+5VD
VOLTAGE COMPARATORS
NEGATIVE PEAK DETECTORS
INPUT BUFFERS
PRIMARY
5
75 OHM
MICROSTRIP
RF RELAY
J5
J6
15
16
9
10
14
11
8
12
13
5
6
1
4
7
2
3
K2
R74
1.50K
MICROSTRIP
75 OHM
C186
47UF
C28
.01UF
R75
37.4
R53
20.0K
R56
649
R303
37.4
+5V
-5V
+5V
-5V
CR10
C30
47UF
R80
432
R60
100K
R62
76.8
R81
432
R82
2.55K
Q12
Q8
R57
2.49K
-5V
+5V
+5V
-5V
C48
47UF
R61
13.3K
R78
1.00K
CR72
R59
2.32K
Q11
R63
200
C33
.1UF
R70
20.0K
CR14
+5V
-5V
R72
475K
C36
.1UF
R88
475K
R97
2.00K
3
2
1
8
4
U3A
LF412
(P_TEST5)
+5V
R98
2.00K
C198
.001UF
3
2
1
8
4
U4A
LM393
R90
1.00M
R91
24.3K
CR18
H3
1
(P_AND_C)
H2
1
(B_AND_C)
H2
1
+5VD
R96
2.00K
C199
.001UF
5
6
7
U4B
LM393
R93
1.00M
R92
24.3K
CR17
H3
1
-5V
VREF5
CR54
C164
.1UF
R71
475K
C35
.1UF
R84
475K
R95
2.00K
C228
.001UF
H2
1
5
6
7
U3B
LF412
R94
2M
+5V
+5V
C47
47UF
TP2
R67
13.3K
R79
1.00K
R64
2.32K
Q10
C34
.1UF
R69
20.0K
CR15
+5V
+5V
-5V
-5V
CR11
C29
47UF
R77
432
C209
.1UF
R83
5.00K
R65
100K
R66
76.8
Q13
R76
432
Q9
R58
2.49K
MICROSTRIP
75 OHM
ATTEN5
RELAY
C27
.01UF
C187
47UF
R52
37.4
R54
20.0K
R55
649
CR16
R304
37.4
H2
1
MICROSTRIP
75 OHM
RELAY
J4
R73
1.50K
BACKUP
OUTPUT
(RELAY_DRIVER)
BETWEEN RELAYS TO REDUCE CROSSTALK
B3
1
(RELAY_DRIVER)
-5V
+5V
-5V
C46
.01UF
-5V
+5V
+5V
-5V
-5V
+5V
-5V
CR71
R68
200
C44
.01UF
C43
.01UF
C37
.01UF
C39
.01UF
C45
.01UF
-5V
-5V
+5V
-5V
+5V
C42
10UF
C41
10UF
C221
10UF
C40
.01UF
C38
.01UF
C229
.001UF
(B_TEST5)
+5V
-5V
+5V
+5VD
C215
.1UF
C50
.1UF
C49
.1UF
C52
.1UF
+5V
+5VD
+5VD
C196
.001UF
3
2
1
8
4
U2A
LM393
R39
1.00M
R40
24.3K
CR9
R44
20.0K
(P_AND_C)
VOLTAGE COMPARATORS
+5V
R21
475K
C10
.1UF
R48
2.00K
3
2
1
8
4
U1A
LF412
+5V
+5V
CR5
C22
47UF
R10
13.3K
R27
1.00K
Q4
C7
.1UF
R19
20.0K
R8
2.32K
NEGATIVE PEAK DETECTORS
+5V
+5V
INPUT BUFFERS
C4
47UF
R29
432
Q5
R9
100K
R11
76.8
R30
432
Q1
R6
2.49K
+5V
R5
649
R2
20.0K
C2
.01UF
C184
47UF
+5V
C181
.01UF
C182
.01UF
RF RELAY
+5V
+5V
+5V
C183
.01UF
C180
.01UF
C179
.01UF
R23
1.50K
6
PRIMARY
BACKUP
OUTPUT
75 OHM
MICROSTRIP
MICROSTRIP
75 OHM
RELAY
15
16
9
10
14
11
8
12
13
5
6
1
4
7
2
3
K1
J3
J2
J1
MICROSTRIP
MICROSTRIP
75 OHM
75 OHM
ATTEN6
RELAY
R24
37.4
R1
37.4
(RELAY_DRIVER)
CR7
R301
37.4
R302
37.4
H2
1
-5V
+5V
+5V
-5V
-5V
-5V
CR1
R31
2.55K
C208
.1UF
R32
5.00K
C3
47UF
R26
432
R14
100K
R25
432
R7
2.49K
-5V
+5V
+5V
-5V
C21
47UF
CR69
R12
200
TP1
R13
2.32K
R16
13.3K
-5V
VREF6
-5V
R37
475K
CR53
C161
.1UF
C226
.001UF
H2
1
R45
2M
(P_TEST6)
+5VD
+5VD
R49
2.00K
R47
2.00K
R42
1.00M
R41
24.3K
R43
20.0K
H3
1
SEE ELECTRICAL PARTS LIST
FOR EARLIER VALUES AND
SERIAL NUMBER RANGES.
