Technical description and composition of the ERISSON 40LES76T2 TV, type of panel and applicable modules. The composition of the modules.ERISSON LED
Model: 40LES76T2
Chassis / Version: 5800-A6M32G-0P10
Panel: V400HJ6-PE1
LED backlight: 5800-W40001-RP00 VER1.0, 5800-W40001-LP00 VER1.0
LED driver (backlight): integrated into MainBoard
PWM LED driver: CB98AEGN
Power Supply (PSU): integrated into MainBoard
PWM Power: 8 pin
MainBoard: 5800-A6M32G-0P10 VER00.07
IC MainBoard: SPI Flash: GD25Q64
Tuner: CH DM121 C816RH
Specifications 40LES76T2
ERISSON 40LES76T2
General repair guidelines for TV LCD LED
Possible malfunctions
- The ERISSON 40LES76T2 TV does not turn on and does not show any signs of turning on, it does not respond to the control buttons or to the remote control.
In this case, first of all, you should check the operability of the main power source - AC / DC network voltage converter, all of whose elements are located on the MainBoard 5800-A6M32G-0P10 board. It is then necessary to measure its output voltages and, if they are absent, it is necessary to check the power switches and rectifier diodes of the converters for a short circuit probability.
In case of any breakdowns in the secondary circuits, the converter can operate in emergency short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key more often breaks.
Breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback circuits (OOS) of stabilization. PWM controllers (PWM) 8 pin, if they do not have visible damage to the case and frank short-circuit between the terminals, are usually checked by replacement.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
The most likely in these cases is a malfunction of the LED backlight. Usually the cause of the malfunction is in the breakage of the LEDs, or in the connectors of the LED strips, but sometimes the LED driver also turns out to be faulty.
To check the health in the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can check each LED individually with a simple Chinese multimeter (powered by 9 volts) in the P-N-junction test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. A zener diode PN junction indirectly indicates a LED-a
- The TV does not turn on, the indicator indicates standby or operating mode, or blinks.
Repair or diagnostics of the 5800-A6M32G-0P10 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Sometimes it is necessary to check or replace (if necessary) the elements of the MainBoard board - SPI Flash: GD25Q64. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
If the TV works normally from external devices, but does not tune into television channels, the tuner CH DM121 C816RH may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding conclusions. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Entrust repair to professionals with sufficient experience in the field of repair of electronic equipment.
Repair MainBoardThe appearance of the MainBoard 5800-A6M32G-0P10 is shown in the figure below:
5800-A6M32G-0P10
5800-A6M32G-0P10 can be used in TVs:
AIWA 40LE4120 (Panel RDL400FY), AIWA 40LE5120 (Panel RDL400FY (QDO-400)).
Main features of the ERISSON 40LES76T2 device:
Installed matrix (LED-panel) V400HJ6-PE1.
To power the backlight LEDs, a converter is used, combined with the main board 5800-A6M32G-0P10, controlled by the CB98AEGN PWM controller.
The power module is combined with the MainBoard and is designed according to the flyback AC / DC voltage converter using 8 pin microcircuits.
MainBoard - the main board (motherboard) is a 5800-A6M32G-0P10 module, using SPI Flash chips: GD25Q64 and others.
The CH DM121 C816RH tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: INNOLUX
Model: V400HJ6-PE1 Rev. C2
Type: a-Si TFT-LCD, CELL
Diagonal size: 40 inch
Resolution: 1920x1080, FHD
Display Mode: MVA, Normally Black, Transmissive
Active Area: 878.112x485.352 mm
Surface: Antiglare (Haze 1%)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 6.0% (with Polarizer)
Contrast Ratio: 5000: 1
Display Colors: 16.7M (8-bit)
Response Time: 8.5 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
Trademark: ERISSON, Model: 40LES76T2.
Briefly from the TV: LCD, 1080p Full HD, 40 "(102 cm) diagonal, HDMI: 2, USB, DVB-T2 support, backlight type: Edge LED.
The composition uses MainBoard HK-T.RT2957P63 and LCD panel (matrix) V400HJ6-PE1. The power supply is combined with the MainBoard.
TV ERISSON 40LES76T2 with LCD display V400HJ6-PE1, diagonal size 40 "(102 cm) 16: 9 format. The required brightness of the screen is 220 cd / m² LED backlight LED. Contrast, as the ratio of maximum brightness to minimum, is 1200: 1. Edge LED backlighting is implemented in the LED-panel of this TV - 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 graphical decomposition according to the standard 1080p (Full HD). e multimedia file formats: MP3, MPEG4, MKV, JPEG.
The power of the sound system 12 W (2x6 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, SCART, HDMI x2, USB. An output for connecting headphones is provided.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Overall dimensions: 906x532x93 mm.
TV Weight: 8 kg.
Attention! The panel V400HJ6-PE1 of an ERISSON 40LES76T2 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.