HYUNDAI LED
Model: H-LED32V14
Chassis / Version: JUG7.820.1084-2
Panel: T315HW07 V.G
T-CON: 46T03-COK T460HW03 VF CTRL BD
LED driver (backlight): 31T14-D04 T315HW07 V8
Power Supply (PSU): MP022-N REV 1.0 KB-3151C
PWM Power: LD7750RGP
MainBoard: JUG7.820.1084-2 LS09 868M
IC MainBoard: MST6E181VS-LF-Z1, cFeon25Q32, TPA3110
Tuner: CDT-3FP212-34
Technical Specifications H-LED32V14
HYUNDAI H-LED32V14
General repair guidelines for TV LCD LED
Repair of the HYUNDAI H-LED32V14 TV should begin with a careful external examination of all its components and modules. Visible damage to elements can sometimes indicate the direction of the search for a defect even before the necessary measurements are taken. If charred resistors, swollen electrolytic or cermet capacitors, ring cracks in the soldered terminals of transformers or heating elements are detected, it is advisable to establish the causes and consequences of the malfunction that has arisen, as well as to check the connected elements and assemblies.
Sometimes the HYUNDAI H-LED32V14 TV simply does not turn on. No control lights on the front panel are lit or blinking, the TV does not respond to the remote control and does not make any sounds or any signs of life when turned on. The most likely cause of the malfunction is a failure of the common power module. If it is working properly, you need to check the processor batteries on the SSB (Main Board). In the general case, first of all, it is necessary to check the electrolytic capacitors of the secondary rectifier filters and the fuse at the input of the network. If it is broken, then you should check for breakdown of the PN junctions of the rectifier bridge diodes and the key transistor of the converter, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Possible options.
The reasons for the breakdown of the power switch in switching power supplies (IIPS) can be different, for example, a malfunction of semiconductor cells or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller chip or broken resistors in its bundle.
If the HYUNDAI H-LED32V14 has no image, there is sound and the channels are switched, there is a possibility of a malfunction in the backlight LED circuit of the T315HW07 V.G panel, or their power converter - LED driver. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the LED driver itself, including in the secondary rectifier of the main PSU.
Often in the absence of backlighting, disassembling the panel is required. It is necessary to check the serviceability of the transitions of the LEDs, as well as the reliability of the contact connections in the rulers and connectors.
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.
Diagnostics and repair of the motherboard JUG7.820.1084-2 I.S09 868M is carried out by checking the performance of the stabilizers or power converters of the module chips. In some cases, a software update is required.
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 chips MST6E181VS-LF-Z1, cFeon25Q32, TPA3110 and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
The malfunction of the CDT-3FP212-34 tuner is established after checking the software and all the supply voltages at its terminals, including the varicap supply voltage (30-33V).
Remember! Attempts to self-repair by users of the HYUNDAI H-LED32V14 TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH -----------> HYUNDAI H-LED32V14, Main: JUG7.820.1084-2, Panel: T315HW07 V.G
If a failure occurs in the SPI FLASH software from Winbond, we recommend that you replace the chip with a new one. Often, unreadable Winbond microcircuits can temporarily restore their functionality after a strong temperature exposure, for example, heating with a soldering station or a lighter. Sometimes this is enough to read its regular contents.
Repair MainBoardThe appearance of the MainBoard JUG7.820.1084-2 is shown in the figure below:
JUG7.820.1084-2
The appearance of the power supply
Main features of the HYUNDAI H-LED32V14 device:
Installed matrix (LED panel) T315HW07 V.G.
The matrix control uses the Timing Controller (T-CON) 46T03-COK.
The LED driver 31T14-D04 is used to power the backlight LEDs.
The necessary supply voltages are generated for all nodes of the HYUNDAI H-LED32V14 TV by the MP022-N power module or its analogs using LD7750RGP microcircuits.
MainBoard - the main board (motherboard) is a JUG7.820.1084-2 module, using the MST6E181VS-LF-Z1, cFeon25Q32, TPA3110 and other chips.
The tuner CDT-3FP212-34 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: AUO
Model: T315HW07 VG
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: AMVA3, Normally Black, Transmissive
Active Area: 698.4x392.85 mm
Surface: Glare (Haze 0%)
Brightness: 350 cd / m²
Contrast Ratio: 3500: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
HYUNDAI H-LED32V14 TV with T315HW07 LCD display, 32 "(81 cm) diagonal size in 16: 9 format. The required brightness of the screen is 360 cd / m² LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 2800: 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 for graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in an analog system . Ah PAL, SECAM, NTSC Image processing and the formation of the digital signal is in 480i standards, 480p, 576i, 576p, 720p, 1080i Supported multimedia file formats:. MP3, WMA, MPEG4, Xvid, DivX, MKV, JPEG.
The power of the sound speaker system 16 W (2x8 W) is provided by 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 x3, component, VGA, HDMI, USB x2. 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.
The power consumed by the TV in the operating mode from the network is 120 watts.
Overall dimensions: with stand 781x548x219 mm, without stand 781x498x50 mm.
TV Weight: 9.5 kg.
Attention! The T315HW07 V.G panel of the HYUNDAI H-LED32V14 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.