Technical description and composition of the FUSION FLTV-32L22B TV, panel type and applicable modules. The composition of the modules.FUSION LED
Model: FLTV-32L22B
Chassis / Version: V1L09
Panel: MT3151A05-2
T-CON: MT3151A05-1-XC-3
LED driver (backlight): integrated into PSU
PWM LED driver: OB3350CP
Power Supply (PSU): LK-PL320215J CQC04001011196
MainBoard: CV182H-E, Soft No: B112.130
IC MainBoard: CPU: CAT6354CQ; SPI Flash: 25Q32BV;
Tuner: CDT-3SP512-37
Technical Specifications FLTV-32L22B
FUSION FLTV-32L22B
General repair guidelines for TV LCD LED
Repair of the FUSION FLTV-32L22B TV should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. Often, by the external signs and nature of the damage to the elements, it becomes possible to draw some conclusions and determine a further algorithm for finding a defect before carrying out the necessary measurements at control points. Useful tips can include swollen capacitors, ring cracks formed in the soldered terminals, a charred paint layer on the resistors, signs of overheating of the board, and many other external signs familiar to experienced repairmen.
In the absence of any signs of operability, when the FUSION FLTV-32L22B does not turn on and does not signal anything with the control lights on the panel, there is a possibility of a malfunction of the TV power module. First of all, it is necessary to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse is broken in the power supply, in most cases a breakdown of the power key (s) is detected, which can be integrated with the PWM controller, or a separate field-effect transistor can be used. The rectifier bridge diodes and the electrolytic capacitor of the mains rectifier filter should also be checked.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors in switching power supplies (SMPS) fail for no reason that should be sought by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, or dried electrolytic capacitors or dangling primary resistors BP circuits involved in the stabilization process. In this case, all semiconductor elements of the binding of the PWM controller microcircuit are subject to verification, which it is desirable to verify by replacement.
If, when you turn on the TV, the image appears and immediately disappears, or is missing initially when you turn on, but the sound has other functions that work, there is a high probability of a malfunction of the LED driver (power converter for the backlight LEDs of the panel 720p HD, 1366x768).
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 contact connections in the rulers and connectors.
An open in the LED lines connected in series cannot be detected with a multimeter or tester without disassembling the panel. To open all the transitions, several tens of volts are needed, and it is best to use a current source for such purposes.
The CV182H-E motherboard must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up continuously. In such cases, if the converters or power stabilizers of the microcircuit are working, a software update may be necessary.
In cases of complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, sometimes it may be necessary to replace its CPU chips: CAT6354CQ; SPI Flash: 25Q32BV; and other possible malfunctioning components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by heating.
Owners and users of the FUSION FLTV-32L22B TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
FIRMWARE FOR SPI FLASH -----------> FUSION FLTV-32L22B, Main: CV182H-E, Panel: 720p HD, 1366x768
The appearance of MainBoard CV182H-E, is shown in the figure below:
CV182H-E,
The CV182H-E, 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 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.
CV182H-E can be used in TVs:
FUSION FLTV-32F18 (Panel TC315FJE1), FUSION FLTV-32L22B (Panel MT3151A05-2), SUPRA STV-LC3225AWL (Panel TH315B041 R213E), SUPRA STV-LC3225AWL (Panel TB315B201), SUPRA STV-LC46990FLH (Panel TC460FPE5).
The appearance of the power supply
Main features of the FUSION FLTV-32L22B device:
Installed matrix (LED panel) MT3151A05-2.
The matrix control uses the Timing Controller (T-CON) MT3151A05-1-XC-3.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by the OB3350CP PWM controller.
The formation of the necessary supply voltages for all nodes of the FUSION FLTV-32L22B TV is carried out by the power module LK-PL320215J, or its analogues.
MainBoard - the main board (motherboard) is a CV182H-E module, using CPU chips: CAT6354CQ; SPI Flash: 25Q32BV; and others.
The tuner CDT-3SP512-37 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CSOT
Model: MT3151A05-2
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: HVA, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 2%), Hard coating (3H)
Brightness: 300 cd / m²
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 62%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
FUSION FLTV-32L22B TV with MT3151A05-2 LCD display, 32 "(81 cm) diagonal size in 16: 9 format. The required screen brightness of 400 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 80000: 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, WMA, Xvid, DivX, MKV, JPEG.
The power of the sound system 16 W (2x8 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, component, SCART, 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, 1360x768.
A digital tuner is capable of receiving television channels in DVB-S2 standards.
Overall dimensions: 885x680x180 mm.
TV Weight: 9.8 kg.
Attention! The MT3151A05-2 panel of the FUSION FLTV-32L22B 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.