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  1. Djsp

    Question 820-02020 swap cpu and nand

    I would like to have some advice regarding the possibility of doing a swap of the processor and the NAND, is it possible to carry out the removal and installation of the M1 CPU without a BGA station, but with only the 861.. If possible, what temperature and speed do you recommend I use?
  2. Djsp

    A1990 no power 20v 0.03a

    Hi, I have this board that, gets 20v but loops 0.000 to 0.003a PPBUS 12.30, no liquid damage.
  3. Djsp

    820-01041 video artifacts

    I have this MacBook that has these artifacts when turned on but it boots and the touchbar displays the choices I can't understand the lcd problem I tested it on another board and it works the only anomaly I found it on pp1v5r1v35_s0_gpu_mem that in diode mode 0.204 and on a working board it is...
  4. Djsp

    820-01041 no power no dfu

    Hello I have this machine stopped on the 5v 0.09A on the usb ports on the right and 20v 0.02A on the usb ports on the left, Also the voltages wrong at U7800 are unstable or they are in loop between 0V and the nominal value PPBUS 12.57
  5. Djsp

    820-01041 video problem

    820-01041 with video problems turns on you can see the apple only a series of colored lines, I thought it was the typical problem of flex but I tried another good screen and it has the same suspicious defect a problem all gpu the tuch bar works and displays the keys, no external video
  6. Djsp

    Replace A1989 T2 to A1990

    Hello is it possible to use the T2 of an a1989 on a logic board of an a1990 obviously paying attention to the capacity of the T2 and ssd
  7. Djsp

    820-00928 PP3V3_S0_LEFT short

    I have this card going on 20v but with 0.001A I discovered a short on pp3v3_s0_left lifting u8295, mo I can't find the component in short how many Volts should I use to find it ?
  8. Djsp

    AON in PPDCIN_AON example

    Hi! What is meant by AON in PPDCIN_AON example
  9. Djsp

    820-00850 internal screen not working

    Hi, I have this machine where the internal video doesn't work, but I get the external video, I've already found myself in similar situations, and the damage seems to be a CPU data line. I get EDP_PANEL_PWR_BUF_EN, EDP_PANEL_PWR_BUF_EN, PP3V3_S0SW_LCD_R, DP_INT_HPD with their nominal value, the...
  10. Djsp

    A1708 820-00840 No Backlight

    Hello solved the problem of Flexgate by replacing lcd, but it does not have backlight, here are some measurements: PPVIN_S0SW_LCDBKLT_F = 13V PPVIN_S0SW_LCDBKLT =12V EDP_BKLT_EN= 0v BUF_EDP_PANEL_PWR_EN= 3.40v EDP_PANEL_PWR_EN= 3.10v PANEL_P3V3_EN_DLY= 3.29v
  11. Djsp

    A1707 820-00281 question folder

    Hello I checked U9310 all the output voltages are 0V I only get 1.5V on PP3V3_SSD_LIM
  12. Djsp

    A1707 820-00281 OS problem

    I have this card that works perfectly the only thing that in the Monterey installation once you enter the password, it tells me that it can't install an update and doesn't keep me
  13. Djsp

    820-00928 Without a CD3215

    Hello maybe a stupid question, this card can work without a cd3215, or they want you all 4, I've never fixed such a card
  14. Djsp

    820-00239 PPBUS_G3H

    Hi, I have this card that had a short on ppbus that I identified thanks to the Flir si C6505 the problem is that I do not have a replacement capacitor and wanting to recover it from a donor card there are only 22UF 6.3v or max 10v or 25v there are only polyester what do you recommend me to do?
  15. Djsp

    820-00165 Without image

    I have this card that turns on emits the boot sound the lcd panel turns on but no image, illuminated black screen, where you can see some rejections, I tried to change lcd but the result is the same.
  16. Djsp

    Macbook Air A1932 820-01521-A black screen

    Hi I have this machine with the black screen, usb meter goes to 20v and reaches 1.56 A caps lock makes the green light the screen remains black, I tried an external monitor but nothing. How can I proceed?
  17. Djsp

    820-3115 B green light no fan spin

    Hello I have a 820-3115-b with green light no fan spin ppbus_g3 12.55, from which I don't get PP5V_s3
  18. Djsp

    820-2838 no audio

    Hi in this card I encountered a strange problem, as OS X audio output gives me the headphone jack alone, I don't understand what the problem is and where to start, I just did the pram reset
  19. Djsp

    A1369 RAM issues

    I have a problem with this card, it presents the classic problem of graphic artifacts due to ram, I reballed much of the ram but I just mitigated the problem after about half an hour of operation under stress, the artifacts reappear, how can I check the memories and figure out which one fails?
  20. Djsp

    820-3115 B no lcd

    The board suffered liquid damage mainly on PPVOUT_SW_LCDBKLT, which corroded the tracks and also the pins of the lvds cable I replaced the lvds connector and used a 2010 model cable but on PPVOUT_SW_LCDBKLT I get 24 V only the led on the back but LCD does not display anything even the white...
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