I have SA 20 that's been upgraded (?so SA220?) with similar issues--began few weeks ago, goes to standby for minute or two, then blue light comes back on--no issues with the sound it's producing. Yesterday, would not turn on--no red light, etc. Tried again 30" later, and it operated normally. (hen it wouldn't turn on, had not been running for couple days--i.e., was not hot, etc). Looking for knowledgeable repair person in SF North Bay area...
Counterpoint Natural Progression Turn On Problems
I have a Natural Progression NP 100 Gold Upgrade amplifier that will not turn on. When working properly, from the stand-by mode, you press the power on button, it goes through some type of verification process and then after a minute or so it turns on. However, since three years ago, and in the summer only, it would sometimes end up not turning on or taking much longer than ususal. I chalked it up to possible brown-outs, but it has gotten progressively worse and now will not power up from stand-by at all. I have seen a similar one for sale with the caveat that it wouldn't turn on when the temperature was above about 72ºF. The owner put ice packs on it to turn it on when that happened. I have not tried this. Does anyone have any idea what can be wrong (ie thermal protection circuit?) and who or where can it be fixed? I now live in Europe so if you have any clues for overseas repair, great, if not I'll have it sent to the US. Thamks!
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@johnsonwu gave you some good thoughts. Shipping it to the US is likely prohibitively expensive so I’d make a new post here and ask if someone knows a repair guy in your area, or even quite a bit further. I had the same thing happen to my McCormack amp and it was a faulty input board that’s very difficult to fix if you can even find someone to do it. Just another potential issue to consider, and best of luck. |
It’s always the timer circuit in these older NP100s just a cap and the 555 timer a competent tech can identify it right away But these days cap swappers are common, competent techs are rare. NP220s... maybe the rocker power switch in the front, too much current makes them fail every few years. You can even get those at Lowes or Home Depot.
drsommer I am in Sunnyvale. But most likely you can fix your unit yourself without having to haul it around. |
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