Sony ICF-CDK50 Service Manual ▷ View online
ICF-CDK50
ICF-CDK50
21
21
Ref. No. Location
• Semiconductor
Location
D801
G-4
D802
E-4
D803
F-10
D804
F-10
D901
B-9
D902
C-9
D903
B-10
D904
C-10
D950
D-3
D952
E-7
D953
C-4
IC301
F-11
IC302
D-7
IC801
F-4
IC802
E-3
IC803
E-5
IC805
G-10
Q102
E-8
Q202
E-8
Q301
E-8
Q302
E-9
Q801
G-6
Q802
F-7
Q803
G-5
Q804
E-11
Q805
F-6
Q806
D-4
Q812
E-4
Q813
E-5
Q814
E-10
Q821
E-12
Q950
C-3
Q951
C-3
Q952
D-3
Q953
D-3
6-7. PRINTED WIRING BOARDS - MAIN Section -
•
: Uses unleaded solder.
• See page 15 for Circuit Boards Location.
E C B
Q951
R958
R968
R955
R952
R953
R950
C951
R967
R959
R954
R951
R957
R956
C952
R960
C957
JC24
C882
C831
C881
C837
C832
C838
C834
C835
C954
C839
C840
C845
C801
C885
R902
R905
C894
C836
C841
C887
C858
C842
C884
Q952
B C E
D953
A K A
K A K
Q813
B C E
R874
R901
C833
R870
JC14
R873
R876
R900
JC13
R889
R857
R805
R803
R831
R911
R801
C844
R837
R875
C866
C865
JC18
JC17
JC17
R877
R878
R879
R839
R880
R915
R895
C815
R851
R862
C823
C826 R859
R834
R833
R855 R856
C821
C863
C822
R832
R856
R848
R858
R852
R867
R896
R860
JC23
R897
C888
R854
R861
R853
JC16
R866
R847
R846
R845
R845
R841
R844
R844
C805
C806
R829
R835
R868
R849
JC9
R812
R811
R810
R904
R903
R807
R806
R908
R824
R822
R820
R818
R816
R814
R813
R813
R825
R823
R821
R819
R817
R815
R909
R910
C890
R826
R827
R899
R898
R872
R830
R852 R881
R838
R836
C808
C813
R828
R913
R893
R892
R843
R842
R864
R865
R869
E C B
Q803
R808
C875
C860
R809
R871
R884
R883
R882
JC7
R840
R850
R885
JC20
R894
R886
C854
JC25
R887
R888
C828
C820
C843
R101
R103
R104
R204
R201
R203
FB101
FB301
C107
C151
C206
C106
C109
C209
C203
C103
R112
R111
R110
R212
R109
C251
C207
FB201
R107
R108
R108
R209
R211
R105
R210
R208
R207
R205
C215
C115
C111
C113
R125
R125
R225
C213
C211
R333
C333
R304
C305
C304
C302
R302
R301
C857
C892
R303
JC3
R863
JC21
R314
C316
R313
R120
R121
R220
R221
C219
R219
C119
R222
R122
R309
R224
R124
R235
C318
R135
R226
R227
R127
R126
R131
R129
R128
C123
R804
C802
C309
C354
C804
R802
R961
R962
D952
AK
R130
C128
C228
R230
R228
C223
R119
R231
R229
R906
R890
R891
JC11
D950
A
K
Q806
B C E
D802
Q802
B C
E
Q821
B C E
Q804
B C E
Q814
B C E
Q202
B C E
E C B
Q102
E C B
Q301
E C B
Q302
IC301
IC803
IC302
IC802
3
1
1
80
60
61
21
20
40
41
4
5
IC801
E C B
Q805
E C B
Q812
JW839
