Rca ctc179cm

[Jon A.]

I thought only certain Sony sets use auto kine bias. Live and learn. Still probably the only make whose AKB causes the pic to flash on and off when it can't balance the guns.

[rca2000]

I am SURE some RCA sets did, as far back as the CTC131/132. The 169 did NOT do so, nor any others between the 131 and the 179 or so, such as the 180 series. I KNOW the CTC 195/197 DOES use AKB. Not sure if the "HD" chassis of the CTC 170/172 did or not--they are rare anyway. (but i DO have a complete, somewhat working LB from a ctc-170 wiht the 9" tubes I saved..) Not sure about the 179/189/188, but as you know it is a complex, troublesome chassis to work on...do NOT forget about the tuner wrap problem--this chassis DOES have that problem--in SPADES.

[zeno]

I have most RCA training manuals but not this one.
Was this the chassis used in the big CRT sets ? If
so only saw 2 & both had bad FBT's.
CTC175 gives a range of 0-127 for bias
0-63 for drive
Try putting them in the middle & touch up by eye from there.
I think RCA was first with AKB, I remember the seminar a LONG time ago.
Next was Emerson of all people ! Then others but not all followed.

73 Zeno