Technical description and composition of the HYUNDAI H-LED19V20 TV, panel type and applicable modules. The composition of the modules.HYUNDAI LED
Model: H-LED19V20
Chassis / Version: CV59L-G
Panel: M185BGE-L10 Rev. C1
T-CON: M185B3-LA1-X + C
LED driver (backlight): HQ-LED58-5KA
Power Supply (PSU): Adapter 12V
MainBoard: CV59L-G
IC MainBoard: CPU: TSUMV59XU-Z1, Spi Flash: 25Q32BV
Tuner: CDT-3NP5I1-10
Technical Specifications H-LED19V20
HYUNDAI H-LED19V20
General repair guidelines for TV LCD LED
HYUNDAI H-LED19V20, like other televisions, it is advisable to start repairing with a careful examination of the external and internal elements and modules. In some cases, visible external damage to the elements can indicate the direction of troubleshooting and localization of the defect even before the start of the necessary measurements at the control points of electronic circuit nodes. Experienced repairmen are often aware of the causes of the defect and the possible consequences, for example, from ring cracks in the soldering of the leads of the elements, as well as from swollen capacitors or resistors burnt to coal dust and other external indirect signs.
If the TV does not turn on, no indicators on its front panel are lit or blinking. Also, if the TV does not respond to the remote control and buttons, it does not make any sounds or any signs of operability when it is turned on, there is a certain chance that the adapter 12V power supply module is faulty and needs repair. Sometimes with similar manifestations a problem may occur only in the absence of processor power, which is typical for certain 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.
It should be remembered that in the practice of repair, usually the power switches in switching power supplies (SMPS) do not fail due to their poor quality and, in such cases, it is necessary to look for the cause that led to a malfunction and provoked a breakdown of the key. Most often, the culprits of the accident are dried electrolytic capacitors or dangling resistors in the primary circuit, or the PWM controller chip itself may be faulty. It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuits.
In cases where the HYUNDAI H-LED19V20 TV has lost an image, and the sound is there and all other functions are operational, there is a possibility of a malfunction of the LED driver (converter for powering the backlight LEDs of the M185BGE-L10 Rev. C1 panel). When you turn on the TV, the image may appear briefly and disappear immediately. It must be borne in mind that with such manifestations the LEDs themselves also fail.
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.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
On the CV59L-G motherboard, in the event 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).
In some cases, it is necessary to check or replace (if necessary) the elements of the MB (SSB) card - TSUMV59XU-Z1. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
If you suspect a malfunction of the CDT-3NP5I1-10 tuner, first of all, you need to make sure that there is a varicap supply voltage (30-33V) on the corresponding output of the tuner, as well as other voltage supplying it.
Attention! For users and owners of H-LED19V20 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-LED19V20, Main: CV59L-G, Panel: M185BGE-L10 Rev.C1
The appearance of the MainBoard CV59L-G is shown in the figure below:The MainBoard CV59L-G uses a multifunctional microprocessor type TSUMV59 with an integrated scaler and an external SPI Flash ROM type 25Q32 (4Mb).
It is advisable to begin repairing the motherboard by checking the + 5V voltage converters and the + 1.2V processor core power, as well as the + 3.3V linear voltage regulators and the 1.8V DDRAM processor internal RAM.
In the case of a working display backlight and the absence of an image, it is necessary to check the power of the panel (depending on the type, + 5V or + 12V), which can be measured directly on the LVDS connector. If, in the presence of all the supply voltages, the TV does not enter the operating mode, does not respond to the Remote Control and control buttons, the SPI Flash software should be updated.
CV59L-G can be used in TVs:
HYUNDAI H-LED19V20 (Panel M185BGE-L10 Rev.C1), HYUNDAI H-LED24V20 (Panel M236H1-P01), HYUNDAI H-LED15V27 (Panel B156XW04 V.5).
Main features of the HYUNDAI H-LED19V20 device:
Installed matrix (LED panel) M185BGE-L10 Rev. C1.
The matrix control uses the Timing Controller (T-CON) M185B3-LA1-X + C.
The LED driver HQ-LED58-5KA is used to power the backlight LEDs.
To power all the internal components of the HYUNDAI H-LED19V20 TV, an external adapter 12V type is used.
MainBoard - the main board (motherboard) is a CV59L-G module, using CPU chips: TSUMV59XU-Z1, Spi Flash: 25Q32BV and others.
The tuner CDT-3NP5I1-10 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: M185BGE-L10
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: 200 cd / m²
Contrast Ratio: 700: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 1.5 / 3.5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 4 strings WLED Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V
HYUNDAI H-LED19V20 TV with M185BGE-L10 LCD display, 19 "(48 cm) diagonal size in 16: 9 format. The required screen brightness of 200 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 700: 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 analog systems . Max 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 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.
Overall dimensions: 444x314x175 mm.
Mass of the TV: 2.3 kg.
Attention! The panel of the M185BGE-L10 Rev. C1 LED-TV HYUNDAI H-LED19V20 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.