Marshall Monitor Headset Audio Cable Repair

はじめに

Under conditions of repeated use, the cable connecting the left and right Marshall headphones ends up breaking one one or both sides as a result of stress at the point where it enters the headphone caused by folding them. As a result, audio output will be reduced to a single ear.

This guide teaches you how to repair the damaged part of the cable in order to regain the use of the stereo. It will take dexterity, a soldering iron, and a little patience.

必要な工具と部品

手順1 Faulty audio cable between Ear Cups

Marshall Monitor Headset Audio Cable Repair, Faulty audio cable between Ear Cups: 手順 1、 3の画像 1

Marshall Monitor Headset Audio Cable Repair, Faulty audio cable between Ear Cups: 手順 1、 3の画像 2

Marshall Monitor Headset Audio Cable Repair, Faulty audio cable between Ear Cups: 手順 1、 3の画像 3

Examine the point at which the cable enters the housing to identify the location of the damaged part of the cable.

翻訳

手順2

Marshall Monitor Headset Audio Cable Repair: 手順 2、 3の画像 3

Remove the foam cushion and remove the 4 screws with a Torx screwdriver.
Be careful to carefully remove the upper part of the headset.

翻訳

手順3

Marshall Monitor Headset Audio Cable Repair: 手順 3、 3の画像 3

Unsolder the faulty cable connections.
Two of the wires are soldered to the transducer (one for ground and one for signal). The third is connected to the input of the 3.5 mm audio jack.
Remove the inner foam and undo the cable knot to take it out of the headset.

翻訳

手順4

Marshall Monitor Headset Audio Cable Repair: 手順 4、 3の画像 3

Cut the cable upstream of the damaged area and remove 10mm of insulation.
Prepare the wires for soldering. For this, the enamel that isolates the wires from each other must be removed using medium to fine grain sandpaper (120 - 180gr).
Next, tin the 3 wires.

翻訳

手順5

Marshall Monitor Headset Audio Cable Repair: 手順 5、 3の画像 3

Solder the 3 replacement wires and mark the corresponding color.
Isolate the 3 solder points by placing the heat shrink tubing on each solder joint.
Cover the three wires with another piece of heat shrink tubing.

翻訳

手順6

There is a good chance that the diameter of the replacement cable will be greater than the original. In that case it will be necessary to remove the original gold cable grommet (it is decorative anyway).

翻訳

手順7

Marshall Monitor Headset Audio Cable Repair: 手順 7、 3の画像 3

Reinsert the cable into the headset
Solder the wires to their original locations
Place a dot of hot glue where the new cable passes through to hold it in place and avoid strain on the connections.