Technical description and composition of the TV SHARP LC-52LE830E, type of panel and applicable modules. The composition of the modules.SHARP LED
Model: LC-52LE830E LC-52LE830RU
Panel: LK520D3GW4BY
T-CON: RUNTK4909TPYX
LED driver (backlight): RUNTKA795WJQZ
Power Supply (PSU): RUNTKA795WJQZ
PWM Power: TNY246PN (7)
MainBoard: DKEYDF733FM51
Control: GA902WJSA
Technical Specifications LC-52LE830
SHARP LC-52LE830E
General repair guidelines for TV LCD LED
Repair of all electronic devices, including the SHARP LC-52LE830E, LC-52LE830RU TV, it is advisable to start with an external examination of its external and internal elements. Often, based on certain external signs, it may be possible to draw certain conclusions about the reasons for the failure of certain elements of the circuit even before the necessary measurements are made, which will determine the further algorithm for troubleshooting and localizing the defect. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
If the LC-52LE830E TV does not turn on, does not make any sounds when it is turned on, and also no indicators on the front panel light or blink - there is a high probability of a malfunction in the power module. In some cases, only the stabilizer or power converter of the control processor may be faulty, which is typical for some SHARP models. When diagnosing and repairing the power supply, first of all, replace the swollen capacitors of the filter of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module — rectifier diodes and transistors in the primary circuit.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is verified by replacing it with a known good one.
If the SHARP LC-52LE830E TV does not have an image, but there is sound, a malfunction in the LED backlight circuits of the LK520D3GW4BY panel is likely. It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the BP (power supply) for an overstated ESR.
To check the health of the LEDs and contact connections in their power circuit, the panel must be disassembled.
It is impossible to detect a break in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and to open their transitions, a voltage of several tens of volts is required. Ideally, a current source is suitable for such purposes.
Diagnosis and repair of the DKEYDF733FM51 motherboard is carried out by checking the performance of the stabilizers or power converters of the module chips. In some cases, a software update is required.
Attention to users! Self-repair of a TV SHARP LC-52LE830E without the appropriate qualifications and experience can lead to its complete non-repairability!
schematic / service manual ------------------> SHARP LC-52LE830E , LC-52LE830RU.
Sharp LC-52LE830E, LC-52LE830RU, LC-60LE830E, LC-60LE830RU, LC-52LE831E, LC-52LE831S, LC-60LE831E, LC-60LE831S, LC-52LE833E, LC-60LE833E, LC-52LE830EB, LC-52LE830RUB, LC-60LE830EB, LC-60LE830RUB, LC-52LE831EB, LC-52LE831SB, LC-60LE831EB, LC-60LE831SB, LC-52LE833EB, LC-60LE833EB, LC-60LE635E, LC-60LE635RU, LC-60LE636E, LC-60LE636S, LC-60LE638E
1. Service Manual with Schematic Diagram 226 pages 2011 on models LC-52LE830E, LC-52LE830RU, LC-60LE830E, LC-60LE830RU, LC-52LE831E, LC-52LE831S, LC-60LE831E, LC-60LE831S, LC-52LE833E, LC-60LE833E.
2. Service Manual with Schematic Diagram 54 pages of 2011 on the LC-60LE831U, LC-40LE835U, LC-46LE835U, LC-52LE835U, LC-60LE835U, LC-40LE830U, LC-46LE830U, LC-52LE830U, LC-60LE830U, LC-40LE832U, LC-46LE832U, LC-52LE832U, LC-60LE832U.
Main features of the SHARP LC-52LE830E device:Installed matrix (LED panel) LK520D3GW4BY.
The matrix control uses the Timing Controller (T-CON) RUNTK4909TPYX.
The LED driver RUNTKA795WJQZ is used to power the backlight LEDs.
The necessary supply voltages for all nodes of the SHARP LC-52LE830E TV are generated by the RUNTKA795WJQZ power supply module or its analogs using TNY246PN microcircuits (7).
MainBoard - the main board (motherboard) is a DKEYDF733FM51 module.
LED TV SHARP LC-52LE830 with LCD LK520D3GW4BY, diagonal size 52 "(132 cm) in 16: 9 format. Dynamic contrast ratio of 8000000: 1 is achieved by controlling the operation of LEDs (LED) depending on the brightness of the plot. This model uses backlight with the end position of the LEDs (relative to the screen) - Edge LED.
There is support for 3D images with active (shutter) technology for separating the right and left channels.
The design and technical capabilities of the TV include watching programs and movies in high quality HD at a resolution of 1920x1080 pixels in a graphical decomposition according to the standard 1080p (Full HD).
The LC-52LE830 TV is equipped with SMART software, as well as the ability to work with applications and on the Internet. Connecting to a network can be done via Wi-Fi. The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p.
Supported media file formats: MP3, WMA, MPEG4, Xvid, DivX, MKV, JPEG.
The power of the acoustic system of sound 35 W (2x10 + 15 W) provide 3 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, audio x3, component, SCART, RGB, VGA, HDMI x4, USB x3, RS-232, Ethernet (RJ-45) Wi-fi. 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, 1280x1024, 1360x768, 1920x1080.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-S2 standards.
The power consumed by the TV from the network in operating mode is 162 watts.
Overall dimensions: with stand 1206x787x298 mm, without stand 1206x738x34 mm.
TV mass: with stand: 28 kg, without stand: 24 kg.
Attention! The LK520D3GW4BY panel of the SHARP LC-52LE830 LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.
