Wednesday 15 April 2020

REPAIR / SERVICING TV ERISSON 32LES66

Technical description and composition of the ERISSON 32LES66 TV, panel type and applicable modules. The composition of the modules.
ERISSON LED
Model: 32LES66
Chassis / Version: 5800-A8M480-0P10
Panel: REL320AH-U100 Rev.00
MainBoard: 5800-A8M480-0P10
IC MainBoard: SPI Flash: EON 25Q32B;
Tuner: ET-9Z2E-CF106H
Specifications 32LES66
ERISSON 32LES66
General repair guidelines for TV LCD LED
Repair and diagnostics of any electronic device, in particular ERISSON 32LES66, it is advisable to start with a careful external examination of internal and external elements. Based on visible external changes in the state of the components, it is often possible to determine the direction of the troubleshooting before making the necessary measurements. If ring cracks are detected in the soldering of the terminals of the elements or dangling connecting tracks, swollen capacitors or charred resistors - all this can be characteristic signs of the causes or consequences of an already known typical malfunction.
If the ERISSON 32LES66 does not turn on, no control lights on the front panel light up or blink, therefore, there is a very high probability of a power module malfunction. In some cases, only the processor power regulator 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.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors in switching power supplies (SMPS) fail for no reason that should be sought by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, or dried electrolytic capacitors or dangling primary resistors BP circuits involved in the stabilization process. In this case, all semiconductor elements of the strapping of the PWM controller chip are subject to verification, which it is desirable to verify by replacement.
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 (power converter for the backlight LEDs of the REL320AH-U100 Rev.00 panel).
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.
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.
If the motherboard 5800-A8M480-0P10 is faulty, first of all it is necessary to check all the linear stabilizers and power converters of its chips, as well as, if necessary, update the software (software). Sometimes you can check the health of MB only by replacement.
In cases of attempts to repair the MB board (SSB), it is necessary to check the health of its elements - SPI Flash: EON 25Q32B; which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
If there is no reception of television channels, but the TV is working properly from external devices, first of all it is necessary to check the power supply to the tuner ET-9Z2E-CF106H and update the software.
Attention to the owners! Attempts to repair the TV ERISSON 32LES66 on its own are not recommended by the manufacturer and can lead to serious negative consequences!


FIRMWARE FOR SPI FLASH  ----------->   ERISSON 32LES66 , Main: 5800-A8M480-0P10, Panel: REL320AH-U100 Rev.00


 The appearance of the MainBoard 5800-A8M480-0P10 is shown in the figure below:
5800-A8M480-0P10
5800-A8M480-0P10 can be used in TVs:
AIWA 47LE61103 (Panel LC470EUN (SE)(F1)), AIWA 42LE6110 (Panel LC420EUN (SE)(M1)), AIWA 39LE6110 (Panel V390HJ1-P01), ERISSON 42LES66 (Panel LC420EUN SEM1), ERISSON 39LES66 (Panel CX275DLEDM), ERISSON 32LES66 (Panel REL320AH-U100 Rev.00), SUPRA STV-LC39660FL (Panel V390HJ1 rev.c1 SEL390V7-S00D ), SUPRA STV-LC32663FL (Panel T320HVN01.2), SUPRA STV-LC39663FL (Panel V390HJ1-P01), SUPRA STV-LC47660FL00 (Panel LC470EUN).
Main features of the ERISSON 32LES66 device:
Installed matrix (LED panel) REL320AH-U100 Rev.00.
The required supply voltage for all nodes of the TV ERISSON 32LES66 provides a switching power supply.
MainBoard - the main board (motherboard) is a 5800-A8M480-0P10 module, using SPI Flash chips: EON 25Q32B; and others.
The ET-9Z2E-CF106H tuner provides television reception and channel tuning.
Trademark: ERISSON, Model: 32LES66.
Briefly from the TV: LCD, 720p HD, 32 "(81 cm) diagonal, HDMI: 3, USB: 2, backlight type: Edge LED.
The composition uses MainBoard 5800-A8M480-0P10 and the LCD panel (matrix) REL320AH-U100 Rev.00.
ERISSON 32LES66 TV with REL320AH-U100 LCD, 32 "(81 cm) diagonal size in 16: 9 format. The required screen brightness of 360 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 1000: 1. Edge LED backlighting is realized in the LED-panel of this TV - Edge LED. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog systems . Max PAL, SECAM, NTSC Image processing and the formation of the digital signal is in 480i standards, 480p, 576i, 576p, 720p, 1080i Supported multimedia file formats:. MP3, MPEG4, DivX, 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, audio x2, component, VGA, DVI HDCP, HDMI x3, 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, 1280x1024, 1360x768.
The power consumed by the TV in the operating mode from the network is 65 watts.
Overall dimensions: With stand 738x502x196 mm, Without stand 738x490x65 mm.
The mass of the TV: 9.3 kg.
Attention! The panel REL320AH-U100 Rev.00 LED-TV ERISSON 32LES66 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.