Technical description and composition of the ERISSON 32LEK14 TV, panel type and applicable modules. The composition of the modules.ERISSON LED
Model: 32LEK14
Chassis / Version: MST6M182VG-T9B
Panel: 720p HD 1366x768
MainBoard: MST6M182VG-T9B
IC MainBoard: CPU: MST6E182VG-LF-Z1; SPI Flash: GD25Q32;
Tuner: KDTANW-14-09
Specifications 32LEK14
ERISSON 32LEK14
General repair guidelines for TV LCD LED
Repair and diagnostics of any electronic device, in particular ERISSON 32LEK14, it is advisable to start with a careful external examination of internal and external elements. From the visible external changes in the state of the components, it is often possible to determine the further direction of the troubleshooting before making the necessary measurements. If charred resistors, swollen electrolytic or cermet capacitors, ring cracks in the solders of the terminals of transformers or heating elements are detected, it is advisable to establish the causes and consequences of the malfunction that has arisen, as well as to check the connected elements and assemblies.
If the power supply module malfunctions, the external manifestations may be different, for example, ERISSON 32LEK14 does not turn on at all and there is no indication of the indicator lights on the front panel. With the same symptoms, the stabilizer (converter) of the power supply to the control processor may be faulty. 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 there is no image when ERISSON 32LEK14 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 720p HD 1366x768 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.
To check the health of the LEDs, as well as contact connections in the ruler circuit, the panel must be disassembled.
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.
In cases of attempts to repair the MST6M182VG-T9B motherboard, it is necessary to check the operability of the stabilizers or power converters of its microcircuits and, if possible, update the software (software). BGA chips can in most cases be diagnosed by local heating.
In cases of complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, sometimes it may be necessary to replace its CPU chips: MST6E182VG-LF-Z1; SPI Flash: GD25Q32; and other possible malfunctioning components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Before replacing the KDTANW-14-09 tuner, if there is no tuning to the channels, first check the supply voltage at its terminals.
It should be remembered! Attempts to repair the ERISSON 32LEK14 TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
FIRMWARE FOR SPI FLASH -----------> ERISSON 32LEK14, Main: MST6M182VG-T9B, Panel: 720p HD 1366x768
The appearance of the MainBoard is shown in the figure below:MST6M182VG-T9B
MST6M182VG-T9B can be used in TVs:
ERISSON 32LEK14 (Panel 720p HD 1366x768), HYUNDAI H-LED32V11 (Panel K320WLHA300), HYUNDAI H-LED32V5 (Panel K320WL), RUBIN RB-32SL1U (Panel LC320EXN SEA3).
Main features of the ERISSON 32LEK14 device:
Installed matrix (LED-panel) 720p HD 1366x768.
The required supply voltage for all nodes of the TV ERISSON 32LEK14 provides a switching power supply.
MainBoard - the main board (motherboard) is an MST6M182VG-T9B module, using CPU chips: MST6E182VG-LF-Z1; SPI Flash: GD25Q32; and others.
The KDTANW-14-09 tuner provides television reception and channel tuning.
Trademark: ERISSON, Model: 32LEK14.
Shortly from the TV: LCD, 720p HD, 32 "(81 cm) diagonal, HDMI: 2, USB, backlight type: Edge LED.
The composition uses MainBoard MST6M182VG-T9B and an LCD panel (matrix) 720p HD 1366x768.
ERISSON 32LEK14 TV with an LCD display of 720p, 32 "(81 cm) diagonal size of 16: 9 format. The required brightness of the screen is 400 cd / m² by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 1200: 1. Dynamic contrast of 100,000: 1 is achieved by special control of the LEDs. The LED-panel of this TV is equipped with LED end lighting - Edge LED. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Re ady). The input high-frequency 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, 1080p. Supported media file formats: MP3, MPEG4, JPEG The stereo sound is realized by two built-in speakers, and NICAM STEREO audio processing system 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 x2, 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.
The power consumed by the TV in the operating mode from the network is 75 watts.
Overall dimensions: With a support 652x497x192 mm, Without a support 652x422x48 mm.
Attention! The 720p HD 1366x768 panel of an ERISSON 32LEK14 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.