Technical description and composition of the TV SUPRA STV-LC2395WL, type of panel and applicable modules. The composition of the modules.SUPRA LED
Model: STV-LC2395WL
Chassis / Version: V1L06
Panel: LTA230AP01
LED driver (backlight): KLD + L014E03 (-01) REV-00 34007653 (35015501)
Power Supply (PSU): L036C1 KPS + L036C1 (-02) 34007600 35015844 REV-01
MainBoard: 35016539 REV-00 KL23QS95-S-AP01
IC MainBoard: UOC: MST6E182VSA-LF-Z1, FLASH: 25FL032, SOUND: MSH9010-LF
Tuner: AFT7 / W127
Control: 35015697 2395 REV-01
Technical Specifications STV-LC2395FL
SUPRA STV-LC2395WL
General repair guidelines for TV LCD LED
Possible malfunctions
- SUPRA STV-LC2395WL does not turn on and does not show any signs of performance at all. Does not blink indicators and does not respond to control buttons.
In such cases, the fault should be sought first in the L036C1 power supply module. It is necessary to measure its output supply voltage, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for the probability of breakdown in semiconductor PN junctions.
In case of any breakdowns in the secondary circuits, the converter can operate in emergency short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key more often breaks.
The breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in the circuits supplying the PWM controller, frequency-setting or damper ones, as well as in the circuits of Negative Feedback (OOS) stabilization. PWM controllers (PWM), if they do not have visible damage to the chassis and open short circuit between the terminals, are usually checked by replacement.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
As a rule, in such cases there is no display backlight. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
- The indicator blinks or lights up constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the 35016539 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Board repair and replacement of UOC chips: MST6E182VSA-LF-Z1, FLASH: 25FL032, SOUND: MSH9010-LF are carried out with the necessary equipment, and the corresponding element base. Malfunctions associated with the application of the soldering technology of the BGA processor can be localized by the heating method.
In the absence of tuning to the channels of on-air or cable television, you should make sure that the software is correct, as well as in accordance with the ratings of the supply voltages at the terminals of the AFT7 / W127 tuner. It is also necessary to check the presence of pulses of data exchange between the tuner and the processor via the I2C bus using an oscilloscope.
TV users and owners must remember that attempts to independently repair a SUPRA STV-LC2395WL TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH -----------> SUPRA STV-LC2395WL V1L06, Main: 35016539 REV-00 KL23QS95-S-AP01, Panel: LTA230AP01
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).
The appearance of the power supply
Main features of the SUPRA STV-LC2395WL device:
Installed matrix (LED-panel) LTA230AP01.
The LED driver KLD + L014E03 is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the SUPRA STV-LC2395WL TV is carried out by the power module L036C1, or its analogs.
MainBoard - the main board (motherboard) is a module 35016539, using UOC chips: MST6E182VSA-LF-Z1, FLASH: 25FL032, SOUND: MSH9010-LF and others.
The AFT7 / W127 tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA230AP01
Type: a-Si TFT-LCD, Panel
Diagonal size: 23.0 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 508.152x285.696 mm
Surface: Antiglare
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 68%
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: 11S3P WLED Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
LED TV SUPRA STV-LC2395FL with LCD LC230EUE, diagonal size 23 "(58 cm) 16: 9 format. The required brightness of the screen is 250 cd / m² LED backlight LED. Contrast - the ratio of maximum brightness to minimum is 1000: 1. Dynamic contrast ratio of 50,000: 1 is achieved by special control of the LEDs depending on the lighting in the plot.This model uses an LED panel with an end-mounted LED backlight - Edge LED.The TV features include viewing programs and movies in high quality HD at a resolution of 1920x1080 pixels in graphic 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 the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p.
The power of the sound system 4 W (2x2 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 x2, audio x3, component, VGA, HDMI. 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, 1360x768.
The power consumed by the TV in the operating mode from the network is 38 watts.
Overall dimensions: With a support 587x415x209 mm, Without a support 587x377x34 mm.
Attention! The LC230EUE (TD) (A1) panel of a SUPRA STV-LC2395FL 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.