Technical description and composition of the FUSION FLTV-16W7 TV, panel type and applicable modules. The composition of the modules.Fusion
Model: FLTV-16W7
Chassis / Version: CVMV26L-G
Panel: M156MWR1
Mainboard: CVMV26L-G
IC MainBoard: Spi Flash: EN25F40, Eeprom: 24C32
Tuner: F21WT-3BAR-E
Technical Specifications FLTV-16W7
FUSION FLTV-16W7
General recommendations for repairing TV LCD
It is advisable to start repairing the FUSION TV with the CVMV26L-G chassis with a careful external examination of both internal and external elements. Often, based on certain external signs, it may be possible to draw certain conclusions about the reasons for the failure of certain elements of the circuit even before the necessary measurements are made, which will determine the further algorithm for troubleshooting and localizing the defect. Elements with visible damage, for example, capacitors swelled up after boiling the electrolyte, charred resistors in certain nodes of the circuit, as well as ring cracks in solders will help the master to guess the causes and possible consequences of the malfunction.
In cases when the FUSION FLTV-16W7 TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel are lit or blinking, and there are no sounds and no signs of operability at all, the power module is most likely faulty or there is no power processor on the motherboard (a typical defect of some models of FUSION TVs). In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
Mos-Fet keys used in switching power supplies (SMPS) rarely fail for no reason to look for when checking other circuit elements. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. The PWM controller chip can also cause a breakdown of the power switch of the converter.
If there is no image when you turn on the FUSION FLTV-16W7, or it appears for a second and disappears completely, but there is sound, most likely either the backlight or their power converter (inverter) are faulty. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the general power supply unit. If in diagnosing a malfunction, it is necessary to disable the inverter protection, there is a risk of failure of the power elements of the inverter, and special care is required during work, and after they are finished, it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
Diagnosis and repair of the CVMV26L-G motherboard is carried out by checking the performance of the stabilizers or power converters of the module chips. In some cases, a software update is required. 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 Spi Flash chips: EN25F40, Eeprom: 24C32 and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Owners of the FLTV-16W7 TV are recommended to repair only qualified specialists with experience! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH -----------> FUSION FLTV-16W7, Main: CVMV26L-G, Panel: M156MWR1
The appearance of the MainBoard CVMV26L-G is shown in the figure below:CVMV26L-G
The CVMV26L-G motherboard uses the TSUMV26KE-LF processor (TSUMV36KE-LF), combined with a scaler, SPI FLASH 520Kb ROM and EEPROM 24C02C.
It is advisable to begin repairing the MainBoard by checking the voltage converters and linear stabilizers necessary to provide power in the operating and standby modes. Check the power supply of the 5V or 12V LCD panel, depending on the type of panel used, it is necessary to measure directly on the LVDS connector. If, in the presence of the necessary supply voltage, the TV does not exit Stand-by mode, does not respond to the remote control and control buttons, the SPI Flash software should be updated.
CVMV26L-G can be used in TVs:
FUSION FLTV-16W7 (Panel M156MWR1), FUSION FLTV-19W6D (Panel TM190MFS01), SUPRA STV-LC1917W (Panel HE185WX1-100), SUPRA STV-LC2417F STV-LC2417FD (Panel M236H1-P01).
Main features of the FUSION FLTV-16W7 device:
Installed matrix (LCD-panel) M156MWR1.
The required supply voltage for all nodes of the FUSION FLTV-16W7 TV provides a switching power supply.
MainBoard - the main board (motherboard) is a CVMV26L-G module, using Spi Flash chips: EN25F40, Eeprom: 24C32 and others.
The F21WT-3BAR-E tuner provides television reception and channel tuning.
FUSION FLTV-16W7 TV with M156MWR1 LCD, 16 "(41 cm) diagonal size of 16: 9 format. 250 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. Dynamic contrast ratio 1600: 1 is provided with special operation control illumination depending on the illuminated areas in the plot. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard for graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing TCA and formation takes place in the digital signal standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Stereo realized by two built-in speakers. Used NICAM STEREO audio processing system.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART, RGB, VGA, HDMI. 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, 1280x1024, 1360x768.
Attention! The M156MWR1 panel of the FUSION FLTV-16W7 LCD TV is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!