Technical description and composition of the IZUMI TLE32F400B TV, type of panel and applicable modules. The composition of the modules.IZUMI LED
Model: TLE32F400B
Chassis / Version: T.MS6M48.6B
Panel: V315H3-LE2
LED driver (backlight): L315H3-2EA-A002B
Power Supply (PSU): MP118T
MainBoard: T.MS6M48.6B 10463
IC MainBoard: CPU: MST6M48, SPI Flash: 25Q32BVSIG
Tuner: ET-6T1E-LF-108W-A (TDQ-ATF27WT-F)
Technical Specifications TLE32F400B
IZUMI TLE32F400B
General repair guidelines for TV LCD LED
Possible manifestations of defects
- IZUMI TLE32F400B does not turn on, the indicators on the front panel do not light or flash. The TV does not respond to the control buttons and the remote control.
Typically, with such manifestations, the defect is caused by faulty elements in the MP118T main power module. Then it is necessary to measure its output voltages and, in case of their complete or partial absence, it is necessary to check the serviceability of power switches and rectifier diodes of the converters for a possible short circuit.
In case of breakdowns of semiconductors in the secondary circuits, the converter can usually work abnormally in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse often breaks.
Breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback circuits (OOS) of stabilization. PWM controllers (PWM), if they do not have visible damage to the chassis and open short circuit between the terminals, are usually checked by replacement.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
In such cases, the most likely malfunction of the LED backlight elements. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
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.
- The TV does not turn on, the indicator indicates standby or operating mode, or blinks.
Repair or diagnostics of the T.MS6M48.6B motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). In cases of attempts to repair the MB board (SSB), it is necessary to check the health of its elements - CPU: MST6M48, SPI Flash: 25Q32BVSIG which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
Before changing the tuner ET-6T1E-LF-108W-A (TDQ-ATF27WT-F), if it is not possible to tune to television channels, make sure that there are supply voltages that must be measured at the corresponding terminals of the tuner and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
Owners and users of the IZUMI TLE32F400B TV should remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences, which can lead to complete non-repairability of the device!
FIRMWARE FOR SPI FLASH -----------> IZUMI TLE32F400B, Main: T.MS6M48.6B 10463, Panel: V315H3-LE2
The appearance of MainBoard T.MS6M48.6B is shown in the figure below:T.MS6M48.6B
The appearance of the power supply
Main features of the IZUMI TLE32F400B device:
Installed matrix (LED-panel) V315H3-LE2.
The LED driver L315H3-2EA-A002B is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the IZUMI TLE32F400B TV is carried out by the MP118T power module, or its analogues.
MainBoard - the main board (motherboard) is a T.MS6M48.6B module, using CPU chips: MST6M48, SPI Flash: 25Q32BVSIG and others.
The tuner ET-6T1E-LF-108W-A (TDQ-ATF27WT-F) provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V315H3-LE2
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: MVA, Normally Black, Transmissive
Active Area: 698.4x392.85 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 5000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V