Technical description and composition of the FUSION FLTV-19L31B TV, type of panel and applicable modules. The composition of the modules.FUSION LED
Model: FLTV-19L31B
Chassis / Version: V1M04
Panel: HK185WLEDM-HH75H
LED driver (backlight): integrated into PSU
PWM LED driver: OB3362RP
MOSFET LED driver: ME15N10-G
Power Supply (PSU): HKL-190401
PWM Power: OB2273
MOSFET Power: JCS4N65F
MainBoard: T.VST59.11
IC MainBoard: CPU: TSUMV59XE-Z1, FLASH: 25Q32
Tuner: CDT-3NPI1-10
Technical Specifications FLTV-19L31B
FUSION FLTV-19L31B
General repair guidelines for TV LCD LED
Repair of the FUSION FLTV-19L31B TV should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. Based on visible external changes in the state of the components, it is usually possible to determine the further direction of troubleshooting and localization of the defect before making the necessary measurements. Elements with visible damage, for example, capacitors swelled up after boiling the electrolyte, charred resistors in certain nodes of the circuit, as well as ring cracks in solders will help the master to guess the causes and possible consequences of the malfunction.
Sometimes the FUSION FLTV-19L31B 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 HKL-190401 common power module. If it is working properly, it is necessary to check the processor batteries on the SSB (Main Board). When diagnosing and repairing the power supply, first of all, replace the swollen filter capacitors of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module — rectifier diodes and transistors in the primary circuit.
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-19L31B TV has lost its 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 backlight LEDs of the HK185WLEDM-HH75H panel). 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.
It should be remembered that it is not possible to determine the break in the LED lines without disassembling the panels using a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required.
If the T.VST59.11 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.
If it is not possible to replace the MB (SSB) card, you need to check the health of its elements - CPU: TSUMV59XE-Z1, FLASH: 25Q32. Defective components should be replaced.
Attention to users! Independent repair of the FUSION FLTV-19L31B TV without the appropriate qualifications and experience can lead to its complete non-repairability!
FIRMWARE FOR SPI FLASH -----------> FUSION FLTV-19L31B V1M04, Main: T.VST59.11 , Panel: HK185WLEDM-HH75H
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.
To reduce the backlight current in LED drivers with an OB3362RP (TSOP16) controller, increase the total resistance of the resistors from pin 5 (ISET) to the chassis. The maximum current in each of the four channels (in milliamperes) for the Rset resistor (in kilo-ohms) is determined from the ratio 3000 * 1.2V / Rset.
Repair MainBoardThe appearance of MainBoard T.VST59.11 is shown in the figure below:
T.VST59.11
It is advisable to start the repair of the T.VST59.11 motherboard, made on the basis of the TSUMV59Xxx multifunction processor, by checking the operability of the linear voltage stabilizers or converters necessary to provide power to the processor nodes - 1.2V core power, DDR 1.8V memory and Stand-by 3.3V mode . If there is no image, but the display backlight is working properly, check the power supply voltage of the LCD panel 5V or 12V, depending on the type of panel used.
T.VST59.11 can be used on TVs:
SUPRA STV-LC19500WL (Panel HK185WLDEM-HH76H), FUSION FLTV-19L31B (Panel HK185WLEDM-HH75H), FUSION FLTV-22L31B (Panel LC215DT5A), SUPRA STV-LC24500FL (Panel 1080p Full HD 1920x1080), FUSION FLTV-24LF31B (Panel HK236WLEDM-BH56H).
The appearance of the power supply
Main features of the FUSION FLTV-19L31B device:
Installed matrix (LED-panel) HK185WLEDM-HH75H.
To power the backlight LEDs, a converter is used, combined with the power supply, controlled by the OB3362RP PWM controller. As power elements of the LED driver, keys of the type ME15N10-G are used.
The necessary supply voltages for all nodes of the FUSION FLTV-19L31B TV are generated by the HKL-190401 power supply module or its analogs using OB2273 microcircuits and power switches of the JCS4N65F type.
MainBoard - the main board (motherboard) is a T.VST59.11 module, using CPU chips: TSUMV59XE-Z1, FLASH: 25Q32 and others.
The tuner CDT-3NPI1-10 provides the reception of television programs and tuning to channels.
Information from an alternative source:
FUSION FLTV-19L31B V1M03
Panel Type (Matrix): VVH19H101G00
Motherboard:T.VST59.11, TSUMV59XE-Z1, GD25Q32, SGM330A, YD1517P, Tuner: CDT-3NPI1-10
T-con: CV185PW01С, NT71391, AAT11771, GT416 (24C16), PSU & Led driver: HKL-190401, OB2273, JCS4N65F, OB3362RP, ME15N10-G
FUSION FLTV-19L31B TV with HK185WLEDM-HH75H LCD, 19 "(48 cm) diagonal size of 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-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, 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 442x330x130 mm, without stand 442x282x57 mm.
TV mass: with stand: 2.6 kg, without stand: 2 kg.
Attention! The HK185WLEDM-HH75H panel of the FUSION FLTV-19L31B 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.
