SIGLENT TECHNOLOGIES SDS5000X Series, Руководство по обслуживанию

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SDS5000XSeries Digital Oscilloscope Service Manual
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no sign that the acquisition board is powering up, go toTo Check the
Power Supply Modulesection to check the stand-by power and the
main power.

If the power or the signal under test is abnormal, replace the
acquisition board.
8.5.2.2 Check the Acquisition System power supply
Check the Acquisition System power supplies. Find and measure those
test points using a multi-meter.
12.6V
1
V
0
_
A
1
V
0
_
B
6
V
5
E
1
2
V
8
V
1
V
8
5
V
1
V
5
A
1
V
5
B
1
V
2
2
V
5
3
V
3
5
V
5
FA
N
V
TT
/V
re
f_
d
d
r_
A
V
TT
/V
re
f_
d
d
r_
B
V
TT
/V
re
f_
d
d
r_
C
V
TT
/V
re
f_
d
d
r_
D
M
G
TA
V
C
C
V
C
C
1
6
V
A
V
C
C
-5
V
A
V
C
C
5
V
A
V
C
C
5
V
_
C
H
A
V
C
C
3
V
3
V
C
C
3
V
3
_
C
H
A
V
C
C
1
5
V
Figure 28
Acquisition Board Power Supply Distribution