Technical description and composition of the ERISSON 32LEA01 TV, panel type and applicable modules. The composition of the modules.ERISSON LED
Model: 32LEA01
Chassis / Version: AS-MST6M181VS LS1
Panel: LC320EXN (SD) (A1)
LED backlight: 3660L-0386A; 2 * 48 led
MainBoard: AS-MST6M181VS LS1
IC MainBoard: SPI Flash: Q32B-104HIP;
Tuner: ET-6N1E-CF101R
Specifications 32LEA01
ERISSON 32LEA01
General repair guidelines for TV LCD LED
Repair of the ERISSON 32LEA01 TV should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. Often, by the external signs and nature of the damage to the elements, it becomes possible to draw some conclusions and determine a further algorithm for finding a defect before making the necessary measurements at control points. Electrolytic capacitors of filters with a swollen casing, as well as ring cracks formed in the soldered leads of heating elements, or a layer of coal on burnt resistors sometimes tell the repairman the causes of the malfunction and possible consequences.
In the absence of any signs of operability, when the ERISSON 32LEA01 does not turn on and does not signal anything with the control lights on the panel, there is a possibility of a malfunction of the TV power module. With the same manifestations, the power regulator of the control processor on the motherboard 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, when you turn on the TV, the image appears and immediately disappears, or is missing initially when you turn on, but the sound has other functions that work, there is a high probability of a malfunction of the LED driver (LC320EXN (SD) panel backlight LED power converter (A1)). In such cases, the general power module is also subject to verification, in which the electrolytic capacitors of the rectifier filter supplying the LED driver should be checked.
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.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
In cases of attempts to repair the motherboard AS-MST6M181VS LS1, 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 some cases, chip repair may be required to repair the MB (SSB) board - SPI Flash: Q32B-104HIP; to new or obviously serviceable. In cases where BGA technologies are used, defects are usually localized by the heating method.
Before replacing the tuner ET-6N1E-CF101R, if there is no tuning for the channels, you must first check the supply voltage at its terminals.
Attention to the owners! Attempts to self-repair the ERISSON 32LEA01 TV are not recommended by the manufacturer and can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH -----------> ERISSON 32LEA01 , Main: AS-MST6M181VS LS1, Panel: LC320EXN (SD) (A1)
The appearance of the MainBoard AS-MST6M181VS is shown in the figure below:AS-MST6M181VS
AS-MST6M181VS can be used in TVs:
AKAI LTA-15A15M (Panel LTA150XH-L06), AKAI LEA-22A08G (Panel LM215WF4 (TL)(E7)), AKAI LEA-19A08G (Panel LM185WH2-TLA1), ERISSON 32LEA01 (Panel LC320EXN (SD) (A1)), ERISSON 23LEA01 (Panel LTA230AP01).
Main features of the ERISSON 32LEA01 device:
Installed matrix (LED-panel) LC320EXN (SD) (A1).
The required supply voltage for all nodes of the TV ERISSON 32LEA01 provides a switching power supply.
MainBoard - the main board (motherboard) is an AS-MST6M181VS module, using SPI Flash chips: Q32B-104HIP; and others.
The ET-6N1E-CF101R tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: LG Display
Model: LC320EXN-SDA1
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 10%), Hard coating (3H)
Brightness: 380 cd / m²
Contrast Ratio: 1200: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 68%
Response Time: 6 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
Trademark: ERISSON, Model: 32LEA01.
Briefly from the TV: LCD, 720p HD, 32 "(81 cm) diagonal, HDMI, USB, backlight type: Edge LED.
The composition uses MainBoard AS-MST6M181VS LS1 and LCD panel (matrix) LC320EXN (SD) (A1).
ERISSON 32LEA01 TV with an LC320EXN LCD display, 32 "(81 cm) diagonal size in 16: 9 format. The LED panel of this TV has LED backlighting - Edge LED. You can view images in high quality HD at a resolution of 1366x768 pixels in standard graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Stereo audio is implemented two built-in speakers .Uses NICAM STEREO audio processing system.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV x2, audio x3, 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: With stand 971x633x220 mm, Without stand 971x580x92 mm.
Attention! The LC320EXN (SD) (A1) panel of an ERISSON 32LEA01 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.