DOWNLOAD Sony ICF-C773 / ICF-C773L Service Manual ↓ Size: 1.16 MB | Pages: 29 in PDF or view online for FREE

Model
ICF-C773 ICF-C773L
Pages
29
Size
1.16 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icf-c773-icf-c773l.pdf
Date
PREV: Sony SA-WMP1 Service Manual

Sony ICF-C773 / ICF-C773L Service Manual ▷ View online

ICF-C773/C773L
13
13
ICF-C773/C773L
4-3. SCHEMATIC DIAGRAM  – MAIN BOARD (US/CND, IT) (2/2) –
• See page 21 for IC Block Diagram.
• See page 20 for Waveforms.      • See page 22 for IC Pin Function Description.
C115
C117
R128
R129
R109
R110
R112
R113
R114
R115
R116
R136
R137
R138
R139
R117
R111
R121
R119
R120
C104
C101
C144
C145
X101
C120
C122
C123
C124
C125
C126
C127
C108
C109
C110
C111
C112
C113
C114
R132
C135
C140
C137
C138
C139
R131
R130
R104
C106
C105
IC101
uPD17072GB
IC102
C119
L101
220uH
C136
C118
R102
R103
CN104
R127
CN102
R140
0.01
0.01
100k
100k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
10k
1k
10k
10k
4.7k
0.1
0.1
0.1
0.1
75kHz
47p
10p
5p
0.1
0.1
0.01
0.1
0.1
0.1
1
470p
470p
470p
470p
4.7k
0.01
0.01
1000p
1000p
1000p
100k
10
4.7k
0.01
1000p
-574-1A7-A
SM1125-AWV-E2
1000p
47
35V
0.01
47k
47k
10P
100k
23P
22k
BUS
VDD
GND
L CONT
BAND1
CE
LIGHT3
LED+B
EQ
VCOL
VCOH
NF
MUTE
SYSTEM
CONTROL
COM3
CE
INT
BEEP
COM0
MELODY
OSC
SI
SC
ST
TEST
NTO
VDD
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29 30 31 32 33 34 35 36 37 38 39 40 41 42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
COM1
COM2
LCD
LCD1
LCD2
LCD3
LCD4
LCD5
LCD6
LCD7
LCD8
LCD9
LCD10
LCD11
LCD12
LCD13
LCD14
NC
LIGHT1
LIGHT2
LIGHT3
MUTE
KS0
KS1
KS2
KS3
KR0
KR1
KR2
KR3
BAND1
BAND2
INIT1
INIT2
GND
EO
VCOL
VCOH
REG0
VDD
XOUT
XIN
REG1
REGLCD0
CAPLCD0
CAPLCD1
REGLCD1
MERODY ST
MERODY CLK
MERODY DATA
POWER
LIGHT1
GND
LIGHT2
COM0
COM1
COM2
COM3
LCD1
LCD2
LCD3
LCD4
LCD5
LCD6
LCD7
LCD8
LCD9
LCD10
LCD11
LCD12
LCD13
LCD0
GND
LED +B
L CONT
KR3
KR2
KR1
KR0
KS3
KS2
KS1
KS0
GND
DECODER
DATA
1
5
10
15
20
23
BOARD
BOARD
BOARD
MAIN
(1/2)
KEY(MAIN)
LCD
IT
US,CND
(Page17)
(Page17)
(Page12)
ICF-C773/C773L
14
14
ICF-C773/C773L
4-4. SCHEMATIC DIAGRAM  – MAIN BOARD (AEP/UK) (1/2) –
• See page 20 for IC Block Diagram.
C37
C12
CT4
R7
R5
R4
C2
R6
IC1
BPF1
CF1
CF2
T1
R19
R18
C34
C35
C42
C39
TP1
C33
R133
R14
CT1
L1
C16
R1
C3
R3
C46
C26
C27
R17
R11
R13
C21
C1
CT3
CT2
R2
C13
C14
C9
C8
C7
C20
R10
L2
C18
R9
C17
C4
C30
R12
L3
C102
C142
R134
R135
R101
C128
C129
C130
C131
R122
R123
R125
R124
C134
CN103
CN101
Q2
Q1
Q4
Q5
Q101
Q102
Q103
Q104
D3
D4
D101
D102
CF3
C43
R20
Q3
D103
R16
D5
C45
C6
R15
C40
C41
C28
C25
C5
JC4
JC101
JC6
C36
C29
JC3
R22
C132
C44
C47
0.022
47p
4.7k
2.2M
100k
100p
100k
CXA1019M
220
2.2k
0.01
4.7
50V
1
0.047
100p
100k
1k
1000p
1M
470p
2.2k
100p
0.01
0.1
1k
100k
220k
0.01
10p
4.7k
100p
220p
0.01
5p
10p
5p
22k
82nH
10p
4.7k
1000p
0.047
1
470
0.1
1000
6.3V
470k
470k
47
1000p
470p
0.1
0.22
10k
10k
100k
2.2k
220
25V
3P
7P
2SC4154-F
BAND SELECT
SWITCH
2SC3931-C
BAND SELECT
SWITCH
2SA1602-F
MUTE
SWITCH
DTC144EUA
BAND SELECT
SWITCH
2SC4154-F
L.P.F
2SC4154-F
L.P.F
DTC124EUA-T106
CE SWITCH
2SA1602-F
CE SWITCH
HVU202ATRU
HVU202ATRU
1SS355TE-17
1SS355TE-17
470
10V
0
2SC3931-C
RF BUFFER
RD5.1ESB2
47
KV1563M-3
JC
220p
0
22
63V
1
0.1
47
35V
220p
0
0
0
10
50V
4.7
50V
0
0
0.047
220
10V
1
VDD
