Tandy 1400LT - Page 126

Q
I
Check CTL6, C91,
and C92
(The frequency
is 16MHz)
I
MOTOR ENA(3. 5) signal
level measured at
Pin61
of GATE5 must
be Low.
I
L
1
DRIV SELO (3. 5) signa
level measured at
Pin63 of GATE5
must
be low.
YES
1
I Check GATE5 ]
~FDD unit replacement. I
I
Check the constant C95, C96,
I of IC57. , I[R~I-R~~
Constants
are not
proper.
5-17