Alignment Procedure; Introduction; Test Equipment Required; Sinad Meter Block Diagram - Motorola R-2002A Manual

A12 FRNT PNL
A3 SCOPE/DVM CONTROL
INTERFACE
SINAD IN
3
It-----
ATTEN
6
3 1KHz
r----
OET
f------
SINAD OUT
NOTCH FIL
DET .....-....SINAD IN
CONTROL
t
I
A9
PROCESSOR
8521-38
Figure 5-12. Sinad Meter Block Diagram
5-99. ALIGNMENT PROCEDURE
5-100. Introduction
5-101. This section provides a basic (para5-105) and an extended (para 5-118) alignment procedure.
The basic procedure requires only the use of a calibrated oscilloscope. It is expected that the basic alignment
be performed whenever service work is performed. The extended alignment procedure requires module
extenders and a calibrated digital voltmeter in addition to the oscilloscope. The extended procedure should be
performed as required after servicing the system. All adjustments not covered in this procedure are to be
performed on suitable module test fixtures only.
5-102. Test Equipment Required
5-103. The test equipment or its equivalent listed in table 5-3 is required for the basic procedure. The
additional equipment required for the extended procedure is listed in table 5-4.
Table 5-3. Basic Test Equipment Required
Description
Model
*Oscilloscope Motorola R1004A
Test Point Shorting Jumper
Nonmetallic Alignment Tool
*A R2001A is a suitable substitute
5-22
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