Technical description and composition of the AKAI LES-32V01M TV, panel type and applicable modules. The composition of the modules.AKAI LED
Model: LES-32V01M
Chassis / Version: TP.MS608.P83
Panel: T320XVN02.9
T-CON: T320XVN02.9 CTRL BD
LED driver (backlight): integrated into MainBoard; 84V 280mA
PWM LED driver: PWM DIP-8
Power Supply (PSU): integrated into MainBoard
PWM Power: PWM SOT23-6
MainBoard: TP.MS608.P83
IC MainBoard: CPU: MST038B, Spi Flash: 25Q16
Tuner: NoName
Technical Specifications LES-32V01M
AKAI LES-32V01M
General repair guidelines for TV LCD LED
Possible malfunctions
- AKAI LES-32V01M 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.
The malfunction in such cases, first of all, should be sought in the power elements of a switching power supply (IIP) - a network voltage converter (AC / DC), which in this TV model is combined with the MainBoard TP.MS608.P83 main board. It is necessary to measure the output voltages in its secondary circuits, and if they are completely absent, it is necessary to check the serviceability of power switches and rectifier diodes for possible breakdown (short circuit).
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the mains fuse and, less often, the current sensor at the source of the key are most often cut off.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM SOT23-6 PWM controllers, in the absence of visible damage or obvious short-circuit between the terminals, are checked by replacing with new ones, or obviously working.
- There is no image, there is sound, it responds to the remote control. Or the image may appear for a second when turned on and immediately disappears.
A malfunction is usually most likely in these cases at the backlight nodes of the display matrix. 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 strips, to open all the transitions of the LEDs, several tens of volts or more are needed, it is best to use a current source for such purposes. The breakage of several PN junctions connected in series cannot be detected with a multimeter or tester. In such cases, it is necessary to open the panel and check each LED. If your multimeter cannot open the LED transitions in forward bias, you can sometimes detect the presence of a PN junction of the protective zener diode by connecting the probes in the opposite direction. If the zener diode is broken or broken in short-circuit, then the LED is faulty and needs to be replaced.
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the TP.MS608.P83 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). If it is not possible to replace the MB board (SSB), you need to check the health of its elements - CPU: MST038B, Spi Flash: 25Q16. Defective components should be replaced.
Before changing the NoName tuner, if it is not possible to tune to television channels, make sure that there are supply voltages that must be measured at the corresponding tuner pins and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
It should be remembered! Attempts to independently repair the AKAI LES-32V01M TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
FIRMWARE FOR SPI FLASH -----------> AKAI LES-32V01M, Main: TP.MS608.P83, Panel: T320XVN02.9
The appearance of MainBoard TP.MS608.P83 is shown in the figure below:TP.MS608.P83
Key features of the AKAI LES-32V01M device:
Installed matrix (LED-panel) T320XVN02.9.
The matrix control uses the Timing Controller (T-CON) T320XVN02.9.
To power the backlight LEDs, a converter is used, combined with the main board TP.MS608.P83, controlled by the PWM DIP-8 PWM controller.
The power module is combined with the MainBoard and is designed according to the flyback AC / DC voltage converter using PWM SOT23-6 microcircuits.
MainBoard - the main board (motherboard) is a TP.MS608.P83 module, using CPU chips: MST038B, Spi Flash: 25Q16 and others.
The NoName tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T320XVN02.9 CELL
Type: a-Si TFT-LCD, CELL
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 2%), Hard coating (3H)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 6.8% (with Polarizer)
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
Brand: AKAI, Model: LES-32V01M.
Briefly from the TV: LCD, LED backlight, 32 ", 1366x768, 720p HD, sound: 18W, HDMI: 3, Internet access, Wi-Fi, Smart TV.
The composition uses MainBoard TP.MS608.P83 and an LCD panel (matrix) T320XVN02.9. The power supply is combined with the MainBoard.
AKAI LES-32V01M TV with a T320XVN02.9 LCD display, 32 "(81 cm) diagonal size in 16: 9 format. The required screen brightness of 300 cd / m² is provided by LED backlight LED. The ratio of maximum brightness to minimum (contrast) is 3000 : 1. This model uses Edge LED side illumination, and you can view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready).
LES-32V01M TV is equipped with SMART software and the ability to work on the Internet. Connecting to a network can be done via Wi-Fi. The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, WMA, DivX, MKV, JPEG.
The power of the speaker system of sound 18 W (2x9 W) provide two speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, VGA, HDMI x3, USB x4, Ethernet (RJ-45), Wi-Fi. 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.
The power consumed by the TV working in the network mode is 60 watts.
Overall dimensions: With stand 735x502x180 mm, Without stand 735x448x68 mm.
The mass of the TV: 6.7 kg.
Attention! The T320XVN02.9 panel of the AKAI LES-32V01M 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.