Technical description and composition of the ERISSON 16LEJ03 TV, type of panel and applicable modules. The composition of the modules.ERISSON LED
Model: 16LEJ03
Chassis / Version: LA.M181.B4 1160
Panel: LP156WD1 TL A1
MainBoard: LA.M181.B4 1160
IC MainBoard: CPU MST6E181VS-LF-Z1, Flash 25Q32
Tuner: TNF903SHR-BF-1
Specifications 16LEJ03
ERISSON 16LEJ03
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. 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. Experienced repairmen are often aware of the causes of the defect and the possible consequences, for example, from ring cracks in the soldering of the leads of the elements, as well as from swollen capacitors or resistors burnt to coal dust and other external indirect signs.
In case of a power supply module malfunction, external manifestations may be different, for example, ERISSON 16LEJ03 does not turn on at all and there is no indication of control lights on the front panel. With the same symptoms, the stabilizer (converter) of the power supply to the control processor may be faulty. In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If the ERISSON 16LEJ03 does not have an image but has sound, the LP156WD1 TL A1 panel backlight LEDs or their power converter may malfunction. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working.
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.
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 LA.M181.B4 1160 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).
In some cases, it is necessary to check or replace (if necessary) the elements of the MB board (SSB) - CPU MST6E181VS-LF-Z1, Flash 25Q32. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
Before replacing the TNF903SHR-BF-1 tuner, if there is no channel tuning, you must first check the supply voltage at its terminals.
Once again, remind users! Attempts to self-repair a TV ERISSON 16LEJ03 without the appropriate qualifications and experience can lead to its complete unrepairability!
FIRMWARE FOR SPI FLASH -----------> ERISSON 16LEJ03, Main: LA.M181.B4 1160, Panel: LP156WD1 TL A1
The appearance of MainBoard LA.M181.B4 is shown in the figure below:LA.M181.B4
LA.M181.B4 can be used in TVs:
ERISSON 16LEJ02 (Panel LP156WH4 TL B1), ERISSON 19LEJ02 (Panel LM185WH2 (TL) (A1)), ERISSON 16LEJ03 (Panel LP156WD1 TL A1), ERISSON 24LEJ02 (Panel V236H1-LE2), ERISSON 22LEJ031 (Panel LM215ISF4) Panel V236H1-LE4 REV C1), ERISSON 19LEJ03 (Panel LM185WH2 (TL) (A1)), ERISSON 22LEJ02 (Panel LTM215HT03).
Main features of the ERISSON 16LEJ03 device:
Installed matrix (LED panel) LP156WD1 TL A1.
The required supply voltage for all nodes of the TV ERISSON 16LEJ03 provides a switching power supply.
MainBoard - the main board (motherboard) is a LA.M181.B4 module, using CPU chips MST6E181VS-LF-Z1, Flash 25Q32 and others.
The TNF903SHR-BF-1 tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: LG Display
Model: LP156WD1-TLA1 10 Compatible model
Type: a-Si TFT-LCD, Panel
Diagonal size: 15.6 inch
Resolution: 1600x900, HD +
Display Mode: TN, Normally White, Transmissive
Active Area: 344.16x193.59 mm
Shape Style: Wedge (PCBA Bent, Depth? 5.2mm)
Surface: Glare (Haze 0%), Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 500: 1 (Min.)
Display Colors: 262K (6-bit), CIE1931 60%
Response Time: 8 (Tr + Td)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (2 ch, 6-bit), 40 pins
Voltage: 3.3V
ERISSON 16LEJ03 TV with LP156WD1 LCD display, 16 "(41 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 for 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. Supported media file formats : MP3, MPEG4, DivX, 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 463x360x45 mm, Without stand 442x279x46 mm.
Attention! The panel LP156WD1 TL A1 of the ERISSON 16LEJ03 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.