Ut-101 Dtmf Unit - Icom IC-2000 Service Manual

8-2 UT-101
DTMF
UNIT
LCT335M
INi
VDO
!
IM-
ST/QT
GS EST
VR£F STD
e/H Q4
PD Q3
0SC1
Q2
0SC2
Q1
VS3 TOE
280nS
3,
9V
1
1
0,
4V
12
1_3_
U
Jr
09
0
.
1
15
16
17
11.
10
20
C2
LC7366NW
C4 03C0
WUTE OSC1
MC NC
R4
VS3
C3
R2 C2
R1 Cl
HC
NC,
CD XMIT
toke VDD
IC3
Bl4t)94BCFV
1
1
1
12
13
14
15
1
6
QS VSS
S
04
QS 03
07 02
06
01
Q5
CLK
OENA DATA
VDD STAB
rrr
to
LOGfC
UN[T
J2
n
to
LOGIC UNIT
{J2}