Kenwood KDC-CX85 Service Manual page 10

K L
PC BOARD (COMPONENT SIDE VIEW)
1
X32-4680-00 (J74-0988-01)
TROFF
Q21
R92
LOD
R152
R89
R86 C152
C56
SGND
R93
R111
C154
C55
C77
15 14
MGND
R87
MSTOP
C68
COMMSW
2
R154
1
IC12
DMUTE
R79
28 1
R43 R37
AMUTE Q3
SP/LOD+
R38
SP/LOD-
SL+
SL- Q7
B
Q6
C24
TXTDATA R51
B
C35
Q4
CHMUTE
CP5
3 21 8
AVref0
R44
SLG1
TYPE0
SLG2
TXTCLK
IC5 TYPE1
CP8
50 26
1
22 7
51 25
28
CP4
Q9
W10
R35 E B
C30
R75
W8
R34
12.5MHz
R123
CP10
A13
CP12
A14 IC7
1
A17
75
A15
RD 76 100
ELV+ RAMOK
4 WR
A16
RAMTEST
R110
SRVSEL
S4
SLNSA
ADJSEL
R107
ELV-
R135
8V/7V
D7
C57
C69
R73 EDI ECS
CP14
EDO
13 1 ECLK
IC11
ELV-
14 25
S3 EJSW ELVADJ
C999
R26
ELV+
COMMSW
R29
R127
5
Q12
Q11 D5
E B
R55
IC 1 2 3 5 6 7 8 9 10 11 12 13 51
6 address 3M 3N 3M 3K 4N 4L 5N 4N 4M 4L 2L 3O 2M
Q 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 21 22 23 24 998 999
address 3M 3M 3M 3M 3M 3M 3L 3N 3L 3L 5L 5L 5M 5M 5N 4N 5N 2L 3N 3N 3M 5N 5M
7
Refer to the schematic diagram for the values of resistors and capacitors.
M N
C153
R151
4 5
IC51
1
3 CHCONO1
CN2
RESET
DATAC1
DATAH1
CHMUTE1 Bu+14V
D3
20
C6 23 1
SP/LO-
R1
CN1
D B C A
SL+ F
Rch
C5 F+
LD
T- R69
E
R134
R121
R91
LOESW
D12
Lch
R94
R102 W12
R3
Q5 R138 PD
R101
Vef
1 8
D1
R5
R81
Q22
IC1
Q1 C19 C12
LDON
E R30 D11
4 5
B E
Q24
19
Q2
C95
D2 C9 C11
C72
E R139
R4
R18 IOP1
C13 8
C22 1
C16 R68
R20
C23 R22 20
C67
C7 5 IC2
R65
XOFF
I G O 4 R106
R19
DA5V C62
IC3
L4
R21
C17 C18
L3 MCKO
R108
HOT
Q8
R54 TH1
DAGND
FLAG
W1
R31
CHCON
1
C28
24 R70
R53
R52
X2 W9
25 REFO
80
R66 DIN X1
DOUT
DQSY
LRCK
SCKO
XOFF 49 64
IC9
R71 R57
SBSY 48 1
R58
S8V
IC6
LDON
1 4
R59 PLCK 40 65
TEST2
D5V
41 64
RFCK C1D1
LOCK R62 33 16
W2 C2D3
DSPGND 32 17
R63
8 5
C89
R67 C2D1
TEST/VPP MGND FBAL
C32
SBSO
C43 SFSY
C88
C33
C44
R78 SBCK
R33 C48
L11
R32
FOD
SPD
L8
SLD
L10
TRD
7 1
L9
IC8
14
8
C41
Q13
Q14
C46
D4 D6
Q15
Q999 Q998
E B E B
O P
(FOIL SIDE VIEW)
VR
VR
C79 C79
PD1
PD1
RF
RF
R114 R114
PD2 PD2
R115
C73 R115 C73
1 1
C71 C71
