Wednesday, 1 July 2020

REPAIR / SERVICING TV FUSION FLTV-32LF11

Technical description and composition of the FUSION FLTV-32LF11 TV, panel type and applicable modules. The composition of the modules.
FUSION LED
Model: FLTV-32LF11
Chassis / Version: T.MT8222
Panel: V315H4-LE2
LED backlight: V315H4-LE2-TREF3, V315H4-LE2-TLEF3
LED driver (backlight): T87D106.00
MainBoard: T.MT8222.10B 10186
IC MainBoard: CPU: MT8222AHMU, Flash: WINBOND 25Q32BVSIG, Eeprom: FT24C32
Tuner: TDQ-6F6 / T1260W
Technical Specifications FLTV-32LF11
FUSION FLTV-32LF11
General repair guidelines for TV LCD LED
Diagnostics of malfunctions and repairs of the FUSION FLTV-32LF11, as well as other electronic devices, is recommended to begin with an external examination of the external and internal elements. Often, based on certain external signs, it may be possible to draw certain conclusions about the reasons for the failure of certain circuit elements even before the necessary measurements are made, which will determine the further algorithm for troubleshooting and localizing the defect. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a significant clue in the assumptions about the causes and consequences of the malfunction.
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. Diagnostics and repair of the common power supply should always begin with a check of the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
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-32LF11 does not have an image, but there is sound, the backlight LEDs of the CMO V315H4-LE2 panel or their power converter may malfunction. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working.
A malfunction in the backlight circuits often occurs due to a break in the power supply lines 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.
To detect a break in the LED lines without disassembling the panel, a current source is required. It is impossible to open transitions connected in series with a simple multimeter; voltage of several tens of volts is necessary.
Repair of the motherboard T.MT8222.10B 10186 should begin with the diagnosis and verification of all linear stabilizers or power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM.
In cases of attempts to repair the MB (SSB) board, it is necessary to check the health of its elements - CPU: MT8222AHMU, Flash: WINBOND 25Q32BVSIG, Eeprom: FT24C32 which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
Before changing the TDQ-6F6 / T1260W tuner, if it is not possible to tune to television channels, make sure that there are supply voltages, including varicap power (30-33V), which must be measured on the corresponding tuner pins.
Attention! For users and owners of FLTV-32LF11 TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-serviceability of the device.


FIRMWARE FOR SPI FLASH  ----------->   FUSION FLTV-32LF11, Main: T.MT8222.10B 10186, Panel: CMO V315H4-LE2



 In cases where a failure has occurred in Winbond's SPI FLASH software, we recommend replacing the chip with a new one. Often, faulty Winbond microcircuits can temporarily restore their functionality after temperature exposure, for example, when a soldering station is heated by a hairdryer. Sometimes this is enough to read the regular contents of the software.
Repair MainBoard
The appearance of MainBoard T.MT8222.10B is shown in the figure below:
T.MT8222.10B
T.MT8222.10B can be used in TVs:
FUSION FLTV-32LF11 (Panel V315H4-LE2), SUPRA STV-LC2625LF (Panel V260H1-L03).
Main features of the FUSION FLTV-32LF11 device:
Installed matrix (LED-panel) V315H4-LE2.
The LED driver T87D106.00 is used to power the backlight LEDs.
The required supply voltage for all nodes of the TV FUSION FLTV-32LF11 provides a switching power supply.
MainBoard - the main board (motherboard) is a T.MT8222.10B module, using CPU chips: MT8222AHMU, Flash: WINBOND 25Q32BVSIG, Eeprom: FT24C32 and others.
The TDQ-6F6 / T1260W tuner provides TV reception and channel tuning.
Information from an alternative source:
FUSION FLTV-32LF11 Version V1J08
Panel Type (Matrix): DTV315LSC02-A,
Motherboard: T.MT8222.10B 10186, MT8222AHMU/ 1008-BMAL, 25Q32BVSIG, H5DU2562GTR-FAC, CM2802A, 9674E, CM501, 4435A, Tuner: TDQ-6F6/T1260W,
T-con: V315H1,
PSU: AYL320403 REV: 1.2, IC291089, LB5990, TL494C x4, ME12P04
Remote control: RCF1B
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V315H4-LE2
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920 (2) x1080 (2), FHD
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 697.92x392.58 mm
Surface: Antiglare (Haze 14%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 4000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
FUSION FLTV-32LF11 TV with V315H4-LE2 LCD display, 32 "(81 cm) diagonal size in 16: 9 format. The required brightness of the screen is 450 cd / m² LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 3000: 1 Dynamic contrast ratio of 12000: 1 is achieved by special control of LEDs operation.The LED-panel of this TV is equipped with end LED backlighting - Edge LED.The design and technical capabilities of the TV include viewing programs and movies in high quality HD at a resolution of 1920x1080 pixels in graphic decomposition according to the standard 1080p (Full HD). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported formats multimedia files: MP3, WMA, MPEG4, Xvid, DivX, JPEG.
The power of the sound system 30 W (2x15 W) provides two speakers. It uses the NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART x2, RGB, 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.
The power consumed by the TV working in the network mode is 120 watts.
Overall dimensions: without stand 770x552x33 mm.
The mass of the TV: without stand: 11.4 kg.
Attention! The V315H4-LE2 panel of the FUSION FLTV-32LF11 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.