Technical description and composition of the SONY KDL-52V4210 TV, panel type and applicable modules. The composition of the modules.SONY
Model: KDL-52V4210
Panel: LTY520HB10
T-CON: FS_HBC2LV2.4
Inverter (backlight): SSB520H24S01 (LL) + SSB520H24S01 (LU) + SSB520H24S01 (RL) + SSB520H24S01 (RU)
Power Supply (PSU): 1-876-290-12 + 1-876-294-11 (172959511) + 1-876-447-11 (172964611)
MainBoard: 1-877-114-11 - A-1545-599-A
IC MainBoard: CPU: MB90F334A, NAND128W3A28N6, EEPROM: 24C32; RAM: HY825DC256160CE
Control: IR: 1-876-417-11 (A-1494-139-A)
Technical Specifications KDL-52V4210
SONY KDL-52V4210
General recommendations for repairing TV LCD
An external examination of the external and internal elements should be carried out in a timely manner before the start of operations for their dismantling. It often happens that visible damage to elements or connections helps determine the direction of the troubleshooting. Useful tips can include swollen capacitors, ring cracks formed in the soldered terminals, a charred paint layer on the resistors, signs of overheating of the board, and many other external signs that are familiar to experienced repairmen.
If the TV does not turn on, no control lights are on or blinking, there are no sounds when you turn on, and there is not the slightest sign of operability - the most likely malfunction is in the power module. In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
The reasons for the breakdown of the power switch in pulsed power supplies (IIPS) can be different, for example, a malfunction of semiconductor cells or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller chip or broken resistors in its bundle.
If the SONY KDL-52V4210 does not have an image, but there is sound and the TV is controlled from the remote control, a malfunction in the display backlight nodes is likely. The lamps or the power converter - inverter may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to verify the operability of the electrolytic capacitors of the rectifier filter supplying the inverter, and check the LCD lamps by connecting external and obviously serviceable for diagnosis to the connectors. It is necessary to take into account that in cases of inverter protection shutdown (in order to be able to diagnose) there is a risk of failure of the inverter power elements and take special care. After carrying out repairs, the protection circuit must be restored for further safe operation of the TV.
In cases of attempts to repair the motherboard 1-877-114-11 - A-1545-599-A, it is necessary to check the operability of the linear stabilizers and power converters of its microcircuits and, if possible, update the software (software). BGA chips can sometimes be diagnosed with local heating. In some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - CPU: MB90F334A, NAND128W3A28N6, EEPROM: 24C32; RAM: HY825DC256160CE for new or obviously working. In cases where BGA technologies are used, defects are usually localized by the heating method.
Owners and users of the SONY KDL-52V4210 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!
The appearance of MainBoard 1-877-114-11 is shown in the figure below:1-877-114-11
The appearance of the power supply
Main features of the device SONY KDL-52V4210:
Installed matrix (LCD panel) LTY520HB10.
The matrix control uses the Timing Controller (T-CON) FS_HBC2LV2.4.
To power the backlight used inverter SSB520H24S01 (LL).
The formation of the necessary supply voltages for all nodes of the SONY KDL-52V4210 TV is carried out by the power module 1-876-290-12, or its analogues.
MainBoard - the main board (motherboard) is a module 1-877-114-11, using CPU chips: MB90F334A, NAND128W3A28N6, EEPROM: 24C32; RAM: HY825DC256160CE and others.
SONY KDL-52V4210 TV with an LTY520HB10 LCD display, a diagonal size of 52 "(132 cm) in 16: 9 format. A screen brightness of 500 cd / m² is ensured by backlighting with CCFL (EEFL) fluorescent lamps. Dynamic contrast ratio of 33000: 1 is achieved by special control of operation backlight.
The LTY520HB10 panel and the motherboard software 1-877-114-11 provide for viewing HD and Full HD pictures at a resolution of 1920x1080 pixels in a graphical decomposition according to the 1080p standard (Full HD). The input analog video signal can be processed in PAL, SECAM, NTSC systems. Graphic processing and image formation of a digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p.
The power of the speaker system is 20 W (2x10 W). 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, audio x4, S-Video, component, SCART x2, RGB, VGA, HDMI x3. An output for connecting headphones is provided. To connect an analog computer or laptop to this TV model, a VGA (D-Sub 15) connector is used, which supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768.
The digital tuner is capable of receiving television channels in the DVB-T, DVB-C standards.
The power consumed by the TV in the operating mode from the network is 215 watts.
Overall dimensions: with stand 1262x871x347 mm, without stand 1262x829x119 mm.
TV mass: with stand: 38 kg, without stand: 32 kg.
Attention! The LTY520HB10 panel of the SONY KDL-52V4210 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!
