Electro Pcb Repair

This is an IFB Top-load washing machine control panel it has an AC low error. This is a power error that the input line has low voltage but in reality, the voltage is correct into line.  So we will repair the PCB  fix error ac low  Now we have to check those resistances that take signals from the input line and delivered on the main microcontroller IC.  That kind of resistances is 100 kilo-ohms above to up and we can find easy into the circuit you are seeing in figure 2.  There is a resistance R1 560k. This resistance is a very important play role in the circuit  R1 is a calibration resistance for line in voltages if the resistance will be increased.  then show the error on display  AC HIGH  if the resistance value decreases then show an error on the display AC HIGH.   without a pressure sensor, we cannot check the PCB for all functions so we have to attach the pressure sensor with PCB. You are seeing  in figure 2 In most of the cases, R1(560K) is open. By replacing the resistance the

IPM is the most important part of inverter-based things such as inverter air-condition, Refrigerator, Moter drive, On-grid solar inverter, Three-phase inverter, etc. IPM (Intelligent Power Module ) is a high-performance module that mounts a dedicated drive circuit for drawing greater performance from an IGBT chip, and it provides a custom IC IPM is a combination of IGBT    and bridge drive chip which is a vital compact electronics part for every compact thing like BLDC motors that are mostly used in all kinds of Refrigerators and Air conditioners. there are a lot of pins put on the Ipm and these pins assigned the various type of work such as Dc input voltage, AC output voltage, Input signal voltage, sensors signals, etc.

PCB-Printed Circuit Board. PCB mainly consists of Microcontroller which we can say that it is the brain of the circuit without this the circuit is incomplete. Microcontroller and other components of PCB combine forms a Circuit in which Microcontroller operates all functions. The Microcontroller (mn101ef31gxw) is a programmable IC(Integrated Circuit) which can be programmed to operate any kind of machine. One more IC called EEPROM(24c04) also works with it.  Other than these PCB need power like 5volt to operate microcontroller and 12volt for other components like Relay, etc.  Mostly the problem that comes in LG Air Conditioner PCB is power supply related. The SMPS power supply becomes faulty due to fluctuation of light and other some reasons.  Other than this power supply problem, the EEPROM IC problem also comes in the PCB. Due to this IC problem, sometimes it does not ERROR on display and the PCB also not works. When the IC becomes faulty, then the technician also faces some problem r

With the passage of time, everyone should get change. Everyone should get up to date to the new technology. Due to the advancement of technology, Analog circuit boards have been replaced by Digital circuits. In the Analog circuit, each IC was programmed for one function only. due to which detection of fault was easy by the technician. In today's advancement era, big circuit boards have been replaced by tiny ones that perform various kinds of functions at a time. Circuits made on the basis of new technology and advancement are not easy to understand by the technicians who are working for years. But they need to get trained for these. Technicians should gain knowledge about these from good tuitors who are expert in technology. .

12 years ago air-conditioning was manual and without electronic circuits So it's repairing was easy Split air-conditioner control circuit board  Six years ago the air conditioner was an automatic and remote controller and its repair was divided into two technicians such as an AC mechanic and an electronics worker, but many were learning about air conditioner control circuits and many were learning technicians. But now for a few years, every company has been making inverter technology-based air conditioners and fridges.

There are a number of Technician In India.  who was working like air-conditioning, refrigerator, television, audio, washing machine,  DC  AC panel, Moter, Stabilizer, inverter, and also earned well?   But in some years, these have many changes in things and their circuits has been totally changed.  Regarding these changes Old and New technicians are facing problems. because all the circuits are coming program chips and also PCB changed in smd.

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