Search results

  1. M

    MBP A1502 no image on screen

    MBP A1502 No image on screen, BUT with external monitor its working 100% fine SINCE I do not have same MBP A1502 screen to test and check if its BAD screen. Is there any other test that I could make? Can I test an old A1278 screen on this model to check? Any other method to test before going...
  2. M

    820-3437B not turning on

    I am with this board as not turning ON Fan doesn't have any behavior PPBUS_G3H = 8V PP3V42 = 3.40v PP5V_S5 = 5V PP5V_S0 = Tries to get to 5V and then drops to 0 and its a loop doing that.
  3. M

    iMac 820-3126 Half Fan Spin

    Hello This iMac is with white screen of death and I just bought a K2100 to solve this issue However when dissambly I break 1 cap (C3634) and had to put back R3604. Not sure if I damage anyother thing. However I did a GOOD visual inspection and didn't find anything Now it only has 1 LED...
  4. M

    820-01521-A No Power

    Customer told Coffee was dropped on it. Actually it looks really clean. However I noticed that if everything is plugged it gives me 5.15V on the power cord amp meter PPBUS = 0v. If I unplug that cable which connects the sound and I guess the power button to the board itself it goes to 20V...
  5. M

    iMac Display Screen

    Sorry to post on this category not sure where to post I tried a brand new screen and it works fine. Its also not the cable. Is there a way to fix this problem? iMac A1418 LATE 2013
  6. M

    820-4924 Backlight Problem

    Hello guys I have this Macbook Pro 820-4924 which doens't have image/backlight. Below are some measurments SMC_LID = 3.38v PPBUS = 12.53V Q7700 1 = 0V 2 = 0V 3 = 12.43 4 = 12.53 5 = 0V 6 = 0V DIODE MODE READINGS PIN 3/4 LCD CONNECTOR 0.484v REPLACE THE IC WITH A KNOW GOOD ONE STILL NO...
  7. M

    820-3787 works fine and then randomly crashes

    I went to youtube and saw this video Bought the 3 MOSFETS and went to replace it. However when removing the last one on the top right. I actually removed the middle ground pad. Not a bad thing but made me resolder it again 3 times. I think now its perfectly working. The problem is that I...
  8. M

    820-00165-02 - Seems to be NO BRAIN

    820-00165-02 Fan Spin = OK ALL MAIN RAILS ARE PRESENT AND AS IT SHOULD I ALREADY REPLACE BIOS IN ORDER TO GET IT WORKING NO SUCCESS CPU GETS HOTS Tried to check external image.. also NO IMAGE
  9. M

    820-3437B - Not turning on, no fan spin

    820-3437B Not turning on No fan spin All the main rails are present The only weird stuff is PP1V05_S0 and _SUS which are supposed to be 1.05V and both lines are 1.40V
  10. M

    820-00165 - Not turning on

    I 820-00615 not turning on PPBUS_G3H = 8.58 PP5V_S5 = 5.04v PP5V_S4 and S0 both turn on and after some seconds turn OFF FAN SPIN start normally and after some seconds it stop but its not QUARTERLY FAN SPIN. I already reballed the SMC and it had a lot of gray pads HISTORY: Customer had a...
  11. M

    Schematic iMac 820-3481-A

    Does anyone have this file? I need to work with one machine
  12. M

    820-4668 No POWER - PP5V_S0 missing

    iMac 820-4668 No Power Only FIRST LED showing up PP12V_G3H = 12.05V Replaced the SMC same behavior Power Rails as below PP12V_G3H = 12V PP12V_S5 = 12.05v pp5v_s5 = 5.1v PP3V3_S5 = 3.29V pp5v_s4 = 5.1v pp3v3_s4 = 3.29v pp12v_s0 = 12.05v PP1V2_S3 = 1.18V pp3v3_s0 = 0v pp5v_s0 =0v...
Top