Technical description and composition of the FUSION FLTV-22T22 TV, type of panel and applicable modules. The composition of the modules.FUSION LED
Model: FLTV-22T22
Chassis / Version: CV9202L-T
Panel: 720p HD, 1366x768
MainBoard: CV9202L-T
IC MainBoard: CPU: SPV9202BD; SPI Flash: W25Q64FVSIG; SOUND: YD1517P;
Tuner: ST03WS-2A-E
Technical Specifications FLTV-22T22
FUSION FLTV-22T22
General repair guidelines for TV LCD LED
Repair of the FUSION FLTV-22T22 TV should begin with a careful external examination of all its components and modules. It often happens that visible damage to elements or connections helps determine the direction of the troubleshooting. If ring cracks are detected in the soldered terminals of the elements or dangling connecting tracks, swollen capacitors or charred resistors - all this can be characteristic signs of the causes or consequences of an already known typical malfunction.
If the FLTV-22T22 TV does not turn on, does not make any sounds when it is turned on, and also no indicators light up or blink on the front panel, 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.
In most cases, key breakdowns in switching power supplies (SMPS) do not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective PWM chip from the manufacturer.
If the FUSION FLTV-22T22 has no image, there is sound and the channels are switched, there is a possibility of a malfunction in the backlight LED circuit of the 720p HD, 1366x768 panel, or their power converter - LED driver. Sometimes, when turned on, the image appears and immediately disappears. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the LED driver itself, including in the secondary rectifier of the main PSU.
In case of breaks in the LED circuit, a complete disassembly of the panel is required, the LEDs are checked for an open circuit, as well as the reliability of the connections in the connectors and rations of the terminals.
It should be remembered that it is not possible to determine the break in the LED lines without disassembling the panels with a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required.
On the CV9202L-T motherboard, in case of a malfunction, you should first check the performance of all the stabilizers and power converters of the microcircuits, and also, 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 SPI Flash elements: W25Q64FVSIG; SOUND: YD1517P; . BGA chip malfunctions are usually easy to detect by warming up.
The malfunction of the tuner ST03WS-2A-E is established after checking the software and all supply voltages at its terminals.
Once again, remind users! Attempts to independently repair the FUSION FLTV-22T22 TV without the appropriate qualifications and experience can lead to its complete non-repairability!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> CV9202L-T
FIRMWARE FOR SPI FLASH -----------> FUSION FLTV-22T22, Main: CV9202L-T, Panel: 720p HD, 1366x768
The appearance of the MainBoard CV9202L-T is shown in the figure below:CV9202L-T
The MainBoard CV9202L-T uses the SPV9202BD processor, W6310GKB-12 RAM, and SPI FLASH 8Mb ROM.
It is advisable to begin repairing the motherboard by checking all voltage converters and linear stabilizers necessary to provide power to the nodes and chips in operating and standby mode. The processor core is powered by + 1V. Also, for the operation of the SPV9202BD, + 2.5V and + 3.3V are required. Check the power supply of the LCD panel (depending on the type, + 5V or + 12V) it is convenient 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 25Q64 firmware should be updated.CV9202L-T can be used in TVs:
AIWA 24LE7020 (Panel V236BJ1-P01), BBK 22LEM-1006/FT2C (Panel M215HTN01.1 KM215N19-AU-01), DEXP 19A3100 (Panel CX185LEDM), DEXP 22A7100 (Panel T215HVN01.0 M215HVN01.0), FUSION FLTV-24T22 (Panel M236HGE-P02), FUSION FLTV-22T22 (Panel 720p HD 1366x768), SHIVAKI STV-24LED14 (Panel V236BJ1-P01 / CX236LEDM), SUPRA STV-LC24T410FL (Panel M236HGE-P01), SUPRA STV-LC19T410WL (Panel HK185WLEDM CH25H), SUPRA STV-LC22T410FL (Panel LC215DT5A), SUPRA STV-LC24T410WL (Panel HK236WLEDM-CH24H), SUPRA STV-LC19T880WL (Panel LC185TT7A).
Main features of the FUSION FLTV-22T22 device:
Installed matrix (LED-panel) 720p HD, 1366x768.
The required supply voltage for all nodes of the TV FUSION FLTV-22T22 provides a switching power supply.
MainBoard - the main board (motherboard) is a CV9202L-T module, using Cpu chips: SPV9202BD; SPI Flash: W25Q64FVSIG; SOUND: YD1517P; and others.
The ST03WS-2A-E tuner provides reception of television programs and tuning to channels.
FUSION FLTV-22T22 TV with a 720p LCD display, 22 "(56 cm) diagonal size in 16: 9 format. The required screen brightness of 280 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 80,000: 1 is achieved by special control of the LEDs. The LED panels of this TV are equipped with edge LED backlighting - Edge LED. 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 The graphic processing and digital signal generation takes place in the standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, MPEG4, MKV, JPEG. Stereo sound is realized by two built-in 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), USB. 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, DVB-C, DVB-T2 standards.
Attention! The 720p HD, 1366x768 panel of the FUSION FLTV-22T22 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.