Announcement

Collapse
No announcement yet.

Logitech Z906 Power Supply

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    #21
    Re: Logitech Z906 Power Supply

    Originally posted by 1turk View Post
    what is z906 power suply volatage output pin ?
    +46v
    +46v
    gnd
    gnd
    +12v
    +5v

    Comment


      #22
      Re: Logitech Z906 Power Supply

      q16 là transitor or diot zenner ? thanks

      Comment


        #23
        Re: Logitech Z906 Power Supply

        Q means transistor

        Comment


          #24
          Re: Logitech Z906 Power Supply

          Do not replace D22 if it's not shorted and shows conduction one way only (around 450mV measured on diode range). Replace R29 and R45 2Ω resistors, R24 510Ω resistor (they are quite often burnt if Q1 and Q2 are shorted), five 0.330Ω/1206 resistors in parallel, Q1+Q2 and both 2.5A fuses. You may also need to replace the SL12 NTC thermistor as it is sometimes also affected on these PSU boards (you can see a burnt hole on its surface if damaged). The value of NTC is 10Ω. In some cases U1 is affected too and the PNP transistor next to it. The actual marking for this transistor is ZXTP25020CFH so it must be an exact replacement as it is specific 4A transistor in SOT23 case.
          Last edited by SERGEY1962; 05-05-2023, 07:32 AM. Reason: add some important info

          Comment

          Working...
          X