Technical description and composition of the HYUNDAI H-LED15V7 TV, panel type and applicable modules. The composition of the modules.HYUNDAI LED
Model: H-LED15V7
Chassis / Version: T.MS6M181.7A
Panel: N156B6-L0B Rev. C1 / Rev. C2
MainBoard: T.MS6M181.7A
IC MainBoard: CPU: MST6E181VS-LF-Z1, FLASH: 25L3206E, DDR: W9425G6JH-4, DC-DC: AIC2565, MP1482DN
Tuner: ET-9L1E-E01W
Technical Specifications H-LED15V7
HYUNDAI H-LED15V7
General repair guidelines for TV LCD LED
Repair and diagnostics of any electronic device, in particular HYUNDAI H-LED15V7, it is advisable to start with a careful external examination of internal and external elements. It often happens that visible damage to elements or connections helps determine the direction of the troubleshooting. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a significant clue in the assumptions about the causes and consequences of the malfunction.
Sometimes the HYUNDAI H-LED15V7 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). 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.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If the HYUNDAI H-LED15V7 TV does not have an image, but there is sound, a malfunction in the LED backlight circuits of the N156B6-LOB Rev. panel is likely. C1 / Rev. C2. It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the PSU (power supply) for an overstated ESR.
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 lines and connectors.
When trying to detect a break in the LED lines, it should be taken into account that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
The motherboard T.MS6M181.7A must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up continuously. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary.
In some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - CPU: MST6E181VS-LF-Z1, FLASH: 25L3206E, DDR: W9425G6JH-4, DC-DC: AIC2565, MP1482DN with new or obviously working ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
Malfunction of the tuner ET-9L1E-E01W is established after checking the software and all supply voltages at its terminals.
Attention! For users and owners of H-LED15V7 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-LED15V7, Main: T.MS6M181.7A, Panel: N156B6-LOB Rev. C1
The appearance of MainBoard T.MS6M181.7A is shown in the figure below:Repair of the motherboard T.MS6M181.7A, which uses the multifunctional processor MST6M181VS combined with a scaler, is advisable to start by checking the power supply of the standby mode, 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.MS6M181.7A can be used in TVs:
AKAI LEA-19V07P (Panel M185B3-LC1), AKAI LEA-22V07P (Panel M215HGE-L10 Rev.C1), ERISSON 22LEE01 (Panel CLAA215FA04), FUSION FLTV-D22H11 (Panel LQ215M1LGN2), HYUNDAI H-LED19V13 (Panel CX185LEDM ), HYUNDAI H-LED15V7 (Panel N156B6-L0B Rev. C1 / Rev. C2), HYUNDAI H-LEDVD24V10 (Panel M236H3-LA2), RUBIN RB-19S2U (Panel HT185WX1-100), RUBIN RB-22S2UF (Panel LE2360A-V02), RUBIN RB-22S2UFD (Panel 22 "), RUBIN RB-24S2UFD (Panel V236H1-P01).
Main features of the HYUNDAI H-LED15V7 device:
Installed matrix (LED-panel) N156B6-L0B Rev. C1 / Rev. C2.
The required supply voltage for all nodes of the HYUNDAI H-LED15V7 TV provides a switching power supply.
MainBoard - the main board (motherboard) is a T.MS6M181.7A module, using CPU chips: MST6E181VS-LF-Z1, FLASH: 25L3206E, DDR: W9425G6JH-4, DC-DC: AIC2565, MP1482DN and others.
The ET-9L1E-E01W tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: CMO
Model: N156B6-L0B 61 Compatible model
Type: a-Si TFT-LCD, Panel
Diagonal size: 15.6 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 344.232x193.536 mm
Shape Style: Wedge (PCBA Bent, Depth? 5.2mm)
Surface: Glare (Haze 0%), Hard coating (3H)
Brightness: 220 cd / m²
Contrast Ratio: 650: 1
Display Colors: 262K (6-bit)
Response Time: 3/8 (Tr / Td)
Frequency: 60Hz
Lamp Type: 9S6P WLED Embedded (LED Driver)
Signal Interface: LVDS (1 ch, 6-bit), 40 pins
Voltage: 3.3V
HYUNDAI H-LED15V7 TV with N156B6-L0B LCD, 15 "(38 cm) diagonal size of 16: 9 format. The required screen brightness of 220 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 600: 1. Edge LED backlighting is implemented in the LED-panel of this TV - 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 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, 1080p Supported multimedia file formats:. MP3, WMA, MPEG4, Xvid, DivX, JPEG.
The power of the acoustic system of sound 6 W (2x3 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, SCART, RGB, 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 40 watts.
Overall dimensions: 355x315x160 mm.
Mass of the TV: 2.9 kg.
Attention! Panel N156B6-L0B Rev. C1 / Rev. The HYUNDAI H-LED15V7 C2 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.