Technical description and composition of the AKIRA 32LED01T2M TV, type of panel and applicable modules. The composition of the modules.AKIRA LED
Model: 32LED01T2M
Chassis / Version: CV3463H-A42
Panel: SM315TWD602 D0206
LED driver (backlight): integrated into MainBoard
PWM LED driver: BIT3267
MOSFET LED driver: MDD1051
Power Supply (PSU): integrated into MainBoard
PWM Power: PWM SOT23-6
MainBoard: CV3463H-A42
IC MainBoard: SPI Flash: 25Q64BSIG, AUDIO: TPA3110LD2
Tuner: CDT-9NT372-RF0
Specifications 32LED01T2M
AKIRA 32LED01T2M
General repair guidelines for TV LCD LED
Possible manifestations of defects
- AKIRA 32LED01T2M 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.
In such cases, the main power source, the AC / DC voltage converter, which is combined with the MainBoard CV3463H-A42, may turn out to be faulty. It is necessary to measure its output voltages, and in case of their absence, check the operability of the power switches of the converters and rectifier diodes for the probability of a short circuit.
In case of diode breakdowns in the secondary circuits, the converter can operate in emergency short-circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key usually breaks.
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 SOT23-6 PWM chips are usually checked by replacing with new ones, or obviously working.
- 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.
A malfunction is usually most likely in these cases at the backlight nodes of the display matrix. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To detect a break in the LED lines without disassembling the panel, a current source is required. It is impossible to open transitions connected in series with a simple multimeter; voltage of several tens of volts is necessary.
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the CV3463H-A42 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). Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing elements SPI Flash: 25Q64BSIG, AUDIO: TPA3110LD2 requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can sometimes be diagnosed by warming up.
If the TV works normally from external devices, but does not tune into television channels, the tuner CDT-9NT372-RF0 may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding conclusions. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
Attention! For users and owners of 32LED01T2M TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
FIRMWARE FOR SPI FLASH -----------> AKIRA 32LED01T2M , Main: CV3463H-A42, Panel: SM315TWD602 D0206
The appearance of the MainBoard CV3463H-A42 is shown in the figure below:CV3463H-A42
CV3463H-A42 can be used in TVs:
AKAI LEA-32L41P (Panel ST3151A05-8), AKIRA 32LED01T2M (Panel SM315TWD602 D0206).
Key features of the AKIRA 32LED01T2M device:
The matrix (LED panel) SM315TWD602 D0206 is installed.
To power the backlight LEDs, a converter is used, combined with the CV3463H-A42 main board, controlled by the BIT3267 PWM controller. As power elements of the LED driver, keys of the MDD1051 type are used.
The power module is combined with the MainBoard and is made according to the flyback AC / DC voltage converter circuit using PWM SOT23-6 microcircuits.
MainBoard - the main board (motherboard) is a CV3463H-A42 module using SPI Flash chips: 25Q64BSIG, AUDIO: TPA3110LD2 and others.
The tuner CDT-9NT372-RF0 provides the reception of television programs and tuning to channels.
Brand: AKIRA, Model: 32LED01T2M.
Shortly from the TV: LCD, LED backlight, 32 ", 1366x768, 720p HD, DVR, sound: 12 W, HDMI connectors: 3.
The composition includes MainBoard CV3463H-A42 and an LCD panel (matrix) SM315TWD602 D0206. The power supply is combined with the MainBoard.
TV AKIRA 32LED01T2M with LCD display SM315TWD602, diagonal size 32 "(81 cm) in 16: 9 format. The declared brightness of the screen is 220 cd / m² with modern LED backlight LED. The ratio of maximum brightness to minimum (contrast) is at least 3000: 1 The LCD panel uses direct backlighting with rear LEDs - Direct LED, HD viewing at 1366x768 pixels in 720p standard (HD Ready), multimedia formats are supported: MP3, MPEG4, JPEG.
The power of the sound system 12 W (2x6 W) provides 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, audio x2, component, SCART, HDMI x3, USB. A headphone jack is provided. The digital tuner is capable of receiving television channels in the DVB-T, DVB-C standards.
Overall dimensions: 735x470x218 mm.
TV Weight: 5.82 kg.
Attention! The SM315TWD602 D0206 panel of the AKIRA 32LED01T2M 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.
