HD9084 HDTV Caption Encoder Manual
TECHNICAL DESCRIPTION
Page 5-5
5.2.5.2.
Power Cycle Complete Upgrade
1. After the Uploaded file is complete, the BOOT> prompt will appear in the terminal program.
2. The user must type in “boot” without quotations for the unit to warm boot.
3. The upgrade procedure is complete.
5.3.
SERVICING INSTRUCTIONS
CAUTION – These servicing instructions are for use by qualified service
personnel only. To reduce risk of electric shock, do not perform any
servicing instructions in this section of the manual unless you are qualified
to do so.
CAUTION – If the unit is fitted with dual power supplies, make sure that
power is removed from both supplies before performing any work on the unit.
5.3.1.
Changing the Fuses
Check that the line fuse is rated for the correct value marked on the rear
panel. Never replace with a fuse of greater value.
The fuse holder is located inside the power entry module. To change the fuses, pull out the fuse holder
from the power entry module using a small screwdriver. The fuse holder contains two fuses, one for
the line and one for the neutral side of the mains connection. Pull out the blown fuse and place a fuse
of the correct value in its place. Use time delay 5 x 20 mm fuses rated for 250 Volts with a current
rating of 1 amp. Carefully reinsert the fuse holder into the power entry module.
5.3.2.
Replacing the Battery
The HD9084 is fitted with a 3V 20mm diameter Lithium battery type CR2032. This battery is used to
power the system time clock while power is removed from the unit. If the unit is not keeping time
properly when it is powered down, the battery should be replaced according to the procedure outlined
in section 5.3.2.1.
Before attempting to change the battery remove power from the 5600MSC
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