Technical description and composition of the HYUNDAI H-LCDVD2200 TV, panel type and applicable modules. The composition of the modules.Hyundai
Model: H-LCDVD2200
Chassis / Version: T.VST26.3B
Panel: LTM220MT05 010
PWM Inverter: TL494C
Power Supply (PSU): LK1060-005C
MainBoard: T.VST26.3B
IC MainBoard: SPI FLASH: MX25L8005, SOUND: YD1517P
Tuner: TDQ-AFT27WT-F
Hyundai
Model: H-LCDVD2200
Chassis / Version: B.LT716B 8497
Panel: LTM220MT05
Inverter (backlight): IVA15204A4 Rev: 2
MainBoard: B.LT716B 8497
IC MainBoard: Flash: MX25L4005, EEPROM: 24C32
Tuner: TDQ-6F6 / T126CW
Technical Specifications H-LCDVD2200
HYUNDAI H-LCDVD2200
General recommendations for repairing TV LCD
Repair of the HYUNDAI TV with the B.LT716B 8497 chassis should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. It often happens that visible damage to elements or connections helps determine the direction of the troubleshooting. In most cases, the repairman can guess the causes of the defect and possible consequences by the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of element leads, swollen rectifier filter capacitors, charred resistors and other circuit elements.
In the absence of any signs of operability, when the HYUNDAI H-LCDVD2200 does not turn on and does not signal anything with the control lights on the panel, there is a possibility of a malfunction of the TV power module. With the same manifestations, the power regulator of the control processor on the motherboard may be faulty. 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.
If the HYUNDAI H-LCDVD2200 does not have an image, there is sound and the channels are switched, there is a possibility of a malfunction of the display backlight, or their power converter - inverter. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the inverter itself, including in the secondary rectifier of the main PSU. It should be remembered that when the protection is turned off in order to diagnose a malfunction, there is always a risk of failure of the power elements of the inverter. After repair, it is necessary to restore all standard converter protection circuits.
Repair of the B.LT716B 8497 motherboard should begin with the diagnosis and verification of all linear stabilizers or power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM. 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: MX25L4005, EEPROM: 24C32 and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Remember! Attempts to self-repair by users of the HYUNDAI H-LCDVD2200 TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Main T.VST26.3B
FIRMWARE FOR SPI FLASH -----------> HYUNDAI H-LCDVD2200, Main B.LT716B 8497, Panel LTM220MT05
The appearance of the MainBoard B.LT716B is shown in the figure below:MainBoard B.LT716B includes a TDA8890H1 processor, a scaler (under the radiator), ROM W9864G61H-6, SPI FLASH 520Kb and EEPROM 24C32.
It is advisable to start the repair of the motherboard by checking all voltage converters and linear stabilizers necessary to provide power to the nodes and chips in the operating and standby modes. Check the power of the LCD panel (depending on the type, + 5V or + 12V), it is convenient to measure 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, you should update the software (firmware) SPI Flash.
B.LT716B can be used in TVs:
HYUNDAI H-LCD1910 (Panel HT235F01-100), HYUNDAI H-LCDVD2200 (Panel LTM220MT05), HYUNDAI H-LCD2400 (Panel M236H1-L08 REV.C1).
Main features of the HYUNDAI H-LCDVD2200 device:
Installed matrix (LCD panel) LTM220MT05.
An IVA15204A4 inverter is used to power the backlight.
The required supply voltage for all nodes of the HYUNDAI H-LCDVD2200 TV is provided by a switching power supply.
MainBoard - the main board (motherboard) is a B.LT716B module using Flash chips: MX25L4005, EEPROM: 24C32 and others.
The TDQ-6F6 / T126CW tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTM220MT05
Type: a-Si TFT-LCD, Panel
Diagonal size: 22.0 inch
Resolution: 1680x1050, WSXGA +
Display Mode: TN, Normally White, Transmissive
Active Area: 473.76x296.1 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 5 (Tr + Td)
Frequency: 60Hz
Lamp Type: 2 pcs CCFL Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
HYUNDAI H-LCDVD2200 TV with an LTM220MT05 LCD display, diagonal size 22 "(56 cm) 16:10 format. The brightness of the screen is 300 cd / m² with CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 1000: 1. It is possible to view images in high quality HD with a resolution of 1680x1050 pixels in the standard of 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. Tandartah 480i, 480p, 576i, 576p, 720p, 1080i Supported multimedia file formats: MP3, MPEG4, VideoCD, SVCD, Picture CD, JPEG.
The power of the sound system 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, S-Video, SCART, RGB, VGA, HDMI. 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, 1280x1024, 1360x768.
Overall dimensions: 535x440x180 mm.
TV Weight: 7 kg.
Attention! The HYUNDAI H-LCDVD2200 LCD TV panel LTM220MT05 is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!