Originally Posted by OTAhead
I put up an FM anyenna just a few weeks ago with a CM 7777 pre-amp that was brand new in the box. I had stumbled into a really good deal for it a few months ago, so I ordered it so I could use it with the FM antenna. Well, the power supply went kaput last week. I know it is the power supply because I hooked the TV 7777 power supply up to the FM 7777 and it works great.
I just ordered a replacement power supply (open box) from Channel Master... First CM product that has failed on me.
I had ordered a replacement power supply, installed it and got the same result so I figured that there was a problem with the top unit. That was not the case, however. The 7777 did not fail after all.
I took the pre-amp completely off the antenna a couple of weeks ago, and to my surprise, I am still getting great reception from the Houston stations, even KTBZs digital signal. Eh, a dropout every now and then... BUT, while listening this past weekend, I lost all reception again. Kaput. Nothing. I turned the receiver off and then back on... I was receiving stations again. So... apparently the problem is inherent in the receiver, not the pre-amp. It appeared to be in the pre-amp because I turned off the receiver when changing power supplies.
I just got through checking the original power supply along with the replacement that I bought, and both are functioning perfectly (both putting out 23.15 volts). So apparently I have a good complete 7777 and a good back-up power supply. Sure am glad!
I'm not real, real happy about the Sangean HD receiver however...Edited by OTAhead - 7/2/12 at 12:41pm