Technical description and composition of the HAIER LE24M600F TV, type of panel and applicable modules. The composition of the modules.Haier LED
Model: LE24M600F
Panel: M240HTN01.0
T-CON: 24M09-C01 M240HTN01.0 CTRL BD; AUO-12304, AAT11732, AAT1301
LED driver (backlight): integrated into MainBoard
PWM LED driver: AP3039AM-G1, AP3608EM
MOSFET LED driver: AO4468, MDD1951, MDD3754
Power Supply (PSU): integrated into MainBoard
PWM Power: OB2273 (PWM SOT23-6)
MOSFET Power: MDF4N65B
MainBoard: MSTV2409-ZC01-01
IC MainBoard: TSUMV59XUS, 25L3206E, RT7257EN, PT2308-S
Control: HTR-A18H
Technical Specifications LE24M600F
HAIER LE24M600F
General repair guidelines for TV LCD LED
Possible manifestations of defects
- Haier LE24M600F TV does not turn on. The control lights do not light or flash. On the remote control and other control buttons does not respond.
Usually with such manifestations, the defect is caused by faulty elements in the batteries. It is necessary to measure the secondary output voltages of the mains supply voltage converter on the MainBoard, and in case of their absence, check the condition of the power switches (MDF4N65B) 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 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 microchip (PWM) OB2273 (PWM SOT23-6) 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, it responds to the remote. Or the image appears when you turn it on and immediately disappears
As a rule, in such cases there is no display 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 should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels with a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required. Then it is necessary to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow you to open the LED in the forward direction or dual LEd are used, then the PN junction of the emergency zener diode can indirectly serve as a health indicator. In case of LED-a malfunction, the zener diode PN junction 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 MSTV2409-ZC01-01 motherboard should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). In some cases, to repair the MB board (SSB), it may be necessary to replace the chips - TSUMV59XUS, 25L3206E, RT7257EN, PT2308-S with new or obviously good ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Entrust repair to professionals with sufficient experience in the field of repair of electronic equipment.
To reduce the backlight current in LED drivers with the AP3039AM controller and the AP3608EM terminal stage (AP3039AM-G1 & AP3608EM-G1), the AP3608EM (AP3608E) microcircuit should proportionally increase the resistor from terminal 14 (ISET) to the housing. The maximum current in each channel (in milliamperes) for the Rset resistor (in kilo-ohms) is determined from the ratio 1.194V / Rset. In channels connected in parallel, the currents add up.
FIRMWARE FOR SPI FLASH ----------> Haier LE24M600F , Main: MSTV2409-ZC01-01, Panel: M240HTN01.0
The appearance of the MainBoard MSTV2409-ZC01-01 is shown in the figure below:MSTV2409-ZC01-01
MSTV2409-ZC01-01 can be used in TVs:
BBK LEM1961 (Panel HM185WX1-400), Haier LE32M600 (Panel LK315T3HB94), Haier LE24M600F (Panel M240HTN01.0), HAIER LE22M600F (Panel LC215DT8A), HAIER LE24M660 (Panel V236BJ1-P03), MYSTERY MTV-3022LW (Panel V290BJ1-PE1), MYSTERY MTV-1923LW (Panel HM185WX3-400).
Key Features of HAIER LE24M600F:
Installed matrix (LED-panel) M240HTN01.0.
The matrix control uses the Timing Controller (T-CON) 24M09-C01.
To power the backlight LEDs, a converter is used, combined with the main board MSTV2409-ZC01-01, controlled by the AP3039AM-G1, AP3608EM PWM controller. As power elements of the LED driver, keys of the type AO4468, MDD1951, MDD3754 are used.
The power module is combined with the MainBoard and is made according to the scheme of a flyback AC / DC voltage converter using OB2273 microcircuits (PWM SOT23-6) and MDF4N65B type power switches.
MainBoard - the main board (motherboard) is an MSTV2409-ZC01-01 module, using TSUMV59XUS, 25L3206E, RT7257EN, PT2308-S, and others microcircuits.
Additional technical information about the panel:
Brand: AUO
Model: M240HTN01.0
Type: a-Si TFT-LCD, Panel
Diagonal size: 24.0 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 531.36x298.89 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC)
Response Time: 3.5 / 1.5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 9S4P WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
HAIER LE24M600F TV with M240HTN01.0 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 4000000: 1 is achieved by special control of the LEDs. The LED panels of this TV are equipped with edge LED backlighting - Edge LED.The design and technical capabilities of the TV include viewing programs and movies in high quality HD at a resolution of 1920x1080 pixels in a graphical decomposition according to the standard 1080p (Full HD). 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, 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, audio x2, component, 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, 1280x1024, 1360x768, 1920x1080.
Overall dimensions: With a support 568x391x170 mm, Without a support 568x344x55 mm.
Attention! The panel of the M240HTN01.0 HAIER LE24M600F 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.
