Epson PX-8 Technical Manual page 142

Read/write
(Top)
RF ouput - measured at IC 6A, pin
40
(Bottom) Z-RF input - measured at IC 6A, pin
29
REV.-A
1 - - - - - - 1
I >2V
I
I
I
G~:J--~~~I~~L_--~~--~
I
I
I
I
G_""~~~~~~~~I~OL~~-M
__
~~_
I I
I >5V I
L _ _ _ _ _ _ _ .-l
>2V
GL----------~--
>5V
Fig. 2-122 Z-RF and
RF
Signal Waveforms
During Read/Write
2-118