Tektronix P6248, Service Manual

Page: 31 / 58

P6248 1.7 GHz Differential Probe Service Manual
19
Adjustment Procedures
These procedures are for use by qualified service personnel only.
Prepare the probe for adjustment as follows:
1. Remove the four screws attaching the top cover from the control box.
2. Remove the top cover.
3. Attach the probe to the 1103 TEKPROBE Power Supply.
4.
If necessary, set the line selector to the correct voltage.
5. Turn on the 1103 power supply.
6. Set the 1103 power supply offset to off (button not illuminated).
7. Allow at least 20 minutes for the equipment to warm up.
NOTE
. Ambient temperature must be within 20
_
C to 30
_
C (68
_
F to 86
_
F)
when you adjust the probe.
Equipment Required
In addition to the equipment required to perform the performance verification,
the adjustment procedures require the equipment listed in Table 7.
Table 7: Test equipment
Description Minimum requirements Example product
Digitizing oscilloscope
(Required for adjustment
procedure only)
Bandwidth
≥
100 MHz, average
acquisition mode, vertical
sensitivity 2 mV/div
Tektronix TDS 300 series
Function generator
(Square and sine wave
output)
Output level adjustable to
10 V
pk-pk
, Separate Trigger or Sync
output
Tektronix CFG 280
50
Ω
terminator
(needed only if oscilloscope
does not support 50
Ω
termination)
50
Ω ±
1
Ω
011-0049-01