Technical description and composition of the TV SHARP LC-55SFE7332E, type of panel and applicable modules. The composition of the modules.SHARP LED
Model: LC-55SFE7332E
Chassis / Version: T.MS6308.711
Panel: LC550DUY (SH) (P1)
LED backlight: Direct LED
T-CON: 6870C-0532B
LED driver (backlight): integrated into PSU
Power Supply (PSU): MIP550D-DX2
MainBoard: T.MS6308.711
IC MainBoard: NAND: H27U2G8F2CTR, Audio: TPA3110LD2
Tuner: XF-3SDT-H
Technical Specifications LC-55SFE7332E
SHARP LC-55SFE7332E
General repair guidelines for TV LCD LED
Possible manifestations of defects
- SHARP LC-55SFE7332E does not turn on, does not respond to buttons and remote control, indicators on the front panel do not light up and do not blink.
In some of these cases, a malfunction is detected in the MIP550D-DX2 power module. It is necessary to verify the presence of its output voltages and, if they are completely absent, check the power switches and rectifier diodes for a probable short circuit.
In case of diode breakdowns in the secondary circuits, the converter can operate in emergency short-circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key usually breaks.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode, or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM controllers, in the absence of visible damage or frank short-circuit between the terminals, are checked by replacing with new, or obviously working.
- There is no image, but there is sound and all other functions work. Sometimes when you turn on the image for a second appears and disappears.
As a rule, in this case, the LED backlight turns out to be faulty. The reason may be a break in the LEDs, in the stabilization of their power supply, or in the violation of the contact connections of the thong connectors,
When trying to detect a break in the LED lines, it should be taken into account that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the T.MS6308.711 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). If it is not possible to replace the MB (SSB) card, you need to check the health of its elements - NAND: H27U2G8F2CTR, Audio: TPA3110LD2. Defective components should be replaced.
If the TV works normally from external devices, but does not tune into television channels, the tuner XF-3SDT-H 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.
Attention! For users and owners of LC-55SFE7332E TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.
The appearance of MainBoard T.MS6308.711 is shown in the figure below:T.MS6308.711
Main features of the SHARP LC-55SFE7332E device:
Installed matrix (LED-panel) LC550DUY (SH) (P1).
The matrix control uses the Timing Controller (T-CON) 6870C-0532B.
To power the backlight LEDs, a converter is used, combined with a power supply.
The formation of the necessary supply voltages for all nodes of the SHARP LC-55SFE7332E TV is carried out by the MIP550D-DX2 power module, or its analogues.
MainBoard - the main board (motherboard) is a T.MS6308.711 module, using NAND chips: H27U2G8F2CTR, Audio: TPA3110LD2 and others.
The XF-3SDT-H tuner allows you to receive television programs and tune to channels.
LED TV SHARP LC-55SFE7332E with LCD LC550DUY, diagonal size 55 "(140 cm) 16: 9 format. The brightness of the screen 300 cd / m² is provided by LED (LED) backlight. Dynamic contrast ratio of 1,000,000: 1 is achieved by controlling the LEDs (LED) depending on the brightness of the plot.The LCD panel uses direct illumination with the rear LEDs (relative to the screen) Direct 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-55SFE7332E 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, DivX, MKV, JPEG. Stereo sound is realized by two built-in 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 x2, component, SCART, VGA, HDMI x3, MHL, USB x2, Ethernet (RJ-45), Wi-Fi WiDi, Miracast. 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.
The digital tuner is capable of receiving television channels in the standards DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2.
The power consumed by the TV from the network in operating mode is 150 watts.
Overall dimensions: with stand 1237x750x224 mm, without stand 1237x726x68 mm.
TV Weight: with stand: 14.7 kg, without stand: 14.4 kg.
Attention! The LC550DUY (SH) (P1) panel of the SHARP LC-55SFE7332E 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.