1746-OB32E卡件
.組合代換
組合代換就是把同一型號(hào)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(duì)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(shí)予以注意:
⑴集成電路引腳的編號(hào)順序,切勿接錯(cuò);
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(cè)量IC的靜態(tài)工作電流,如電流遠(yuǎn)大于正常值,則說(shuō)明電路可能產(chǎn)生自激,這時(shí)須進(jìn)行去耦、調(diào)整。若增益與原來(lái)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(dòng)能力。
⑹在改動(dòng)時(shí)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。
1746-OB32E卡件
1738-OB8EM12 |
1738-OB8EM23 |
1738-OB8EM8 |
1738-OE2CM12 |
1738-OE2VM12 |
1738-OE4CM12 |
1738-OV4EM12 |
1738-OW4M12 |
1738-OW4M12AC |
1738-SSIM23 |
1738-VHSC24M23 |
1746-A10 |
1746-A13 |
1746-A4 |
1746-A7 |
1746-C16 |
1746-C9 |
1746-F1 |
1746-F3 |
1746-F4 |
1746-F5 |
1746-F8 |
1746-F9 |
1746-HCA |
1746-HSCE |
1746-HSCE2 |
1746-HT |
1746-IA16 |
1746-IB16 |
1746-IB32 |
1746-IM16 |
1746-ITB16 |
1746-IV16 |
1746-IV32 |
1746-N2 |
1746-NI16I |
1746-NI8 |
1746-NO8I |
1746-NO8V |
1746-NR8 |
1746-NT8 |
1746-OA16 |
1746-OA8 |
1746-OB16 |
1746-OB16E |
1746-OB32 |
1746-OB32E |
1746-OBP8 |
1746-OV16 |
1746-OV32 |
1746-OW16 |
1746-OW8 |
1746-OX8 |
1746-P2 |
1746-P3 |
1746-P4 |
1746-R14 |
1746-RT25B |
1746-RT25C |
1746-RT25G |
1746-RT25R |
1747-AENTR |
1747-BA |
1747-BAJMPR |
1747-C10 |
1747-C13 |
1747-C20 |
1747-CP3 |
1747-DU501 |
1747-FC |
1747-KY1 |
1747-L532 |
1747-L533 |
1747-L541 |
1747-L542 |
1747-L543 |
1747-L551 |
1747-L552 |
1747-L553 |
1747-M13 |
1747-M15 |
1747-OS302 |
DDC01.1-K100A-D |
DDC01.1-K150A-D |
DDC01.2.N050C-RL01-01-FW |
DDC01.2-N100A-D |
DDC01.2-N100A-DS68-00-FW |
DDC01.2-N100A-DS01-02-FW |
DDC01.2-N200A-D |
DDC01.2-N200A-DA02-01-FW |
DDC01.2-N200A-DS01-02 |
DDC01.2-N200A-DS01-02-FW |
DDC01.2-N200A-DS50-00-FW |
DDC01.2-N200A-DS50-01-FW |
DDC01.2-N200A-DS68-00-FW |
DDC1.1-K100A-DS50-01 |
DDS2.1-W100-D |
DDS2.1-W150-D |
DDS3.1-W050-DA01-00 |
DDS02 1-W050-D |
DDS02.1-A050-D |
DDS02.1-A100-D |
DDS02.1-A100-DS01-02-FW |
DDS02.1-A100-DS03-02-FW |
DDS02.1-A150-D |
DDS02.1-A200-DS46-00-FW |
DDS02.1-W015-RA01-00 |
DDS02.1-W015-RA01-02-FW |
DDS02.1-W025-DA01-00 |
DDS02.1-W050-DA01-00 |
DDS02.1-W050-DA01-00-FW |
DDS02.1-W050-DA01-01-FW |
DDS02.1-W050-DA02-01-FW |
DDS02.1-W100-D |
DDS02.1-W100-DS01-02-FW |
DDS02.1-W150-D |
DDS02.1-W200-D |
DDS02.2-W015-BE12-01 |
DDS02.2-W050-BE12-00 |
DDS02.2-W100B |
DDS02.2-W100-B |
DDS02.2-W100-BE12-01-FW |
DDS02.2-W100-BE24-01-FW |
DDS02.2-W100-BE24-02-FW |
DDS02.2-W200-B |
DDS022-A100-B |
DDS3.1-W030-DS01-00 |
DDS03.1-W030-DS01-02-FW |
DDS03.1-W030-D |
DDS03.2-W030-B |
DDS03.2-W050-B |
DDS2.1-W150-D |
DDS2.1-W200-D |
DDS2.1-W015-R |
DDS2.1W-100 |
DDS2.1-W100D-01 |
DDS2.1-W150-DA01-01 |
DDS3.1-W030-D |
DDS3.1-W030-DS01-01-FW |
DDS3.1-W030-R |
DKC01.1-040-7-FW |
DKC01.3-040-7-FW |
DKC01.3-100-7-FW |
DKC02.3-040-7-FW |
DKC03.3-040-7-FW |
DKC04.3-040-7-FW |
DKC04.3-100-7-FW |
DKC06.3-040-7-FW |
DKC1.1-040-7-FW |
DKC11.1-040-7-FW |
DKC11.3-100-7-FW |
DKR03.1-W100N-BE32-01-FW |
DKR03.1-W200B-BE37-01-FW |
DKS01.10-W030B-DL01-0 |
DKS01.1-W030B-DL01-00-FW |
DKS01.1-W050A-DL01-01-FW |
DKS01.1-W100A-D |
DKS01.1-W100A-DL02-01.FW |
DKS1.1-W030B-D |
DKS1.1-W030B-DA01-00 |
DKS1.1-W100A-D |
HDS02.1-W040N-HD12-01-FW |
HDS02.1-W040N-HS12-01-FW |
HDS02.2-W040N-HS12-01-FW |
HDS02.2-W040N-HS24-01-FW |
HDS02.2-W040N-HS32-01-FW |
HDS02.2-WO40N-HS12-01-FW |
HDS03.1-W075N-HS12-01-FW |
HDS03.1-W100N-HS32-01-FW |
HDS03.1-W100N-HS79-01-FW |
HDS03.2-W075N |
HDS03.2-W075N-H |
HDS03.2-W075N-HS32-01-FW |
HDS03.2-W075N-H3 |
HDS03.2-W075N-HS12-01-FW |
HDS03.2-W075N-HS32-01-FW |
HDS03.2-W075N-HS45-0 |
HDS03.2-W075N-HS45-01-FW |
HDS03.2-W075N-HS56-0 |
HDS03.2-W100N |