JW832
JW840
JW841
JW843
JW844
JW878
JW875
JW879
JW874
JW876
JW877
JW857
JW803
JW859
JW862
JW858
JW882
JW881
JW873
JW852
JW853
JW854
JW835
JW838
JW868
JW864
JW866
JW836
JW820
JW872
JW871
JW869
JW867
JW870
JW837
JW821
JW829
JW824
JW822
JW823
JW827
JW826
JW828
JW863
JW807
JW808
JW816
JW830
JW846
JW847
JW848
JW850
JW856
JW845
JW833
JW865
JW813
JW812
JW810
JW811
JW861
JW860
JW815
JW809
JW814
CN802
JW880
JW817
JW818
JW834
C950
+
C958
+
C955
+
C953
+
C956
+
C311
+
C127
CN303
1
4
+
C227
+
C226
+
C126
+
C310
+
C222
+
C959
+
C125
+
C122
+
C225
+
C217
+
C117
+
C307
+
C819
+
C101
+
C201
+
C205
+
C105
+
C108
+
C208
+
C102
+
C202
+
C110
+
C210
+
C303
+
C301
+
C204
+
C104
+
C811
+
C876
+
C807
+
C830
+
C883
+
CN903
1
2
CN805
1
3
CN810
1
2
7
6
CN811
11
21
0
1
CN812
15
2
16
1
CN801
13
2
14
1
1
IC805
9
CN301
3
1
CN804
1
2
4 5
D804
D803
L805
L802
L801
D801
L804
B
C
E
Q950
B
C
E
Q953
B
C
E
Q801
MAIN BOARD
1-875-929-
(11)
11
CN803
1
2
C907
C902
C904
C901
CN901
1
2
C909
C903
D901
D904
D902
D903
JW902
JW904
CN902
12
C908
+
JW901
JW903
NOT REPLACEABLE:
BUILT IN TRANSFORMER
BUILT IN TRANSFORMER
∗
∗
TM901
TM902
POWER
TRANSFORMER
T901
POWER BOARD
1-875-930-
(11)
11
W803
W802
1-875-934-
(11)
11
BATTERY BOARD
BAT1
LITHIUMION
BATTERY
3V
TU BOARD
CNP1
F
MOTOR BOARD
CN001
E
CD BOARD
CNP702
D
LCD BOARD
C
LCD BOARD
B
LCD BOARD
A
SP201
(R-CH)
SP101
(L-CH)
(L-CH)
1
1 3
5 4
12
6
7
1
2
10
11
1
14
15
28
BUILT-IN
AUDIO CABLE
X802
X801
TU BOARD
G
(AC IN)
TP810 TP811 TP812
1
3
1
2
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
11
12
13
(US,CND)
(US,CND)
(AEP)
(AEP)
W403
W404
W406
(Page 18)
(Page 24)
(Page 24)
(Page 24)
(Page 16)
(Page 20)
(Page 18)
ICF-CDK50
ICF-CDK50
22
22
6-8. SCHEMATIC DIAGRAM - MAIN Section (1/2) -
• See page 26 for waveforms. • See page 26 for IC Block Diagrams. • See page 28 for IC Pin Function Description.
CN801
L805
C860
C81
1
C87
5
R80
8
C876
R809
Q801
R882
R883
R884
R840
R886
JC20
R887
R888
C854
R885
JC7
CN804
C828
C843
C820
C819
D803
D804
JC25
IC805
L804
CN802
C892
JC17
JC18
Q814
C857
JC21
Q802
IC803
C884
D802
Q806
R874
C883
IC802
C830
C831
R909
R905
R863
R871
JC3
R902
R910
C890
JC13
C835
R873 R876
C839
Q812
Q813
C836
C834
C833
C832
C837
C838
X802
R870
R901
R900
X801
C840
C841
C894
R805
R804
C802
C801
R803
R831
R911
R875
R837
