Kenwood KDC-Z828 Service Manual page 19

AE AF
SUB UNIT
CN800 CN801 CN850
1
DS GND
DS GND 1 1 1
PNL 5V
PNL 5V 2 +5V 2 2 +5V
D GND
D GND 3 3 3
D GND 4
VFD
VFD 5 4 4
FAC2
FAC2 6 5 5
PNL RST
PNL RST 7 6 6
MAIN FAC1
FAC1 8 7 7
UNIT
SC REQ
-CN1 SC REQ 9 8 8
DATA
10 9 9
DATA
1/2
A
RESET
RESET 11 10 10
2
MC REQ
MC REQ 12 11 11
CLK
CLK 13 12 12
V GND
V GND 14 13 13
AUDIO
AUDIO 15 14 14
DS GND
16 15 15
DS GND
R800
D800
82
BU 5V 17
EJECT
SW
LED SW 18
EJ SW 19
S800 +5V
D GND 20
3
IC900 : UPD703033GC062
IC930 : RS-171
IC940 : BA3830F
IC950 : MSM531622F95TS
IC960 : BA033LBSG
IC961 : TC74HC4050AFT
Q900 : 2SC4081
Q930 : DTA114EUA
Q931 : DTC124EUA
Q960,962 : DTC114EUA
Q961 : DTA124EUA
D800 : B30-2025-05
D900 : B30-1564-05
4
D901 : B30-1628-08
D903,904 : DA227
D905-908,960,961
: HZM6.2ZWA
D982,983,985,986,989,
0V
990,994,997 : B30-1547-05
Q900
0V
REMOTE SENSOR
4.2V
0V
10
IC930
5.0V
4.8V
5.0V
Q931
5
Q930
10K
C930
10
0V 10K
5.0V 0V 0V
C931 R930
0.01 100
+B
R940
3.9K
R942
120K
SA
1.6V
BPF
1.6V
IC940
6
R945
10
+B
CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list).
Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out
!
7
(exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.
• DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual instruments
or/and units.
AG AH
CONTROL UNIT
CN900
DS GND
CN851
1
PNL 5V
1 2 +5V +5V
D GND
2 3
VFD
3 4 4
FAC2
4 5 5
PNL RST R918 470
5 6 31
FAC1
6 7 7
SC REQ R917 470
7 8 86
R916 470
DATA
8 9 98
S901
RESET
SW
RESET
9 10
R919 22K
MC REQ R915 470
10 11 92
CLK R914 470
11 12 99
V GND
12 13
AUDIO R913 3.9K
13 14 4
DS GND
15
D905
D906 D907 D908
+5V
+B
RN904
100K
1.4V 76
SA F03
0V 77
SRC SA F04
0V 78
SA F05
0V 79
SA F06
0V 80
LEVEL M
0V 81
KR5 KR5
0V 82
KR4 KR4
0V 83
KR3 KR3
0V 84
KR2 KR2
RN905
KR1
1K
R905 100K R906 1K 0V
85
KR1
R907 470
0V 86
86 PN SC REQ
5.0V 87
AVCONT
R920
5.0V 88
PN SC CON
89
10K
NC
0V 90
SOURCE
RN906
1K
R921 4.7K 5.0V 91
BLUE
R908 470 0V 92
92 PN MC REQ
D903
1.4V 93
KS4 KS4
1.4V 94
KS3 KS3
TP901
TP900
D904
1.4V 95
KS2 KS2
1.4V 96
4 KS1 KS1
97
PN SC DATA
TP902
0V 98
98 PN MC DATA
5.0V 99
99 PN MC CLK
0V 100
R909 22K
NC
RN908
470
0V
0V
RN900 RN901
100K 100
+B
AI AJ
4
VFD960
FL
1
C963
F1 DISPLAY
4.7
2 +5V
F1
3
C962
F1
0.01
R960
4 10
C960
VDD2(+B)
5 0.01
VSS
6
C961
VSS
7 4.7
VDD1 +B
D960 D961
0V
Q960
8 0V
BK
9
LATCH 9
10
GCP 10
11
4.6V
NP
12
NP
13 8.6V
CLK 13
14
DATA1 14
15
DATA2 15
5.0V
Q962
16
Q961
F2
17
22K
F2
0V
18
F2
22K
0V
5.0V
+5V
+B
5.0V
C909
0.01
C908
0.01
50
AD3
49
AD2
48
AD1
47
AD0
46
NC
45
NC
44
CE
43
OE
42
NC
41
NC
40
NC
39
CLKOUT
IC900 38
VDD
PANEL u-COM
37
VSS
36
X1
35
X2
34
REGC
33
XT2
32
XT1
31
RESET
30
3.8V A4
29
A3
28
A2
27
A1
26
A12
C900
0.01
C901
10
RN902
100
C902
0.01
AK AL
+B
IC960
3.3V
L961
AVR
4.7
5.0V 1
VCC
3.3V S980
5
OUT +B
DISP
0V 2
C964
GND
4 1.4V 0.01
5.0V 3
C
CTL
KR1
FM
S982
IC961
D982
KR2
S986
D986
+B
KR3
VOLTAGE SHIFT
S990
+5V
D990
+B
KR4
AM
S994
D994
KR5
0V
50
0V
49
0V
48
0V
47
RN903
5.0V 100
+B
44
5.0V
43
RN955
RN954
RN907 47K
100
22K
54 32
26
53 30
27
5.0V 52 28
+B
51 26 28
29
0V
RN956
30
100
C905
31
64 33
12P
32
63 31
R904 C906
33
1K 12P 62 29
61 27
C904 1
3.6V
RN957
47K
R903 100K
C903 0.01
5.0V R902 470
+B
5.0V
30
5.0V
29 66
0V
28 65
5.0V
27 16
5.0V
26 15
14
26
25
24
23
70
AM AN
GND LINE
+B B LINE
S981
ATT
EQ 4
VOL+
S984
S983
S985
D983 D985
TI 3
VOL-
S987 S988
S989
D989
6 2
S991 S992 S993
S.A
5 1
S995 S996 S997
D997
IC950
RN953
RN952
5.0V ROM 47K
25
100
VCC
24 0V 18 57
D11 24
20 58
23 0V
D3 23
22 59
22 0V
D10 22 24 60
0V 26 21 0V
D4 D2 21
0V 27 20 0V
RN950
D12 D9 20
100
0V 28 19 0V
D5 D1 19
0V 29 18 0V 17 47
D13 D8 18
19 48
0V 30 17 0V
D6 D0 17
21 49
0V 31
D14 23 50
0V
32
D7
RN951
0V 33
47K
D15/A1
16 5.0V
OE 43
15 0V
VSS
0V 34 14 5.0V
VSS CE 44
13 5.0V
A0 27
12 0V
5.0V 35
A1 28
BYTE
11 5.0V
A2 29
10 5.0V
0V 36
A3 30
A16
5.0V
0V 9
37
A4 19
A15
8 0V
5.0V 38
A5 20
A14
7 0V
0V 39
A6 21
A13
6 0V
0V 40
A7 22
A12
5 5.0V
5.0V 41
A17 67
A11
4 5.0V
5.0V 42
A18 68
A10
3
5.0V 43
NC
A9
2
0V 44
NC
A8
1
0V 45
NC
A19
46
NC
47
NC
48
NC
KDC-Z828,Z828