Here's some pics, first is the front panel, 2nd main oscillator board and third top view of inside. Could the having the filter board removed, be stopping oscillation? I'm sketchy on oscillators too, but know some IC based oscillators use filter FB.
These are the levelling filter and analyser board. To get access to the osc board, I had to take out the nearest two to it.
This is as far as I've got, and apart from knowing a little bit about logic, I'm not sure what to look for next. yesterday before finishing for the day, I checked the reed relay's ( big silver EAC 1A5AHH) to see if they had power. But I can't find a single signal anywhere on the board with a scope. The main osc board has 5 IC's on it, a quad nand gate, hex inverter, two op amps and a transistor array. The freqency meter now shows a reading and the "dot" moves with each change in frequency range. Now the sine output has disappeared, but the "FFF " I was getting on the top right display has gone, and show the voltage present at the input BNC, but off spec. For the ALOS Z40, Minolta 600Z and Bell+Howell ABR 2000 Reader-Printers RC53.
I've replaced the burnt out 15u 20v tantalum cap with a 22u 50v electrolytic as a temporary fix, as well as a 150p silver mica cap. Konica Minoltas MS6000 MK II microfilm scanner provides fast, Manual Frame. have contacted the calibration lab who calibrated it back in 1997 in the vague hope they have something. It will be difficult to fix without as I'm a relative electronics novice. So if any one has any info on this bit of gear, or even better a manual or schematic's, it would be much appreciated.
Sage Peachtree Complete Accounting 2011 Serial Number here. As I'm new to this video blogging, it takes me a while. Download Bell Howell Abr 2000 Manual.pdf - View and Download Bell and Howell 2000 FB user manual online. I've done a video which I'll put on Utube in the near future, am in the process of editing it. This is on the main oscillator card, so all I'm getting is a distorted sine output which can't be altered. This thing uses a lot of logic IC's and is stuffed with tantalum's, one of which has burnt out and has a blob of Ali oozing out. All I can find out is that B&H were a US company who made film projector's, and at some point in the 70's had a test gear division in the UK. AFAIK it might have been made to test tape recorders. so it's potentially an amazing bit of test gear. Oh, it has an precision DC source too from +/- 0 - 19.999v. A THD meter and volt/ammeter/resistance DMM all in one box. What it is as far as I can tell, is a sig gen with a range from near DC to 10mhz either sine or square. Removal Removal is by Appointment Only and all items must be removed within ten (10) business days from the time and date of issuance of the Buyer’s Certificate.I've just got a Bell and Howell TSC 2000 system calibrator. Contact City of Newburgh, NY immediately for further information. TAX EXEMPTION TAX EXEMPTION: Tax exempt documents must be provided to this seller within 24 hours of the auctions close.
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