Technical description and composition of the HYUNDAI H-LED32V6 TV, panel type and applicable modules. The composition of the modules.Hyundai LED
Model: H-LED32V6
Chassis / Version: T.MS6M181.6A
Panel: HV320WXC-100
LED driver (backlight): integrated into PSU
PWM LED driver: BIT3251
MOSFET LED driver: AOD478, AOD452A
Power Supply (PSU): MP123T -CH32
PWM Power: LD7535 (PWM 6 pin)
MOSFET Power: MDF7N60B
MainBoard: T.MS6M181.6A 11253
IC MainBoard: CPU; MST6E181VS-LF-Z1, SPI Flash; W9425G6JH-4
Tuner: AFT7 / W130G
Technical Specifications H-LED32V6
HYUNDAI H-LED32V6
General repair guidelines for TV LCD LED
Repair and diagnostics of any electronic device, in particular Hyundai H-LED32V6, it is advisable to start with a careful external examination of internal and external 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. 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 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, does not make any sounds or any signs of operability when turned on, there is a certain chance that the MP123T-CH32 power supply module is defective and needs repair. Sometimes with similar manifestations a problem can only occur in the absence of processor power, which is typical for certain Hyundai models. Diagnostics and repair of the common power supply should always begin with a check of the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is verified by replacing it with a known good one.
In cases where the Hyundai H-LED32V6 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 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.
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.
Repair or diagnostics of the main: T.MD6M181.6A motherboard should begin by checking the stabilizers or power converters of its microcircuits. If necessary, you should update the software (software).
When repairing an MB board, you need to check its components percent; MST6E181VS-LF-Z1 flash; W9425G6JH-4. Defective items should be replaced. If BGA chips are installed, their malfunction is usually localized by heating. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
If the TV works normally from external devices, but does not tune into television channels, the AFT7 / W130G tuner may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals, as well as the power supply of varicaps (30-33V).
Attention! Users and owners of H-LED32V6 TVs who do not have the appropriate qualifications, knowledge and experience are strongly discouraged from attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> MP123-24TF Power Supply schematic diagram.
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> MP123T-24TL MP123T-24TL Schematic
The appearance of MainBoard T.MS6M181.6A is shown in the figure below:Repairing the motherboard T.MS6M181.6A, which uses the multi-function processor MST6M181VS, combined with a scaler, it is advisable to start by checking the power supply of the standby mode (Stand-by), which is implemented using a separate linear stabilizer 3.3V. Further, in the operating mode, it is necessary to check the operability of linear stabilizers or voltage converters necessary to provide power to the processor nodes: 1.2V, 2.5V, 3.3V. A voltage of 2.5V is required to power the DDR W9425G6JH memory. If there is a backlight and no image, the power of the LCD panel 5V or 12V, depending on the type of panel used, it is advisable to measure directly on the LVDS connector. If the TV does not exit Stand-by, does not respond to the remote control and control buttons, update the SPI FLASH software.
T.MS6M181.6A can be used in TVs:
AKAI LTA-32L09P (Panel LTA320AP05), ERISSON 32LEN60 (Panel LTA320AN01 D02 ), ERISSON 32LEE01 (Panel 720p HD 1366x768), HAIER LE32Z50 (Panel T315XW06 V5), Hyundai H-LED32V6 (Panel HV320WXC-100), HYUNDAI H-LEDVD32V6 (Panel V320BJ2-P01), HYUNDAI H-LED32V16 (Panel CX315LEDM).
The appearance of the power supply
Main features of the HYUNDAI H-LED32V6 device:
Installed matrix (LED-panel) HV320WXC-100.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by a BIT3251 PWM controller. As power elements of the LED driver, keys of the type AOD478, AOD452A are used.
The necessary supply voltages for all nodes of the HYUNDAI H-LED32V6 TV are generated by the MP123T power module or its analogs using LD7535 microcircuits (PWM 6 pin) and power switches of the MDF7N60B type.
MainBoard - the main board (motherboard) is a T.MS6M181.6A module, using CPU chips; MST6E181VS-LF-Z1, SPI Flash; W9425G6JH-4 and others.
The AFT7 / W130G tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: BOE
Model: HV320WXC-100
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: ADS, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 10%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 1200: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8 (Max.) (G to G)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
HYUNDAI H-LED32V6 TV with a 32 ”(81 cm) diagonal LCD display in 16: 9 format. The required screen brightness of 400 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 4000: 1 The LED-panel of this TV is equipped with LED end-lighting - Edge LED. You can view HD images 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 PAL systems , 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 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, audio x2, component, VGA, HDMI x3, 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 85 watts.
Overall dimensions: 785x537x230 mm.
The mass of the TV: 10 kg.
Attention! The panel of the HYUNDAI H-LED32V6 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.