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Tfan  
#1 Posted : Tuesday, September 11, 2012 2:09:45 PM(UTC)
Tfan

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Hello... have a problem here

i was listening to music when the buffalo started loosing lock intermittently for several times (talking about a couple seconds) then silence...
A rapid check shows that lock led is off, no matter of the source as i have the 4-Channel S/PDIF selector connected to a dvd player and an extreamer prodigy media player, tried also to connect a pc with a musiland usb to spdif interface but no changes.

Buffalo is feeded with 5.25v by a Salas LV shunt, output stage is 10k 1:1 TX for i/v conversion and unbalancing, followed by a tube buffer stage.
Everything has worked fine since i've built it, some months ago, whithout problems except for occasionally lock losting when someone ringed at the house door...
what can i check???
Tfan  
#2 Posted : Tuesday, September 11, 2012 2:39:22 PM(UTC)
Tfan

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in case... it's possible to send back to you to have it checked/repaired?
avr300  
#3 Posted : Tuesday, September 11, 2012 2:55:40 PM(UTC)
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Buf II or Buf III ?

If Buf II you can try bypassing the S/PDIF switch. Input S/PDIF directly into the Buf II. Is the 5.25v stable ?
Tfan  
#4 Posted : Tuesday, September 11, 2012 7:44:35 PM(UTC)
Tfan

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Buffalo III, tension is stable at 5.25v
Tfan  
#5 Posted : Wednesday, September 12, 2012 5:48:06 PM(UTC)
Tfan

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anyone?
Tfan  
#6 Posted : Saturday, September 15, 2012 12:49:04 AM(UTC)
Tfan

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one of the trident's output is 1.2v, the one near the lock/mute leds... is this correct?

Edited by user Saturday, September 15, 2012 12:51:34 AM(UTC)  | Reason: Not specified

Russ White  
#7 Posted : Saturday, September 15, 2012 4:21:15 AM(UTC)
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Yes it is correct. Are all of the VREG voltages correct?
Tfan  
#8 Posted : Friday, September 28, 2012 7:34:52 PM(UTC)
Tfan

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Hello, sorry for the late answer... been away for holydays...

voltage outputs:

right trident: 1,2V , left trident 3,25V, AVCC 3,45V both outputs, so looks like everything on the power side is running good

Edited by user Friday, September 28, 2012 7:36:53 PM(UTC)  | Reason: Not specified

avr300  
#9 Posted : Sunday, September 30, 2012 9:41:57 AM(UTC)
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Perhaps a stupid question, but what about the centre trident ?
Tfan  
#10 Posted : Sunday, September 30, 2012 9:43:09 PM(UTC)
Tfan

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nothing stupid, i've just forgot to post it... output is 3,25V

Edited by user Sunday, September 30, 2012 9:44:19 PM(UTC)  | Reason: typo

Tfan  
#11 Posted : Friday, October 5, 2012 6:21:28 PM(UTC)
Tfan

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any chance to have some real help???
Tfan  
#12 Posted : Thursday, October 25, 2012 12:10:49 PM(UTC)
Tfan

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It is possible to have the board serviced???
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