C82 C82
C70 C70
IC13 IC13
W5
W5
ARF ARF
38 38
R106
HOLD HOLD
FE FE
R108
R105
R105
C63 C63
C60
C60
W13 W13
C65 C65
TE TE
RFOK REFO
R109 RFOK
MIRR
MIRR 3T
3T
TBCI
R103
R103
TBCI
TBCO
TBCO
R136 EFM
EFM R136
S2
S2
C89
TBAL TBAL
MGSW MGSW
ARMSW C48
ARMSW
R28
R28
S1
S1 FOD
R27 R27
TRD
IC 1 2 3 5
address 3R 3Q 3R 3T 4Q 4S 5Q 4Q 4R 4S 2S 3P 2R
Q 1 2 3 4
address 3R 3R 3R 3R 3R 3R 3S 3Q 3S 3S 5S 5S 5R 5R 5Q 4Q 5Q 2S 3Q 3Q 3R 5Q 5R
17 18
Q R
X32-4680-00 (J74-0988-01)
R151 C153
5 4
1 3
CHCONO1
CN2
RESET
DATAC1
DATAH1
Bu+14V
CHMUTE1
D3
20
1 23
C6
SP/LO-
R1
CN1
A C B D
F SL+
F+ Rch
C5
LD
T-
E SL-
D12
LOESW
R91 R121
R134
R102 Lch
W12 R94
PD R3 Q5
R138 R101
Q3
Vef 8 1
D1
R5
R81
Q22
IOP2 IC1
C12 C19 Q1
LDON
R30
D11 5 4 E
E B
Q24
19
C9 Q2
C95 C72
C11 D2
R139
IOP1 E
R4
R18 Q4
8 C13
1 C22
R68 C16
R20
20
R22 C23
C67 IC2 5 C7
R65 XOFF
4 O G I
R19
C62
DA5V
IC3
L4 R21
C18 C17
TYPE0
TYPE1
MCKO
L3
TH1 R54
Q8
DAGND
FLAG
HOT
R31 W1
CHCON
25
C29 1 C28
R70 24
R53
R52
X2
25 W9
80 DIN R66
X1
DOUT
DQSY
LRCK
12.5MHz
SCKO
64 49
XOFF
IC9 R57
R71
1 48 SBSY
R58
S8V
IC6
LDON
PLCK
4 1
65 40
R59
TEST2
64 41 D5V
C1D1
16 33 R62 LOCK
SLNSA
RFCK
W2
C2D3
17 32 R63
DSPGND
5 8
C2D1 R67
MGND TEST/VPP
FBAL C32
SBSO SFSY C43
C88
C33
C44
SBCK
R78
R33
L11
R32 Q16
SPD
L8
SLD
L10
1 7
L9
IC8
14 8
C41
Q13
Q14
C46
D6 D4 D5
Q15
Q998
Q999
B E B E
6 7 8 9 10 11 12 13 51
5 6 7 8 9 10 11 12 13 14 15 16 17 21 22 23 24 998 999
S T
TROFF
Q21
R92
R152
R89
LOD
C152 R86
C56 SGND
R93
R153
R111
C154 C55
14 15 C77
MGND
R87
MSTOP
C68
COMMSW
R154
1
IC12
DMUTE
R79
1 28
R37 R43
AMUTE
SP/LOD+ SP/LOD-
R38
SL+
Q7 SL-
B
Q6
C24
R51
TXTDATA
B
C35
CHMUTE
CP5
8 21
AVref0
R44
SLG1
SLG2
TXTCLK
IC5
CP8
26 50
1 22
7
51
CP4 28
Q9
W10
B E R35
C30
R75
W8
R34
R123
CP10
A13
IC7
CP12
A14
1 A17
75
A15
100 76 RD
RAMOK ELV+
WR
A16
RAMTEST
R110
SRVSEL
S4
ELV-
ADJSEL
R107
R135
8V/7V
D7
C57
C69
EDI R73
ECS
CP14
EDO
ECLK
1 13
IC11
ELV-
25 14
EJSW
S3
ELVADJ
C999
R26
ELV+ COMMSW
R29
R127
Q12
Q11
B E
R55