商铺名称:厦门盈亦自动化科技有限公司
联系人:刘莉(小姐)
联系手机:
固定电话:
企业邮箱:3001679289@qq.com
联系地址:厦门市集美区杏林禹州中央海岸一期5号楼923室
邮编:361022
联系我时,请说是在电子快手网上看到的,谢谢!
IC830M21C-KKBNAB00控制器
在无任何原理图状况下要对一块比较陌生的电路板进行维修,以往的所谓“经验”就难有作为,尽管硬件功底深厚的人对维修充满信心,但如果方法不当,工作起来照样事倍功半。那么,怎样做才能提高维修效呢?根据我公司进口设备维修中心统计出来的资料,应遵循以下几个步骤、按顺序有条不紊的进行。
方法一:先看后量
使用工具:万用表、放大镜
当手拿一块待修的电路板,良好的习惯首先是应对其进行目测,必要时还要借助放大镜,看什么呢?
主要看:
1、是否有断线;
2、分力元件如电阻、电解电容、电感、二极管、三极管等时候存在断开现象;
3、电路板上的印制板连接线是否存在断裂、粘连等;
4、是否有人修过?动过哪些元器件?是否存在虚焊、漏焊、插反等操作方面的失误;
在确定了被修无上述状况后,首先用万用表测量电路板电源和地之间的阻值,通常电路板的阻值都在70-80?以上,若阻值太小,才几个或十几个欧姆,说明电路板上有元器件被击穿或部分击穿,就必须采取措施将被击穿的元器件找出来。具体办法是给被修板供电,用手去摸电路板上各器件的
温度,烫手的讲师重点怀疑对象。若阻值正常,用万用表测量板上的阻、二极管、三极管、场效应管、拨段开关等分力元件,其目的就是首先要确保测量过的元件是正常的,我们的理由是,能用万用表解决的问题,就不要把它复杂化。
IC830M21C-KKBNAB00控制器
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IC830M62L-EKC2AB00 |
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IC830M62L-EK92GF00 |
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IC830M21C-KKB2AB00 |
IC830M21C-KK9NGF00 |
IC830M21C-KK9NCA00 |
IC830M21C-KK92GF00 |
IC830M21C-KK92CA00 |
IC830M62L-BKCNAB00 |
IC830M62L-BKC2AB00 |
IC830M62L-BK9NGF00 |
IC830M62L-BK9NCA00 |
IC830M62L-BK92GF00 |
IC830M62L-BK92CA00 |
IC830M62K-BKCNAB00 |
IC830M62K-BKC2AB00 |
IC830M62K-BK9NGF00 |
IC830M62K-BK9NCA00 |
IC830M62K-BK92GF00 |
IC830M62K-BK92CA00 |
IC830M62H-EKCNAB00 |
IC830M62H-EKC2AB00 |
IC830M62H-EK9NGF00 |
IC830M62H-EK9NCA00 |
IC830M62H-EK92GF00 |
CACR-PR02AD3NR |
CACR-PR03AA4AH |
CACR-PR03BCAF |
CACR-PR05AA4AH |
CACR-PR05BCAF |
CACR-PR20BCAF |
CACR-PR30BCAF |
CACR-PRA5AA4AH |
CACR-SR01AA2AH |
CACR-SR01AB1ER |
CACR-SR01AE1ER |
CACR-SR01AY1SR |
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CACR-SR02AD1FR |
CACR-SR02AY1SR |
CACR-SR03AA2AH |
CACR-SR03AB1ER |
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CACR-SR03AC1ER |
CACR-SR03AC1FU |
CACR-SR03AD1KR |
CACR-SR03BB1AF |
CACR-SR03BB1AM |
CACR-SR03BB1BF |
CACR-SR03BB1CS |
CACR-SR03BB1ES |
CACR-SR03BB1HS |
CACR-SR03BC1AM |
CACR-SR03BC1ES |
CACR-SR03BE12M |
CACR-SR03SB1AF |
CACR-SR03SB1BF |
CACR-SR03SZ1SS |
CACR-SR03TB5BM |
CACR-SR03TZ0SM |
CACR-SR03TZ6SF |
CACR-SR03TZ6SS |
CACR-SR05AA2AH |
CACR-SR05AB1ER |
CACR-SR05AC1ER |