Technical description and composition of the HYUNDAI H-LCD3210 TV, panel type and applicable modules. The composition of the modules.Hyundai
Model: H-LCD3210
Chassis / Version: T.MT8223.3B
Panel: LTA320AP02
Inverter (backlight): integrated into PSU
Power Supply (PSU): LK-0P416001A REV0.5
MainBoard: T.MT8223.3B
IC MainBoard: 24C32, W25Q16B,
Tuner: F20WT-3DDR-E
Technical Specifications H-LCD3210
HYUNDAI H-LCD3210
General recommendations for repairing TV LCD
It is advisable to start any repair and diagnostics of the HYUNDAI H-LCD3210 TV with a careful external examination of internal and external elements, including case parts, a display, buttons, and cables. Many visible signs make it possible to determine the future direction of troubleshooting and localization of the defect. 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 probability that the power module is defective and needs repair. Sometimes with similar manifestations a problem can only occur in the absence of processor power, but this happens much less often. In this case, first of all, it is necessary to check the fuse at the mains input. 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 N-FET 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 keys of N-Fet converters 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.
When using the Active Power Factor Correction (CMC) circuitry in the power module, the search for faulty elements is somewhat more complicated.
Sometimes the HYUNDAI H-LCD3210 TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or of the lamps themselves, which can be checked by replacement. In such cases, it is necessary to verify the serviceability of all electrolytic capacitors of the filter according to the power supply of the inverter itself, including in the power supply unit (power supply unit).
In most cases, the diagnosis and repair of the inverter is difficult due to the organization of protection, which turns it off in emergency cases in order to avoid fires during short circuits or breaks in high voltage circuits and during depressurization of lamps. Often, repairmen block the protection circuits in order to make the necessary measurements at the control points of the inverter to identify the causes of the defect.
It should be remembered that when the protection is turned off, there is always a risk of failure of the inverter power elements during diagnosis. After repair, it is necessary to restore all standard converter protection circuits.
In cases of attempts to repair the motherboard T.MT8223.3B, it is necessary to check the operability of the power stabilizers of the microcircuits and, if possible, update the software (software). In cases of attempts to repair the MB board (SSB), it is necessary to check the serviceability of its elements - 24C32, W25Q16B, the tuner F20WT-3DDR-E, which may require replacement with new ones.
Once again, remind users! Attempts to self-repair a HYUNDAI H-LCD3210 TV without the appropriate qualifications and experience can lead to its complete non-repairability!
Repair MainBoardThe appearance of MainBoard T.MT8223.3B is shown in the figure below:
T.MT8223.3B
T.MT8223.3B can be used in TVs:
HYUNDAI H-LCD3210 (Panel LTA320AP02), HYUNDAI H-LCD3212 (Panel LTA320AP02), SUPRA STV-LC2622W (Panel M260TWR1).
Main features of the device HYUNDAI H-LCD3210:
Installed matrix (LCD-panel) LTA320AP02.
To power the backlight, a converter is used, combined with a power supply.
The formation of the necessary supply voltages for all nodes of the HYUNDAI H-LCD3210 TV is carried out by the power module LK-0P416001A, or its analogues.
MainBoard - the main board (motherboard) is a T.MT8223.3B module, using 24C32, W25Q16B, and others.
The F20WT-3DDR-E tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA320AP02
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: PVA, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare (Haze 7%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 5000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8 (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-LCD3210 TV with a 32 ”(81 cm) diagonal LCD display, 32: 9 format. LCD screen brightness of 500 cd / m² is ensured by backlighting with CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 3000: 1. It is possible to 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 PAL, SECAM, NTSC. Graphic processing and digital signal generation takes place in st ndartah 480i, 480p, 576i, 576p, 720p, 1080i.
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, S-Video, component, SCART, RGB, VGA, HDMI x3. 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.
TV Weight: 13 kg.
Attention! The HYUNDAI H-LCD3210 LCD TV panel LTA320AP02 is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!