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Table of contents
Typical board allocation ........................................................ 3
Block Diagram HM404 ........................................................... 4
AT - Board Circuit Diagrams
Diagram .................................................................................... 6
Diagram .................................................................................... 7
Top side ..................................................................................... 9 HM404-2
Rear side ................................................................................. 13
MB - Board
Diagram .................................................................................. 16
Diagram .................................................................................. 17
Diagram .................................................................................. 18
Diagram .................................................................................. 19
Diagram .................................................................................. 20
Top side ................................................................................... 21
Rear side ................................................................................. 25
YF - Board
Diagram .................................................................................. 28
Top and rear side .................................................................... 29
FC - Board
Diagram .................................................................................. 32
Diagram .................................................................................. 33
Top side ................................................................................... 35
Rear side ................................................................................. 39
Readout - Board
Diagram .................................................................................. 40
Diagram .................................................................................. 41
Top side ................................................................................... 43
Rear side ................................................................................. 47
CRT - Board
Diagram .................................................................................. 50
Top and rear side .................................................................... 51
PS - Board
Diagram .................................................................................. 54
Top side ................................................................................... 55
Rear side ................................................................................. 59
IF (RS 232) - Board
Diagram .................................................................................. 62
Top and rear side .................................................................... 63
PI - Board
Diagram & Top and rear side ................................................. 66
St:010998/goRR
Subject to change without notice 1
2 Subject to change without notice
Typical board allocation
Subject to change without notice 3
Block Diagram HM404
4 Subject to change without notice
Block Diagram HM404
Subject to change without notice 5
AT - Board Diagram
6 Subject to change without notice
AT - Board Diagram
Subject to change without notice 7
AT - Board Top side
8 Subject to change without notice
AT - Board Rear side
Subject to change without notice 9
MB - Board Diagram
10 Subject to change without notice
MB - Board Diagram
Subject to change without notice 11
MB - Board Diagram
12 Subject to change without notice
MB - Board Diagram
Subject to change without notice 13
MB - Board Diagram
14 Subject to change without notice
MB - Board Top side
Subject to change without notice 15
MB - Board Rear side
16 Subject to change without notice
YF - Board Diagram
Subject to change without notice
28 17
YF - Board Top and rear side
18 Subject to change without notice
FC - Board Diagram
Subject to change without notice
32 19
FC - Board Diagram
20 Subject to change without notice
33
FC - Board Top side
Subject to change without notice 21
FC - Board Rear side
22 Subject to change without notice
39
Readout - Board Diagram
Subject to change without notice
40 23
Readout - Board Diagram
24 Subject to change without notice
41
Readout - Board Top side
Subject to change without notice 25
Readout - Board Rear side
26 Subject to change without notice
CRT - Board Diagram
Subject to change without notice
50 27
CRT - Board Top and rear side
28 Subject to change without notice
PS - Board Diagram
Subject to change without notice 29
PS - Board Top side
30 Subject to change without notice
PS - Board Rear side
Subject to change without notice 31
PI board - Diagram and Top side
32 Subject to change without notice
IF (RS 232) - Board Diagram
Subject to change without notice 33
IF (RS 232) - Board Top and rear side
34 Subject to change without notice