Printed Wiring Board - Key Board - Sony ICF-SW7600GR - Portable Radio Service Manual

ICF-SW7600GR
4-6. PRINTED WIRING BOARD – KEY BOARD –
KEY BOARD
(CONDUCTOR SIDE)
A
S304
POWER
S308
SLEEP
S329
HOLD.
ON OFF
S303 S302 S301
3 2 1
B
S307 S306 S305
6 5 4
C
S311 S310 S309
9 8 7
D
S315 S314 S313
EXE 0 DIRECT
S326 S320
SCAN PAGE
E
S316
FM/AM
S318
S322
S321
F
S317
1 2 3
• Semiconductor
Location
Ref. No. Location
D301 B-6
D302 F-10
D303 F-10
D304 F-10
D305 E-6
D306 E-9
D308 E-4
IC301 E-9
IC302 D-10
IC303 E-5
IC304 F-6
IC305 E-6
Q301 B-6
Q302 E-4
Q303 E-4
Q304 D-4
Q305 D-4
Q306 E-3
S312
LIGHT
C
B E
CN301
1
2
E B
C
C
D
E B B E
S
G
C
G
17
18
S D
S323 S319 3 1
IC305
4 5
K A
a
b
STANDBY MEMORY
IC303
2 1
2 1
3 4 IC304
3 4
S327 S325 S328
AM BAND ERASE ENTER
1-679-367-
4 5 6
KEY BOARD
(COMPONENT SIDE)
D301
(BACK LIGHT)
TO
A
MAIN BOARD
A
K
C333
11
(11)
7 8 9
14 14
LCD1
LIQUID CRYSTAL
DISPLAY PANEL
CN382
X301
42 29
28
43
IC302
56 15
1 14
8 5
C331
IC301
US
1 4
10 11 12
B
TO
MAIN BOARD
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• : Through hole.
a
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side) the parts face are indicated.
11
(11)
1-679-367-
13 14
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from