Technical description and composition of the ERISSON 42LES69 TV, panel type and applicable modules. The composition of the modules.ERISSON LED
Model: 42LES69
Chassis / Version: 5800-A8M470-OP60
Panel: LC420DUJ-SGE1
T-CON: V14 42 DRD TM120 Control_Ver1.4B
MainBoard: 5800-A8M470-OP60
IC MainBoard: CPU TSUMV29 / 39/59, Flash GD25Q32
Specifications 42LES69
ERISSON 42LES69
General repair guidelines for TV LCD LED
Repair of TVs, as well as other devices, it is advisable to start with an external examination. 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. 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.
Sometimes the ERISSON 42LES69 TV just doesn’t turn on. No control lights on the front panel are lit or blinking, the TV does not respond to the remote control and does not make any sounds or any signs of life when turned on. The most likely cause of the malfunction is a failure of the common power module. If it is working properly, you need to check the processor batteries on the SSB (Main Board). 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.
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 42LES69 does not have an image, there is sound and channels are switched, there is a possibility of a malfunction in the backlight LED circuit of the LC420DUJ-SGE1 panel, or their power converter - LED driver. 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.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
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.
Repair of the motherboard 5800-A8M470-OP60 must 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.
Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing CPU elements TSUMV29 / 39/59, Flash GD25Q32 requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can be diagnosed by warming up.
Remember! Attempts to self-repair by users of the ERISSON 42LES69 TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH -----------> ERISSON 42LES69, Main: 5800-A8M470-OP60, Panel: LC420DUJ-SGE1
The appearance of the MainBoard 5800-A8M470-OP60 is shown in the figure below:
5800-A8M470-OP60Main features of the ERISSON 42LES69 device:
Installed matrix (LED-panel) LC420DUJ-SGE1.
The matrix control uses the Timing Controller (T-CON) V14.
The required supply voltage for all nodes of the TV ERISSON 42LES69 provides a switching power supply.
MainBoard - the main board (motherboard) is a module 5800-A8M470-OP60, using CPU chips TSUMV29 / 39/59, Flash GD25Q32 and others.
Additional technical information about the panel:
Brand: LG Display
Model: LC420DUJ-SGE1
Type: a-Si TFT-LCD, CELL
Diagonal size: 42 inch
Resolution: 1920x1080, FHD
Display Mode: IPS, Normally Black, Transmissive
Active Area: 927.936x521.964 mm
Surface: Antiglare (Haze 1%), Hard coating (3H)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 6.35% (with Polarizer)
Contrast Ratio: 1200: 1
Display Colors: 16.7M (8-bit)
Response Time: 6 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
Trademark: ERISSON, Model: 42LES69.
Shortly from the TV: LCD, 1080p Full HD, diagonal 42 "(107 cm), HDMI: 2, USB: 2, there is support for DVB-T2, backlight type: Edge LED.
The composition uses MainBoard 5800-A8M470-OP60 and LCD panel (matrix) LC420DUJ-SGE1.
ERISSON 42LES69 TV with LCD display LC420DUJ-SGE1, diagonal size 42 "(107 cm) in 16: 9 format. The required brightness of the screen is 230 cd / m² LED backlight LED. Contrast, as the ratio of maximum brightness to minimum, is 5000: 1. The LED-panel of this TV is equipped with end LED backlighting - Edge LED.The design and technical capabilities of the TV include viewing 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 analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, MPEG4, MKV, JPEG .
The power of the sound system 16 W (2x8 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, component, VGA, HDMI x2, USB x2. 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.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-T2 standards.
Overall dimensions: With a support 897x597x230 mm, Without a support 964x567x88 mm.
Attention! The LC420DUJ-SGE1 panel of an ERISSON 42LES69 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.
