HP 5340A - Page 251

Model 5340A
Schematic Diagrams
7
Part of Figure 8 - 29. A22 High Frequency Counter Assembly
b
Q13 016
DIR COUNT -
IN
TRIGGER
HI-2 -
LEVEL
SHIFT
u1
-I-
+ +
2 5 - 2
LEVEL
+ SHIFTER
Q17 Q20
- U2B U2A U7
FROM A19 d
FROM A19 Q3-Q9
El-
+
l
I
+5
u4
A
l-
A20+ FROM tT* 04 Q10 GATE FF
, ! I, 2,
FROM A23 /
,I
To
A23
1
i
8 - 58