ARC478A19 修理
Repair of ARC478A19
ARC478A19を修理した。ダイキンのエアコンのリモコンだ。I repaired the ARC478A19. It's the remote control for a Daikin air conditioner.
キーが殆ど利かなくなった。Most of the keys had stopped working.
電池ボックス内のネジを取り、カラ割する。カラは固く、マイナスドライバで壊さないように根気よく割っていく。I removed the screws inside the battery compartment and carefully split the case. The case was tough, so I patiently worked on it with a Phillips screwdriver to avoid breaking it.
基盤とキーパッド裏を中性洗剤につけてから、歯ブラシ等で清掃、乾燥させて組戻すと修理完了。I soaked the circuit board and key pad back in a neutral detergent, cleaned them with a toothbrush or similar tool, let them dry, and then reassembled them. The repair is now complete.
すべてのキーが問題なく利くようになった。All the keys are working perfectly again.