NEC Mcu 5000a Multipoint Control Unit Equipment Manual
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NECA 340-414-500 Revision 2.0 Page 3 of 4 MCU 5000A Multipoint Control Unit TCP-017 REPLACEMENT OF UNIT STEP PROCEDURE REFERENCE NO. 8 Verify that the switch and strap settings of the new unit coincide with that of the removed unit. If YES, go to Step 9. If NO, set the correct settings of switch and strap. Then, go to Step 9. 9 Insert the new unit into the appropriate slot. 10 Make sure that the connector on the rear of the unit is correctly inserted into the slot. 11 Push up on the bottom ejector and pull down on the bottom ejector. 12 Raise front cover and using index fingers, slide to locking knobs to outside of front cover.INP-004 13 Turn ON the power switch, if necessary. 14 End of procedure.
Page 4 of 4 NECA 340-414-500 Revision 2.0 TCP-017 MCU 5000A Multipoint Control Unit This page is for your notes.
NECA 340-414-500 Revision 2.0 Page 1 of 2 MCU 5000A Multipoint Control Unit TCP-018 REPLACEMENT OF MEMORY CARD BATTERY GENERAL: This procedure describes how to replace the battery for memory card which is of SRAM type and backed up by a lithium battery used in the MCU 5000A. APPARATUS: Small Phillps-head screwdriver STEP PROCEDURE REFERENCE NO. WARNING: 1: In replacing the battery due to such causes as voltage drop, mount the memory card on the M CONT unit and keep the power of the MCU 5000A on (power is fed to the memory card). 2: The contents of memory card disappear if the battery is removed from the memory card being pulled out of the equipment. CAUTION: There is a WRITE-PROTECT SWITCH on the front edge of the card. the switch is set to WRITE - PROTECT ON position. do not change the setting (state of NO WRITE - IN ). 1 Loosen the screw on the front edge with a small screwdriver until it comes out 4 to 5 mm. (See Fig. 1.) 2 Pull out the battery holder. Secure the card so that it may not come out. (See Fig. 2.) 3Turn the Å face of the new battery to the left and set it into the battery holder. (See Fig. 3.) 4 Insert the battery holder until it seats in the correct position. (See Fig. 4.) 5 Tighten the screw and fix the holder. (See Fig. 5.) 6 End of procedure.
Page 2 of 2 NECA 340-414-500 Revision 2.0 TCP-018 MCU 5000A Multipoint Control Unit REPLACEMENT OF MEMORY CARD BATTERY Figure 1: Loosing Screw Figure 2: Removing Battery Figure 3: Setting Battery Figure 4: Insert Battery Figure 5: Tighten Screw
NECA 340-414-500 Revision 2.0 Page 1 of 2
MCU 5000A Multipoint Control Unit TCP-019
CHECK ON STATE AND KIND OF MEMORY CARD
GENERAL:
Condition of memory card insertion, battery voltage, write - protect
setting, and kind of memory card are checked in accordance with the
following.
APPARATUS:
MCU console
STEP PROCEDURE REFERENCE NO.
1 Start up the console.TCP-016
2Enter the RMCS
command as shown below.
RMCS
¿
COP-168
3 If the response is normal, following response parameters are displayed.
Check the state and kind of the memory card.
Response parameter: ibp k OK
i : state of insertion 0: not inserted
1: inserted
b: battery condition 0: low battery voltage
1: normal
p: write - protect 0: yes
1: no
k: kind of memory card 0: RAM
1: MASK ROM
2: One Time ROM
3: EEPROM
If the response is abnormal, check the error code and retry from Step 2
.
4 End of procedure.
Page 2 of 2 NECA 340-414-500 Revision 2.0 TCP-019 MCU 5000A Multipoint Control Unit This page is for your notes.
NECA 340-414-500 Revision 2.0 Page 1 of 2
MCU 5000A Multipoint Control Unit TCP-020
COPYING CONTENTS OF MEMORY CARD
GENERAL:
To copy the contents of the memory card onto another memory card,
insert the original memory card and the new one alternately following the
directions from the MCU 5000A. Depending on the amount of
information to be copied, it may take one to several times of copying.
APPARATUS:
MCU console
STEP PROCEDURE REFERENCE NO.
1Note:
Error might occur when you try to copy onto the different kind of the
card.
2 Start up the console.
3 Turn on the power of the MCU 5000A.TCP-016
4 Enter the CPMC
command (refer to Chapter 3).
CPMC
¿
COP-169
5 When the response is normal, directive message is displayed. Then,
go to Step 5
.
When the error code is indicated, retry from Step 3
referring to the error code
table.
6 Insert the original memory card into the slot and press the RETURN
key.
7 Pull out the original memory card from the slot, insert the new one and press
the RETURN
key.
8 When the copying is over, the message MORE?
(Y
/N
) appears.
The number of copying times is different depending on the amount of
information to be copied. Repeat the copying as required pressing Y
.
When the copying is completed, the message completed OK
appears. The
completion of copying is verified by that message.
9 End of procedure.
Page 2 of 2 NECA 340-414-500 Revision 2.0 TCP-020 MCU 5000A Multipoint Control Unit This page is for your notes.
NECA 340-414-500 Revision 2.0 Page 1 of 2 MCU 5000A Multipoint Control Unit TCP-021 REPLACEMENT OF BACKUP MEMORY BATTERY GENERAL: This procedure describes the steps for replacing the lithium battery type: (R2032-P5-1 or equivalent) battery for the back up memory of the M CONT unit. APPARATUS: Soldering Iron Figure 1: Mounting Position of Battery STEP PROCEDURE REFERENCE NO. 1 Turn power switch OFF . 2 Open the front cover of the MCU 5000A. 3 Remove the M CONT unit. 4 The battery is soldered to the PWB. Remove it using a soldering iron. The position and condition of mounting are shown in Fig. 1. 5 After replacing the battery, re-install the M CONT unit into the slot and close the cover. 6 End of procedure. MOUNTING POSITION OF BATTERYOFF BATT BATTERY A BATTERY CN 2 PWB +? CN 2 C7C8 ON As seen for A Note: Battery type is CR2023-P5-1 or equivalent.
Page 2 of 2 NECA 340-414-500 Revision 2.0 TCP-021 MCU 5000A Multipoint Control Unit This page is for your notes.