Technical description and composition of the MYSTERY MTV-2615LW TV, type of panel and applicable modules. The composition of the modules.MYSTERY LED
Model: MTV-2615LW
Chassis / Version: 090-6M181F-01
Panel: KPL-260B1CE04 // (V260H1)
LED driver (backlight): integrated into PSU
Power Supply (PSU): KPS-L060C2-01
PWM Power: FSQ0765
MainBoard: 090-6M181F-01
IC MainBoard: CPU: MST6E181VS-LF-Z1; SPI Flash: W25Q32;
Tuner: AFT7 / W034G
Technical Specifications MTV-2615LW
MYSTERY MTV-2615LW
General repair guidelines for TV LCD LED
Diagnostics of malfunctions and repairs of MYSTERY MTV-2615LW, as well as other electronic devices, is recommended to begin with an external inspection of the external and internal elements. A visible physical change in some components can sometimes suggest a further troubleshooting direction. Carbonized paint on the upper layer of resistors, electrolytic capacitors of rectifier filters swollen after boiling, cracked soldering at the terminals of heating elements or transformers can often suggest the cause of the defect and possible consequences.
If the MYSTERY MTV-2615LW 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 malfunction. In some cases, only the processor power regulator may be faulty. When repairing the power supply, it is advisable to start the diagnostics by checking the mains fuse and the electrolytic capacitors of the filters of the converter secondary rectifiers. In the event of a fuse breaking, the reason should be sought in the power semiconductor elements of the pulse converter of the main power supply. First of all, it is necessary to check the diodes of the rectifier bridge of the mains voltage and the power key (s) of the converter. The complete inoperability of the power supply unit can be caused by a short circuit in the power elements in the primary circuit, followed by an open fuse, or a short circuit in the loads.
The reasons for the breakdown of the power switch in switching power supplies (IIPS) can be different, for example, a malfunction of semiconductor cells or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller chip or broken resistors in its bundle.
If the MYSTERY MTV-2615LW TV does not have an image, but there is sound, a malfunction in the backlight circuits of the LED panel kpl-260b1ce04 (v260h1) is likely.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as the contact connections in the connectors and soldering.
When trying to detect a break in the LED lines, it should be taken into account that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
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 attempts to repair the MB board (SSB), it is necessary to check the health of its elements - CPU: MST6E181VS-LF-Z1; SPI Flash: W25Q32; which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
If the TV works normally from external devices, but does not tune into television channels, the AFT7 / W034G tuner may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals. Sometimes the cause of the inoperability of the tuner may be a software failure.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair only to professionals with sufficient experience in the field of electronic equipment repair.
FIRMWARE FOR SPI FLASH -----------> MYSTERY MTV-2615LW, Main: 090-6M181F-01, Panel: kpl-260b1ce04 (v260h1)
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-2615LW device:
Installed matrix (LED panel) KPL-260B1CE04 or (V260H1).
To power the backlight LEDs, a converter is used, combined with a power supply.
The necessary supply voltages for all nodes of the MYSTERY MTV-2615LW TV are generated by the KPS-L060C2 power supply module or its analogs using FSQ0765 microcircuits.
MainBoard - the main board (motherboard) is a 090-6M181F-01 module, using CPU chips: MST6E181VS-LF-Z1; SPI Flash: W25Q32; and others.
The AFT7 / W034G tuner provides TV reception and channel tuning.
TV MYSTERY MTV-2615LW with LCD KPL-260B1CE04, diagonal size 26 "(66 cm) 16: 9 format. The required brightness of the screen 380 cd / m² is provided by LED backlight LED. Contrast, as the ratio of maximum brightness to minimum, is 800: 1. Edge LED backlighting is implemented in the LED-panel of this TV - Edge LED. High quality HD images can be viewed 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 analog systems . Emah PAL, SECAM, NTSC Image processing and the formation of the digital signal is in 480i standards, 480p, 576i, 576p, 720p, 1080i, 1080p Supported multimedia file formats:. MP3, MPEG4, JPEG.
The power of the speaker system of sound 8 W (2x4 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, SCART, 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.
The power consumed by the TV in the operating mode from the network is 45 watts.
Dimensions: With stand 642x444x209 mm, Without stand 570x345x70 mm.
Attention! The KPL-260B1CE04 panel of the MYSTERY MTV-2615LW 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.