Led Board - Sony ICF-C253 Service Manual

ICF-C253
4-1. PRINTED WIRING BOARDS
1 2
KEY BOARD
A
S210
DST
S213
CLOCK
S212
B
A-RESET
S214
TIME
S215
TIME
C
POWER BOARD
P150
T150
AC IN
POWER
TRANSFORMER
D
TO
ALARM
DIAL

LED BOARD

B
E
ALARM
MODE
A
W150 1-676-851-
W2
4 1
3 1
11
(11)
16
F
SECTION 4
DIAGRAMS
3 4
S202
OFF
CN200
S204
1
ON
S209 S208 S207
M3
M5 M4
SNOOZE
C156
4 1
S1 BRIGHTNESS
HI
CN150
D155
H
D154
L
C157
D152
D151
D153
LOW
CN201
1
1 3 CN2
5
D9
E
D10
E
1-676
11
-852-
(11)
— 7 —
5 6 7
SP1
TUNING
(SPEAKER)
S200 S201
8
S203
BAND
W151
S205
S206
M2 M1
11
1-676-850- (11)
S211
Q151
C158
D100 W200
1
D101
E E
C108
15 14
X100
E
28 1
29
56
E
42 43
D8 D7 D6
D5-D8
BACK LIGHT
LCD100 (LIQUID CRYSTAL DISPLAY)
8 9
MAIN BOARD
ANTENNA
C9
C30
E
C19
C10 T1
CF1
C25
28 15
CF3
AM FERRITE-ROD
CF2
ANTENNA
1 14
BPF1
C24
3 2 1
L4
C8
E
CT3
L1
L3
K
8
CT1
K
A A
D5
E
11
(11)
1-676-849-
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• b : Pattern from the side which enables seeing.
— 8 —
10
FM
• Semiconductor
VR1
Location
VOL
Ref. No. Location
D5 E-8
D6 E-7
D7 E-6
D8 E-5
D9 E-3
D10 E-3
D100 D-5
D101 D-5
D151 D-4
D152 D-4
D153 D-4
D154 C-4
D155 C-4
D156
IC1 C-8
IC100 E-6
Q2 C-7
Q3 B-8
Q6 E-9
Q7 D-6
Q8 D-6
Q9 E-4
Q10 E-4
Q100 E-5
Q101 E-5
Q151 C-6