Beogram 5005 tonearm problems

18 replies
B(
Offline
beomaster224 (archived2)
Bronze
Posted March 17, 2012 at 02:36 GMT
#2217164

Hi everybody,

now that the Beomaster is fixed, I started work on my also newly arrived BG 5005. After opening it I found that the rails the tonearm uses for the horizontal movement came loose, so I fixed that. Now, the problem that I can't fix is that the tonearm is very loose, it just wobbles around actually and is a lot lower than the indicator arm (which is perfectly tight). I'm not able to bring it any higher, as the screw that should be tightened for that purpose always manages to get away from my screwdriver (sounds weird, I know...) Erm.. And I also have the feeling a simple tightening of said screw isn't gonna solve that problem.

Another problem is that once I push play, everything starts as it should (apart from the stylus that is sometimes so low I have to lift it on the record manually, and I guess I'll need a retipping soon like that...). The stylus then just stays in place and plays the same part of the LP over and over. I can't even move the tonearm using the buttons, and I also can't lift it with the buttons (which might very well be because the loose fit of the tonearm).

But when I start the record by pushing the 'turn' button, it acts just like when pushing play, but now I can at least move the tonearm pushing the directional buttons (bar the 'lift' option, of course). Still, the same section is played infinitely. The 'stop' command works as it should in both 'modes'.

Anyone having an educated guess?

DI
Offline
Dillen
BronzeModeratorFounder
Posted March 17, 2012 at 07:50 GMT
#2217165

You probably got the lifting arm at the back of the carriage on the wrong side of the
white nylon bar at the rear, that tilts forward and backward when lifting/lowering
when you put the rails back in.

Martin

L(
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Leslie (archived2)
Bronze
Posted March 17, 2012 at 08:54 GMT
#2217166

B(
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beomaster224 (archived2)
Bronze
Posted March 17, 2012 at 08:55 GMT
#2217167

Well, that's just the way I had it mounted, still, the tonearm sits very loose on its pivot point.

TO
Offline
tournedos
Bronze
Posted March 17, 2012 at 09:30 GMT
#2217168

The white bar that was mentioned has a return spring under the outer end, part # 1638 in the service manual. It's tiny and slips off very easily when the other mechanics aren't in place limiting the travel of the bar.

The arm not advancing is probably an unrelated problem, but check this first.

DI
Offline
Dillen
BronzeModeratorFounder
Posted March 17, 2012 at 09:35 GMT
#2217169

Could also be that the tiny point holding the massive inner part of the tonearm assy
has broken off. A replacement carriage is the only fix really, in the given case.

Martin

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beomaster224 (archived2)
Bronze
Posted March 17, 2012 at 09:35 GMT
#2217170

Spring checked, it's in place. I don't think the problem has to do with the lifting bar, or any of the springs. I really think it has to be something in the way the tonearm itself is mounted on the head of the carriage.

B(
Offline
beomaster224 (archived2)
Bronze
Posted March 17, 2012 at 09:38 GMT
#2217171

Dillen wrote:

Could also be that the tiny point holding the massive inner part of the tonearm assy
has broken off.

Do you mean the point marked 'T' in the service manual in chapter 6-3, fitting of the tone-arm?

That's how it looks mounted.

B(
Offline
beomaster224 (archived2)
Bronze
Posted March 17, 2012 at 11:39 GMT
#2217172

Okay, I'm again replying to myself... ❓

Could it be there's an integral part missing in the tonearm mount? In the service manual, it looks as if the tip protrudes from top to bottom, or at least that there is something mounted on the bottom too. If so, is there anything I can do about it? I apologize for the quality, the Samsung Galaxy is the only cam small enough to get down there, but the lack of a flash is quite obvious in low light...

B(
Offline
beomaster224 (archived2)
Bronze
Posted March 21, 2012 at 13:05 GMT
#2217173

Thanks for answering and especially for the pictures, it helps a lot to see how it actually should look like. I was able to get a tonearm and carriage (not for cheap I have to say, shipping especially... 😭 ) but I'm positive I'll be able to at least sort out the 'limping' of my tonearm. Then, I hope I can do something about the non-movement of the carriage during playback. If not, there's another post coming 😐

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