Technical description and composition of the HYUNDAI H-LED32V11 TV, panel type and applicable modules. The composition of the modules.HYUNDAI LED
Model: H-LED32V11
Chassis / Version: MST6M182VG
Panel: K320WLHA300 // K320WL HV320WX2-201
T-CON: ST3151AD04-1 // HV320WXC-200_X-PCB-X0.0
LED driver (backlight): integrated into PSU
PWM LED driver: OB2273
Power Supply (PSU): K-75L1 465R1013SDJB ZD-96 (G) F
PWM Power: OB2273
MOSFET Power: 4N80
MainBoard: MST6M182VG-T9B
IC MainBoard: Percent MST6E182VG-LF-Z1, Flash 25Q32
Tuner: KDTANW-14-09
Technical Specifications H-LED32V11
HYUNDAI H-LED32V11
General repair guidelines for TV LCD LED
Possible malfunctions
- The HYUNDAI H-LED32V11 TV does not turn on, does not respond to the remote control and control panel buttons, indicators do not light up and do not blink.
Most often, with such manifestations, the K-75L1 main power module turns out to be faulty. It is necessary to measure its secondary output voltages, and if they are absent, check the operability of the power switches (4N80) 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 a short circuit in the 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) OB2273. It is checked only by replacement with a known good one.
- There is no image, there is sound, it responds to the remote control. Or the image may appear for a second when turned on and immediately disappears.
In most cases, the malfunction is caused by the lack of a backlight display. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to check the line of series-connected LEDs without a special current source, and for this purpose it is not safe to use any voltage sources above 12V for them. Then it remains only to open the panel and check each LED separately. Usually, Chinese 9V-powered multimeters light up a single 3-volt LED, if you connect the probes in the forward direction, the red probe to the anode, and the black to the cathode. 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 indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the MST6M182VG-T9B 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). When repairing an MB board, it is necessary to check its components percent MST6E182VG-LF-Z1, Flash 25Q32. Defective items should be replaced. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
If there is no reception of television channels, but the TV works properly from external devices, first of all you need to check the voltage of the KDTANW-14-09 tuner and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.
TV users and owners must remember that attempts to self-repair a HYUNDAI H-LED32V11 TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> schematic diagram download MST6M182
FIRMWARE FOR SPI FLASH -----------> HYUNDAI H-LED32V11 25Q32
FIRMWARE FOR SPI FLASH -----------> HYUNDAI H-LED32V11, Main: MST6M182VG-T9, Panel: HV320WXC-200, FLASH GD25Q32
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> K-75L2 K-75L1 Power supply
If a failure occurs in the SPI FLASH Winbond software, we recommend that you replace the chip with a new one. In addition, faulty Winbond microcircuits can sometimes recover for a while after being heated by a soldering station or even a lighter, which is enough to read its regular contents.Repair MainBoard
The appearance of the MainBoard is shown in the figure below:
MST6M182VG-T9B
MST6M182VG-T9B can be used in TVs:
ERISSON 32LEK14 (Panel 720p HD 1366x768), HYUNDAI H-LED32V11 (Panel K320WLHA300), HYUNDAI H-LED32V5 (Panel K320WL), RUBIN RB-32SL1U (Panel LC320EXN SEA3).
The appearance of the power supply
Main features of the HYUNDAI H-LED32V11 device:
Installed matrix (LED-panel) K320WLHA300 or K320WL HV320WX2-201.
The matrix control uses the Timing Controller (T-CON) ST3151AD04-1.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the OB2273 PWM controller.
The necessary supply voltages for all nodes of the HYUNDAI H-LED32V11 TV are generated by the K-75L1 power module or its analogs using OB2273 microchips and 4N80 type power switches.
MainBoard - the main board (motherboard) is an MST6M182VG-T9B module, using percent chips MST6E182VG-LF-Z1, Flash 25Q32 and others.
The KDTANW-14-09 tuner provides television reception and channel tuning.
HYUNDAI H-LED32V11 TV with K320WLHA300 LCD, 32 "(81 cm) diagonal size in 16: 9 format. The required screen brightness of 300 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 1200: 1. Edge LED backlighting is realized in the LED-panel of this TV - Edge LED. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC, graphic processing and digital signal generation are performed in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, Xvid, DivX, 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 x2, audio x4, component, VGA, HDMI x3, USB x2. 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.
Overall dimensions: without stand 758x523x49 mm.
TV mass: without stand: 9.5 kg.
Attention! The K320WLHA300 panel of the HYUNDAI H-LED32V11 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.