Acom 2100 Schematics page 13

+5V
+5V
R93
100k 1%
2.5V VG1
3
+
2
-
R94 C86
100k 1% 100n
A B C D E
JP1
MTA100-6
WATTMETER
f wdi
1
rf li
2
*ORC
3
agnd (p1B1)
4
*OUTR
5
+48V
6
JP2
MTA100-8
TUBE DECK
inpi
1
aav i
2
tempi
3
agnd
4
(p1C3)
*ATN
5
*INR
6
+24VI
7
FHI
8
JP3
MTA100-5
MAINS-MEAS.
g1ci
1
g2ci
2
ipmi
(p2C2)
3
hv mi
4
agnd
5
D24 1
BAS70-04
2.3/2.8V
RX/TX
C87 R95
100n 33.2k 1%
U19A R96
LM358 475 1%
1
NEG
VG
C88
100n
F GG
n/c
JP4
MTA100-10
MAINS-CONTROL
JP5
MTA100-10
MAINS-LV
JP6
MTA100-4
ON/OFF
1
2
3
4
R97 C89 R101
475 1% 220n 475 1%
RC
R98
221k 1%
U19B R102
5 LM358 4.22k 1%
+
KIN
7
6
-
R99 R100
1k 1% 4.22k 1%
NEG1
*KEY
RX/TX 5.0/0.4V
2 3
D25
BAS70-04
C D
A n/c G S
BZX84 BSS138 BAS70-04
Top View Top View Top View
CONTROL 8/9
*G1VL
1
*ENAB
2
*INH
3
*PWRON
4
*EG2ON
5
*STST (p3C5)
6
*EXTFAN
7
GND
8
*KEY IN
9
*KEY OUT
10
+48V
1
+24VI
2
+24VI
3
GND
4
GND
5
+24VPI (p2B2)
6
GND
7
+5VI
8
+5VI
9
GND
10
*ONBTN
GND
LEDON (p6C5)
LEDOFF
CONTROL 9/9
+5V
R104
475 1%
*KIN
Q10
BSS138
KINGT 2
R103
10k 1%
D26
BZX84C12
GND
(SP4)
CA
A C
JP7
DIP14
VFD
GND
1
n/c
3
RSLCD
5
AD0
7
AD2
9
AD4
11
AD6
13
JP8
MTA100-8
KBDLED
JP9
MTA100-8
FAN
JP10
MTA100-6
ANT-SEL
(SP1)
+5V
(p2A4)
(SP2)
5/0V
*KIN
RX/TX
(p3c2)
(SP3)
12/0V
*KEY
RX/TX
(p3c3)
(SP5-n/c)
(SP6-n/c)
+5V
2
A0
4
WLCDE
6
AD1
(p6D5)
8
AD3
10
AD5
12
AD7
14
*OPR
1
*PREV
2
*NEXT
3
GND
4
LEDOPR (p6B5)
5
LEDATT
6
LTXC
7
LTXA
8
+24VPI
1
GND
2
*FAN
3
GND
4
*LAIR (p4B3)
5
*K1
6
*K2
7
+24VPI
8
+5VI
1
*LEDA1
2
*LEDA2
3
*LEDA3 (p4A4)
4
*ANTBTN
5
GND
6