I have a Parasound that has developed a distorted output on its left channel. Any guesses as to what the problem may be before I open it up?
I'm guessing that maybe a Fet up chucked. I think it uses 2SJ115 and 2SK405 as drivers. Anyone know a source for these? They seem to be back ordered everywhere I look.
Thanks is advance.
I'm guessing that maybe a Fet up chucked. I think it uses 2SJ115 and 2SK405 as drivers. Anyone know a source for these? They seem to be back ordered everywhere I look.
Thanks is advance.
Looks like I was a bit premature thinking I had it licked. It runs for a while and then the volume lowers somewhat on the left channel and gets distorted. It runs that way for about 30 seconds and then returns to normal. Watching a sine wave on the scope it looks normal. This happens when it is putting out around 6 watts and still in class A operation.
Any ideas?
Any ideas?
I'm not familiar with this model but if it has relays on the output you might try checking there. The problem I had with the one I was working on was 1). No audio or 2) distorted or low level.
This problem went away when I changed out the 2 relays that are located on the back panel.
This problem went away when I changed out the 2 relays that are located on the back panel.
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- Amplifiers
- Solid State
- Parasound HCA-2000 Problem