STANDARD C520 C528 how to repair if squelch is not working - iFixit 修理ガイド

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はじめに

Because of free running fluid out of broken caps some vias can get broken. Here I will show you how to solve problems with not-working sqelch on STANDARD C-520 and C-528.

手順1 Replacing capacitors and cleanup

STANDARD C520 C528 how to repair if squelch is not working, Replacing capacitors and cleanup: 手順 1、 1の画像 1

Cover the plastic-front against scratches and daamages.

手順2

STANDARD C520 C528 how to repair if squelch is not working: 手順 2、 1の画像 1

Loose the screws on the back and on the bottom

手順3

STANDARD C520 C528 how to repair if squelch is not working: 手順 3、 1の画像 1

Remove the screws, marked red. Locate the old capacitors, marked yellow. And locate the old battery, marked green.

手順4

STANDARD C520 C528 how to repair if squelch is not working: 手順 4、 1の画像 1

Replace the old caps. At best exchange to tantalium. The three caps on the left uper side and the above the CPU must be replaced against 220µF 6V. Replace the battery It is a wired CR2016.

手順5

STANDARD C520 C528 how to repair if squelch is not working: 手順 5、 1の画像 1

Next lets have a look on the RF-unit. Loose the screws and desolder the antenna connector. Unmount the board. Then locate and replace the caps.

手順6

STANDARD C520 C528 how to repair if squelch is not working: 手順 6、 1の画像 1

Remember to replace the cap bottom left as well. The marked trimmer is for freqeuncy-alignment

手順7 squelch is not working

STANDARD C520 C528 how to repair if squelch is not working, squelch is not working: 手順 7、 1の画像 1

If squelch on your STANDARD C-520 or C-528 is not working then check and repair the vias as shown in the picture.

終わりに

For more details how to dis- and reassemble pleace check the quide of recapping STANDARD C-520 and C-528 here on ifixit.com.

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ELKOBA

メンバー登録日: 06/24/23

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