Technical description and composition of the TV SHARP LC-32WD1RU, type of panel and applicable modules. The composition of the modules.SHARP
Model: LC-32WD1RU
Panel: LK315T3LZ5AZ
T-CON: CPWBX3547TPZ A - 6Z-A068526 U
Inverter (backlight): RDENC2299 - RDENC2299TPZZ (60) - QKITF0169SNP2
PWM Inverter: BD9883
Power Supply (PSU): FSP289-5E01 - 3BS0155712GP
PWM Power: NCP1230D6
MainBoard: PCB000223 G - ELEC1F-03B
IC MainBoard: TDA15134E / N1A04, PNX5010E / M1, TDA9975AEL / 1022, 24C32
Tuner: TD1318AF / IVP-3
Control: GA574WJSA
Technical Specifications LC-32WD1RU
SHARP LC-32WD1RU
General recommendations for repairing TV LCD
TV SHARP LC-32WD1RU, like any other, it is advisable to start repairing it by inspecting the internal and external visible physical visual changes. In some cases, visible external damage to the elements can suggest directions for troubleshooting and localizing the defect before starting the necessary measurements at the control points of the nodes of electronic circuits. Elements with visible damage, for example, capacitors swelled up after boiling the electrolyte, charred resistors in certain nodes of the circuit, as well as ring cracks in solders will help the master to guess the causes and possible consequences of the malfunction.
Faults in the FSP289-5E01 power supply module can be expressed in different ways, for example, the SHARP LC-32WD1RU does not turn on at all and the control lights on its front panel do not light up and do not blink, and there are no signs of operability. The diagnostics of the power supply should always be started by checking the fuse and, if it is broken, it is first necessary to check the rectifier bridge diodes and the power switch for the likelihood of an avalanche or thermal breakdown.
It should be borne in mind that in the repair practice it is extremely rare that key transistors of the N-FET type fail for no reason that should be looked for by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, either dried electrolytic capacitors or dangling resistors of the primary circuit of the PSU, involved in the stabilization process. In this case, all semiconductor elements of the strapping of the PWM controller chip are subject to verification, which it is desirable to verify by replacement.
If an active Power Factor Corrector (PFC) is used in the power module circuitry, it is sometimes more difficult to troubleshoot. Knowledge, experience, intuition and skills in such cases have a great advantage for a successful repair.
If the SHARP LC-32WD1RU does not have an image, but there is sound, there is a possibility of a malfunction of the backlight or power converter. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working.
Diagnosis and repair of the inverter is often complicated by the organization of special protection circuits, which is necessary for fire safety and turns off the inverter in any emergency situation, for example, when the lamps are worn or depressurized. Often, to localize a defect, its blocking is required.
In such cases, the risk of failure of the power elements of the inverter is most likely, and special care is required during work, and after their completion, it is necessary to restore the protection circuit for further safe operation of the TV by the owner in normal mode.
We recommend the owners of the LC-32WD1RU TV for repair only to qualified specialists with experience! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!
1. Service Manual with Schematic Diagram 156 pages 2007 models LC-32WD1E, LC-32WT1E, LC-32WD1S, LC-32WD1RU.
2. Service Manual with Schematic Diagram 202 pages 2007 FOR the model LC-32WD1E, LC-32WD1S, LC-32WD1RU, LC-37WD1E, LC-37WD1S, LC-37WD1RU, LC-42WD1RU, LC-42WD1S, LC-42WD1E, LC-32WT1E, LC-37WT1E, LC-42WT1E.
Service manual / schematic diagram -------------------> Sharp LC-32WD1E, LC-32WT1E, LC-32WD1S, LC-32WD1RU
The appearance of MainBoard PCB000223 is shown in the figure below:PCB000223
PCB000223 can be used in TVs:
SHARP LC-32WD1RU (Panel LK315T3LZ5AZ), SHARP LC-37WD1RU (Panel LK370T3LZ6AZ), SHARP LC-42WD1RU (Panel T420XW01 V.7).
The appearance of the power supply
Main features of the SHARP LC-32WD1RU device:
Installed matrix (LCD panel) LK315T3LZ5AZ.
The matrix control uses the Timing Controller (T-CON) CPWBX3547TPZ.
The RDENC2299 inverter is used to power the backlight, controlled by the BD9883 PWM controller.
The necessary supply voltages for all nodes of the SHARP LC-32WD1RU TV are generated by the power module FSP289-5E01, or its analogs using NCP1230D6 microcircuits.
MainBoard - the main board (motherboard) is a PCB000223 module, using TDA15134E / N1A04, PNX5010E / M1, TDA9975AEL / 1022, 24C32 and others.
The TD1318AF / IVP-3 tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: SHARP
Model: LK315T3LZ5AZ
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: ASV, Normally Black
Active Area: 697.68x392.26 mm
LCD TV SHARP LC-32WD1RU with LCD LK315T3LZ5AZ, diagonal size 32 "(81 cm) in 16: 9 format. The brightness of the screen is 450 cd / m² by CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, not less than 1200: 1. Dynamic contrast ratio of 3000: 1 is achieved by controlling the backlight, depending on the brightness of the plot.
You can view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i.
The power of the sound speaker system 20 W (2x10 W) provide 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 x4, S-Video, component, SCART x2, RGB, VGA, HDMI x2. 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 DVB-T standards.
The power consumed by the TV from the network in operating mode is 136 watts.
Overall dimensions: with stand 796x588x243 mm, without stand 796x531x110 mm.
TV mass: with stand: 19 kg, without stand: 17 kg.
Attention! The LK315T3LZ5AZ panel of the SHARP LC-32WD1RU 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!