Technical description and composition of the FUSION FLTV-32T100T TV, panel type and applicable modules. The composition of the modules.FUSION LED
Model: FLTV-32T100T
Chassis / Version: TP.MS3463S.PB785
Panel: LVW320CSDX E29 V4
LED backlight: TCL32D05-ZC22AG-16 4C-LB320T-ZCB
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): integrated into MainBoard
PWM Power: PWM SOT23-6
MOSFET Power: TO-252
MainBoard: TP.MS3463S.PB785
IC MainBoard: SPI Flash: W25Q64FV, Audio: TDA3110
Tuner: CDT-9NT372-RFC1
Control: IR: 40-32D120-FBB2LG
Technical Specifications FLTV-32T100T
FUSION FLTV-32T100T
General repair guidelines for TV LCD LED
Possible manifestations of defects
- The FUSION FLTV-32T100T TV does not turn on and does not show any signs of operability at all. There is no reaction to the remote control and control buttons from the front panel.
In such cases, the main power source, the AC / DC voltage converter, which is combined with the MainBoard TP.MS3463S.PB785 board, may turn out to be faulty. It is necessary to measure its output supply voltages, and in case of their absence, check the serviceability of the power switches (TO-252) of the converters and rectifier diodes for the probability of breakdown in PN semiconductor junctions.
In case of breakdowns of the diodes in the secondary circuits, the converter can operate in emergency short circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key usually breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM SOT23-6 PWM chips are usually checked by replacing with new ones, or obviously working.
- There is no image, there is sound, it responds to the remote control. Or the image may appear for a second when turned on and immediately disappears.
Failure in most of these cases is detected in the nodes and backlight elements of the LED panel. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
It is impossible to check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters, as a rule, light up a single 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as an indicator of serviceability. In faulty LEDs, the zener diode will either be cut off or broken into short-circuit.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the TP.MS3463S.PB785 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Board repair and replacement of SPI Flash chips: W25Q64FV are carried out with the necessary equipment, and the corresponding element base. Faults associated with the use of BGA processor soldering technologies can be localized by the heating method.
In the absence of tuning to the channels of on-air or cable television, you should make sure that the software is correct, as well as in accordance with the ratings of the supply voltages on the terminals of the tuner CDT-9NT372-RFC1. It is also necessary to check the presence of pulses of data exchange between the tuner and the processor via the I2C bus using an oscilloscope.
TV users and owners need to remember that attempts to repair the FUSION FLTV-32T100T TV independently without the necessary qualifications and necessary experience can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH -----------> FUSION FLTV-32T100T, Main: TP.MS3463S.PB785, Panel: LVW320CSDX E29 V4
The appearance of MainBoard TP.MS3463S.PB785 is shown in the figure below:TP.MS3463S.PB785
Main features of the FUSION FLTV-32T100T device:
Installed matrix (LED-panel) LVW320CSDX E29 V4.
To power the backlight LEDs, a converter is used, combined with the main board TP.MS3463S.PB785.
The power module is combined with the MainBoard and is made according to the flyback AC / DC voltage converter circuit using PWM SOT23-6 microcircuits and TO-252 type power switches.
MainBoard - the main board (motherboard) is a module TP.MS3463S.PB785, using chips SPI Flash: W25Q64FV, Audio: TDA3110 and others.
The tuner CDT-9NT372-RFC1 provides the reception of television programs and tuning to channels.
FUSION FLTV-32T100T TV with LVW320CSDX LCD display, 32 "(81 cm) diagonal size in 16: 9 format. The required screen brightness of 220 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 100,000: 1 is achieved by special control of the LEDs. V LED TV backlighting technology for this TV model is implemented. LED viewing is possible in high quality at a resolution of 1366x768 pixels in the standard for graphic decomposition 720p (HD Ready). Supported media file formats: MP3, MPEG4, MKV, JPEG.
The power of the sound system 10 W (2x5 W) provides 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, VGA, HDMI x2, USB. An output for connecting headphones is provided.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Overall dimensions: with stand 732x477x180 mm, without stand 732x435x79 mm.
Attention! The LVW320CSDX E29 V4 panel of the FUSION FLTV-32T100T 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.