Icom ID-RP2 Service Manual page 23

SECTION 10 VOLTAGE DIAGRAM
10-1 MAIN UNIT
MAIN UNIT
J8
a
R94 10k
b
c
VCC3
3.3V
h
i
IC14
SC-1409
j
8 1
VCC NCS
7 2
VCC DATA
6 3
DCLK VCC
5 4
ASDI GND
C74
J6
0.1
DS1 SML-310MT R1 1.5k
R2 1.5k
DS2 SML-310MT R3 1.5k
R4 1.5k
DS3 SML-310MT R5 1.5k
R6 1.5k
DS4 SML-310MT R7 1.5k
R8 1.5k
DS5 SML-310MT
DS6 SML-310MT
DS7 SML-310MT
DS8 SML-310MT
J2
13.8V
13.8V
13.8V
to CHASSIS W1
(DC 13.8V IN)
J3
13.8V
13.8V
to CHASSIS W2
13.8V
(ASSIST 1/2 DC 13.8V OUT)
13.8V
J4
13.8V
13.8V
to CHASSIS W3
13.8V
(LOCAL RPT DC 13.8V OUT)
13.8V
J22
to CHASSIS W4
(ASSIST 1 SW)
J23
to CHASSIS W5
(ASSIST 2 SW)
J5
to CHASSIS W4
(POWER SW)
LED UNIT
J1 J14
+13.8V ASSIST A
+13.8V ASSIST B
J24
VCC3
3.28V
IC9
IC36
TC7W08FU
TC7S08FU
1 8
VCC3 1 5
2 7 k
R28
2
10k
3 4
3 6
4 5 CRSTOUT
3.28V
IC10 3.28V
2.74V
MAX3232CSE
9 8
R2OUT R2IN
10 7
T2IN T2OUT
11 6 C64 0.1
T1IN V-
12 5 C63 0.1
R1OUT C2-
13 4
R1IN C2+
14 3
T1OUT C1-
15 2 C61 0.1
GND V+
16 1 C65 0.1
VCC C1+
VCC3
VCC3
3.3V RDY
IC1
TC74LCX245FT
11 10
B8 GND
12 9 CS5
B7 A8
13 8 CS6
B6 A7
14 7 BS
B5 A6
15 6
B4 A5
16 5
B3 A4
17 4
B2 A3
18 3
B1 A2 CP1
19 2
G A1
20 1
VCC DIR1
CONF DONE
R18 ERJ3GE-JPW
STATUS
CONF
VCC3
VCC1
D21
1SS355
VCC3
IC33
3.29V
TA48018F
3.3V
I O
G
C202
0.1
VCC2
C203
D22
0.1
1SS355
IC34
TA48015F
3.3V
I O
G
R201 560
IC13
R202 560
LM2676S-3.3
VCC3
1
SW OUT
C201 L1
2
0.1 INPUT 931BS-220M
3
C BOOST
4
C86
GND
R205
5 0.01
560 NC
6
FEED BACK
7
ON/OFF
C39 22p
VCC3
IC4
HD74LVC14T
1 14
3.28V
13
2 C40 22p
VCC3
3 12
R47
11 C57 0.01 10
R46
4 10k
5 10
R48
9 C58 0.01
10
6
7 8
R49
C59 0.01 10
R260
1k
VCC3
1
RDY
2
RESET
3
CS0
4
CS1
5
CS4
6
CS5
7
CS6
8
BS
3.3V 9
VCC3 VDDQ
10
VSSQ
11
D47
R35 10k 12
D32
1.8V 13
VCC1 VDD
14
VSS
15
D46
16
D33
17
D45
18
D34
19
D44
20
D35
21
VDDQ
22
VSSQ
23
D43
24
D36
25
D42
26
D37
27
D41
28
D38
29
D40
30
D39
31
VDDQ
32
VSSQ
D(15) 33
D15
D(0) 34
D0
D(14) 35
D14
D(1) 36
D1
D(13) 37
D13
D(2) 38
D2
39
VDD
40
VSS
D(12) 41
D12
D(3) 42
D3
43
VDDQ
44
VSSQ
D(11) 45
D11
D(4) 46
D4
D(10) 47
D10
1.81V
D(5) 48
D5
D(9) 49
D9
D(6) 50
D6
BACK 51
BACK/BSREQ
BREQ 52
BREQ/BSACK
D(8)
VCC3
1.51V
D(7)
VCC1
VCC3
R60 10k
R61 10k
IC35
IDT2305-1DC
VCC3
8 1
CLKOUT REF
7 2
CLK4 CLK2
6 3
VDD CLK1
5 4
CLK3 GND
VCC3 VCC3
R52 10k R65 10k
3.3V
R56 10k R66 10k
R54 10k R67 10k
R50 10k R68 10k
R69 10k
R70 C60
ERJ3GE-JPW 22p
VCC1
X3
DMX-26S
VCC3
1.8V
3.3V
C62
22p
156
NMI
155
IRL3
154
IRL2
153
IRL1
152
IRL0
151
MD2/RXD2
150
MD1/TXD2
149
MD0/SCK
148
VSSQ VCC3
147
VDDQ
146
D63
145
D48
144
VSS
143 1.8V
VDD
142
D62 VCC1
141
D49
140
D61
139
D50
138
D60
137
D51
136
VSSQ
135
VDDQ
134
D59
133
D52
132
D58
131
D53
130
IC5
D57
HD6417750SF167 129
D54
128
D56
127
D55
126
VSSQ
125
VDDQ
124
D31
123
D16
122
D30
121
D17
120
D29
119
D18
118
VSS
117
VDD
116
D28
115
D19
114
VSSQ
113
VDDQ
112
D27
111
D20
110
D26
109
D21
108
D25
107
DREQ1
106
DREQ0
105
RXD
R75 10k
VCC3
R74 10k
R73 10k
R72 10k
R64 10k
R63 10k
B - 10 - 1
BUS LINE1
SYSRST
NIRL(0-3)
A(0-25)
BUFCTRL
C66 0.1
C67 0.1
C68 0.1
C69 0.1
C70 0.1
C71 0.1
C72 0.1
C73 0.1
NIRL(3)
NIRL(2)
NIRL(1)
NIRL(0)
k
i
DATA
R88 10k
VCC3
R89 10k
DCLK
R90 10k
R91 10k
D(31)
D(16)
D(30)
D(17)
D(29)
D(18)
D(28)
D(19)
D(27)
D(20)
D(26)
D(21)
D(25)
R76 10k
R77 10k
R78 10k
VCC3
D(22)
D(24)
D(23)
WE3
WE2
RD
CS2
CS3
WE0
WE1
BUS LINE2
BUS LINE3
BUS LINE4
CS0
MAIN UNIT(1/5)