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I am inserting the small signal board after repairing. Do I have to program some numbers in on the test channel. I remember someone doing that when I replaced the sensor.

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T. Clifton

Posted on Jun 11, 2008


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No signal....stuck on ch 1

Your TV will only do what it has been told to do.
If it has never been programmed for cable, it is doing just what it has been told. NOTHING. Or if someone did auto program the TV without the cable connected, it went all the way through the channels and remembered only those that were there. NONE
With the cable connected, go to TUNE A CHANNEL, and AUTOPROGRAM. (you may have to choose AIR / CABLE before it will AUTO PROGRAM)
Do not stop it or interrupt it until it is finished.

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I do a channel seach but doesn't find any channels. I've done everything it said to do. What do I need to do. I just changed the congergence fuse. Does that have anything to do with the...

check the thin ribbon cables that go from the deflection board to the small signal board they are both right next to each other if those arent seated properly the small signal board will not get any supply voltages from the deflection board

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I have Mackie mixer cfx12 all the channels work except for channels 2 & 3, I turn the pre amp trim pot all the way up but no input is present, I also tried solo PFL for these two channels and no...

I suspect one of the upfront IC amps has been damaged. This can happen if people power the mixer from a receptacle that is different from where other connected equipment is powered such as amp. For example, mixer is at one end of the hall and other inouts such as an output of a guitar amp is plugged in. If a ground fault or spike occurs, teh ground bounce can exceed the common mode voltage of the input amps.

In your case, the inpout amps are discrete transistor types.

A voltage surge into the inputs of your unit would LIKELY pop two bypass caps that are 330pf. For channel 2 these are C205 and C206. Check those for shorts.

VERIFY audio is available at the "send" (tip) of the channel insert connector... this verifies the preamp stage. You can PROBABLY plug a set of headphones in to check this... ONLY one side will have sound of course. Verify this is a good test by checking a working channel. The level will be quite low and we are looking for just some signal.

IF you do have signal on the channel insert send which is the "tip" of the channel insert with the trim turned up, let me know and I will check the schematic for the next thing to check farther down the line.

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My remote to the tv is not working i have replaced the batteries and we need to change the tv to channel 2 in order to watch cable tv but we cannot do that what can we do?

First make sure the batteries are in correctly, if the batteries were corroded clean any acid from contacts. If acid leaked from the batteries it may have eaten into the remotes cicuit board. If all that is ok then you could turn on the cable box and with the menu button on the TV do an auto-program and it should lock in on channel two because it should be the only signal it picks up. If you can take your remote to a repair shop they my be able to test or fix it.
You can also try going to and scroll down to TruTech click on it and srcoll down to your model for part number and price.

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No tv signal on my olevia 232-s12

cable or Ant.. ? after the scan if there is no channels found (0 digital, 0 analog) then try with cable or Ant to see if any of them work.. if they still don't pick up any channels and the whole yellow progress line goes across.. then it sounds like the tuner on the tv is bad.. and the tuner is part of the main-board so the whole main-board will have to be exchange or repair.. contact Amergence technology they are a 3rd party repair center that service Olevia TV's and they will be able to give you an idea on the repair cost..

<<< Amergence Technology number is 866-965-3842 >>

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I turned the tv on and changed the channel. Now it says

What inputs have you tested.If your sure about the program sources and still no signal then replace the AU board.

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Sharp Aquos HDTV Failed to receive broadcast

I too have this issue I beleive what is happening is the integrated tuner is not locking on to the channel because of a weak signal and then sending that error message . I am going to replace the cable from the splitter to this tv and see what happens. I have another new tv just installed from that splitter and it has all chanels. Remember to RE- run the locate all channels after anything is done to the cable splitter etc.

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Tv wont remember channels...

replace your " small signal board " ssb to a tv tech.
that will solve your memory problems

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Tv responds slowly and doesn't hold memory


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Left -Surround channel

If you know anything about testing IC's and transistors, you should not have a problem repairing this amp. I can tell you to look in the output section of the amp, and theres several things in there that can cause this. No boards to replace, only componets soldered into place. The correct way to trouble shoot this reciver would be to hook up some load resistors to where the speakers go. Then insert a 400 to 1000 hz signal at .775mv, then hook up a scope on the amp output or in differant stages to see where its clipping or breaking down. You may also be able to use a componet cooler or heater to make certain parts act up if they are intermittant. Remember though, if you have no training in electronics, your much better off taking the receiver to an expert repair depot or buying a new one, because you can't look at it and say theres the bad part unless its cooked.

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