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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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#1
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Most likely suspect?
I have an old Sony SLO-325 Industrial Beta VCR that I have been
restoring. It works well, but only after it has been powered up for 30-45 minutes. Started cold, the audio is OK but the video is complete noise. After 30-45 minutes, the video returns in perfect color without noise. I suspect a bad capacitor somewhere in the power supply, but could something else explain the need for such a "warm-up" time? |
#2
Posted to sci.electronics.repair
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Most likely suspect?
In these older machines, you can have any type of component becoming thermo
sensitive. The rate of the effect all depends on the rate and characteristics of the temperature change. The best approach is with a heat gun and a few cans of freeze spray. -- JANA _____ "VCR Gymnast" wrote in message oups.com... I have an old Sony SLO-325 Industrial Beta VCR that I have been restoring. It works well, but only after it has been powered up for 30-45 minutes. Started cold, the audio is OK but the video is complete noise. After 30-45 minutes, the video returns in perfect color without noise. I suspect a bad capacitor somewhere in the power supply, but could something else explain the need for such a "warm-up" time? |
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