Sony ST-JX44L Service Manual page 19

Fm stereo/fm-am tuner
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H
1C201 pPcl235c
FM
MPX
AEP model:
UK model:
I
J
16.2V
2.sv
pom~O
R123, CII9
39k
10/16V
(3)
5.6V
33k
c208
1O/6V
R208
+
-
| TEM STEREO
SEPARATION
C210
i
C209
100p
22k
Rape l0/16V
1k
we 1
LPF 201
Ral
3.3
Q201,202
2SC1364
6 C2I7
0.47/ 50V
AEP—W. Germany model: Serial No. up to 506500.
Serial No. up to 505600.
Serial No. up to 603000.
K
MUTING
[OUTPUT BOARD (\/2)}
fe] tu)
|
t
+?
Wy
|
|
=50215
SR214
LT4_4T
8%
=
neue
cNy902
T
=
R219
76kHz TO
[ 38 kHz TO ||
LPF202
nt
Il
ourPuT } |
38 kHz
19 kHz
ee
R27
C218
DIVIDER
DIVIDER
T
|
3.3k 04745
De TO MICON SUB BOARD
+
Ov
g4i3
Q413 2SAllI5
\oo/iev T
ST/MONO SWITCH
50!
pso2s
F
CNJ903
Ras0,
CH
477 16V
"Ok
a)
R449
2 3.3k
ch c424
5.7V
22/16V
1,
Q414-419
2SC1364
FL401
FLUORESCENT DISPLAY
TUBE
FL DRIVE
masa
PO
Poa
co--4
rod
|
W
a
ae
ee
>I oteREO
ji!
OW
LL
LL LT
ke iting | LL
LM
I
EL wz! ocken | |
Boo
Ce
bee
eS
EL
a
86
76
66
56
46
36
26
1G
:
2
=
&
228
z8
PPP
PP
0505
47/35v| +
R509
510
33k
FT io0/s0v
[SW BOARD]
ORY. BATTERY
t
=e
;
—~25—
|
a7
RECT:
—31.8V
Q501
2SD880
Q502
2SD809
Q503 250789
Q504
258734
REGULATOR
D501 SIVBIO
0506,507
!0E-2
0508
EQAOI-06R
D502
HZI6-IL
|
D503 HZ6C-2L
504,505 HZ30-2L
REGULATOR
———
TO TUNER
BOARD
ST-JX44L
L
ST-JX44L
[MICON SUB BOARD]
-
IC701 _pPD40IIBC
702,703 2SAI0I5
c70l_j
+
|
=
10
ea
'SWITCHING
+
gr
R707
100k + 47k
R704
100k
R705
100k
—3.8V
WW
R703
100k
Q701
2SCisi5
SWITCHING
\10 TUNER
BOARD
All capacitors are in uF unless otherwise noted. pF > wer
5OWV
or
less are
not
indicated
except
for electrolytics
and tantalums.
All
resistors
are
in ohms,
%W
unless
otherwise
noted.
kQ : 10002, MOQ : 1000k2
eH
: nonflammable resistor.
4:
internal
component.
([__] : panel designation.
[7
: adjustment for repair.
B+ bus.
—-—:
B- bus.
Voltages
are dc with
respect
to ground
unless otherwise
noted.
Readings are taken under no-signal (detuned) conditions
with a VOM (50 k2/V).
NO MARK:
FM
<
>
: AM (MW/LW)
Voltage
variations
may
be noted
due
to normal
produc-
tion tolerances.
Signal path
ote:
part number specified.
—~26—

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