Tektronix 485

P270
CR 4-1Q
(A) E X T TRIG
FROM S1IO
< s >
- TRIG
F R O M V R S 3 9
3>
+ t r ig
FROM VR838
CW I VERT
SWITCHING
LOGIC FROM
R»srr<g>
CM 2 VERT
SW ITC H IN G
LOGIC FROM
R .S9S<£>
46S OSCILLOSCOPE
CH2
, -T R IG S'G
TO PIN 1^
<$>
SEE PARTS LIST FOR EARLIER
VALUES AND SERIAL NUMBER
RANGES OF PARTS OUTLINED
OR DEPICTED IN BLUE.
1193-27
REV F , MAR IS73
VERTICAL CHANNEL SWITCHING <^>