Vintage HiFi Audio Forum
Repair / Help Forum => Repair / Help => Topic started by: OldiesButGoodies on May 16, 2015, 12:38:03 PM
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apparently I closed Friday night by digging into the Otari's preamp calibration settings while under the influence of IPA. Seems to have worked cuz I just recorded Patty Barber's Companion LP and it sounds pretty good (there is some incredible bass in that LP - like shake the house bass drum action). :P
(https://c2.staticflickr.com/6/5347/17115008613_9767fd38bd_z.jpg) (https://flic.kr/p/s5oTMp)IMG_2628 (https://flic.kr/p/s5oTMp) by Jose Sifontes (https://www.flickr.com/photos/jsifontes/), on Flickr
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Pepe, a beer lover with a tape problem!
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Pepe-that board flips down, if it helps.
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The top board? Did not know that. But the one that I mess with a lot is the bottom one though.
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The bottom one, if it's the bigger one.
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The audio amp board is the one at the bottom (low freq comp, equalization, record/repro levels etc.). The service manual does not mention that convenience. Will explore it next time I crack it open. I am now working on a Revox B77 and the Otari is closed up.
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My ReVox B77 plays for 15-20 minutes then the left channel dies. Ideas? No smart ass comments please. If I wasn't that I'll just ask BJ.
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Try re-seating all the cards, specially the reproduce amp card, second from the right (and/or take it out and clean the contacts with isopropyl alcohol). Borrow a spare reproduce card from a known good unit and see if that fixes it. :-\