Voltage Diagrams - Icom IC-2200H Service Manual

SECTION 11

VOLTAGE DIAGRAMS

11-1 LOGIC UNIT
LOGIC UNIT
+8V
+5V
R2
120k
1 5
4 REMO
3
2
IC24
TA75S393F
TX: 5.0V
R8
RX: 0V
2.2k
TX: 0V
Q1
RX: 4.5V 2SC4116
D4
DAN222
J1 7.5V EXTM1
MICIN EP1
GND EP2
MIC EP3
MICE EP4
to the R20 1k
PTT EP5 MICUD
microphone
EXTMIC EP6
R101 4.7k
MICUD EP7
8V EP8 +8V
+5V
J4
16 15
OPV1 R4 10k OPV1
OPSCK OPSCK
OPV2 R128 10k OPV2
SI
OPV3 R106 10k EXSTB
OPSO OPSO
OPT3
CCS
OPT2
REFMOD
OPT1
to the
optional AFOUT R7 100 AFOUT
unit
SIG_OUT SIG_OUT
DETO DETO/DIGI_AFI DETO
RX_MUTE RX_MUTE
BUSY BUSY
232RX EP9 232RX
232TX EP10 232TX
MIC_IN MIC_IN/ANALOGUE_MOD_IN
MIC_OUT MIC_OUT/DIGI_MOD_OUT
+8V
PTTO PTTO
+5V
PTTI
GND
R550 R549 R548
30 1
0 68 68
+5V
+8V
Q513
R527
2SB798
10k
OP_PS
Q514
2SC4116
D526
MA2S111
J3
NOIS
SD
CTCSS
DETO
IDET
+5V +5V +5V
+5V
+5V
MICGND
MICGND
OPV1 OPV1
SCK
TEMP TEMP
MODIN
UNLK UNLK
REF_V REF_V
DIGI_W DIGI_W
BSHIFT BSHIFT
to the MAIN
OE
unit J11
PLLSTB PLLSTB
PLLCK PLLCK
SO
GND
GND
EXSTB EXSTB
+8V +8V +8V
+8V
+8V
C5V C5V C5V
VOLOUT
LVIN
POWON
CLONE
GND
232RX 232RX
232TX 232TX
+8V
+5V
C5V
R13
4
12k
GND
IC2 IC3
TC4S66F NJM12902V 11
1 5 3
+ 1
2
-
1.9V
2
CP1
R103
3 4
R104
150k
82k
[USA]
C33 18k C79 C42 C44
PTT
0.047 [OTHER] 220p 0.047 0.0056
BIAS
THROUGH
MIC
Q528
DTA144EE
+5V
IC520
CD4066BPWR
1 14
I/O1 VDD
2 13
O/I1 CONT1
3 12
O/I2 CONT4
4 11
I/O2 I/O4
5 10
CONT2 O/I4
ALC 6 9
CONT3 O/I3
7 8
VSS I/O3
MIC_IN/ANALOGUE_MOD_IN
MIC_OUT/DIGI_MOD_OUT
DETO DETO
SI AF OUT
+5V
at ALC ON: 0.95V
IC514
R516 C585
OPT3 AN6123MS
0 0.1
CCS 3 2
INPUT DET
OPT2 4
GND
5 1
OUTPUT VCC
OPT1
R536 C599
10k 0.1
at ALC ON: 1.3V
Q524 R515
2SA1576 100 at ALC ON: 4.95V
+5V
C594
R531 R532
0.001
47k 47k
DIGITAL: 5.0V
+5V
C596 Q515
0.001 2SA1576
R520
PTTI
47k
R524
3 5 10k
- 4
1
+
2
R522
IC521
150k
TC75S51F
CTCSS
R22 1k
+5V SQLV
VOLIN
R62 R61
EVU-F2AF20B14 EVU-F2AF20A14
VOLOUT
+5V
5.0V
C5V
0.7V
R28
100k
NOIS
SD
Q3
1.3V
XP4601
