Technical description and composition of the HYUNDAI LCDVD2200 TV, type of panel and applicable modules. The composition of the modules.Hyundai
Model: LCDVD2200
Chassis / Version: B.TD701B-1
Panel: LM220WE1
PWM Inverter: TL494L
MainBoard: B.TD701B-1
IC MainBoard: PCU: TDA15021H / N1C00, Scaler: NT68565FC, Submicom: NT68F631ALG, EEPROM: 24C16, Sound: TDA1517
Tuner: TDQ-6f6 / T126CW
Technical Specifications H-LCDVD2200
HYUNDAI LCDVD2200
General recommendations for repairing TV LCD
HYUNDAI with B.TD701B-1 chassis, like other televisions, it is advisable to start repairing with a careful examination of the external and internal elements and modules. It often happens that visible damage to elements or connections helps determine the direction of the troubleshooting. Carbonized paint on the upper layer of resistors, electrolytic capacitors of rectifier filters swollen after boiling, cracked soldering at the terminals of heating elements or transformers can often suggest the cause of the defect and possible consequences.
If the power supply module malfunctions, the external manifestations may be different, for example, the HYUNDAI LCDVD2200 does not turn on at all and there is no indication of the indicator lights on the front panel. With the same symptoms, the stabilizer (converter) of the power supply to the control processor may be faulty. It is advisable to start the troubleshooting of the power supply module by checking the state of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in such a state of breakdown.
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.
If the HYUNDAI LCDVD2200 does not have an image, but there is sound, there is a possibility of a malfunction of the backlight or power converter. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working. When diagnosing a malfunction of the inverter with the protection off, special precautions must be taken, because there is a risk of failure of the power elements of the inverter. After diagnosis, it is imperative to restore the protection circuits for the inverter to operate normally.
Repair of the B.TD701B-1 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. Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - PCU: TDA15021H / N1C00, Scaler: NT68565FC, Submicom: NT68F631ALG, EEPROM: 24C16, Sound: TDA1517 and replace the failed chips with new ones. Some malfunctions may be due to the use of BGA soldering technologies in modern Main Board technologies. Typically, such defects are detected by local heating of the chip.
It should be remembered! Attempts to repair the HYUNDAI LCDVD2200 TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete failure of the device!
FIRMWARE FOR SPI FLASH -----------> HYUNDAI LCDVD2200, Main: B.TD701B-1, Panel: LM220WE1
FIRMWARE FOR SPI FLASH -----------> HYUNDAI LCDVD2200, Main: B.LT716B 8497, Flash: MX25L4005, EEPROM: 24C32, Panel: LTM220MT05
The appearance of the MainBoard B.TD701B-1 is shown in the figure below:MainBoard B.TD701B-1 includes a TDA15021H processor, NT68565FC scaler, Submicom: NT68F631ALG, SPI FLASH 520Kb and EEPROM 2416.
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.TD701B-1 can be used in TVs:
HYUNDAI LCDVD2200 (Panel LM220WE1), HYUNDAI H-LCD2202 (Panel HT150X02-100).
Main features of the HYUNDAI LCDVD2200 device:
Installed matrix (LCD-panel) LM220WE1.
A converter controlled by the TL494L PWM controller is used to power the backlight.
The required supply voltage for all nodes of the TV HYUNDAI LCDVD2200 provides a switching power supply.
MainBoard - the main board (motherboard) is a B.TD701B-1 module using PCU chips: TDA15021H / N1C00, Scaler: NT68565FC, Submicom: NT68F631ALG, EEPROM: 24C16, Sound: TDA1517 and others.
The TDQ-6f6 / T126CW tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG Display
Model: LM220WE1-TLP2
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
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC)
Frequency: 60Hz
Lamp Type: 2 pcs CCFL
Signal Interface: LVDS (2 ch, 8-bit)
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!