My power supply having a problem. Once ac current go through power cap there is resister and capacitor named 225 k- 400v.but resister all ways blow out . what value resister and cap I should replace.this is 350 w atx. Please advise.thank you sir.
@ChammikaElectronic2 жыл бұрын
You must first check if there is a short in your power supply. Replace the resistor of the same type (225 k) as before and remove the fuse. Then solder a holder to the location where the fuse was. Then put a 100w filement light on that holder and power it on. Then tell me if the filement light is on continuously or not. I will tell you second what to do next.
@ChammikaElectronic2 жыл бұрын
You can get an idea by watching this video kzbin.info/www/bejne/mKG5g4KrfaqElcU
@ChammikaElectronic2 жыл бұрын
kzbin.info/www/bejne/mKG5g4KrfaqElcU
@senakawickramasuriya35522 жыл бұрын
My resister all ways blown. I can't remember the exact value. Give me idia Thanks
Output capacitor wala voltage adu unoth prashnayak wanawa thamai aka wadi unata prashnayak ne. But microfarad gana ape kamaththata wadi karanna be. Oya kiyanna widihata cap wala microfarad gana wadi unata aulak ne kiyana aka waradi kathawak yaluwo...... ae wagama testing lamp aka wada mula idanma use karanna. Technician college akaka practical repairing akak nada me. Uthsahaya godak watinwa. adupau hadaganna. Good luck.
@matheeshshamalka5278 Жыл бұрын
Machan mage powersupply eka gahuwama athulen eka paratama short wela gindara wisiwenawa. Mokakda karanna oni
@akilakeerthisingha3017 Жыл бұрын
@@matheeshshamalka5278 electronic gana podi danumak ho oya yaluwata thiyada. Thiyai nam karanna one wada tika kiyannam.
@ChammikaElectronic Жыл бұрын
Thank you අයියෙ .මම ඇත්තටම ඒ ගැන දැනගෙන හිටියෙ නෑ .මම ඉස්සරහට කරන video එකකින් ඒක නිවැරදි කරන්නම්
Mage pc eka on wenne ne power supply ekath weda karanawa.motherboard eke thamai prashnayak thiyenne .mama eka laga thanakata hadanna dunna.eke power ic eka gihilla kiyala thamai kiwwe eka hadanna be kivva.eka hadanna puluwan weida.
@leddanushka18282 жыл бұрын
computer power supply voltage decrease and increase repair මේ ගැටලුව කරන්නේ කොහොමද
@production65064 ай бұрын
Stand by waltage ekh enne nathi ekhta hethuwa mokdda shot mukuth naha bulb ekh dala baluwamath on vela off venawa
hada ganna puluwan.ekata yana kalyai, salli baluwahama ithin samahara wita e ganata use ekak gannath puluwan wei.igena ganna nam reair kalata paduwak ne
: Polarity: NPN Maximum Collector Power Dissipation (Pc): 85 W Maximum Collector-Base Voltage |Vcb|: 700 V Maximum Collector-Emitter Voltage |Vce|: 400 V Maximum Emitter-Base Voltage |Veb|: 9 V Maximum Collector Current |Ic max|: 9 A Max. Operating Junction Temperature (Tj): 150 °C Transition Frequency (ft): 5 MHz me tika match karala wena ekak danna puluwan rl257 kiyanne rectifier diode ekak ekatath hariyana ekak danna puluwan, 1N5408,
Power supply eka short wenawa dapu gaman ma mokadda wela thiyenne
@ChammikaElectronic Жыл бұрын
Check කරන් නැතුව හරියටම කියන්න අමාරුයි
@athulakulathunga33152 жыл бұрын
god job, well explained...
@ChammikaElectronic2 жыл бұрын
thank you
@vijithawejesundara41652 жыл бұрын
Puluwannam ayya hadana widiha kiyanna
@jenusean5487 Жыл бұрын
I have 3 power supply All power supply working but no display i think CPU power 4 pin is not working Please help😥
@ChammikaElectronic Жыл бұрын
use a good power supply and see if the display comes on. Maybe the fault is in the motherboard.
@pramithajay98619 ай бұрын
Oyawa contact karaganna පුළුවන් da
@nadeeshbro...78332 жыл бұрын
නිකම්ම හරිගියෙ කොහොමද ඔයා විස්තර කරා මදි වගේ නේද
@Online_Pc_Store2 жыл бұрын
සම්පූර්ණ වංචාවක් කලේ viwes ගන්න
@ChammikaElectronic2 жыл бұрын
nikamma hari giye ne. apita diode board eke thiyeddi hariyatama shortda kiyanna be. eka galawala balanna one. diode shortda kiyala thahawuru kara ganna thama galawala beluwe. bpard ekedi short pennwana eka e board warge heti
@raasiyaex1739 Жыл бұрын
@@ChammikaElectronic short eka thibune mokeda ethakota? Pahadili madine.
@vijithawejesundara41652 жыл бұрын
Ayye mage eke fan wada habay gahuwama on wenna
@kasunthilakarathna2636 Жыл бұрын
Mage power supply ekata current eka enne naha.mokakda karanna one