Technical description and composition of the TV SHARP LC-60LE636E-RU, panel type and applicable modules. The composition of the modules.SHARP LED
Model: LC-60LE636E-RU
Panel: LK600D3GW4BH // JE600D3GV0DY LK600D3GV0DE
T-CON: RUNTK 4910TP CPWBX KF778 V1.00
LED driver (backlight): integrated into PSU
PWM LED driver: DDA011A
Power Supply (PSU): DPS-162KP B (DPS-171CP A)
PWM Power: NCP1608BDR (PFC), DDA014 (18 pin), TNY264PN (Standby DIP-8), ST9S101 (6 pin),
MOSFET Power: 2SK3562, TK15A60
MainBoard: QPWBXF733WJN2 - KF733 - F73356
IC MainBoard: IXD241WJQZ, DC-DC SN910037, MP2301E, TPS53114, SN910038, MP2303A
Tuner: RTUDAA072WJQZ
Control: GA903WJSA
Appearance
SHARP LC-60LE636E-RU
General repair guidelines for TV LCD LED
It is advisable to start the repair of the SHARP LC-60LE636E-RU 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. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a significant clue in the assumptions about the causes and consequences of the malfunction.
If the LC-60LE636E-RU TV does not turn on, does not emit any sounds when it is turned on, and also no indicators on the front panel light or blink - there is a high probability of a malfunction in the power module. In some cases, only the stabilizer or power converter of the control processor may be faulty, which is typical for some SHARP models. It is advisable to start the troubleshooting of the power supply module by checking the state of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in such a state of breakdown.
Mos-Fet keys used in switching power supplies (SMPS) rarely fail for no reason to look for when checking other circuit elements. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. The PWM controller chip can also cause a breakdown of the power switch of the converter.
If the SHARP LC-60LE636E-RU TV does not have an image, but there is sound, a malfunction in the LED backlight circuits of the JE600D3GV0DY LK600D3GV0DE panel is likely. It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the BP (power supply) for an overstated ESR.
A malfunction in the backlight circuits often occurs due to an open in the power circuit of the LED lines. It is necessary to disassemble the panel and check the LEDs themselves, the soldering of their conclusions, as well as the reliability of the connections in the connectors and the soldering of the conclusions of the connectors.
To detect a break in the LED lines without disassembling the panel, a current source is required. It is impossible to open transitions connected in series with a simple multimeter; voltage of several tens of volts is necessary.
It should be remembered! Attempts to repair the TV SHARP LC-60LE636E-RU, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete failure of the device!
Service manual / schematic diagram --------------------> SHARP LC-60LE636E, LC-60LE636E-RU Sharp LC-52LE830E, LC-52LE830RU, LC-60LE830E, LC-60LE830RU, LC-52LE831E, LC-52LE831S, LC-60LE831E, LC-60LE831S, LC-52LE833E, LC-60LE833E, LC-52LE830EB, LC-52LE830RUB, LC-60LE830EB, LC-60LE830RUB, LC-52LE831EB, LC-52LE831SB, LC-60LE831EB, LC-60LE831SB, LC-52LE833EB, LC-60LE833EB, LC-60LE635E, LC-60LE635RU, LC-60LE636E, LC-60LE636S, LC-60LE638E
The appearance of the MainBoard QPWBXF733WJN2 is shown in the figure below:
QPWBXF733WJN2
QPWBXF733WJN2 can be used in TVs:
SHARP LC-60LE635RU (Panel LK600D3GW7CH), SHARP LC-60LE636E-RU (Panel LK600D3GW4BH).
PSU Advanced
The LC-60LE636E-RU model uses a DPS-162KP power supply unit using the PFC (Power Factor Correction) node - an active filter of the highest harmonics of the current consumption. In fact, it is a boost converter based on the NCP1608BDR PWM controller, which eliminates the charge current of the rectifier filter's electrolytic capacitor directly from the network through open diodes, when its charging current is determined by its reactance.
As a result of the operation of the converter, the envelope of the high-frequency pulses of the input current of the converter will repeat the shape and phase of the input voltage. The health of the PFC node can be indirectly judged by the presence of an increased constant voltage (about + 380V) on the capacitor of the rectifier network in operating mode.
The appearance of the power supply
Main features of the SHARP LC-60LE636E-RU device:
Installed matrix (LED-panel) LK600D3GW4BH or JE600D3GV0DY LK600D3GV0DE.
The matrix control uses the Timing Controller (T-CON) RUNTK.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by the PWM controller DDA011A.
The necessary supply voltages for all nodes of the SHARP LC-60LE636E-RU TV are generated by the DPS-162KP power supply module or its analogs using NCP1608BDR (PFC), DDA014 (18 pin), TNY264PN (Standby DIP-8), ST9S101 (6 pin) microcircuits ), and power switches of type 2SK3562, TK15A60.
MainBoard - the main board (motherboard) is a QPWBXF733WJN2 module, using IXD241WJQZ, DC-DC chips SN910037, MP2301E, TPS53114, SN910038, MP2303A and others.
The tuner RTUDAA072WJQZ provides reception of television programs and tuning to channels.
