140GNUVKY 冗余模塊
.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，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。
| 140GNSINT |
| 140GNSNA |
| 140GNSNB |
| 140GNSND |
| 140GNSNJ |
| 140GNSNKY |
| 140GNTC3H |
| 140GNTC3L |
| 140GNTC4H |
| 140GNTC4L |
| 140GNTLA33 |
| 140GNTLA34 |
| 140GNTLA43 |
| 140GNTLA44 |
| 140GNTLC43 |
| 140GNTLC44 |
| 140GNTLH3 |
| 140GNTLH4 |
| 140GNTLV3 |
| 140GNTLV4 |
| 140GNUVA |
| 140GNUVB |
| 140GNUVC |
| 140GNUVD |
| 140GNUVJ |
| 140GNUVKY |
| 140GN0H3E12 |
| 140GN0H3E12AB |
| 140GN0H3E12SD |
| 140GN0H3E12Z1 |
| 140GN0H4E12 |
| 140GN0H4E12Z1 |
| 140GN0I3E12 |
| 140GN0I3E12Z1 |
| 140GN0I4E12 |
| 140GN0I4E12Z1 |
| 140GN0K3E12 |
| 140GN0K3E12Z1 |
| 140GN0K3E12Z1FB |
| 140GN0K4E12 |
| 140GN0K4E12Z1 |
| 140GN1 |
| 140GN2 |
| 140GN5H3E12 |
| 140GN5H3E12FB |
| 140GN5H3E12SBFB |
| 140GN5H3E12SD |
| 140GN5H3E12SJAJ |
| 140GN5H3E12UAAJ |
| 140GN5H3E12UDAJ |
| 140GN5H3E12Z1 |
| 140GN5H3E12Z1AJ |
| 140GN5H3E12Z1SJAJ |
| 140GN5H3E12Z1SJFB |
| 140GN5H4E12 |
| 140GN5H4E12Z1 |
| 140GN5I3E12 |
| 140GN5I3E12Z1 |
| 140GN5I4E12 |
| 140GN5I4E12Z1 |
| 140GN5K3E12 |
| 140GN5K3E12Z1 |
| 140GN5K4E12 |
| 140GN5K4E12Z1 |
| 140GN6H3E12 |
| 140GN6H3E12FB |
| 140GN6H3E12Z1 |
| 140GN6H4E12 |
| 140GN6H4E12Z1 |
| 140GN6I3E12 |
| 140GN6I3E12SAAJ |
| 140GN6I3E12Z1 |
| 140GN6I4E12 |
| 1X00474G02 |
| 1X00480G01 |
| 3A99132G01 |
| 3A99141G01 |
| 3A99158G02 |
| 3A99199G01 |
| 3A99200G02 |
| 3A99245G01 |
| 3A99266G01 |
| 3A99419G03 |
| 3A99419G06 |
| 3A99989G09 |
| 3A99989H06 |
| 3A99989H07 |
| 3A99989H13 |
| 4D33888G01 |
| 4D33900G19 |
| 4D33934G01 |
| 4D33935H01 |
| 4D33942G02 |
| 4D33945G01 |
| 5A22410H01 |
| 5A22410H02 |
| 5A22411H01 |
| 5A22412H01 |
| 5A22727G02 |
| 5A22727G03 |
| 5A22971G01 |
| 5A22982G01 |
| 5A22982G02 |
| 5A22982G03 |
140GNUVKY 冗余模塊
