Mircom LT-6753-QMB-5000B Operating instructions

Brand: Mircom

Model: LT-6753-QMB-5000B

Type: Operating instructions

LT-6753 Rev 0 August 2023 Page 1 of 2

QMB-5000B

Audio Motherboard and

Card Cage

Contents:

• QMB-5000B Audio Motherboard Card Cage

• 4 screws for the deadfront and 4 hex nuts for mounting into QBB-5001R

The QMB-5000B Audio Motherboard Card Cage can be installed in one enclosure, the QBB-5001R Expansion

Audio Cabinet.

See manual LT-894/ LT-894SEC for installation and wiring information.

Figure 1 QMB-5000B Audio Motherboard and Card Cage and Mounting Hole Locations

4 Screws

Deadfront

Backplane

Amplifier Slot Positions

2 3 4 5 6 7 8

Amplifier Guide

Rails

Mounting

Holes

LT-6753 Rev 0 August 2023 Page 2 of 2

Place card cage over the four studs located in the QBB-5001R. Fasten the amplifier card cage to the backbox

using the four hex nuts provided with the QMB-5000B.

Figure 2 Placement of QMB-5000B Audio Motherboard in QBB-5001R Expansion Audio

Cabinet

12 VDC BATTERY 12 VDC BATTERY

INLINE FUSE 50A

- BATTERY +

XFORMER

Black

120 or

240 VAC

Input

IN OUT

Red

QBC-5000N

QMB-5000B

Motherboard

BATTERY

CHARGER

CONNECTORS FOR MULTIPLE

QMB-5000B MOTHERBOARDS

SLOT #1

CONNECTOR IS

NOT USED

SLOTS #2 - #8

CONNECTORS FOR

QAA- STYLE AMPLIFIERS

CONNECTOR FOR QBC-5000N

BATTERY CHARGER

QPS-5000N

POWER

SUPPLY

TS1

JW1

Orange-Yellow-Orange

(MUST BE IN CORRECT ORDER)

This represents the

Battery Disconnect

Relay located on the

left side of the box.

Battery

Disconnect

Relay

L N

Mircom LT-6753-QMB-5000B Operating instructions

Mircom LT-6753-QMB-5000B Operating instructions

Mircom LT-6753-QMB-5000B Operating instructions

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