Technical description and composition of the AKAI LEA-22V07P TV, panel type and applicable modules. The composition of the modules.AKAI LED
Model: LEA-22V07P
Chassis / Version: T.MS6M181.7A 11203
Panel: M215HGE-L10 Rev. C1 // M215HGJ-L21
LED driver (backlight): HQ-LED45D1
Power Supply (PSU): Adapter 12V
MainBoard: T.MS6M181.7A 11203/11453
IC MainBoard: MST6E181VS-LF-Z1, GD25Q32, TDA1517P,
Tuner: CDT-3SP512-36
Technical Specifications LEA-22V07P
AKAI LEA-22V07P
General repair guidelines for TV LCD LED
Possible malfunctions
- The AKAI LEA-22V07P TV does not turn on at all. The control lights do not light or flash. On the remote control and the buttons on the control panel does not respond.
With such manifestations, a malfunction is most likely to be detected in the power module. It is necessary to measure the secondary output voltage, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for a short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during a short circuit in the elements of the primary circuit, the mains fuse usually breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke the excess of maximum current or voltage values. It can be supply, damper circuits, or elements of OOS (negative feedback) stabilization. The reason for the breakdown of the power switch may be PWM (PWM). It is checked only by replacement with a known good one.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
In most cases, the malfunction is caused by the lack of a backlight display. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to detect a break in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and to open their transitions, a voltage of several tens of volts is required. Ideally, a current source is suitable for such purposes. You can open the panel and check each LED separately. Typically, Chinese multimeters light up a single 3-volt LED if you connect the probes in the forward direction to it (red probe to the anode, black to the cathode). In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of health. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- The TV does not enter the operating mode, does not respond to the remote control. The indicator on the front panel lights constantly or blinks.
Repair or diagnostics of the T.MS6M181.7A 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). When repairing an MB board, you need to check its components MST6E181VS-LF-Z1, GD25Q32, TDA1517P,. Defective items should be replaced. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
The malfunction of the tuner CDT-3SP512-36 is established after checking the software and all the supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be controlled by an oscilloscope.
Attention TV owners! Attempts at self-repair of AKAI LEA-22V07P are not recommended by the manufacturer and can lead to serious negative consequences!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> AKAI LEA-22V07P Chassis: T.MS6M181.7A
The appearance of MainBoard T.MS6M181.7A is shown in the figure below:Repair of the motherboard T.MS6M181.7A, which uses the multifunctional processor MST6M181VS combined with a scaler, is advisable to start by checking the power supply of the standby mode, which is implemented using a separate linear stabilizer 3.3V. Further, in the operating mode, it is necessary to check the operability of linear stabilizers or voltage converters necessary to provide power to the processor nodes: 1.2V, 2.5V, 3.3V. A voltage of 2.5V is required to power the DDR W9425G6JH memory. If there is a backlight and no image, the power of the LCD panel 5V or 12V, depending on the type of panel used, it is advisable to measure directly on the LVDS connector. If the TV does not exit Stand-by, does not respond to the remote control and control buttons, update the SPI FLASH software.
T.MS6M181.7A can be used in TVs:
AKAI LEA-19V07P (Panel M185B3-LC1), AKAI LEA-22V07P (Panel M215HGE-L10 Rev.C1), ERISSON 22LEE01 (Panel CLAA215FA04), FUSION FLTV-D22H11 (Panel LQ215M1LGN2), HYUNDAI H-LED19V13 (Panel CX185LEDM ), HYUNDAI H-LED15V7 (Panel N156B6-L0B Rev. C1 / Rev. C2), HYUNDAI H-LEDVD24V10 (Panel M236H3-LA2), RUBIN RB-19S2U (Panel HT185WX1-100), RUBIN RB-22S2UF (Panel LE2360A-V02), RUBIN RB-22S2UFD (Panel 22 "), RUBIN RB-24S2UFD (Panel V236H1-P01).
Key features of the AKAI LEA-22V07P device:
Installed matrix (LED panel) M215HGE-L10 Rev. C1 or M215HGJ-L21.
The LED driver HQ-LED45D1 is used to power the backlight LEDs.
To power all internal nodes of the AKAI LEA-22V07P TV, an external adapter 12V type is used.
MainBoard - the main board (motherboard) is a module T.MS6M181.7A, using microcircuits MST6E181VS-LF-Z1, GD25Q32, TDA1517P, and others.
The tuner CDT-3SP512-36 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: M215HGE-L10
Type: a-Si TFT-LCD, Panel
Diagonal size: 21.5 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 476.64x268.11 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 1.5 / 3.5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 4 strings WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
Brand: AKAI, Model: LEA-22V07P.
Short from TV: LCD, LED backlight, 22 ", 1920x1080, 1080p Full HD, sound: 6 watts.
The composition includes MainBoard T.MS6M181.7A 11203/11453 and an LCD panel (matrix) M215HGE-L10 Rev. C1, or M215HGJ-L21.
Power supply unit external Adapter 12V.
AKAI LEA-22V07P TV with an M215HGE-L10 LCD, 22 "(56 cm) diagonal size of 16: 9 format. The required screen brightness of 250 cd / m² is provided by LED backlighting. The ratio of maximum brightness to minimum (contrast) is 1000 : 1. Edge TV is equipped with lateral LED illumination in this model.The TV design and technical features include viewing programs and movies in high quality HD with a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD). Input high-frequency or video signal m It can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, DivX, MKV, Jpeg.
The power of the acoustic system of sound 6 W (2x3 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, SCART, RGB, 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 35 watts.
Overall dimensions: 540x380x160 mm.
TV Weight: 4 kg.
Attention! The M215HGE-L10 Rev. C1 panel of the AKAI LEA-22V07P 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.
