Technical description and composition of the RUBIN RB-32D3U TV, panel type and modules used. The composition of the modules.RUBIN LED
Model: RB-32D3U
Chassis / Version: CV59SH-A39
Panel: T320XVN02.9
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): integrated into MainBoard
MainBoard: CV59SH-A39
IC MainBoard: CPU: TSUMV59XUS-Z1, SPI FLASH: 25Q32
RUBIN LED
Model: RB-32D3U
Chassis / Version: TP.VST59
Panel: T320XVN01.0
LED driver (backlight): integrated into MainBoard
PWM LED driver: OB3350CP
Power Supply (PSU): integrated into MainBoard
PWM Power: LD7536 (6pin)
MOSFET Power: N-FET 600V 7A
MainBoard: TP.VST59.P83
IC MainBoard: 25Q32BVSIG (8), AIC2857F (8), A13B (5), OB3350CP (8), WP9P, H1A, W41P
Tuner: CDT-3NP5I1-10
Specifications RB-32D3U
RUBIN RB-32D3U
General recommendations for TV LCD LED repair
Repair of the RUBIN RB-32D3U TV should begin with a careful external examination of all its components and modules. Often, according to certain external signs, it may be possible to draw certain conclusions about the reasons for the failure of certain elements of the circuit even before the necessary measurements are taken, which will determine a further algorithm for troubleshooting and localizing a defect. 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.
If the RB-32D3U TV does not turn on, does not emit any sounds when turned on, as well as 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 regulator or power converter of the control processor may be faulty, which is typical for some RUBIN models. When diagnosing and repairing the power supply, after replacing the swollen capacitors of the secondary rectifier filters (if any), you must first check the mains fuse. If it breaks, you should check the power elements of the transistors and diodes of the rectifier bridge for avalanche (thermal) breakdown.
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 MPF 36R 74 (6pin) 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.
If, when you turn on RUBIN RB-32D3U, there is no image, or it appears for a second and disappears, but there is sound, most likely there is a malfunction in the LED circuit of the T320XVN01.0 panel backlight, or in their power converter. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the common power supply.
It is often necessary to disassemble the panel to check the health of the LEDs, as well as the contact connections in the connectors and solders.
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).
When repairing an MB board, you need to check its components 25Q32BVSIG (8), AIC2857F (8), A13B (5), OB3350CP (8), WP9P, H1A, W41P. Defective elements should be replaced. If BGA chips are installed, their failure is usually localized by warming up.
If there is no reception of television channels, but the TV is working properly from external devices, first of all, you need to check the supply voltage of the varicaps of the CDT-3NP5I1-10 tuner, which is usually in the range of 30-33V, as well as other supply voltages at the tuner outputs.
Once again, we remind TV users: you should not try to repair yourself without the appropriate knowledge, experience and the necessary qualifications! Trust repairs only to professionals with sufficient experience in the field of electronic repair.
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Service manual and sсhematic diagram TP.VST59.P83-65W18
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> RUBIN RB-32D3U, Main Board: TP.VST59S.P89, Cpu: TSUMV59XUS-Z1, Spi Flash: Winb 25Q32, Panel: CX315DLEDM
Additional MainBoard RepairIf the SPI FLASH Winbond software fails, we recommend replacing the microcircuit with a new one. In addition, faulty Winbond microcircuits can sometimes recover for a while after warming up with a soldering station or even a lighter, which is enough to read its standard contents.
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).
Key features of the RUBIN RB-32D3U device:
Installed matrix (LED-panel) T320XVN01.0.
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 (6pin) microcircuits and N-FET 600V 7A power switches.
MainBoard - the main board (motherboard) is a TP.VST59.P83 module, using chips 25Q32BVSIG (8), AIC2857F (8), A13B (5), OB3350CP (8), WP9P, H1A, W41P and others.
The CDT-3NP5I1-10 tuner provides reception of television programs and tuning to channels.
Information from an alternative source:
RUBIN RB-32D3U The same chassis for BRAVIS LED-DH3230BH
Panel type (matrix): CX315DLEDM
Motherboard: TP.VST59.P83, Tuner: CDT-3NP5I1-10
T-con: T320XVN01.0 CTRL BD / 32T21-C06
Additional technical information about the panel:
Brand: AUO
Model: T320XVN01.0 CELL
Type: a-Si TFT-LCD, CELL
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 2%), Hard coating (3H)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 6.1% (with Polarizer)
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 78%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
RUBIN RB-32D3U TV with LCD T320XVN01.0, 32 "(81 cm) diagonal, 16: 9 format. The required screen brightness of 350 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 400,000: 1 is achieved by special LED control The LED panel of this TV is equipped with edge LED backlighting.It is possible to view images in high quality HD at a resolution of 1366x768 pixels in a graphic resolution of 720p (HD Ready) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM , NTSC Graphic processing and digital signal shaping takes place in 480i, 480p, 576i, 576p, 720p, 1080i standards Supported multimedia file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker power 20 W (2x10 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, SCART, 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.
The power consumed by the TV in operating mode from the network is 56 W.
Dimensions: with stand 750x530x200 mm, without stand 750x504x75 mm.