MLS MLSH041 Manual de instalación descargar pdf (Pagina 17)

ALIGNMENT AND TROUBLESHOOTING PROCEDURES

LBI-38438A 17

5.2.3 Adjustment System

5.2.4 Transmitter Adjustment Procedure

STEP ITEM

TEST

POINT

TUNING

CONTROL PROCEDURE

1 Initial

Setting

Turn the volume on APC RV1,

RV2 fully counterclockwise

(CCW).

2 Confirming

the voltage

TP4

Disconnect RF cable P101 from

connector J201.

Turn on the power.

Turn on the PTT (ground J701-2).

Confirm voltage of TR8 collector

is 9V at TP4 and that the relay K1

clicks at this time.

3Setting

APC off

power

RV1

RV2

Connect RF cable P101 to J201.

Turn the control RV1 on APC

fully clockwise (CW).

Next, turn the volume RV2 slowly

CW and set an output of 70W

±2W at the highest frequency of

each band.

4 Confirming

minimum

power

RV1 Turn the volume RV1 on APC

fully CCW and confirm minimum

power of 30W or less.

5 Confirming

APC on

power

RV1 Turn volume RV1 on APC slowly

CW and set an output of 64W

±2W at the highest frequency of

each band. 60W or more for other

frequencies.

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MLS MLSH041 Manual de instalación Pagina 17

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