电缆 150-C30NBD-NC
维修技巧之
维修经验总结
一.带程序的芯片
1.EPROM芯片一般不宜损坏.因这种芯片需要紫外光才能擦除掉程序,
故在测试中不会损坏程序.但有资料介绍:因制作芯片的材料所致,随着
时间的推移(年头长了),即便不用也有可能损坏(主要指程序).所以要
尽可能给以备份.
2.EEPROM,SPROM等以及带电池的RAM芯片,均极易破坏程序.这类芯片
是否在使用<测试仪>进行VI曲线扫描后,是否就破坏了程序,还未有定
论.尽管如此,同仁们在遇到这种情况时,还是小心为妙.笔者曾经做过
多次试验,可能大的原因是:检修工具(如测试仪,电烙铁等)的外壳漏电
所致.
3.对于电路板上带有电池的芯片不要轻易将其从板上拆下来.
二.复位电路
1.待修电路板上有大规模集成电路时,应注意复位问题.
2.在测试前装回设备上,反复开,关机器试一试.以及多按几次复
位键.
电缆 150-C30NBD-NC
| 150-C16NBR |
| 150-C16NCD |
| 150-C16NCR |
| 150-C19NBD |
| 150-C19NBR |
| 150-C201NBD |
| 150-C201NBR |
| 150-C201NCD |
| 150-C201NCR |
| 150-C234NCA-K2 |
| 150-C234NCD-K1 |
| 150-C251NBD |
| 150-C251NBR |
| 150-C251NCD |
| 150-C25NBD |
| 150-C25NBR |
| 150-C25NCD |
| 150-C25NCR |
| 150-C30NBD |
| 150-C30NBD-NC |
| 150-C30NBR |
| 150-C30NCD |
| 150-C30NCR |
| 150-C317NBD |
| 150-C317NBR |
| 150-C317NCD |
| 150-C361NBD |
| 150-C361NBR |
| 150-C361NCD |
| 150-C37NBD |
| 150-C37NBD-NC |
| 150-C37NBR |
| 150-C37NCR |
| 150-C3NBD |
| 150-C3NBR |
| 150-C3NCD |
| 150-C43NBD |
| 150-C43NBD-NC |
| 150-C43NBR |
| 150-C43NCD |
| 150-C43NCR |
| 150-C480NBD |
| 150-C480NBR |
| 150-C480NCD |
| 150-C480NCR |
| 150-C60FBD |
| 150-C60NBD |
| 150-C60NBD-NC |
| 150-C60NBR |
| 150-C60NCD |
| 150-C60NCR |
| 150-C84 |
| 150-C84P |
| 150-C85NBD |
| 150-C85NBR |
| 150-C85NCD |
| 150-C86 |
| 150-C9NBD |
| 150-C9NBR |
| 150-C9NCD |
| 150-C9NCR |
| 150-CA01 |
| 150-CA11 |
| 150-CC25 |
| 150-CF147 |
| 150-CF45 |
| 150-CF64 |
| 150-CI23 |
| 150-CI37 |
| 150-CS1AX |
| FOXBORO FBM241 P0914TG |
| FOXBORO FBM241 P0914TG |
| FOXBORO FBM241b 8通道电压监视输入，8通道离散量输出（内部电源） 8DI/8DO |
| FOXBORO FBM241b P0914WK |
| FOXBORO FBM241c 8通道触点输入，8通道离散量输出（外部电源） 8DI/8DO |
| FOXBORO FBM241d 8通道触点输入，8通道离散量输出（内部电源） 8DI/8DO |
| FOXBORO FBM242 16通道触点输出（外部电源）接口组件（可选冗余） 可选冗余16DO |
| FOXBORO FBM242 P0916TA |
| FOXBORO FBM242 P0916TA |
| FOXBORO FBM242? P0916TA |
| FOXBORO FBM243 8通道双向FOXCOM双波特率智能设备接口组件 8IT |
| FOXBORO FBM243 P0914TK |
| FOXBORO FBM246 冗余8通道双向FOXCOM双波特率智能设备接口组件 冗余8IT |
| FOXBORO FBM26/27 触点/125V直流电压输入/输出 8DI/8DO |
| FOXBORO FBM39 智能变送器输入/0-20MA输出 4AI/4AO |
| FOXBORO FBM41/42 触点输入/触点输出（2.25A） 8DI/8DO |
| FOXBORO FBM46 冗余智能变送器输入/0-20MA输出 4AI/4AO |
| FOXBORO FBM底板 P0926JM |
| FOXBORO FCM100E P0972ZA |
| FOXBORO FCM100Et P0926GS |
| FOXBORO FCM100E电缆 P0972TR |
| FOXBORO FCM10E |
| FOXBORO FCP270（F）与FBM接口 |
| FOXBORO FCP270（F）与FBM接口线 |
| FOXBORO FCP底板 P0926HW |
| FOXBORO FCS现场总线卡 |
| FOXBORO FOBORO P0400VT |
| FOXBORO FOXBORO CFT10 I/A |
| FOXBORO FOXBORO DO117KP |
| FOXBORO FOXBORO FPS400-24 |
| FOXBORO FOXBORO 83W-D01S1SSTNA |
| FOXBORO FOXBORO P0400DL |
| FOXBORO FOXBORO P0400DL |
| FOXBORO FOXBORO P0400QA |
| FOXBORO FOXBORO P0400QJ |
| FOXBORO FOXBORO P0400QK |
| FOXBORO FOXBORO P0400QK |
| FOXBORO FOXBORO P0400VP |
| FOXBORO FOXBORO P0400VR |
| FOXBORO FOXBORO P0400VT |
| FOXBORO FOXBORO P0400YP |
| FOXBORO FOXBORO P0400YT |
| FOXBORO FOXBORO P0400YV |
| FOXBORO FOXBORO P0700WB |
| FOXBORO FOXBORO P0700WB |
| FOXBORO FOXBORO P0800DA |
| FOXBORO FOXBORO P0901VK |
| FOXBORO FOXBORO P0902DZ |
| FOXBORO FOXBORO P0903ZE |
| FOXBORO FOXBORO P0904AJ |
| FOXBORO FOXBORO P0911AC |
| FOXBORO FOXBORO P0911PU |
| FOXBORO FOXBORO P0911VW MIW GCIO |
| FOXBORO FOXBORO P0911ZZ |
| FOXBORO FOXBORO P0912HM |
| FOXBORO FOXBORO P0913ED |
| FOXBORO FOXBORO P0914XA |
| FOXBORO FOXBORO P0914ZM |
| FOXBORO FOXBORO P0961CA |
| FOXBORO FOXBORO PM400VP |
| FOXBORO FOXBORO PM400YP |
| FOXBORO FOXBORO PM700WB |
| FOXBORO FOXBORO P0700WB |
| FOXBORO FOXBORO P0700WB |
| FOXBORO FOXBORO P0903ZE |
| FOXBORO FOXBORO P0903ZE |
| FOXBORO FOXBORO P0940BR |
| FOXBORO FOXBORO P0940BW |
| FOXBORO FOXBORO P0940DH |