R877
R878
R879
R880
R851
R915
R895
C815
R839
C844
C865
C866
C804
C845
R889
C842
C858
R899
R826
R827
R908
R825
R824
L801
R806
R807
R903
R904
R811
R810
R812
R813
R814
R815
R816
R817
R818
R819
R820
R821
R822
R823
C806
C805
C807
L802
JC9
D801
R868
R835
R869
Q803
R849
R841
R896
R897
R864
R865
R866
R867
R84
5
R84
6
R84
7
R84
8
R85
8
R86
0
R85
4
R85
3
R86
1
R85
6
R85
5
R834
R862
R82
9
JC23
C888
C863
C82
1
C822
JC16
C82
3
C826
C251
C151
FB101
FB201
C207
C107
R209
R109
R210
R211
R111
R110
C201
R203
R103
R104
R204
FB301
R207
R208
R108
R107
R212
R112
C215
C115
C202
C10
2
C20
8
C10
8
C20
5
C10
5
C203
C103
C209
C109
C206
C106
C210
C110
IC301
R301
R302
C303
C305
C304
C302
C30
1
R333
C333
C21
1
C21
3
R125
R303
R304
R801
R802
C885
R828
R913
R836
R89
2
R89
3
R85
2
R87
2
R89
8
R838
R881
R857
Q805
R891
R906
JC11
CN803
W803
CN810
CN811
CN812
CN301
R894
R850
Q821
Q804
TP810
TP811
TP812
W802
CN805
C887
C882
C881
R830
C81
3
C80
8
IC801
R85
9
R843
R844
R842
R225
C113
C111
R890
JC14
C104
C204
C101
R205
R105
R101
R201
R83
3
R83
2
14P
0.01
100
10V
0.01
10k
100
10V
10V
0
KTC3205-Y
0
0
0
0
0
0
0
0
0.1
100k
0
5P
0.1
0.1
0.1
47 10V
1N4002B 1N4002B
0
BA6208
11P
100
0
0
RT1N144C
0.01
0
2SC3052EF-T1-LEF
S-80820CNMC
0.01
MC2836
RT1P144C
22k
100
10V
10V
TK11140CSCL
100
10V
10V
0.01
4.7k
4.7k
100k
100k
0
100k
100k
0.022
0
0.01
10k
1k
0.01
2SC3052EF-T1-LEF
2SC3052EF-T1-LEF
47
47
3p
47
3p
47
4.19MHz
1k
10k
0
32.768KHz
10p
22p
8p
10k
10k
0.01
0.01
10k
10k
1k
470
470
1k
2.2k
2.2k
2.2k
1k
1k
100k
0.1
22k
100p
100p
100p
0.01
0.1
10k
0.01
2.2
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
2.2
0.01
100
10V
10V
0
RB721Q-40T-77
1k
1k
1k
RT1N441C
10k
10k
10k
10k
4.7k
4.7k
4.7k
4.7k
1k
1k
1k
1k
1k
1k
1k
2.2k
1k
1k
1k
1k
470
10k
0
100p
100p
100p
10p
0
10p
10p
100p
100p
1000p
1000p
2.2k
2.2k
47k
100k
100k
47k
1
50V
1k
1k
2.2k
2.2k
47k
470k
470k
47k
22k
22k
4700p
4700p
1
50V
1
50V
1
50V
1
50V
1
50V
1
50V
1000p
1000p
100p
100p
1000p
1000p
4.7
50V
4.7
50V
50V
BD3499FV
100
100
47
10V
100p
100p
0.1
100p
10V
22k
4700p
0.1
0.1
4.7k
470
470
1k
2.2k
0.022
2.2k
47k
10k
1k
1k
1k
1k
10k
10k
10k
220k
RT1P144C
22k
47k
0
2P
2P
7P
11P
16P
3P
100k
100k
RT1N144C
RT1P144C
3P
3P
0.47
0.01
0.01
1k
100p
100p
1k
100k
100k
100k
4.7k
0.1
0.1
10k
0
1 50V
1 50V
1 50V
1k
1k
10k
10k
470
1k