IDET 4 3
R17 R21
68k 68k
5 2
6 1
R37
100k
0.2V
SCK
R29
10k
+5V
C5V
C5V
OE
R58
100k
SO
IC5
R57
HN58X2464TI
15k
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
VSS SDA S1
PWR
VOLOUT
LVIN
POWON
CLONE
+8V
+5V
C5V
1.9V 1.9V
R56
V+ IC3
1
NJM12902V
IC3
NJM12902V
IC6
C56
12 CD4066BPWR
+ 14 0.0022
13 1
-
I/O1
IC3 2
R39 150k C41 C54 O/I1
NJM12902V 3
0.1 0.01 O/I2
9 4
Q527 - 8 I/O2
10 5
UMG2N C57 + CONT2
6
0.0027
CONT3
4 3 DIGI 7
VSS
2
5 1 AN
R47
100k
+5V
R52
IC525
1k
CD4066BPWR EXTMIC
1 14
I/O1 VDD
R27 R36
2 13
O/I1 CONT1 39k 12k
3 12
O/I2 CONT4
4 11
I/O2 I/O4
5 10
CONT2 O/I4
6 9
CONT3 O/I3
7 8
Q2
VSS I/O3
C43
DTC144EU
0.047
DUSE
R26 22k
DETO
DETO
AFOUT
+5V
IC522
CD4066BPWR
R41 12k
C5V
1 14
I/O1 VDD
D25
2 13 DIGI
O/I1 CONT1 MA2S077 C53 56p
3 12
O/I2 CONT4
4 11
I/O2 I/O4
X1 R51
5 10 MOD_I
CONT2 O/I4 CR-739 10
6 9
CONT3 O/I3
7 8
VSS I/O3
R48
1M
THROUGH
AN
+5V
R137
IC524
47k
SN74AHC2G53HDCT
1 8 C5V
COM VCC
2 7
INH Y0
3 6
GND Y1
4 5 DIGI
GND A
Explanatory notes
VOLTAGE LINE
TX LINE
SQLV
RX LINE
COMMON LINE
DIGITAL LINE
D11 1SS133 [TPE], [KOR], [EUR-1]
D13 1SS400 except [EXP/-1]
C5V
D15 1SS400 [EXP/-1]
CTCIN
[EUR/-1], [EXP/-1]
D16 1SS400
C51 D17 1SS400 [TPE], [KOR], [EXP/-1]
0.027 D22 1SS400 [TPE], [EXP/-1]
RESET
D23 1SS400 [TPE], [KOR]
D27 1SS400 except [EXP-1]
D28 1SS400 [EXP/-1]
KR0
V-MHz/SCAN
D7 S2 D9
DAN222 SKQDPA DAN222
KS2
M-CALL/PRIO
S3
+5V SKQDPA
ESCK
ESDA
KR1
KS1 KS1
PWRSW IS2
CLIN IS1
D6
DA221 IS0
Q5
DTC144TU
KR2
TONE/T-SCAN
D8 S4 D21
DAN222 SKQDPA DAN222
CLOUT
R93 1k
PWRON
LOW/DUP
S5
SKQDPA
KR3
SIG_OUT
+8V
+5V
C5V
R72 R81
220k 120k
C72 0.033 R75 68k
R76
14
VDD C73 2.2 R74 150k 18k
13
CONT1
12
CONT4 C71 0.01 R73 180k
11
I/O4
10
O/I4
9
Q525
O/I3
8 DTC144EU
I/O3
BIAS BIAS
DS1
+5V
IS08264E
C5V
R134 R18 R60 R31
10k 56k 56k 56k
REF_V REF_V
C5V C5V
IDET IDET
CTCIN 1
P96/AN6
SQLV 2
P95/AN5
MICUD 3
P94/AN4
SD 4
P93/AN3
LVIN 5
P92/AN2
TEMP 6
P91/AN1
DETO
7
P90/AN0
COLOR 8
