Motorola CDM750 Service- en installatiehandleiding - Pagina 18

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Motorola CDM750 Service- en installatiehandleiding

CDM Control Station Installation

Additional Considerations

requirements of each installation. These levels are set with

trim pots located on the back panel of the inner chassis.

• POT1 (IC/MON)

This potentiometer allows adjustment of the Inter-

com/Parallel audio level to the internal speaker.

• POT2 (ACC RX)

This potentiometer allows the Accessory RX audio

level to be set.

• POT3 (HEADSET)

This potentiometer provides audio level adjustment

for Radio RX to the Headset.

Additional Considerations

Radio Control Head Speaker

Since the Control Station comes equipped with an internal

speaker, it is recommended that the radio speaker (located in

control head) be disabled. This is accomplished by removing

the front panel of the control head and unplugging the

speaker lead wires.

Radio Programming Parameters

The Control Station requires that several radio parameters be con-

figured to allow proper Control Station operation.

Jumper

JU1

Headset mic audio output level

JU2

Local mic audio output level

JU3

Desk mic audio output level

JU4

Accessory mic audio output level

JU5

Desk mic monitor logic

Before beginning installation, remove all items from the

packing container and check them against the items refer-

enced in one of the parts lists on page 3-7. This assures that

you have received all items necessary to assembly the Con-

trol Station. Immediately report any missing or damaged

items to Motorola Product Services.

The following steps explain how to disassemble the Control

Station housing and how to reassemble it while installing the

radio and necessary cables.

Disassembling the CDM Control Station

Housing

The following steps cover the disassembly of the Control

Station housing. Refer to Figure 3-3 and Figure 3-4 on pages

3-7 and 3-8 for identification of each part and its correspond-

ing reference number.

3-2

Table 3-1. Jumper Settings

Function

Gain added

Desk mic not installed

6880309N15-A

NOTE

• Accessory Configuration/RX Audio Type

must be set for Filtered Audio.

• Accessory Pins/Pin #3 must be set for

External Mic PTT (Input).

Desk Microphone

JU1 of the Desk Microphone (HMN3000) must be installed to

allow proper base station intercom operation. The jumpers

keeps the microphone circuit active at all times, thus allowing

proper base station intercom function. Instructions for install-

ing this jumper can be found in the HMN3000 Installation

Guide, 6880903Z37.

Basic Disassembly/Assembly

NOTE

Unless specifically instructed otherwise, DO

NOT discard any hardware removed during

disassembly.

In order to conserve space in the packing box, the Control Sta-

tion housing is shipped completely assembled with the fan

assembly, top cover, power supply, and control circuitry

installed. To install the radio and configure the unit, the Con-

trol Station may have to be completely disassembled. With the

Control Station disassembled, you can begin to install the

radio and configure the Interface Module before reassembling

the housing.

Nominal Gain

Desk mic installed

Removing the Housing Cover

Place the Control Station on a flat surface.

Observe proper procedures for handling ESD sen-

sitive devices.

Remove the six (6) TT3.5mm, pan head Taptite

screws, located on the sides of the housing using a

Torx T15 driver.

From the front, lift the top cover up until it clears

the base, turning it on its side and placing it on the

surface at a 90 degree angle from the base.

Disassembling the Inner Chassis

Most installations will not require access to the Control Sta-

tion Interface Module (CSIM) located inside the inner chas-

CDM Control Station

Out (default)

October, 2004