1
2
3
4
5
SEG14
SEG15
SEG16
TIMER_JOG+
VOL_JOG+
D_TIMER_LED
COM0
COM1
COM2
COM3
SEG00
SEG01
SEG02
SEG03
SEG04
SEG05
SEG06
SEG07
SEG08
SEG09
SEG10
SEG11
SEG12
SEG13
KEY3
KEY2
KEY1
KEY0
TIMER_J
OG-
VOL_JO
-
CSUB
SYQ
CRST
CRM
DIN
CDO
MCK
RMUT
RCNT
RCLK
RDAT
RCE
RMC
RMC
VOL_JOG-
TIME_JOG-
KEY1
KEY2
KEY3
KEY0
COM
0
COM
1
COM2
COM3
SEG0
0
SEG0
1
SEG02
SEG0
3
SEG04
SEG0
5
SEG0
6
SEG07
SEG0
8
SEG0
9
SEG1
0
SEG1
1
SEG12
SEG1
3
SEG14
SEG1
5
SEG1
6
D_TIMER_LED
TIMER_JOG+
VOL_JOG+
CRST
DIN
CRM
MCK
CSUBSYO
CDO
RMUT
RCNT
RCLK
RDAT
RCE
VT
TU_L-CH
TU_L-CH
TU_R-CH
TU_R-CH
CD_L-CH
CD_L-CH
CD_R-CH
CD_R-CH
L CH
R CH
A M
UTE
P-O
N
BUZZER
AC-IN
L-OUT
D-GND
R-OUT
RESET-X
D-IN
RW
MCK
SUBSYQ
D-OUT
BUSY
LIM
M-GND
AVDD(3.3V)
VM(6V)
M-
M+
GND
CLOSE SW
OPEN SW
R MUTE
R COUNT
R CLOCK
R DATA
R CE
L CH
RADIO 6V
R CH
TU-GND
VT
S-GND
NC
A OUT
B OUT
VCC
GND
NC
A IN
B IN
NC
NC
NC
OUT
VDD
VSS
VO
VI
CNT
GND
NP
BASS
BASS
BASS
BASS
R O
UT
SB2
SA
SB1
L O
UT
VCC
CLK
DA
T
A
A G
N
D
L2
L1
R1
R2
IN_L
CD
IN_R CD
IN_L
AU
TRE
R
TRE L
VOLIN_R
VOLIN_L
IGOUT_L
ICOUT_R
IN_R
A
IN_LA
IN_R TU
IN_L
TU
IN_R AU
IN
REF
MUTE
I-AC-IN
I-R-COUNT
O-R-CLK
O-R-DATA
O-R-CE
O-V-CLK
O-V-DATA
I-RMC
I-C-OPEN
VLC2
VLC1
VLC0
I-RESET
XT2
XT1
FLMD0
X2
X1
REGC2.4V
O-R-
VSS
VDD
O-R-ON
O-CD-ON
I-C-
LIM S
W
I-C-BU
SY
FM/
AM
SHIFT
AT
S
1
AT
S
2
TIM
ER
JOG+
VOL
JOG+
O-T
IMER L
ED
I-C-CLOSE
TRA
Y C
LOS
E
NC
NC
NC
SEG16
SEG15
SEG14
AVSS
AVREF
COM0
COM1
COM2
COM3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG9
SEG10
SEG11
SEG12
SEG13
SEG7
SEG8
I-C-DA
TA
O-C-DA
TA
O-C-R/W
O-C-RSTX
O-A-MUTE
O-P-CON
I-C-SBSYQ
BUZ
ZER
O-BA
TCHK
VOL
JOG-
TIMER
JOG-
TRA
Y
OPEN
I-KEY0
I-KEY1
I-KEY2
I-K
EY3
I-VRSN
NC
I-BACT
HK
O-C-
MCK
(1/2)
W406
W404
W403
VCC
GND
REGULATOR
+3.3V
LOADING
MOTOR
MUTING
B+ SWITCH
Q804,814
1
3
LITHIUM ION
BATTERY
3V
BAT1
B+1
GND
GND
B+
ATS2
ATS1
GND
B+ SWITCH
Q802
AC POWER
SUPPLY DETECT
Q812,8013
SHIFT CLOCK
VCC
RESET SIGNAL
GENERATOR
REGULATOR
+4V
B+ SWITCH
SYSTEM CONTROLLER
BATTERY VOLTAGE DETECT
Q803
(AEP)
(US,CND)
BUILT-IN
AUDIO CABLE
INPUT SELECTOR,
ELECTRICAL
VOLUME
DRIVE
47
μH
1
μH
47
μH
μPD78F0483
47
μH
(Page
23)
(Page 25)
(Page 25)
(Page 25)
(Page 17)
(Page 20)
(Page 19)
ICF-CDK50
ICF-CDK50
23
23
6-9. SCHEMATIC DIAGRAM - MAIN Section (2/2) -
• See page 26 for IC Block Diagrams.
