Technical description and composition of the HAIER LE32K5000T TV, type of panel and applicable modules. The composition of the modules.HAIER LED
Model: LE32K5000T
Chassis / Version: 20-ASEU173-13-0X
Panel: LQ315T3HC34 536D315PH21
LED backlight: LED315D10-07 (B) p / n: 30331510219
T-CON: 5415TP / K5387TP
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): integrated into MainBoard
MainBoard: 20-ASEU173-13-0X 20173_V13
Control: HTR-A18EN, IR: 2013-2-1, IP2000-ZC12-01 (A)
Technical Specifications LE32K5000T
HAIER LE32K5000T
General repair guidelines for TV LCD LED
Possible malfunctions
- HAIER LE32K5000T does not turn on and does not show any signs of performance at all. Does not blink indicators and does not respond to control buttons.
In this case, first of all, it is necessary to check the operability of the main power source - the AC / DC network voltage converter, all of whose elements are located on the MainBoard 20-ASEU173-13-0X. It is necessary to verify the presence of its output voltages and, if they are completely absent, check the power switches and rectifier diodes for a probable short circuit.
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. PWM controllers, in the absence of visible damage or frank short-circuit between the terminals, are checked by replacing with new, or obviously working.
- There is no image, there is sound, it responds to the remote control, the channels are switched. In some cases, the image appears when you turn on and immediately disappears.
The most likely in these cases is a malfunction of the LED backlight. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
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. You can open the panel and check each LED separately. Typically, Chinese multimeters light up a single 3-volt LED, if you connect the probes in the forward direction to it (red probe to the anode, black to the cathode). In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as a health indicator. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the 20-ASEU173-13-0X 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).
Owners and users of the HAIER LE32K5000T TV should remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
The appearance of the MainBoard 20-ASEU173-13-0X is shown in the figure below:20-ASEU173-13-0X
Key Features of HAIER LE32K5000T:
Installed matrix (LED panel) LQ315T3HC34 536D315PH21.
The matrix control uses the Timing Controller (T-CON) 5415TP.
To power the backlight LEDs, a converter is used, combined with the main board 20-ASEU173-13-0X.
The power module is combined with the MainBoard and is made according to the flyback AC / DC voltage converter circuit.
MainBoard - the main board (motherboard) is a 20-ASEU173-13-0X module.
HAIER LE32K5000T TV with LQ315T3HC34 LCD, 32 "(81 cm) diagonal size in 16: 9 format. The required screen brightness of 220 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 3000000: 1 is achieved by special control of the LEDs. In manufacturing technology LED TV backlighting is realized on the screen of this TV model, and you can view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready).
The LE32K5000T is equipped with SMART software, embedded 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, JPEG. Stereo sound is realized by two built-in 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, SCART, VGA, HDMI x3, USB x2, Ethernet (RJ-45), Wi-Fi. 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.
Overall dimensions: With stand 729x461x179 mm, Without stand 729x432x75 mm.
Attention! The LQ315T3HC34 536D315PH21 panel of the HAIER LE32K5000T 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.
