Technical description and composition of the IZUMI TL32H601B TV, type of panel and applicable modules. The composition of the modules.Izumi
Model: TL32H601B
Chassis / Version: MST6M181VS
Panel: LK315T3LA57
MainBoard: MST6M181VS-V4.0
IC MainBoard: CPU: MST6E181VS-LF-Z1, FLASH: EN25P32
Tuner: CDT-3BP512-36
Technical Specifications TL32H601B
IZUMI TL32H601B
General recommendations for repairing TV LCD
Repair of the IZUMI TV with the MST6M181VS chassis should begin with a careful external examination of all its components and modules. Often, by the external signs and nature of the damage to the elements, it becomes possible to draw some conclusions and determine a further algorithm for finding a defect before making the necessary measurements at control points. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a significant clue in the assumptions about the causes and consequences of the malfunction.
If the TV does not turn on, no indicators on its front panel are lit or blinking. Also, if the TV does not respond to the remote control and buttons, does not make any sounds or any signs of operability when turned on, there is a certain probability that the power module is defective and needs repair. Sometimes with similar manifestations a problem can only occur in the absence of processor power, which is typical for certain IZUMI models. When repairing the power supply, it is advisable to start the diagnostics by checking the mains fuse and the electrolytic capacitors of the filters of the converter secondary rectifiers. In the event of a fuse breaking, the reason should be sought in the power semiconductor elements of the pulse converter of the main power supply. First of all, it is necessary to check the diodes of the bridge of the rectifier of the mains voltage and the power switch (s) of the converter.
In most cases, key breakdowns in switching power supplies (SMPS) do not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective PWM chip from the manufacturer.
If, when you turn on the TV, the image appears and immediately disappears, or is initially absent when you turn on, but there is sound and other functions work, there is a high probability of a malfunction of the inverter (power converter for the backlight). In such cases, the lamps, the inverter and the common power module should be checked, in which the electrolytic capacitors of the rectifier filter feeding the inverter should be checked. It should be remembered that when the protection is turned off in order to diagnose a malfunction, there is always a risk of failure of the power elements of the inverter. After repair, it is necessary to restore all standard converter protection circuits.
Diagnostics and repair of the MST6M181VS-V4.0 motherboard is carried out by checking the performance of the stabilizers or power converters of the module chips. In some cases, a software update is required. In cases of attempts to repair the MB board (SSB), it is necessary to check the health of its elements - CPU: MST6E181VS-LF-Z1, FLASH: EN25P32 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).
Once again, remind users! Attempts to independently repair the IZUMI TL32H601B TV without the appropriate qualifications and experience can lead to its complete non-repairability!
FIRMWARE FOR SPI FLASH -----------> IZUMI TL32H601B, Main: MST6M181VS-V4.0, Panel: LK315T3LA57
The appearance of the MainBoard MST6M181VS-V4.0 is shown in the figure below:MST6M181VS-V4.0
Main features of the IZUMI TL32H601B device:
Installed matrix (LCD panel) LK315T3LA57.
The required supply voltage for all nodes of the TV IZUMI TL32H601B provides a switching power supply.
MainBoard - the main board (motherboard) is an MST6M181VS-V4.0 module, using CPU chips: MST6E181VS-LF-Z1, FLASH: EN25P32 and others.
The tuner CDT-3BP512-36 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: SHARP
Model: LK315T3LA57
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: ASV, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare, Hard coating (2H)
Brightness: 500 cd / m²
Contrast Ratio: 2500: 1
Display Colors: 16.7M (8-bit)
Response Time: 7 (G to G)
Lamp Type: 10 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V