Technical description and composition of the TOSHIBA 42VL963R TV, type of panel and applicable modules. The composition of the modules.TOSHIBA LED
Model: 42VL963R
Chassis / Version: PE1080A
Panel: LC420EUF (PE) (F1)
LED backlight: 6922L-0023A 401, 6920L-0001C, 6916L0834A, 6916L0835A
T-CON: 32/37/42/47/55 FHD TM240 Ver0.4 P / N: 687-0402C; LG5822
LED driver (backlight): TYL420TE12A01 Rev: 0.2 V71A00026500
Power Supply (PSU): N150A002L - N11-150P1A - V71A00022901
PWM Power: A6069H, FAN6961 (PFC), L6577B
MOSFET Power: K12A50D
MainBoard: V28A001417A1 - PE1080A
IC MainBoard: MSD388USV-VXY
Tuner: ENGS7305D5F
Control: Remote: CT-90405, IR: PE1081 V28A001419A1
Specifications 42VL963
TOSHIBA 42VL963R
General repair guidelines for TV LCD LED
Possible malfunctions
- TOSHIBA 42VL963R does not turn on at all and does not show any signs of operability. Does not blink indicators and does not respond to control buttons.
With such manifestations, in most cases, the N150A002L power module is faulty. It is necessary to measure its secondary output voltages, and if they are absent, check the operability of the power switches (K12A50D) of the converters and rectifier diodes for a short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during short circuit in the elements of the primary circuit, the mains fuse usually breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, power supply, frequency-setting, damper ... as well as elements of the Negative Stabilization Feedback. PWM chip A6069H, FAN6961 (PFC), L6577B can also cause a malfunction of the power switch of the converter and is checked by replacement.
- There is no image, there is sound, it responds to the remote control. Or the image may appear for a second when turned on and immediately disappears.
In most of these cases, a malfunction is detected in the nodes and backlight elements of the LED panel. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To detect a break in the LED lines without disassembling the panel, a current source is required. It is impossible to open transitions connected in series with a simple multimeter; voltage of several tens of volts is necessary.
- The TV does not enter the operating mode, does not respond to the remote control. The indicator on the front panel lights constantly or blinks.
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). Board repair and replacement of MSD388USV-VXY microcircuits are carried out with the necessary equipment, and the corresponding element base. Faults associated with the application of BGA processor soldering technologies can be localized by the heating method.
If you suspect a malfunction of the ENGS7305D5F tuner, first of all, you need to verify the correctness of the software, as well as the presence of the required voltage levels and the data exchange pulses with the processor via the I2C bus on the corresponding tuner pins.
Attention! For users and owners of 42VL963R TVs who do not have the appropriate qualifications, knowledge and experience, we strongly recommend against attempting self-repair in order to avoid negative consequences that could lead to complete non-serviceability of the device.
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)).
PSU Advanced
The N150A002L power supply module is made using a Power Factor Correction (PFC) scheme to eliminate multiple AC harmonics introduced into the power supply by the device. The PFC node is a Step-Up Converter based on a FAN6961 PWM controller that evenly distributes high-frequency impulses of the charging current of the electrolytic capacitor of the rectifier filter of the mains voltage over a period of 50 Hz. The current of its charge in this case will already be determined not by its reactance (usually 10-30 ohms for the network frequency), but by the elements of the converter. As a result, a change in the amplitude of the pulses (envelope) of the consumed current of the converter will repeat the shape and phase of the input sinusoidal voltage. The availability of an increased voltage (about + 380V) in the operating mode on the capacitor of the line filter indicates the serviceability of the PFC node.
The appearance of the power supply
Key Features of the TOSHIBA 42VL963R:
Installed matrix (LED-panel) LC420EUF (PE) (F1).
The matrix control uses the Timing Controller (T-CON) 32.
The LED driver TYL420TE12A01 is used to power the backlight LEDs.
The necessary supply voltages for all nodes of the TOSHIBA 42VL963R TV are generated by the N150A002L power module or its analogs using A6069H, FAN6961 (PFC), L6577B microchips and K12A50D type power switches.
MainBoard - the main board (motherboard) is a module V28A001417A1, using microchips MSD388USV-VXY and others.
The ENGS7305D5F tuner provides TV reception and channel tuning.
Information from an alternative source:
TOSHIBA 42VL963R
Panel Type (Matrix): LC420EUF (PE) (F1)
Motherboard: V28A001417A1 PE1080A, MSD388USV-VXY, Tuner: ENGS7305D5F
T-con: 32/37/42/47/55 FHD TM240 Ver0.4 P / N: 6870-0402C, LG5822
LED Driver: TYL420TE12A01 Rev: 0.2 V71A00026500
PSU: N11-150P1A N150A002L V71A00022901
Additional technical information about the panel:
Brand: LG Display
Model: LC420EUF-PEF1
Type: a-Si TFT-LCD, Panel
Diagonal size: 42 inch
Resolution: 1920x1080, FHD
Display Mode: IPS, Normally Black, Transmissive
Active Area: 930.24x523.26 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: 42VL963.
Briefly from the TV: LCD, LED backlight, 42 ", 1920x1080, 1080p Full HD, 3D, DVR, sound: 20W, HDMI connectors: 4, Internet access, Smart TV.
The Toshiba official website has firmware (software update) for models 42VL963R (6.9.8E.1), 42VL963N (6.9.MD.1), 42VL963G (6.9.MD.1), 42VL963F (6.9.MD.1), 42VL963B ( 6.9.MD.1).
The composition includes MainBoard PE1080A V28A001417A1 and LCD panel (matrix) LC420EUF (PE) (F1).
Power Supply Unit (PSU) N150A002L N11-150P1A V71A00022901 Power Supply.
TOSHIBA 42VL963 LED TV with LC420EUF LCD, 42 "(107 cm) diagonal size 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 42VL963 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 122 watts.
Overall dimensions: with stand 995x634x235 mm, without stand 995x579x42 mm.
TV Weight: with stand: 15 kg, without stand: 12.9 kg.
Attention! The TOSHIBA 42VL963 LED TV panel LC420EUF (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.