mamsterla Wrote: > There are two sides, a two pin side and a three pin side. I am assuming > that the two pin side is the input and that the 3 pin side is the > output. The center pin on the three pin side appears to be a "shield" > wire. Gary, what did you wire to this?
The 3 pin side is the primary. The datasheet labels the transformer as follows: Top View Pol. Dot 1 --- 2 --- 3 In+ Shld In- 4 ------ 6 Out+ Out- I wired the Shield to board ground. mamsterla Wrote: > Also do you just remove L8/L9 or jumper across them. I cannot find > R55/R56 where you said you took the digital signal. Can you check your > board to let me know if those are the right resistors? > > On my SB2 board, the resistor upstream from L8 is R22 and the resistor > upstream from L9 is R26 - these are hard to read like 2438ohms or > something. These are horizontally laid out and then below them are two > vertically laid out resistors R25/R27 on the L9 side and R23/R24 on the > L8 side. None of these is 107ohm or 245ohm as you stated in your > original post. > I just removed L8 and L9. If you trace back from L8, you should see it going to the junction of two resistors. I probably got the labelling of these wrong when I wrote my initial message. All my SB3 are in use so its not easy to go back and check the resistor labels. I wired up the transformer so the shield and In- connection go to a convenient ground point on the board. The In+ goes to the junction of the 107 and 245ohm resistors that I mentioned. The resistor you found that is labelled 2438 might be the 243ohms. Did you try measuring it? The 107ohm resistor goes to ground while the 245ohm resistor goes back to the output driver chip. If you are having trouble find these resistors, you can always wire to the pads where L8 and L9 were connected. One of them should go to ground and one will measure 107 ohms to ground. ---Gary -- GaryB ------------------------------------------------------------------------ GaryB's Profile: http://forums.slimdevices.com/member.php?userid=3169 View this thread: http://forums.slimdevices.com/showthread.php?t=19822 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
