Technical description and composition of the BBK LED2273FDTW TV, type of panel and applicable modules. The composition of the modules.BBK LED
Model: LED2273FDTW LED2273FW
Panel: M215BD1WU3-2
LED driver (backlight): integrated into PSU
Power Supply (PSU): FSE060E0 F782003311
MainBoard: E182VG-Z1-B0
IC MainBoard: CPU: MST6M182VGC-LF-Z1; SPI Flash: 25Q32FVSIG; SOUND: TPA1517
Tuner: R620D
Technical Specifications LED2273FDTW
BBK LED2273FDTW
General repair guidelines for TV LCD LED
Possible malfunctions
- BBK LED2273FDTW TV does not turn on. There are no signs of operability. The indicators on the front panel do not shine and do not blink, and the remote control and control buttons do not respond.
With such manifestations, the FSE060E0 power module usually fails. It is necessary to measure its secondary output voltages, and in case of their absence, check the serviceability of the power switches 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 power 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. The PWM chip can also cause a malfunction of the power switch of the converter and is checked by replacement.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
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 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 E182VG-Z1-B0 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). Sometimes they require checking or replacing (if necessary) the elements of the MainBoard - CPU board: MST6M182VGC-LF-Z1; SPI Flash: 25Q32FVSIG; SOUND: TPA1517. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
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 voltage of the R620D tuner and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.
TV users and owners need to remember that attempts to self-repair a BBK LED2273FDTW TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> BBK LED1973W LED2273FW LED2473FW (MST182VG + 2IN1 POWER SUPPLY)
The appearance of the MainBoard E182VG-Z1-B0 is shown in the figure below:E182VG-Z1-B0
E182VG-Z1-B0 can be used in TVs:
BBK LED2273FDTW LED2273FW (Panel M215BD1WU3-2), BBK LED2473FW (Panel LM230WF5 (TL)(D1)).
The appearance of the power supply
Main features of the BBK LED2273FDTW device:
Installed matrix (LED panel) M215BD1WU3-2.
To power the backlight LEDs, a converter is used, combined with a power supply.
The formation of the necessary supply voltages for all nodes of the BBK LED2273FDTW TV is carried out by the FSE060E0 power module, or its analogs.
MainBoard - the main board (motherboard) is an E182VG-Z1-B0 module, using CPU chips: MST6M182VGC-LF-Z1; SPI Flash: 25Q32FVSIG; SOUND: TPA1517 and others.
The R620D tuner provides TV reception and channel tuning.
The R620D tuner provides TV reception and channel tuning.
BBK LED-TV LED2273FDTW with M215BD1WU3-2 LCD, diagonal size 22 "(56 cm), 16: 9 format. The required brightness of the screen is 250 cd / m² with LED backlight LED. The ratio of maximum brightness to minimum (contrast) is 1000 : 1. This model uses Edge LED backlighting, and the TV’s design and technical features allow you to watch broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in a graphic resolution of 1080p (Full HD) standard. Input high-frequency or video signal Al can be processed in analog 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, MKV, VideoCD , SVCD, Picture CD, JPEG.
The power of the acoustic system of sound 6 W (2x3 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, audio x2, VGA, HDMI x2, USB. 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, 1360x768, 1920x1080. The digital tuner is capable of receiving television channels in DVB-T MPEG4 standards.
The power consumed by the TV in the operating mode from the network is 35 watts.
Overall dimensions: 550x405x125 mm.
The mass of the TV: 4.2 kg.
Attention! The M215BD1WU3-2 BBK LED2273FDTW panel 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.