Schematic Diagram - Main Board (1/2) - Sony ICF-CDK70 Service Manual

ICF-CDK70
6-5.

SCHEMATIC DIAGRAM - MAIN Board (1/2) -

(1/2)
11 R-MUTE
R-COUNT
R-CLOCK
R-DATA
R-LAT
TU-LCH
TU-6V
TU-RCH
(Page 21)
GND
Q804,805
VT
B+ SWITCH
S-GND
Q804
1
RT1P144C-TP-1
C314
0.01
RT1N144C-TP-1
VT
S-GND
A
VM
M-GND
D-GND
(Page 23)
B
CN801
14P C844
0.1
AVDD(3.3V)
L-OUT
D-GND
R-OUT
RESET-X R882
D-IN C847 10p R883
RW C848 100p R884
MCK C849 10p R885
SUBSYQ R886
D-OUT JC804 0 JC805 0
(Page 19)
BUSY R887
LIM R888
VM(6V)
M-GND C854 0.1
ICF-CDK70
• See page 30 for Waveforms. • See page 33 for IC Pin Function Description.
Q803
RT1N144C-TP-1
MUTING
TMUT
C855
100p
TCNT
TCLK
TDAT
TCE
L-CH
C865
R-CH
100p
C864
100p
Q805
JC802
0
TON TDAT C801 100p R801
TCE C802 100p R802
R803 1k C803 100p
CLMSW
R804 1k C804 100p
CBSY
R805
CDIN
R806
CMCK
R807 1k C807 10p
CDO
R808
CRW
RMC R809 1k C809 100p
P-CD C810 100p R810
A-STBY C811 100p R811
R812
C813 X801 C812
22p 100p
32.768kHz
C863 C814 R814
100p 22p 1k
C866 100p C887
C815 47p R815
CRST
R365
M2-
R366
M2-
R367
M1-
R368
M1+
A-MUTE C818 100p R816
BUZZER C816 100p R817
R819 47k C819 1000p
SW3
L806 R820 47k C820 1000p
SW1
L-OUT SW7 R821 47k C821 1000p
L807 R822 47k C822 1000p
SW2
R-OUT R823 47k C823 1000p
SW6
0 CRST R824 47k C824 1000p
SW5
1k CDIN
1k CRW
470 CMCK
470 CSUBSYQ
CDO
1k CBSY
1k CLMSW
R825 47k C825 1000p
SW8
R866 10k R864
R897
22k
R876
C835 0.01
1k
C833 3p
C832 47p
C831
100p
C891
0.1
1k
O-TU-DO
1k
O-TU-CE
I-CO-LIMSW
I-CD-BUSY
0
O-CD-DIN
0
O-CD-MCK
I-CD-DOUT
0
O-CD-RW
I-RMC
1k
O-POWER CD
1k
O-AMP STANDBY
1k
O-4.5V CE
X0A
SYSTEM CONTROLLER
X1A
IC801
MB90802PF-G
VCC
-124E1
1
VSS
470
O-CD-XRST
470
O-MO2-
470
O-MO2+
470
O-MO1-
470
O-MO1+
470
O-A MUTE
1k
O-BUZZER
O-BASS BOOST OFF
I-TRSW3
I-TRSW1
I-TRSW7
I-TRSW2
I-TRSW6
I-TRSW5
R835
10k
R836
10k
R833 10k
R830 10k
CSUBSYQ
22 22
10k
C839 0.01 C836 47p
C840 22p
C838 47p C834 47p
C837 3p
Q802 Q801
2SC3052EF-T1-LEF 2SC3052EF-T1-LEF
Q801,802
SHIFT CLOCK
L805
R479 10k
SEG15
SEG15
R478 10k
SEG14
SEG14
R477 10k
SEG13
SEG13
R476 10k
SEG12
SEG12
R475 10k
SEG11
SEG11
R474 10k
SEG10
SEG10
R473 10k
SEG9
SEG9
R472 10k
SEG8
SEG8
R471 10k
SEG7
SEG7
R470 10k
SEG6
SEG6
R469 10k
SEG5
SEG5
R468 10k
SEG4
SEG4
R467 10k
SEG3
SEG3
R466 10k SEG2
SEG2
VSS
C890 0.1
VCC
R465 10k
SEG1
SEG1
R464 10k
SEG0
SEG0
R463 10k
COM3
COM3
R462 10k
COM2 R895
COM2
22k
R461 10k
COM1
COM1
R460 10k
COM0 C889
COM0
0.01
VLCD
R860 1k
O-DISC3KEY LED
R859 1k
O-DISC2KEY LED
R858 1k
O-DISC1KEY LED
R855 1k C830 100p
I-RESET
R854 0
MD0
R853 0
MD1
R852 0
MD2
C862
1
R851
10k
CN401
12P
6V
U-GND
RMC VCC
COM0
COM0
L804
COM1
COM1
COM2
COM2
COM3
COM3
(Page 25)
SEG0
SEG0
SEG1
SEG1
SEG2
SEG2
SEG3
SEG3
SEG4
SEG4
CN402
14P
SEG5
SEG5
SEG6
SEG6
SEG7
SEG7
SEG8
SEG8
SEG9
SEG9
SEG10
SEG10
SEG11
SEG11
SEG12
SEG12
SEG13
SEG13 (Page 25)
SEG14
SEG14
SEG15
SEG15
SEG16
SEG16
T-LED T-LED
RMC RMC
CN409
4P
U-GND
R416 470 KEY0
C896 100p T+
T+
C897 100p T-
(Page 25)
T-
R415
2.2k
CN411
6P
DISC3
DISC2
DISC1
KEY0
U-GND
(Page 25)
6V
6V
R443 4.7k
KEY1
KEY1
VCC
DATA
DATA
CLK
CLK
U-GND
RESET
GND
BASS
ENC+
(Page
ENC-
R445 4.7k
KEY2
23)
KEY2
RMC VCC
R441 4.7k
KEY0
4.5V
R+6V
3.3V