Technical description and composition of the RUBIN RB-39D3F TV, panel type and modules used. The composition of the modules.RUBIN LED
Model: RB-39D3F
Chassis / Version: TP.VST59.P83
Panel: CX390DLEDM
LED driver (backlight): integrated into MainBoard
PWM LED driver: OB3350CP
Power Supply (PSU): integrated into MainBoard
PWM Power: LD7536
MOSFET Power: 7N60
MainBoard: TP.VST59.P83
IC MainBoard: Cpu: TSUMV59XU-Z1, Spi Flash: GD25Q32
Tuner: CDT-3NP5I1-10
Specifications RB-39D3F
RUBIN RB-39D3F
General recommendations for TV LCD LED repair
RUBIN RB-39D3F, like other TVs, it is advisable to start repairing with a careful examination of the external and internal elements and modules. It often happens that visible damage to elements or connections helps determine the direction of troubleshooting. Elements with visible damage, for example, capacitors swollen after electrolyte boiling, charred resistors in certain nodes of the circuit, as well as ring cracks in the solders, will help the master guess about the causes and possible consequences of the malfunction.
If the TV does not turn on, none of the indicators on its front panel will light or blink. Also, if the TV does not respond to the remote control and buttons, does not emit any sounds and any signs of operability when turned on, there is a certain probability that the power module is faulty and needs repair. Sometimes a problem with similar manifestations can occur only in the absence of processor power, which is typical for certain RUBIN models. 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.
It should be remembered that in the practice of repair, usually 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 reason that led to a malfunction and provoked a breakdown of the key. Most often, the culprits of the accident are dry electrolytic capacitors or broken resistors in the primary circuit, or the PWM controller microcircuit itself may be faulty. It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuits.
If, when turning on the TV, the image appears and immediately disappears, or is absent initially when turned on, but there is sound and other functions work, there is a high probability of a malfunction of the LED driver (the power converter for the LEDs of the CX390DLEDM panel backlight). In such cases, the general power module is also subject to verification, in which the electrolytic capacitors of the rectifier filter supplying the LED driver should be checked.
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.
To identify an open circuit in the LED lines without disassembling the panel, a current source is required. It is impossible to open the junctions connected in series with a simple multimeter; a voltage of several tens of volts is required.
When trying to repair the motherboard, you should first check the serviceability of linear stabilizers or microcircuit power converters and, if necessary, update the software (software).
In cases of attempts to repair the MB (SSB) board, it is necessary to check the serviceability of its elements - Cpu: TSUMV59XU-Z1, Spi Flash: GD25Q32 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 pins with the board (detected by warming up).
Before changing the CDT-3NP5I1-10 tuner, if it is not possible to tune to television channels, you should make sure that there are supply voltages, including the power supply for varicaps (30-33V), which must be measured at the corresponding terminals of the tuner.
Attention to users! Independent repair of the RUBIN RB-39D3F TV without proper qualifications and experience can lead to its complete non-repairability!
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Service manual and sсhematic diagram TP.VST59.P83-65W18
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> RUBIN RB-39D3F, Main: TP.VST59.P83, Panel: CX390DLEDM
External view of MainBoard TP.VST59.P83 and voltage measurements at test points are shown in the figure below:TP.VST59.P83
The TP.VST59.P83 motherboard is combined with a power supply module and is an independent device based on the TSUMV59Xxx multifunctional processor. Repair of such a board must begin with checking the power supply elements, as well as the operability of voltage converters and linear stabilizers required to provide power to certain processor nodes, in particular: core power supply + 1.2V, built-in DDR + 1.8V memory and stand-by mode node by 3.3V. The supply voltage of the LCD panel is 5V or 12V, depending on the type of panel used, it is necessary to check directly on the LVDS connector.
TP.VST59.P83 can be used in TVs:
AKAI LEA-28A08W (Panel ST2751A01-1), ERISSON 39LEN52 (Panel TLV3931-02), ERISSON 32LEN52 (Panel TLV3231-01), FUSION FLTV-32L28B (Panel TH315B051-MD1), FUSION FLTV-39LF28B (Panel V390HJ1-P02), FUSION FLTV-32L41B (Panel DBMS315LK09-C), FUSION FLTV-40LF28B (Panel DBMS400LK01-A), HYUNDAI H-LED32V18 (Panel CX315DLEDM T320XVN02.A ), MYSTERY MTV-4023LW (Panel CX390DLEDM / T390HVN04.0), ROLSEN RL-39D1305F (Panel V390HJ1-P02 Rev. C1), RUBIN RB-32D3U (Panel T320XVN01.0), RUBIN RB-39D3F (Panel CX390DLEDM), SHIVAKI STV-40LED5 (Panel V390HJ1-P01 Rev C1), SUPRA STV-LC3225AWL (Panel TH315B051-MD2), SUPRA STV-LC32T810WL (Panel TC315F3E5-A), SUPRA STV-LC32880WL (Panel HE315GH-E77GM\PW1 ), SUPRA STV-LC2825WL (Panel SM275TC30), SUPRA STV-LC32820WL (Panel TC315FJE1-MD4), SUPRA STV-LC32810WL (Panel TC315F3E5-A), TELEFUNKEN TF-LED32S7 (Panel ST3151A05-5 CX315DLEDM).
The main features of the RUBIN RB-39D3F device:
Installed matrix (LED panel) CX390DLEDM.
The backlight LEDs are powered by a converter combined with the TP.VST59.P83 main board, controlled by the OB3350CP PWM controller.
The power module is combined with the MainBoard and is made according to the AC / DC flyback voltage converter using LD7536 microcircuits and 7N60 power switches.
MainBoard - the main board (motherboard) is a TP.VST59.P83 module, using Cpu chips: TSUMV59XU-Z1, Spi Flash: GD25Q32 and others.
The CDT-3NP5I1-10 tuner provides reception of television programs and tuning to channels.
RUBIN RB-39D3F TV with LCD CX390DLEDM, diagonal 39 "(99 cm) in 16: 9 format. The required screen brightness of 350 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 500,000: 1 is achieved by special control of the LEDs. The technology of manufacturing the screen of this TV model is realized with LED backlighting.The design and technical capabilities of the TV provide for viewing programs and films in high quality HD at a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC Graphic processing and digital signal shaping is performed in 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards Supported multimedia file formats: MP3, WMA, MPEG4, Xvid, DivX, MKV, JPEG.
Speaker sound system power 20 W (2x10 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, VGA, HDMI x3, USB. A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768, 1920x1080.
Dimensions: with stand 906x598x210 mm, without stand 906x548x76 mm.
Attention! The CX390DLEDM panel of the RUBIN RB-39D3F 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.