MyHeresyIsMe
Well-Known Member
I have an opportunity to pick up a 7140 (but not at the lower price you got) ---- is yours still working out well? Has it developed any problems with the either of the channels? Thanks in advance!
Chalkdust
Member
it’s been very nice. I haven’t noticed any issues with it. It continues to perform very nicely. It sounds powerful and smooth.
MyHeresyIsMe
Well-Known Member
Congratulations on selling it and the cassette. I just listened to a friend's 3155 ---- very nice, robust, etc., but his needs cleaning of the pots, switches. Caps could be replaced, at least on the power board & and the driver board. Sounds great right now. He bought it new in '88 (?).
MyHeresyIsMe
Well-Known Member
That's what I'm looking for. Thanks for your response and I hope it continues. I got a 7250PE but it has the same dropping of one or the other channel like I've been reading about. It is a bear with two big boards stacked one on top of the other. I'll give that one available to me another listen and might be prepared to change out the power caps and others.
E2
Addicted Member
The 3155 had a discharge through the speakers on power down. You had to turn the speaker selector to off when powering down.
For what I paid, and what I sold them for I was pleased. Especially on a local sale. CL can be glacial. Have not got involved with FBM....at least yet.
MyHeresyIsMe
Well-Known Member
My 7250PE has that sound like a discharge but when I turn it on, not when I turn it off. I will look at the voltage rating of the caps in the power section but also in the driver board and order some new caps with higher voltage if they look too low.
I live in a very small market setting, so Craigslist won't do me much good. I could try here in Barter Town to sell off the ton of equipment I have although a lot of won't bring much (a lot of 80s Luxman and Onks).
I got my 7140 used and the FM tuner is not working.
I actually bought it with my 2400 NAD amp as a set so I wasn't really worried about the 7140. When I got around to testing the 7140 I found that all other items features function just fine.
So my dilemma is whether I should get the 7140 FM tuner fixed and have it re-capped or purchase a separate tuner (maybe a NAD 4300). From all I have heard on this forum about the 7140 it seems that it would not be a bad decision to fully restore the 7140.
I will monitor this thread closely to help me make my decision.
Thanks
Don
I actually bought it with my 2400 NAD amp as a set so I wasn't really worried about the 7140. When I got around to testing the 7140 I found that all other items features function just fine.
So my dilemma is whether I should get the 7140 FM tuner fixed and have it re-capped or purchase a separate tuner (maybe a NAD 4300). From all I have heard on this forum about the 7140 it seems that it would not be a bad decision to fully restore the 7140.
I will monitor this thread closely to help me make my decision.
Thanks
Don
hnash53
Super Member
Are you using off the shelf isopropyl alcohol? It contains 70% alcohol... the other 30% is water. When the alcohol evaporates, doesn't the water stay behind? Wouldn't that be a problem for electronics?
Deoxit and electronic contact cleaner, as far as I know, do not contain any water... hence their value when used in electronics. Deoxit and isopropyl alcohol are not the same thing.
Please correct me if I'm in error here.
Deoxit and electronic contact cleaner, as far as I know, do not contain any water... hence their value when used in electronics. Deoxit and isopropyl alcohol are not the same thing.
Please correct me if I'm in error here.
Frequency295
Member
Reviving an old thread sorry! @Dony, did you check out the fuses? There is a service bulletin for fuse replacment which affected the Radio section.
Hello Frequency295,
I actually got my NAD 7140 tuner repaired with the help of an awesome Ak member @Ylli as per the thread linked below:
NAD 7140 - FM Tuner problem, would you pay to fix it?
Yes. So far, we noted that there was significant 'hiss' when set to FM. That would indicate there is reasonable gain in the FM/IF chain. If the gain was low, you would not hear the hiss. So first indication is that the tuner section is not working. Those Dual Gate MOSFETS are sensitive to...
audiokarma.org
In my case, it was not the fuse that was causing the problem.