Posts by thomash
18 total posts17 results
beogram 8000 TT only
in BeoGram · Jul 24, 2023 23:34Thank you Glitch for this advice. Meantime I sliced the front off this cartridge where the cantilever had broken off. Surprise surprise it is the same structure as the old SP6 with a little X stuck on rubber block and th…
beogram 8000 TT only
in BeoGram · Jul 24, 2023 19:56Mark I have multiple reasons for attacking this machine. It came to me only because owner had found it in junkpile from two generations ago deceased relatives and was ready to toss it in garbage. I stopped him and began …
beogram 8000 TT only
in BeoGram · Jul 24, 2023 17:04I get that people's intentions might be good and I hope mine are too. Words on a screen can be misinterpreted and I am sorry for mischaracterizing anyone. Yesterday I did manage to get correct speed to go along with prev…
beogram 8000 TT only
in BeoGram · Jul 22, 2023 18:26It does not help matters when this machine has numerous modifications and changes not reflected on the meager service material more withheld than made available by B O. I am not a rich person and my skill level cannot be…
beogram 8000 TT only
in BeoGram · Jul 22, 2023 17:02For many reasons I wish I were in Danmark to have someone who knows their way around it fix it but that is logistically impossible. I feel lucky to have visited there 40 years ago. Those memories will have to last the re…
beogram 8000 TT only
in BeoGram · Jul 21, 2023 18:41The latest: I paid $50USD for a new strobe wheel. I can see pulses on pin 12 of IC1 from the pickup I had to also replace. But there is no regulation; the platter is still going way too fast. The next chip in line is ins…
beogram 8000 TT only
in BeoGram · Jul 4, 2023 19:56Since I am not receiving any response or help with this I am going to throw the entire thing in garbage pickup. My friend wants the platter and nameplate to mount as artwork but the rest of it is fast becoming utterly wo…
beogram 8000 TT only
in BeoGram · Jun 29, 2023 23:07Down in corner near D5 maybe are two afterthought mini boards hanging on for dear life via screw through a transistor. I cannot correlate them to the only schematic I have for a 8000 from vinylengine. If anyone can direc…
beogram 8000 TT only
in BeoGram · Jun 26, 2023 21:44Can someone provide theory of operation circuit description for tangential drive? I see a xfmr coil connected to first stage of IC3 then another coil bridging final stage of IC3 over to the main drive coils plus there is…
Beogram 8002 dead after adjustment
in BeoGram · Jun 21, 2023 21:47Hello: Hope OK to ask for help with a 8000 someone gave me out of a shed. I spent days getting new electrolytics in and reflowing solder joints on connector junctions and replacing the < > light bulb and rebuilding the l…
beogram 8000 TT only
in BeoGram · Jun 19, 2023 19:00Hello: Adding to this as things happen; none of them good. I have lost +15V after I nearly had the thing working all correctly. The regulator has +20 going in, +20 on the base to Q18 but zero on the collector output. I a…
beogram 8000 TT only
in BeoGram · Jun 6, 2023 22:34At the risk of talking to myself, I submit for those interested that I got some response by crowbarring DC supplies into the beogram8000. I used two 9V in series and backwards for the NEG 15 plus a wall wart for the 5V a…
beogram 8000 TT only
in BeoGram · Jun 5, 2023 18:08In fact last night I DID remove the relay and determined what is what and am confident I now have the wires right. My plan is to just run the cartridge wires straight out the bottom and bypass the relay. Wonder if anyone…
beogram 8000 TT only
in BeoGram · Jun 4, 2023 22:33Thank you Glitch for image and info. There seem to have been changes though as my audio shields were in the center with hot L and R on either side. Right now having trouble figuring out the relay coil pins for the brown …
beogram 8000 TT only
in BeoGram · Jun 4, 2023 21:19I got the entire machine dismantled to expose the main board for service. In the course of tear down, the wires on the DIN connector have nearly all come off. I have studied the diagram of the plug and its little board b…
beogram 8000 TT only
in BeoGram · Jun 4, 2023 16:37Hello Premiumverum and thank you. Glad to know no jumper needed on DIN connector. The second fuse on secondary side was not blown, only the one on primary side. My idea is to put external regulated supply to the main bus…
beogram 8000 TT only
in BeoGram · Jun 1, 2023 07:42Hello: Got this out of abandoned shed, DIN cable missing and no beocenter either. Primary power xfmr fuse blown, even with replacement unit does not respond. Tried the pull P4 and reseat as per service manual but still o…