{475} SMPS Is Not Working || SMPS Not Turning ON
6.5 هزار بار بازدید -
2 سال پیش
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in this video number {770}
in this video number {770} SMPS Is Not Working || SMPS Not Turning ON. i explained how to troubleshoot, test and repair UC3842 current mode smps controller ic to provide 24V 2 ampere in flyback topology. this 3842 ic belongs to a complete family of KA3842, TL3842, MIC38HC42, UC3843, KA3843, TL3843, MIC38HC43, UC3844, KA3844, TL3844, MIC38HC44, UC3845, KA3845, TL3845, MIC38HC45, all the above mentioned ics have approximately similar circuits. i found the smps controller, vcc capacitor, vcc rectifier, and 2x zener rectifiers, and one SCR in protection circuit.
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00:00 How to repair smps, have no power, not turning on, not working
02:51 How to Replace IC in the board
05:02 how to test polar or polarized dc capacitor
08:40 how to get / find / download circuit diagram / schematic for the SMPS circuit
09:21 SMPS power supply have strange tick tick whistling sound
09:39 How to fix SMPS Low output voltage with fluctuation
14:20 SMPS have very high uncontrolled output voltage than the rated voltage
15:08 How to Test P421 or TLP421 optocoupler IC
16:26 P421 or TLP421 equivalent
You are Invited to Join Haseeb Electronics
@haseebelectronics
#howtorepair #smps #uc3842
SMPS Is Not Working, smps not turning on, smps is not working how will you check, how to know if smps is not working, how to check smps is working or not, smps, how to repair smps, how to repair switch mode power supply, haseeb electronics, switching mode power supply tutorial, switching mode regulator, how to repair switching mode power supply, smps tutorial, switching mode power supply, how to repair switch mode power supplies, how smps work, very easy repair of smps, how switching mode power supply works, power supply, switch mode power supply, smps repair, switching power supply repair, smps repair step by step, smps no output voltage, basic working of switching mode power supply
00:00 How to repair smps, have no power, not turning on, not working
02:51 How to Replace IC in the board
05:02 how to test polar or polarized dc capacitor
08:40 how to get / find / download circuit diagram / schematic for the SMPS circuit
09:21 SMPS power supply have strange tick tick whistling sound
09:39 How to fix SMPS Low output voltage with fluctuation
14:20 SMPS have very high uncontrolled output voltage than the rated voltage
15:08 How to Test P421 or TLP421 optocoupler IC
16:26 P421 or TLP421 equivalent
2 سال پیش
در تاریخ 1401/10/01 منتشر شده
است.
6,579
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