Basic Operation & Movements Of The Unit - Pioneer DRM-5004X User Manual

Overview
1.2 Basic Operation and Movements of the Unit
1
The basic operation of the unit and movements of internal compo-
nents are described in the sections below.
1.2.1 Mechanical Initialization
When the power of the DRM-5004X is turned on, mechanical initial-
ization is started when the front door is closed and disc magazines
are properly seated and their shipping plates are removed. During
initialization, the green LED, located on the top front panel, flashes.
After initialization is completed, the green LED stops flashing and
remains lit continuously.
Mechanical movements during initialization are as follows:
1. The slider mechanism and swing arm are moved to a
horizontally centered position on the disc transport.
2. The disc transport is lowered to the bottom of the unit.
NOTE: The slider mechanism and the swing arm must be centered,
and all disc magazines must be correctly inserted before any vertical
movement within the changer can take place.
NOTE: If the front door is opened during initialization, mechanical
movement is stopped immediately. After the door is closed, initializa-
tion can be resumed by powering off and then powering on the unit.
Position of the disc magazines and the presence or absence of shipping
plates is checked by infra-red (IR) sensing. There is a small hole in the
front center section of each magazine. IR sensors are located above
and below the hole. If the magazine position is not correct, or if a ship-
ping plate is inserted into the magazine, IR is not detected by the sen-
sors and initialization of the unit will not take place.
If the front door is opened during normal operation, the control CPU
for the changer mechanism stops all movement and returns an error
message to its host computer. When the door is closed after this, no
mechanical movement is resumed. Either the unit must be powered
OFF and then powered ON again, or the host computer must send a
command to return all mechanical elements and discs to their origi-
nal or center position.
Pioneer DRM-5004X CD-ROM Jukebox User's Guide TP #120 v .1.0 2/95 1 - 5