Optima MR450w BASE 1.5T System Service Methods
5690012-2EN Revision 3
Object ID: 00000018WIA30CBD030GYZ
Topic ID: id_12374186 Version: 2.0
Date: Mar 23, 2020 2:31:32 PM

Removing the exciter

Prerequisites


Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	-	20 minutes	-


Tools and test equipment
Item	Quantity	Part number	Manufacturer
Standard Hand Tools	1	-	-

DANGER

Fatal electric shock hazard

Hazardous voltage is present throughout the cabinet when it is energized.

To prevent fatal electric shock, disconnect power and do lockout/tagout on the Power Distribution Unit (PDU) before beginning any work. See the MR Service Safety Manual (5452735).

Warning

Potential retinal burn

Invisible laser radiation may be emitted from disconnected fibers or connectors causing a retinal burn.

Avoid staring into beams or viewing directly with any optical instruments.

Reminders:

Always turn off laser sources before you inspect fiber connections.
Always keep a protective cap on unplugged fiber ferrules.

Notice

Potential component damage

Electrostatic discharge (ESD) can cause permanent damage to electronic components.

Observe the following ESD precautions:

Work on a static-free mat.
Wear a static strap to ensure that any accumulated electrostatic charge is discharged from your body to the ground.
Create a common ground for the equipment being worked on by connecting the static-free mat, static strap, and peripheral units to that piece of equipment.

Notice

Potential component damage

The SFP optical transceiver is very sensitive to electrostatic discharge (ESD), dust, and body oil. When working with the SFP optical transceiver:

Always use ESD protection when handling the SFP optical transceiver to prevent early failure.
Never touch the SFP optical transceiver without being properly grounded.
Never touch the end face of the optical connectors.
Never re-use lens tissue or cleaning swabs.
Always keep a protective cap on unplugged fiber connections.
Always inspect the connection before cleaning.
The SFP must be shipped in antistatic packaging. Discard any SFP shipped or stored without proper ESD protection.
Some SFPs are shipped in insulated envelopes which can produce excessive contaminates. Do not open these containers in the area where you will be working with the SFP. Remove the antistatic bag containing the SFP and move to a clean area to work.

About this task

Overview

This procedure describes how to replace the single drive or dual drive digital exciter (DTX1) module located in the PEN cabinet. Order the correct DTX1 exciter replacement for the site’s system.

The exciter with Fiber optic output is compatible on systems with CAM and on DV systems with ICE and RRX receivers using a clock splitter. The exciter with electric clock is only compatible on Artist/Artist XT, Architect/Architect XT, and later systems.

Procedure

Loosen the thumbscrews that secure the exciter to the PEN cabinet.

Figure 1. Exciter with fiber optic clock outputs

Figure 2. Exciter with electronic clock output

1 Exciter
2 Thumbscrews
Note: Clock cables on the exciter are Twin BNC connector cables. Align pins and keys before connection after replacement.

Disconnect all the cables to the exciter. Note all the cable locations for reconnection. There are connections on both the front and back of the exciter.
Carefully slide the exciter out of the PEN cabinet.

1	Exciter
2	Thumbscrews