Epson PX-8 Technical Manual page 141

REV.-A
Observed signal waveforms
- - - -
RAS and CAS signals
(Top) RAS signal- measured at IC 6A. pin
17
(Bottom) CAS signal- measured at IC 6A. pin
44
Menu display
(Top) RF output - measured at IC 6A. pin
40
(Bottom) Z-RF input - measured at IC 6A. pin
29
1 - - - -
---1
I
>2V
I
500nS
I
I
I
I
G
I:U I :
0 II U
I
I
I
I
I
I
G
I:
U :U W
[
I
I
I
I
I
I
>5V
I
L _______
-.l
t
1\
Enlarged
J
>2V 200nS
G
1
I
,-
G
,
I
>5V
Fig. 2-120 RAS and CAS Signal Waveforms
~
G----------------------I------------
G _ _
Fig.2-121 Z-RF and RF Signal Waveforms
During Menu Display
2-117