Search results

  1. Yustina

    Dimmed green light on 820-2915

    Yes, i figured so far after staring at it for a while. It was a good learning project and will definitely not make the same mistakes, thats for sure. Thank you
  2. Yustina

    Corrosion everywhere on 820-00165

    today I plugged this board in to start measuring some grids and U0500 started smoking =( the smaller glass portion is actually cracked and cracked some more when plugged in, Im thinking this is for the bin now huh?
  3. Yustina

    Dimmed green light on 820-2915

    Ok, finally have time to get to this, I measured for smc bc acock and I had it, I followed the line all the way to Q5310 and when measuring this, U6901 fried with hole in the middle and all, I replaced twice and NO smc bc acok any longer... I am fixing on getting another power supply and I N J E...
  4. Yustina

    Dimmed green light on 820-2915

    I have no smc bc acok, i believe voltage on pin 4 of u6900 is around 16V, will measure and post again as soon as i get home
  5. Yustina

    Dimmed green light on 820-2915

    Thx for pitching in! I get 3.5V on that inductor.......
  6. Yustina

    Dimmed green light on 820-2915

    I will figure out the deal with my power supply then inject up to 3V and go from there. The buzzing is stronger on the U1800 area but not sure if its coming from there..... i will keep trying, thanx for your help so far!
  7. Yustina

    Dimmed green light on 820-2915

    Ok, I was able to connect my power supply but unable to inject more than 1.4V, regardless of amperage. My power supply is regulated and I am unsure if this has anything to do but it would not go over 1.4V, I will figure this one out later. When I had that voltage, I did feel L7630 get hotter...
  8. Yustina

    Dimmed green light on 820-2915

    holy shit! this is starting to make more sense now, reading you and looking at the schematic.... yes, I have a power supply here, need to find wires..... ok, I have seen videos of Louis R. about this, will follow and test for hot areas..... Thanx so much man! I will post my findings! =)
  9. Yustina

    Dimmed green light on 820-2915

    According to me ( :/ ) I have tested ALL RAILS but again, I am sure I missed several important areas, I am getting better though, thank you for the tip. I have removed L7030 and measurement on diode mode for pin 1 is .430v , pin 2 is still 0v
  10. Yustina

    Dimmed green light on 820-2915

    I have replaced u7000 already, maybe like 3 times (of course, from donor boards) but in the end, the same result, bright green light then dims to a very low one. Machine does not recognize the battery so, dead on battery as well. Diode mode on reading on L7030 is pin 1 and 2 are zero V, pin 3...
  11. Yustina

    Dimmed green light on 820-2915

    ok, left board to cool off completely and my resistor now measures 228 ohms, what could have messed it up? I am aware of the lots of components on the line but, which one would have the ability to mess up the resistor like that.... it was fine for about one minute after board being plugged in...
  12. Yustina

    Dimmed green light on 820-2915

    ok, replaced and resistor was measuring 20.5 ohms, plugged in and still no bright green light, only dimmed, started measuring pins 2, 3 and 13 of U7000 again and measures came up as per boardview, after a moment, measured resistor and it fluctuates between OL and 0 ohms now and measurements back...
  13. Yustina

    Dimmed green light on 820-2915

    yes, its bad, it measures 331ohms off the board, replacing and measuring
  14. Yustina

    Dimmed green light on 820-2915

    ok, measured again and the resistance reads 1.008 Kohms
  15. Yustina

    Dimmed green light on 820-2915

    hhmmm, just noticing its supposed to be 20! ill check again
  16. Yustina

    Dimmed green light on 820-2915

    sorry, meant to say ohms not V
  17. Yustina

    Dimmed green light on 820-2915

    lol, just saw that on the schematic..... ok, resistance is 3.8V
  18. Yustina

    Dimmed green light on 820-2915

    PIN 2 OF U7000 reads 1.8V PIN 3 reads 3.96V pin 13 is SMC_RESET_L (CHGR_RESET_L) measures 3.5V
  19. Yustina

    Dimmed green light on 820-2915

    Thank you so much for taking this time with me, as soon as I get back home I'll take these measurements again and post
Top