P87/TA7IN
DIM0 9
P86/TA7OUT
DIM1 10
P85/TA6IN
DIM2 11
P84/TA6OUT
OE 12
P83/TA5IN
13
P82/TA5OUT
CSHIFT 14
P81/TA4IN/INT5
15
R135 10k P80/TA4OUT/INT5
16
CNVSS
17
XCIN
18
R133 47k XCOUT IC1
RESET 19
RESET M30220MA-132RP
20
XOUT
21
VSS
XIN 22
XIN
C5V
23
VCC
24
P77/NMI
PWRSW 25
P76/INT2
26
P75/INT1
27
P74/INT0
DICK 28
P73/CTS2/RTS2
DIUD 29
P72/CLK2
CLIN 30
P71/RXD2/SCL
31
CLOUT
P70/TXD2/SDA
32
P67/TXD1
33
P66/RXD1
34
P65/CLK1
BUSY 35
P64/CTS1/RTS1/C
36
P63/TXD0
OPSO
SI
R545
1k
SCK
NOIS
R46
1k
C5V
+5V
KR0
MONI/ANM
S6
SKQDPA
COMEXP
D11
BAND1 W/N
D22 D27
SET/LOCK KR0
S7
SKQDPA
D13 D23 D28
TXFREF BAND2 ANI
KR1
IS2
IS1
IS0
KR2
BAND3
S-MW/MW
D16
DIMMER DIM0 DIM1 DIM2
S8
SKQDPA DIM-1 0V 0V 5.0V
DIM-2 0V 5.0V 5.0V
D15 D17
DIM-3 5.0V 0V 5.0V
DIM-4 5.0V 5.0V 5.0V
SCRAM BAND4
BANK/OPT
S10
SKQDPA
KR3
11 - 1
+8V
+5V
C5V
1.9V
DIAL
S9
EVQ-VENF02
IC3
NJM12902V 1
A
6 2
-
7 B
5 3
+
NC
4
COM
1.9V
108 SEG17
SEG19/P103
107 SEG16
SEG20/P104
106 SEG15
SEG21/P105
105 SEG14
SEG22/P106
104 SEG13
SEG23/P107
103 SEG12
SEG24/P110
102 SEG11
SEG25/P111
101 SEG10
SEG26/P112
100 SEG9
SEG27/P113
99 SEG8
SEG28/P114
98 SEG7
SEG29/P115
97 SEG6
SEG30/P116
96 SEG5
SEG31/P117
95 SEG4
SEG32/P120
94 SEG3
SEG33/P121
93
VSS
92 SEG2
SEG34/P122
91 C5V
VCC
90 SEG1
SEG35/P123
89
SEG36/P124
88
SEG37/P125
87
SEG38/P126
86 OPT1
SEG39/P127
85 OPT2
SEG40/P00
84 OPT3
SEG41/P01
83
SEG42/P02
82
SEG43/P03
81 ALC
SEG44/P04
80 THROUGH
SEG45/P05
79 DIGI
SEG46/P06
78 AN
SEG47/P07
77 OP_PS
P10/KI0
76 ESDA
P11/KI1
75 ESCK
P12/KI2
74 DUSE
P13/KI3
73 EXTMIC
P14/KI4
C5V
+5V
+8V
DS3 DS2 DS9 DS8
SEC2422C SEC2422C SEC2422C SEC2422C
R R R R
G G G G
DS5 DS4 DS11 DS10
SEC2422C SEC2422C SEC2422C SEC2422C
R R R R
G G G G
DS7 DS6 DS13 DS12
SEC2422C SEC2422C SEC2422C SEC2422C
R R R R
G G G G
R83 68
Q7 R89 390
R80 R79
2SC4116
1k 4.7k
Q6
DIM0
R86 180 2SA1576
R82 R85 Q8 R94 82
2SC4116
1k 8.2k
DIM1
R97 150
Q12 R100 330
R551
2SC4116
10k
DIM2
R77 5.6k
COLOR