Kenwood EZ700SR, Service Manual

Page: 29 / 48

Ez700SR/Ez900HDS
29
J I H G F
47K
47K
0V 0V BU 5.0V
5.0V
0V
5.0V
0V
5.0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
3.3V
3.3V
5.0V
0V
5V
5V
0V
0V
3.3V
3.3V
0V
5V
5V
0V
5.0V 5.0V
0V
5V
0V 0V 0V
5V
0V
5.0V 5.0V
0V
5V
0V 0V
5V
0V
0V 0V
5V
0V
5.0V
5V
0V
0V
0V
0V
5V
3.5V
5.0V
0V
5V
5.0V
0V
5.0V
0V
5V
5V
0V
0V
5.0V
20MHz
32.8kHz
3.3V
0V/5.0V
5.0V
0V
0V/5.0V
0V/5.0V
5.0V
0V
5.0V
1.6V 0V 5.0V
0V 5.0V 5.0V 0V 5.0V 5.0V 5.0V 0V
0V/5.0V
0V 0V
0V
0V
3.3V
0V
3.3V
0V
0V
0V
0V
3.3V
3.3V
3.3V
0V
0V
0V
5V
5.0V
5V
0V
0V
V
0V
0V
0V
5.0V
5.0V
5.0V
5.0V
5.0V
0V
5.0V
IC105
IC102
IC503
IC1
IC101
IC403
IC103
D16
D220
D501
Q211
A (X92-5120-00) (X32-5540-02)
EZ900HDS
ONLY
POWER
AMP
E2PROM
MUTE DRIVER
DIGITAL INTERFACE
RECEIVER
3.3V 5V
RST
MAIN u-COM
SDA
SCL
WP
VCC
A2
GND
A1
A0
5
6
7
8
R174 R173
4.7K 4.7K
0.01
1
5
7
6
4
3
2
14
GND
B2
A2
A3
B3
Y3
Y2
B1
A1
Y1
A4
B4
Y4
VCC
10
8
9
11
12
13
R42
100K
14 7
GND
A8
A7
A6
10
9
8
B8
B7
B6
B5
11
12
13
ENABLEG
VCC
3
A5
A4
A3
A2
6
5
4
DIR
A1
2
1
18
B4
B3
B2
B1
15
16
17
19
20
RL+
23
OUT4+
PWGND3
MUTE
VCC1
OFFSET OUT4-
25
PWGND4
18 22 20 24
R293
47K
R292
4.7K
10
R58
10K
R60 2.7K
TH1
47K
R51
1
93
10K R59
4.7K
R39
89
330
R48
1
C27
SW5V
DET
1K
R50
2
3
4
5
88
94
85
30
23
24
29
54
31
32
B
U5V
SW5V
100K
R34
10K R52
100K
R49
0.01 C36
0.01
C504
C272
1
SW5V
SER
V
O
C15
97
R150 470
L DATAL
L DATAS
PLL DATA
R151 470
R152 470
99
98
97
98
99
100
L CLK
20
V
OL B
0.01
C101
9
R103 4.7K
R106 470K
3
1K
R101
100
8
R102 2.2K
SP
AN
CLK P
ANEL DET
1
3 2
FLIP DET VDD
6 4 5
SD
A
SCL
8 7
VSS
R108 2.2M
10 13
2.2K
R104
R105 100
R116 470K
16 17 19
R109 1K
R110 470
NC L CE BEEP REMO
12
11
10
NC
14 15 13
NC NC ILL CON DIM CON
18 17 16
DSI
19 20
VPP
R119 2.2K
25 24 22 23
R117 470K
21
R111 470
R112 2.2K
R115 1K
R114 100 R113 100
M RST M ST
OP
MOSW LO/EJ V
OL A
22
21
25 23 24
27
26
MUTE
LOE/LIM
100K
27
R170
DC OFFSET
SR F LOCK
S-METER
IFC-OUT
LX MUTE
LX REQ M
LX REQ S
KEY-REQ
LO.S SW
12EJE SW
LX DATA S
LX DATA M
77
R142 2.2K
90
NC
R158 100K
R159 100K
R153 100K
R154 100
R155 100
R156 100
96
95
96
LX CLK
94
95
R147 470
R157 100K
R143 2.2K
R144 1K
R149 47K
C111 0.01
90
91
R148 100K
92
93
EJECT
91
R146 470
R168 100K
R165 100
88
C110 0.01
R145 100K
85
86
89
85
86
87
88
NC
R167 100
81
R138 100K
R139 100K
R140 100K
81
82
83
84
NOISE
78
79
80
R135
R137 100K
C114
0.1
76 10K
50
A
CC DET
PS1-1
EXT AMP
PRE MUTE L
PRE MUTE R
A
VCONT
X1
R118
C105
R125
10K
R122 100K
R121 1K
R123 100K
R120 1K
32.768kHz
PANEL 5V
M-MUTE R
M-MUTE L
29
28
31
30
RESET
REGC
33
32
XT1
XT2
35
34
X2
1
R126
29
28
4.7K
30
X101
C103
22P
C104
27P
20.000MHz
18K
R127
1K
10K
R128
TYPE0
IC2 TYPE0
IC2 TYPE1
CLKOUT
39
38
37
36
VDD
VSS
43
42
41
40
TYPE2
TYPE1
SW5V
45
44
CD +B
49
48
47
46
NC
NC
PS1-0
X102
C106
0.01
∗
W101
46
C107 0.1
∗
R133 100K
45
R132
R136 100K
C109
0.01
74
TYPE3
75
PHONE
A
VREF
A
VSS
73 72
LX CON
A
VDD
70 71 69
O-CE
LX RST
O-CLK
67 68 66
CLK CE
57 60 59 62 63
R134
59 62
NC
O-D
A
T
A
65 64 63
P-STBY
NC
61 60
D
ATA
56
NC
PMUTE
58 57
BVSS
BVDD
55
150K
C108
0.01
10K
R129
54 53
52
DIMMER
54 53
BU
DET
PS1-2
51
R131
100
2.2K
50
51
18 19 20 21 13 14 15 16 17 9 10 11 12
LOE/LIM SW
MUTE R
MUTE L
Rch
MST
OP
8EJE SW
MRST
DGND
B
U5.0V
DGND
LO/EJ D5.0V D5.0V
27
CDR
R43 2.2K
0.47
29 28 24 25
0.01 0.1
C35 C16
23
24 22 23
M
OTO
R
S7.5V
SGND
0.1
22
C20
R
9
10
11
13
14
12
R428
100
18K 0.01
20
19
18
16
15
17
RX4
RX2
RX3
AUTO
P
AVSS
RX1
AVDD
ERF
FS96
SDTO
LRCK
1
2
3
5
6
7
8
4
R429 C431
0.01
C432
28
27
26
24
23
22
25
V/TX OCKS0
MCKO1
MCKO2 XTO
PDN
XTI
BICK
DAUX
21
DVSS
TVDD
DVDD
CM1
OCKS1
CM0
VSS NC
4 3
VDD
OUT
1 2
100K
R124
0.1
C102
52
50
45
46
48
47
1
100
0.01
C115
0.01
C113
C112
A8V
B
U5V
CD5V
SER
V
O
SW5V
SW5V
59
BU
100
1
BU5V
26
I-3.3V
14
RST
18
B
U5V
26
74
92
94
BU5V
BU5V
BU5V
RL-
R175
R107 100K
PLL
SCL SD
A
X34-3340-1x (2/6)