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Philips 32Pfl3107 - No picture, voice ok, matrix backlight ok

sebastian.los 6594 8
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 16562873
    sebastian.los
    Level 19  
    Hello
    I have a problem with the Philips 32PFL3107 TV, chassis tpm9.2e, LTA320AP33 matrix.
    After switching on, no picture, voice ok, matrix backlight ok, power supply on the matrix approx.
    If I disconnect the lvds cable for a moment, then after reconnecting I have a picture but not changing, i.e. freeze-frame.

    I thought that maybe someone changed the matrix settings, but after setting the appropriate matrix, the symptom is the same.
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  • #2 16562962
    SERVICE-AV
    Level 39  
    Looks like a matrix but look for more about main and this matrix
  • #3 16677409
    sebastian.los
    Level 19  
    On matrices? Broken glass or electronics?
    Someone has written tensions on Tcon?

    Is Panel code for LTA320AP33 # 181?
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  • #4 16677430
    GanCegall
    Level 38  
    sebastian.los wrote:
    Philips 32PFL3107 chassis tpm9.2e LTA320AP33 matrix

    What main?
  • #5 16677599
    sebastian.los
    Level 19  
    Main 715G5784-M01-000-005K
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  • #6 16678145
    lisek
    Service technician RTV  
    Quote:
    supply voltage on the dies approx.

    And on the T-con 12A320AP32S4L V0.2, combined with the matrix, you measured:
    - you have tension and good? (SM4151 + ctrl LAXC021T2B-01), see datasheets
    * SM4152 = RT6905
    * SM4151 a bit different
    - it wasn't flooded sometimes (look for traces)

    Fits T-con under dies: LTA320AP32

    _______________
    standardly:
    1.8V, 3.3V, 12V
    VOFFE (-12) V
    VONEok.25-27V
    HAVDD 6.1V
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  • #7 16678517
    sebastian.los
    Level 19  
    There are no signs of flooding.
    Does anyone have value to power this T-con?
  • #8 16678601
    lisek
    Service technician RTV  
    LTJ320AP03-L has T-con
    T-CON: 32AP04S4LV0.2 on the matrix
    LAXC021T2B-Q1
    24C64WP
    SM4151 (gives at least 3.3V / ... (VONE, VOFFE, AVDD) / = * RT6906?
    SM4151 control signals go with ctrl on its pin. 25-36.
    17987

    Usually on these t-con the problem with the above ctrl.
    See page 25 of appendix.
    ____________________________
    Read link

    T-CON 60A320S2LV0.4 under LTA320AN08
    T-con 32AP04S4LV0.2 for LTJ320APO3 matrix
    VIN-12V
    * 1.2, 1.5, 1.8V
    VCOM- 6.8V
    VCST- 6.2V
    CVO- 6.8V
    STV- 0V
    CPV1- 2.7V
    CPV2- 2.7V
    AP_SYNC- OV
    TRDV- 3.3V
    PST- 3.3V
    DCC- 0V
    ACC- 0V
    AGI_EN- 3.3V
    HAVDD- 7.5V
    VON- 28V
    AYDD- 15V
    VDD- 3.3V
    STVP- 11V
    HGT- 7.6V
    Attachments:
  • #9 16795624
    sebastian.los
    Level 19  
    After replacing the SM4151 chip, the TV works fine.
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Topic summary

The Philips 32PFL3107 TV is experiencing a no-picture issue while audio and matrix backlight function correctly. The user reports that disconnecting and reconnecting the LVDS cable temporarily restores the picture, but it remains frozen. Discussions among participants suggest checking the main board (model 715G5784-M01-000-005K) and the T-con board (model 12A320AP32S4L V0.2) for proper voltage levels and potential faults. Measurements of various voltages on the T-con board are recommended, and it was noted that there were no signs of flooding. Ultimately, replacing the SM4151 chip resolved the issue, restoring full functionality to the TV.
Summary generated by the language model.
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