Technical description and composition of the IZUMI TLE15H400B TV, type of panel and applicable modules. The composition of the modules.IZUMI LED
Model: TLE15H400B
Chassis / Version: LA.MV6.D2
Panel: LP156WH2 (TL) (R2)
T-CON: LP156WH2-TLQ1 P / N: 6870S-0703F
Power Supply (PSU): adapter DC 12V, 4A
MainBoard: LA.MV6.D2 0343
IC MainBoard: 25Q80BV, 24C32, YD1517P
Tuner: HFT-8F / 125CW
Technical Specifications TLE15H400B
IZUMI TLE15H400B
General repair guidelines for TV LCD LED
It is advisable to start the repair of the IZUMI TLE15H400B TV with a careful external examination of both internal and external elements. It often happens that visible damage to elements or connections helps determine the direction of the troubleshooting. If charred resistors, swollen electrolytic or cermet capacitors, ring cracks in the soldered terminals of transformers or heating elements are detected, 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.
Sometimes the IZUMI TLE15H400B 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 common power adapter adapter DC 12V, 4A. If it is working properly, you need to check the processor batteries on the SSB (Main Board). In the general case, first of all, it is necessary to check the electrolytic capacitors of the secondary rectifier filters and the fuse at the input of the network. If it is broken, then you should check for breakdown of the PN junctions of the rectifier bridge diodes and the key transistor of the converter, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Possible options.
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 PWM controller chip are subject to verification, which it is desirable to verify by replacement.
If the IZUMI TLE15H400B TV does not have an image, but there is sound, a malfunction in the LED backlight circuits of the LP156WH2 panel is likely. It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the PSU (power supply) for an overstated ESR.
Often in the absence of backlighting, disassembling the panel is required. It is necessary to check the serviceability of the transitions of the LEDs, as well as the reliability of the contact connections in the rulers and connectors.
It is impossible to check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source.
The LA.MV6.D2 0343 motherboard must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up continuously. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary.
In some cases, they require checking or replacing (if necessary) the elements of the MB board (SSB) - 25Q80BV, 24C32, YD1517P. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
Before replacing the HFT-8F / 125CW tuner, if there is no tuning to the channels, you must first check the power supply voltage at its terminals, including the power supply of varicaps (30-33V).
Attention! For users and owners of TLE15H400B TVs who do not have the appropriate qualifications, knowledge and experience, we strongly recommend against attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
FIRMWARE FOR SPI FLASH -----------> IZUMI TLE15H400B, Main: LA.MV6.D2 0343, Panel: LP156WH2
The appearance of the MainBoard HK-T.SP7050V29 is shown in the figure below:HK-T.SP7050V29
HK-T.SP7050V29 can be used in TVs:
IZUMI TLE15H310B (Panel CLAA156WB11A), IZUMI TLE19H300B (Panel CLAA185WA 04).
Main features of the IZUMI TLE15H400B device:
Installed matrix (LED-panel) LP156WH2 (TL) (R2).
The matrix control uses the Timing Controller (T-CON) LP156WH2-TLQ1.
To power all the internal components of the IZUMI TLE15H400B TV, an external adapter type DC 12V, 4A is used.
MainBoard - the main board (motherboard) is a LA.MV6.D2 module, using 25Q80BV, 24C32, YD1517P and others.
The HFT-8F / 125CW tuner provides television reception and channel tuning.
Information from an alternative source:
IZUMI TLE15H400B
Panel Type (Matrix): LP156WH2 (TL) (R2),
Motherboard: LA.MV6.D2 0343, Processor: under the radiator, Flash: 25Q80BV, Eprom: 24C32, UZH: YD1517P, Tuner: HFT-8F / 125CW,
T-con: LP156WH2-TLQ1 P / N: 6870S-0703F, POWER: DC 12V, 4A
Additional technical information about the panel:
Brand: LG Display
Model: LP156WH2-TLR2 61 Compatible model
Type: a-Si TFT-LCD, Panel
Diagonal size: 15.6 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 344.232x193.536 mm
Shape Style: Wedge (PCBA Bent, Depth? 5.2mm)
Surface: Antiglare
Brightness: 200 cd / m²
Contrast Ratio: 300: 1 (Min.)
Display Colors: 262K (6-bit)
Response Time: 16 (Tr + Td)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (1 ch, 6-bit), 40 pins
Voltage: 3.3V