190S-ANEJ2-CC10C-KN電纜
.組合代換
組合代換就是把同一型號的多塊IC內(nèi)部未受損的電路部分,重新組合成一塊完整的IC,用以代替功能不良的IC的方法。對買不到原配IC的情況下是十分適用的。但要求所利用IC內(nèi)部完好的電路一定要有接口引出腳。
非直接代換關(guān)鍵是要查清楚互相代換的兩種IC的基本電參數(shù)、內(nèi)部等效電路、各引腳的功能、IC與外部元件之間連接關(guān)系的資料。實(shí)際操作時予以注意:
⑴集成電路引腳的編號順序,切勿接錯;
⑵為適應(yīng)代換后的IC的特點(diǎn),與其相連的外圍電路的元件要作相應(yīng)的改變;
⑶電源電壓要與代換后的IC相符,如果原電路中電源電壓高,應(yīng)設(shè)法降壓;電壓低,要看代換IC能否工作。
⑷代換以后要測量IC的靜態(tài)工作電流,如電流遠(yuǎn)大于正常值,則說明電路可能產(chǎn)生自激,這時須進(jìn)行去耦、調(diào)整。若增益與原來有所差別,可調(diào)整反饋電阻阻值;
⑸代換后IC的輸入、輸出阻抗要與原電路相匹配;檢查其驅(qū)動能力。
⑹在改動時要充分利用原電路板上的腳孔和引線,外接引線要求整齊,避免前后交叉,以便檢查和防止電路自激,特別是防止高頻自激;
[7]在通電前電源Vcc回路里再串接一直流電流表,降壓電阻阻值由大到小觀察集成電路總電流的變化是否正常。
190S-ANEJ2-CC10C-KN電纜
190S-AND2-CB40C |
190S-AND2-CB40C-KN-V |
190S-AND2-CB40D-TE |
190S-AND2-CB63C |
190S-AND2-CC10C-R |
190S-ANEJ1-CB16C |
190S-ANEJ1-CB25C |
190S-ANEJ1-CB40C |
190S-ANEJ1-CB63C |
190S-ANEJ1-CC10C |
190S-ANEJ1-JC10C-KY |
190S-ANEJ2-CA63C |
190S-ANEJ2-CA63S-KN |
190S-ANEJ2-CB10C |
190S-ANEJ2-CB16C |
190S-ANEJ2-CB16C-KN |
190S-ANEJ2-CB25C |
190S-ANEJ2-CB25C-KN |
190S-ANEJ2-CB25C-TE |
190S-ANEJ2-CB40C |
190S-ANEJ2-CB40C-KN |
190S-ANEJ2-CB63C |
190S-ANEJ2-CB63C-KN |
190S-ANEJ2-CB63S |
190S-ANEJ2-CC10C |
190S-ANEJ2-CC10C-KN |
190S-ANEJ2-DB25C |
190S-ANEJ2-DB40C |
190S-ANEJ2-DB63C |
190S-ANEJ2-DC10C |
190S-ANF1-CB16C |
190S-ANF1-CB25C |
190S-ANF1-CB40C |
190S-ANF1-CC10C |
190S-ANF2-CB25C |
190S-ANF2-CB40C |
190S-ANF2-CB63C |
190S-ANF2-CC10C-R |
190S-ANF2-DC10C |
190S-ANJ1-CB25C-S11 |
190S-ANJ2-CB25C |
190S-ANK2-CB16C |
190S-ANK2-CB25C |
190S-ANK2-CB40C |
190S-ANK2-CB63C |
190S-ANK2-CC10C |
190S-ANKD2-CB63C |
190S-ANKF2-CB10C |
190S-ANKF2-CB16C |
190S-ANKF2-CB25C |
190S-ANKF2-CB25C-KN |
190S-ANKF2-CB40C |
190S-ANKF2-CB40C-KN |
VRDM564/50LNA |
VRDM566/50LAN |
VRDM566/50LNC |
VRDM564/50LTA |
VRDM568/50LNA |
VRDM568/50LHB |
VRDM568/50LVC |
VRDM397/50LWB |
VRDM397/50 |
VRDM3910/50LNA |
VRDM3910/50LNB |
VRDM3910/50LWB |
VRDM3913/50LWB |
VRDM3913/50LNC |
VRDM3913/50LWC |
VRDM5913/50LNC |
WS5-5.281-00 |
WS5-9.08100 |
WD3-004.0801 |
WD3-007 |
WD3-008.0801 |
WDM3-004.0801 |
WDM3-004.1801 |
WDP5-118.05100 |
TLC511F |
D450.01 |
D225.01 |
WD3-004 |
WP-311 |
WP-318 |
WDM3-008 |
WDPM3-314.03200 |
WDPM3-314.93202 |
WDP3-028 |
WDP3-014.0803 |
WDP3-014 |
WDP3-018.0801 |
WDP3-118 |
WDP3-228 |
WDP3-314.0811 |
WDP3-318 |
WDP3-337 |
WDP3-338 |
WDP5-118.05100 |
WDP5-228.051-00 |
WDP5-318.05108 |
SER397/4L7SS0CO |
MI-2498,10 |
SER31122/4L5SS0CO |
VRDM597/50LSA |
WD5-008.061-00 |
WDP3-314.98007 |
31122/50 |
WDP-0180801 |
VRDM-3913/50-LWB |
TLC432F |
TLD136F |