Technical description and composition of the HYUNDAI H-LED19V16 TV, panel type and applicable modules. The composition of the modules.HYUNDAI LED
Model: H-LED19V16
Chassis / Version: CV182L-C
Panel: LM185WH2
MainBoard: CV182L-C
IC MainBoard: Flash: 25Q32BV
Tuner: CDT-3SP512-37
Technical Specifications H-LED19V16
HYUNDAI H-LED19V16
General repair guidelines for TV LCD LED
Repair of electronic equipment usually begins with its external inspection and diagnosis of the malfunction. In this case, you should examine all the internal components of the HYUNDAI H-LED19V16 TV, as well as the external elements of the case. It often happens that visible damage to elements or connections helps determine the direction of the troubleshooting. Electrolytic capacitors of filters with a swollen casing, as well as ring cracks formed in the soldered leads of heating elements, or a layer of coal on burnt resistors sometimes tell the repairman the causes of the malfunction and possible consequences.
If the HYUNDAI H-LED19V16 does not turn on, no control lights on the front panel light up or blink, therefore, there is a very high probability of a power module malfunction. In some cases, only the processor power regulator may be faulty. First of all, it is necessary to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse is cut off in the power supply, in most cases a breakdown of the power key (s) is detected, which can be integrated with the PWM controller, or a separate field-effect transistor can be used. The rectifier bridge diodes and the electrolytic capacitor of the mains rectifier filter should also be checked.
In most cases, key breakdowns in switching power supplies (SMPS) do not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective PWM chip from the manufacturer.
In cases where the HYUNDAI H-LED19V16 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 LM185WH2 panel backlight LEDs). 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.
To check the health of the LEDs, as well as contact connections in the ruler circuit, it is necessary to disassemble the panel.
It is impossible to detect a break in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and to open their transitions, a voltage of several tens of volts is required. Ideally, a current source is suitable for such purposes.
Repair or diagnostics of the CV182L-C motherboard should begin by checking the stabilizers or power converters of its chips. If necessary, you should update the software (software).
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 Flash chips: 25Q32BV and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Owners and users of the HYUNDAI H-LED19V16 TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
FIRMWARE FOR SPI FLASH -----------> HYUNDAI H-LED19V1, Main T.MS6M181.7A 11203, CPU: MST6E181VS-LF-Z1, Panel: MT185GW01 V.4
FIRMWARE FOR SPI FLASH -----------> HYUNDAI H-LED19V16, Main CV182L-C, Panel LM185WH2
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-LED19V16 device:
Installed matrix (LED panel) LM185WH2.
The required supply voltage for all nodes of the HYUNDAI H-LED19V16 TV provides a switching power supply.
MainBoard - the main board (motherboard) is a CV182L-C module, using Flash chips: 25Q32BV and others.
The tuner CDT-3SP512-37 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG Display
Model: LM185WH2-TLE2
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, Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (8-bit)
Response Time: 1.1 / 3.9 (Tr / Td)
Frequency: 60Hz
Lamp Type: 11S2P WLED Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V