Recent content by Djsp

  1. Djsp

    820-3115 B green light no fan spin

    PM_PWRBTN_L remains stable on 3.3v
  2. Djsp

    820-3115 B green light no fan spin

    The card initially had a short on pp3v42 due to u7941, solved 3V3_S5/SUS arepresent, on q7221 ho p5vs3_en_l 3.3v
  3. 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
  4. Djsp

    820-2838 no audio

    So I have to understand why when I insert the jack it reaches 4.5V which by the way must remain at 3.3 right?
  5. Djsp

    820-2838 no audio

    I measured AUD_IP_PERIPHERAL_DET with the 4.5V mi inserted headphones and with the headphones not inserted 3.0V but the system shows me only the earbuds as output
  6. Djsp

    820-2838 no audio

    With the preferences open I tried to disconnect and reconnect but nothing remains unchanged this with two different lio tabs
  7. Djsp

    820-2838 no audio

    Yes, just the headphones nothing else
  8. Djsp

    820-2838 no audio

    I also tried to change the LIO board to another is another flex but the result is the same. The boot sound does
  9. 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
  10. Djsp

    A1369 RAM issues

    So the CPU is gone? I started from a black screen with three beeps then this situation
  11. 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?
  12. Djsp

    820-3115 B no lcd

    L9080 had no continuity I replaced it and now it works regularly. Thank you
  13. 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...
  14. Djsp

    820-00138 no power no green light

    I checked SMBUS_SMC_5_G3_SCL and SMBUS_SMC_5_G3_SDA with the oscilloscope there is communication, so SMC should be ok now I try to replace the dc in and then I try with U7100
  15. Djsp

    820-00138 no power no green light

    When it enters the operational theme if it tells me that the battery has 86 cycles, can it also depend on a bad welding of the SMC?
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