Technical description and composition of the ERISSON 22LES71T2 TV, type of panel and applicable modules. The composition of the modules.ERISSON LED
Model: 22LES71T2
Chassis / Version: TP.S512.PA63
Panel: A215EE1TBA-9
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): integrated into MainBoard
PWM Power: LD5530
MainBoard: TP.S512.PA63
IC MainBoard: S2T512, 25Q64, CD1517CP
Tuner: XF-3SDT-H
Technical Specifications 22LES71T2
ERISSON 22LES71T2
General repair guidelines for TV LCD LED
Repair of electronic devices, including the ERISSON 22LES71T2 TV, it is advisable to start with an external examination of its external and internal elements. Many visible changes in the state of the elements make it possible to determine the future direction of the troubleshooting. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
Malfunctions of the power module can be expressed in different ways, for example, ERISSON 22LES71T2 does not turn on at all and the control lamps on its front panel do not light up and do not blink, there are no signs of operability. It should be noted that with the same external manifestations, the processor power regulator (converter) may be faulty. It is advisable to start the troubleshooting of the power supply module by checking the state of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in such a state of breakdown.
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.
In cases where the ERISSON 22LES71T2 TV has lost its image, but the sound is there and all other functions are operational, there is a possibility of a malfunction of the LED driver (converter for powering the backlight LEDs of the A215EE1TBA-9 panel). When you turn on the TV, the image may appear briefly and disappear immediately. It must be borne in mind that with such manifestations the LEDs themselves also fail.
In most cases of lack of backlight, it becomes necessary to disassemble the panel in order to check the LEDs, connectors, loops and all contact connections. If one or several LEDs does not work in one line, therefore, they are broken and should be replaced.
A break in the line of LEDs connected in series cannot be detected with a multimeter or tester without disassembling the panel. To open all the transitions, several tens of volts are needed, and it is best to use a current source for such purposes.
On the TP.S512.PA63 motherboard, in case of a malfunction, you should first check the operation of all stabilizers or power converters of the microcircuits and, if necessary, update the software (software).
If there is no way to replace the MB (SSB) card, you need to check the health of its elements - Flash W25Q64. Defective components should be replaced.
If there is no reception of television channels, but the TV is working properly from external devices, first of all you need to check the voltage of the tuner XF-3SDT-H.
Attention to the owners! Attempts to self-repair the ERISSON 22LES71T2 TV are not recommended by the manufacturer and can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH -----------> ERISSON 22LES71T2, Main: TP.S512.PA63, Panel: A215EE1TBA-9
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> ERISSON 22LES71T2 Chassis TP.S512.PA63
The appearance of MainBoard TP.S512.PA63 is shown in the figure below:TP.S512.PA63
TP.S512.PA63 can be used in TVs:
Aiwa 24le7021 .
Main features of the ERISSON 22LES71T2 device:
The matrix (LED panel) A215EE1TBA-9 is installed.
To power the backlight LEDs, a converter is used, combined with the TP.S512.PA63 main board.
The power module is combined with MainBoard and is made according to the flyback AC / DC voltage converter circuit using LD5530 microcircuits.
MainBoard - the main board (motherboard) is a TP.S512.PA63 module, using chips S2T512, 25Q64, CD1517CP and others.
The XF-3SDT-H tuner allows you to receive television programs and tune to channels.
Trademark: ERISSON, Model: 22LES71T2.
Shortly from the TV: LCD, 1080p Full HD, diagonal 22 "(56 cm), has HDMI, USB: 2, there is support for DVB-T2, backlight type: Edge LED.
The composition uses MainBoard TP.S512.PA63 and an LCD panel (matrix) A215EE1TBA-9. The power supply is combined with the MainBoard.
Technical description
ERISSON 22LES71T2 TV with an A215EE1TBA-9 LCD display, diagonal size 22 "(56 cm) in 16: 9 format. The required screen brightness of 195 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 1000: 1. The LED-panel of this TV is equipped with end LED backlighting - Edge LED.The design and technical capabilities of the TV include viewing programs and movies in high quality HD at a resolution of 1920x1080 pixels in a graphic layout according to the standard 1080p (Full HD). frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, WMA, MPEG4, 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, VGA, HDMI, MHL, USB x2. 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, 1280x1024, 1360x768, 1920x1080.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-T2 standards.
Overall dimensions: 503x342x153 mm.
Mass of the TV: 4.1 kg.
Attention! The A215EE1TBA-9 panel of an ERISSON 22LES71T2 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.
