Author Topic: Help finding component info for fixing power supply  (Read 235 times)

0 Members and 1 Guest are viewing this topic.

Offline Mikejm79

  • Contributor
  • Posts: 7
  • Country: us
Help finding component info for fixing power supply
« on: November 04, 2019, 01:12:18 pm »
Been trying to get into fixing electronics.  Had a few successes so far.  But this one power supply is driving me nuts.  It is a 24volt power supply, but it only outputs 9v.  After many hours of testing components, I think I may have found the problem.  There are 2 components with a TRC label, component tester identifies one as a Triac and the other as a resistor.  In a transitory type package TO220, I think.  Says it's 60 Ohms across pin 1 and 3.  Cant find anything online to confirm it's a triac, but pretty dang sure it's not a resistor.  It's has SK marking and M841 and the 8d on next line.  All capacitors show ok with esr meter, no shorted diodes, no blown fuses or resistors, and oscillator chip is ocillating.  If cant find datasheet or replacement...what can I use instead? Thanks!
 

Online Caliaxy

  • Contributor
  • Posts: 26
  • Country: us
Re: Help finding component info for fixing power supply
« Reply #1 on: November 04, 2019, 01:26:47 pm »
2SK841?
 

Offline mariush

  • Super Contributor
  • ***
  • Posts: 3908
  • Country: ro
  • .
Re: Help finding component info for fixing power supply
« Reply #2 on: November 04, 2019, 01:45:36 pm »
The SK makes me think it's made by Sanken , a Japanese company.

It could be Sanken TM841 (based on M841 printed on it) :

* sanken-tm841.pdf (64.14 kB - downloaded 14 times.)
 

Offline Mikejm79

  • Contributor
  • Posts: 7
  • Country: us
Re: Help finding component info for fixing power supply
« Reply #3 on: November 04, 2019, 02:03:33 pm »
Thank you!
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf