Read Sony ICF-SW7600GR Service Manual online
9
9
ICF-SW7600GR
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM
20
19
15
16
13
14
5
11
9
22
23
1
9
10
8
1
16
7
10
9
4
13
14
4
24
7
6
8
27
26
1
29
2
30
+
2
1
53
14
56
55
5
6
8
50
1
51
1
23
3
2
7
2
2
2
25
24
52
19
20
54
21
16
17
15
Q112,113
ATT
Q105
ATT
Q205
BAND
SWITCH
Q209
FM
HIGH CUT
Q210
AM
HIGH CUT
Q202
SWITCH
Q203
MUTING
Q211
MUTING
Q214
LINE AMP
Q213
LINE AMP
Q215
MUTING
Q224
B+ SWITCH
Q222,225
B+ SWITCH
Q202
SWITCH
Q223
SWITCH
Q201
SWITCH
Q201
SWITCH
Q208
SWITCH
Q210
SWITCH
Q101
MUTING
CONTROL
Q101
MUTING
CONTROL
Q120
ATT
Q106
ATT
Q114,115
AGC
Q302
CURRENT REG
Q303,306
PLL LPF
Q301
LED DRIVE
Q108,121
AGC
Q109,110
AM MIX
Q111
1ST
IF AMP
Q116
LW/MW
RF AMP
RF AMP
Q107
SW
RF AMP
Q104
FM
RF AMP
Q119
1ST OSC
AMP
Q117
AM VCO
AMP
Q304
FM VCO
AMP
Q206
FM VCO
BUFFER
BUFFER
Q207
AM/FM
SWITCH
Q212
STEREO
CONTROL
Q220
AM/FM
B+ SWITCH
Q219
AM/FM
B+ SWITCH
Q216
DC/DC
CONVERTER
Q221
AM/FM
B+ SWITCH
Q217
AM/FM
B+ SWITCH
Q218
AM/FM
B+ SWITCH
Q305
AM/FM
B+ SWITCH
Q118
1ST OSC
VT
VT
VT
BPF
VT
REG
35
ı
49
9
ı
3
13
ı
10
31
ı
34
KEY
MATRIX
BATT
IC204
+3V REG
REG
REG
VT
ANT101
J101
AM EXT ANT
(EXCEPT CH)
ROD B
BAR B
TO Q112-116
REG
S101
RV101
ATT
ANT102
(FERRITE-ROD)
AGC
AGC
(TELESCOPIC)
T101
FM ANT
CT101
FM TRACKING
FM TRACKING
T102
FM RF
CT102
MUTING
VCOL
VCOH
AM REG
AM REG
T104
AM MIX2
XF101
55.845MHz
T105
AM IFT1
1ST IF
AM REG
T202
FM VCO
X201
AM OSC2
55.390MHz
CT202
2ND LOCAL
CT201
SSB
0 BEAT
RV201
SSB
FINE TUNE
S201
AM MODE
MUTING
MUTING
FMRF
AMIN
BAND
FMOSC
AMOSC-I
AMOSC-O
CERALOCK
SYNC/SSB
VCO
ENV/PSN
DET
METER
SD-OUT
SD-CTRL/AGC
U/L
FEOUT
FMIFOUT
FMIFIN
AMIFIN
FMLIMIN
DISCRI
CF202
10.7MHz
CF201
455kHz
CF203
10.7MHz
CF205
DISCRI
10.7MHz
METER
SD
AGC
RV202
JUST
TUNE
S202
SYNC
MUTING
FM REG
AM REG
RV203
76k(MPX)
IN
VCO
IN2 L
IN1 R
NF2
NF1
VOL
L
R
STOP
IC202
PLL FM MPX
IC203
PRE/POWER AMP
OUT2
OUT1
VCC
S203
TONE
RV204
VOLUMEw
J201
LINE OUT
SP201
(SPEAKER)
J202
(HEADPHONES)
J203
BEEP
MUTING
IC302
DIGITAL TUNING SYSTEM CONTROL
X301
75kHz
S301 - 323
S325 - 328
S325 - 328
S329
HOLD .
BATT
IC303
IC304
IC305
3.5V DET
3.1V DET
3.0V REG
IC301
EEPROM
VDD
VDD
SDA
SCK
XIN
XOUT
KS0-6
KR0-3
HOLD
SI/SO
SCK
VDET
CE
LCD0-14
COM0-3
LIGHT
MUTING
BEEP
SD
METER
MUTING
BEEP
SD
METER
EO
VCOL
VCOH
VCOL
VCOH
AM/FM
BAR/ROD
POWER
+13V
+13V
AM B
ROD B
BAR B
FM REG
AM REG
LCD1
LIQUID CRYSTAL DISPLAY
D301(BACK LIGHT)
IC201
FM/AM FRONT-END
IF,DET
DRY BATTERY
SIZE"AA"
(IEC DESIGNATION R6)
4PCS,6V
EXCEPT CH
(EXCEPT
EA)
CF204
3.64MHz
OFF
ON
ATT
• Abbreviation
CH: Chinese model
EA: Saudi Arabia model
EA: Saudi Arabia model
LSB
USB
NEWS
MUSIC
– SSB SYNC NORM –
HOLD
FREE
: FM
: MW/LW
• Signal Path
: SW
DC IN 6V
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