|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
4.244.63.85
Circumstances forced this neat little toy into storage as soon as I got it on eBay a couple of years ago. I just now retrieved it, hooked it up and turned it on, and all that happens is the led power-indicator light goes on. Tubes stay dark and cold and no sound.I unplugged and checked and replugged everything, and nothing looks any way that it shouldn't; put in a pair of known-working tubes, no change. I'm afraid I'm very green with testing electronics--I do have an old analog volt meter somebody gave me but I hardly know how to use it.
Anybody like to suggest a next step? Maybe detach the power supply cable at the preamp and turn on the power with the meter hooked up (if so, I'd have to ask what settings and where to place the probes)? And if there is power there, then...?
Follow Ups:
It could be an electrolytic. I had the same thing happen to me with a Citation amp.
I had a ASL amp and upon internal examination I noticed very poor quality "generic Asian" components throughout.
After that I sold it.
You have a bad filament connection. This could be in the power supply itself, the cable or in the preamp. Since the LED lights there is power, also there is filament voltage. The LED is driven from that. My guess is the cable.
Email me and I can walk you through it. However there are lethal voltages in the preamp, so if you don't feel comfortable, get someone to help you.
I can also repair it for you if you wish.
Do you notice any white looking fog in the tubes? If so, the tubes have lost their vacuum. Also, check for a blown fuse. In any event, if there is no obvious sign of a blown fuse, smoked electronics or the like, I would try to find someone local who could test the tubes.
This post is made possible by the generous support of people like you and our sponsors: