Technical description and composition of the HYUNDAI H-LCD2400 TV, panel type and applicable modules. The composition of the modules.Hyundai
Model: H-LCD2400
Chassis / Version: B.LT716B 8497
Panel: M236H1-L08 REV.C1
MainBoard: B.LT716B 8497
IC MainBoard: FLASH: MX25L4005
Tuner: TDQ-6f6 / T126CW
Technical Specifications H-LCD2400
HYUNDAI H-LCD2400
General recommendations for repairing TV LCD
HYUNDAI fault diagnosis and repair with B.LT716B 8497 chassis, as well as other electronic devices, is recommended to start with an external examination of the external and internal elements. In some cases, visible external damage to the elements can suggest the direction of troubleshooting and localization of the defect even before the start of the necessary measurements at the control points of the nodes of electronic circuits. 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-LCD2400 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.
Power switches in pulsed power supplies (SMPS) fail extremely rarely for no reason and, if they are broken, it is necessary to look for a malfunction in the stabilization circuits by checking electrolytic capacitors, semiconductor devices, and resistors in the primary circuit. The cause may be a malfunction of the PWM controller chip, which can only be checked by replacing it with a new or obviously working one.
In cases where the HYUNDAI H-LCD2400 TV has lost an image, and the sound is there and all other functions are operational, there is a possibility of an inverter (converter for powering the backlight) malfunction. When you turn on the TV, the image may appear briefly and immediately disappear. It must be borne in mind that with such manifestations, the lamps themselves also fail, the malfunction of which can be detected by replacement, by connecting to the connectors for diagnostics that are known to be serviceable and suitable in power. If in diagnosing a malfunction, it is necessary to disable the inverter protection, there is a risk of failure of the power elements of the inverter, and special care is required during work, and after they are finished, it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
If the motherboard B.LT716B 8497 is faulty, first of all it is necessary to check all the linear stabilizers or power converters of its chips, and also, if necessary, update the software. Sometimes you can check the health of MB only by replacement. Board repair and chip replacement FLASH: MX25L4005 are made with the necessary equipment, and the corresponding element base. Faults associated with the application of BGA processor soldering technologies can be localized by the heating method.
Owners and users of the HYUNDAI H-LCD2400 TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
FIRMWARE FOR SPI FLASH -----------> HYUNDAI H-LCD2400, Main: B.LT716B 8497, Panel: M236H1-L08 REV.C1
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 begin repairing 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 device HYUNDAI H-LCD2400:
Installed matrix (LCD panel) M236H1-L08 REV.C1.
The required supply voltage for all nodes of the HYUNDAI H-LCD2400 TV provides a switching power supply.
MainBoard - the main board (motherboard) is a B.LT716B module, using FLASH chips: MX25L4005 and others.
The TDQ-6f6 / T126CW tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: CMO
Model: M236H1-L08
Type: a-Si TFT-LCD, Panel
Diagonal size: 23.6 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 521.28x293.22 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 350 cd / m²
Contrast Ratio: 1100: 1
Display Colors: 16.7M (8-bit)
Response Time: 1.5 / 3.5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
HYUNDAI H-LCD2400 TV with M236H1-L08 LCD, 24 "diagonal size of 16: 9 format. Screen brightness of 300 cd / m² is provided by CCFL (EEFL) fluorescent lamps. Contrast ratio as the ratio of maximum brightness to minimum is 1000 : 1. The design and technical capabilities of the TV provide for viewing broadcasts and films in high quality HD at a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD). The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic Digital signal processing and generation takes place in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p.
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, S-Video, SCART, 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, 1360x768, 1920x1080.
The power consumed by the TV in the operating mode from the network is 60 watts.
Overall dimensions: 580x440x210 mm.
TV Weight: 7 kg.
Attention! The M236H1-L08 REV.C1 panel of the HYUNDAI H-LCD2400 LCD TV is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!