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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Switching Power Supply Failure
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Switching Power Supply Failure
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Switching Power Supply Failure
"W. Curtiss Priest" bravely wrote to "All" (06 Oct 03 14:43:59)
--- on the heady topic of " Switching Power Supply Failure" WCP From: "W. Curtiss Priest" WCP Technical Note WCP W. Curtiss Priest WCP WCP October 6, 2003 WCP Subject: Switching Power Supply Failure [,,,] WCP Repair a switching power supply WCP Preface: WCP While this repair story is about a fifteen year old WCP VCR, the proceedure is one to follow for everything WCP from PC power supplies to Audio CD to DVD players. What a nice happy ending! While this is not supposed to be a Pekinpah movie script, it didn't have our hero riding off into the sunset. :-( Only on the usenet! :-) Thanks! Asimov ****** .... Over a hundred billion electrons were used in crafting this tagline. |
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Switching Power Supply Failure
"W. Curtiss Priest" bravely wrote to "All" (06 Oct 03 14:43:59)
--- on the heady topic of " Switching Power Supply Failure" WCP From: "W. Curtiss Priest" WCP Technical Note WCP W. Curtiss Priest WCP WCP October 6, 2003 WCP Subject: Switching Power Supply Failure [,,,] WCP Repair a switching power supply WCP Preface: WCP While this repair story is about a fifteen year old WCP VCR, the proceedure is one to follow for everything WCP from PC power supplies to Audio CD to DVD players. What a nice happy ending! While this is not supposed to be a Pekinpah movie script, it didn't have our hero riding off into the sunset. :-( Only on the usenet! :-) Thanks! Asimov ****** .... Over a hundred billion electrons were used in crafting this tagline. |
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Switching Power Supply Failure
Asimov wrote:
"W. Curtiss Priest" bravely wrote to "All" (06 Oct 03 14:43:59) --- on the heady topic of " Switching Power Supply Failure" WCP From: "W. Curtiss Priest" WCP Technical Note WCP W. Curtiss Priest WCP WCP October 6, 2003 WCP Subject: Switching Power Supply Failure [,,,] WCP Repair a switching power supply WCP Preface: WCP While this repair story is about a fifteen year old WCP VCR, the proceedure is one to follow for everything WCP from PC power supplies to Audio CD to DVD players. What a nice happy ending! While this is not supposed to be a Pekinpah movie script, it didn't have our hero riding off into the sunset. :-( Only on the usenet! :-) Thanks! Asimov ****** ... Over a hundred billion electrons were used in crafting this tagline. Only trouble is, it doesn't always work out that way. We had one, similar setup, mimimal heatsinking, etc. and a blown fuse and shorted transistor. Replacing the fuse and transistor resulted in both blowing again. I then heard about an outfit ("Studio Somthingorother", ask me if you want me to look it up) that offered a "rebuild kit" for this and a lot of other models of VCRs. For less than $20 delivered, I got this kit that contained new caps, diodes, resistors, and a bunch of other parts. It was rather tedious to go through replacing all of that, but I'm glad I did as that VCR worked right off when I plugged it in and is still working fine, 5+ years later. |
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Switching Power Supply Failure
Asimov wrote:
"W. Curtiss Priest" bravely wrote to "All" (06 Oct 03 14:43:59) --- on the heady topic of " Switching Power Supply Failure" WCP From: "W. Curtiss Priest" WCP Technical Note WCP W. Curtiss Priest WCP WCP October 6, 2003 WCP Subject: Switching Power Supply Failure [,,,] WCP Repair a switching power supply WCP Preface: WCP While this repair story is about a fifteen year old WCP VCR, the proceedure is one to follow for everything WCP from PC power supplies to Audio CD to DVD players. What a nice happy ending! While this is not supposed to be a Pekinpah movie script, it didn't have our hero riding off into the sunset. :-( Only on the usenet! :-) Thanks! Asimov ****** ... Over a hundred billion electrons were used in crafting this tagline. Only trouble is, it doesn't always work out that way. We had one, similar setup, mimimal heatsinking, etc. and a blown fuse and shorted transistor. Replacing the fuse and transistor resulted in both blowing again. I then heard about an outfit ("Studio Somthingorother", ask me if you want me to look it up) that offered a "rebuild kit" for this and a lot of other models of VCRs. For less than $20 delivered, I got this kit that contained new caps, diodes, resistors, and a bunch of other parts. It was rather tedious to go through replacing all of that, but I'm glad I did as that VCR worked right off when I plugged it in and is still working fine, 5+ years later. |
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