Technical description and composition of the MYSTERY MTV-2415LW TV, type of panel and applicable modules. The composition of the modules.MYSTERY LED
Model: MTV-2415LW
Chassis / Version: V1K10
Panel: LC230FUE (TD) (A1)
Power Supply (PSU): 35015844 KPS-L032K1F (-02)
MainBoard: 090-6M181F-01
IC MainBoard: CPU: MST6E181VS-LF-Z1; SPI Flash: S25FL032KIF;
Tuner: AFT7 / W034G
Technical Specifications MTV-2415LW
MYSTERY MTV-2415LW
General repair guidelines for TV LCD LED
An external examination of the external and internal elements should be carried out in a timely manner before the start of operations for their dismantling. It often happens that visible damage to elements or connections helps determine the direction of the troubleshooting. Experienced repairmen are often aware of the causes of the defect and possible consequences, for example, from ring cracks in the soldered terminals of the elements, as well as from swollen capacitors or resistors burnt to coal dust and other external signs of certain malfunctions.
If the MTV-2415LW TV does not turn on, does not make any sounds when turned on, and also no indicators on the front panel light or blink - there is a high probability of a malfunction in the power supply module. In some cases, there may be a malfunction only in standby power. In the general case, first of all, it is necessary to check the electrolytic capacitors of the secondary rectifier filters and the fuse at the input of the network. If it is broken, then you should check for breakdown of the PN junctions of the rectifier bridge diodes and the key transistor of the converter, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Possible options.
If the power keys of the pulse converter are not equal, you should pay attention to other elements in their bundling, which may be the result or cause of their breakdown.
Sometimes the MYSTERY MTV-2415LW TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the converter for the backlight LEDs of the panel 1080p Full HD, 1920x1080, or a break in the LED circuit is possible. In such cases, first of all, it is necessary to verify the operability of the electrolytic capacitors of the filter by supplying the LED driver itself, including the PSU.
The lack of backlight often occurs due to an open circuit in the LED circuit. There is a need for disassembling the panel and checking the LEDs themselves, as well as the same contact connections in the connectors and rations of the terminals.
To detect a break in the LED lines without disassembling the panel, a current source is required. It is impossible to open transitions connected in series with a simple multimeter; voltage of several tens of volts is necessary.
In cases of attempts to repair the motherboard 090-6M181F-01, 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.
In cases of complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, sometimes it may be necessary to replace its CPU chips: MST6E181VS-LF-Z1; SPI Flash: S25FL032KIF; and other possible malfunctioning components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
AFT7 / W034G tuner malfunction is established after checking the software and all supply voltages at its terminals.
It should be remembered! Attempts to repair the TV MYSTERY MTV-2415LW, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
FIRMWARE FOR SPI FLASH -----------> MYSTERY MTV-2415LW, Main: 090-6M181F-01, Panel: 1080p Full HD, 1920x1080
The appearance of MainBoard 090-6M181F-01 is shown in the figure below:090-6M181F-01
090-6M181F-01 can be used in TVs:
MYSTERY MTV-3215LW (Panel LTA320AN01 D03), MYSTERY MTV-3215LW (Panel LTA320AN01 HD), MYSTERY MTV-2415LW (Panel 1080p Full HD 1920x1080), MYSTERY MTV-2615LW (Panel KPL-260B1CE04).
Main features of the MYSTERY MTV-2415LW device:
Installed matrix (LED-panel) LC230FUE (TD) (A1).
The formation of the necessary supply voltages for all nodes of the MYSTERY MTV-2415LW TV is carried out by the power supply module 35015844, or its analogues.
MainBoard - the main board (motherboard) is a 090-6M181F-01 module, using CPU chips: MST6E181VS-LF-Z1; SPI Flash: S25FL032KIF; and others.
The AFT7 / W034G tuner provides TV reception and channel tuning.
The MYSTERY MTV-2415LW TV with a 24 "(61 cm) diagonal LCD display has a 16: 9 aspect ratio. The required screen brightness of 250 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 1000: 1. Edge LED backlighting is implemented in the LED-panel of this TV - Edge LED.The design and technical capabilities of the TV include viewing programs and movies in high quality HD at a resolution of 1920x1080 pixels in a graphical decomposition according to the standard 1080p (Full HD). -frequency or video signal can be processed in the analog PAL, SECAM system, NTSC Image processing and generation of the digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p Supported multimedia file formats:.. MP3, MPEG4, JPEG.
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, audio x3, component, VGA, HDMI, 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.
Dimensions: With stand 642x444x209 mm, Without stand 570x345x70 mm.
Attention! The 1080p Full HD, 1920x1080 panel of the MYSTERY MTV-2415LW 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.