Aiwa XR-MD85 Service Manual page 49

Md/cd stereo system
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IC, BU1920FS
IC, LA1837
IC, TA7291
VCC
IN1
IN2
MUX-
VREF
vaa (14)
RESET (18)
vss (5)
S-HETER
LY
FM IN
Hse}
AM/FM
=BUF
TUNING|
L{STEREO
[|
Pe
ja]
Pe
ANTI-ALTASING
FILTER"
8TH SWITCHES
CAPACITOR
FILTER
COMPARATOR
» PLL
1. 187SKHz
cis
Vret
PROTECTOR
CIRCUIT
(TSD)
63
BECORER
[>
>{anTT-BIRDIE
BEFFEREN
TIAL
BECOER
AM-STERED
bk
L/R-INPUT
8
Se
L
R
4
oe
co)
> HUIMPEDANCE
NOTE
: INPUT "H" ACTIVE

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