Search results

  1. R

    820-2850 No PPBUS_G3H

    Yes it is. Genuine Apple 85 W. Thanks.
  2. R

    820-2850 No PPBUS_G3H

    Once power is drained I can plug battery in and when I plug in magsafe the machine will boot, see and charge the battery. Once I shut machine down and press power button to turn the computer back on, the amber on magsafe turns green for a second then amber again. No power. Have to remove battery...
  3. R

    820-2850 No PPBUS_G3H

    Sorry Duke I guess I wasnt using Real charger before on that last post. looked real at first glance. Too much crap on my desk, had to organize. Now, with Real charger the Machine will turn on when plugging in magsafe. But only turns on when plugging in magsafe without battery plugged in. Will...
  4. R

    820-2850 No PPBUS_G3H

    Starts at 7.01 MOhm and slowly drops down. Held probes there until 4.75 MOhm then got tired of holding them. Went to check 3v3_s5, plugged in magsafe and battery and the fucking fan is spinning. I swear I didn't do it. So now when Battery and charger plugged I get fan spin. If I turn it off it...
  5. R

    820-3115 Intermittent flickering lines across screen and freezing.

    I have a 2012 A1278 that Very intermittently will have flickering lines across the screen and sometimes may freeze. Customer says that it happens very quickly and randomly. I myself however didn't experience it until I tilted it backwards from under trackpad. I thought it could be an LCD cable...
  6. R

    820-2850 No PPBUS_G3H

    SDA 0.485, SCL = 0.486. S4 = 0.502, S3 = 0.546, = S0 0.546. No short. Thanks. Update- CHGR AC IN = 4.01V CHGR DC IN = 18V Thanks.
  7. R

    820-2850 No PPBUS_G3H

    Thanks. Resistance between 17/18 = 3.1 ohm, 27/28 20.1 ohm. Will not turn on from battery.
  8. R

    820-2850 No PPBUS_G3H

    G3H Starts at 1.9V and drains slowly to 0 PP3v42 - 3.41 G3H Resistance in Diode mode - 0.440 Board looks like it has been worked on before. Flux around U9600 and U7201. Thanks in advance.
  9. R

    [SOLVED] 820-2936 not charging battery

    update: went digging for copper in pin 1 to fill with solder to reattach J6955 . Got scared cause I think I went too deep and stopped, LOL. Gonna have to run a couple wires after that one. I think I was going to have to anyway. However! ... pp3v42 is back, and I have no idea how. Any thoughts so...
  10. R

    [SOLVED] 820-2936 not charging battery

    thanks duke. Top resistor 1.9. Bottom was 4.1. I replaced bottom resistor. Now both resistors at 1.9kohm. G3hot is 19 volts. pp3v43 still missing. Does j6955 have to be on board to get pp3v42? PP3v42 was present before I removed it. Thanks.
  11. R

    [SOLVED] 820-2936 not charging battery

    Hello. got this in for not charging battery. It sees it and shows its connected but light on charger never turns amber and system report states that it is not charging. If I unplug machine will still run. upon checking the board i noticed the around the BIL connector there was liquid damage. Pin...
  12. R

    820-2850 intermittent back light issue,

    I havent replaced anything yet. Overheating has been resolved. C9560 cause no backlight?
  13. R

    820-2850 intermittent back light issue,

    2010 A1286 came in today for overheating/shutting down issues. Everything worked fine (Booted into OS full video and backlight, chime.) except for the overheating when it was dropped off in queue. A couple hours later when I turned it on it would only boot video but no backlight. At this time...
  14. R

    820-3115 No Backlight No Video

    Thanks for the response. Though I am definitely interested in doing BGA rework in the future if there is money in it and it becomes more demanding for me I will take your advice and practice with my hot air station. (crawl before you walk type thing)Thanks again Duke. Have a good one. PS. $1000...
  15. R

    820-3115 No Backlight No Video

    OK... I'll Pray around... Just a few questions first... 1. This is most likely not something I can do with a hot air station. Is there a decent BGA rework station available that you can recommend to carry this out? 2. The chips I'm finding online are from China and cost 11 bucks. Are these...
  16. R

    820-3115 No Backlight No Video

    OK. Thanks for your help. I appreciate it. Have a good one. Thanks Duke as always.
  17. R

    820-3115 No Backlight No Video

    Hi. Thank you. It is on Pin 1.
  18. R

    820-3115 No Backlight No Video

    So I should i will remove L9080 and check for short in line from pad 1? This line goes to PCH. Thank you.
Top