1
2
3
4
5
6
7
8
A
B
C
D
8
7
6
5
4
3
2
1
D
C
B
A
Title
Number
Revision
Size
A2
Date:
7-Sep-2010
Sheet of
File:
C:\Client98\Files\fma300cont4.sch
Drawn By:
PA0
40
PA1
39
PA2
38
PA3
37
PA4
36
PA5
35
PA6
34
PA7
33
XTAL2
12
XTAL1
13
RESET
9
AREF
32
PB0
1
PB1
2
PB2
3
PB3
4
PB4
5
PB5
6
PB6
7
PB7
8
PC0
22
PC1
23
PC2
24
PC3
25
PC4
26
PC5
27
PC6
28
PC7
29
PD0
14
PD1
15
PD2
16
PD3
17
PD4
18
PD5
19
PD6
20
PD7
21
+
5
1
0
A
+
5
3
0
G
N
D
1
1
A
G
N
D
3
1
U1
ATMEGA16(40)
X1
7.3728 MHz
C1
22p
C2
22p
VCC
VCC
C3
100n
C4
100n
FWD VOLTS
REV VOLTS
RXD
TXD
HIGH SWR
R1
10R
HIGH O/P
DA
2
DY
7
V
C
C
+
8
V
C
C
-
1
G
N
D
4
RA
5
RESP
6
RY
3
U2
SN75155
+10V
-9V
C5
100n
C6
100n
Z1
DSS9
Z2
DSS9
Z3
DSS9
RXD
TXD
VCC
9
8
7
6
5
4
3
2
1
R5
10K
RESET
RESET
1
2
3
J1
RS232
C14
10uF
C15
10uF
C16
10uF
-9V
+10V
C23
100nF
VCC
C17
1uF
1
2
3
4
5
6
7
8
9
10
J2
SPI
VCC
V
P
O
S
1
IREF
2
RF IN
3
PWDN
4
C
O
M
M
5
FLTR
6
VRMS
7
SREF
8
U7
AD8361
C10
1nF
J6
FWD
C28
1nF
R17
62R
Z6
DSS9
3
2
1
4
1
1
U9A
TL074
5
6
7
U9B
TL074
VR1
10K
R22
4K7
-9V
+10V
R27
100K
R28
100K
C24
100nF
C11
10nF
VCC
VR3
10K
V
P
O
S
1
IREF
2
RF IN
3
PWDN
4
C
O
M
M
5
FLTR
6
VRMS
7
SREF
8
U8
AD8361
C12
1nF
J7
REV
C29
1nF
R18
62R
Z7
DSS9
12
13
14
U9D
TL074
10
9
8
U9C
TL074
VR4
10K
R24
4K7
R29
100K
R30
100K
C25
100nF
C13
10nF
VCC
VR6
10K
F
W
D
V
O
L
T
S
R
E
V
V
O
L
T
S
2
3
7
6
5
1
8
4
U10
LM311
2
3
7
6
5
1
8
4
U11
LM311
-9V
-9V
+10V
+10V
R32
4K7
R10
10K
+10V
HIGH SWR
HIGH O/P
HIGH O/P
HIGH SWR
1
2
3
4
5
6
J8
Amp A
Z8
DSS9
Z9
DSS9
Z10
DSS9
Z11
DSS9
Z12
DSS9
VCC
TEMP
VR7
10K
IP VOLTS
R33
1K
VR11
47K
D2
12V
Q2
2N5401
R25
4K7
R34
1K
R11
1K
C18
10uF
C26
100nF
+V
R13
10K
AMP CURR
VR10
10K
R31
100K
+V
AMP VOLTS
R2
10R
VCC
VCC
R3
10R
Z19
DSS9
Z20
DSS9
1
2
J11
5V
VR14
10K
D7 1N4148
D8 1N4148
R38
1K
D9 1N4148
U17
4N23
-9V
VCC
R40
220R
BIAS CUT
Z23
DSS9
R41 39R
R42
39R
R45
13R
R43
39R
R44
39R
R46
13R
-18dB
-18dB
C21
10nF
C22
10nF
TEST
1
CAP+
2
GND
3
CAP-
4
VOUT
5
LV
6
OSC
7
V+
8
U15
7660
C31
10uF
C32
10uF
-9V
VCC
C33
4.7pF
C34
4.7pF
C35
15-60pF
C36
15-60pF
3
2
1
8
4
U12A
LMC6462
D3
1N4148
C19
100pF
C20
33pF
C37
33pF
FMA300 CONTROL BOARD
+V
A
7
B
6
C
4
D
2
E
1
F
9
G
1
0
D
P
5
3
8
U3
HDSP-5501
A
7
B
6
C
4
D
2
E
1
F
9
G
1
0
D
P
5
3
8
U4
HDSP-5501
A
7
B
6
C
4
D
2
E
1
F
9
G
1
0
D
P
5
3
8
U5
HDSP-5501
A
7
B
6
C
4
D
2
E
1
F
9
G
1
0
D
P
5
3
8
U6
HDSP-5501
R7
68R
R9
68R
R12
68R
R14
68R
R15
68R
R16
68R
R19
68R
R20
68R
LED0
LED1
LED2
LED3
LED4
LED5
LED6
LED7
L
E
D
0
L
E
D
1
L
E
D
2
L
E
D
3
L
E
D
4
L
E
D
5
L
E
D
6
L
E
D
7
L
E
D
0
L
E
D
1
L
E
D
2
L
E
D
3
L
E
D
4
L
E
D
5
L
E
D
6
L
E
D
7
L
E
D
0
L
E
D
1
L
E
D
2
L
E
D
3
L
E
D
4
L
E
D
5
L
E
D
6
L
E
D
7
L
E
D
0
L
E
D
1
L
E
D
2
L
E
D
3
L
E
D
4
L
E
D
5
L
E
D
6
L
E
D
7
Q3
BC557
Q5
BC557
Q6
BC557
Q7
BC557
R49
1K
R50
1K
R51
1K
R52
1K
VCC
VCC
VCC
VCC
DIGIT1
DIGIT2
DIGIT3
DIGIT4
PARAMETER
PB
IP VOLTS
TEMP
PSU TEMP
AMP VOLTS
AMP CURR
D1
D4
D5
D6
D10
D11
D13
Q1
BC557
VCC
R4
1K
PARAMETER
L
E
D
0
L
E
D
1
L
E
D
2
L
E
D
3
L
E
D
4
L
E
D
5
L
E
D
6
D15
D16
D17
D18
R23
270R
R26
270R
R35
270R
R36
270R
VCC
O/P LED
SWR LED
I/P LED
TEMP LED
O/P LED
SWR LED
I/P lED
TEMP LED
R37
270R
R39
1K2
R48
470R
D19
+5V
D20
+15V
D21
-9V
VCC
+10V
-9V
PB
S1
SELECT PARAMETER
D
IG
IT
1
D
IG
IT
2
D
IG
IT
3
D
IG
IT
4
R6
1K
3
1
2
U13
LM35
VCC
P
S
U
T
E
M
P
BIAS CUT
TEST
1
CAP+
2
GND
3
CAP-
4
VOUT
5
LV
6
OSC
7
V+
8
U14
LT1054
C7
10uF
C8
10uF
D12
1N4148
D14
1N4148
VCC
+10V
+10V
Z4
DSS9
VCC