Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

Login
Toslink not working - It'll be something very obvious
Options
View
Go to last post Go to first unread
Previous Topic Next Topic
AlanH  
#1 Posted : Friday, January 30, 2015 3:55:38 AM(UTC)
AlanH

Rank: Member

Groups: Member
Joined: 11/15/2014(UTC)
Posts: 23
New Zealand
Hi,

I have a BIIISE with Legato. SPDIF input works a treat, but I can't seem to get the Toslink to work. Would someone mind verifying that I have it hooked up correctly? I have an LCDPS powering 2 BIIISE DACS at 5.25V each side. I have the Toslink hooked up to one of the LCDPS outputs (+ve and GND) in addition to the DAC. VCC at the Toslink input reads 5.25V. Outputs from Toslink are connected directly to D1 and GND on the DAC. I have the mute led lit, so there seems to be no signal at all getting to the DAC.

What's my next move...?
Back to top

Wanna join the discussion?! Login to your Twisted Pear Audio Support forum accountor Register a new forum account.
Back to top  
Brian Donegan  
#2 Posted : Friday, January 30, 2015 11:50:46 AM(UTC)
Brian Donegan

Rank: Administration

Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 2,868
Location: Massachusetts, USA

Thanks: 2 times
Was thanked: 141 time(s) in 134 post(s)
How it the toslink module configured (which resistors installed)?
Back to top
WWW
AlanH  
#3 Posted : Friday, January 30, 2015 10:35:50 PM(UTC)
AlanH

Rank: Member

Groups: Member
Joined: 11/15/2014(UTC)
Posts: 23
New Zealand
Hopefully for TTL level, but maybe this is where I've gone wrong...
AlanH attached the following image(s):
IMG_6473_2.JPG (206kb) downloaded 38 time(s).

You cannot view/download attachments. Try to login or register.
Back to top
AlanH  
#4 Posted : Wednesday, February 4, 2015 4:40:43 AM(UTC)
AlanH

Rank: Member

Groups: Member
Joined: 11/15/2014(UTC)
Posts: 23
New Zealand
Hi,

Any thoughts on this? I'd love to get this sorted. Thanks!

A
Back to top
Brian Donegan  
#5 Posted : Wednesday, February 4, 2015 6:49:30 PM(UTC)
Brian Donegan

Rank: Administration

Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 2,868
Location: Massachusetts, USA

Thanks: 2 times
Was thanked: 141 time(s) in 134 post(s)
You can check the output of the onboard regulator (pin nearest the edge of the board) to make sure you are getting 3.3V.

If that checks out, I would guess that it is a bad TORX module. If so, I will send you a replacement.
Back to top
WWW
AlanH  
#6 Posted : Wednesday, February 4, 2015 10:44:51 PM(UTC)
AlanH

Rank: Member

Groups: Member
Joined: 11/15/2014(UTC)
Posts: 23
New Zealand
I take it the regulator is IC1? This is showing 5.25V, same as input voltage.
Back to top
AlanH  
#7 Posted : Monday, February 23, 2015 8:55:16 AM(UTC)
AlanH

Rank: Member

Groups: Member
Joined: 11/15/2014(UTC)
Posts: 23
New Zealand
I'm about to order another one, but before I do, would someone mind checking to see if I haven't missed something really obvious...

Thanks all!
Back to top
Rss Feed  Atom Feed
Users browsing this topic
GuestUser (2)
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Youtube
Copyright © Twisted Pear Audio