Technical description and composition of the TV AIWA 47LE71213, type of panel and applicable modules. The composition of the modules.AIWA LED
Model: 47LE71213
Chassis / Version: 5800-A5M91T-0P10
Panel: LC470EUJ (SF) (K2)
T-CON: 168P-P47DWM-W2
LED driver (backlight): integrated into PSU
Power Supply (PSU): 5800-P47ELL-W010
PWM Power: TEA1755T
MOSFET Power: 18N50, 2SK3673
MainBoard: 5800-A5M91T-0P10 Ver00.01
IC MainBoard: CPU: MSD6369IV, SPI Flash: 25Q16, Nand: TNGBM4G4D1HBAIR
Tuner: NoName
Specifications 47LE71213
AIWA 47LE71213
General repair guidelines for TV LCD LED
Possible malfunctions
- The AIWA 47LE71213 TV does not turn on at all. There is no reaction to the remote control and control buttons from the front panel. Indicator lights do not light or flash.
Most often, with such manifestations, the main power module 5800-P47ELL-W010 is found to be faulty. In the absence of the necessary supply voltages in the secondary circuits of the converters, it is necessary to check the power switches (18N50, 2SK3673) and rectifier diodes for a possible partial or complete breakdown.
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.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. TEA1755T PWM controllers, in the absence of visible damage or obvious short-circuit between the terminals, are checked by replacing with new ones, or obviously working.
- 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.
When diagnosing, it is necessary to take into account that it is impossible to check the open in the chain of LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally, a current source. By opening the panel, each LED can be checked separately. Typically, Chinese multimeters light up a single 3-volt LED, if you connect probes in the forward direction to it. In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of health. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the 5800-A5M91T-0P10 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). In cases of complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, sometimes it may be necessary to replace its 25Q16 chips and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
If a NoName tuner 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 at the corresponding tuner pins.
It should be remembered! Attempts to self-repair the TV AIWA 47LE71213, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
The appearance of the MainBoard 5800-A5M91T-0P10 is shown in the figure below:5800-A5M91T-0P10
5800-A5M91T-0P10 can be used in TVs:
AIWA 47LE71213 (Panel LC470EUJ (SF)(K2)), SUPRA STV-LC47S660FL00 (Panel LC470EUJ-SFK2 1920x1080).
The appearance of the power supply
Key Features of AIWA 47LE71213:
Installed matrix (LED-panel) LC470EUJ (SF) (K2).
The matrix control uses the Timing Controller (T-CON) 168P-P47DWM-W2.
To power the backlight LEDs, a converter is used, combined with a power supply.
The necessary supply voltages for all nodes of the TV AIWA 47LE71213 are generated by the power module 5800-P47ELL-W010, or its analogs using TEA1755T microcircuits and power switches of the type 18N50, 2SK3673.
MainBoard - the main board (motherboard) is a 5800-A5M91T-0P10 module, using CPU chips: MSD6369IV, SPI Flash: 25Q16, Nand: TNGBM4G4D1HBAIR and others.
The NoName tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: LG Display
Model: LC470EUJ-SFK2
Type: a-Si TFT-LCD, CELL
Diagonal size: 47 inch
Resolution: 1920x1080, FHD
Display Mode: IPS, Normally Black, Transmissive
Active Area: 1039.68x584.82 mm
Surface: Antiglare (Haze 1%), Hard coating (2H)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 5.87% (with Polarizer)
Contrast Ratio: 1200: 1
Display Colors: 16.7M (8-bit)
Response Time: 6 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
Trademark: AIWA, Model: 47LE71213.
Shortly from the TV: LCD, LED backlight, 47 ", 1920x1080, 1080p Full HD, 3D, sound: 16W, HDMI: 4, Wi-Fi, Smart TV.
The composition includes MainBoard 5800-A5M91T-0P10 Ver00.01 and LCD panel (matrix) LC470EUJ (SF) (K2).
Power Supply Unit (PSU) 5800-P47ELL-W010 Power Supply.
AIWA 47LE71213 TV with an LCD display LC470EUJ, diagonal size 47 "(119 cm) in 16: 9 format. The required brightness of the screen is 360 cd / m² LED backlight LED. Dynamic contrast ratio 120,000: 1 is achieved by special control of the LEDs. In manufacturing technology The display of this model is implemented LED backlight.
There is support for 3D images with active (shutter) technology for separating the right and left channels.
The LC470EUJ (SF) (K2) panel and the software of the 5800-A5M91T-0P10 motherboard provide viewing of broadcasts and films in high quality HD with a resolution of 1920x1080 pixels in a graphical decomposition according to the standard 1080p (Full HD).
The 47LE71213 TV model has built-in SMART software and the installed Android Operating System. Connecting to a network 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, MKV, JPEG.
The power of the sound system 16 W (2x8 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, component, VGA, HDMI x4, MHL, USB x2, 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-T2 standards.
The power consumed by the TV working in the network mode is 140 watts.
Overall dimensions: without stand 1024x639x62 mm.
Attention! The panel of the LC470EUJ (SF) (K2) AIWA 47LE71213 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.