Yet another Zenith To identify

[Dreamsbeard]

Originally Posted by Electronic M

Sometimes wiring changes were made...It it takes the same power and signals in and spits the correct signals out, that is all the TV cares about.

Slider pots tend to be MUCH less reliable than rotational ones IMO. If you know the pot's resistance try subbing a rotating type and see if that helps.

I think, this might be a good idea, but I have no idea of the sliding pot resistance, can't see anything on the part itself. would anyone have this information on hand? I guess I could short the pot a few seconds just to see...

Thanks!

[zeno]

Just looked at the photo. Looks like this has wires for
the VC & probably audio mute between channels or tone.
Does it have a tone control ? Anyhows on the IF strip
it shows where some of the wires go, check the layout
chart also & be sure every things where it belongs.
Looks like it has an oval SPKR so no bass cut cap.

I will see if I got the manual but my squaw is on vacation &
I just bought her a new car so she wants to go places, not
fix TV's !!! I will get to it though........

BTW Analog meters are best for some tests & alignments.
If you got one unhook the VC & see if it gives smooth ops
across its range. The value should be printed on it. Zenith
used heavy US made sliders but they still sucked like
all others compaired to regular pots.

73 Zeno

[Dreamsbeard]

Originally Posted by zeno

Just looked at the photo. Looks like this has wires for
the VC & probably audio mute between channels or tone.
Does it have a tone control ? Anyhows on the IF strip
it shows where some of the wires go, check the layout
chart also & be sure every things where it belongs.
Looks like it has an oval SPKR so no bass cut cap.

I will see if I got the manual but my squaw is on vacation &
I just bought her a new car so she wants to go places, not
fix TV's !!! I will get to it though........

BTW Analog meters are best for some tests & alignments.
If you got one unhook the VC & see if it gives smooth ops
across its range. The value should be printed on it. Zenith
used heavy US made sliders but they still sucked like
all others compaired to regular pots.

73 Zeno

Well finally got around to spray that thing with WD40. Didn't work. I also checked if it was giving smooth operation all the way with my multimeter (unfortunately I only got an el cheapo digital one). Pot SEEMS to give smooth operation but I am unsure.

I read 0 - 75k ohms on that pot, Zeno does that sound about right to you?

If so, will try to substitute with a rotary one just to see.

Thanks!

[zeno]

75K probably OK but seems like a high value 2 me.
Try hanging a different speaker on it also, could
be the voice coil is stuck. Unplug the in set SPKR for test,
use almost any SPKR for the test.........

73 Zeno
LFOD !