Block Diagram - Sony ICF-SW7600GR Service Manual

4-1. BLOCK DIAGRAM

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