Technical description and composition of the IZUMI TLE15H500M TV, type of panel and applicable modules. The composition of the modules.IZUMI LED
Model: TLE15H500M
Chassis / Version: T.VST26.7A
Panel: 15 inch
MainBoard: T.VST26.7A
IC MainBoard: Spi Flash: 25Q80, Eeprom: 24C32, Audio: YD1517P
Tuner: ET-6T1E-EF108WR3
Technical Specifications TLE15H500M
IZUMI TLE15H500M
General repair guidelines for TV LCD LED
Repair of electronic devices, including the IZUMI TLE15H500M TV, it is advisable to start with an external examination of its external and internal elements. Sometimes, based on visible changes in the components of the device, it is possible to draw some conclusions and determine the direction of further troubleshooting even before the necessary measurements are taken. If charred resistors, swollen electrolytic or cermet capacitors, ring cracks in the solders of the terminals of transformers or heating elements are found, it is advisable to establish the causes and consequences of the malfunction that has arisen, as well as to check the connected elements and assemblies.
In the absence of any signs of operability, when the IZUMI TLE15H500M does not turn on and does not signal anything with the control lights on the panel, there is a possibility of a malfunction of the TV power module. With the same manifestations, the power regulator of the control processor on the motherboard may be faulty. In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If there is no image when IZUMI TLE15H500M is turned on, or it appears for a second and disappears, but there is sound, most likely there is a malfunction in the circuit of the panel backlight LEDs or in their power converter. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the general power supply unit.
To check the health of the LEDs, as well as contact connections in the ruler circuit, it is necessary to disassemble the panel.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
If the motherboard is faulty T.VST26.7A, first of all it is necessary to check all the linear stabilizers or power converters of its chips, as well as, 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 Spi Flash elements: 25Q80, Eeprom: 24C32, Audio: YD1517P 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.
If the TV works normally from external devices, but does not tune into television channels, the tuner ET-6T1E-EF108WR3 may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals, as well as the power supply of varicaps (30-33V).
Attention to users! Self-repair of the IZUMI TLE15H500M TV without the appropriate qualifications and experience can lead to its complete non-repairability!
FIRMWARE FOR SPI FLASH -----------> IZUMI TLE15H500M, Main: T.VST26.7A
In cases where a failure has occurred in Winbond's SPI FLASH software, we recommend replacing the chip with a new one. Often, faulty Winbond microcircuits can temporarily restore their functionality after temperature exposure, for example, when a soldering station is heated by a hairdryer. Sometimes this is enough to read the regular contents of the software.
Repair MainBoardThe appearance of MainBoard T.VST26.7A is shown in the figure below:
T.VST26.7A
T.VST26.7A can be used on TVs:
AKAI LEA-19S02P (Panel MT185GW01 V.1), Akai LTA-24S01P (Panel M236H1 L01 Rev.C1), AKAI LTA-22S01P (Panel CLAA216WA01), AKAI LTA-19S01P (Panel M185B1-L02), HYUNDAI H-LED22V1 (Panel CLAA215FA04), HYUNDAI H-LED19V3 (Panel MT185GW01 V.1), IZUMI TLE15H500M (Panel 15 ").
Main features of the IZUMI TLE15H500M device:
Installed matrix (LED-panel) 15 inches.
The required supply voltage for all nodes of the TV IZUMI TLE15H500M provides a switching power supply.
MainBoard - the main board (motherboard) is a T.VST26.7A module, using Spi Flash chips: 25Q80, Eeprom: 24C32, Audio: YD1517P and others.
The ET-6T1E-EF108WR3 tuner provides TV reception and channel tuning.