HELP.....N70 matot

Discussion in 'BB5' started by ilham_axl, Sep 29, 2010.

  1. ilham_axl

    ilham_axl Active Member

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    Help dung master2.
    Dpt n70 awalny matot gara2 ngecas kelamaan.
    Trnyta tahvo bermslh.
    Aq gnt tahvo ok.
    Tp skrng hp matot.
    Pas switch on off di tekan tegangan vio,vana,vdram dll ok semua.
    Ampere berada di 0,10ma.
    Di check di flasher trnyta 1st boot error,bad resp rapx.
    Help dong...
     
  2. dutagsm

    dutagsm Moderator Moderator

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    sepertinya RAP gak Booting.....

    pastikan =
    1. Teg. VDRAM dari RETU ada => SDRAM & Combo Flash
    2. Teg. VIO dari RETU ada => NOR Flash, SDRAM, Combo Flash, RAP & OMAP
    3. Teg. PURX dari RETU ada => RAP & OMAP
    4. Teg. RESTX dari RETU ada => TAHVO & SMPS Vcore
    5. Teg SLEEP Clock dari RETU ada=> RAP & OMAP
    6. Pastikan Vbat ada untuk semua yg membutuhkan, jalur BSI ok.....
    7. Teg Vcore dari Tahvo ada => RAP
    8. Teg. VcoreA dari SMPS ada => OMAP (yg ini bs diabaikan , kalau gak normal biasanya hp masih nyala tapi blank putih)...

    itu kira2 yg mesti ada agar hp bs booting/ nyala....

    koreksi jk ada kesalahan.......
     
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  3. pitoecell

    pitoecell New Member

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    coba tahvonya diganti lg bos.........
     
  4. tlogo

    tlogo Well-Known Member

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    ..TU boss duta udah jelas peneranganya tinggal tunggu hasilnya..
     
  5. ilham_axl

    ilham_axl Active Member

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    Kykny tegangan ny ok semua bos.
    VD RAM dari c2219 1,8v.
    Vio dari c2215 1,8v
    Vcore dr tahvo 1,4v
    Purx dr retu di c2235 1,8v.
    Vana dr c7618 2,5v.
    Jalur vbatt ma bsi ok semua bos.
    Tp mo ngukur tegangan restx,sleep clock ama ny g tau bos gmn.
     
  6. dutagsm

    dutagsm Moderator Moderator

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    untuk restX ukur di J2218 dan Sleepclock bs diukur di R7558 dan C7617...(liat skema) ...
     
  7. ilham_axl

    ilham_axl Active Member

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    restX di j2218 4,0v
    Sleep clock di c7616 1,02v.
     
  8. dutagsm

    dutagsm Moderator Moderator

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    C7616 itu VDRAM boss, mestinya ada teg. 1.8V....
     
  9. rudifast

    rudifast TALK LESS DO MORE Product Supporter

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    sleepclk ngukure kok pake V?itu clock frekuensi om:)
    harusnya pake Frek.counter dapetnya 32,7khz
    kalo sleepx baru bener 1,8v.

    n70 sering ngeblong di vcore smps om,
    cangkok dari vcore tahvo aja.
     

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