Tektronix MSO44 User Manual

2. Remove the cable ties and main fan assembly from the rear chassis.
3. T
o remove the fan from the bracket, carefully pull the fan from each corner of the bracket to disconnect the elastic fan attachments .
4. To reinstall, reverse the steps. Install the fan on the bracket in the correct orientation for the fan power cable (see photo). Use a needle
nose plier to reinstall the fan elastic attachments on each corner. Tighten the T-10 Torx screws to 0.65 N·m when reinstalling.
Remove the main board
The following procedure describes the removal and replacement of the main board.
Prerequisite:
• To prevent electrostatic damage to components whenever you work on the instrument, wear properly-grounded electrostatic prevention
wrist and foot straps, and work in a tested antistatic environment on an antistatic mat.
• Remove the front chassis assembly.
Maintenance
4 Series MSO (MSO44, MSO46) Service 27

Tektronix MSO44 Specifications

General

Bandwidth	200 MHz, 350 MHz, 500 MHz, 1 GHz
Analog Channels	4
Operating Temperature	0 °C to +50 °C
Sample Rate	6.25 GS/s
Record Length	62.5 Mpoints
Input Impedance	1 MΩ ±1%, 50 Ω ±1%
Vertical Resolution	12 bits
Waveform Capture Rate	Up to 500, 000 wfm/s
Maximum Input Voltage	5 VRMS (50 Ω)
Probe Interface	TekVPI
Digital Channels	16 (optional)