NEC Mcu 5000a Multipoint Control Unit Equipment Manual

NECA 340-414-210 Revision 2.0 Page 1 of 4
MCU 5000A Multipoint Control Unit INP-003
 OPEN/REMOVE FRONT COVER
GENERAL: 
This procedure describes how to open and remove front cover of the MCU 
5000A.
APPARATUS: 
Phillips Type 
Screwdriver 
SUPPORT DATA: 
None
STEP PROCEDURES
1 If cover is already open, go to Step 4.
2 Using index fingers, slide the locking knobs of front cover to inside.  (See Fig. 1 (a), (b))
3WARNING:  
FRONT COVER SHOULD BE LOWERED (180°) WITH BOTH HANDS.  
ALLOWING COVER TO DROP FREELY...

Page 2 of 4 NECA 340-414-210 Revision 2.0
INP-003 MCU 5000A Multipoint Control Unit
Figure 1:   Opening Front Cover
(a)  Unlock Front Cover
(b)  Slide the Locking Knobs to Inside
(c)  Open Front Cover 

NECA 340-414-210 Revision 2.0 Page 3 of 4
MCU 5000A Multipoint Control Unit INP-003
Figure 2:   How to Remove Earth Wire
Figure 3:   How to Remove Cover out of Right Hinge (1) 
Figure 4:   How to Remove Cover out of Right Hinge (2) 
RIGHT HINGECOVERABOUT
30°
RIGHT HINGE FRONT COVER 

Page 4 of 4 NECA 340-414-210 Revision 2.0
INP-003 MCU 5000A Multipoint Control Unit
This page is for your notes. 

NECA 340-414-210 Revision 2.0 Page 1 of 4
MCU 5000A Multipoint Control Unit INP-004
INSTALL/CLOSE FRONT COVER
GENERAL: 
This procedure describes how to install and close front cover of the MCU 
5000A.
APPARATUS: 
Phillips type Screwdriver
SUPPORT DATA: 
None
STEP PROCEDURES
1 If cover is installed but open, go to Step 8
.
2 Grasp cover’s right and left sides with both hands.
3 Insert the hinge pin under the left side of front cover to holder of shelf.  (See Fig. 1.)
4 Lift front cover approximately 30°....

Page 2 of 4 NECA 340-414-210 Revision 2.0
INP-004 MCU 5000A Multipoint Control Unit
Figure 1:   Inserting the Left Side Hinge Pin of Front Cover
Figure 2:   Inserting the Right Side Hinge Pin of Front Cover
FRONT COVER
RIGHT HINGE FRONT COVER
ABOUT
30°
ABOUT
30° 

NECA 340-414-210 Revision 2.0 Page 3 of 4
MCU 5000A Multipoint Control Unit INP-004
Figure 3:   Connecting the Earth Wire
EARTH WIRE
EARTH TERMINAL 

Page 4 of 4 NECA 340-414-210 Revision 2.0
INP-004 MCU 5000A Multipoint Control Unit
Figure 4:   Locking the Knobs of Front Cover 

NECA 340-414-210 Revision 2.0 Page 1 of 2
MCU 5000A Multipoint Control Unit INP-005
TURN ON/OFF POWER SWITCH
GENERAL: 
This procedure describes instruction for turning ON/OFF Power Switch.
APPARATUS: 
None
SUPPORT DATA: 
INP-003, INP-004
Figure 1:   Turn ON/OFF Power Switch
STEP PROCEDURES
1 Open front cover of MCU 5000A.
2 Is the power switch turned ON or OFF?
If ON
, go to Step 3
.
If OFF
, go to Step 4
.
3 Turn power switch to ON position.  Verify that power lamp (green, marked PWR) lights.
4 Turn...

Page 2 of 2 NECA 340-414-210 Revision 2.0
INP-005 MCU 5000A Multipoint Control Unit
This page is for your notes.