Schematic Diagram - Volume/Power Section - Sony ICF-M1000 Service Manual

5-6. SCHEMATIC DIAGRAM – VOLUME/POWER Section –
DIVIDER
IC402
TC7W74FU(TE12R)
VCC PR Q
CLR
CK D Q GND
C425 C424 C423
1 0.1 0.1
D912 D911
1SS133T-77 1SS133T-77
D910
1SS133T-77
+3V REGULATOR
IC901
XC6201P302PR
O I
G
C914
1000
10V
C916 C915
0.01 0.01
ICF-M1000
• See page 16 for IC Block Diagrams.
JC407
0
R421
IC403 1M
LEVEL SHIFT
TC74VHC14FT
(EKJ)
D402
RB520S-3D
-TE61
C426
C445 C427 R420 C429
0.047
1 1 220k 220p
(Page 13)
7 1
R912
10k
C918
JW903 1000p
Q901-903
+7.5V REGULATOR
Q903 R910 R911 D907
2SC3243 1k 1k 1SS133T-77
-TP-E
D908
1SS133T-77
Q902
JW902 2SA1602TP
-1EF
R909
10k
Q901
2SC4154TP
-1EF
C913 C911
220 C912 470 C910 R908
10V 0.01 10V 0.01 4.7k
D909
MTZJ-T-77-7.5B
(Page 13)
W301
CN304
11P
R411 47
R410 C440
1k 0.47
R422
1M
R253
2.2k
SW1
ROTARY ENCODER
TUNE/TIME SET
R424
220k
R423
220k
-1 -2 -1 -2
RV301 RV302
50k/50k 50k/50k
TONE VOLUME
C428
220p
R905 D906 R902
10k 1SS133T-77 220
D913 R903
MTZJ-T-77-15B 470
C908
220
25V
R904
470
F901
D905 3.15A
1SS133T-77
125V
C907
10
JW904 C901 0.1
50V
R906 D901
10k 1N4002B L901 JW901
R907 D902
4.7k 1N4002B L902
C906
0.01
C902
0.1
C903
0.1
D903
1N4002B
R901
1M
D904
1/2W
1N4002B
C905
C904
C909 4700
0.1
0.01 16V
15 15
C128
100p
C228
100p
(CND)
T901
POWER
TRANSFORMER
(US)
(AC IN)
∗NOT REPLACEBLE:
BUILT IN TRNASFORMER
ICF-M1000
Ver. 1.1