Tandy Radio Shack Realistic PRO-2004 Service Manual page 60

IC8 TA78005AP
or
HA17805
132
1. INPUT
2. OUTPUT
3. GND
ICg S-81250HG
R4
ZI
L--+ ...... ......--..- ......
_-{3 GNO
D
D
0
123
IC301 MC145158
OSCIN
l1>R
EIIA8I.E
ose OUT
~V
fv REF OUT
osc
1 11
ascOUT
VOO
fR
REF OUT 14
PO OUT
MODULUS
eONTROL
VSS
ENABLE
LD
DATA
fiN CLOCK
DATA
~------------------~
voo.
P11l4
YSS· PI"'
-59 -
OUT