Technical description and composition of the ERISSON 39LES65 TV, panel type and applicable modules. The composition of the modules.ERISSON LED
Model: 39LES65
Chassis / Version: 5800-A8M57A-OP20
Panel: RDL390HY (T390XVN01.0, 39T11-C02)
LED driver (backlight): integrated into MainBoard
PWM LED driver: TPS61196
Power Supply (PSU): integrated into MainBoard
PWM Power: TEA1733P
MainBoard: 5800-A8M57A-OP20
IC MainBoard: Spi Flash: 25Q32, 25F10
Specifications 39LES65
ERISSON 39LES65
General repair guidelines for TV LCD LED
Diagnostics of malfunctions and repairs ERISSON 39LES65, as well as other electronic devices, it is recommended to start with an external examination of the external and internal elements. It often happens that visible damage to elements or connections helps determine the direction of the troubleshooting. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
If the 39LES65 TV does not turn on, does not make any sounds when it is turned on, and also no indicators on the front panel light or blink - there is a high probability of a malfunction in the power module. In some cases, only the stabilizer or power converter of the control processor may be faulty, which is typical for some ERISSON models. It is advisable to start the troubleshooting of the power supply module by checking the state of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in such a state of breakdown.
It should be remembered that in the practice of repair, usually the power switches in switching power supplies (SMPS) do not fail due to their poor quality and, in such cases, it is necessary to look for the cause that led to a malfunction and provoked a breakdown of the key. Most often, the culprits of the accident are dried electrolytic capacitors or dangling resistors in the primary circuit, or the PWM controller chip itself may be faulty. It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuits.
Sometimes the ERISSON 39LES65 TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the converter for the backlight LEDs of the RDL390HY panel (T390XVN01.0, 39T11-C02), or a break in the LED circuit is possible. In such cases, first of all, it is necessary to verify the serviceability of all the electrolytic capacitors of the filter by supplying the LED driver itself, including in the power supply unit (power supply unit).
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.
When trying to detect a break in the LED lines, it should be taken into account that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
Repair or diagnostics of the 5800-A8M57A-OP20 motherboard should begin by checking the stabilizers or power converters of its microcircuits. If necessary, you should update the software (software).
When repairing an MB board, you need to check its components Spi Flash: 25Q32. Defective items should be replaced. If BGA chips are installed, their malfunction is usually localized by heating.
Attention to users! Self-repair of the ERISSON 39LES65 TV without the appropriate qualifications and experience can lead to its complete non-repairability!
FIRMWARE FOR SPI FLASH -----------> ERISSON 39LES65, Main: 5800-A8M57A-OP20, Panel: RDL390HY (T390XVN01.0, 39T11-C02)
To reduce the backlight current in LED drivers with a TPS61196 controller, it is necessary to proportionally increase the total resistance of the resistors from terminal 10 (ISET) to the housing. The maximum current in each of the six channels (in milliamperes) for the Rset resistor (in kilo-ohms) is determined from the ratio 3992 * 1.229V / Rset. In channels connected in parallel, the currents add up.Repair MainBoard
The appearance of the MainBoard 5800-A8M57A-OP20 is shown in the figure below:
5800-A8M57A-OP20
5800-A8M57A-OP20 can be used in TVs:
ERISSON 40LES73 (Panel V400HJ6-PE1 Full HD), ERISSON 32LES73 (Panel ST3151A05-5 (SDL320HY)), ERISSON 32LES65 (Panel RDL320HY (AD0-301)), ERISSON 39LES65 (Panel RDL390HY (T390XVN01.0 39T11-C02)), ERISSON 29LES65 (Panel SK28M31A (L)), ERISSON 32LES69 (Panel ST3151A05-5 SDL320HY (CD0-605)(02)), ERISSON 40LES69 (Panel V400HJ6-PE1 Rev.C1).
Main features of the ERISSON 39LES65 device:
Installed matrix (LED panel) RDL390HY (T390XVN01.0, 39T11-C02).
To power the backlight LEDs, a converter is used, combined with the main board 5800-A8M57A-OP20, controlled by the TPS61196 PWM controller.
The power module is combined with the MainBoard and is made according to the flyback AC / DC voltage converter circuit using TEA1733P microcircuits.
MainBoard - the main board (motherboard) is a 5800-A8M57A-OP20 module, using Spi Flash chips: 25Q32, 25F10 and others.
Trademark: ERISSON, Model: 39LES65.
Briefly from the TV: LCD, 720p HD, diagonal 39 "(99 cm), HDMI: 2, USB: 2, there is support for DVB-T2, backlight type: Edge LED.
The composition uses MainBoard 5800-A8M57A-OP20 and LCD panel (matrix) RDL390HY (T390XVN01.0, 39T11-C02). The power supply is combined with the MainBoard.
Technical description
ERISSON 39LES65 TV with RDL390HY LCD, 39 "(99 cm) diagonal size in 16: 9 format. The required screen brightness of 280 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 5000: 1. The LED panel of this TV has an end LED backlight - Edge LED. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard for graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in an analog system x PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, WMA, MPEG4, Xvid, MKV, JPEG.
The power of the sound system 12 W (2x6 W) provide two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), audio x2, 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, DVB-T2 standards.
Overall dimensions: 896x577x220 mm.
TV Weight: 10.3 kg.
Attention! The panel RDL390HY (T390XVN01.0, 39T11-C02) of the ERISSON 39LES65 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.