hameg hm404-2 oscilloscope sch
TRANSCRIPT
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1Subject to change without notice
Table of contents
Circuit Diagrams
HM404-2
St:
0109
98/g
oRR
Typical board allocation ........................................................ 3
Block Diagram HM404 ........................................................... 4
AT - BoardDiagram .................................................................................... 6Diagram .................................................................................... 7Top side..................................................................................... 9Rear side ................................................................................. 13
MB - BoardDiagram .................................................................................. 16Diagram .................................................................................. 17Diagram .................................................................................. 18Diagram .................................................................................. 19Diagram .................................................................................. 20Top side................................................................................... 21Rear side ................................................................................. 25
YF - BoardDiagram .................................................................................. 28Top and rear side .................................................................... 29
FC - BoardDiagram .................................................................................. 32Diagram .................................................................................. 33Top side................................................................................... 35Rear side ................................................................................. 39
Readout - BoardDiagram .................................................................................. 40Diagram .................................................................................. 41Top side................................................................................... 43Rear side ................................................................................. 47
CRT - BoardDiagram .................................................................................. 50Top and rear side .................................................................... 51
PS - BoardDiagram .................................................................................. 54Top side................................................................................... 55Rear side ................................................................................. 59
IF (RS 232) - BoardDiagram .................................................................................. 62Top and rear side .................................................................... 63
PI - BoardDiagram & Top and rear side ................................................. 66
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2 Subject to change without notice
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3Subject to change without notice
Typical board allocation
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4S
ubject to change without notice
Blo
ck Diag
ram H
M404
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5S
ubject to change without notice
Blo
ck Diag
ram H
M404
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6S
ubject to change without notice
AT
- Bo
ard D
iagram
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7S
ubject to change without notice
AT
- Bo
ard D
iagram
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8 Subject to change without notice
AT - Board Top side
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9Subject to change without notice
AT - Board Rear side
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10S
ubject to change without notice
MB
- Bo
ard D
iagram
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11S
ubject to change without notice
MB
- Bo
ard D
iagram
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12S
ubject to change without notice
MB
- Bo
ard D
iagram
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13S
ubject to change without notice
MB
- Bo
ard D
iagram
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14S
ubject to change without notice
MB
- Bo
ard D
iagram
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15S
ubject to change without notice
MB
- Bo
ard To
p sid
e
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16S
ubject to change without notice
MB
- Bo
ard R
ear side
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17S
ubject to change without notice
YF - B
oard
Diag
ram
28
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18 Subject to change without notice
YF - Board Top and rear side
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19S
ubject to change without notice
FC - B
oard
Diag
ram
32
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20S
ubject to change without notice
33
FC - B
oard
Diag
ram
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21S
ubject to change without notice
FC - B
oard
Top
side
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22 Subject to change without notice
FC - Board Rear side
39
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23S
ubject to change without notice
Read
ou
t - Bo
ard D
iagram
40
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24S
ubject to change without notice
Read
ou
t - Bo
ard D
iagram
41
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25Subject to change without notice
Readout - Board Top side
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26 Subject to change without notice
Readout - Board Rear side
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27S
ubject to change without notice
CR
T - B
oard
Diag
ram
50
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28 Subject to change without notice
CRT - Board Top and rear side
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29S
ubject to change without notice
PS
- Bo
ard D
iagram
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30S
ubject to change without notice
PS
- Bo
ard To
p sid
e
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31Subject to change without notice
PS - Board Rear side
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32 Subject to change without notice
PI board - Diagram and Top side
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33S
ubject to change without notice
IF (RS
232) - Bo
ard D
iagram
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34 Subject to change without notice
IF (RS 232) - Board Top and rear side