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  1. S

    820-01041 5v

    i get every voltage except the PP1V1_UPC´s (diode mode is 0.450 on all)
  2. S

    820-01041 5v

    820-01041 with no signs of damage. i get 5v on 3 ports and 20v on the XA port. There are no shorts to ground on any of the LDO lines on the CD3215 chips. When on the XA port: PPBUS_G3H = 12.24v but still no boot.
  3. S

    820-01521 no audio on speakers

    No history. SPKRAMP_RESET_L = 0.001 SPKRAMP_INT_L = 0.360 removed U6400 and C6104. Still shorted.
  4. S

    820-01521 no audio on speakers

    Hi, got an 820-01521 with no audio on speakers, no signs of damage. The audio Jack works but not the internal speakers. Speakers show on OS and volume bar also shows. Tired know working i/o board and flex cable, tried known working speakers. I get 1.8v on AUD_PWR_EN. I also get PP1V8_G3S...
  5. S

    820-3115 no power

    No fan spin no light. PP18V5_DCIN_FUSE is 1.8v and ADAPTER_SENSE is 0v. Tried a different DC in board and no change. Charger is OEM and its working. F6905 has continuity. CHGR_UGATE is 0v. CHGR_LGATE is 0v R6929 is 2k ohms. Diode mode to ground: SMC_BC_ACOK = 0.427 PPBUS_G3H is 0v and...
  6. S

    820-3115 no turn on

    3 = 0.719 8 = 0.643 17 = 0.482
  7. S

    820-3115 no turn on

    16 = 12.5v 8 = 0v 13 = 3.4v 3 = 0v 17 = 0v 6 = 0v 1 = 0v
  8. S

    820-3115 no turn on

    Hi, got a 820-3115 board that does not boot. Got green light but no fan spin. PPBUS_G3H = 12.5v PP3V42_G3H = 3.4v no PP5V_S5 and PP3V3_S5. Replaced U7200 no change. PPBUS_S5_HS_OTHER_ISNS is 12.5v 5V3V3_REG_EN is 3.3v
  9. S

    820-4924 shuts down

    820-4924 that shuts down after 30secs -2min. No kernel panic error. In safe mode, SMC bypass it takes way longer to shut down. I tried another motherboard on its chasis and it didnt shut down, so external components are ruled out Voltages after shutdown = PPBUS_G3H = 12.21v PP3V42_G3H =...
  10. S

    820-00840 does not boot with battery connected.

    It was the palmrest, after replacing it turns on and works off the battery just fine. Even though i had tested it without connecting the trackpad flex cable, so i dont really understand how is it related to the battery.
  11. S

    820-00840 does not boot with battery connected.

    Battery alone, no start. Other charger, same thing. No charger, works normal.
  12. S

    820-00840 does not boot with battery connected.

    No history available. No signs of water damage
  13. S

    820-00840 does not boot with battery connected.

    It boots with the battery screw but not with the flex cable. Fan spins for a few seconds and screen flashes backlight, then shuts down. Tried several working batteries, no change. Also tried a different data cable. J6950 is not shorted. SCL/SDA lines are 0.369 diode mode to ground. Resistance...
  14. S

    820-3462 not charging the battery

    PPBUS_G3H_R and PPVIN_G3H_P3V42G3H are both 1.1v and going down with only battery connected. R6905 is 10ohms and has continuity. Q7055 voltages with battery and charger: CHGR_BGATE= 2.5v PPVBAT_G3H_CHGR_R = 10.2v PPVBAT_G3H_CONN = 10.2v PPBUS_G3H with battery connected is 10.2v (without...
  15. S

    820-3476-A not charging correctly

    PPDCIN_G3H = 16.46v CHGR_AGATE_DIV = 6.68v PPDCIN_G3H_INRUSH = 16.44v CHGR_SGATE_DIV = 6.22v
  16. S

    820-3476-A not charging correctly

    from scrap board, but i tried 3 different ones
  17. S

    820-3476-A not charging correctly

    also tried several, and the one im currently using works fine on other machines.
  18. S

    820-3476-A not charging correctly

    PPDCIN_G3H = 19.9 DCIN_ISOL_GATE_R = 6.78 PPDCIN_G3H_ISOL = 19.9
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