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  1. L

    820-00164 No Power

    Sorry I wrote that wrong. I edited the post. Fan spins anytime I plug MagSafe in. Still having issue of no video, no chime. Using a 45w original Apple charger.
  2. L

    820-00164 No Power

    PM_SLP_SVS_L - 3.32V PP3V3_SUS - 3.32 DM_RSMRST_L - 3.29V Now when I trigger SMC_ONOFF_L I get 3.41 on PM_PWRBTN_L
  3. L

    820-00164 No Power

    Additionally I did try a known working display. There is no chime as well. Not sure what else to check.
  4. L

    820-00164 No Power

    Yes to vcore. PPVCC_S0_CPU - 1.8V Yes 3.4v on pin 7 & 3 No corrosion on u1950 and u6101 All spi resistors good
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    820-00164 No Power

    Well I got the board to power up. PM_SLP_S4_L was 0v which led me to u6100. For whatever reason two resistors near u6100 were missing. All traces are good. Now the issue I'm having is no video. No chime.
  6. L

    820-00164 No Power

    Finally getting around to triaging some of the boards I have laying around that won't power up. I have a 820-00164 board that shows the green to orange on magsafe charger. Not really sure where to start with no power issues. I have the boardview up. PP3V42_G3H - 3.41 PPBUS_G3H - 8.57...
  7. L

    820-00165 Charging Issue

    Pretty sure I found issue. The Trace between r7115/16 to c7116 is not making a connection. Should I try laying in a wire jumper?
  8. L

    820-00165 Charging Issue

    Here is R7121/22 Any resistance values I should be checking for?
  9. L

    820-00165 Charging Issue

    Yes that was with charger and battery connected Check this out. Right below pin 9. Trace contacts look rough. Anything I can do to clean this up?
  10. L

    820-00165 Charging Issue

    With battery connected Q7155 pin 1 7.9v U7100 Pin 9 2.15v Pin 15 .23v
  11. L

    820-00165 Charging Issue

    Noob moment. Should I have the battery attached to the board for these tests?
  12. L

    820-00165 Charging Issue

    I double checked. This thing seems to act differently Everytime power is applied as far as u7100 goes Pin 9 - 3.4v Pin 15 - .07v C7125 looks good Q7155 pin 1 is 1.58v R7113 looks good
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    820-00165 Charging Issue

    Update. It took approximately 36 hours to charge from 15% to 100% Pin 9 .10v Pin 15 .06v
  14. L

    820-00165 Charging Issue

    Well I guess I am going to try reflowing the chip. After cleaning it good with alcohol I am now successfully charging the battery BUT only charging at 1.84 watts. I assume there is additional corrosion that I cannot see.
  15. L

    820-00165 Charging Issue

    I just cleaned up the area again. Pin 26 is 0 Pin 15 also 0 now
  16. L

    820-00165 Charging Issue

    I'll check again when I get home from work today.
  17. L

    820-00165 Charging Issue

    As far as history goes not much other than being informed of the charging issue. Board looks clean. Water indicators all white. On U7100 it appears there may be some corrosion between pins 8 and 9. Anyways here are the read outs. U7100 Pin 9 - .03v Pin 15 - 8.56v Pin 26 - 14.59v 7180 -...
  18. L

    820-00165 Charging Issue

    As far as history goes not much other than being informed of the charging issue. Board looks clean. Water indicators all white. On U7100 it appears there may be some corrosion between pins 8 and 9. Anyways here are the read outs. U7100 Pin 9 - .03v Pin 15 - 8.56v Pin 26 - 14.59v 7180 -...
  19. L

    820-00165 Charging Issue

    Also on board diagnostic shows no issues.
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