HKSpot - Powered by Discuz! Board

標題: [硬件] 有冇人知ED係乜野漬?? [打印本頁]

作者: fo2live 時間: 2010-7-31 13:04 標題: 有冇人知ED係乜野漬??

上U時發現... 係唔係水漬? 太潮濕??

作者: wai-3-love 時間: 2010-7-31 13:20

之前PCB太熱整到?

PS:我之前都有,用火酒抹下佢無左

作者: fo2live 時間: 2010-7-31 13:22

部文書機一路都好少用, 好少開, 係由4轉6打開時先發現...

作者: cheungmanhoi 時間: 2010-7-31 14:17

xfx 9600gt/9800gt???

作者: ccw 時間: 2010-7-31 14:24

From Microworks, they are coating to protect the circuit.

作者: ccw 時間: 2010-7-31 14:32

My Asus Xonar Essence ST\'s PCB.
Used for about one month, it showed some white stain at the back especially around the components parts.
Before I sold it, I approach Microworks for what they are, and an engine replied me as above.

They turned white probably because the coating is sticky(I remember they were in the first touch) and some dust are stuck on it.

作者: sniperX 時間: 2010-7-31 14:37

引用:

原帖由 fo2live 於 2010-7-31 13:04 發表
上U時發現... 係唔係水漬? 太潮濕??

松香乾燥後漬. pcb上錫用松香. 上錫後會有部分透明狀濃縮松香在pcb上. 到濃縮松香上液體完全輝發後. 就是pcb上白色的東西.

作者: dom 時間: 2010-7-31 14:42

引用:

原帖由 fo2live 於 2010-7-31 13:04 發表
上U時發現... 係唔係水漬? 太潮濕??

洗板水洗過 PCB 者

作者: ccw 時間: 2010-7-31 14:43

引用:

原帖由 sniperX 於 2010-7-31 14:37 發表

松香乾燥後漬. pcb上錫用松香. 上錫後會有部分透明狀濃縮松香在pcb上. 到濃縮松香上液體完全輝發後. 就是pcb上白色的東西.

明白了，唔係壞都好啲

歡迎光臨 HKSpot (https://bbs.hk-spot.com/)