SkyVue 8 Laser/APD module replacement

Basic procedure:

  1. Isolate the SkyVue 8 from AC mainspower.

  2. Remove the access door using the supplied key.

  3. Disconnect the cables from the Power Supply Unit (PSU) including the battery.

    NOTE:

    It is very important to disconnect the battery from the SkyVue 8 to ensure that the laser is not powered.

  1. Unscrew the two securing screws from the PSU chassis plate so it can be pulled out to gain better access to the Laser and APD module.

  2. Now the Laser module and avalanche photo diode (APD) module will be visible.


  3. Disconnect the ribbon cable and SMB connector from the module that is being replaced. To avoid damage only pull the gold metal part of the SMB connector.

  4. As seen in step 5, the laser module and APD module each have one M5 x 35 mm long socket captive screw with a plain and spring washer securing them. Use a 4 mm ball-end hexagon-key to remove the screws on the module being replaced.

    WARNING:

    Do not loosen any other screws.

    WARNING:

    Do not replace screws with different length screws.

  1. Remove any protective film from the filters of the new APD and laser modules before mounting them.

  2. Once the screws have been removed pull the module off the locating pins. Fit the new module by pushing it onto the locating pins and then re-assembling, in reverse order, using the original screws, spring washers and plain washers.

  3. Reconnect the ribbon cable and SMB connector to the module before closing and securing the access door.

    NOTE:

    Make sure the module sits flat against the plate before tightening the four screws.