Author Topic: FIXED! Sanyo Projector With Shorted Inductor & Transistor  (Read 2172 times)

0 Members and 1 Guest are viewing this topic.

Offline helius

  • Super Contributor
  • ***
  • Posts: 3649
  • Country: us
Re: FIXED! Sanyo Projector With Shorted Inductor & Transistor
« Reply #25 on: August 05, 2020, 06:36:38 pm »
Yes, it's just a ferrite bead. I wasn't sure how important it is. I couldn't understand why it said 330 ohm next to it in the service manual. The other ones on the board measure 0 ohms across them. Perhaps it has the potential to resist current in a manner which is equivalent to 330 ohms of resistance in certain conditions or something?

As I wrote in Reply #2,
...This is the impedance of the inductor to a sine wave at some specific frequency, probably around 10 MHz.

RF suppression chokes and ferrite beads for general use are rated at 10 to 100 MHz.
 
The following users thanked this post: Fixin Stuff

Offline james_s

  • Super Contributor
  • ***
  • Posts: 21611
  • Country: us
Re: FIXED! Sanyo Projector With Shorted Inductor & Transistor
« Reply #26 on: August 11, 2020, 12:07:55 am »
Good job, thanks for the followup.
 
The following users thanked this post: Fixin Stuff


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf