Technical description and composition of the SHARP LC-32LE320 TV, panel type and applicable modules. The composition of the modules.SHARP LED
Model: LC-32LE320 LC-32LE320RU
Panel: T315HW05 V1.0 M11TEA4846
LED backlight: WT-31T12001-RXD8X-X-2-06T
T-CON: 31T12-C04 T315HW05 V0 / V1 CTRL BD
LED driver (backlight): integrated into PSU
PWM LED driver: SG6961
MOSFET LED driver: TK12A10K3
Power Supply (PSU): 715G4065-P01-W20-003U
PWM Power: SG6961 (PFC), TNY277 (Stb), L6599D
MOSFET Power: TK12A60U, 2SK4096
MainBoard: 715G3805-M01-000-005X
IC MainBoard: CPU: MT5363, NAND Flash: HY27US08281A-TPCB, EEPROM: 24C32, AUDIO: TPA3110D2
Tuner: TDTW-S810D (M)
Technical Specifications LC-32LE320
SHARP LC-32LE320
General repair guidelines for TV LCD LED
Possible malfunctions
- The SHARP LC-32LE320 TV does not turn on at all. The control lights do not light or flash. The TV on the remote control and the control panel buttons do not respond.
Typically, with such manifestations, the defect is caused by faulty elements in the main power module 715G4065-P01-W20-003U. It is necessary to measure its output supply voltages, and in case of their absence, check the serviceability of power switches (TK12A60U, 2SK4096) of converters and rectifier diodes for the probability of breakdown in PN semiconductor junctions.
In the event of breakdowns in the secondary circuits of the converter, it can usually fail in short circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse or current sensor at the source of the key most often breaks.
Breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback circuits (OOS) of stabilization. PWM controllers (PWM) SG6961 (PFC), TNY277 (Stb), L6599D, if they do not have visible damage to the case and open fault between the terminals, are usually checked by replacement.
- There is no image, there is sound, it responds to the remote control. Or the image may appear for a second when turned on and immediately disappears.
Often in such cases, there is no LED backlight. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
It is impossible to check the line of series-connected LEDs without a special current source, and for this purpose it is not safe to use any voltage sources above 12V. Then it remains only to open the panel and check each LED separately. Usually, Chinese 9V-powered multimeters light up a single 3-volt LED, if you connect the probes in the forward direction, the red probe to the anode, and the black to the cathode. In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of health. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- The TV does not enter the operating mode, does not respond to the remote control. The indicator on the front panel lights constantly or blinks.
Repair or diagnostics of the 715G3805-M01-000-005X motherboard should begin by checking the stabilizers and power converters needed to power the microcircuits and matrix. If necessary, update or replace the software (software). Board repair and replacement of CPU chips: MT5363, NAND Flash: HY27US08281A-TPCB, EEPROM: 24C32, AUDIO: TPA3110D2 are carried out with the necessary equipment, and the corresponding element base. Faults associated with the application of BGA processor soldering technologies can be localized by the heating method.
The TDTW-S810D (M) tuner malfunction is established after checking the software and all supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be controlled by an oscilloscope.
Attention TV owners! Attempts at self-repair of SHARP LC-32LE320 are not recommended by the manufacturer and can lead to serious negative consequences!
FIRMWARE NAND FLASH SHARP LC-32LE320 LC-32LE320RU-BK , Main: 715G3805-M01-000-005X.
Service manual / schematic diagram ---------------------> SHARP LC-32LE320
Service Manual with Schematic Diagram 336 pages 2010 FOR model LC-19LE320, LC-22LE320, LC-26LE320, LC-32LE320, LC-37LE320, LC-42LE320.
The appearance of the MainBoard 715G3805-M01-000-005X is shown in the figure below:715G3805-M01-000-005X
The appearance of the power supply
Main features of the SHARP LC-32LE320 device:
Installed matrix (LED panel) T315HW05 V1.0 M11TEA4846.
The matrix control uses the Timing Controller (T-CON) 31T12-C04.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the SG6961 PWM controller. As the power elements of the LED driver, keys of the TK12A10K3 type are used.
The necessary supply voltages for all nodes of the SHARP LC-32LE320 television are generated by the 715G4065-P01-W20-003U power module or its analogs using SG6961 (PFC), TNY277 (Stb), L6599D microcircuits and TK12A60U, 2SK4096 power switches.
MainBoard - the main board (motherboard) is a 715G3805-M01-000-005X module using CPU chips: MT5363, NAND Flash: HY27US08281A-TPCB, EEPROM: 24C32, AUDIO: TPA3110D2 and others.
The TDTW-S810D (M) tuner provides television reception and channel tuning.
LED TV SHARP LC-32LE320 with LCD T315HW05, diagonal size 32 "(81 cm) in 16: 9 format. The brightness of the screen is 450 cd / m² with LED backlighting. This model uses backlight with end-mounted LEDs (relative to the screen) - Edge LED.
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: MP3, MPEG4, DivX, MKV, JPEG.
The power of the sound system 20 W (2x10 W) provides two 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 x2, RGB, VGA, HDMI x3, 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, 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 76 watts.
Overall dimensions: with stand 787x536x239 mm, without stand 787x500x45 mm.
Mass of the TV: 10.1 kg.
Attention! The panel T315HW05 V1.0 M11TEA4846 LED-TV SHARP LC-32LE320 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.
