Diagrams; Block Diagram - Sony ICF-1000L Service Manual

ICF-1000L

4-1. BLOCK DIAGRAM

MAIN BOARD
ANT1
FM/SW
TELESCOPIC
ANTENNA
FM
KEY BOARD
SW
DET
CN201
D302
FM1
FM1
D304
FM2
FM2
D303
FM3
FM3
SW304
MANUAL
SW301
FM1
SW302
FM2
SW303
FM3
D301
TUNE
02
SECTION 4

DIAGRAMS

CT1, L2-1 CT2, L2-2 CT3, L3
MW LW SW
TRACKING TRACKING TRACKING
L2-1, CT1
MW CT4, L4
ANT
L2-2, CT2
LW
ANT
L3, CT3 L5, CT5
SW SW
ANT OSC
S1-3 CV1-1 S1-4 S1-5
TUNING
6
AM
OSC
AM
ANT AM
11
FE
Q1
BPF1
FM
ANT
FM
FM FE
13
BPF
FM FM
PON 3V
RF OSC
10 8
S1-1
Q9
(FM)
CT8, L9 CT7, L7, L8
D2, 3
FM
FM FREQUENCY
L7,L8, L9,
OSC TRACKING
COVERAGE
D6
CT7, CT8
D201
IC205
Q202 SWITCH
IC201
KEY IN CONTROL IC202
1
5
2
17 KI/02 KI/06 1 13
IC202
14 KI3 11
7 1
KI/04 19 12
11 KI0
IC202
9
9 14
12 KI1 KI/05 20 6
IC202
13 KI2 3
11 13
KI/07 2 5
7 XIN
X201
KI/01 16
3.68MHz
8 XOUT
– 9 –
B+
CT6
CT6
LW FREQUENCY
S1-6
COVERAGE
(LW)
CT4, L4
MW/LW
MW FREQUENCY
OSC
COVERAGE
CT5, L5
SW FREQUENCY
COVERAGE
S1-7
CV1-2
T1
TUNING
IC1
MW
FM/AM FRONT-END
IF
IF, DET
AM IF
17
DET/AGC
Q6-8
15
TUNING LPF
CF5 CF1 24
METER CONT
455kHz
T1
455kHz
18 FM IF
3 20
CF2 CF3
CF4
10.7MHz 10.7MHz
10.7MHz
FM
Q201
PON 6V
Q203
POWER
PON 3V
3V
CONT
RV202
2 FM1
Q102, 103 Q101
RV203
POWER ON/OFF
10 FM2 PON 6V
CONT DRIVE
RV201
8 FM3
RV205
4
(FM TUNING)
RV204
FM VT
VOLTAGE
3V
AMP BOARD
RV501
TONE
IC601
RV502
POWER AMP
VOLUME
CN602
Q504
TONE
5
9
MUTE
Q501
MUTE
Q502, 503
DRIVE
POWER BOARD
S401
OPERATION
S1-1
(LW/SW) STANDBY ON
Q10
PON 3V
RIPPLE
TU 6V
FILTER
CN401
PON 6V
6V
D101
VT
IC101
DC/DC
3 5
CONV
CONT
2
IC204
• Signal path
3V
3 2
: MW
REG
: FM
– 10 –
CN601
SP1
2
SPEAKER
11
EPJ401
v
AC IN BOARD
T401
POWER
TRANSFORMER
ACJ401
AC IN
D401-404
CN405
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
4PCS, 6V