傳感器 IC695ACC402CA
維修技巧之
維修經(jīng)驗(yàn)總結(jié)
一.帶程序的芯片
1.EPROM芯片一般不宜損壞.因這種芯片需要紫外光才能擦除掉程序,
故在測試中不會損壞程序.但有資料介紹:因制作芯片的材料所致,隨著
時間的推移(年頭長了),即便不用也有可能損壞(主要指程序).所以要
盡可能給以備份.
2.EEPROM,SPROM等以及帶電池的RAM芯片,均極易破壞程序.這類芯片
是否在使用<測試儀>進(jìn)行VI曲線掃描后,是否就破壞了程序,還未有定
論.盡管如此,同仁們在遇到這種情況時,還是小心為妙.筆者曾經(jīng)做過
多次試驗(yàn),可能大的原因是:檢修工具(如測試儀,電烙鐵等)的外殼漏電
所致.
3.對于電路板上帶有電池的芯片不要輕易將其從板上拆下來.
二.復(fù)位電路
1.待修電路板上有大規(guī)模集成電路時,應(yīng)注意復(fù)位問題.
2.在測試前裝回設(shè)備上,反復(fù)開,關(guān)機(jī)器試一試.以及多按幾次復(fù)
位鍵.
傳感器 IC695ACC402CA
IC695CPK330 |
IC695CPE330 |
IC695ACC402 |
IC695ACC652 |
IC695GCG001 |
IC695RMX228 |
IC695CEP001 |
IC695ECM850 |
IC695DEMP002 |
IC695PSD140 |
IC695PSD040 |
IC695ALG704 |
IC695ALG708 |
IC695PRS015 |
IC695ALG628 |
IC695ALG626 |
IC695PNS001 |
IC695ALG608 |
IC695PMM335 |
IC695PSA040 |
IC695NIU001 |
IC695ALG600 |
IC695NKT001 |
IC695PBM300 |
IC695PSA140 |
IC695MDL664 |
IC695ALG508 |
IC695HSC304 |
IC695HSC308 |
IC695ALG306 |
IC695FTB001 |
IC695LRE001 |
IC695MDL765 |
IC695PNC001 |
IC695NKT002 |
IC695DEM006 |
IC695DEM004 |
IC695ALG106 |
IC695ACC003 |
IC695ACC302 |
IC695PBS301 |
IC695ACC650 |
IC695CRH037 |
IC695ACC002 |
IC695CRH038 |
IC695ALG616 |
IC695ACC400 |
IC695CRH035 |
IC695CRH034 |
IC695CRH033 |
IC695CRH028 |
IC695ETM001 |
IC695CRH027 |
IC695CRH031 |
IC695CRH032 |
IC695CRH029 |
IC695CRH036 |
IC695CRH026 |
IC695CRH023 |
IC695CRH020 |
IC695CRH024 |
IC695CRH021 |
IC695CRU320 |
IC695CRH039 |
IC695CRH030 |
IC695CRH014 |
IC695CRH015 |
IC695ALG112 |
IC695CRH022 |
IC695CRH004 |
IC695CRH003 |
IC695CRH009 |
IC695CRH017 |
IC695CRH016 |
IC695CRH001 |
IC695CRH018 |
IC695CRH008 |
IC695CRH007 |
IC695CRH019 |
IC695CRH006 |
IC695CRH002 |
IC695STK010 |
IC695STK006 |
IC695CRH010 |
IC695CMM004 |
IC695CPE310 |
IC695ALG808 |
IC695DEM002 |
IC695CPE400 |
IC695ACC415 |
IC695ACC414 |
IC695ACC413 |
IC695ACC403 |
IC695CBL003 |
IC695CPK400 |
IC695EIS001 |
IC695EDS001 |
IC695ACC412 |
IC695CPE302 |
IC695CDEM006 |
IC695CPL410 |
IC695CKL410 |
IC695PNS101 |
FOXBORO FBM242 16通道觸點(diǎn)輸出(外部電源)接口組件(可選冗余) 可選冗余16DO |
FOXBORO FBM242 P0916TA |
FOXBORO FBM242 P0916TA |
FOXBORO FBM242? P0916TA |
FOXBORO FBM243 8通道雙向FOXCOM雙波特率智能設(shè)備接口組件 8IT |
FOXBORO FBM243 P0914TK |
FOXBORO FBM246 冗余8通道雙向FOXCOM雙波特率智能設(shè)備接口組件 冗余8IT |
FOXBORO FBM26/27 觸點(diǎn)/125V直流電壓輸入/輸出 8DI/8DO |
FOXBORO FBM39 智能變送器輸入/0-20MA輸出 4AI/4AO |
FOXBORO FBM41/42 觸點(diǎn)輸入/觸點(diǎn)輸出(2.25A) 8DI/8DO |
FOXBORO FBM46 冗余智能變送器輸入/0-20MA輸出 4AI/4AO |
FOXBORO FBM底板 P0926JM |
FOXBORO FCM100E P0972ZA |
FOXBORO FCM100Et P0926GS |
FOXBORO FCM100E電纜 P0972TR |
FOXBORO FCM10E |
FOXBORO FCP270(F)與FBM接口 |
FOXBORO FCP270(F)與FBM接口線 |
FOXBORO FCP底板 P0926HW |
FOXBORO FCS現(xiàn)場總線卡 |
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 |
FOXBORO FOXBORO P0940DK |
FOXBORO FOXBORO P0960HA |
FOXBORO FOXBORO P0960HA |
FOXBORO FOXBORO P0971FB |
FOXBORO FOXBORO P0971WV |
FOXBORO FOXBORO P0971WV |
FOXBORO FOXBORO P0972QM-0C |
FOXBORO FPS400-24電源P0922YU |
FOXBORO FPS400-24電源配件P0926DZ |
FOXBORO GCIO |
FOXBORO I/A 系統(tǒng)輸入輸出組件的種類 |
FOXBORO I/A卡件機(jī)架 |
FOXBORO K0173ZU |