WATCH THIS VIDEO ON YOUTUBE https://youtu.be/k9B1xGTajLI

To watch ATX power supply with AT2005 IC https://youtu.be/T_HoBKYwRSE

i explained practical How to repair computer ATX switch mode power supply SMPS very easy. this PSU is using SDC2921 IC which is PWM and intelligent power supply monitor. i shared my easiest and perfect troubleshooting techniques practical troubleshooting. smps concept and troubleshooting repairing or understanding repair switching mode power supply basics and working principle. how to troubleshoot input electromagnet induction filter, EMI, bridge rectifier and capacitor. we get 330 VDC at main capacitor. after hat the +330 volts are applied to standby power, which is SMPS and makes +5V SB, these stand by voltage are applied to motherboard which pull down the PS ON green wire to zero level, so the ENABLE OR REMOTE ON or CONTROL pin of #smps will go low that will enable pulse width modulation. and also i discussed smps basics. after watching this video you can capable to:-
understanding atx power supply basics circuit diagram schematic with complete tutorial
working of atx smps
if computer power supply does not on, or fan runs and stops, fluctuation, turns on goes off again or fail to start
short circuit, or fuse blows burns again and again
how to #repair #smps
how to #repair #computer #power#supply #atx
fuse keeps blowing
how to repair switch mode power supply when short circuit at input
if SMPS is dead or no ouput
if SMPS have fluctuating output or output voltage unregulated
if smps have short circuit in output
how to eliminate short circuit
how to troubleshoot #PWM #SMPS #controller when there is no switching from #MOSFET
if SMPS have a whistle sound or excessive noise or excessive heat
how to repair mobile charger
how to repair computer power supply
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how to repair inverter of solar system


ATX power circuit diagram / schematic explained https://youtu.be/O8mT9I3chzQ
https://youtu.be/1g1e4mUyss8

71 ATX Power Supply Circuit Description in Urdu / Hindi https://youtu.be/F9WqNSpielE
https://youtu.be/X4sY_tt2JPY

how to increase output of SMPS https://youtu.be/8ZoX1WUytkI

short in put of SMPS and fuse burns again and again https://www.youtube.com/watch?v=AvA_h3b7Tgk

fluctuations in output of power supply https://youtu.be/CbImtx6j02k

smps basics tutorial and testing https://youtu.be/5pLjBKWJYuo

feedback in smps https://youtu.be/GBGB0dIFzbw

how to repair troubleshoot smps https://youtu.be/PPLjXkca7eo

How to repair switch mode power supply SMPS practical troubleshooting https://youtu.be/BZersXM0rDc

SMPS / PWM basics circuit description with practical switch / switching mode power supply https://youtu.be/E_dQcKAqm38

SMPS Switching switch Mode Power Supply repair Basics & Troubleshooting https://youtu.be/7je0v8AiBB4

SMPS practical tutorial https://youtu.be/7je0v8AiBB4
https://youtu.be/PPLjXkca7eo