MLS MLSH041 Manual de Instalação descarregar pdf (Página 4)

LBI-38425A DESCRIPTION AND INITIAL ADJUSTMENT

1 DESCRIPTION

The service section contains the information necessary for aligning and troubleshooting

the MLS II (MLSH041) two-way FM mobile radio. In addition, information is provided

for removing and replacing chip components, disassembly procedures and module

replacement procedures.

2 INITIAL ADJUSTMENT

The following adjustments should be made by a certified electronics technician after the

radio has been installed as described in the Installation Manual.

2.1 TRANSMITTER ADJUSTMENT

The transmitter has been adjusted at the factory and should require no readjustment.

However, the antenna length should he adjusted for optimum VSWR, and the frequency

and modulation measured and recorded for future reference. For the complete

transmitter alignment, refer to the Alignment Procedure (see Table of Contents).

2.2 RECEIVER ADJUSTMENT

No initial adjustments to the receiver are required. Refer to the Table of Contents for the

complete receiver alignment.

2.3 RE-INSTALLATION

The MLS II series mobile radios are designed to operate in 12-Volt negative ground

vehicles only. If the mobile radio is moved to a different vehicle, always check the

battery polarity of the new vehicle system.

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MLS MLSH041 Manual de Instalação Página 4