Motorola 12K2 TS-23B First TV Restore

[rwilson]

Thanks for the replies. Yes on the TS-23B and it does have diodes now and a 20 ohm dropping resistor added in series with the fuse resistor.
This is a photo with the B&K 1077B test pattern which we have all seen.
It actually looks better than I thought but I still don't know what the problem is.
This is the best I could make it using the rear controls.

[Electronic M]

Originally Posted by rwilson

Thanks for the replies. Yes on the TS-23B and it does have diodes now and a 20 ohm dropping resistor added in series with the fuse resistor.
This is a photo with the B&K 1077B test pattern which we have all seen.
It actually looks better than I thought but I still don't know what the problem is.
This is the best I could make it using the rear controls.

Horizontal looks decent depending on the mask in the cabinet.
Vertical is pretty far off. If height and V linearity don't fix it, double check you replaced the caps with the right values (and avoided fudging close but wrong values) and check vertical stage resistors are within labeled tolerance...It is most likely a resistor issue.

Is the B&K feeding RF or video to it?