5-28
Servicing
Replacing Instrument Assemblies
To replace the A2 Source assembly
The A2 assembly, which includes A2A1, A2A2, A2A3, A2MP1, and A2MP2,
must be replaced as a complete unit. Individual components cannot be
repaired.
WARNING To avoid exposure to the laser path of a CLASS IIIb LASER
PRODUCT, do not open the A2A1 assembly. There are no
serviceable components inside. Do not damage the fiber-optic
cable that connects the CLASS IIIb pump laser, A2A3, to the
A2A1 assembly. Other laser paths outside of the A2A1
assembly do not require precautions to maintain safety.
1Remove the instrument’s top, bottom, and right-side covers.
2Remove all cables attached to the A2A2 Laser Modulation Board Assembly.
3Remove the trim strip located on the top of the front frame.
4Use a T-10 TORX driver to remove the six screws that secure the front panel
to the front frame. They are located along the top and bottom of the front
frame.
5Gently move the front panel out to gain access to the back side of the front-
panel OPTICAL OUT connector. Unscrew the fiber-optic cable from the connector.
You may need to cut the cable tie that secures the line switch cable.