MODEL
8559A
SERVICE
0- 0
0
A15
VERTICAL DRIVERIBLANKING
r--
VERTICAL
DRIVER
-7
I
VIDEO TRIG
>
PREANPLIFIER
AUX VERT
I
I
i
VERT
-
GAIN
>
SWEEP RAMP HIGWLOY
LIMIT COMPARATOR
I
VER? POSN
BLANKING DRIVER
PENLIFT
VERT
+
>
I
DRIVER
-
I
PENLIFT
>
SWEEP INDICATOR
RETRACE
DRIVER
(r
*
I
I
SUP LEO
>
FIGURE
8-73.
VERTICAL DRlVERlBLANKlNG ASSEMBLY Al5, BLOCK DIAGRAM