Technical description and composition of the FUSION FLTV-32W4 TV, panel type and applicable modules. The composition of the modules.Fusion
Model: FLTV-32W4
Chassis / Version: VJ10
Panel: DTW0315CK01-B
Inverter (backlight): integrated into PSU
PWM Inverter: SG3525, AS358A, F2222
Power Supply (PSU): MIP320F
PWM Power: LD7535 (PWM 6 pin St-By + 5V), L6562D (PFC)
MOSFET Power: STD5N52U, F2HNK60Z
MainBoard: T.MS6M48.1C 10343
IC MainBoard: MST6M48RHS-LF MP1482DN
Tuner: ET-6T1E-LF-108W-A
Technical Specifications FLTV-32W4
FUSION FLTV-32W4
General recommendations for repairing TV LCD
Repair of electronic equipment usually begins with its external inspection and diagnosis of the malfunction. In this case, you should inspect all the internal elements of the VJ10 chassis, as well as the external chassis. Visible damage to the elements can sometimes indicate the direction of the search for the defect even before the necessary measurements. In most cases, the repairman can guess the causes of the defect and possible consequences from the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of the element leads, swollen rectifier filter capacitors, charred resistors and other circuit elements.
Sometimes the FUSION FLTV-32W4 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 the failure of the MIP320F 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.
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 strapping of the F9222 PWM controller chip are subject to verification, which it is desirable to verify by replacement.
In cases where the FUSION FLTV-32W4 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 inverter (converter for powering the backlight). When you turn on the TV, the image may appear briefly and immediately disappear. It must be borne in mind that with such manifestations, the lamps themselves also fail, the malfunction of which can be detected by replacement, by connecting to the connectors for diagnostics that are known to be serviceable and suitable in power. When diagnosing a malfunction of the inverter with the protection off, special precautions must be taken, because there is a risk of failure of the power elements of the inverter. After the diagnosis, it is imperative to restore the protection circuits for the inverter to operate normally.
Repair of the T.MS6M48.1C 1034 motherboard 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. If it is not possible to replace the MB (SSB) card, you need to check the health of its elements - MST6M48RHS-LF MP1482DN. Defective components should be replaced.
Attention to users! Self-repair of a FUSION FLTV-32W4 TV without the appropriate qualifications and experience can lead to its complete non-repairability!
Repair MainBoardThe appearance of MainBoard T.MS6M48.1C is shown in the figure below:
T.MS6M48.1C
The motherboard T.MS6M48.1C is made using the microprocessor MST6M48RHS, which includes a graphic controller-scaler (scaler). To organize the processor, an external RAM NT5TU32M16CG DDR2 SDRAM in BGA version and SPI FLASH 25Q32 (25L32) (4Mb) are used as read-only memory (ROM). To provide power to the processor core, a DC / DC converter with an output voltage of 1.2V is used. Other nodes of the processor are powered by linear voltage stabilizers 2.5V, 3.3V. 1.8V voltage is used to power the DDR RAM, 3.3V is needed for the SPI FLASH ROM.
It is advisable to start the MainBoard repair by checking the supply voltage in Stand-by mode 3.3V, it can be measured on pin 8 of the SPI chip. In operating mode, check the operation of all linear stabilizers and the DC / DC converter. If there is a backlight and there is no image, you need to check the power of the 5V or 12V panel (depending on the type of LCD panel), which should be present directly on the LVDS connector.
If the indicator signals Stand-by mode and does not respond to the remote control and control buttons, it is recommended to update the SPI Flash software. Taking into account the glitchiness of Winbond SPI chips, it is advisable to replace them with new ones in case of software failures.T.MS6M48.1C can be used in TVs:
FUSION FLTV-32W4 (Panel DTW0315CK01-B), SUPRA STV-LC2615W (Panel TC260B301), SUPRA STV-LC2615F (Panel TC260F103 HD), SUPRA STV-LC3215FD (Panel V315H1-L02 Rev C1).
PSU Advanced
The MIP320F power module is installed in the FLTV-32W4 TV using the PFC (Power Factor Correction) scheme acting as an active filter to eliminate the higher harmonic components of the current consumption. The step-up converter based on the L6562D PWM controller does not allow the input rectifier filter's electrolytic capacitor to be connected to the network directly through open diodes, when the value of the charge current determines its reactance (about 15-30 ohms at a frequency of 50 Hz). As a result of the conversion, the charging current of the capacitor will be determined in such a way that the envelope of the high-frequency pulses of the input current will repeat the phase and shape of the sine wave of the input voltage. The health check of the PFC unit is carried out by measuring the DC voltage on the capacitor of the rectifier network. In operating mode, it should be around 380V, in standby approximately 300V.
Main features of the FUSION FLTV-32W4 device:
Installed matrix (LCD panel) DTW0315CK01-B.
To power the backlight, a converter is used, combined with a power supply, controlled by a PWM controller SG3525, AS358A, F2222.
The necessary supply voltages for all nodes of the FUSION FLTV-32W4 TV are generated by the MIP320F power module or its analogs using LD7535 (PWM 6 pin St-By + 5V), L6562D (PFC) microcircuits and power switches of the STD5N52U, F2HNK60Z type.
MainBoard - the main board (motherboard) is a module T.MS6M48.1C, using chips MST6M48RHS-LF MP1482DN and others.
The ET-6T1E-LF-108W-A tuner provides TV reception and channel tuning.
FUSION FLTV-32W4 TV with DTW0315CK01-B LCD, 32 "(81 cm) diagonal size in 16: 9 format. 400 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. Contrast as the ratio of maximum brightness to the minimum is 4500: 1. Dynamic contrast ratio of 10000: 1 is provided by special control of the backlight depending on the brightness of the plot in the plot.You can view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready). Input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, WMA, MPEG4, Xvid, DivX, JPEG .
The power of the sound system 16 W (2x8 W) provide two speakers. It uses a 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 x3, S-Video, component, SCART x2, RGB, VGA, HDMI x4, 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 180 watts.
Overall dimensions: 796x580x238 mm.
Mass of the TV: 11.1 kg.
Attention! The DTW0315CK01-B LCD panel of the FUSION FLTV-32W4 LCD TV is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!