Icom UT-111 Instructions page 5

D UT-111 modification
Connect JP2 on the UT-111 by soldering as shown below.
D MAIN unit modification (IC-F400 series)
This modification is not required when the transceiver's
serial number is over 60000.
D MAIN unit modification part circuit diagram
Q14
2SJ377
EP3
VCC HV
EP3
GND
Q15
DTC114EU
W8
R112
330k VIN
6-9-16 Kamihigashi, Hirano-ku, Osaka 547-0002 Japan
U3
MODEL
IC-F310/F320
IC-F410/F420
Q8
2SD1664
IC2 TA7808F
8V
O I
G
D14
1SS302
Q9
Q12 2SB1132
DTC114EU
D31
DAN202U
Q10 2SD1664
Q13
XP6501
R58
4.7k
D15
1SS302
IC3 AN78L05M
CPU5 V
I O
G
C72 1
Q11
R110
DTC114EU
NTCCF20124AH (47k)
R107 100
4
2
- 1
3
+
11
IC6a
NJM2902M
CPU5V
VCC
5V
8V
JP1
U2
JP2
JP2 JUMPER
Jumper
Jumper
Jumper wire
Jumper wire
R8V
T8V 5V
FI2 CFWM450E
O I
FI3 CFWM450G
D13 D12
DAN202U DAN202U
I O
C64
0.1
W5 W4
R46
R53 15k
100k
C62
270p
C66 0.01
Q7
DTA144EU
Jumper wire R45 330k
C131 470p
R104 22k C130 C129
B
0.047 0.047
6
R102
-
7
5 1
+
AFREF
IC7b
NJM2904M
Grounding
Pattern cut
X1
CDBCA450CX24
IC1
R40
TA31136FN
2.2k
1 16
OSCIN MIXIN
2 15
OSCOUT GND C51
3 14
100p
MIXOUT N-REC
4 13
Q4
VCC N-DET
2SC4215
5 12
IFIN RSSI
C52 100p
6 11
DEC IFOUT
7 10
FILOUT QUAD
8 9
FILIN AFOUT
C59
Q5
0.001
R44 820
2SC4081
C60 0.01
AFHPF
Q22
C307 4.7
2SC4081
Q42
DTC144EU
R270 1M
R99
R94 1.5k
2.2k
C128
10
0.047 12
+ 8
+ 14
9 13
-
-
IC6c C127 C126
IC6d
0.047 0.047
NJM2902M
NJM2902M
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A-8337Ι-1EX Printed in Japan
© 1999 Icom Inc.