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オリジナル投稿者: arbaman ,

テキスト:

If you’re up for testing you can probe battery pins and see if you have the 8v and the 3.4v power lines. If you do you can rule out I/O board and you’ll know main power lines are up and running.  If you have no voltages it would be worth to try and replace the I/O board, such repair attempt would be quite cheap and easy to perform. In case of failure a component level troubleshooting or board replacement would be the two alternatives.

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