• Topic ID: id_12374186
  • Version: 1.16
  • Date: Feb 27, 2020 4:57:36 PM

Removing the exciter

Remove 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).
Notice Image
  • 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 Image
  • 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.

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

  1. 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
  2. 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.
  3. Carefully slide the exciter out of the PEN cabinet.