Forum Replies Created
-
AuthorPosts
-
Will see if I can get some later.
Wonder if that’s the same on the 14 ? Must admit, I didn’t seem to have any mounting issues.
How far apart are the 14 and S8 in terms of design, componentry etc ?
Are you sorted Jacob ? Hopefully you’ve got it all working again.
Good luck – interestingly, I found a green micro switch tucked away on the ICE board. Tried pressing it with power off and with power on, but no change. Could be that it needs to be held in for a few seconds ?
Just surmising of course, but there must be a reason for it.
Thanks – that’s interesting. Although I’m getting nothing.
Could be a dicky Powerlink cable, I’ll do a continuity test on it tomorrow.
Appreciate the help.
Jonny
Thanks for the quick reply. The only light I can see is a white knob type thing underneath. Bear in mind I’ve never had this working, so don’t know the functionality etc.
Nothing lights up at the moment.
Cheers
Jonny
Hi Jacob – hope all is well. Did you get your diode swapped over ?
My Beolab 14 is back with me and all connected up, but no switching on from the Powerlink connector. I’m using a Powerlink to RJ45 connector, but no response from the sub.
I’m wondering if I’ve missed something fundamental, although all connections are connected, even that pesky ribbon cable.
One thing I’m wondering is whether I have a missing connection right in the middle of the ICE power module. There’s a block connector socket on the left hand side of(opposite to all the caps), approx half way up. Is yours inhabited ?
Another thing that’s occurred to me is whether there’s a reset switch that needs a prod ?
Cheers
Jonny
All back together – just awaiting my Powerlink to RJ45 cable so I can test it.
Brilliant – so it’s external to the pcbs. Makes sense now.
Will have a look tomorrow.
Great team work !
Cheers
Jonny
It’s been a while since I took the think apart and I’m progressing well on re-assembly, although I’ve hit a headscratcher I hope you can help with Jacob.
I have a ribbon cable, which doesn’t stretch very far and appears to be folded back on itself. I’m wondering if it goes to either of the 2 connectors shown in the pic. There’s no connector on the end, so thinking the top connector might be the one, but it really struggles to get anywhere near it, let alone slot in. It could be that the connector has come off the ribbon whilst it’s been away, but don’t think it likely.
Could be that the 2 connectors are redundant, as is the ribbon ?
All the connections on the board with the blown IC are mated up with their respective cables.
Cheers
Jonny
Attachments:
You must be logged in to view attached files.Try these for size
Attachments:
You must be logged in to view attached files.Apologies for the late reply. Sub apparently repaired (IC changed) fully checked over electronically and given a clean bill of health. I’ll hopefully be collecting it tomorrow, so will take some close ups for you.
Also managed to find a relatively local Beolab 2 at a sensible price to go with my 8000’s, so happy days all round.
If anyone wants a Beolab 14 let me know !
Cheers
Jonny
Couldn’t find a ribbon cable new or used so ended up making my own solution. Learned a lot about ribbon cables and connectors along the way.
My ribbon cable had a pitch of 2.54mm (1/10th inch) which was used back in 89 and is still in use.
This allowed me to find some Molex connectors which could be soldered to the board and I now have a bespoke cable set up with detachable connectors, which will make future fiddling a lot easier.Hopefully I won’t need to do too much fiddling in future, as I’m pleased to say everything now works again as it should.
Tracking back on, both channels working and datalink operative.
Happy days !
A very Happy New Year to everyone on the forum !
I’m taking the opportunity of a quiet couple of hrs to try and sort my 4500. Since getting everything back together I’m having a few issues. The arm won’t track, datalink doesn’t work and I’m only getting sound on one channel.
I think I may have found a culprit in the pesky ribbon cable I was talking about earlier in this thread. Two of the prongs (both outer ones) have become detached.
I’m not sure what they control, but it looks like I need a new ribbon cable.
Are these available anywhere ? I could get away with creating single wires in place of the broken prongs but would prefer the correct bit.
Thanks in advance.
Jonny
Attachments:
You must be logged in to view attached files.Thanks Martin – will clean up the guide rods and investigate the sensor situation. The start of the record is found correctly, does that operate the same way ?
Many thanks – so the black wires are just for grounding ? If I’ve got them the wrong way round I may not actually have the Powerlink cable grounded ?
Thanks Martin – really appreciated.
Tracking force set to 1.15g (SMC2) and sound fine. Holding down the > arrow to lower the tonearm worked, as my deck is a Beogram 4500.
Only issue now is the stylus sits in the runout groove irrespective of what record is being played. Just like a conventional TT. It should return to the standby position ?
Edit – having tried to play a full record I’m now getting another issue. Previously I’d just used the < > buttons to position the stylus and play a short bit of the record to check there was decent sound. Now, when I try and play a record from the start, the carriage doesn’t move the tonearm assembly along. It works fine with the < > buttons.
I’ve used a dry lubricant Molykote D321 R on the carriage rods. Could this be binding up the whole mechanism?
Cheers
Jonny
Everything back together again and working as it should. Importantly, I didn’t damage the MMC2 – which is a relief !
Will do ! My surrounding area looked a lot less damaged than yours, so it’s good news that your components are testing ok.
-
AuthorPosts