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New heatsinks not touching chip surface and fall of again.

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Chris de Voogd
Chris de Voogd Member ✭✭
edited June 2020 in FLEX-6000 Signature Series
I executed the heatsink modification according instructions. The 2 old ones were both lying on the bottom. Then I glued the new ones on top of the chips and pressed gently. Done? I started to close the case but suddenly one of the heatsinks fell of again! After closely investigating I noticed that some surrounding SMD parts are (L2, L3, C11) higher then the surface of the chip! In other words it is not possible to mount the heatsink in such a way that it touches the chip. The only solution is to cut the new heatsink to fit the chip. Do I have different pc boards or why did not anybody else has this problem? What I‘m doing wrong? Chris DJ2NL

Comments

  • Manuel Maseda
    Manuel Maseda Member ✭✭
    edited May 2019
    Options
    The new heatsinks go on the back of the board, not on top of the chips.
  • Chris de Voogd
    Chris de Voogd Member ✭✭
    edited June 2018
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    **** me, thanks.
  • Albert PA0A
    Albert PA0A Member ✭✭
    edited June 2018
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    Oops
  • Art - N4QNT
    Art - N4QNT Member ✭✭
    edited November 2019
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    Please watch this How-To Video>>>>>>>> https://www.youtube.com/watch?v=cKKkFkhmFps
  • WX7Y
    WX7Y Member ✭✭✭✭
    edited June 2020
    Options
    The pictures on the included instruction sheet show the proper placement of the heat sinks on the back of the Circuit board. 

  • Russ K5OA
    Russ K5OA Member ✭✭
    edited June 2018
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    completed in 15 minutes, takes more to get those 14 little screws out and back.
  • Wayne
    Wayne Member ✭✭
    edited June 2018
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    No hams read instructions we already know everything :-)
  • Jay Nation
    Jay Nation Member ✭✭
    edited May 2019
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    Which is how hams find out what they don't know, but should. image

    And might not remember next time.

    #FlexRadio IRC chat

       73, Jay - NO5J

  • Gary L. Robinson
    Gary L. Robinson Member ✭✭
    edited June 2018
    Options
    Some of us hams do read the instructions ...  but ONLY years later hihi

    ---Gary WB8ROL

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