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ARCHIVED FORUM -- April 2007 to March 2012 READ ONLY FORUM
This is the first Archived Forum which was active between 17th April 2007 and
1st March February 2012
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So, multimeter over the anode voltage supply... connect speakers... connect a makeshift antenna... mains plug in... ...power on. Valve heaters start as always, voltage seems normal. So I'll just wait a bit until the valves warm up and the receiver should be operational. Static comes on, but the tuning knob still doesn't do anything! Oh yes,
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Components were found to be good, so I decided to check the PCB for continuity or leakages. I was astonished to read 60 ohms between a couple of separate traces - and there was nothing connected except the variable capacitor. I disconnected it as well, and one of the halves of it still showed 60 ohms - steady even while rotating it! That was definitely
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All the component legs had been bent flat on the PCB before soldering and the old solder refused to climb up a desoldering wick, so I had brought the project to work where I have a proper rework station. Still, it took a good three hours before everything except the varicap were off and documented, and the result is seen here. Time to clean and check
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And here we have the culprit, out of the chassis. The PCB has no placement silk print and I don't have a component placement picture either, so it will need to be documented before and during the disassembly.
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That was frustrating so I simply took a long break, thinking it over. After looking over the IF stages which actually seemed to do their job since I heard at least something, I was almost convinced that the fault had to be in the tuner. It was difficult enough to resolder in place and as the components were impossible to check with everything soldered
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You learn something every day I thought there were just the gray and black versions with some little variations. I have this black 900M and scale is a lot 'busier'.
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[quote user="joeyboygolf"] As far as I am aware, that is how the Beo4 works. The same happens with PHONO. [/quote] Half true - When you list to PHONO and then press GO, Beo4 sends the actual 'phono' command. Then subsequent GO's will only send the generic 'go' command (PLAY on Beolink 1000). BUT if you press standby/off
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Everybody needs one of these, but I already have two (plus a 900M)... Anyway, I haven't seen one like this before. The face plate seems somehow much more streamlined than the (later?) black 900's I've seen, and the scale is also different from all I've seen before. Is this still something from regular production?
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Have I mentioned my birthday is in February? Seriously, that'll make an incredible prize. You still have time to find a black Beogram 7000 to include with it
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[quote user="rabble"] Any idea if I can just shove the antenna wires into the socket? [/quote] Yes you can - I believe the proper connector is unavailable new anyway, the only source is other people's junk boxes. Anyway if you have decent off-the-air reception over there, I'd recommend testing with just a loose wire instead of using
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