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  1. M

    820-4924-A Water Damage, no keyboard, no trackpad

    Hi, Coffee spilled on keyboard. No corrosion on the motherboard. Tested with new keyboard - working. After installation not working. Tested with new keyboard - working. After installation not working. Test more times: sometimes working, sometimes not working. Tested with good trackpad and...
  2. M

    820-3437-B No fan, no water, MG orange

    Checked for shorts at power FETs - no. I am going to send it to another shop that specialises on MB repairs before I mess things up with SMC and PCH reflow. Thanks for your help. I will post if they manage to fix it.
  3. M

    820-3437-B No fan, no water, MG orange

    SMC_DELAYED_PWRGD no pulse at all! pins 5/6 shorted - no pulse on pin 3. VCORE you mean L7310 and L7320? also 0V
  4. M

    820-3437-B No fan, no water, MG orange

    Triggered SMC_ONOFF_L repeatedly. PIN 5, 7 of U1950 - pulse PIN 3, 6 - no pulse.
  5. M

    820-3437-B No fan, no water, MG orange

    Pin 7 - pulse.
  6. M

    iMac A1419 screen ficker

    Hi, I have an iMac 27-inch from Late 2013 with flickering screen issue (exactly as on the video from the link). Tested with another screen and LCD cable still flickering but differently (the whole screen flickers ON/OFF with another screen). What do you think it can be? THanks!
  7. M

    820-3437-B No fan, no water, MG orange

    U1950 no pulse at pin 3
  8. M

    820-3437-B No fan, no water, MG orange

    Apologies. Point well taken. L7130: pin 2 - 8.6V, pin 1 - 8.16V ALL_SYS_PWRGD - pulses 0.6 - 1.3V
  9. M

    820-3437-B No fan, no water, MG orange

    Hi there, No water damage. Board inspected, nothing looks suspicious. SMC reset - MG flashes green to orange. SMC bypass - gave me half a fan spin once but not anymore. L7701 - 0V L3095 - 0V L7130 - 8V L7520 - pulse around 0.5-2V L7560 - 3.2V L7430 - pulse 0.5V L7630 - pulse around 0.4V L7310...
  10. M

    820-4924-A Water Damage, MG light ON, No fan

    L7630 is max 0.63V on pin 2. Dont own an o-scope unfortunately. U1950 pulse around 0.7V SMC bypass does nothing. Check for corrosion in other areas again but nothing new detected. Reball SMC is my last option? Need to order stencil in that case. Use solder paste or balls? THanks!
  11. M

    820-4924-A Water Damage, MG light ON, No fan

    L7630 - pulse random from around 0.5 to 2.5V ALL_SYS_PWRGD - pulse random around 0.4V to 1.97V
  12. M

    820-4924-A Water Damage, MG light ON, No fan

    I'm sorry I gave false information in my previous post (used a wrong charger). L7520 - pulse around 3V L7430 - pulse around 0.5V L3095 - no pulse L7320 - no pulse L7310 - no pulse
  13. M

    820-4924-A Water Damage, MG light ON, No fan

    No pulse on any of the big coils. Only L7130 shows 12.6V on pin 2 and 11.5V on pin 1.
  14. M

    820-4924-A Water Damage, MG light ON, No fan

    Hello, Water damaged. Corrosion around J7050. Replaced C7060 C7050 C7135. Explosion C7435 (DDREG). Pad under pin 1 destroyed (see attached picture). Jumper to C7382. C7435 is connected to U7400. U7400 all pin 0V PPBUS_G3H - 12.6V 3V42 - 3.42V SMC_RESET_L - 3.11V PP5V_S5 - 5V PP3V3_S5 - 3.3V...
  15. M

    820-3023 no water damage. light on MG. Fan spin. No chime. No image.

    It beeped when it died according to the customer. when i test it, It does not beep. Will try heating ram and cpu and burning crap.
  16. M

    820-3023 no water damage. light on MG. Fan spin. No chime. No image.

    Hi there, No signs of water damage. Customer says started beeping and switched off. After that does not turn on anymore. no water damage. light on MG. Fan spin. No chime. No image. PPBUS_G3H - 8.4V P3V42_G3H - 3.42V L7260 - 3.3v L9701 - 0v L3895 - 0.2v L7220 - 5.1v L7100 - 0.9v L7630 -...
  17. M

    MBA 11? - 3435 - WD. No fan spin. Orange MG without Battery. Green with the battery.

    Check all traces and resistors around. - check Be sure R/C7630 are good - check If nothing strange, change U7600 - changed. BOOM SHAKALA! works again! Thank you very much for your help and have a great day!
  18. M

    MBA 11? - 3435 - WD. No fan spin. Orange MG without Battery. Green with the battery.

    "L7130 - 7.25v" - is with original charger connected. No battery, I swear the god!
  19. M

    820-3476 - works but doesnt charge, blinks once green light on MG port

    D7010 looks good. R7012 shows 68K Ohms Replaced Q7180 and voila, it works again! Thanks for your help!
  20. M

    MBA 11? - 3435 - WD. No fan spin. Orange MG without Battery. Green with the battery.

    L7630 shows 140 in diode mode L7630 - 0.3V L7430 - 1.2v L7130 - 7.25v L7560 - 3.3v L7520 - 5v L3095 - 0v L7701 - 0v L7310 - 0v L7320 - 0v
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