22
10
35
23
15
+5VD
3
J22
ATTEN2
VREF5
VREF6
VREF11
VREF9
(B_TEST11)
+5VD
REMOTE
1
39
40
NC
+5VD
6
7
PLCC44
TOP VIEW
R329
10.0K
4
5
6
U17B
74AC08
+5VD
1
2
3
U17A
74AC08
(PFAULT)
(P_AND)
(P_AND_C)
R327
20.0K
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
J18
(B_AND)
(B_AND_C)
ATTEN4
ATTEN5
ATTEN6
(P_AND_C)
(B_AND_C)
R328
20.0K
ATTEN4
ATTEN5
ATTEN6
G4
G5
G5
G5
G5
G4
G3
G3
5
H2
1
H2
2
H4
3
H1
1
H1
2
H3
3
+5VD
12
13
11
U17D
74AC08
+5VD
(PFAULT)
(BFAULT)
4
Y1
8.0MHZ
(BFAULT)
NC
17
18
9
10
8
U17C
74AC08
AUTO
(R_RESET)
QE1/IN
44
QE2/IN
2
GCLK/IN
43
GLR/IN
1
IO0
4
IO1
5
IO2
6
IO3
7
IO4
8
IO5
9
IO6
11
IO7
12
IO8
13
IO9
14
IO10
16
IO11
17
IO12
18
IO13
19
IO14
20
IO15
21
IO16
24
IO17
25
IO18
26
IO19
27
IO20
28
IO21
29
IO22
31
IO23
32
IO24
33
IO25
34
IO26
36
IO27
37
IO28
38
IO29
39
IO30
40
IO31
41
GND
42
GND
30
GND
GND
VCC
VCC
VCC
VCC
3
U16
EPM7032
CONTROLLER
STATE_RELAY
28
29
U16
MODE
+5VD
R316
10.0K
F1
5
(R_AUTO)
(R_SOURCE)
(R_RESET)
A1
2
Y1
18
A2
4
Y2
16
A3
6
Y3
14
A4
8
Y4
12
G
1
U18A
74ACT244
R294
10.0K
C254
.01UF
+5VD
+5VD
+5VD
+5VD
R252
1.00K
CR52
CR51
R315
10.0K
C215
1UF
C216
1UF
CR50
R314
10.0K
CR49
R251
1.00K
REMOTE
1
2
3
4
5
6
7
8
9
10
J17
1
6
2
7
3
8
4
9
5
1
2
3
4
5
6
7
8
9
10
+5VD
+5VD
R250
221
R311
1.00K
CR81
CR80
C217
1UF
R313
10.0K
B_LED
P_LED
+5VD
+5VD
+5VD
A1
11
Y1
9
A2
13
Y2
7
A3
15
Y3
5
A4
17
Y4
3
G
19
U18B
74ACT244
R318
10.0K
R295
10.0K
C142
.1UF
(P_O)
(B_O)
+5VD
(TIMER)
R242
82.5K
R253
750K
C143
.47UF
R317
10.0K
TIMER
(R_SOURCE)
(R_AUTO)
(P_FAULT_O)
(B_SELECT)
(B_FAULT_O)
(P_SELECT)
KEY_VALID
SYNC_SOURCE
ENABLE
RESET
(AUTO_O)
(OFF_O)
(TIMER)
MODE
(P_O)
(B_O)
RESET
2
3
1
CLOCK
RST
2
VCC
3
GND
1
U30
DS1233
3
1
2
4
5
S12
VREF1
VREF2
VREF3
VREF4
VREF5
VREF6
VREF1
VREF2
VREF3
VREF4
(P_TEST1)
(P_TEST2)
(P_TEST3)
(P_TEST4)
(P_TEST5)
(P_TEST6)
(B_TEST1)
(B_TEST2)
(B_TEST3)
(B_TEST4)
(B_TEST5)
(B_TEST6)
ATTEN1
ATTEN3
+5VD
ATTEN1
ATTEN2
ATTEN3
G2
G3
G3
G2
5
CONNECTOR
J18
CONNECTS
TO J19
A3
BOARD
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
J24
(P_TEST8)
(P_TEST9)
(P_TEST10)
(B_TEST9)
(B_TEST10)
RELAY_DRIVER
(P_TEST9)
(P_TEST10)
(P_TEST11)
(B_TEST9)
(B_TEST10)
(P_TEST11)
(B_TEST11)
+15V
R336
22
-5V
+5V
C214
.01UF
H4
H5
H2
H2
2
H3
H4
3
+5VD
+5VD
(ALARM)
(ENABLE_O)
(LOCK_O)
(TIMER_DIS)
+5VD
C136
.1UF
C141
.1UF
C159
.1UF
+5VD
+5VD
+5VD
DIS
7
THR
6
CV
5
TRIG
