Sony ST-SB920, Service Manual

Page: 11 / 23

ST-SB920
—13 — — 14 —
4-4. PRINTED WIRING BOARD – TUNER SECTION – • See page 8 for Circuit Boards Location.
B
DISPLAY BOARD
CN701
C
TRANS
BOARD
CN952
A
DISPLAY BOARD
CN702
1-668-808-
11
(11)
TUNER BOARD
LINE OUT
CNP702 CNP701
CNP952
8 1
1
1
5
8
9 16
1 8
E
1
2
3
E E
E
E
NULL
NULL
STEREO
LEVEL
FM METER
LEVEL
AM METER
LEVEL
NARROW
GAIN
STEREO
SEPARATION
EON CONTROL
OUT
1 8
9 16
E
E
E
E
E
E
E
E E E E
E
1 8
9 16
16
17
20
10
16
1 9
E
11 10
1 20
E
E
E
E
FE101
FM FRONT END
E
E
E
E
E
1 7
1
1
1
22
11
12
4
5 8
2
3
R L
CNJ301
ANTENNA
FM 750
COAXIAL
A B
TM401
FE401
AM FRONT
END
IFT
252
IFT252
THD
IFT253
IFT
253
1 2
A
B
C
D
E
F
G
H
I
3 4 5 6 7 8 9 10 11 12 13
• Semiconductor
Location
Ref. No. Location
D221 H-3
D251 H-9
D301 C-11
D371 B-12
D401 C-4
D402 E-4
D901 C-8
D902 C-8
D903 C-7
D904 C-7
D905 D-7
D906 H-12
D907 D-7
D908 C-8
IC221 H-2
IC251 H-7
IC301 D-11
IC302 C-10
IC401 D-5
IC801 G-11
IC901 D-8
Q200 G-3
Q201 H-4
Q202 H-4
Q204 H-4
Q205 H-5
Q231 G-5
Q232 G-5
Q233 G-4
Q234 H-6
Q235 G-6
Q236 G-6
Q237 G-6
Q251 H-9
Q301 B-10
Q302 B-9
Q303 B-8
Q304 B-8
Q401 E-6
Q402 C-5
Q403 C-5
Q404 D-5
Q405 C-5
Q521 E-8
Q522 E-8
Q523 E-8
Q801 E-11
Q901 D-7