Technical description and composition of the HAIER LE24B8000F TV, panel type and applicable modules. The composition of the modules.Haier LED
Model: LE24B8000F
Chassis / Version: MS0V591-ZC01-01
Panel: M236HJJ-P02
LED driver (backlight): integrated into MainBoard
Power Supply (PSU): integrated into MainBoard
MainBoard: MS0V591-ZC01-01
IC MainBoard: TSUMV59XUS, 25Q32BSIG
Technical Specifications LE24B8000F
HAIER LE24B8000F
General repair guidelines for TV LCD LED
Possible manifestations of defects
- Haier LE24B8000F 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.
In such cases, the malfunction should be sought primarily in the elements of the power supply, which is combined in this model with the MainBoard MS0V591-ZC01-01 main board. In the absence of all supply voltages in the secondary circuits, it is necessary first of all to check the power switches and rectifier diodes for a possible partial or complete breakdown.
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.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke an excess of the maximum current or voltage. It can be supply, damper circuits, or elements of OOS (negative feedback) stabilization. The reason for the breakdown of the power switch may be PWM (PWM). It is checked only by replacement with a known good one.
- 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
The most likely in these cases is a malfunction of the LED backlight. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To check the health in the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can check each LED individually with a simple Chinese multimeter (powered by 9 volts) in the P-N-junction test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. A zener diode PN junction indirectly indicates a LED-a
- 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 motherboard MS0V591-ZC01-01 should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - TSUMV59XUS, 25Q32BSIG and replace failed chips with new ones. Some malfunctions may be due to the use of BGA soldering technologies in modern Main Board technologies. Typically, such defects are detected by local heating of the chip.
Attention! Users and owners of LE24B8000F TVs who do not have the appropriate qualifications, knowledge and experience are strongly discouraged from attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
FIRMWARE FOR SPI FLASH ----------> Haier LE24B8000F, Main: MS0V591-ZC01-01, Panel: M236HJJ-P02
The appearance of the MainBoard MS0V591-ZC01-01 is shown in the figure below:MS0V591-ZC01-01
Key Features of HAIER LE24B8000F:
Installed matrix (LED-panel) M236HJJ-P02.
To power the backlight LEDs, a converter is used, combined with the main board MS0V591-ZC01-01.
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 module MS0V591-ZC01-01, using chips TSUMV59XUS, 25Q32BSIG and others.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: M236HJJ-P02
Type: a-Si TFT-LCD, CELL
Diagonal size: 23.6 inch
Resolution: 1920x1080, FHD
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 521.28x293.22 mm
Surface: Antiglare (Haze 3%), Hard coating (3H)
Transmissivity: 4.6% (with Polarizer)
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 10 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
HAIER LE24B8000F TV with M236HJJ-P02 LCD display, 24 "(61 cm) diagonal size in 16: 9 format. The required screen brightness of 180 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 3000000: 1 is achieved by special control of the LEDs. V The LCD panel of the TV has direct backlighting with rear LEDs - Direct LED.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 decomposition according to the standard 1080p (Ful l HD). The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, MPEG4, Jpeg.
The power of the sound system 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, component, SCART, 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, 1280x1024, 1360x768, 1920x1080.
Overall dimensions: With a support 552x368x160 mm, Without a support 552x335x63 mm.
Attention! The panel M236HJJ-P02 of an HAIER LE24B8000F 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.
