Technical description and composition of the RUBIN RB-39SD8F TV, panel type and modules used. The composition of the modules.RUBIN LED
Model: RB-39SD8F
Panel: M390F13-E2-A G1
T-CON: T390HVN01.0 XL 39T01-SC, T390HVN04.0, AUO-P301-16, AUO-M106-11, AUO-G1422
MainBoard: JUG7.820.00085339
IC MainBoard: O3362HP
Specifications RB-39SD8F
RUBIN RB-39SD8F
General recommendations for TV LCD LED repair
It is advisable to start repairing the RUBIN RB-39SD8F TV with a careful external examination of both internal and external elements. Based on visible external changes in the state of components, it is usually possible to determine the further direction of troubleshooting and localization of a defect before taking the necessary measurements. If charred resistors, swollen electrolytic or sintered capacitors, ring cracks in the soldering of the terminals of transformers or heating elements are found, it is advisable to establish the causes and consequences of the malfunction, as well as to check the connected elements and assemblies.
In the event of a power supply module malfunction, external manifestations can be different, for example, RUBIN RB-39SD8F does not turn on at all and there is no indication of control lamps on the front panel. With the same symptoms, the regulator (converter) of the control processor power supply may be faulty. The first step is to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse in the power supply is broken, in most cases a breakdown of the power switch (s) is detected, which can be integrated with a PWM controller, or a separate field-effect transistor can be used. You should also check the diodes of the rectifier bridge and the electrolytic capacitor of the mains rectifier filter.
In most cases, key breakdowns in switching power supplies (SMPS) do not occur without reason and you should look for other faulty circuit elements that could provoke a defect. This can be dry electrolytic capacitors in the primary circuit, and faulty damper elements, as well as broken resistors or punctured semiconductor elements in the stabilization circuits. Possible defect of the PWM chip from the manufacturer.
If RUBIN RB-39SD8F does not have a picture, but there is sound and the TV is controlled from the remote control, there is likely a malfunction in the backlight circuits of the M390F13-E2-A G1 panel. LEDs or power converter - LED driver may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to make sure that the electrolytic capacitors of the rectifier filter supplying the LED driver are in good working order, and check the LEDs by connecting those that are known to be working for diagnostics.
A malfunction in the backlight circuits often occurs due to an open circuit in the power supply circuit of the LED lines. It is required to disassemble the panel and check the LEDs themselves, the ration of their conclusions, as well as the reliability of the connections in the connectors and the ration of the connector pins.
An open circuit in the lines of LEDs connected in series cannot be detected with a multimeter or tester without disassembling the panel. It takes several tens of volts to open all the junctions, and it is best to use a current source for such purposes.
Diagnostics and repair of the JUG7.820.00085339 motherboard is carried out by checking the functionality of the stabilizers or power converters of the module chips. In some cases, a software update is required.
In some cases, elements of the MB (SSB) - O3362HP board require checking or replacing (if necessary). In cases where a BGA processor is used, its malfunction is usually detected by a local warm-up method.
Remember! Attempts to repair the RUBIN RB-39SD8F TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> RUBIN RB-39SD8F , Main: JUG7.820.00085339
Key features of the RUBIN RB-39SD8F device:Installed matrix (LED panel) M390F13-E2-A G1.
Matrix control uses Timing Controller (T-CON) T390HVN01.0.
The necessary supply voltages for all nodes of the RUBIN RB-39SD8F TV are provided by a switching power supply.
MainBoard - the main board (motherboard) is a JUG7.820.00085339 module, using O3362HP microcircuits and others.
Information from an alternative source:
RUBIN RB-39SD8F
Panel type (matrix): M390F13-E2-A
Motherboard: JUC7.820.00085339,
T-con: T390HVN01.0 new menu
RUBIN RB-39SD8F TV with LCD M390F13-E2-A, 39 "(99 cm) diagonal, 16: 9. The required screen brightness of 350 cd / m² is provided by LED backlight. Dynamic contrast ratio 450,000: 1 is achieved by special control The LCD-panel of the TV is equipped with direct backlighting with rear-mounted LEDs - Direct LED.The design and technical capabilities of the TV provide viewing of broadcasts and films in high quality HD at a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD). or the video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal shaping occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker power 16 W (2x8 W) is provided by two speakers. Uses the NICAM stereo signal processing system and the Sound Surround function.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, VGA, HDMI x2, USB x2. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080.
Dimensions: with stand 890x570x210 mm, without stand 890x529x75 mm.
TV weight: 15 kg.
Attention! The M390F13-E2-A G1 panel of the RUBIN RB-39SD8F LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.