Audio Note CD3.1x FAIL ... false alarm

Dedicated to the silver disk spinner
User avatar
Mike H
Amstrad Tower of Power
Posts: 18451
Joined: Sat Oct 04, 2008 5:38 pm
Location: The Fens
Contact:

Post by Mike H » Wed Jan 29, 2014 3:29 pm

Image
Last edited by Mike H on Sat Aug 29, 2015 5:01 pm, edited 1 time in total.
 
I never make the same mistake twice. Instead I prefer to fill my day with a variety of different mistakes

User avatar
IslandPink
Oooo, Roberts Radio's sound nice
Posts: 7103
Joined: Tue May 29, 2007 7:01 pm
Location: Denbigh, N.Wales

Re: Audio Note CD3.1x FAIL ... false alarm

Post by IslandPink » Sat Aug 29, 2015 1:03 pm

I'm ( finally ) on the case ...!
I think I can do this .
Watch this space.
"The bass is the king of the instruments - it has no known natural predator" (Wobble)

User avatar
pre65
Amstrad Tower of Power
Posts: 17709
Joined: Wed Aug 22, 2007 11:13 pm
Location: North Essex

Re: Audio Note CD3.1x FAIL ... false alarm

Post by pre65 » Sat Aug 29, 2015 1:20 pm

Good luck Mark. :)
Life is what happens to you while you're busy making other plans. John Lennon

G-Popz THE easy listening connoisseur. (Philip)

User avatar
IslandPink
Oooo, Roberts Radio's sound nice
Posts: 7103
Joined: Tue May 29, 2007 7:01 pm
Location: Denbigh, N.Wales

Re: Audio Note CD3.1x FAIL ... false alarm

Post by IslandPink » Sat Aug 29, 2015 1:49 pm

Thanks.
Unfortunately it's only been a partial success :(
The disassembly and re-assembly went well, after all - it wasn't too complex, and I don't think I made any mistakes. The unit I bought appears to be idential to the original Audio Note transport/laser . Once everything was back together, I switched on, loaded a disc, and it still comes up with the same 'no Disc' error message and fails to read the tracks & total time. The laser unit is moving into position and doing its 'thing' so I think the problem must be elsewhere .
I was so pleased I'd done the job, wasn't ready for it not to be working when I switched on :(
"The bass is the king of the instruments - it has no known natural predator" (Wobble)

User avatar
Nick
Site Admin
Posts: 11989
Joined: Sun May 06, 2007 10:20 am
Location: West Yorkshire

Re: Audio Note CD3.1x FAIL ... false alarm

Post by Nick » Sat Aug 29, 2015 1:51 pm

You have unsoldered the link?
Resistance isn't futile it's V / I.

User avatar
IslandPink
Oooo, Roberts Radio's sound nice
Posts: 7103
Joined: Tue May 29, 2007 7:01 pm
Location: Denbigh, N.Wales

Re: Audio Note CD3.1x FAIL ... false alarm

Post by IslandPink » Sat Aug 29, 2015 1:56 pm

Hello .
Link...unsoldering ... ? D'Oh ! - was there something on the laser unit I needed to do ?
As far as the connections to the board go there is a ribbon connector and a six-wire connector jobbie.

In the dim distant depths of me memory I remember you saying something about a little 'tweak' that needs to be done before fitting the unit . Is it a safety connection they have on it before it's fitted ?
"The bass is the king of the instruments - it has no known natural predator" (Wobble)

User avatar
Nick
Site Admin
Posts: 11989
Joined: Sun May 06, 2007 10:20 am
Location: West Yorkshire

Re: Audio Note CD3.1x FAIL ... false alarm

Post by Nick » Sat Aug 29, 2015 3:25 pm

Most laser assemblies are shipped with a solder ball linking two pads on the PCB to protect the diode from static in storage, needs removing before use. Where it is depends on the laser, but its this sort of thing.

Image
Resistance isn't futile it's V / I.

