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3-5. IC BLOCK DIAGRAMS
@ 1C801
SAA6579T~- T
quaL ©)
RBDA (~)
Vret
()
MUX (A)
Vaaa (x)
SOVLIGA
3IN343434 SNAS
GNY
NOTLVYSN3935Y
239073
SCOUT
¥35G033¢@
WILNSYSS4
16
¥Y3G0936
TOEWAS
3SVHdIG
YAGIAIG
G3XI4
GNV
SIEVIYVA
d007
SViSO3
YOLVHVdWO3
G343073
e@ 1C301
LA3401
FM/AM SELECT
MUTING
YOLVYANSS
LIG@
ALT
WAS
(d3IGHOu1
8) YAGIATG
SS¥dGNVE
yaLTA
ONISVIAV
ZHALS
NOT
LINYLSNOI3Y
YOLVT119S0
-TLNYV
ROCL
157
Osco
OSCI
Vana
Vssa
TEST
TSTLB
FM/AM SELECT CONTROL
LOGIC / MUTE
ON/OFF
@1C221, 251
LA1235
GOO
ia
MUTING
=
CIRCUIT
mae
NULL METER
SHORTING
ad
AF / NULL ul
QUADRATURE
FM IF AMP
ee
LIMITER
DET
METER
¥
QB)»
6)
@
© 1C401
LA1245
e |C701
@|iC501
CX7925B
VSS
IAM] B+
LC75711E
SHIFT
REGISTER
PROGRAMABLE
COUNTER
ADDRESS
ADDRESS
REGISTER
COUNTER
BLINKCYCLE
BLINK
REGISTEA
GENERATOR
OISPLAY
DISPLAY
REGISTER
CONTROL
DUTYCYCLE
DUTY
REGISTER
GENERATOR
GRIO
GRIO
REGISTER
CONTROL
INSTAUCTION
DECODER
CONTROL
OIVIDER
TIMING
GENERATOR
—18—
DM<nDOMOOZ>
' 1 '
BM<r
DO
OHDHSH
9)
G)
be
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