Technical description and composition of the FUSION FLTV-32H18 TV, panel type and applicable modules. The composition of the modules.Fusion
Model: FLTV-32H18
Chassis / Version: V1L06
Panel: T315CK07-BW2
Inverter (backlight): integrated into PSU
Power Supply (PSU): LK-PI320402E
PWM Power: OB2273 (PWM SOT23-6)
MainBoard: CV182H-F
IC MainBoard: SPI Flash: Winbond 25Q32BVS, HDMI: CAT6354CQ, Audio: TPA3110LD2
Tuner: CDT-3SP5I2-37
Control: RC7B
Appearance
FUSION FLTV-32H18
General recommendations for repairing TV LCD
FUSION diagnostics and repairs with the CV182H-F chassis, as well as other electronic devices, are recommended to begin with an external examination of the external and internal elements. Specific external damage to some elements can sometimes indicate further actions to determine the malfunction of the TV and localize the defect before the necessary measurements are taken. If ring cracks are detected in the soldering of the terminals of the elements or dangling connecting tracks, swollen capacitors or charred resistors - all this can be characteristic signs of the causes or consequences of an already known typical malfunction.
Sometimes the FUSION FLTV-32H18 TV simply does not turn on. No control lights on the front panel are lit or blinking, the TV does not respond to the remote control and does not make any sounds or any signs of life when turned on. The most likely cause of the malfunction is a failure of the common power module. If it is working properly, you need to check the processor batteries on the SSB (Main Board). 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 looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is verified by replacing it with a known good one.
If the FUSION FLTV-32H18 does not have an image, but there is sound and the TV is controlled by the remote control, a malfunction in the display backlight nodes is likely. The lamps or the power converter - inverter may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to verify the operability of the electrolytic capacitors of the rectifier filter supplying the inverter, and check the LCD lamps by connecting external and obviously serviceable for diagnosis to the connectors. All necessary precautions must be observed when disabling the inverter protection during diagnostics and not leaving it disconnected after the repair is completed.
If the CV182H-F motherboard is faulty, first of all it is necessary to check all the linear stabilizers or power converters of its chips, and also, if necessary, update the software. Sometimes you can check the health of MB only by replacement. Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing elements SPI Flash: Winbond 25Q32BVS, HDMI: CAT6354CQ, Audio: TPA3110LD2 requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can be diagnosed by warming up.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair only to professionals with sufficient experience in the field of electronic equipment repair.
FIRMWARE FOR SPI FLASH -----------> FUSION FLTV-32H18, Main: CV182H-F, Panel: T315CK07-BW2
In case of failures in the software of SPI FLASH microcircuits made by Winbond, they can for some time restore their working capacity after temperature exposure - heating by a hairdryer of a soldering station or even a lighter. Usually this is enough to read the regular contents of the software. In such cases, the chip must be replaced with a new one.
Repair MainBoardThe appearance of the MainBoard CV182H-F is shown in the figure below:
CV182H-F
The CV182H-F motherboard uses the MST6M182VG processor, combined with a scaler and installed using BGA technology.
It is advisable to begin repairing this type of MainBoard by checking the voltage converters and linear stabilizers necessary to provide power to the processor nodes: 1.2V, 2.5V, 3.3V. Check the power supply of the 5V or 12V LCD panel, depending on the type of panel used, it is advisable directly on the LVDS connector. If, in the presence of the necessary supply voltage, the TV does not exit Stand-by mode, does not respond to the remote control and control buttons, the SPI Flash software should be updated.
CV182H-F can be used in TVs:FUSION FLTV-32H18 (Panel T315CK07-BW2), FUSION FLTV-3218B (Panel T315CK06-PW1), SUPRA STV-LC3215W STV-LC3215WD (Panel LTA320AP29), SUPRA STV-LC4215DF (Panel T420HW05 V.0 ).
The appearance of the power supply
Main features of the FUSION FLTV-32H18 device:
Installed matrix (LCD panel) T315CK07-BW2.
To power the backlight, a converter is used, combined with a power supply.
The necessary supply voltages for all nodes of the FUSION FLTV-32H18 TV are generated by the LK-PI320402E power module or its analogs using OB2273 microcircuits (PWM SOT23-6).
MainBoard - the main board (motherboard) is a CV182H-F module using SPI Flash chips: Winbond 25Q32BVS, HDMI: CAT6354CQ, Audio: TPA3110LD2 and others.
The tuner CDT-3SP5I2-37 provides the reception of television programs and tuning to channels.