Technical description and composition of the ERISSON 22LEN18 TV, panel type and applicable modules. The composition of the modules.ERISSON LED
Model: 22LEN18
Chassis / Version: T.VST59.62 B12505
Panel: M215HGJ-L21
Power Supply (PSU): Adapter 12V
MainBoard: T.VST59.62 B12505
IC MainBoard: CPU TSUMV59XE A7MKP80C, Flash 25Q322, TDA-1517P, TPS54329 (PWM Step-down), BL8024 (PWM Step-down marker GG ..)
Tuner: CDT-3NP5i1-10
Specifications 22LEN18
ERISSON 22LEN18
General repair guidelines for TV LCD LED
Repair of electronic devices, including the ERISSON 22LEN18 TV, it is advisable to start with an external examination of its external and internal elements. According to some external signs of a change in the state of some elements, it is sometimes possible to make assumptions about the nature of the defect, as well as determine the further direction of the troubleshooting. In most cases, the repairman can guess the causes of the defect and possible consequences by the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of element leads, swollen rectifier filter capacitors, charred resistors and other circuit elements.
Malfunctions of the power module can be expressed in different ways, for example, ERISSON 22LEN18 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.
Mos-Fet keys used in switching power supplies (SMPS) rarely fail for no reason to look for when checking other circuit elements. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. The PWM controller chip can also cause a breakdown of the power switch of the converter.
If there is no image when ERISSON 22LEN18 is turned on, or it appears for a second and disappears, but there is sound, most likely there is a malfunction in the backlight LED circuit of the M215HGJ-L21 panel, or in their power converter. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the general power supply unit.
A malfunction in the backlight circuits often occurs due to an open in the power circuit of the LED lines. It requires disassembling the panel and checking the LEDs themselves, the rations of their terminals, as well as the reliability of the connections in the connectors and rations of the terminals.
When diagnosing, it is necessary to take into account that it is impossible to check the open in the chain of LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally, a current source.
Diagnostics and repair of the motherboard T.VST59.62 B12505 is carried out by checking the performance of the stabilizers or power converters of the module chips. In some cases, a software update is required.
Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - CPU TSUMV59XE A7MKP80C, Flash 25Q32 and replace failed chips with new ones. Some malfunctions may be due to the use of BGA soldering technologies in modern Main Board technologies. Typically, such defects are detected by local heating of the chip.
Before replacing the tuner CDT-3NP5i1-10, if there is no tuning for the channels, you must first check the supply voltage at its terminals.
Remember! Attempts to self-repair by users of the ERISSON 22LEN18 TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH -----------> ERISSON 22LEN18, Main: T.VST59.62 B12505, Panel: M215HGJ-L21
The appearance of MainBoard T.VST59.62 is shown in the figure below:T.VST59.62
It is advisable to start the repair of the T.VST59.62 motherboard based on the TSUMV59Xxx multifunction processor by checking the operability of linear voltage stabilizers or voltage converters necessary to provide power to the processor nodes - 1.2V core power, 1.8V DDR memory and Stand-by 3.3V mode . If there is no image, but the display backlight is working properly, you should check the power supply voltage of the LCD panel 5V or 12V, depending on the type of panel used.
T.VST59.62 can be used on TVs:
Akai LEA-22V21M (Panel A215ED1DA3-1), ERISSON 22LEN18 (Panel M215HGJ-L21), ERISSON 16LEN18 (Panel N156BGE-L11 Rev.C1), ERISSON 24LEN18 (Panel M236HGE-L20), Fusion FLTV-16L10B (Panel T156LL10-AW4), FUSION FLTV-24T9 (Panel M240HW01 V.B), FUSION FLTV-16T9 (Panel B156XTN02), FUSION FLTV-16T9D (Panel T156LL10-AW4), HYUNDAI H-LED19V13 (Panel CX185LEDM ), SUPRA STV-LC19811FL (Panel M185XTN01.3), SUPRA STV-LC19820WL (Panel LM185WH2), SUPRA STV-LC22820FL (Panel LS215AFTNM), SUPRA STV-LC18250WL (Panel B173HW02 V.1), SUPRA STV-LC22810FL (Panel M215HGE-L21 Rev.C1), SUPRA STV-LC16810WL (Panel B156RW01 V.1), SUPRA STV-LC18251FL (Panel N173HGE-L11 Rev. C1), SUPRA STV-LC22811FL (Panel 1080p Full HD 1920x1080), SUPRA STV-LC1982WL (Panel 1080p Full HD 1920x1080), TELEFUNKEN TF-LED22S3 (Panel M215HGE-P02).
Main features of the ERISSON 22LEN18 device:
Installed matrix (LED-panel) M215HGJ-L21.
An external adapter type 12V is used to power all internal components of the ERISSON 22LEN18 TV.
MainBoard - the main board (motherboard) is a T.VST59.62 module, using CPU chips TSUMV59XE A7MKP80C, Flash 25Q322, TDA-1517P, TPS54329 (PWM Step-down), BL8024 (PWM Step-down marker GG ..) and others.
The tuner CDT-3NP5i1-10 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: M215HGJ-L21
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)
Response Time: 1.5 / 3.5 (Tr / Td)
Frequency: 60Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
ERISSON 22LEN18 TV with M215HGJ-L21 LCD, 22 "(56 cm) diagonal size of 16: 9 format. The required screen brightness of 250 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 600: 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). .-Frequency or video signal can be processed in the analog PAL systems, SECAM Graphic processing and formation takes place in the digital signal standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p Supported multimedia file formats:. MP3, 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, 1280x1024, 1360x768.
Overall dimensions: With stand 509x352x150 mm, Without stand 509x308x46 mm.
TV Weight: 5 kg.
Attention! The M215HGJ-L21 panel of the ERISSON 22LEN18 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.