Technical description and composition of the SHARP LC-52XD1E TV, type of panel and applicable modules. The composition of the modules.SHARP
Model: LC-52XD1E
Chassis / Version: KD915
Panel: 52 inch
T-CON: CPWBX3520TPZ
Inverter (backlight): RUNTKA 259WJZZ; 260WJZZ; 261WJZZ; 262WJZZ
Power Supply (PSU): CA204WJQZ
MainBoard: KD915 KD915WE01, KD604WE11, 89222441071
IC MainBoard: VGC5969B, SIL9023CTU, K4H561638H-UCB3, 24LC256, M29DW128F
Tuner: DUNTKD833WE
Technical Specifications LC-52XD1RU
SHARP LC-52XD1E
General recommendations for repairing TV LCD
Repair SHARP LC-52XD1E must begin with the diagnosis of the malfunction and a thorough inspection of its external and internal components, including those of the body. Often, for certain external signs, the repairman can draw some 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. 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.
Sometimes the SHARP LC-52XD1E 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 CA204WJQZ common power module. In this case, the diagnosis and repair of the common power supply should always be started by checking the mains fuse. When it breaks, it is advisable to check for a breakdown, first of all, all power semiconductor elements of the converter and the rectifier diode bridge of the network, as well as the large electrolytic capacitor of the filter of the network rectifier and the key transistor.
Power switches in flyback converters fail extremely rarely for no reason and, if they are broken, it is necessary to look for a malfunction in the stabilization circuits by checking electrolytic capacitors, semiconductor devices, and resistors in the primary circuit. The cause may be a malfunction of the PWM controller chip, which can only be checked by replacing it with a new or obviously working one.
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-52XD1E 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.
Repair of the inverter RUNTKA 259WJZZ; 260WJZZ; 261WJZZ; 262WJZZ is complicated by the fact that in case of any malfunction or abnormal situation, even with uneven wear of the lamps, a protection is triggered, which turns it off for fire safety purposes. Diagnostics become impossible and protection needs to be disabled.
It should be remembered that in such cases there is a risk of failure of the power elements of the inverter and to take special care. After carrying out repairs, the protection circuit must be restored for further safe operation of the TV.
On the motherboard KD915WE01, KD604WE11, 89222441071, in case of a malfunction, you should first check the operation of all power supply stabilizers of the microcircuits and, if necessary, update the software (software).
If there is no reception of television channels, but the TV works properly from external devices, first of all it is necessary to check the voltage of the tuner DUNTKD833WE, which is usually in the range 30-33V, as well as other supply voltages on the tuner terminals.
We recommend the owners of the LC-52XD1E TV for repair only to qualified specialists with experience! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!
Service manual / schematic diagram -----------> Sharp LC-46XD1E, LC-52XD1E, LC-46XD1RU LC-52XD1RU
Service Manual with Schematic Diagram 186 pages 2006 model LC-46XD1E, LC-46XD1RU, LC-52XD1E, LC-52XD1RU.
The appearance of the MainBoard KD915 is shown in the figure below:
KD915
Main features of the SHARP LC-52XD1E device:
Installed matrix (LCD-panel) 52 inches.
The matrix control uses the Timing Controller (T-CON) CPWBX3520TPZ.
To power the backlight used inverter RUNTKA.
The formation of the necessary supply voltages for all nodes of the SHARP LC-52XD1E TV is carried out by the CA204WJQZ power supply module, or its analogs.
MainBoard - the main board (motherboard) is a KD915 module, using VGC5969B, SIL9023CTU, K4H561638H-UCB3, 24LC256, M29DW128F and others.
The DUNTKD833WE tuner provides television reception and channel tuning.
Information from an alternative source:
SHARP LC-52XD1E
Motherboard: KD915WE01, AV: KD604WE11, TUNER: DUNTKD833WE, Tuner: 89222 441071,
T-con: CPWBX3520TPZ
Invertor: RUNTKA 259WJZZ; 260WJZZ; 261WJZZ; 262WJZZ,
PSU: CA204WJQZ part1, part2