C217
R309
R221
R224
R226
Q202
R220
R222
C219
C307
R227
C222
R127
R126
R135
C318
R314
R235
C316
R313
R124
R122
Q102
R120
R121
R119
C117
C119
R128
C310
R129
R131
C128
C126
C227
R230
C228
C354
C311
R231
R229
R228
C225
Q301
Q302
Q953
Q950
C958
C956
R960
R968
C955
C953
C952
C957
C954
R959
R967
Q951
R956
R957
R958
Q952
R955
R950
R951
R952
R953
D953
JC24
R962
R961
C959
C950
C951
C909
C908
JW902
C904
D904
D903
D901
D902
C902
C901
C903
JW904
JW903
JW901
C907
CN902
SP201
SP101
CN303
CN903
CN901
R219
C127
C123
C125
R130
C309
C226
C122
IC302
T901
R954
D950
D952
C223
1
50V
470
22k
4.7k
0
2SC3052EF-T1-LEF
470k
100
4700p
100
10V
10V
2.2k
1
50V
2.2k
0
220k
4700p
2.2k
220k
4700p
10k
4.7k
100
2SC3052EF-T1-LEF
4.7k
22k
1k
1
50V
4700p
1k
47 10V
220
470
0.22
100
10V
1000
10V
2.2
0.22
0.1
470p
16V
470
220
1k
47
10V
RT1P441C-TP-1
RT1N141C-TP-1
2SD2394-F
2SD2394-F
47
10V
100
10V
100
10
220
10V
470
10V
0.01
0.1
0.1
47
10
RT1P144C-TP-1
1k
1k
1k
2SC3052EF-T1-LEF
10k
2.2k
2.2k
2.2k
2.2k
MC2836
0
1k
1k
220
16V
4700
16V
0.1
0.01
47
25V
0.01
1N4002B
1N4002B
1N4002B
1N4002B
0.01
0.01
0.01
100p
2P
4P
2P
2P
1k
1000
10V
1000p
47
10V
2.2
0.1
100
10V
1
50V
TC8227S
10k
UDZW-TE17-6.8B
MA2J1110GLSO (US,CND)
1000p
1
2
3
4
5
R CH
A MUTE
BUZZER
P-ON
L CH
VT
AC-IN
LIN
+
L N
F
RIP
PLE
BS L
LOU
T
VCC
STBY
ROUT
BS R
PRE
R NF
RIN+
GND
GND
POWER
POW
ER
GND
(2/2)
MUTING
Q102,202
Q301,302
POWER AMP
U
(R-CH)
(L-CH)
ROUT
RGND
LGND
LOUT
(AC IN)
TM901
TM902
POWER
TRANSFORMER
REGULATOR
+6.4V
Q950,953
REGULATOR CONTROL
Q951,952
MA111-TX (AEP)
STANDBY SWITCH
(Page 22)
(Page 19)
ICF-CDK50
ICF-CDK50
24
24
6-10. PRINTED WIRING BOARDS - PANEL Section -
•
: Uses unleaded solder.
• See page 15 for Circuit Boards Location.
JW401
JW402
JW403
JW404
JW405
LCD401
JW409
JW407
JW408
W402
R423
R422
JC408
R430
JC412
JC411
R431
R403
R404
R405
R410
R409
R406
R407
R401
R402
R408
D404
D406
Q404
B C E
R442
R428
R436
R437
R441
R440
R421
R419
R418
W405
1
2
3
S406
S401
S405
S407
S408
S404
S402
S409
S410
S411
S412
S413
S415
S414
1-875-933-
(11)
11
S403
LCD BOARD
1
3
R427
R426
C406
CN409
S416
C407
R415
R420
S417
TIMER BOARD
1-875-932-
(11)
11
1-875-931-
(11)
11
C410
REMOTE CONTROL BOARD
W407
IC401
R424
R425
S418
CN410
1
3
1
3
2
1-875-935-
(11)
11
VOL BOARD
LIQUID CRYSTAL DISPLAY
AUDIO IN
RADIO
BAND
OFF
Y
CD
V
TUNE/TRACK
1
7
MODE
;
OPEN/CLOSE
MEGA BASS
CLOCK/DATE
3
4
5
1
2
PRESET TUNING
W401
W406
A
MAIN BOARD
CN810
1
11
W404
B
MAIN BOARD
CN811
1
16
W403
C
MAIN BOARD
CN812
LCD
BACK LIGHT
(TUNER)
TIME ZONE
D
E
B
A
1
3
2
4
C
TIMER
PUSH START/STOP
1
3
1
3
VOLUME
1
4
1
21
A
B
C
D
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
(Page 21)
(Page 21)
(Page 21)
Click on the first or last page to see other ICF-CDK50 service manuals if exist.