2
RST
4
VCC
8
GND
1
OUT 3
U13
7555
R300
10.0K
C135
.1UF
CR46
(ALARM)
+5VD
+5VD
R244
787
R246
10.0K
Q32
R245
150
+5VD
R312
20.0
R240
22
CR47
R249
221
R247
100K
CR48
VR1
Q33
R248
2.21K
1
2
5
4
6
U15
4N26
B3
1
B3
2
B4
3
(RELAY_DRIVER_B)
B3
1
B3
2
B4
3
STATE_RELAY
CR83
(P_SELECT)
R51
6.49K
R50
10.0K
Q7
RELAY_DRIVER
TP6
H4
H5
H2
H2
1
(P_TEST5)
(P_TEST6)
(P_TEST7)
(B_TEST5)
(B_TEST6)
(B_TEST7)
(B_TEST8)
(P_TEST1)
(P_TEST2)
(P_TEST3)
(P_TEST4)
(B_TEST1)
(B_TEST2)
(B_TEST3)
(B_TEST4)
RELAY_DRIVER
(P_TEST7)
(P_TEST8)
(B_TEST7)
(B_TEST8)
VREF10
VREF10
VREF11
RELAY_DRIVER
H5
H4
H3
H3
H2
5
FOR
TEST
ONLY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J23
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
J16
CONNECTS
J16
TEST3
(ENABLE)
(LOCK)
(P_FAULT)
(B_FAULT)
(AUTO)
VREF1
VREF2
VREF3
VREF4
VREF5
VREF6
+5VD
VREF7
VREF8
+5VD
R337
10.0K
VREF7
VREF8
VREF9
+5VD
+5VD
+5VD
+5VD
+5VD
R338
10.0K
R339
10.0K
C139
.1UF
C140
.1UF
C144
10UF
C145
10UF
KEYBOARD ENCODER
+5VD
+5VD
+5VD
C138
.1UF
C137
.1UF
+5VD
C255
.1UF
R320
332
R319
332
FRONT PANEL
LED DRIVER
(B_SELECT)
Q34
R344
10.0K
R345
6.49K
(LOCK)
(ENABLE)
(RELAY_DRIVER_P)
RELAY
+5VD
+5VD
CR82
CR85
CR86
CR87
CR88
CR84
+5VD
1
2
16
15
11
4
9
13
8
6
K6
NI
1
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
X1
X2
X3
Y1
Y2
Y3
(ENABLE)
(LOCK)
(P_FAULT)
(B_FAULT)
(AUTO)
(OFF)
(PRIMARY)
(BACKUP)
+5VD
POWER OFF STATE RELAY
(P_FAULT)
(B_FAULT)
(AUTO)
(OFF)
(PRIMARY)
(BACKUP)
NOT INSTALLED
AND SERIAL NUMBER RANGES.
SEE PARTS LIST FOR EARLIER VALUES
NOTE:
+5VD
R346
10.0K
NOT USED IN STANDARD INSTRUMENT
(P_FAULT_O)
(B_FAULT_O)
(ENABLE_O)
(LOCK_O)
(AUTO_O)
(OFF_O)
+5VD
R293
10.0K
1A1
2
1Y1 18
1A2
4
1Y2 16
1A3
6
1Y3 14
1A4
8
1Y4 12
2A1
11
2Y1 9
2A2
13
2Y2 7
2A3
15
2Y3 5
2A4
17
2Y4 3
1G
1
2G
19
U12
74ACT244
C134
.1UF
R326
332
R325
332
R324
332
R323
332
R322
332
R321
332
(P_O)
(B_O)
AUTO
SYNC_SOURCE
ENABLE
RESET
KEY_VALID
C131
.1UF
+5VD
Y1
1
Y2
2
Y3
3
Y4
4
Y5
5
X1
12
X2
11
X3
9
X4
8
OE
14
KBM
7
OSC
6
A
19
B
18
C
17
D
16
E
15
DA
13
U11
74C923
NC
NC
NC
C133
.1UF
R292
10.0K
X1
X2
X3
Y1
Y2
Y3
C223
.001UF
C222
.001UF
C225
.47UF
C132
.47UF
X1
X2
X3
Y1
Y2
Y3
(OFF)
(PRIMARY)
(BACKUP)
C224
.001UF
A1
BOARD
TO J1
FRONT
PANEL
1
ECO 422 Changeover Unit
PART OF A2 MAIN BOARD
CONTROL AND REMOTE
4
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: ......