a real challange?

[Yamamaya42]

Originally Posted by Kevin Kuehn

They do show the same thing in Sams 74-3. It's just a little harder to follow because Sams doesn't label the b+ and b- supplies very well.

Main difference I see, ( prob does not matter, but is confusing :/ )
on SAMS 0074-3 tuner section, rf amp area v1, r11,r10, c9, point where the 3 meet goes to r12
(1k) then gnd.

on other schematic (895 ) same area,
r13 r3 ( r11,r10 above ) , c5 ( c9 above ) this is hooked up the same as shown in the SAMS,
however after that it's different, r12 (same as above ) the 1k resistor does NOT tie to gnd, but to a green shielded wire, back to that contrast / picture control circuit.


Which is what is weird, cause before you sent your scans, I was looking and looking, wondering WTH that green wire was, cause I could see it on my set, I could also see it in the underside photos in 0074-3, but could not work out what it was doing going to the tuner, till now.

But who ever said SAMS were 100% accurate? :p