Kenwood KDC-716S Service Manual page 12

S T
(X13-9960-10)
1
ED1
J1
0V
S.GND 1
10.7V
ILL+B 2
2
0V
CP1
ILLUM G 3
470
L CLK 4
L CE 5
RST
S5
RESET 6
MAIN
L DATAS 7
-CN3
L DATAL 8
1/2
DIMMER 9
R10
NC 10
A 1K 1 4
3
REMO 11 OUT GND2
0V
2 3
GND1 VCC
IC2
REMOTE
CONTOROL
SENSOR
NC 12
0V
D GND 13
VDD 14
5.0V
0V
S.GND 15
4
5
6
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 (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.
7
U V
R12
750
100
Q5
99
Q2
98 10K
CP3
10K 1K
97
CP2
9
76
1K
KS6
77
KI1 KI1
78
5.0V
KI2 KI2
79
KI3 KI3
80
KI4 KI4
R13 81
Q6 KI5 KI5
1K
10K 82 5V
REMO 0V
83
83 RED
10K
84
84 GREEN
85
R11
KEY
4.7
86
VDD 5.0V
87
VLCD 8.5V
88
VLCD0 6.8V
C4 0.1
89
VLCD1 5.1V
C3 0.1
90
VLCD2 3.4V
C2 0.1
91
VLCD3
1.7V
92
VLCD4
0V 93
VSS
94
TEST
R1 43K 95
OSC
C1 680P
5.0V 96
INH
97
97 DO
98
98 CE
99
99 CL
100
100 DI
W X
IC1 : LC75808W
IC2 : RS-171
Q1,2,6 : DTA114EUA or
KRA302
Q3,4 : 2SD2114K
Q5 : 2SC2412K or
2SD601A
Q7 : DTC143ZUA
50
S50 S50
49
S49 S49
48
S48 S48
47
S47 S47
46
S46 S46
45
S45 S45
44
S44 S44
43
S43 S43
42
S42 S42
IC1 41 KI1
S41 S41
40
LCD DRIVER
S40 S40
39
S39 S39
S1
38
S38 S38
37
S37 S37
KI2
36
S36 S36
35
S35 S35
S3
34
S34 S34
33
S33 S33
32 KI3
S32 S32
31
S31 S31
30
S30 S30
S6
29
S29 S29
28
S28 S28
KI4
27
S27 S27
26
S26 S26
KI5
Y Z
D1 : MA3091-M
D2-4 : B30-1571-05
D5-22 : B30-1605-05
D23 : B30-1564-05
B LINE
R17
D7 D6 D5
330
RED
Q3
R15
R18
83
D10 D9 D8
330
10K
GRN
R19
D13 D12 D11
Q4 330
R16
84
10K
R20
D16 D15 D14
330
DIMMER
Q7
47K R21
D19 D18 D17
330
47K
R22
D21 D20
510
D4 D3
R23
D22 D23
360
R24 C10 C9
330 0.01 0.01
C8 0.01
R25
D2
1.2K
R26
1.2K C11 0.01
VOL+
1 SRC DISP
S2 S8 S18 S19 S15
VOL- 2
S4 S9 S26 S28
3
ATT AM dB
S7 S10 S27 S21 S20
4 5 FM
S11 S12 S30 S29 S17 S16
6 TI EJECT CLK
S13 S14 S24 S25 S23 S22
2/2
KDC-716S/8018
AA
OPEN
S31