Keysight Technologies InfiniiVision 6000 X Series, Service Manual

Page: 78 / 130

78 6000 X-Series Oscilloscopes Service Guide
4
Troubleshooting
Figure 16 J105 connector pinout
VP2V5
VP5V
VP1V8
VM13V
VP3V3 VP3V3
VP13VF
GND
VP1V8
J105
16
13
14
17
4
8
19
15
9
6
11
20
12
3
18
1
2
5
10
7
VP2V5
VM6V5
VP5V
VP1V3 VP1V3
Power Cable Header
Table 21 Power supplies to acquisition board (from power board J105)
Supply Test Point Expected Value If Good If Bad
VP13VF J105, pin 20 +12.9V to +13V,
>+12.8 V when loaded
by acquisition board,
see also “VP13VF" on
page 79
Supply is good. Replace the power board.
VP5V J105, pin 8
J105, pin 18
+5.051 V ±3% Supply is good. Replace the power board.
VP3V3 J105, pin 3
J105, pin 13
+3.353 V ±3% Supply is good. Replace the power board.
VP2V5 J105, pin 5
J105, pin 15
+2.508 V ±1.6% Supply is good. Replace the power board.
VP1V8 J105, pin 1
J105, pin 11
+1.825 V ±2.6% Supply is good. Replace the power board.
VP1V3 J105, pin 2
J105, pin 12
+1.3 V ±3% Supply is good. Replace the power board.
VM13V J105, pin 10 -13 V ±2% Supply is good. Replace the power board.
VM6V5 J105, pin 6 -6.5 V ±2.2% Supply is good. Replace the power board.