Comtech EF Data SDR-54A - Manual (Page 43)

SDR-54A Satellite Demodulator Revision 4
DEMUX Option MN/SDR54A.IOM
5. Carefully remove the DEMUX 8-Channel PCB from the anti-static bag and
connect the ribbon cable assemblies to JP3 and JP4 of the DEMUX 8-Channel
PCB.
CAUTION
Be careful to not bend or break any of the DEMUX mounting pins
when installing the PCB.
6. Plug the DEMUX 8-Channel card into position on the PCB, as shown in
Figure 5-4.
CAUTION
Do not overtighten the screws. Damage to the DEMUX mounting
pins could result.
7. Install four 4-40 screws and split lockwashers.
Figure 5-4. Installation of DEMUX 8-Channel Card
CAUTION
Do not overtighten the securing screws. Damage to the top chassis can
occur.
8. Coat the six top chassis securing screws with a small amount of Loctite 425.
Position the top chassis in place ensuring the tabs are aligned. Press the top
chassis into the bottom while ensuring the LED light tubes and push-button
switches are aligned. Secure the top chassis with the six screws, using a 5/64 hex
driver.
5-9