Technical description and composition of the AKAI LEA-24A08G TV, panel type and applicable modules. The composition of the modules.AKAI LED
Model: LEA-24A08G
Chassis / Version: AS-TSUMV59XU-LE1
Panel: V236BJ1-L01
Power Supply (PSU): Adapter 12V
MainBoard: AS-TSUMV59XU-LE1
IC MainBoard: CPU: TSUMV59XU-Z1, SPI Flash: W25Q32
Technical Specifications LEA-24A08G
AKAI LEA-24A08G
General repair guidelines for TV LCD LED
Possible malfunctions
- The AKAI LEA-24A08G TV does not turn on at all. There is no reaction to the remote control and control buttons from the front panel. Indicator lights do not light or flash.
With such manifestations, the Adapter power module usually fails.
The external adapter 12V power supply is not always subject to repair, especially since the owner can purchase it independently. But, in some cases, it makes sense to open it and eliminate the simple typical defects inherent in converters in pulsed sources. It is necessary to measure its output voltages and, if they are absent, to check for short-circuit probabilities in the converters, power switches and rectifier diodes.
In case of any breakdown of semiconductors in the secondary circuits, the converter can usually work normally in emergency short circuit mode. There are no output voltages. And with a short circuit in the power elements of the primary circuit, as a rule, the mains fuse breaks and less often the current sensor at the source of the key.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM microcircuits are usually checked by replacement with new ones, or obviously working.
- There is no image, there is sound, it responds to the remote control, the channels are switched. In some cases, the image appears when you turn on and immediately disappears.
In most of these cases, a malfunction is detected in the nodes and backlight elements of the LED panel. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To check the health in the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can check each LED individually with a simple Chinese multimeter (powered by 9 volts) in the P-N-junction test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. A zener diode PN junction indirectly indicates a LED-a
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the AS-TSUMV59XU-LE1 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 some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - CPU: TSUMV59XU-Z1, SPI Flash: W25Q32 with new or obviously working ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Entrust repair to professionals with sufficient experience in the field of repair of electronic equipment.
Key Features of the AKAI LEA-24A08G:
Installed matrix (LED panel) V236BJ1-L01.
To power all internal components of the AKAI LEA-24A08G TV, an external adapter 12V type is used.
MainBoard - the main board (motherboard) is an AS-TSUMV59XU-LE1 module, using CPU chips: TSUMV59XU-Z1, SPI Flash: W25Q32 and others.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V236BJ1-L01
Type: a-Si TFT-LCD, Panel
Diagonal size: 23.6 inch
Resolution: 1366x768, WXGA
Display Mode: MVA, Normally Black, Transmissive
Active Area: 521.471x293.184 mm
Surface: Antiglare (Haze 3.5%), Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8.5 (G to G)
Frequency: 60Hz
Lamp Type: 2 pcs CCFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
Brand: AKAI, Model: LEA-24A08G.
Briefly from the TV: LCD, LED backlight, 24 ", 1366x768, 720p HD, sound: 6 watts.
The composition uses MainBoard AS-TSUMV59XU-LE1 and LCD-panel V236BJ1-L01. Power supply unit external Adapter 12V.
There is a version of LEA-24A08G: MainBoard TP.VST59.P67 and LCD-panel PA236MEH-M3LZW1 (V236BJ1-XC01).
AKAI LEA-24A08G TV with V236BJ1-L01 LCD display, 24 "(61 cm) diagonal size in 16: 9 format. This model uses side LED backlight LED Edge. You can view images in high quality HD at a resolution of 1366x768 pixels in standard graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog 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, MPEG4, DivX, MKV, JPEG.
The power of the sound system 6 W (2x3 W) provide two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV x2, audio x3, component, VGA, HDMI, USB. 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 45 watts.
Overall dimensions: With stand 540x395x165 mm, Without stand 540x344x50 mm.
Briefly from the TV: LCD, LED backlight, 24 ", 1366x768, 720p HD, sound: 6 watts.
The composition uses MainBoard AS-TSUMV59XU-LE1 and LCD-panel V236BJ1-L01. Power supply unit external Adapter 12V.
There is a version of LEA-24A08G: MainBoard TP.VST59.P67 and LCD-panel PA236MEH-M3LZW1 (V236BJ1-XC01).
AKAI LEA-24A08G TV with V236BJ1-L01 LCD display, 24 "(61 cm) diagonal size in 16: 9 format. This model uses side LED backlight LED Edge. You can view images in high quality HD at a resolution of 1366x768 pixels in standard graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog 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, MPEG4, DivX, MKV, JPEG.
The power of the sound system 6 W (2x3 W) provide two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV x2, audio x3, component, VGA, HDMI, USB. 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 45 watts.
Overall dimensions: With stand 540x395x165 mm, Without stand 540x344x50 mm.
Attention! The V236BJ1-L01 panel of the AKAI LEA-24A08G 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.
