Technical description and composition of the GOLDSTAR LT-24T450R TV, panel type and modules used. The composition of the modules.GOLDSTAR LED
Model: LT-24T450R
Chassis / Version: 5800-A6M35G-0P10
Panel: V236BJ1-P03 RDL24OHY
LED backlight: 5800-W24000-1P00
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): Adapter 12V
MainBoard: 5800-A6M35G-0P10 VER00.01
IC MainBoard: 25Q64, TPA3113D2, MP8126
Tuner: DVB-T2
LT-24T450R Specifications
GOLDSTAR LT-24T450R
General recommendations for TV LCD LED repair
Possible manifestations of defects
- The GOLDSTAR LT-24T450R TV does not turn on, does not respond to the remote control and control panel buttons, the indicators do not light up or flash.
Often in such cases, the adapter power supply module is faulty.
The TV set is equipped with an external adapter 12V power supply. TV owners can check by replacing them and purchase them on their own in stores, but the ability to open and eliminate typical defects usually does not create difficulties for the master. Then you should measure its output voltages and, in case of their complete or partial absence, it is necessary to check the serviceability of the power switches and rectifier diodes of the converters for a possible short circuit.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in an emergency mode of short circuit without output voltages, and with a short circuit in the elements of the primary circuit, the mains fuse most often breaks off immediately and less often the current sensor in the source of the key.
Breakdown of power switches (MosFet) in switching sources is sometimes caused by malfunctions of other circuit elements, for example, in the circuits supplying the PWM controller, frequency setting or damper, as well as in the circuits of Negative Feedback (OOS) stabilization. PWM controllers (PWM), if they do not have visible damage to the case and an outright short circuit between the terminals, are usually checked by replacement.
- 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.
A malfunction is usually in these cases most likely in the backlight units of the display matrix. Most often, the reason for this is a break in the LEDs, or poor contact in the connectors of the brackets, less often the LED driver may be faulty.
To check the health of the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can check each LED separately with a simple Chinese multimeter (powered by 9 volts) in the P-N transition test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black one to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. The serviceability of the PN junction of the Zener diode indirectly indicates the serviceability of the LED-a
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals the standby mode.
Repair or diagnostics of the 5800-A6M35G-0P10 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). Repair of the board and replacement of microcircuits 25Q64, TPA3113D2, MP8126 are made if the necessary equipment and the corresponding element base are available. Malfunctions associated with the use of BGA soldering technologies can be localized by the warm-up method.
If you suspect a malfunction of the DVB-T2 tuner, first of all, you need to make sure that the software is correct, as well as the presence of the required levels of supply voltages and pulses of data exchange with the processor via the I2C bus on the corresponding terminals of the tuner.
Owners and users of the GOLDSTAR LT-24T450R TV should remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> GOLDSTAR LT-24T450R, Main: 5800-A6M35G-0P10 VER00.01, Panel: V236BJ1-P03 RDL24OHY
The appearance of the MainBoard 5800-A6M35G-0P10 is shown in the figure below:5800-A6M35G-0P10
5800-A6M35G-0P10 can be used in TVs:
TELEFUNKEN TF-LED32S27T2 (Panel LC320DXJ-SFA2 RDL320HY (LD0-803) REV.00), TELEFUNKEN TF-LED32S21T2 (Panel ST3151A05-8 Ver.2.3).
Main features of the GOLDSTAR LT-24T450R device:
Installed matrix (LED panel) V236BJ1-P03 RDL24OHY.
A converter combined with the 5800-A6M35G-0P10 main board is used to power the backlight LEDs.
To power all internal components of the GOLDSTAR LT-24T450R TV, an external adapter 12V is used.
MainBoard - the main board (motherboard) is a 5800-A6M35G-0P10 module, using 25Q64, TPA3113D2, MP8126 and others.
The DVB-T2 tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: INNOLUX
Model: V236BJ1-P03
Type: a-Si TFT-LCD, CELL
Diagonal size: 23.6 inch
Resolution: 1366x768, WXGA
Display Mode: MVA, Normally Black, Transmissive
Active Area: 521.471x293.184 mm
Surface: Antiglare (Haze 1%)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 5.8% (with Polarizer)
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit)
Response Time: 8.5 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
GOLDSTAR LT-24T450R TV with LCD V236BJ1-P03, 24 "(61 cm) diagonal, 16: 9 format. The required screen brightness of 250 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 100,000: 1 is achieved by special LED control The technology of production of the screen of this TV model is realized with LED backlighting.It is possible to view images in high quality HD at a resolution of 1366x768 pixels in the standard graphic resolution 720p (HD Ready) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal shaping occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p Supported multimedia file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker power 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), SCART, VGA, HDMI x2, MHL, 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 digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2 standards.
Attention! Panel V236BJ1-P03 of LED TV GOLDSTAR LT-24T450R 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.