Technical description and composition of the HYUNDAI H-LCD1917 TV, panel type and applicable modules. The composition of the modules.Hyundai
Model: H-LCD1917
Panel: CLAA215FA01
Inverter (backlight): 471R1006 467-0101-14101G
PWM Inverter: MP1007ES
MOSFET Inverter: SPN4526
Trans Inverter: KTC401-8322-27411G
Power Supply (PSU): 465-01A2-18001G
PWM Power: LD7575B (PWM flyback)
MOSFET Power: SW7N65
MainBoard: 471-0102-22001G A2
IC MainBoard: W9412G6JH-4, EN25F16-100HIP, K24C64, FM24C02, HC4052, AOZ1071AI, IRC4558, SA7454
Tuner: F21WT-3BKR-E
Technical Specifications H-LCD1917
HYUNDAI H-LCD1917
General recommendations for repairing TV LCD
Possible malfunctions
- HYUNDAI H-LCD1917 does not turn on at all and does not show any signs of operability. Does not blink indicators and does not respond to control buttons.
With such manifestations, a malfunction is most likely to be detected in the 465-01A2-18001G power supply module. In the absence of the necessary supply voltages in the secondary circuits of the converters, it is first necessary to check the power switches (SW7N65) and rectifier diodes for a possible partial or complete breakdown.
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 switch may be PWM (PWM) LD7575B (PWM flyback). 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.
The defect can be caused by problems in the nodes or elements of the backlight of the display, or in the power supply of the lamps or the inverter.After checking all the electrolytic capacitors of the filters that are involved in the power supply to the inverter, you must ring in its converter power keys for breakdown and secondary windings of 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 indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the 471-0102-22001G 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). In cases of attempts to repair the MB (SSB) board, it is necessary to check the health of its elements - W9412G6JH-4, EN25F16-100HIP, K24C64, FM24C02, HC4052, AOZ1071AI, IRC4558, SA7454 which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).
If the TV works normally from external devices, but does not tune into television channels, the tuner F21WT-3BKR-E 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, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Entrust repair to professionals with sufficient experience in the field of repair of electronic equipment.
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> 465-01A2-18001G Power supply
The appearance of MainBoard 471-0102-22001G is shown in the figure below:471-0102-22001G
The appearance of the power supply
Main features of the HYUNDAI H-LCD1917 device:
Installed matrix (LCD panel) CLAA215FA01.
The 471R1006 inverter is used to power the backlight, controlled by the MP1007ES PWM controller. A transformer KTC401-8322-27411G is installed in the inverter converter. As power elements of the inverter, keys of the SPN4526 type are used.
The necessary supply voltages for all nodes of the HYUNDAI H-LCD1917 TV are generated by the 465-01A2-18001G power supply module or its analogs using LD7575B (PWM flyback) microchips and power switches of the SW7N65 type.
MainBoard - the main board (motherboard) is a module 471-0102-22001G, using microchips W9412G6JH-4, EN25F16-100HIP, K24C64, FM24C02, HC4052, AOZ1071AI, IRC4558, SA7454 and others.
The F21WT-3BKR-E tuner provides TV reception and channel tuning.
Information from an alternative source:
HYUNDAI H-LCD1917
Panel Type (Matrix): CLAA215FA01
Motherboard: 471-0102-22001G A2, W9412G6JH-4, EN25F16-100HIP, K24C64, FM24C02 x2, HC4052, AOZ1071AI, IRC4558, SA7454, Tuner: F21WT-3BKR-E.
Invertor: 471R1006 467-0101-14101G, MP1007ES, SPN4526, SPP9527, Tr-r: KTC401-8322-27411G
PSU: 465-01A2-18001G, LD7575B, SW7N65 PSU schematic
Additional technical information about the panel:
Brand: CPT
Model: CLAA215FA01A
Type: a-Si TFT-LCD, Panel
Diagonal size: 21.5 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 476.64x268.11 mm
Surface: Glare (Haze 0%)
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-LCD1917 TV with CLAA215FA01 LCD, diagonal size 19 "(48 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. It is possible to 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. Graphic processing and digital signal generation takes place in st andarts 480i, 480p, 576i, 576p, 720p Supported media file formats: MP3, JPEG.
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 x2, audio x4, S-Video, component, VGA, HDMI x2, USB. 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.
The power consumed by the TV in the operating mode from the network is 45 watts.
Overall dimensions: without stand 453x330x70 mm.
TV mass: without stand: 4.5 kg.
Attention! The HYUNDAI H-LCD1917 LCD TV panel CLAA215FA01 is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!