Technical description and composition of the FUSION FLTV-39LF28B TV, panel type and applicable modules. The composition of the modules.FUSION LED
Model: FLTV-39LF28B
Chassis / Version: V1M01
Panel: V390HJ1-P02
LED driver (backlight): integrated into MainBoard
PWM LED driver: OB3350CP
Power Supply (PSU): integrated into MainBoard
PWM Power: LD7536
MOSFET Power: MDF7N60B
MainBoard: TP.VST59.P83 B-65W33
IC MainBoard: CPU: TSUMV59XU A7MJ692B, Spi Flash: 25Q32
Tuner: CDT-3NP5I1-10
Technical Specifications FLTV-39LF28B
FUSION FLTV-39LF28B
General repair guidelines for TV LCD LED
Repair of the FUSION FLTV-39LF28B TV should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. It often happens that visible damage to elements or connections helps determine the direction of the troubleshooting. In most cases, the repairman can guess the causes of the defect and possible consequences by the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of element outputs, swollen rectifier filter capacitors, charred resistors and other circuit elements.
If the FUSION FLTV-39LF28B does not turn on, no control lights on the front panel light up or blink, therefore, there is a very high probability of a malfunction of the LD7536 MDF7N60B power supply module. In some cases, only the processor power regulator may be faulty. 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.
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 key breakdown 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 PWM controller chip are subject to verification, which it is desirable to verify by replacement.
If the FUSION FLTV-39LF28B does not have an image, but there is sound and the TV is controlled by the remote control, a malfunction in the backlight circuits of the V390HJ1-P02 panel is likely. The LEDs or power converter - LED driver 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 LED driver, and check the LEDs, connecting obviously known good diagnostics.
To check the health of the LEDs and contact connections in their power circuit, the panel must be disassembled.
When trying to identify a break in the LED lines, it should be borne in mind that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.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) - Cpu: TSUMV59XU A7MJ692B, Spi Flash: 25Q32. 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-39LF28B TV without the appropriate qualifications and experience can lead to its complete non-repairability!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Service manual and sсhematic diagram TP.VST59.P83-65W18
FIRMWARE FOR SPI FLASH -----------> FUSION FLTV-39LF28B V1M01, Main: TP.VST59.P83B-65W33, Panel: V390HJ1-P02
Repair MainBoardIn 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.
The appearance of MainBoard TP.VST59.P83 and voltage measurements at the test points are shown in the figure below:
TP.VST59.P83
The TP.VST59.P83 motherboard is combined with a power module and is an independent device made on the basis of the TSUMV59Xxx multifunction processor. Repair of such a board must begin by checking the power batteries, as well as the operability of the voltage converters and linear stabilizers necessary to provide power to certain processor nodes, in particular: + 1.2V core power, built-in DDR + 1.8V memory, and Stand- by 3.3V. The voltage of the LCD panel 5V or 12V, depending on the type of panel used, must be checked directly on the LVDS connector.
TP.VST59.P83 can be used on TVs:
AKAI LEA-28A08W (Panel ST2751A01-1), ERISSON 39LEN52 (Panel TLV3931-02), ERISSON 32LEN52 (Panel TLV3231-01), FUSION FLTV-32L28B (Panel TH315B051-MD1), FUSION FLTV-39LF28B (Panel V390HJ1-P02), FUSION FLTV-32L41B (Panel DBMS315LK09-C), FUSION FLTV-40LF28B (Panel DBMS400LK01-A), HYUNDAI H-LED32V18 (Panel CX315DLEDM T320XVN02.A ), MYSTERY MTV-4023LW (Panel CX390DLEDM / T390HVN04.0), ROLSEN RL-39D1305F (Panel V390HJ1-P02 Rev. C1), RUBIN RB-32D3U (Panel T320XVN01.0), RUBIN RB-39D3F (Panel CX390DLEDM), SHIVAKI STV-40LED5 (Panel V390HJ1-P01 Rev C1), SUPRA STV-LC3225AWL (Panel TH315B051-MD2), SUPRA STV-LC32T810WL (Panel TC315F3E5-A), SUPRA STV-LC32880WL (Panel HE315GH-E77GM\PW1 ), SUPRA STV-LC2825WL (Panel SM275TC30), SUPRA STV-LC32820WL (Panel TC315FJE1-MD4), SUPRA STV-LC32810WL (Panel TC315F3E5-A), TELEFUNKEN TF-LED32S7 (Panel ST3151A05-5 CX315DLEDM).
Main features of the FUSION FLTV-39LF28B device:
Installed matrix (LED-panel) V390HJ1-P02.
To power the backlight LEDs, a converter is used, combined with the main board TP.VST59.P83, controlled by the OB3350CP PWM controller.
The power module is combined with the MainBoard and is made according to the scheme of a flyback AC / DC voltage converter using LD7536 microcircuits and power switches of the MDF7N60B type.
MainBoard - the main board (motherboard) is a TP.VST59.P83 module, using Cpu chips: TSUMV59XU A7MJ692B, Spi Flash: 25Q32 and others.
The tuner CDT-3NP5I1-10 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V390HJ1-P02
Type: a-Si TFT-LCD, CELL
Diagonal size: 39 inch
Resolution: 1920x1080, FHD
Display Mode: MVA, Normally Black, Transmissive
Active Area: 853.92x480.33 mm
Surface: Antiglare (Haze 3.5%), Hard coating (3H)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 5.8% (with Polarizer)
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit)
Response Time: 8.5 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
FUSION FLTV-39LF28B TV with V390HJ1-P02 LCD, 39 "(99 cm) diagonal size in 16: 9 format. The required screen brightness of 350 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 80,000: 1 is achieved by special control of the LEDs The LED-panel of this TV is equipped with end LED backlighting - Edge LED. 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, MKV, JPEG. Stereo sound is realized by two built-in speakers. Used audio processing system NICAM STEREO.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, SCART, VGA, HDMI, 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, 1360x768.
Attention! The V390HJ1-P02 panel of the FUSION FLTV-39LF28B 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.