Troubleshooting a note about fiber maintenance – Grass Valley SHED Jul 25 2014 User Manual

Page 19

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15

SHED and HDX

User Guide

Troubleshooting

A Note About Fiber Maintenance

As with any fiber optics system, connector cleanliness is one of the most important factors
leading to a successful implementation. The ST connectors on the various components are
very easy to clean with a "Kem-wipe" and 100% pure isopropyl alcohol. There are a number
of other cleaning methods available.

In terms of cleaning the hybrid connector, there are only two acceptable methods. The first
involves having the proper alcohol swab that can be inserted into the optical cavity without
harming the ceramic alignment sleeve. These are one-time use. The other involves removal
of the alignment sleeve via a special tool made by LEMO and others and then using
conventional cleaning methods once the termini is exposed.

Having a routine maintenance/cleaning schedule for all of your fiber optic gear will provide
you with many years of reliable service.

Symptom

Possible Cause

Corrective Action

No AC IN indication

Power source

Verify correct VAC selector
setting
Be sure power switch is On:

1 = On; 0 = Off

Check fuses

Camera will not power.
RED LEDs for Cable Short
or Cable Open

Bad SMPTE Hybrid cable

Check for electrical problems
with hybrid cable and/or
replace the hybrid cable that
connects the CCU to the SHED-
BS or the CAMERA to the the
HDX/SHED-C

No Optical Link. Optical
Power Meter reads
>20bDm

Bad fiber link

• Verify CCU/CAM is on and

optics are working

• Check all fiber to ensure that

connectors are clean and that
there are no bend-radius
issues along the run. Minimize
in-line connectors and
patches, if possible.

HV not being applied (No
HV LED = GREEN)

Camera system not
powered. Improper
camera system

Make sure that the camera
system is supported

Make sure that the camera
system is powered

CAM stays powered ON
when CCU is powered off

Switch in wrong position
at HDX

If you wish the camera to power
down when the CCU is turned
(only if this option is installed)

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