Technical description and composition of the TOSHIBA 39L4363D TV, type of panel and applicable modules. The composition of the modules.TOSHIBA LED
Model: 39L4363D
Chassis / Version: L4300
Panel: T390HVN01.0 XL
LED backlight: SVT390A05_L_Rev 3.0_121114
T-CON: T390HVN01.0
LED driver (backlight): integrated into PSU
PWM LED driver: OB3362T // OB3372KP
Power Supply (PSU): B191-101 4H.B1910.011 E DARFON
PWM Power: FAN7930C, IN1M101, FSB127H, SSC9522S
MOSFET Power: P0550ATF, P1060ATF
MainBoard: 32L4300
IC MainBoard: CPU: MSD8881CV-W9N; DRAM: H5TQ2G63DFR; NAND Flash: THGBM4G4D1HBAIR; SPI Flash: W25Q16CVSSIG
Tuner: TDSS-G231D
Control: CE-90429
Specifications 39L4363
TOSHIBA 39L4363D
General repair guidelines for TV LCD LED
Possible malfunctions
- TOSHIBA 39L4363D does not turn on, the indicators on the front panel do not light or flash. The TV does not respond to the control buttons and the remote control.
Typically, with such manifestations, the defect is caused by faulty elements in the main power module B191-101. It is necessary to measure its output voltages, and if they are absent, check the operability of the power switches (P0550ATF, P1060ATF) of the converters and rectifier diodes for a short circuit probability.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the mains fuse and, less often, the current sensor at the source of the key are most often cut off.
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) FAN7930C, IN1M101, FSB127H, SSC9522S, if they do not have visible damage to the housing and open short circuit between the terminals, are usually checked by replacement.
- There is no image, but there is sound, it reacts to the remote control. Or the image appears when you turn it on and immediately disappears
Usually in such cases, a malfunction is detected in the backlight nodes 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 check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the 32L4300 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). If it is not possible to replace the MB (SSB) card, you need to check the health of its elements - CPU: MSD8881CV-W9N; DRAM: H5TQ2G63DFR; NAND Flash: THGBM4G4D1HBAIR; SPI Flash: W25Q16CVSSIG. Defective components should be replaced.
Before replacing the TDSS-G231D tuner, if there is no tuning to the channels, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Attention TV owners! Attempts at self-repair of TOSHIBA 39L4363D are not recommended by the manufacturer and can lead to serious negative consequences!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Toshiba 32L4332/L4333, 39/50/L4333, 32/39/50/L4353, 32/39/50/L4363, 40/50/L6353, 40/50/L6363, 40/50/58/L7333, 40/50/58/L7353, 40/50/58/L7363, Chassis L4300
Service Manuals with Schematic Diagrams 110 pages 2013 on model ------------------> 32L4332, 32L4333, 39L4333, 50L4333, 32L4353, 39L4353, 50L4353, 32L4363, 39L4363, 50L4363, 40L6353, 50L6353, 40L6363, 50L6363, 40L7333, 50L7333, 58L7333, 40L7353, 50L7353, 58L7353, 40L7363, 50L7363, 58L7363
The appearance of the MainBoard 32L4300 is shown in the figure below:32L4300
32L4300 can be used in TVs:
TOSHIBA 32L4353RB (Panel T320HVN04), TOSHIBA 39L4353RB (Panel T390HVN01.0 / XL), TOSHIBA 40L6353RK (Panel LSC400HM06 T01), TOSHIBA 40L7356RK (Panel LSC400HF03 T01), TOSHIBA 40L7363RK (Panel LSC400HF03 T01), TOSHIBA 50L7363RK (Panel 50 inch), TOSHIBA 32L6353RK (Panel 96.32S14.001), TOSHIBA 39L4363D (Panel T390HVN01.0 XL), TOSHIBA 50L4353RK (Panel LC500DUE (SF)(R1)).
Key Features of the TOSHIBA 39L4363D:
Installed matrix (LED-panel) T390HVN01.0 XL.
The matrix control uses the Timing Controller (T-CON) T390HVN01.0.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by the OB3362T // OB3372KP PWM controller.
The necessary supply voltages for all nodes of the TOSHIBA 39L4363D TV are generated by the power module B191-101, or its analogs using FAN7930C, IN1M101, FSB127H, SSC9522S microchips and power switches of the type P0550ATF, P1060ATF.
MainBoard - the main board (motherboard) is a 32L4300 module using CPU chips: MSD8881CV-W9N; DRAM: H5TQ2G63DFR; NAND Flash: THGBM4G4D1HBAIR; SPI Flash: W25Q16CVSSIG and others.
The TDSS-G231D tuner provides television reception and channel tuning.
TOSHIBA 39L4363 LED TV with T390HVN01.0 LCD display, 39 "(99 cm) diagonal size in 16: 9 format. The required screen brightness of 300 cd / m² is provided by LED backlighting. LED display technology is implemented in this model 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 resolution according to the standard 1080p (Full HD).
The 39L4363 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 speaker system of sound 14 W (2x7 W) provide two speakers. The audio processing system NICAM STEREO is used.
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, MHL, USB x2, Ethernet (RJ-45), Wi-Fi, WiDi, Miracast. 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 138 watts.
Overall dimensions: with stand 891x590x200 mm, without stand 891x525x85 mm.
TV Weight: with stand: 8 kg, without stand: 7 kg.
Attention! The T390HVN01.0 XL panel of the TOSHIBA 39L4363 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.