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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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One third of the picture is noisy when paused. Its always on the top
half. Slow motion shows a slight amount of noise. Normal Play is OK. The problem still shows up on store bought pre recorded tapes, but to a lesser degree. Also, the audio takes 15 seconds to clear up on SLP tapes. Thanks for any ideas on how to remedy this. |
#2
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![]() "Zac" wrote in message oups.com... One third of the picture is noisy when paused. Its always on the top half. Slow motion shows a slight amount of noise. Normal Play is OK. The problem still shows up on store bought pre recorded tapes, but to a lesser degree. Also, the audio takes 15 seconds to clear up on SLP tapes. Thanks for any ideas on how to remedy this. It's the video head. Sorry. Common symptom of a failing head. Reverse-search will also be bad. Mark Z. |
#3
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Mark D. Zacharias wrote:
"Zac" wrote in message oups.com... One third of the picture is noisy when paused. Its always on the top half. Slow motion shows a slight amount of noise. Normal Play is OK. The problem still shows up on store bought pre recorded tapes, but to a lesser degree. Also, the audio takes 15 seconds to clear up on SLP tapes. Thanks for any ideas on how to remedy this. It's the video head. Sorry. Common symptom of a failing head. Reverse-search will also be bad. Mark Z. It might just be a clogged (dirty) head. Try a full manual cleaning first. Note that if you do it wrong you can destroy the heads. If you do it right you could solve the problem. Good Luck. |
#4
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![]() "Jumpster Jiver" wrote in message news:O8Kcf.8558$SV1.4693@trndny01... Mark D. Zacharias wrote: snip It might just be a clogged (dirty) head. Try a full manual cleaning first. Note that if you do it wrong you can destroy the heads. If you do it right you could solve the problem. Good Luck. Not with just the 1/3 snow. Clogged head would give either picture overlaid with snow or total snow. A few models give a different, kind of bright white with other artifact over the whole screen due to head preamp design (like some old Hitachi models), but I still think it's a failing head. Mark Z. |
#5
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Posted to sci.electronics.repair
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Mark D. Zacharias wrote:
It's the video head. Sorry. Common symptom of a failing head. Reverse-search will also be bad. Mark Z. OK, I double checked Reverse-search and it looks good. After some cleaning, it looks like Pause mode gives snow on the top half of the picture. Slow motion mode gives snow between one third to one half of the picture. So it seems that there is more snow after some cleaning. Oh, the machine still takes 15 seconds for the audio to clear up on a SLP tape. It takes 5 seconds to clear on a SP tape. This happens anytime the machine is rewound. Thanks in advance for more suggestions. Zac |
#6
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Posted to sci.electronics.repair
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![]() "Zac" wrote in message oups.com... Mark D. Zacharias wrote: It's the video head. Sorry. Common symptom of a failing head. Reverse-search will also be bad. Mark Z. OK, I double checked Reverse-search and it looks good. After some cleaning, it looks like Pause mode gives snow on the top half of the picture. Slow motion mode gives snow between one third to one half of the picture. So it seems that there is more snow after some cleaning. Oh, the machine still takes 15 seconds for the audio to clear up on a SLP tape. It takes 5 seconds to clear on a SP tape. This happens anytime the machine is rewound. Thanks in advance for more suggestions. Zac I still think video head. mz |
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