Epson PX-8 - 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