Quote:
Originally Posted by hyperlag
Hello Everyone,
First time poster here and my first TV and tube restore. I found a farm fresh Canadian CTC-39X recently. After replacing some cooked fuses I got it to power on. But curiously it will only demod sound and give a picture if "Instant-PIC" is turned on. I kind of guessed at the Sam's folder I needed and got 1284-2, but the model in there does seem to have this feature. Without it I get some low power draw when switched on, with it I get a huge inrush then quickly it settles under 300W where I expected it to sit with a funky raster and sound.
I first assumed it was an "instant on" type scenario, but there is no draw when the set is switched off. So I don't think the filaments are being kept warm or anything. Does anyone know what this feature is? I'm a first timer at this, so any tips would be appreciated.
That includes any other tips for what I should look into trying down for the wonked out vertical I am getting.
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How long did your set work after you replaced the blown fuses? If a fuse blows, you can be sure there is a reason, such as a short circuit in the set somewhere, from the power supply forward.
Whatever you do, however, do NOT bypass a blown fuse or use an overrated fuse just to get the TV to operate again. When a fuse blows, as I said above, you can be sure there is a short or some other problem which caused the fuse to blow and open the circuit. If you bypass the fuse or, worse, use an overrated fuse to get the set working again, you are asking for trouble if the condition which originally blew the fuse is still there. I read years ago, I forget where, of a rule of thumb which says allow yourself one, and only one, new fuse when you are troubleshooting a TV or other electronic device. If the replacement fuse blows, you can be sure there is a short or an overload somewhere in the set which must be cleared.