Technical description and composition of the FUSION FLTV-22L31B TV, type of panel and applicable modules. The composition of the modules.FUSION LED
Model: FLTV-22L31B
Chassis / Version: V2N02 // V2N07
Panel: LC215DT5A // V216BG1-PE1
LED driver (backlight): integrated into PSU
PWM LED driver: OB3350CP
Power Supply (PSU): HKL-240101
PWM Power: OB2273 (PWM SOT23-6)
MainBoard: CV59L-E // T.VST59.11
IC MainBoard: SPI FLASH: GD25Q32
Tuner: // CDT-3NP5I1-10 (D2)
Technical Specifications FLTV-22L31B
FUSION FLTV-22L31B
General repair guidelines for TV LCD LED
FUSION FLTV-22L31B, like other televisions, it is advisable to start repairing with a careful examination of the external and internal elements and modules. 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 making the necessary measurements at control points. Experienced repairmen are often aware of the causes of the defect and possible consequences, for example, from ring cracks in the soldering of the leads of the elements, as well as from swollen capacitors or resistors burnt to coal dust and other external indirect signs.
In cases when the FUSION FLTV-22L31B TV does not turn on, does not respond to the remote control and buttons, any indicators on the front panel do not light up or blink and there are no sounds and no signs of operability at all, the power module is most likely faulty or there is no power processor on the motherboard (a typical defect of some models of FUSION TVs). 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 network rectifier, as well as the large electrolytic capacitor of the filter of the network rectifier.
Power switches in switching power supplies (SMPS) fail extremely rarely for no reason and, if they are broken, it is necessary to look for a malfunction in the stabilization circuits by checking electrolytic capacitors, semiconductor devices, and resistors in the primary circuit. The reason may be a malfunction of the PWM controller chip, which can only be checked by replacing it with a new or obviously working one.
In cases where the FUSION FLTV-22L31B TV has lost an image, and the sound is there and all the other functions are operational, there is a possibility of a malfunction of the LED driver (converter for powering the panel backlight LEDs). When you turn on the TV, the image may appear briefly and disappear immediately. It must be borne in mind that with such manifestations the LEDs themselves also fail.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
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.
When trying to repair the motherboard, you should first check the serviceability of linear stabilizers or power converters of microcircuits and, if necessary, update the software (software).
In some cases, it is necessary to check or replace (if necessary) the elements of the MB board (SSB) - SPI FLASH: GD25Q32. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
Once again, remind users! Attempts to independently repair the FUSION FLTV-22L31B TV without the appropriate qualifications and experience can lead to its complete non-repairability!
FIRMWARE FOR SPI FLASH -----------> FUSION FLTV-22L31B V2N02, Main: CV59L-E
In case of failures in Winbond's SPI FLASH software, we recommend that you replace the chip itself with a new one. Sometimes Winbond microcircuits can recover for some time after high-temperature exposure, for example, heating with a soldering station or a lighter, which is sometimes enough to read its contents.
Repair MainBoard
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 power of the panel (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).
The appearance of the power supply
Main features of the FUSION FLTV-22L31B device:
Installed matrix (LED panel) LC215DT5A or V216BG1-PE1.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by the OB3350CP PWM controller.
The necessary supply voltages for all nodes of the FUSION FLTV-22L31B TV are generated by the HKL-240101 power supply module or its analogs using OB2273 microcircuits (PWM SOT23-6).
MainBoard - the main board (motherboard) is a CV59L-E module, using SPI FLASH chips: GD25Q32 and others.
Tuner // CDT-3NP5I1-10 (D2) provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: PANDA
Model: LC215DT5A
Type: a-Si TFT-LCD, CELL
Diagonal size: 21.5 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 476.64x268.11 mm
Surface: Antiglare, Hard coating (3H)
Glass Depth: 0.70 + 0.70 mm
Contrast Ratio: 600: 1
Display Colors: 16.7M (8-bit)
Response Time: 5 (Tr + Td)
Frequency: 60Hz
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
FUSION FLTV-22L31B TV with LC215DT5A LCD display, diagonal size 22 "(56 cm) 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 panels of this TV are equipped with edge LED backlighting - 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 analog 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 30 watts.
Overall dimensions: with stand 518x369x160 mm, without stand 518x321x74 mm.
TV Weight: with stand: 2.68 kg, without stand: 2.08 kg.
Attention! The LC215DT5A panel of the FUSION FLTV-22L31B 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.
