Tandy 1400LT Service Manual page 140

Q
Perform a
READ
Check P i n 1 1 o f C N l l
0
I
Check t h e
F D D
u n i t
and t h e c o n n e c t i o n
I
c a b l e .
I
0
I s a h i g h s i g n a l f e
t o
82C37 (IC18)
RESET
When t h e
MAIN
S W
i s
set t o ON?
0
1
Check
IC10 and IC2.
I s
a clock
s i g n a l f e d t o
CLK of 82C37
P i n 1 2 o f IC18
4.77MHz?
Q
5-3 1