變頻器VE4001S3T2B2
維修技巧之
維修經(jīng)驗總結(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,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.復位電路
1.待修電路板上有大規(guī)模集成電路時,應注意復位問題.
2.在測試前裝回設(shè)備上,反復開,關(guān)機器試一試.以及多按幾次復
位鍵.
變頻器VE4001S3T2B2
| VE4001S3T2B2 |
| VE4001S4T1B1 |
| VE4001S4T1B2 |
| VE4001S4T2B1 |
| VE4001S4T2B2 |
| VE4002S1T1 |
| VE4002S1T1B1 |
| VE4002S1T1B2 |
| VE4002S1T1B3 |
| VE4002S1T2B1 |
| VE4002S1T2B2 |
| VE4002S1T2B3 |
| VE4002S1T2B4 |
| VE4002S1T2B5 |
| VE4002S1T2B6 |
| VE4002S2T1 |
| VE4002S2T1B1 |
| VE4002S2T1B2 |
| VE4002S2T2 |
| VE4002S2T2B1 |
| VE4002S2T2B2 |
| VE4003S1B2 |
| VE4003S2 |
| VE4003S2B1 |
| VE4003S2B2 |
| VE4003S2B3 |
| VE4003S2B4 |
| VE4003S2B5 |
| VE4003S2B6 |
| VE4003S4B1 |
| VE4003S5B1 |
| VE4003S6B1 |
| VE4003S7B1 |
| VE4005S1B2 |
| VE4005S2B1 |
| VE4005S2B2 |
| VE4005S2B3 |
| VE4006P2 |
| VE4007 |
| VE4009 |
| VE4010B1 |
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| VE4011B2 |
| VE4012S2B1 |
| VE4012S2B2 |
| VE4013S1B1 |
| VE4013S1B2 |
| VE4013S2B1 |
| VE4013S2B2 |
| VE4014 |
| VE4015 |
| VE4016 |
| VE4017PO |
| VE4021 |
| VE4031S2T2B1 |
| VE4032S1T2B1 |
| VE4033S2B1 |
| VE4035S2B1 |
| VE4036P2 |
| VE4037PO |
| VE4050E1C0 |
| VE4050E1C2 |
| VE4050E2C0 |
| VE4050E2C2 |
| VE4050S2K1C0 |
| VE4050S2K1C1 |
| VE4052M0 |
| VE4052M1 |
| VE4055S1C0 |
| VE4055S1C1 |
| VE4055S2C0 |
| VE4055S2C2 |
| VE4056 |
| VE4060C0 |
| VE4060C1 |
| VE4070 |
| VE4102 |
| VE4201 |
| VE4202 |
| VE4251 |
| VE5001 |
| VE5003 |
| VE5005 |
| VE5008 |
| VE5009 |
| VE5010 |
| VE5011 |
| VE5012 |
| VE5056 |
| VE6001P1 |
| VE6006 |
| VE6014P1 |
| VE6014P2 |
| VE6014P3 |
| VE6014P4 |
| VE6015P1 |
| VE6015P2 |
| R88M-G75030T-O-Z |
| R88M-G75030T-S2-Z |
| R88M-G75030T-Z |
| R88M-G7K515H-BOS2-Z |
| R88M-G7K515H-BO-Z |
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| R88M-G90010H-BOS2-Z |
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| R88M-G90010H-S2-Z |
| R88M-G90010H-Z |
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| R88M-GP10030T-BS2-Z |
| R88M-GP10030T-B-Z |
| R88M-GP10030T-OS2-Z |
| R88M-GP10030T-O-Z |
| R88M-GP10030T-S2-Z |
| R88M-GP10030T-Z |
| R88M-GP20030H-BOS2-Z |
| R88M-GP20030H-BO-Z |
| R88M-GP20030H-BS2-Z |
| R88M-GP20030H-B-Z |
| R88M-GP20030H-OS2-Z |
| R88M-GP20030H-O-Z |
| R88M-GP20030H-S2-Z |
| R88M-GP20030H-Z |
| R88M-GP20030T-BOS2-Z |
| R88M-GP20030T-BO-Z |
| R88M-GP20030T-BS2-Z |
| R88M-GP20030T-B-Z |
| R88M-GP20030T-OS2-Z |
| R88M-GP20030T-O-Z |
| R88M-GP20030T-S2-Z |
| R88M-GP20030T-Z |
| R88M-GP40030H-BOS2-Z |
| R88M-GP40030H-BO-Z |
