Icom IC-F2610 Service Manual page 34

SECTION 11 VOLTAGE DIAGRAM
11-1 FRONT UNIT
DS1
LD-NU10377E
SEG54 103
SEG54
104
SEG55
SEG55
SEG56 105
SEG56
SEG57 106
SEG57
SEG58 107
SEG58
SEG59 108
SEG59
SEG60 109
SEG60
SEG61 110
SEG61
111
SEG62
SEG62
SEG63 112
SEG63
SEG64 113
SEG64
SEG65 114
SEG65
SEG66 115
SEG66
SEG67 116
SEG67 SED1526F0A
SEG68 117
SEG68
SEG69 118
SEG69
SEG70 119
SEG70
SEG71 120
SEG71
SEG72 121
SEG72
SEG73 122
SEG73
SEG74 123
SEG74
SEG75 124
SEG75
SEG76 125
SEG76
SEG77 126
SEG77
SEG78 127
SEG78
SEG79 128
SEG79
C1
0.1
C2
0.1
C3
0.1
C4
0.1
C5
0.1
C7
R3
R1 R2 1 5.04V
C6
1.2M RV-158 1M
1
C8 C9
0.1 0.001
-2.0V
C.P
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LIGHT ON (DIM OFF) 7.64V LIGHT ON (DIM OFF) 7.75V
LIGHT ON (DIM ON) 5.99V LIGHT ON (DIM ON)
LIGHT OFF 0V LIGHT OFF
+8V
Q6
DTA143ZU
R29
270
R27 R28
150 150
DS7
DS4
FY1112H CL-170Y
DS3 DS6
FY1112H
FY1112H
DS2
DS5
FY1112H FY1112H
3.56Vp-p
f = 9.83 MHz
64 SEG15
SEG15
63 SEG14
SEG14
62 SEG13
4.46Vp-p
SEG13
61 SEG12
SEG12
SEG11
60
SEG11
59 SEG10
SEG10 C14 R11
X1
58 SEG9
SEG9 15p CR-567 1M
57 SEG8
SEG8
56 SEG7
SEG7
55 SEG6
SEG6
C13
54 SEG5
SEG5 15p
53 SEG4
SEG4
52 SEG3
IC1 SEG3
51 SEG2
SEG2
50 SEG1
SEG1
49 SEG0
SEG0
48 COM16
COMS
47 COM15
COM15
46 COM14
COM14
45 COM13
COM13
44 COM12
COM12
43 COM11
COM11
42 COM10
LRES
COM10
41 COM9 LWR
COM9
40 COM8 LRD
COM8
LA0
39 COM7
COM7
R12
100k
0V
5.01V 5.00V
R7
10k
3 2 1
C10
R4 R8
1k 0.22 220k
Q1
2SC4081
R9
R6 R10
R5
C11
470k 220k
100k 100k
D1 0.01
4 5 MA111
IC3
S-80742SL
manuals search engine
6.20V LIGHT ON 0V
0V
7.98V LIGHT OFF 7.98V
R43 R42 R41
100k 100k 100k
P0 P1
C34 C35
47p 47p
S17 S16
Q8
DTA143ZU
DIM ON 7.90V
R34
DIM OFF 0V
220
Q7 Q9
DTA143ZU DTA143ZU
R30 R31 R32
1k 1k 390
DIM ON 0V
DIM OFF 4.97V
Q10
DTC114EU
DS10 DS13 DS16
LIGHT ON 4.97V
CL-170Y CL-170Y CL-170Y
LIGHT OFF 0V
W3 W4
DS15
OPF2
CL-170Y Q11
DTC114EU
DS11 DS14
DS8
CL-170Y CL-170Y CL-170Y
R46
1k
C16
R13
0.01 5.04V
100k
C15
0.001
D7
DA204U
1 48
PB1/AN1
P21/RXD
2 47
PB0/AN0 P20/SCK3
3 46 KYP4
AVSS P87
4 45 KYP3
TEST
P86/FTID
44
5 KYP2
X2
P85/FTIC
6 43 KYP1
X1 P84/FTIB
7 42
VSS P83/FTIA
8 IC2 41
OSC1
P82/FTOB
9 40 KYP0
HD6433640A33H
OSC2 P81/FTOA
10 39 KYDN
RES P80/FTCI
11 38 KYUP
P90/FVPP
P77
37
12 KYB
P91
P76/TMOV
13 36 KY0
P92 P75/TMCIV
14 35 KYA
P93 P74/TMRIV
15 34 KY9
P94
P73
16 33
IRQ0
VCC
C17
0.1
MEASUREMENT CONDITIDNS
OSCILLOSCOPE : 20 MHz
VOLTMETER : 1 MΩ/V
5.04V
+5V
R40 R39
100K 100k
KY1 KY2
P2 P3 P4
1
C36 C37 C38
C41
47p 47p S14 47p S13 C45
S15 S9 S5
47p 47p
KY4 KY5
4
C42 C46
47p S10 S6
47p
R44
100k
KYUP KY7 KY8
^ 7
C39
C43
C47
47p
S18 47p S11 S7
47p
R45
100k
KYDN KYA KY0
R38
100k
v
C48
C40 C44
OPF1 OPF0 47p 47p
S19 47p S12 S8
R47 R48
1k 1k
+8V
+5V
D
E D6
DA204U
D8
D9
DA204U DA204U
R25
1k
D5
DA204U
C
R24
1k
D2 R20
MA111
100k
R19
5.04V
100k
R18 C26
R16
100k
0.1
3.3k
R21 R23
Q2 3.3k
100k
IC4 DTA114EU
D4
TC7W04F
MA111
1 5
2 6
Q4
3 7
Q3
DTA114EU
4 8
DTC114EU
D3
Q5
MA111
DTC114EU
R22
100k
R17
100k
13.18V
5.04V
R49
22k IC5
AN8005M
+5V
O I
G
C18 C19 C20 C21 C22 C23
470p 10 1 0.1
0.1 470p
11 - 1
KY3
2 3
C49
S1
47p
KY6
5 6
C50
S2
47p
KY9
R35
100k
8 9
C51
47p S3
R37 KYB
R36
100k
100k
0 #
C52
47p S4
AF VR
R26
EVU-F2JFK4B14
C33
47p
POW SW
C32
47p
S20
J1
+8V
CLON
AFO
PTT
+0
MICE
Microphone
MIC
GND
HANG
C27 C29 C31
0.001 47p 0.001
C28 C30
47p 0.001
L1 B A
1µ
J2
AFO
GND
MIC
MICE
POSW to
MAIN
FRXD
unit
FTXD
J5
+8V
SPE
SP
SQL
VCC
R15
10k
C24 C25 W2 W1
470p 470p
FRONT UNIT