Technical description and composition of the FUSION FLTV-32L42B TV, panel type and applicable modules. The composition of the modules.FUSION LED
Model: FLTV-32L42B
Chassis / Version: V1M12
Panel: KM315E3-CS-02
T-CON: MT3151A05-3-XC-1
LED driver (backlight): integrated into MainBoard
PWM LED driver: OB3350CP
Power Supply (PSU): integrated into MainBoard
PWM Power: LD7536
MainBoard: TP.VST59S.P89
IC MainBoard: CPU: TSUMV59XES-XG, Spi Flash: W25Q32
Tuner: R620D
Technical Specifications FLTV-32L42B
FUSION FLTV-32L42B
General repair guidelines for TV LCD LED
Repair of the FUSION FLTV-32L42B TV should begin with a careful external examination of all its components and modules. According to some external signs of a change in the state of some elements, it is sometimes possible to make assumptions about the nature of the defect, as well as determine the further direction of the troubleshooting. If charred resistors, swollen electrolytic or cermet capacitors, ring cracks in the solders of the terminals of transformers or heating elements are found, 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 TV does not turn on, no indicators on its front panel are lit or blinking. Also, if the TV does not respond to the remote control and buttons, does not make any sounds or any signs of operability when turned on, there is a certain probability that the power module is defective and needs repair. Sometimes with similar manifestations a problem can only occur in the absence of processor power, which is typical for certain FUSION models. 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 bridge of the rectifier of the mains voltage and the power switch (s) of the converter.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be found by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is checked by replacing it with a known good one.
If the FUSION FLTV-32L42B TV does not have an image, but there is sound, a malfunction in the LED backlight circuits of the KM315E3-CS-02 panel is likely. It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the power supply unit (power supply) for an overstated ESR.
Often in the absence of backlighting, disassembling the panel is required. It is necessary to check the serviceability of the transitions of the LEDs, as well as the reliability of the contact connections in the rulers and connectors.
It should be remembered that it is not possible to determine the open circuit 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.
On the TP.VST59S.P89 motherboard, in case of a malfunction, you should first check the operation of all stabilizers or power converters of the microcircuits and, if necessary, update the software (software).
When repairing an MB board, you need to check its components Cpu: TSUMV59XES-XG, Spi Flash: W25Q32. Defective items should be replaced. If BGA chips are installed, their malfunction is usually localized by heating.
Attention to the owners! Attempts to repair the FUSION FLTV-32L42B TV independently are not recommended by the manufacturer and can lead to serious negative consequences!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Service manual and sсhematic diagram TP.VST59S.P89
FIRMWARE FOR SPI FLASH -----------> FUSION FLTV-32L42B V1M12, Main: TP.VST59S.P89, Panel: KM315E3-CS-02
In the event of a failure in the software of the SPI FLASH chip from Winbond, we recommend that you definitely replace it with a new one. Sometimes faulty SPI Winbond microcircuits can recover for a while after the soldering station is heated by a hairdryer. Usually this is enough to read its contents.
Repair MainBoardThe appearance of MainBoard TP.VST59S.P89 is shown in the figure below:
TP.VST59S.P89
The TP.VST59S.P89 motherboard is combined with a power module and is an independent device made on the basis of the TSUMV59Xxx multifunction processor. Repair of such a board must begin by checking the power batteries, as well as the operability of the voltage converters and linear stabilizers necessary to provide power to certain processor nodes, in particular: + 1.2V core power, built-in DDR + 1.8V memory, and Stand- by 3.3V. The voltage of the LCD panel 5V or 12V, depending on the type of panel used, must be checked directly on the LVDS connector.
TP.VST59S.P89 can be used in TVs:
AKAI LEA-32A08G (Panel LC320EXN (SE)(E1)), AKAI LEA-28A08W (Panel ST2751A01-1), DEXP 32A3300 (Panel JHD315GH-E52), DNS H32A30 (Panel JHD315GH-E52), FUSION FLTV-32L42B (Panel KM315E3-CS-02), TELEFUNKEN TF-LED32S6 (Panel CX315DLEDM ST3151A05-5).
Main features of the FUSION FLTV-32L42B device:
Installed matrix (LED panel) KM315E3-CS-02.
The matrix control uses the Timing Controller (T-CON) MT3151A05-3-XC-1.
To power the backlight LEDs, a converter is used, combined with the TP.VST59S.P89 main board, controlled by the OB3350CP PWM controller.
The power module is combined with the MainBoard and is made according to the flyback AC / DC voltage converter circuit using LD7536 microcircuits.
MainBoard - the main board (motherboard) is a TP.VST59S.P89 module, using Cpu chips: TSUMV59XES-XG, Spi Flash: W25Q32 and others.
The R620D tuner provides television reception and channel tuning.
FUSION FLTV-32L42B TV with KM315E3-CS-02 LCD display, 32 "(81 cm) diagonal size in 16: 9 format. The LED-panel of this TV has LED backlighting - Edge LED. You can view images in high quality HD 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 PAL, SECAM, NTSC. Graphic processing and digital signal generation takes place in the standards 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, JPEG. Stereo sound is realized by two built-in speakers. NICAM STEREO audio processing system is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, SCART, VGA, 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, 1360x768.
Attention! The KM315E3-CS-02 panel of the FUSION FLTV-32L42B 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.