Presentation 1995/9/22
The Failure analysis and the maintenance of reliability for solid-state amplifiers
Zin Otsuki, Hiroki Nakamura, Kenji Ueoka, Hisao Kakinuma,
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Abstract(in English) NHK(Japan Broadcasting Corp.) renewed TV transmitters of Tokyo Shiba transmitting station in 1984. Since solder defectiveness of power FET's were discovered in a few years, we have repaired the solder of all power FET's. However, damages by heat were also found in the solder of power amplifiers, we have investigated the condition and the cause of these deterioration on all Tr PAs. This papers discribes the result of investigation on the TrPA's deterioration and the improvement of the heat-sink for the Tr PAs
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Paper # R95-8
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Committee R
Conference Date 1995/9/22(1days)
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Registration To Reliability(R)
Language JPN
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Title (in English) The Failure analysis and the maintenance of reliability for solid-state amplifiers
Sub Title (in English)
Keyword(1)
1st Author's Name Zin Otsuki
1st Author's Affiliation Engineering Adaministration Department Central Television Transimtting Station NHK Japan Broadcasting Corporation()
2nd Author's Name Hiroki Nakamura
2nd Author's Affiliation Engineering Adaministration Department Central Television Transimtting Station NHK Japan Broadcasting Corporation
3rd Author's Name Kenji Ueoka
3rd Author's Affiliation Engineering Adaministration Department Central Television Transimtting Station NHK Japan Broadcasting Corporation
4th Author's Name Hisao Kakinuma
4th Author's Affiliation Engineering Adaministration Department Central Television Transimtting Station NHK Japan Broadcasting Corporation
Date 1995/9/22
Paper # R95-8
Volume (vol) vol.95
Number (no) 257
Page pp.pp.-
#Pages 5
Date of Issue