my line 3se have the same trouble,mute the volume and make a "click click click..." mute on mute off sequence.first i think about tubes...but after a short time i realise that the trouble may come from the headphone input.cause when you put the jack on it,the preamp click to mute!!! it may come from the haedphone circuit board!!!.since this time,when i listen music for a long period and want to listen trouble free,.....i put a cotton swab on it!!!!
Sonic Frontiers Line - 1 Volume Control
Has any owner of either a SF Line-1, 2 or 3 preamp experienced problems with the volume control? You may know that the control is in fact an optical shaft encoder.
I have had 3 failures of these units.
First pre-amp just "froze" after a few month's use, and was replaced with a brand new model (as opposed to being repaired).
The second unit also developed similar problems after 2.5 years use, though this time the fault was more severe in that the volume control would inexplicably "ramp-up" to maximum (95.5db) unassisted in any way. Took out a few KT88 tubes on one of my power amps before I get to it - and turn off. The preamp was fitted with a new shaft encoder and "logic" box (behind the fascia) under warrantee in 2000, and was fine until last month when the shaft encoder froze (yet again) after turning on from Standby. The unit will still funtion of course via the remote control, so its NOT the end of the world!Have sourced a replacement encoder and awaiting fitting by local techo.
Purpose of this question is to ask if any other owner of these series of otherwise very fine pre-amps have experienced similar problems?
(RH)
I have had 3 failures of these units.
First pre-amp just "froze" after a few month's use, and was replaced with a brand new model (as opposed to being repaired).
The second unit also developed similar problems after 2.5 years use, though this time the fault was more severe in that the volume control would inexplicably "ramp-up" to maximum (95.5db) unassisted in any way. Took out a few KT88 tubes on one of my power amps before I get to it - and turn off. The preamp was fitted with a new shaft encoder and "logic" box (behind the fascia) under warrantee in 2000, and was fine until last month when the shaft encoder froze (yet again) after turning on from Standby. The unit will still funtion of course via the remote control, so its NOT the end of the world!Have sourced a replacement encoder and awaiting fitting by local techo.
Purpose of this question is to ask if any other owner of these series of otherwise very fine pre-amps have experienced similar problems?
(RH)