Technical description and composition of the MYSTERY MTV-3225LT2 TV, type of panel and applicable modules. The composition of the modules.MYSTERY LED
Model: MTV-3225LT2
Chassis / Version: 40-MT10T2-MAB2HG
Panel: 720p HD, 1366x768
MainBoard: 40-MT10T2-MAB2HG (MT10T)
IC MainBoard: CPU: MT5310CD0U; SPI Flash: 25L128;
Technical Specifications MTV-3225LT2
MYSTERY MTV-3225LT2
General repair guidelines for TV LCD LED
Repair of electronic devices, including the MYSTERY MTV-3225LT2 TV, it is advisable to start with an external examination of its external and internal elements. A visible physical change in some components can sometimes suggest a further troubleshooting direction. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
If the MYSTERY MTV-3225LT2 does not turn on, no control lights on the front panel light up or blink; therefore, there is a very high probability of a power module failure. In some cases, only the processor power regulator may be faulty. After checking the mains fuse and power elements of the primary power supply circuit, it should also check the absence of a short circuit in the loads of the secondary rectifiers.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If, when you turn on the TV, the image appears and immediately disappears, or is missing initially when you turn on, but the sound has other functions that work, there is a high probability of a malfunction of the LED driver (power converter for the backlight LEDs of the panel 720p HD, 1366x768).
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
It is impossible to check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source.
In cases of attempts to repair the motherboard 40-MT10T2-MAB2HG (MT10T), it is necessary to check the operability of the linear stabilizers and power converters of its microcircuits and, if possible, update the software (software). BGA chips can sometimes be diagnosed with local heating.
Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing CPU elements: MT5310CD0U; SPI Flash: 25L128; It requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can be diagnosed by warming up.
Owners and users of the MYSTERY MTV-3225LT2 TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-serviceability of the device!
FIRMWARE FOR SPI FLASH -----------> MYSTERY MTV-3225LT2 , Main: 40-MT10T2-MAB2HG (MT10T), Panel: 720p HD, 1366x768
The appearance of the MainBoard 40-MT10T2-MAB2HG is shown in the figure below:40-MT10T2-MAB2HG
40-MT10T2-MAB2HG can be used in TVs:
MYSTERY MTV-3225LT2 (Panel 720p HD 1366x768), THOMSON T32E53DU (Panel LVW320NEAL CJUW01 V2), THOMSON T40E53DHU (Panel LVF400NE2L SJUW00).
Main features of the MYSTERY MTV-3225LT2 device:
Installed matrix (LED-panel) 720p HD, 1366x768.
The required supply voltage for all nodes of the TV MYSTERY MTV-3225LT2 provides a switching power supply.
MainBoard - the main board (motherboard) is a 40-MT10T2-MAB2HG module, using CPU chips: MT5310CD0U; SPI Flash: 25L128; and others.
MYSTERY MTV-3225LT2 TV with a 720p LCD display, 32 "(81 cm) diagonal size in 16: 9 format. The required brightness of the screen is 350 cd / m² LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 4000: 1. Edge LED backlighting is realized in the LED-panel of this TV - Edge LED. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in an analog system x PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, Xvid, DivX, MKV, JPEG.
The power of the sound system 10 W (2x5 W) provides two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, VGA, HDMI x3, USB. 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.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Dimensions: With stand 642x444x209 mm, Without stand 570x345x70 mm.
Attention! The 720p HD, 1366x768 panel of the MYSTERY MTV-3225LT2 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.