Technical description and composition of the TV SHARP LC-32LE700RU, type of panel and applicable modules. The composition of the modules.SHARP LED
Model: LC-32LE700RU
Panel: SHARP
T-CON: RUNTK4225TP
LED driver (backlight): RUNTKA619WJQZ
Power Supply (PSU): RUNTKA619WJQZ
MainBoard: DUNTK306 (QPWBXF306WJ)
Technical Specifications LC-32LE700
SHARP LC-32LE700RU
General repair guidelines for TV LCD LED
It is advisable to start repairing the SHARP LC-32LE700RU TV with a careful external examination of both internal and external elements. Many visible changes in the state of the elements make it possible to determine the further direction of troubleshooting and localization of the defect. If charred resistors, swollen electrolytic or cermet capacitors, ring cracks in the solders of the terminals of transformers or heating elements are found, it is advisable to establish the causes and consequences of the malfunction that has arisen, as well as to check the connected elements and assemblies.
Sometimes the SHARP LC-32LE700RU TV simply does not turn on. No control lights on the front panel are lit or blinking, the TV does not respond to the remote control and does not make any sounds or any signs of life when turned on. The most likely cause of the malfunction is the failure of the RUNTKA619WJQZ common power module. If it is working properly, you need to check the processor batteries on the SSB (Main Board). When repairing the power supply, it is advisable to start the diagnostics by checking the mains fuse and the electrolytic capacitors of the filters of the converter secondary rectifiers. In the event of a fuse breaking, the reason should be sought in the power semiconductor elements of the pulse converter of the main power supply. First of all, it is necessary to check the diodes of the bridge of the rectifier of the mains voltage and the power switch (s) of the converter.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself for no reason that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If the SHARP LC-32LE700RU does not have an image, there is sound and the channels are switched, there is a possibility of a malfunction in the circuit of the SHARP backlight LEDs, or their power converter - LED drivers. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the LED driver itself, including in the secondary rectifier of the main PSU.
Often in the absence of backlighting, disassembling the panel is required. It is necessary to check the serviceability of the transitions of the LEDs, as well as the reliability of the contact connections in the rulers and connectors.
A break in the line of LEDs connected in series cannot be detected with a multimeter or tester without disassembling the panel. To open all the transitions, several tens of volts are needed, and it is best to use a current source for such purposes.
If the DUNTK306 motherboard (QPWBXF306WJ) is faulty, first of all it is necessary to check all the linear stabilizers or power converters of its chips, and also, if necessary, update the software. Sometimes you can check the health of MB only by replacement.
Attention to users! Self-repair of the SHARP LC-32LE700RU TV without the appropriate qualifications and experience can lead to its complete non-repairability!
Service manual / schematic diagram -----------> Sharp LC-32LE700E, LC-32LE700RU, LC-32LE700S, LC-32LU700E, LC-32LU700S, LC-32LX700E, LC-32LX700RU, LC-40LE700E, LC-40LE700RU, LC-40LE700S, LC-40LU700E, LC-40LU700S, LC-40LX700E, LC-40LX700RU, LC-46LE700E, LC-46LE700RU, LC-46LE700S, LC-46LU700E, LC-46LU700S, LC-46LX700E, LC-46LX700RU, LC-52LE700E, LC-52LE700RU, LC-52LE700S
Service Manual with Schematic Diagram 164 pages of 2009 FOR the LC-32LE700E, LC-32LE700RU, LC-32LE700S, LC-32LU700E, LC-32LU700S, LC-32LX700E, LC-32LX700RU, LC-40LE700E, LC-40LE700RU, LC- 40LE700S, LC-40LU700E, LC-40LU700S, LC-40LX700E, LC-40LX700RU, LC-46LE700E, LC-46LE700RU, LC-46LE700ES, LC-46LU700E, LC-46LU700S, LC-46LX700E, LC-46L, 5200, LC-46LX00L LC-52LE700RU, LC-52LE700S.
Main features of the SHARP LC-32LE700RU device:
Installed matrix (LED-panel) SHARP.
The matrix control uses the Timing Controller (T-CON) RUNTK4225TP.
The LED driver RUNTKA619WJQZ is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the SHARP LC-32LE700RU TV is carried out by the RUNTKA619WJQZ power supply module, or its analogs.
MainBoard - the main board (motherboard) is a DUNTK306 module.
LED TV SHARP LC-32LE700 with LCD display R1LK315D3FZE0Y, diagonal size 32 "(81 cm) in 16: 9 format. The brightness of the screen is 450 cd / m² with LED backlighting. Dynamic contrast ratio of 2,000,000: 1 is achieved by controlling the LEDs (LED) depending on the brightness of the plot.In the manufacturing technology of the display of this model, LED (LED) backlighting is implemented.
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 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: JPEG.
The power of the sound system 20 W (2x10 W) provides 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, audio x3, component, SCART x2, RGB, VGA, HDMI x4, USB, RS-232. 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.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C standards.
The power consumed by the TV from the network in operating mode is 60 watts.
Overall dimensions: with stand 773x573x244 mm, without stand 773x528x103 mm.
TV mass: 13.5 kg.
Attention! The R1LK315D3FZE0Y panel of the SHARP LC-32LE700 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.
