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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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Sony VO-9850 U-Matic SP tape creasing
moosh101:
You are correct about being "a little uncomfortable with adjusting the machine internals".... DO NOT adjust anything. Usually the tape creasing symptom you reported is most likely a worn pinch roller and a little less likely worn capstan bearings, and quite unlikely adjustments, incorrect back-tension, worn drum, bent levers and guides, etc... unless, of course, someone has monkeyed with the adjustments or bent levers and guides you should not suspect adjustments at all. electricitym - - - - - snipped: "moosh101" wrote in message tape was being creased by the pinch roller. I am not a technician and fell a little uncomfortable with adjusting the machine internals, though if anyone could give me some guidance, I would attempt a diy fix. Many thanks, moosh101. -- moosh101 |
#2
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Sony VO-9850 U-Matic SP tape creasing
Greetings. I have a Sony VO-9850P U-Matic SP vtr that is creasing SP tapes. I took off the top cover and observed during recording that the tape was being creased by the pinch roller. I am not a technician and fell a little uncomfortable with adjusting the machine internals, though if anyone could give me some guidance, I would attempt a diy fix. Many thanks, moosh101.
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#3
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Sony VO-9850 U-Matic SP tape creasing
moosh101 wrote: Greetings. I have a Sony VO-9850P U-Matic SP vtr that is creasing SP tapes. I took off the top cover and observed during recording that the tape was being creased by the pinch roller. I am not a technician and fell a little uncomfortable with adjusting the machine internals, though if anyone could give me some guidance, I would attempt a diy fix. Many thanks, moosh101. Hi... Brings back memories... still have a vp-2000 sitting in the basement (no idea why I'd suggest that you not "adjust" anything. Instead, I'd get a whole box of q-tips and a bottle of isopropyl alcohol. I'd take the cover off, then moisten (moisten, not wet) one of the q-tips and start *gently* cleaning the entire tape path. That includes the guides, the heads, the capstan, the idler, etc. Every time you see a bit of discoloration on a q-tip, switch it for a new dampened one and keep going. Hope this helps. Ken |
#4
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Sony VO-9850 U-Matic SP tape creasing
Ken Weitzel wrote:
moosh101 wrote: Greetings. I have a Sony VO-9850P U-Matic SP vtr that is creasing SP tapes. I took off the top cover and observed during recording that the tape was being creased by the pinch roller. I am not a technician and fell a little uncomfortable with adjusting the machine internals, though if anyone could give me some guidance, I would attempt a diy fix. Many thanks, moosh101. Hi... Brings back memories... still have a vp-2000 sitting in the basement (no idea why I'd suggest that you not "adjust" anything. Instead, I'd get a whole box of q-tips and a bottle of isopropyl alcohol. I'd take the cover off, then moisten (moisten, not wet) one of the q-tips and start *gently* cleaning the entire tape path. That includes the guides, the heads, the capstan, the idler, etc. Every time you see a bit of discoloration on a q-tip, switch it for a new dampened one and keep going. Hope this helps. Ken That's good advice but don't clean the heads with q-tips. Even an experienced person can break a head that way. For the heads use a chamois swab, moistened with alcohol, and be sure the sharp edge of the swab doesn't grab and break the heads. use gentle pressure while rotating the drum by hand. |
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