(B_TEST6)
+5V
+5V
+5VD
C197
.001UF
5
6
7
U2B
LM393
CR8
C214
.1UF
(B_AND_C)
C24
.1UF
C23
.1UF
C25
.1UF
H3
1
+5V
+5V
R20
475K
C9
.1UF
R33
475K
R46
2.00K
C12
.01UF
C14
.01UF
C16
10UF
C15
10UF
C225
10UF
C227
.001UF
5
6
7
U1B
LF412
-5V
+5V
+5V
+5V
-5V
R17
200
C8
.1UF
CR68
R28
1.00K
Q3
CR6
R18
20.0K
C20
.01UF
C13
.01UF
C11
.01UF
C18
.01UF
C17
.01UF
-5V
+5V
-5V
CR2
Q6
R15
76.8
C19
.01UF
Q2
75 OHM
NC
1
2
P1
ECB TEST STRIPS
MICROSTRIP
75 OHM
MICROSTRIP
1
2
P2
C1
.01UF
C185
47UF
R4
649
R3
20.0K
BOARD
TOP OF
PLATED
UNPLATED
MOUNTING HOLES
R22
1.50K
ECO 422 Changeover Unit
NC
BOTTOM OF
BOARD
-5V
-5V
-5V
-5V
-5V
CHANNELS 5 & 6, INPUTS AND COMPARATORS
-5V
PART OF A3 CONNECTOR BOARD
3
Summary of Contents for ECO 422
Page 4: ......
Page 6: ......
Page 14: ...General Safety Summary viii ECO 422 ...
Page 16: ...Service Safety Summary x ECO 422 ...
Page 17: ...Getting Started ...
Page 18: ......
Page 31: ...Operating Basics ...
Page 32: ......
Page 41: ...Operating Basics ECO 422 2 9 Figure 2 6 Setup for Adjusting R265 the User Level for SX 7 ...
Page 43: ...Specifications ...
Page 44: ......
Page 52: ......
Page 53: ...Theory of Operation ...
Page 54: ......
Page 62: ...Theory of Operation 4 8 ECO 422 ...
Page 63: ...Performance Verification ...
Page 64: ......
Page 84: ...Performance Verification 5 20 ECO 422 ...
Page 85: ...Adjustment Procedure ...
Page 86: ......
Page 88: ...Adjustment Procedure 6 2 ECO 422 ...
Page 89: ...Maintenance ...
Page 90: ......
Page 101: ...Options ...
Page 102: ......
Page 104: ...Options 8 2 ECO 422 ...
Page 105: ...Replaceable Electrical Parts ...
Page 106: ......
Page 140: ...Replaceable Electrical Parts 9 34 ECO 422 ...
Page 141: ...Diagrams Circuit Board Illustrations ...
Page 142: ......
Page 145: ......
Page 147: ... ECO 422 Changeover Unit FRONT PANEL 1 ...
Page 148: ...ECO 422 ...
Page 166: ...ECO 422 ...
Page 167: ...Replaceable Mechanical Parts ...
Page 168: ......
Page 174: ...Replaceable Mechanical Parts 11 6 ECO 422 ...
Page 175: ......
Page 176: ...ECO 422 A1 FIG 1 EXPLODED VIEW A2 A3 A4 ...
Page 177: ......