C27
B5
C2
C28
B4
E2
C29
D5
D2
C30
D4
E2
C33
E4
E3
C34
E5
C3
C35
F5
C4
C36
F4
D4
C37
D5
C3
C38
E5
D3
C39
D5
E3
C40
E5
E3
C41
F5
D3
C42
F5
D3
C43
F5
C3
C44
F5
D3
C45
E5
E2
C46
E5
D2
C47
D5
D3
C48
D4
E3
C49
G5
D4
C50
G5
D4
C52
G5
D4
C53
B2
F2
C54
B1
G2
C55
D2
F2
C56
D1
G2
C59
E1
G3
C60
E2
F3
C61
F2
E4
C62
F1
G4
C63
D3
F3
C64
E3
F3
C65
D3
G3
C66
E3
G3
C67
F3
F3
C68
F3
F3
C69
F3
E3
C70
F3
G3
C71
E3
G2
C72
E3
F2
C73
D2
F3
C74
D1
G3
C75
G3
F4
C76
G3
F4
C77
G3
F4
C190
F4
E4
C193
F2
G4
C205
B4
E2
C206
B5
C2
C207
C4
D3
C208
B1
G2
C209
B2
E2
C228
G4
E5
C229
G5
D4
C230
G1
G5
C231
G2
G4
C236
C2
G3
C240
G5
D4
C241
G3
F4
C244
F2
F4
C245
F2
F4
C252
F4
D4
C253
F5
C4
CR10
C4
D3
CR11
C5
C3
CR14
E4
E4
CR15
E5
C4
CR16
B4
D2
CR17
H5
C4
CR18
H4
C5
CR19
C1
G3
CR20
C2
E3
CR23
E1
G4
CR24
E2
E4
CR25
B2
F2
CR26
H2
F4
CR27
H1
F5
CR54
F4
E4
CR55
F2
G4
CR70
E5
D4
CR71
E2
G4
CR72
E2
F4
CR73
E4
E4
J4
A4
C1
J5
A4
E1
J6
A4
D1
J7
A2
F1
J8
A1
G1
J9
A2
F1
K2
B4
E1
K3
B1
G1
Q8
C4
E2
Q9
C5
D2
Q10
E5
D3
Q11
E4
E3
Q12
D4
D3
Q13
D5
C3
Q14
C1
G2
Q15
C2
F2
Q16
E2
F3
Q17
E1
G3
Q18
D1
F3
Q19
D2
E3
R52
C4
D2
R53
C4
E2
R54
C5
C2
R55
C5
C2
R56
C4
E2
R57
C4
E2
R58
C4
D2
R59
E4
E3
R60
D4
E3
R61
E4
E3
R62
D4
D3
R63
E4
E3
R64
E5
C3
R65
D4
C3
R66
D5
C3
R67
E4
D3
R68
E5
D3
R69
E5
C4
R70
E4
E4
R71
F5
C4
R72
F4
E4
R73
B5
C2
R74
B4
E2
R75
C4
D2
R76
D5
C3
R77
D5
C3
R78
E4
E3
R79
E5
D3
R80
D4
E3
R81
D4
E3
R82
C4
C3
R83
D4
D3
R84
F5
C4
R88
F4
D4
R90
G3
D5
R91
G3
D5
R92
G4
D4
R93
G4
D4
R94
F4
E4
R95
G5
D4
R96
G4
E4
R97
G4
D5
R98
G4
E4
R99
C2
F2
R100
C1
G2
R101
C2
F2
R102
C2
F2
R103
C1
G2
R104
C1
G2
R105
C2
F2
R106
E1
G3
R107
D1
G3
R108
E1
G3
R109
D1
G3
R110
E1
G3
R111
E2
F3
R112
D2
F3
R113
D2
E3
R114
E2
F3
R115
E2
F3
R116
E2
F4
R117
E1
G4
R118
F2
F4
R119
F1
G4
R120
B2
F2
R121
B1
G2
R122
C1
F2
R123
D2
F3
R124
D2
F3
R125
E1
G3
R126
E2
F3
R127
D1
G3
R128
D1
G3
R129
C2
E3
R130
D2
G3
R131
F2
F4
R135
F2
F4
R137
G1
G5
R138
G1
F5
R139
G2
F4
R140
G2
G4
R141
F2
G4
R142
G2
G4
R143
G2
G4
R144
G1
G5
R145
G2
G4
R303
C4
E2
R304
C4
D2
R305
C1
G2
R306
C2
F2
TP2
E4
D4
TP3
E2
F4
U3A
F4
D4
U3B
F5
D4
U4A
G4
D4
U4B
G5
D4
U5A
F1
F4
U5B
F2
F4
U6A
G1
G4
U6B
G2
G4
Main Board Schematic Diagram <2>
Component Locator Chart
ECO 422
A2 Main Board. Partial A2 also shown on Schematics 1, 3, 4, and 5.
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: ......