Technical description and composition of the FUSION FLTV-26W4 TV, panel type and applicable modules. The composition of the modules.Fusion
Model: FLTV-26W4
Chassis / Version: T.MT8222.8A V1J04
Panel: V260B1-L31 Ver.426C
MainBoard: T.MT8222.8A
IC MainBoard: CPU: MT8222ARMU, Spi flash: 25L3205
Tuner: TDQ-6F6 / T1260W
Technical Specifications FLTV-26W4
FUSION FLTV-26W4
General recommendations for repairing TV LCD
Repair of all electronic devices, including the FUSION TV, based on the T.MT8222.8A V1J04 chassis, it is advisable to start with an external examination of its external and internal elements. Specific external damage to some elements can sometimes indicate further actions to determine the malfunction of the TV and localize the defect before the necessary measurements are taken. Experienced repairmen are often aware of the causes of the defect and the possible consequences, for example, from ring cracks in the soldering of the leads of the elements, as well as from swollen capacitors or resistors burnt to coal dust and other external indirect signs.
If the FLTV-26W4 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 module. In some cases, only the stabilizer or power converter of the control processor may be faulty, which is typical for some FUSION models. When diagnosing and repairing the power supply, first of all, replace the swollen filter capacitors of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module — rectifier diodes and transistors in the primary circuit.
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 the FUSION FLTV-26W4 does not have an image, but there is sound and the TV is controlled from the remote control, a malfunction in the display backlight nodes is likely. The lamps or the power converter - inverter may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to verify the operability of the electrolytic capacitors of the rectifier filter supplying the inverter, and check the LCD lamps by connecting external and obviously serviceable for diagnosis to the connectors. 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 their completion, it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
On the T.MT8222.8A motherboard, in case of a malfunction, you should first check the performance of all stabilizers or power converters of the microcircuits and, if necessary, update the software (software). Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the CPU elements: MT8222ARMU, Spi flash: 25L3205. BGA chip malfunctions are usually easy to detect by warming up.
It should be remembered! Attempts to repair the FUSION FLTV-26W4 TV, 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 -----------> FUSION FLTV-26W4, Main: T.MT8222.8A, Panel: V260B1-L31 Ver.426C
The appearance of MainBoard T.MT8222.8A is shown in the figure below:T.MT8222.8A
T.MT8222.8A can be used in TVs:
FUSION FLTV-26W4 (Panel V260B1-L31 Ver.426C), SUPRA STV-LC2626W (Panel V260B1-L31).
Main features of the FUSION FLTV-26W4 device:
Installed matrix (LCD-panel) V260B1-L31 Ver.426C.
The required supply voltage for all nodes of the FUSION FLTV-26W4 TV provides a switching power supply.
MainBoard - the main board (motherboard) is a T.MT8222.8A module, using CPU chips: MT8222ARMU, Spi flash: 25L3205 and others.
The TDQ-6F6 / T1260W tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V260B1-L31
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 575.769x323.712 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 3/5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
FUSION FLTV-26W4 TV with V260B1-L31 LCD, 26 "(66 cm) diagonal size in 16: 9 format. 500 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. Contrast as the ratio of maximum brightness to the minimum is 800: 1. Dynamic contrast ratio of 2000: 1 is provided by special control of the backlight depending on the brightness of the plot in the plot.You can view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready). Input high-frequency or video deosignal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, WMA, MPEG4, JPEG.
The power of the sound system 16 W (2x8 W) provide 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, audio x3, S-Video, component, SCART x2, RGB, 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.
The power consumed by the TV working in the network mode is 160 watts.
Overall dimensions: 663x495x240 mm.
TV Weight: 8.5 kg.
Attention! The V260B1-L31 Ver.426C panel of the FUSION FLTV-26W4 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!