Technical description and composition of the FUSION FLTV-24L31B TV, type of panel and applicable modules. The composition of the modules.FUSION LED
Model: FLTV-24L31B
Chassis / Version: V2N02
Panel: V236BK1-LE1 REV.C5
MainBoard: CV59L-E
IC MainBoard: CPU: TSUMV59XU-Z1 EEPROM: 24Q32
Tuner: CDT-3NP5I1-10
Technical Specifications FLTV-24L31B
FUSION FLTV-24L31B
General repair guidelines for TV LCD LED
Repair and diagnostics of any electronic device, in particular FUSION FLTV-24L31B, it is advisable to start with a careful external examination of internal and external elements. Visible damage to elements can sometimes indicate the direction of the search for a defect even before the necessary measurements are taken. If charred resistors, swollen electrolytic or cermet capacitors, ring cracks in the soldered terminals of transformers or heating elements are detected, it is advisable to establish the causes and consequences of the malfunction that has arisen, as well as to check the connected elements and assemblies.
If the FUSION FLTV-24L31B 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. It is advisable to start the troubleshooting of the power supply module by checking the state of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in such a state of breakdown.
It should be remembered that in the practice of repair, usually the power switches in switching power supplies (SMPS) do not fail due to their poor quality and, in such cases, it is necessary to look for the cause that led to a malfunction and provoked a breakdown of the key. Most often, the culprits of the accident are dried electrolytic capacitors or dangling resistors in the primary circuit, or the PWM controller chip itself may be faulty. It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuits.
If the FUSION FLTV-24L31B does not have an image, but there is sound and the TV is controlled by the remote control, a malfunction in the backlight circuits of the V236BK1-LE1 REV.C5 panel is likely. The LEDs or the power converter - LED driver 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 LED driver, and check the LEDs, connecting obviously known good diagnostics.
A malfunction in the backlight circuits often occurs due to an open in the power circuit of the LED lines. It requires disassembling the panel and checking the LEDs themselves, the soldering of their outputs, as well as the reliability of the connections in the connectors and the soldering of the outputs of the connectors.
It should be remembered that it is not possible to determine the break in the LED lines without disassembling the panels using 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.
If the CV59L-E motherboard is faulty, first of all it is necessary to check all the linear stabilizers or power converters of its chips, and also, if necessary, update the software. Sometimes you can check the health of MB only by replacement.
Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - CPU: TSUMV59XU-Z1 EEPROM: 24Q32 and replace failed chips with new ones. Some malfunctions can be associated with the use of BGA soldering technologies in modern Main Board technologies. Typically, such defects are detected by local heating of the chip.
If there is no reception of television channels, but the TV is working properly from external devices, first of all it is necessary to check the supply voltage of the varicaps of the tuner CDT-3NP5I1-10, which is usually within 30-33V, as well as other supply voltages at the terminals of the tuner.
Once again, remind users! Attempts to independently repair the FUSION FLTV-24L31B TV without the appropriate qualifications and experience can lead to its complete non-repairability!
FIRMWARE FOR SPI FLASH -----------> FUSION FLTV-24L31B V2N02, Main: CV59L-E, Panel: V236BK1-LE1 REV.C5
The appearance of the MainBoard CV59L-E is shown in the figure below:The MainBoard CV59L-E uses a multi-function microprocessor type TSUMV59 with an integrated scaler and an external SPI Flash ROM type 25Q32 (4Mb).
It is advisable to start repairing the motherboard by checking the + 5V voltage converters and the + 1.2V processor core power supply, as well as the + 3.3V linear voltage regulators and the 1.8V processor DDRAM internal power supply.
In the case of a working display backlight and the absence of an image, it is necessary to check the panel power (depending on the type, + 5V or + 12V), which can be measured directly on the LVDS connector. If, in the presence of all the supply voltages, the TV does not enter the operating mode, does not respond to the Remote Control and control buttons, the SPI Flash software should be updated.
CV59L-E can be used in TVs:
FUSION FLTV-24L31B (Panel V236BK1-LE1 REV.C5), FUSION FLTV-22L31B (Panel LC215DT5A), SUPRA STV-LC24500WL (Panel V236BJ1-LE1 Rev.C2), SUPRA STV-LC22500FL (Panel LC215DT5A / HK215WLEDM-DH67H).
Main features of the FUSION FLTV-24L31B device:
Installed matrix (LED-panel) V236BK1-LE1 REV.C5.
The required supply voltage for all nodes of the TV FUSION FLTV-24L31B provides a switching power supply.
MainBoard - the main board (motherboard) is a CV59L-E module using CPU chips: TSUMV59XU-Z1 EEPROM: 24Q32 and others.
The tuner CDT-3NP5I1-10 provides the reception of television programs and tuning to channels.
FUSION FLTV-24L31B TV with V236BK1-LE1 LCD, 24 "(61 cm) diagonal size in 16: 9 format. The required screen brightness of 250 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 60,000: 1 is achieved by special control of the LEDs The LED-panel of this TV is equipped with LED end-lighting - 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 analogue systems PAL, SECAM , NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, JPEG.
The power of the acoustic system of sound 6 W (2x3 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, SCART, RGB, VGA, HDMI, 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.
The power consumed by the TV working in the network mode is 40 watts.
Overall dimensions: with a support 562x394x160 mm, without a support 562x347x74 mm.
TV Weight: with stand: 2.97 kg, without stand: 2.37 kg.
Attention! The V236BK1-LE1 REV.C5 panel of the FUSION FLTV-24L31B 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.