Technical description and composition of the TOSHIBA 46UL863R TV, type of panel and applicable modules. The composition of the modules.TOSHIBA LED
Model: 46UL863R
Panel: T460HF02 V.1
T-CON: T315HW07 V9 31T14-C0A AUO-12405
LED driver (backlight): 42T15-D00 AUO
Power Supply (PSU): PA-3201
MainBoard: PE0982 V28A001292A1
IC MainBoard: TMPM330FYFG
Tuner: ENGS7305D5F
Specifications 46UL863
TOSHIBA 46UL863R
General repair guidelines for TV LCD LED
Diagnostics of malfunctions and repairs of the TOSHIBA 46UL863R, as well as other electronic devices, it is recommended to start with an external examination of the external and internal elements. According to some external signs of a change in the state of some elements, it is sometimes possible to make assumptions about the nature of the defect, as well as determine the further direction of the troubleshooting. Electrolytic capacitors of filters with a swollen casing, as well as ring cracks formed in the soldered leads of heating elements, or a layer of coal on burnt resistors sometimes tell the repairman the causes of the malfunction and possible consequences.
In the absence of any signs of operability, when the TOSHIBA 46UL863R does not turn on and does not signal anything with the control lights on the panel, there is a possibility of a malfunction of the PA-3201 power supply module of the TV. With the same manifestations, the power regulator of the control processor on the motherboard may be faulty. Diagnostics and repair of the common power supply should always begin with a check of the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
In most cases, key breakdowns in switching power supplies (SMPS) do not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective PWM chip from the manufacturer.
If the TOSHIBA 46UL863R has no image, there is sound and the channels are switched, there is a possibility of a malfunction in the backlight LED circuit of the T460HF02 V.1 panel, or their power converter - LED driver. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the LED driver itself, including in the secondary rectifier of the main PSU.
Often in the absence of backlighting, disassembling the panel is required. It is necessary to check the serviceability of the transitions of the LEDs, as well as the reliability of the contact connections in the rulers and connectors.
It is impossible to detect a break in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and to open their transitions, a voltage of several tens of volts is required. Ideally, a current source is suitable for such purposes.
Repair or diagnostics of the motherboard PE0982 V28A001292A1 should begin by checking the stabilizers or power converters of its microcircuits. If necessary, you should update the software (software).
If the TV works normally from external devices, but does not tune to television channels, the ENGS7305D5F tuner may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals, as well as the power supply of varicaps (30-33V).
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair only to professionals with sufficient experience in the field of electronic equipment repair.
The appearance of MainBoard PE0982 is shown in the figure below:PE0982
PE0982 can be used in TVs:
TOSHIBA 42UL863R (Panel T420HF04 V.1 LED 75024795), TOSHIBA 46SL833R (Panel T460HF02 V.1), TOSHIBA 46UL863R (Panel T460HF02 V.1), TOSHIBA 37SL833R (Panel T370HF01 V.0), TOSHIBA 32SL833R (Panel T315HF01 V.0).
Main features of the TOSHIBA 46UL863R device:
The matrix (LED panel) T460HF02 V.1 is installed.
The matrix control uses the Timing Controller (T-CON) T315HW07.
The LED driver 42T15-D00 is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the TOSHIBA 46UL863R TV is carried out by the PA-3201 power module, or its analogs.
MainBoard - the main board (motherboard) is a PE0982 module, using TMPM330FYFG chips and others.
The ENGS7305D5F tuner provides TV reception and channel tuning.
Trademark: TOSHIBA, Model: 46UL863.
Shortly from the TV: LCD, LED backlight, 46 ", 1920x1080, 1080p Full HD, DVR, there is a satellite tuner, sound: 20W, HDMI: 4, Internet access, Wi-Fi, Smart TV.
The official Toshiba website has firmware (software update) for models 46UL863R (19.3.61.7), 46UL863N (19.3.49.236), 46UL863N (19.3.49.236), 46UL863F (19.3.49.236), 46UL863B (19.3.61.14).
The composition uses MainBoard PE0982 V28A001292A1 and an LCD panel (matrix) T460HF02 V.1.
Power Supply Unit (PSU) PA-3201 Power Supply
TOSHIBA 46UL863 LED TV with T460HF02 LCD, 46 "(117 cm) diagonal size in 16: 9 format. The required screen brightness of 450 cd / m² is provided by LED backlighting. The ratio of maximum brightness to minimum (contrast) is 4000: 1 Dynamic contrast ratio of 4,000,000: 1 is achieved by special control of the operation of the LEDs.This model uses side illumination from Edge LEDs.The design and technical capabilities of the TV include viewing programs and movies in high quality HD at a resolution of 1920x1080 pixels her in the graphic decomposition of the standard 1080p (Full HD).
The 46UL863 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, 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, audio x2, component, SCART, RGB, VGA, HDMI x4, USB x2, Ethernet (RJ-45), Wi-Fi . 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.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-S2 standards.
The power consumed by the TV in the operating mode from the network is 101 watts.
Overall dimensions: with stand 1078x726x287 mm, without stand 1078x657x36 mm.
TV Weight: with stand: 22.1 kg, without stand: 17.95 kg.
Attention! The T460HF02 V.1 panel of the TOSHIBA 46UL863 LED TV 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.