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If your Kenwood DNX571HD car stereo is having difficulty connecting to AM/FM radio, the radio antenna connection may be faulty. Follow this guide to replace it.

  1. Unscrew the four 3.5mm side screws with a Phillips #1 screwdriver. There are two screws per side.
    • Unscrew the four 3.5mm side screws with a Phillips #1 screwdriver.

    • There are two screws per side.

  2. Use a spudger to unhook the plastic clips on the sides and top of the front panel. There are two clips on each side and one clip on the top. Place the spudger between the plastic tab and the metal case and gently lift the spudger away from the case. Place the spudger between the plastic tab and the metal case and gently lift the spudger away from the case.
    • Use a spudger to unhook the plastic clips on the sides and top of the front panel. There are two clips on each side and one clip on the top.

    • Place the spudger between the plastic tab and the metal case and gently lift the spudger away from the case.

  3. Pull the top of the front panel out and down to remove front panel.
    • Pull the top of the front panel out and down to remove front panel.

    • Remove the front panel gently so as not to damage the ribbon cables behind it.

  4. Unscrew the three 5mm screws from the top of the device using a Phillips #1 screwdriver. Lift up to remove the top casing. Lift up to remove the top casing.
    • Unscrew the three 5mm screws from the top of the device using a Phillips #1 screwdriver.

    • Lift up to remove the top casing.

  5. Lift the CD drive carefully to expose the attached cable underneath.
    • Lift the CD drive carefully to expose the attached cable underneath.

  6. Flip up the black clasp with a spudger to disconnect the large white ribbon cable connecting the CD drive to the board underneath. Flip up the black clasp with a spudger to disconnect the large white ribbon cable connecting the CD drive to the board underneath.
    • Flip up the black clasp with a spudger to disconnect the large white ribbon cable connecting the CD drive to the board underneath.

  7. Carefully unplug the fan power cord with the tweezers.
    • Carefully unplug the fan power cord with the tweezers.

  8. Unscrew the three 5mm length screws with the Phillips #1 screwdriver. Remove the metal plate
    • Unscrew the three 5mm length screws with the Phillips #1 screwdriver.

    • Remove the metal plate

    • Removing the plate will damage the heat sink compound. This will need to be replaced during reassembly.

  9. Unscrew the three 5.5mm long screws with a Phillips #1 screwdriver. Unscrew the three 5.5mm long screws with a Phillips #1 screwdriver.
    • Unscrew the three 5.5mm long screws with a Phillips #1 screwdriver.

  10. Remove the four 5.5mm screws with the Phillips #1 screwdriver. Remove the four 5.5mm screws with the Phillips #1 screwdriver. Remove the four 5.5mm screws with the Phillips #1 screwdriver.
    • Remove the four 5.5mm screws with the Phillips #1 screwdriver.

  11. Lift the top part of the unit up from the lower chassis.
    • Lift the top part of the unit up from the lower chassis.

  12. Remove the two 13mm long screws with a Phillips #1 screwdriver. Gently thread the power cable through the circuit boards to separate the fan from the body of the stereo.
    • Remove the two 13mm long screws with a Phillips #1 screwdriver.

    • Gently thread the power cable through the circuit boards to separate the fan from the body of the stereo.

  13. Desolder and remove the radio antenna from the motherboard.
    • Desolder and remove the radio antenna from the motherboard.

    • The radio antenna is a thru-hole-mounted device. You must apply heat to each soldered pin individually and pull them out of the holes while the solder is molten.

    • The solder material, pins, and any surrounding material will get VERY hot while melting the connections. Do not touch any metal parts during the desoldering process and give the device time to cool off once you’re finished. It may also be good to take breaks so that the electronics aren’t kept hot for extended periods of time.

Sonuç

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

Wendy Zaballos

Üyelik tarihi: 17-09-2018

838 İtibar

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