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CHI Original Circuit Board Replacement

CHI Original Circuit Board Replacement

Eric Knigga

crwdns2944107:0crwdnd2944107:0Eric Kniggacrwdnd2944107:0crwdnd2944107:0crwdnd2944107:02crwdnd2944107:0crwdne2944107:0

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This guide will show you the steps necessary to deconstruct and replace the circuit board for this part.

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  1. CHI Original Circuit Board Replacement, Hinge Spring: crwdns2935265:01crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 CHI Original Circuit Board Replacement, Hinge Spring: crwdns2935265:01crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Insert a nylon or metal spudger under the plastic CHI spring covers. Pry them up to pop them off. Do this for each side.

    Where do I find a new power cord?

    ElenaStar* - crwdns2934203:0crwdne2934203:0

  2. CHI Original Circuit Board Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Remove the .53" long screw from the hinge pin.

    This picture is out of order

    fixitman - crwdns2934203:0crwdne2934203:0

    You should only have to remove the back two screws and not any screws near the switch.

    fixitman - crwdns2934203:0crwdne2934203:0

  3. CHI Original Circuit Board Replacement: crwdns2935265:03crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Remove the hinge pin.

  4. CHI Original Circuit Board Replacement: crwdns2935265:04crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Separate the two halves of the CHI Original.

  5. CHI Original Circuit Board Replacement: crwdns2935265:05crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 CHI Original Circuit Board Replacement: crwdns2935265:05crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
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    Tweezers
    $4.99
    • Remove the spring pin with a pair of pliers or tweezers.

    • Remove the spring.

  6. CHI Original Circuit Board Replacement, Power Cord: crwdns2935265:06crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 CHI Original Circuit Board Replacement, Power Cord: crwdns2935265:06crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Remove (2) .31" Phillips head screws from back cover.

    • Remove cover.

  7. CHI Original Circuit Board Replacement: crwdns2935265:07crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Gently pull upwards on the connection point and disconnect the power cord.

    What is part this person is holding in his right hand then clear part

    Rafael - crwdns2934203:0crwdne2934203:0

  8. CHI Original Circuit Board Replacement, Circuit Board: crwdns2935265:08crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 CHI Original Circuit Board Replacement, Circuit Board: crwdns2935265:08crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 CHI Original Circuit Board Replacement, Circuit Board: crwdns2935265:08crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Remove the (2) .27" Phillips head screws on each half of the CHI Original.

  9. CHI Original Circuit Board Replacement: crwdns2935265:09crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 CHI Original Circuit Board Replacement: crwdns2935265:09crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 CHI Original Circuit Board Replacement: crwdns2935265:09crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Remove the covers on both halves.

  10. CHI Original Circuit Board Replacement: crwdns2935265:010crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Remove (2) .15" Phillips screws from the circuit board.

  11. CHI Original Circuit Board Replacement: crwdns2935265:011crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 CHI Original Circuit Board Replacement: crwdns2935265:011crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Desolder all points of contact between the circuit board and wires on the ceramic heating elements.

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To reassemble your device, follow these instructions in reverse order.

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Eric Knigga

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IUPUI, Team S1-G2, Freund Fall 2017 crwdns2935289:0IUPUI, Team S1-G2, Freund Fall 2017crwdne2935289:0

IUPUI-FREUND-F17S1G2

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I used most of this guide through step 10 after dropping this in water; I didn't take out the power cord. I left the partially disassembled straightener in a container with desiccant overnight to remove the moisture. There was some corrosion on the switch that prevented the device from turning off that I cleaned up with isopropyl alcohol . I confirmed the switch behavior before and after cleaning with a multimeter to check continuity. On my device, the contact closest to the heating element was supposed to be disconnected from the other two contacts when off; when on, they were all showing contact. Before cleaning, there was continuity between all contacts. Thanks for the guide.

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