User’s and Service Guide U3047-90002
39
U3047AE04
Control Lines
Internal Voltage Supply Configuration
The output voltage of pin 12 can be adjusted from +2 to +5 V. Perform the following
procedure to set the voltage:
1. Turn On the Test Set.
2. Measure the voltage between pin 12 and 15 using a multimeter.
3. Rotate the voltage adjustment trimmer on the rear panel until the multimeter indicates the
selected voltage.
illustrates an example of the connection between the DUT and the Test Set using
the
internal dc power supply. Connect pin 12 to pin 13 and pin 14 to pin 15 to provide the ground
path. Connect the control lines to the external DUT.
You may only connect pin 12–13, and pin 14–15, damage may result if any
other paths are short-circuited.
Figure 32 Internal DC Power Configuration (rear panel view)
9
8
1
15
14
13
12
TO DUT (Only required Lines)
GND
12
13
14
15
1
2
8
2 to 5 Vdc
TEST SET
Line 1
Line 2
Line 8
GND
(Rear Panel View)
