AMETEK XFR 2800 Watt Series - Manual (Page 81)

Calibration Setup
TM-F2OP-C1XN-01 5-3
Accessing Calibration Potentiometers
You will need to remove the power supply’s cover to access the
programming and readback calibration potentiometers which are located
on the A2 PCB. See Figure 5-1 to locate the potentiometers.
Removing Option Card
If there is a GPIB or RS-232 option card (PCB) installed inside the power
supply, you will have to remove it to access the calibration
potentiometers.
Tool Required: Phillips #2 screwdriver
1. Turn OFF the power supply. Disconnect AC Power. Remove the
cover.
2. Remove 4 screws from their standoffs inside the power supply to
release the option card.
3. Remove 2 screws at the rear panel to release the option card’s sub-
plate.
4. Unplug the ribbon cable connectors from the option card. Lift out
card.
5. Remove the four screws holding the option card support plate and
remove the plate.
WARNING: Shock hazard
Disconnect AC power from the unit before removing the cover. Even when the
front panel power switch is in the OFF position, live line voltages are exposed
when the cover is removed. Repairs and adjustments must be made by
experienced service technicians only.
WARNING: Shock hazard
Use a non-conducting, straight-blade screwdriver to adjust the trim pots.
CAUTION
Follow established antistatic procedures. There are static-sensitive parts on the
printed circuit boards.