Technical description and composition of the HYUNDAI H-LED19V6 TV, panel type and applicable modules. The composition of the modules.HYUNDAI LED
Model: H-LED19V6
Chassis / Version: CV128L-C
Panel: M185B3-LC1 Rev. C1 // M185BGE-L22 // LTM185WH2 (TL) (A1)
T-CON: M185B3-LC1-X + C; CM1722A; TPS65149
Power Supply (PSU): Adapter 12V 2.2A
MainBoard: CV182L-C
IC MainBoard: CPU: MST6E181VS-LS-Z1, Flash: 25Q32B, RAM: W9425G6JH-4, Sound: TDA1517P
Tuner: CDT-3SP512-37
Technical Specifications H-LED19V6
HYUNDAI H-LED19V6
General repair guidelines for TV LCD LED
Fault diagnosis and repair HYUNDAI H-LED19V6, as well as other electronic devices, it is recommended to start with an external examination of the external and internal elements. According to some external signs of a change in the state of some elements, it is sometimes possible to make assumptions about the nature of the defect, as well as determine the further direction of the troubleshooting. 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.
If the H-LED19V6 TV does not turn on, does not make any sounds when it is turned on, and also no indicators on the front panel light or blink - there is a high probability of a malfunction in the power supply module. In some cases, only the stabilizer or power converter of the control processor may be faulty, which is typical for some HYUNDAI models. 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.
Mos-Fet keys used in switching power supplies (SMPS) rarely fail for no reason to look for when checking other circuit elements. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. The PWM controller chip can also cause a breakdown of the power switch of the converter.
If the HYUNDAI H-LED19V6 does not have an image, but there is sound, the backlight LEDs of the M185BGE-L22 panel or their power converter may malfunction. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working.
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.
On the CV128L-C motherboard, in case of a malfunction, you should first check the operation of all the stabilizers or power converters of the microcircuits and, if necessary, update 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 - SPI FLASH W25Q32 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! For users and owners of H-LED19V6 TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
FIRMWARE FOR SPI FLASH -----------> HYUNDAI H-LED19V6, Main: CV128L-C, Panel M185BGE-L22
In case of failures in Winbond's SPI FLASH software, we recommend that you replace the chip itself with a new one. Sometimes Winbond microcircuits can recover for some time after high-temperature exposure, for example, heating with a soldering station or a lighter, which is sometimes enough to read its contents.Repair MainBoard
The appearance of the MainBoard CV182L-C is shown in the figure below:
The CV182L-C motherboard uses the MST6M182VG processor, combined with a scaler and installed using the BGA technology.
It is advisable to start this type of MainBoard repair by checking the voltage converters and linear stabilizers necessary to provide power to the processor nodes: 1.2V, 2.5V, 3.3V. Check the power supply of the 5V or 12V LCD panel, depending on the type of panel used, it is advisable directly on the LVDS connector. If, in the presence of the necessary supply voltage, the TV does not exit Stand-by mode, does not respond to the remote control and control buttons, the SPI Flash software should be updated.
CV182L-C can be used in TVs:
HYUNDAI H-LED24V6 (Panel M240HW01), HYUNDAI H-LED19V6 (Panel M185B3-LC1 Rev.C1), HYUNDAI H-LED19V16 (Panel LM185WH2), HYUNDAI H-LED15V6 (Panel LP156WD1 (TL)(A1)), HYUNDAI H-LED22V6 (Panel M215HW03 V.1).
Main features of the HYUNDAI H-LED19V6 device:
Installed matrix (LED-panel) M185B3-LC1 Rev. C1 or M185BGE-L22 or LTM185WH2 (TL) (A1).
The matrix control uses the Timing Controller (T-CON) M185B3-LC1-X + C ;.
To power all internal nodes of the HYUNDAI H-LED19V6 TV, an external adapter type 12V 2.2A is used.
MainBoard - the main board (motherboard) is a CV182L-C module using CPU chips: MST6E181VS-LS-Z1, Flash: 25Q32B, RAM: W9425G6JH-4, Sound: TDA1517P and others.
The tuner CDT-3SP512-37 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: M185B3-LC1
Type: a-Si TFT-LCD, Panel
Diagonal size: 18.5 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 409.8x230.4 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 1.5 / 3.5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 9S8P WLED Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V
HYUNDAI H-LED19V6 TV with M185B3-LC1 LCD display, 19 "(48 cm) diagonal size in 16: 9 format. The required screen brightness of 250 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 1000: 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 an analog system max PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, Xvid, DivX, JPEG.
The power of the sound system 4 W (2x2 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, 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, 1360x768.
The power consumed by the TV in the operating mode from the network is 35 watts.
Overall dimensions: 463x342x165 mm.
Mass of the TV: 3 kg.
Attention! The HYUNDAI H-LED19V6 LED TV panel M185B3-LC1 Rev. C1 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.
