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LCD TV Panel Problem
Below are two photos of LCD TV that was sent by one of my ERG members. The photos is to show you how a bad LCD Display panel look like (3 circles of big black dot). The...
- Posted July 8, 2013
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APPLICATION OF MICROCONTROLLER IN AUTO DETECT DOOR OPEN AND PAPER JAM ERROR
Microcontroller was invented by Intel sometimes in the 80s ever since that invention other Electronics companies such as Atmel, Microchip and Motorola etc have manufactured different brands of Microcontroller like AT89, PIC16F and 68H All microcontrollers performs...
- Posted July 7, 2013
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No Display In LCD Monitor
I am getting power to the system, The power LED will light blue and after a couple of minutes will turn orange. The problem that the computer came in with was “Display shutting down after a few...
- Posted July 6, 2013
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A no sound problem in a CD player repaired. Model: APEX AD-515
A repair technician, also a friend of mine called me on the phone to help him with a problem. This guy repairs only TV sets and Treadmills. For some reason he does not deal with CD players....
- Posted July 6, 2013
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Testing Capacitor Value
I have Question about how to test this type of component if they are bad or good (.15j100) (1j63) Answer: Test with digital capacitance meter. The first one is .15uf 100v or 150 nanofarad and the second...
- Posted July 6, 2013
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IGBT and Diode Always Burnt In Laser High Voltage Power Supply
Can you please guide me regarding my laser High Voltage Power supply. One month before i have replace part IGBT G40N60B3 and Diode DSEI30-06A, after replacing the part my power supply working well, but now it will again Burn...
- Posted July 5, 2013
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7805 Voltage Regulator IC Pin Identification
Last week due to high voltage the tape recorder was burned. simply i have removed the screw and checked the components .there is one capacitor value 4700mf /50v ,2200mf,1000mf capacitors are blast.just i have cleaned the cabin...
- Posted July 5, 2013