Announcement

Collapse
No announcement yet.

BenQ FP731S No screen at all!

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

    BenQ FP731S No screen at all!

    I've got a BenQ FP731s that doesn't come up. Only green light. Not even the BENQ flash screen, nothing. Open it to see if there is any bad caps; nothing. Check the Fuse (2ah 250v) it's good.

    I'm a noob and I need help!

    Thanks

    #2
    Re: BenQ FP731S No screen at all!

    The FP731 are famous for bad solder joints on the inverter transformers, this leads to shorted transistors and a blown picofuse.
    You will need to test the transistors in the inverter section, as well as the picofuse.
    36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....

    Comment


      #3
      Re: BenQ FP731S No screen at all!

      Originally posted by smason View Post
      The FP731 are famous for bad solder joints on the inverter transformers, this leads to shorted transistors and a blown picofuse.
      You will need to test the transistors in the inverter section, as well as the picofuse.
      is it something we can "visually see"?

      Comment


        #4
        Re: BenQ FP731S No screen at all!

        No, you'll need to measure with a meter.
        36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....

        Comment


          #5
          Re: BenQ FP731S No screen at all!

          anybody have a website to know HOW to test electronic item, onboard and offboard!

          I would appréciate. Thanks. Now google time.

          Comment


            #6
            Re: BenQ FP731S No screen at all!

            Originally posted by Icitte View Post
            anybody have a website to know HOW to test electronic item, onboard and offboard!

            I would appréciate. Thanks. Now google time.
            Try checking out YouTube. There are many videos posted on how to use a meter to check various components.

            Comment

            Working...
            X