BUS
GND
L CONT
CE
LED+B
LIGHT3
BAND1
BAND2
EQ
VCOH
NF
VCOL
MUTE
FM
TRACKING
MW IF
ANTENNA
FERRITE-BAR
MW/LW
TRACKING
TRACKING
MW
LW
TP
(VT)
FREQUENCY
COVERAGE
FREQUENCY
COVERAGE
MW
LW
CT4
SPEAKER
SP1
BOARD
POWER
L4
CT2,L4
CT3,L4
L3
T1
+B
LED+B
VT
ANT
L CONT
LIGHT3
GND
BOARD
REG
VOL
GND
BOARD
MAIN
(2/2)
KEY(R)
CT1,L1
(Page17)
(Page15)
(Page19)
ICF-C773/C773L
15
15
ICF-C773/C773L
4-5. SCHEMATIC DIAGRAM  – MAIN BOARD (AEP/UK) (2/2) –
• See page 21 for IC Block Diagram.
• See page 20 for Waveforms.      • See page 22 for IC Pin Function Description.
C115
C116
C117
R126
R128
R129
R109
R110
R112
R113
R114
R115
R116
R136
R137
R138
R139
R117
R111
R119
R120
C104
C101
C144
C145
X101
C120
C122
C123
C124
C125
C126
C127
C108
C109
C110
C111
C112
C113
C114
R132
C135
C140
C137
C138
C139
R131
R130
R104
C106
C105
IC101
uPD17072GB
IC102
C119
L101
220uH
C136
C118
R102
R103
CN104
R127
CN102
R118
R121
R140
0.01
0.01
0.01
100k
100k
100k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
10k
1k
10k
4.7k
0.1
0.1
0.1
0.1
75kHz
47p
10p
5p
0.1
0.1
0.01
0.1
0.1
0.1
1
470p
470p
470p
470p
4.7k
0.01
0.01
1000p
1000p
1000p
100k
10
4.7k
0.01
1000p
-574-1A7-A
SM1125-AWV-E2
1000p
47
35V
0.01
47k
47k
10P
100k
23P
2.2k
4.7k
22k
BUS
VDD
GND
L CONT
BAND2
BAND1
CE
LIGHT3
LED+B
EQ
VCOL
VCOH
NF
MUTE
SYSTEM
CONTROL
COM3
CE
INT
BEEP
COM0
MELODY
OSC
SI
SC
ST
TEST
NTO
VDD
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29 30 31 32 33 34 35 36 37 38 39 40 41 42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
COM1
COM2
LCD
LCD1
LCD2
LCD3
LCD4
LCD5
LCD6
LCD7
LCD8
LCD9
LCD10
LCD11
LCD12
LCD13
LCD14
NC
LIGHT1
LIGHT2
LIGHT3
MUTE
KS0
KS1
KS2
KS3
KR0
KR1
KR2
KR3
BAND1
BAND2
INIT1
INIT2
GND
EO
VCOL
VCOH
REG0
VDD
XOUT
XIN
REG1
REGLCD0
CAPLCD0
CAPLCD1
REGLCD1
MERODY ST
MERODY CLK
MERODY DATA
POWER
LIGHT1
GND
LIGHT2
COM0
COM1
COM2
COM3
LCD1
LCD2
LCD3
LCD4
LCD5
LCD6
LCD7
LCD8
LCD9
LCD10
LCD11
LCD12
LCD13
LCD0
GND
LED +B
L CONT
KR3
KR2
KR1
KR0
KS3
KS2
KS1
KS0
GND
DECODER
DATA
UK
AEP
1
5
10
15
20
23
BOARD
BOARD
BOARD
MAIN
(1/2)
KEY(MAIN)
LCD
(Page17)
(Page17)
(Page14)
ICF-C773/C773L
16
16
ICF-C773/C773L
4-6. PRINTED  WIRING  BOARD  –  KEY, LCD BOARD SECTION –
• See page 20 for Circuit Boards Location.
R308
R305
C305
JC304
JC303
JC302
1
W303
1
CN302
7
5
S311
S312
RV301
BRIGHTNESS
LIGHT
STANDBY
LIGHT
CONTROL
11
(11)
1-865-815-
1
W303
CN301
5
S316
ALARM MODE
S314
ALARM A
S315
ALARM B
S313
D.S.T./     CLOCK
RV302
VOLUME 
N
JC301
R307
R306
11
(11)
1-865-816-
z
BOARD
KEY(R)  
1 2 3
A
MAIN
BOARD
(Page 11)
BOARD
KEY(L)  
D202
BACK LIHGT
D201
BACK LIHGT
R212
LCD201
R202
R205
R204
R209
R208
R207
R206
R211
R210
R213
R201
1
18
C201
Q201
ECB
Q202
ECB
BOARD
LCD  
11
(11)
1-865-818-
D
MAIN
BOARD
(Page 11)
1
23 W201
JC308
JC307
JC306
R304
R303
R302
R301
C304
C303
W301
W302
C302
C301
S309
S302
S310
S303
S308
S304
S307
S306
S305
S301
11
(11)
1-865-814-
BOARD
KEY(MAIN)  
SNOOZE/SLEEP OFF
ENTER/TUNE MODE
SLEEP
BAND/RADIO ON
LIGHT SLEEP
NAP
TUNE/TIME SET+
TUNE/TIME SET-
LIGHT ON/OFF
RADIO OFF/
ALARM RESET
1
1
7
10
C
MAIN
BOARD
(Page 11)
2
3
4
5
6
7
8
9
10
11
A
1
B
C
D
E
F
 : Uses unleaded solder.
Ref. No.    Location
D201
B-4
D202
B-3
Q201
B-2
Q202
B-3
• Semiconductor
Location
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