Performance Checks - Motorola ASTRO XTS 3500 Basic Service Manual

Performance Checks

Introduction
to This Section
Setup
Display Radio
Test Mode
Entering Display
Radio Test Mode
This section covers performance checks used to verify the radio meets
published specifications. The recommended test equipment listed in the
previous section approaches the accuracy of the manufacturing equipment,
with a few exceptions. Accuracy of the equipment must be maintained in
compliance with the manufacturer's recommended calibration schedule.
Checks should be performed if radio performance degradation is suspected.
Supply voltage can be connected from the battery eliminator. The equipment
required for alignment procedures is connected as shown in the "Radio
Alignment Test Setup" diagram (page 15, Figure 1).
Initial equipment control settings should be as indicated in the following
table, and should hold for all alignment procedures except as noted in Table 4.
Table 4 Initial Equipment Control Settings
System Analyzer
Monitor Mode: Pwr Mon
RF Attn: –70dB
AM, CW, FM: FM
O'scope Source: Mod
O'scope Horiz: 10mSec/Div
O'scope Vert: 2.5kHz/Div
O'scope Trig: Auto
Monitor Image: Hi
Monitor BW: Nar
Monitor Squelch: Mid CW
Monitor Vol: 1/4 CW
1. Turn the radio on.
2. Within 10 seconds after "S S S S e e e e l l l l f f f f T T T T e e e e s s s s t t t t " is complete, press Side button 3 five
times in succession.
3. The radio will show a series of displays that will give information
regarding various version numbers and subscriber specific information.
The displays are described in Table 5 on page 8.
4
Test Set
Spkr Set: A Voltage: 7.5Vdc
Spkr/Load: Speaker DC On/Standby: Standby
PTT: OFF (center) Volt Range: 10Vdc
Current: 2.5Amps
Power Supply
7