Technical description and composition of the TOSHIBA 55VL963R TV, type of panel and applicable modules. The composition of the modules.TOSHIBA LED
Model: 55VL963R
Chassis / Version: PE1080
Panel: LC550EUF (PE) (F1)
T-CON: 6870C-0402C; LG5822
LED driver (backlight): TYL550TE12A01 REV: 0.3 V71A00026300
PWM LED driver: SM1203, LDB7002A
MOSFET LED driver: 390N15A, SDB5150D
Power Supply (PSU): PA-3201-02TS-LF REV: A
PWM Power: A6069H (STB), FAN7930 (PFC)
MainBoard: V28A001417A1 PE1080
IC MainBoard: MSD388USV-VXY, MSB1231-LF, 24C08, MX25L16, TAS5708
Tuner: ENGS7305D5F, SCEB3V
Technical Specifications 55VL963
TOSHIBA 55VL963R
General repair guidelines for TV LCD LED
Possible malfunctions
- The TOSHIBA 55VL963R TV does not turn on, does not respond to the remote control and buttons on the control panel, does not light up or blink indicators.
With such manifestations, the PA-3201-02TS-LF power module usually fails. It is necessary to measure its output supply voltage, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for the probability of breakdown in semiconductor PN junctions.
In case of any breakdowns in the secondary circuits, the converter can operate in emergency short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key more often breaks.
Breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback (OOS) stabilization circuits. PWM controllers (PWM) A6069H (STB), FAN7930 (PFC), if they do not have visible damage to the case and open short circuit between the terminals, are usually checked by replacement.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
As a rule, in such cases there is no display backlight. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
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.
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the V28A001417A1 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing elements MSD388USV-VXY, MSB1231-LF, 24C08, MX25L16, TAS5708 requires the necessary training and professional skills in repairing modules at the component level. Problems associated with the use of BGA soldering technologies can sometimes be diagnosed by warming up.
If a tuner ENGS7305D5F, SCEB3V is suspected of a malfunction, first of all, it is necessary to verify the correctness of the software, as well as the presence of the necessary supply voltage levels and data exchange pulses with the processor via the I2C bus on the corresponding tuner pins.
We recommend the owners of the 55VL963R TV for repair only to qualified specialists with the necessary work experience! Self-repair attempts without the appropriate knowledge and skills can lead to irreversible negative consequences!
Service Manuals with Schematic Diagrams 134 pages 2012 on models ----------> 32TL933, 40TL933, 46TL933, 32TL936, 40TL936, 46TL936, 32TL963, 40TL963, 46TL963, 32TL966, 40TL966, 46TL966, 32UL975, 40UL975, 46UL975, 23RL933, 32RL933, 40RL933, 23RL936, 32RL936, 40RL936, 23SL970, 32SL970, 40SL970, 32RL953, 40RL953, 42VL963, 47VL963, 55VL963, 42XL975, 47XL975, 55XL975, 40ML933, 46ML933
The appearance of the MainBoard V28A001417A1 is shown in the figure below:V28A001417A1
V28A001417A1 can be used in TVs:
TOSHIBA 42VL963R (Panel LC420EUF (PE)(F1)), TOSHIBA 55VL963R (Panel LC550EUF (PE)(F1)).
The appearance of the power supply
Key Features of the TOSHIBA 55VL963R:
Installed matrix (LED-panel) LC550EUF (PE) (F1).
The matrix control uses the Timing Controller (T-CON) 6870C-0402C ;.
The LED driver TYL550TE12A01 is used to power the backlight LEDs, it is controlled by the PWM controller SM1203, LDB7002A. As power elements of the LED driver, keys of type 390N15A, SDB5150D are used.
The necessary supply voltages for all nodes of the TOSHIBA 55VL963R TV are generated by the PA-3201-02TS-LF power module or its analogs using A6069H (STB), FAN7930 (PFC) microcircuits.
MainBoard - the main board (motherboard) is a module V28A001417A1, using microchips MSD388USV-VXY, MSB1231-LF, 24C08, MX25L16, TAS5708 and others.
Tuner ENGS7305D5F, SCEB3V provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG Display
Model: LC550EUF-PEF1
Type: a-Si TFT-LCD, Panel
Diagonal size: 55 inch
Resolution: 1920x1080, FHD
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 1209.6x680.4 mm
Surface: Antiglare (Haze 1%), Hard coating (2H)
Brightness: 400 cd / m²
Contrast Ratio: 1600: 1
Display Colors: 16.7M / 1.06B (8-bit / 8-bit + Dithering), CIE1931 72%
Response Time: 5 (G to G); 8 (MPRT)
Frequency: 120Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (4 ch, 8/10-bit), 92 pins
Voltage: 12.0V
Brand: TOSHIBA, Model: 55VL963.
Briefly from the TV: LCD, LED backlight, 55 ", 1920x1080, 1080p Full HD, 3D, DVR, sound: 20W, HDMI: 4, Internet access, Smart TV.
The Toshiba official website has firmware (software update) for the models 55VL963R (6.9.8E.1), 55VL963N (6.9.MD.1), 55VL963G (6.9.MD.1), 55VL963F (6.9.MD.1).
The composition uses MainBoard V28A001417A1 PE1080 and LCD panel (matrix) LC550EUF (PE) (F1).
Power Supply Unit (PSU) PA-3201-02TS-LF REV: A Power Supply.
Technical description
TOSHIBA 55VL963 LED TV with LC550EUF LCD display, diagonal size 55 "(140 cm) in 16: 9 format. The required screen brightness of 360 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 7,000,000: 1 is achieved by special control of the LEDs. V This model uses side lighting from Edge LEDs.
There is support for 3D images using passive polarization technology. The design and technical capabilities of the TV include watching programs and movies in high quality HD at a resolution of 1920x1080 pixels in a graphical decomposition according to the standard 1080p (Full HD).
The 55VL963 is equipped with SMART software, integrated applications and the ability to work on the Internet. Connecting to the Internet can be done via Wi-Fi. The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, Xvid, DivX, MKV, JPEG.
The power of the sound system 20 W (2x10 W) provides 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), AV, component, SCART, RGB, VGA, HDMI x4, USB x2, Ethernet (RJ-45). 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, 1920x1080.
The digital tuner is capable of receiving television channels in the standards DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2.
The power consumed by the TV in the operating mode from the network is 185 watts.
Overall dimensions: with stand 1234x795x288 mm, without stand 1234x736x43 mm.
TV Weight: with stand: 26 kg, without stand: 21.2 kg.
Attention! The TOSHIBA 55VL963 LED TV panel LC550EUF (PE) (F1) 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.