LM211P 机焊 出现发热现象 更换后（手焊）整个电子板功能正常。有100快板测试合格，不通电放在老化箱中，60度老化8小时。又出现3块板功能不正常。表现为发热，7脚电压1V左右（正常的板子不会发热，7脚电压17.5V）。测试环境室温20度。
↧
Channel:
放大器论坛 - 最近的话题
X
Are you the publisher?
Claim or
contact us
about this channel.
X
0
Channel Details:
- Title: 放大器论坛 - 最近的话题
- Channel Number: 62155573
- Language: Chinese
- Registered On: March 23, 2016, 12:00 am
- Number of Articles: 3845
- Latest Snapshot: May 10, 2022, 11:23 am
- RSS URL: http://www.deyisupport.com/question_answer/analog/amplifiers/f/52/rss.aspx?mode=0
- Publisher: https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum
- Description:
- Catalog: //undercoater66.rssing.com/catalog.php?indx=62155573
© 2025 //www.rssing.com