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Philips 32pfl3606h/58 ON/OFF

Discussion in 'Troubleshooting and Repair' started by Nbdy, Oct 19, 2019.

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  1. Nbdy

    Nbdy

    4
    0
    Oct 19, 2019
    Hi,

    Have a 32pfl3606h/58 from philips,which when I plug him in turns on,and then off (1-2 sec) ...

    The PSU board looks OK,no damaged caps,no damaged fuses ...

    Tryed to measure the 24V,12V,5V where I on 5V get 12V ...

    any advice
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    9,668
    2,019
    Nov 17, 2011
    If that is truly the case and not due to a wrong measurement, the overvoltage on the 5 V line is likely to have burnt a few components in the meantime.
     
  3. Nbdy

    Nbdy

    4
    0
    Oct 19, 2019
    All seem OK,the PSU is single ...

    Do I have to short somthing to get the PSU to work ???
     
  4. Nbdy

    Nbdy

    4
    0
    Oct 19, 2019
    OK,after a remeasure there is 4.74V on 5V pin

    ENA - 50 mV
    DIM - 270 mV
    12V - 0V
    24V- 250 mV
    5V - 4.74V
    S/B - 0V
     
  5. 73's de Edd

    73's de Edd

    2,805
    1,176
    Aug 21, 2015
    Sir nobody . . . .

    Someone here !

    Pls confirm that I am using the correct schematic for that rare duck . . . .

    Wherein . . . . circuit wise . . . . .

    The units 24V and 12 V cold supplies are derived from an IC902 / NCP1271 that drives a Q901 FQPF3N80C

    The units +5V cold standby supply is derived from an IC901 / TNY274 that drives T902 transformer directly.

    The inverter power supply is being a separate circuit .

    If the above is correct, check and see if circuit associated C933/2200 [email protected] v or C934/47 ufd @50V havent gone "soft " on you. Expecting that 4.74 VDC SBY to rise on up.

    73's de Edd . . . . .


    The reason that cream costs so much more than milk . . . . is because its more involved and expensive to train the cows to sit on those dern small bottles.

    .
     
  6. Nbdy

    Nbdy

    4
    0
    Oct 19, 2019
    Last edited: Oct 19, 2019
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