User avatar
IslandPink
Oooo, Roberts Radio's sound nice
Posts: 7103
Joined: Tue May 29, 2007 7:01 pm
Location: Denbigh, N.Wales

Re: Audio Note CD3.1x FAIL ... false alarm

Post by IslandPink » Sat Aug 29, 2015 3:38 pm

OK thanks - I'll have another go at that later .
"The bass is the king of the instruments - it has no known natural predator" (Wobble)

User avatar
IslandPink
Oooo, Roberts Radio's sound nice
Posts: 7103
Joined: Tue May 29, 2007 7:01 pm
Location: Denbigh, N.Wales

Re: Audio Note CD3.1x FAIL ... false alarm

Post by IslandPink » Sat Aug 29, 2015 6:53 pm

Found a solder bridge . Removed it .
Re-assembled and switched on . Still doesn't work ( same error ) . Disc isn't spinning up btw.
Damn !
"The bass is the king of the instruments - it has no known natural predator" (Wobble)

User avatar
Nick
Site Admin
Posts: 11989
Joined: Sun May 06, 2007 10:20 am
Location: West Yorkshire

Re: Audio Note CD3.1x FAIL ... false alarm

Post by Nick » Sat Aug 29, 2015 7:23 pm

Silly question, but is the motor plugged in? Normally a separate connection.
Resistance isn't futile it's V / I.

User avatar
IslandPink
Oooo, Roberts Radio's sound nice
Posts: 7103
Joined: Tue May 29, 2007 7:01 pm
Location: Denbigh, N.Wales

Re: Audio Note CD3.1x FAIL ... false alarm

Post by IslandPink » Sat Aug 29, 2015 7:38 pm

Yes, that's the 6-way one I mentioned above. Definitely connected at both ends again after the second rebuild.
"The bass is the king of the instruments - it has no known natural predator" (Wobble)

User avatar
IslandPink
Oooo, Roberts Radio's sound nice
Posts: 7103
Joined: Tue May 29, 2007 7:01 pm
Location: Denbigh, N.Wales

Re: Audio Note CD3.1x FAIL ... false alarm

Post by IslandPink » Sun Aug 30, 2015 12:19 pm

I'll do one more dis-assembly and re-build now and see if there's anything different I could do . Then I'll need to think of a wider recovery plan, if it doesn't work out.
"The bass is the king of the instruments - it has no known natural predator" (Wobble)

User avatar
IslandPink
Oooo, Roberts Radio's sound nice
Posts: 7103
Joined: Tue May 29, 2007 7:01 pm
Location: Denbigh, N.Wales

Re: Audio Note CD3.1x FAIL ... false alarm

Post by IslandPink » Sun Aug 30, 2015 1:04 pm

Found another ( tiny tiny ) solder bridge on the circuit board where the ribbon ( laser ) connector comes in . Fingers crosssed my ordinary non-EMC soldering iron will not screw the thing with static :roll:
....
"The bass is the king of the instruments - it has no known natural predator" (Wobble)

User avatar
IslandPink
Oooo, Roberts Radio's sound nice
Posts: 7103
Joined: Tue May 29, 2007 7:01 pm
Location: Denbigh, N.Wales

Re: Audio Note CD3.1x FAIL ... false alarm

Post by IslandPink » Sun Aug 30, 2015 1:31 pm

Crikey it works :shock:
From bodger to expert in 2 days !

Now back to the OB speaker ...
"The bass is the king of the instruments - it has no known natural predator" (Wobble)

User avatar
IslandPink
Oooo, Roberts Radio's sound nice
Posts: 7103
Joined: Tue May 29, 2007 7:01 pm
Location: Denbigh, N.Wales

Re: Audio Note CD3.1x FAIL ... false alarm

Post by IslandPink » Sun Aug 30, 2015 2:48 pm

Spoke too soon !
Now it's incredibly picky about how flat the discs are. A couple discs I've been playing happily for years are scraping as they go round and jumping . I wonder if I can put a thin washer under each end of the 'gantry' thing that holds the magnetic top-cap assembly to lift it slightly ? Perhaps removing and replacing it several times has altered the position it's in ?
"The bass is the king of the instruments - it has no known natural predator" (Wobble)

Post Reply