Technical description and composition of the HYUNDAI H-LCD3218 TV, panel type and applicable modules. The composition of the modules.Hyundai
Model: H-LCD3218
Chassis / Version: LS06
Panel: LTA320AP02
T-CON: 320AP03C2LV0.1; LMX6322T1, EM638325TS-7G, TPS65160A, AG32AE2
Inverter (backlight): SSI320_4UA01
PWM Inverter: OZ9966SN
MOSFET Inverter: STU432S, KMB054N40DB
Trans Inverter: LT-U3208
Power Supply (PSU): MP116 -C RVE: 1.1 MEGMEET
PWM Power: NCP1606B, L6599D, OB2263
MainBoard: JUG7.820.768-1
IC MainBoard: 25Q16
Tuner: CDT-3LC4I1-00
Technical Specifications H-LCD3218
HYUNDAI H-LCD3218
General recommendations for repairing TV LCD
Possible malfunctions
- The HYUNDAI H-LCD3218 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.
With such manifestations, in most cases, the MP116 power module is faulty. It is necessary to measure the secondary output voltages, and if they are absent, check the operability of the power switches of the converters and rectifier diodes for a short circuit probability.
In the event of breakdowns in the secondary circuits, the converter may emergencyly operate in the short circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse usually breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke an excess of the maximum current or voltage. It can be supply, damper circuits, or elements of OOS (negative feedback) stabilization. The reason for the breakdown of the power key may be PWM (PWM) NCP1606B, L6599D, OB2263. It is checked only by replacement with a known good one.
- There is no image, there is sound, it is responding to the remote control. Or immediately after turning on for a second, the image may appear and immediately disappear.
These manifestations can be triggered by a power module, or by defects in the inverter, as well as a distortion of the currents in the lamps due to their uneven wear. If all the electrolytic capacitors of the filter according to the inverter power supply are serviceable, you should make sure that the lamps are in good working condition, then you need to check the converter keys and the secondary windings of the transformers.
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.
- The TV does not turn on, the indicator indicates standby or operating mode, or blinks.
Repair or diagnostics of the JUG7.820.768-1 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). Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Testing or replacing elements 25Q16 requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can sometimes be diagnosed by warming up.
Before changing the tuner CDT-3LC4I1-00, if it is not possible to tune to television channels, make sure that there are supply voltages, which must be measured at the corresponding outputs of the tuner and checked for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
Attention to users! Self-repair of the HYUNDAI H-LCD3218 TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!
SCHEMATIC DIAGRAM / SERVICE MANUAL Power Supply ------------------> MP116
The appearance of the MainBoard JUG7.820.768-1 is shown in the figure below:JUG7.820.768-1
The appearance of the power supply
Main features of the device HYUNDAI H-LCD3218:
Installed matrix (LCD-panel) LTA320AP02.
The matrix control uses the Timing Controller (T-CON) 320AP03C2LV0.1 ;.
To power the backlight, an SSI320_4UA01 inverter is used, controlled by the OZ9966SN PWM controller. A transformer LT-U3208 is installed in the inverter converter. As power elements of the inverter, keys of the STU432S, KMB054N40DB type are used.
The necessary supply voltages for all nodes of the HYUNDAI H-LCD3218 TV are generated by the MP116 power module or its analogs using NCP1606B, L6599D, OB2263 microcircuits.
MainBoard - the main board (motherboard) is a JUG7.820.768-1 module, using 25Q16 chips and others.
The tuner CDT-3LC4I1-00 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA320AP02
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: PVA, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare (Haze 7%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 5000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
HYUNDAI H-LCD3218 TV with an LTA320AP02 LCD display, 32 "(81 cm) diagonal size 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 1200: 1. It is possible to view images in high quality HD at a resolution of 1366x768 pixels in the standard for 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 st ndartah 480i, 480p, 576i, 576p, 720p.
The power of the sound system 10 W (2x5 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, S-Video, component, VGA. 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: 885x680x180 mm.
TV Weight: 15 kg.
Attention! The HYUNDAI H-LCD3218 LCD TV panel LTA320AP02 is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!
