Motorola roundie

[zeno]

This may help or hurt. Been 50 yrs & if wrong please correct.

Burst amp pulls the color sync off the horz blanking pedistal. It on the " back porch " and 8 cycles. Hoz osc pulses gives it the narrow grab, the
burst tube amps it & passes it to the 3.58 for sync.
No burst gives barber pole color or no color. The burst adj can "center" the
tint range.
Dead 3.58 gives a classic pink & green on many sets (RCA), no color,
wrong colors, barber pole. Xtals do go bad but not often. If the
XTAL has a third GND wire use that type.

enuf
Zeno

[old_coot88]

Originally Posted by zeno

This may help or hurt. Been 50 yrs & if wrong please correct.

No burst gives barber pole color or no color.

Been about 55 yrs for me, but I remember it vividly: House call, Zenith console, no color. Subbed tubes, tried color killer, nada. Shopped the set and it was the burst tube, a 6EW6. I had missed it. No excuse, just dumb. Boss wasn't amused. Funny how one remembers one's *bleep*-ups with such clarity.