[Username1]

Normally I don't comment on this because I find it quite ridiculous, but here it goes.....
I see Timmy replaced a 680 Ohm resistor in the Osc. Circuit because it measured
741 Ohms.... I looked around that circuit and I assume it's R179. That resistor
is in the current path, not critical to signal. If you do the tolerance math
(Tolerance = ((Measured Value - Expected Value)/Expected Value) X 100)
you get 8.970% - That makes this resistor out of tolerance only if it's 4th
band is gold. I think most cathode resistors are of no 4th band color,
making them 20%, even if it was a silver band that's 10% and it
should be fine in that part of the circuit. I find it useless and a
waste of money and time to replace that resistor with 1%
resistors, yet I see it over and over again here. Not to
mention, you replaced a resistor most likely within
tolerance for that part of the circuit.

One thing I also find to be of poor practice is to suspect a part that you do not have
the ability to test, like a small value capacitor that is in the signal path IE Not a
decoupling cap. like one in the cathode circuit to ground. Each time anyone
replaces small value caps in the signal path, YES you are de-tuning that
circuit to some degree. This tv has had dozens of parts replaced in
the IF and other sections just a few weeks ago. Potentially
de-tuning each section where parts were replaced.

Another thing to think about is the manufacture of this tv. I know none of you think
about this - so I'll give you something to think about.... Parts like resistors are ordered
by the thousands, lets say they ordered 500 new 680 Ohm resistors for delivery
for the run from Mon - Wed. and all those resistors measured between 690 and
710 Ohms. They certainly did not measure each before installing them, best
case they did spot checks. Each TV Worked as it rolled off the assembly line....
Then for Thurs & Fri they got 680 Ohm resistors that were all 710 - 770 Ohms
and all those sets worked because they went into the current path and simply
were not critical to the tv working & producing a nice picture..... Then think
about this same thing happening to each and every part in the tv. The
engineers set tolerances and the TV worked because part tolerances
happen in manufacturing all the time. And I'm sure that 1960's
parts manufacturing had part variations all over the place....


So back to the tv. Timmy said once he replaced the crystal he had color locked but
the colors were wrong.... So my questions Was the tv on it's side? or was it sitting
on it's legs on the floor..? When it got it's color locked, what happened when you
adjusted the tint & color knobs...? When you turn on a tv show like "All in the Family"
and you get a big head on the screen, Like a closeup of Archie, or Edith, even if the
color is wrong, is it uniform across their entire face? I use All In The Family, as an
example because in that era of tv, they often used facial closeups quite often....

At this time, I think you guys need to determine if the color is locked, as in the
Osc. is at the correct frequency & stable, and if it's possibly out of phase, as
in the tint is out of range...... So Timmy how about a few screen pics
with the tv sitting on it's legs on the floor, and with a close up of
Archie, Edith or some other show where we can easily see
what is going on.... Several Pics, Please also comment
on if the camera is truly representing what's on the
screen. Also Maybe you could post pics of the
far left, Center & far right of the tint control...
Identify those pics separately so we know
they are of tint control range.....
Like maybe put each set of
pics in a different post.

Thanks.....
Have a wonderful day!




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