logo elektroda
logo elektroda
X
logo elektroda

Seeking BM81203A Datasheet for Sony KDL-40R470A TV - Differences Between BM81203A & BM81204 Chips

rtv6 18630 1
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16448108
    rtv6
    Level 18  
    Hello
    For tv Sony KDL-40R470A I need a BM81204 chip. I ordered from a Chinese and just sent me BM81203A. I can't find the datasheet of this system anywhere.
    I have to BM81204. Maybe someone knows what is the difference between these chips, or has a BM81203A datasheet. Thank you and best regards.
  • ADVERTISEMENT
  • #2 16461964
    lisek
    Service technician RTV
    I suspect the same
    DC-DC to T-con for voltages
    Voff
    Vone
    Vcc3.3V
    Vcc1,2V
    Vin12v
    Vcc1,8V

    From what they write, is the Sony KDL-40R47xA / R48x series, RB1FK chassis on this T-con:
    T-con: KSZ80_0B_S4LV0.2
    * RT6503A, ctrl LQF6041T0B-Q1, BM81204
    and the S400DH1-2 matrix had a problem with the matrix.

    SM of this chassis on link
    Another problem is ceramic capacitors (e.g. the famous CD8 CD7) in the BM81204 application, 10ohm resistors
    and
    CKVi CKVB none >> is a problem in the matrix (short circuit inside), another "mine" from Samsung for Sony
    * unplug SKV STVP SKVB AVDD (through two coils_chokes), measure resistance


    Because this BM has an I2C bus> matez inside EEprom> all data is saved tensions, ...
     Seeking BM81203A Datasheet for Sony KDL-40R470A TV - Differences Between BM81203A & BM81204 Chips

    Here some time ago someone used "pencil and paper" and received (there may be mistakes)

     Seeking BM81203A Datasheet for Sony KDL-40R470A TV - Differences Between BM81203A & BM81204 Chips
    - transistor? HA58 (58A. FDC658AP / P-ch.) In the SOT23-6 housing is responsible for (after cross-over)
    HVDD, AVDD HVIN (12V) and VONE (4V)
    no 1.2V and 3.3V

    There is a datasheet on BM81004 (different pinology), the idea is the same
    - link
     Seeking BM81203A Datasheet for Sony KDL-40R470A TV - Differences Between BM81203A & BM81204 Chips
ADVERTISEMENT