Technical description and composition of the GOLDSTAR LT-26A310R TV, panel type and modules used. The composition of the modules.GOLDSTAR LED
Model: LT-26A310R
Panel: T260XW06 V.2 // LTA230AP01
LED backlight: 26T08-04 TS26T08009A
T-CON: T260XW06 V2 CTRL BD
LED driver (backlight): 40-L26D20-DRB2XG
Power Supply (PSU): Adapter 12V
MainBoard: 40-MS8200-MAD2XG (40-MS8200-MAC2XG V8-MS82AGS)
IC MainBoard: MST6E182VS-LF-Z1, 25Q32BV
Tuner: TDQ-3CB
Control: IR: 40-YP517M-FBC2XG
LT-26A310R Specifications
GOLDSTAR LT-26A310R
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- The GOLDSTAR LT-26A310R does not turn on, the indicators on the front panel do not light or flash. The TV does not respond to control buttons and the remote control.
Usually with such manifestations, the defect is caused by faulty elements in the main power supply module Adapter.
External power supply Adapter 12V is not always subject to repair, especially since the owner can purchase it on his own. But, in some cases, it makes sense to open it and eliminate simple typical defects inherent in converters in pulse sources. Its output voltages should be measured and, in their absence, the serviceability of the power switches and rectifier diodes in the converters should be checked for possible breakdown.
In case of any breakdowns in the secondary circuits, the converter can operate in an emergency mode of a short circuit, and with a short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key is often cut off.
Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of the PWM regulator, in frequency setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) are usually checked by replacing them with new ones, or knowingly working.
- There is no picture, but there is sound and reaction to commands from the remote control. Or the image appears immediately after switching on and disappears.
The malfunction in most of such cases is found in the nodes and elements of the LED panel backlight. The reason may be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
To test the LED strips, in order to open all the transitions of the LEDs, several tens of volts or more are needed; it is best to use a current source for such purposes. The breakage of several PN junctions connected in series cannot be detected with a multimeter or tester. In such cases, it is necessary to open the panel and check each LED. If your multimeter cannot open the LED junctions in forward bias, you can sometimes detect the presence of a protective zener diode PN junction by connecting the probes in the opposite direction. If the zener diode is cut off or broken in the K / Z, then the LED is faulty and requires replacement.
- The indicator blinks or is on constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the 40-MS8200-MAC2XG motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). If it is not possible to replace the MB (SSB) board, you must check the serviceability of its elements - MST6E182VS-LF-Z1, 25Q32BV. Defective components must be replaced.
If there is no tuning for terrestrial or cable TV channels, you should make sure that the software is correct, as well as that the supply voltages on the TDQ-3CB tuner outputs are in accordance with the ratings. It is also necessary to check with an oscilloscope the presence of pulses of data exchange between the tuner and the processor via the I2C bus.
Attention! Users and owners of LT-26A310R TVs who do not have the appropriate qualifications, knowledge and experience are strongly discouraged from attempting to repair themselves in order to avoid negative consequences that may lead to complete non-repairability of the device.
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> GOLDSTAR LT-26A310R , Main: 40-MS8200-MAD2XG (40-MS8200-MAC2XG V8-MS82AGS), Panel: LTA230AP01
The appearance of the MainBoard 40-MS8200-MAD2XG is shown in the figure below:40-MS8200-MAD2XG
40-MS8200-MAD2XG can be used in TVs:
ERISSON 39LET30 (Panel V390HJ1-P01), ERISSON 32LET30 (Panel V32D30-CSOT V2), FUSION FLTV-23L18B (Panel LTA230AP01), GoldStar LT-19A310R (Panel M185XW01 V.F), HYUNDAI H-LED32V8 (Panel T315XW06 V.8).
Main features of the GOLDSTAR LT-26A310R device:
Installed matrix (LED-panel) T260XW06 V.2 or LTA230AP01.
Matrix control uses the T260XW06 Timing Controller (T-CON).
LED driver 40-L26D20-DRB2XG is used to power the backlight LEDs.
To power all the internal components of the GOLDSTAR LT-26A310R TV, an external adapter 12V is used.
MainBoard - the main board (motherboard) is a 40-MS8200-MAD2XG module, using MST6E182VS-LF-Z1, 25Q32BV and others.
The TDQ-3CB tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: AUO
Model: T260XW06 V2
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 575.769x323.712 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 350 cd / m²
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 68%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
TV GOLDSTAR LT-26A310R with LCD T260XW06, 26 "(66 cm) diagonal 16: 9. The required screen brightness of 310 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 60,000: 1 is achieved by special control of LED operation. The LED panels of this TV are equipped with edge LED backlighting.It is possible to view images in high quality HD at a resolution of 1366x768 pixels in a graphic resolution of 720p (HD Ready) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC Graphic processing and digital signal shaping takes place in 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards Supported media file formats: MP3, WMA, JPEG.
Speaker power 4 W (2x2 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, component, VGA, HDMI, USB. 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.
The power consumed by the TV operating in mains mode is 45 W.
Dimensions: without stand 656x418x62 mm.
TV weight: without stand: 5 kg.
Attention! Panel T260XW06 V.2 LED-TV GOLDSTAR LT-26A310R is an expensive and unreliable element.
Do not allow any impact 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 unrepairable.
