Technical description and composition of the ERISSON 22LEJ96 TV, type of panel and applicable modules. The composition of the modules.ERISSON LED
Model: 22LEJ96
Chassis / Version: CV95L-G
Panel: M215HTN01.1
Mainboard: CV95L-G
IC MainBoard: CPU TSUMV59XU-Z1, Flash 25Q32BSIG
Specifications 22LEJ96
ERISSON 22LEJ96
General repair guidelines for TV LCD LED
An external examination of the external and internal elements should be carried out in a timely manner before the start of operations for their dismantling. Often, based on certain external signs, it may be possible to draw certain conclusions about the reasons for the failure of certain elements of the circuit even before the necessary measurements are made, which will determine the further algorithm for troubleshooting and localizing the defect. In some cases, faulty elements can be seen with the naked eye, for example, charred resistors or swollen metal-ceramic capacitors, or electrolytic in rectifier filters. Ring cracks formed in the soldered terminals of transformers or heating elements of the circuit are also frequent sources of many malfunctions with a variety of external manifestations.
In cases when the ERISSON 22LEJ96 TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink, and there are no sounds and no signs of operability when turning on, the power module is most likely faulty or the processor is not powered on motherboard (a typical defect of some ERISSON TV models). Diagnostics and repair of the common power supply should always begin with a check of the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is verified by replacing it with a known good one.
If ERISSON 22LEJ96 does not have an image, there is sound and the channels are switched, there is a possibility of a malfunction in the backlight LED circuit of the M215HTN01.1 panel, or their power converter - LED drivers. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the LED driver itself, including in the secondary rectifier of the main PSU.
To check the health of the LEDs, as well as contact connections in the ruler circuit, it is necessary to disassemble the panel.
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.
Repair of the CV95L-G motherboard should begin with the diagnosis and verification of all linear stabilizers or power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM.
In some cases, it is necessary to check or replace (if necessary) the elements of the MB board (SSB) - CPU TSUMV59XU-Z1, Flash 25Q32BSIG. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
Attention to users! Self-repair of the ERISSON 22LEJ96 TV without the appropriate qualifications and experience can lead to its complete non-repairability!
FIRMWARE FOR SPI FLASH -----------> ERISSON 22LEJ96, Main: CV95L-G, Panel: M215HTN01.1
The appearance of the MainBoard CV95L-G is shown in the figure below:CV95L-G
Main features of the ERISSON 22LEJ96 device:
Installed matrix (LED-panel) M215HTN01.1.
The required supply voltage for all nodes of the TV ERISSON 22LEJ96 provides a switching power supply.
MainBoard - the main board (motherboard) is a CV95L-G module, using CPU chips TSUMV59XU-Z1, Flash 25Q32BSIG and others.
Additional technical information about the panel:
Brand: AUO
Model: M215HTN01.1
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, Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 3.8 / 1.2 (Tr / Td)
Frequency: 60Hz
Lamp Type: 12S4P WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
ERISSON 22LEJ96 TV with an M215HTN01.1 LCD, 22 "(56 cm) diagonal size of 16: 9 format. The required brightness of the screen is 250 cd / m² LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 1000: 1. The LED-panel of this TV has an end LED backlight - Edge LED.The design and technical capabilities of the TV include watching programs and movies in high quality HD at a resolution of 1920x1080 pixels in a graphic layout according to the standard 1080p (Full HD). Audio or video signal can be processed in analogue systems PAL, SECAM. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, WMA, MPEG4, Xvid, DivX, MKV , JPEG.
The power of the sound system 4 W (2x2 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, 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, 1360x768.
Overall dimensions: 512x357x165 mm.
TV Weight: 3.8 kg.
Attention! The M215HTN01.1 panel of an ERISSON 22LEJ96 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.
