Tandy 1400LT Service Manual page 123

@ RTC (Real-Time Clock) Check
Q
Check t h e
power
S u p p l y
v o l t a g e (t5V)
DC/DC
C o n v e r t e r c h e c
Check t h e n i c k e l
cadmium b a t t e r y
;
BATTl
I
Check t h e
o s c i l l a t i o n
f r e q u e n c y o f RTC
( P i n 3 of IC36=1Hz : I n i t i a l f r e q u e n c y
by
BIOS)
0
Check
CTL4,C52 a n d
a d j u s t C 5 1
5-14