Technical description and composition of the HYUNDAI H-LCD4200 TV, panel type and applicable modules. The composition of the modules.HYUNDAI LED
Model: H-LCD4200
Chassis / Version: MST182VGV6.0-A
Panel: T400HW04 V.0 FHD
LED backlight: 74.40T05.001-3-SX1
T-CON: T315HW07 V6 CTRL BD 31T14-C08
LED driver (backlight): integrated into PSU; Voltage drive 178V
Power Supply (PSU): LED4605-SB5V REV2.23
MainBoard: MST182VGV6.0-A
IC MainBoard: EN25Q32B-104HIP, AIC2857F, PS331
Tuner: CDT-3SP5I2-36
Technical Specifications H-LCD4200
HYUNDAI H-LCD4200
General repair guidelines for TV LCD LED
Possible malfunctions
- HYUNDAI H-LCD4200 does not turn on, the indicators on the front panel do not light or flash. The TV does not respond to the control buttons and the remote control.
With such manifestations, the LED4605-SB5V power supply module usually fails. It is necessary to measure its output voltages, and in case of their absence, check the operability of the power switches of the converters and rectifier diodes for the probability of a short circuit.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in emergency short circuit mode without output voltages, and during short circuit in the elements of the primary circuit, the mains fuse and, less often, the current sensor at the source of the key are most often cut off.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM microcircuits are usually checked by replacement with new ones, or obviously working.
- There is no image, but there is sound and reaction to commands from the remote control. Or the image appears immediately after turning on and disappears.
As a rule, in such cases there is no display backlight. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
When diagnosing, it is necessary to take into account that it is impossible to check the open in the chain of LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally, a current source. By opening the panel, each LED can be checked separately. Typically, Chinese multimeters light up a single 3-volt LED, if you connect probes in the forward direction to it. In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of health. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- The indicator on the front panel blinks, the TV does not turn on in operating mode, it does not respond to the remote control.
Repair or diagnostics of the MST182VGV6.0-A motherboard should begin by checking the stabilizers and power converters needed to power the microcircuits and matrix. If necessary, update or replace the software (software). In some cases, to repair the MB board (SSB), it may be necessary to replace the chips - EN25Q32B-104HIP, AIC2857F, PS331 with new or obviously good ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
If you suspect a malfunction of the CDT-3SP5I2-36 tuner, first of all, you need to verify the correctness of the software, as well as the presence of the necessary voltage levels and pulses of data exchange with the processor via the I2C bus at the corresponding terminals of the tuner.
TV users and owners must remember that attempts to self-repair a HYUNDAI H-LCD4200 TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
FIRMWARE FOR SPI FLASH -----------> HYUNDAI H-LCD4200, Main: MST182VGV6.0-A, Panel: T400HW04 V.0 FHD
FIRMWARE FOR SPI FLASH -----------> Main: MST182VGV6.0-A, Panel: 1366x768 (HD)
The appearance of the MainBoard MST182VGV6.0-A is shown in the figure below:MST182VGV6.0-A
MST182VGV6.0-A can be used in TVs:
HYUNDAI H3260 (Panel T315XW07 V2), HYUNDAI H-LCD4200 (Panel T400HW04 V.0 FHD).
The appearance of the power supply
Main features of the device HYUNDAI H-LCD4200:
Installed matrix (LED-panel) T400HW04 V.0 FHD.
The matrix control uses the Timing Controller (T-CON) T315HW07.
To power the backlight LEDs, a converter is used, combined with a power supply.
The formation of the necessary supply voltages for all nodes of the HYUNDAI H-LCD4200 TV is carried out by the LED4605-SB5V power supply module, or its analogues.
MainBoard - the main board (motherboard) is a module MST182VGV6.0-A, using chips EN25Q32B-104HIP, AIC2857F, PS331 and others.
The tuner CDT-3SP5I2-36 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: AUO
Model: T400HW04 V0
Type: a-Si TFT-LCD, Panel
Diagonal size: 40 inch
Resolution: 1920x1080, FHD
Display Mode: AMVA3, Normally Black, Transmissive
Active Area: 885.6x498.15 mm
Surface: Antiglare (Haze 2%), Hard coating (3H)
Brightness: 400 cd / m²
Contrast Ratio: 4000: 1
Display Colors: 1.07B (10-bit), CIE1931 72%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: 2 strings WLED Without Driver
Signal Interface: LVDS (2 ch, 10-bit), 51 pins
Voltage: 12.0V
HYUNDAI H-LCD4200 TV with T400HW04 LCD display, diagonal size 42 "(106 cm) in 16: 9 format. 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 1600: 1. You can view images in high quality HD at a resolution of 1366x768 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.
The power of the sound speaker system 20 W (2x10 W) provide two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, RGB.
Overall dimensions: 1063x829x288 mm.
Attention! The HYUNDAI H-LCD4200 T400HW04 V.0 FHD LCD TV panel is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!
