-LC2695WL device:
Installed matrix (LED panel) HT260WXC-200.
The matrix is controlled by the Timing Controller (T-CON) HT260WXC-200.
The formation of the necessary supply voltages for all nodes of the SUPRA STV-LC2695WL TV is carried out by the KPS + L048C2 power module, or its analogs.
MainBoard - the main board (motherboard) is a 35016539 module, using UOC chips: MST6E182VSA-LF-Z1, FLASH: 25FL032, SOUND: MSH9010-LF and others.
Tuner TUN: AFT7 / W127 provides reception of television programs and tuning to channels.
Information from an alternative source:
SUPRA STV-LC2695WL Version V2L06
Panel type (matrix): HT260WXC-200,
Motherboard: KL260S95-BOB-200B, MST6E182VSA-LF-Z1, K4T51163QJ-BCF8, Tuner: AFT7 / W127
T-con: HT260WXC-200 PCB-X0.0 / 47-600379 (not removable)
PSU: KPS + L048C2 34008088 P / N: * 35016038
Additional technical information about the panel:
Brand: BOE
Model: HT260WXC-200
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 575.769x323.712 mm
Surface: Antiglare (Haze 25%), Hard coating (3H), Antireflection
Brightness: 350 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 5 (Tr + Td)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
LED TV SUPRA STV-LC2695WL with LCD HT260WXC-200, diagonal size 26 "(66 cm) 16: 9 format. The required screen brightness of 400 cd / m² is provided by LED backlighting. Contrast - the ratio of maximum brightness to minimum is 1000: 1 Dynamic contrast ratio of 50,000: 1 is achieved by special control of LEDs depending on the illumination of areas in the scene.This model uses an LED panel with an edge LED backlighting - Edge LED. It is possible to view broadcasts and films and images in high quality HD at resolution 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready) .Input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p.
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 x2, audio x3, component, VGA, HDMI. 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.
The power consumed by the TV in operating mode from the network is 60 watts.
Dimensions: With stand 648x454x210 mm, Without stand 648x415x36 mm.
Attention! The HT260WXC-200 panel of the SUPRA STV-LC2695WL 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.