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See_Mos · 9th Oct 2018, 7:51 pm

I had another look at the circuit and thought of another test.

Set both record switches to down and the S.O.S to normal Inject to pin 1 of the radio socket and increase both record levels to the point where the left meter shows 0DB. The right meter should be about minimum. Look at pins 3 then 5 of the radio socket. Next inject to 4. The right meter should now show 0DB and the left minimum, again compare the signals at pins 3 and 5.

Incidentally, I have a 3300 under the desk which apart from the tone controls and power amplifiers is the same machine.

9th Oct 2018, 7:51 pm	#11
See_Mos Hexode Join Date: Nov 2003 Location: Ossett, West Yorkshire, UK. Posts: 483	Re: Tandberg 3000x annoying problem I had another look at the circuit and thought of another test. Set both record switches to down and the S.O.S to normal Inject to pin 1 of the radio socket and increase both record levels to the point where the left meter shows 0DB. The right meter should be about minimum. Look at pins 3 then 5 of the radio socket. Next inject to 4. The right meter should now show 0DB and the left minimum, again compare the signals at pins 3 and 5. Incidentally, I have a 3300 under the desk which apart from the tone controls and power amplifiers is the same machine.