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• The ACD-HD is an option board exclusively for the TU-604CI.
• This option board can be used as an HD Radio when inserted in
one of the option slots on the main unit's rear panel.
• The option board can be inserted into any of the option slots (3
to 6) on the rear panel.
• Read the main unit’s manual carefully before assembling.
• For operating instructions, see the TU-604CI’s owner’s manual.
Check that the following parts are supplied with the product.
q Owner’s manual ......................................................................1
w Warranty (for North America model only) ................................1
e Service station list ...................................................................1
r Audio cable ..............................................................................1
t AM loop antenna (Large) .........................................................1
y FM indoor antenna ..................................................................1
u Hand screw .............................................................................2
Accessories
r t y
u
1
Unplug the power cord.
2
Make the preparations for mounting the option
board.
n When mounting an option board for the first time
n When replacing option boards
3
Insert the option board.
4
Use the two xing screws to fasten the option board to
the main unit.
Remove the two screws fixing the
cover, then remove the cover.
q Remove the two screws fixing
the option board.
w Screw in the two hand screws
about 5 mm, then pull out the
option board.
e Remove the two hand screws.
e
ACD-HD
[Option Board] Owner’s manual
NOTE
Always be sure to turn off the power and unplug the power cord
before mounting or removing option boards. Doing so with the power
turned on could cause damage.
Installing
NOTE
Push the option board all the way
in.
NOTE
Not fixing the option board with
the two screws could lead to poor
contact or other problems.
When replacing an option board, we recommend mounting the two
hand screws removed in step 2 to the option board to store them.
(See the diagram above.)
• Reuse the two fixing screws to
fasten the option board.
• Be sure to keep the removed
cover for future use.
Denon Brand Company, D&M Holdings Inc.
Printed in China 00D 511 4741 001
www.denon.com
Reuse the two fixing screws to
fasten the option board.
CAUTION:
• Because of risk of accidental ingestion, please keep small
components such as screws out of reach of children.
• Never disassemble or modify the unit in any way.