Agilent Technologies 8453 Operator's Manual page 229

Maintenance and Repair
Exchanging the Optical Unit
Replacing the Optical Unit
1 Place the optical unit onto the bottom chassis of the instrument. Tighten the
three hexagonal screws that hold the optical unit on the chassis of the
instrument, see Figure 38.
2 Connect the shutter cable to the SPM board and the flat ribbon cable to the
spectrograph, see Figure 38.
3 Replace the deuterium and tungsten lamps, see "Exchanging the Deuterium or
Tungsten Lamp" on page 96.
4 Replace the upper rear and upper front foam blocks.
5 If available, replace any accessory board or MIO board (plugged in from the
rear side of the instrument).
6 Replace the plastic and sheet metal front and rear covers. Push the plastic
front and rear covers down so that they locate on both sides, see "Removing
and Replacing Covers" on page 109.
7 Reconnect line power and turn on the instrument. Check that the
spectrophotometer passes its self-test, this means that the green light on the
front panel comes on and that you can do a blank measurement from your
software.
123