Marantz ST-40 - Page 7

3. SCHEMATIC DIAGRAM (ST-40L)
MZ 2576
Q202
2SCIB09S(P)
UW3V
RAIS
47k
D301
1SS!76,etc.
150 (1/4W)
10k
C302
10/50V
VOLTAGE -
TO-CURRENT
e301 R302 T° 2./V
PHASE
DETECTOR
44V
(2.0V)
VCO OFF
Q30)
I9
kHz
7
TEA558!|
VWF
:
INTERFERENCE
On
FM
STEREO
SUPPRESSION
S\
Q201
25V
SEP.
LAI266
R301
57
kHz
SYNCHRONIZATION
DEMODUL ATOR
LL
£301 Mi
ae 22k CONVERTER
SE if
Fy; (Q,R) 2 -
kH
ae a QAO! 114 kHz
L L
“MW
"MW
ww
JC5478
aI
a 1 /3.8V) (3.8V) oer
i
Big
|
19
kit
0
| cS cS
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=
PILOT-
PILOT
MON(
SNS | = PRESENCE
1
Si
CANCEL
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on
s
L 6-44
O- © P. CAN.
+) C212 O.4V R322
loO/IOV (OV)
+] c307
LAO3
S307
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5311152 20p
i>
Ses |
OC) ui I o---
LH -A4-4 CAI3
DA04S 0.01 RAOB
LW 1SS135 50k
ov LW RAO LC
(0.7V) BAGS
QQ
ov
2.2k
Q50!
@; HD LC7218
ov QA03 a (.9¥)
28021448 : T ee |
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D80I~D805, D807~DBI0 f Cosa
RLIO3SE / DSFIOC 9" Srazi (gv) 1.9V Ge — 1/0 PORT A
D806
:
Ov
=
RD22UB2,MTZuU22D
:
A
C80! Q80l +12Va
NUM78I2A “A ‘.
D803 A <SD | 1/0 PORT B
19.7V <TUNED |
cs80 +] cal
2200 6 771 /50V Tay
35V ov lc A Ripge
Q803 JC547B RBIO ak
5.0V 40 1/0 PORTE
yc5478 KAY | asor 9807 2 470 [ov Sar
A CH" R809
R813 Q802 cai |+ 47k oY
220 L78MRO5 5O0V 100 2 oy
(2W) psog «16V UNIVERSAL
COUNTER
W.3V 5.6V 170 PORT C
a Orr, + >+5.6V
az 1O0/10V
R805
Vv 3.9V 100k
STANDS s RESET
BY G) 1/0 PORT D
a 6V
CaO 4.6V D807
I/50V oy ©) Q804 Boos 0004-2508
ae be/ JC547B MONO: 4.8V ios ov gain
R804 OV MUT ON:0.1V pet TT Tov ae
vo ——— pe ey rn’
Bll = RBI2
R803 Dov 33/50V are aa @5)
“TOk ee N <]+5.6V
ee 7 Beit 8 BIT SERI/
Ov D809 10k
+12Vb Q808 1/0 PORT
an JC547B
+12Va
y,
R506
C512
4.9V
4.91
60)
RST
O° ©
POWER SW. ae BY
NOTE
FM: ————_-—_____
AM: ——?t>—_____
PED SEE OE CEE Ee OE re ()
1Ok 0.01 Ov 1
R507 p502
10k
Noa 2S
To PSO2 (WSO1)
Dad