Technical description and composition of the HYUNDAI H-LCD2418 TV, panel type and applicable modules. The composition of the modules.Hyundai
Model: H-LCD2418
Chassis / Version: LS07
Panel: M236MWF1
Inverter (backlight): integrated into PSU; 800V, 7.7mA
PWM Inverter: 0Z9938GN
MOSFET Inverter: TPC8213-H 2 x Dual N-Fet 60V 5A 40Ω
Trans Inverter: CAY-T-6088A
Power Supply (PSU): R-HS050L-3HF01
PWM Power: NCP1271A
MOSFET Power: FQPF7N65C
MainBoard: JUG7.820.699-4 LS07 MAIN_PCB
IC MainBoard: TSUMV26KE-LF, 25Q40T, 24LC32, SA7454,
Tuner: CDT-3LS4I-00
Technical Specifications H-LCD2418
HYUNDAI H-LCD2418
General recommendations for repairing TV LCD
Possible manifestations of defects
- The HYUNDAI H-LCD2418 TV does not turn on. There are no signs of operability. The indicators on the front panel do not shine and do not blink, and the remote control and control buttons do not respond.
Failure in such cases should be sought in the power supply circuits R-HS050L-3HF01. It is necessary to measure the output voltages in the secondary circuits, and if they are absent, check the operability of the power switch (FQPF7N65C) of the converter and rectifier diodes for possible breakdown (short circuit).
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during a short circuit in the elements of the primary circuit, the mains fuse usually breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, power supply, frequency-setting, damper ... as well as elements of the Negative Stabilization Feedback. The NCP1271A PWM chip (PWM) can also cause a malfunction of the power switch of the converter and is checked by replacement.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
These manifestations can be triggered by the power supply module, or by inverter defects, as well as distortion of the currents in the lamps due to their uneven wear. After checking all the electrolytic capacitors of the filters that are involved in the power supply of the inverter, it is necessary to ring in its converter the power switches for breakdown and the secondary windings of the transformers for an open.
Sometimes, for diagnostic purposes, inverter protection must be disabled. In such cases, special care must be taken during work, and the protection circuit should be restored immediately after the repair is completed.
- The TV does not turn on, the indicator indicates standby or operating mode, or blinks.
Repair or diagnostics of the JUG7.820.699-4 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). 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 - TSUMV26KE-LF, 25Q40T, 24LC32, SA7454, and replace 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.
If the TV works normally from external devices, but does not tune into television channels, the tuner CDT-3LS4I-00 may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding conclusions. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
Once again, remind users! Attempts to self-repair a HYUNDAI H-LCD2418 TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!
The appearance of the MainBoard JUG7.820.699-4 is shown in the figure below:
JUG7.820.699-4
JUG7.820.699-4 can be used on TVs:
HYUNDAI H-LCD2418 (Panel M236MWF1), HYUNDAI H-LCD2218 (Panel M216H1-L01 Rev.C1), SUPRA STV-LC2214W (Panel LTA216AT01), SUPRA STV-LC1914WD (Panel HT185WX1-501), SUPRA STV-LC2214WD (Panel LTA216AT01), SUPRA STV-LC2414F (Panel M236MWF1), SUPRA STV-LC2414FD (Panel M236MWF1).
Main features of the device HYUNDAI H-LCD2418:
The matrix (LCD panel) M236MWF1 is installed.
To power the backlight, a converter is used, combined with a power supply, controlled by a PWM controller 0Z9938GN. The transformer CAY-T-6088A is installed in the inverter converter. Keys of the type TPC8213-H 2 x Dual N-Fet 60V 5A 40Ω are used as power elements of the inverter.
The necessary supply voltages for all nodes of the HYUNDAI H-LCD2418 TV are generated by the power module R-HS050L-3HF01, or its analogs using NCP1271A microcircuits and power switches of the FQPF7N65C type.
MainBoard - the main board (motherboard) is a JUG7.820.699-4 module, using TSUMV26KE-LF, 25Q40T, 24LC32, SA7454, and others.
The tuner CDT-3LS4I-00 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: IVO
Model: M236MWF1 R0
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, Hard coating (3H)
Brightness: 300 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: 4 pcs CCFL Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
HYUNDAI H-LCD2418 TV with an M236MWF1 LCD display, diagonal size 24 "(61 cm) in 16: 9 format. Screen brightness of 300 cd / m² is ensured by backlighting with CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 1000: 1. The design and technical capabilities of the TV include watching broadcasts and films in high quality HD with a resolution of 1920x1080 pixels in graphic decomposition according to the standard 1080p (Full HD). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphically Digital signal processing and generation takes place in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p.
The power of the sound system 4 W (2x2 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 x3, component, 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.
Overall dimensions: 577x414x174 mm.
The mass of the TV: 7.2 kg.
Attention! The M236MWF1 panel of the HYUNDAI H-LCD2418 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!
